A potato starch slurry-residue separation device

Abstract

This invention discloses a potato starch slurry-residue separation device, belonging to the technical field of starch processing equipment. It includes a frame, on which a separation device housing is fixed. A rotating screen basket is installed inside the separation device housing. A hinged door is connected to the outer side of the rotating screen basket on the separation device housing. A feed conduit passes through the center of the door, and the outlet of the feed conduit extends inward to the center of the bottom of the rotating screen basket. A backflushing water conduit passes through one side of the door. A threaded hole is formed at the center of the bottom of the rotating screen basket, and a mounting stud is screwed into the threaded hole. This device is specially designed with a slurry dispersing component and a screen cleaning component, which can solve the problems of easy clogging at the feed conduit outlet and screen holes in existing technologies.

Description

Technical Field

[0001] This invention relates to the field of starch processing equipment technology, and more specifically, to a potato starch slurry-residue separation device. Background Technology

[0002] The main processes in potato starch processing include: soaking raw materials in a soaking tank → lifting → hydraulic conveying → washing and conveying → washing, destoning, and lifting → crushing and separation → sand removal → concentration and refining → vacuum dehydration → airflow drying → finished product packaging → storage. Among these processes, the separation of pulp and slurry is a crucial step, directly affecting starch extraction rate and quality. The crushed material consists of fine fibers, larger in volume and expansion coefficient than starch granules, but lighter in density. Using water as a medium, the crushed material separates the starch and fibers. A commonly used equipment in current technology is the centrifugal screen, a common separation machine that uses centrifugal force to separate materials. Its working principle involves adding the mixture to a rotating screen basket, where centrifugal force separates particles of different sizes, densities, and shapes.

[0003] The following problems exist in the process of separating starch slurry and residue using a centrifugal screen: First, the distance between the discharge port of the feed pipe and the bottom of the rotary screen basket is too close, which can easily lead to local blockage of the slurry or slow discharge, affecting the separation efficiency; Second, although the backwash water component inside the rotary screen basket can wash out the starch particles in the residue, it can also cause residue to remain in the screen holes of the rotary screen basket, which can easily cause blockage of the screen holes after long-term use. Summary of the Invention

[0004] The purpose of this invention is to provide a potato starch slurry-residue separation device. This device is specially designed with a slurry dispersing component and a screen cleaning component, which can solve the problems of easy clogging at the feed pipe outlet and screen holes in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A potato starch pulp and residue separation device includes a frame, on which a separation device housing is fixed. A rotating screen basket is installed inside the separation device housing. A hinged door is connected to the outer side of the rotating screen basket on the outer housing. A feed pipe passes through the center of the door, and the outlet of the feed pipe extends inward to the center of the bottom of the rotating screen basket. A backflushing water pipe passes through one side of the door. A threaded hole is formed at the center of the bottom of the rotating screen basket, and a mounting stud is screwed into the threaded hole. Three cutting blades are arranged sequentially from top to bottom on the outer side of the mounting stud, forming an equilateral triangle along the axial direction of the mounting stud. An arc-shaped baffle is provided around the outlet of the feed pipe outside the mounting stud.

[0007] As a further optimization of the present application, the feed conduit is fixed with an installation plate on the inner side of the switch door. The installation plate has a water outlet pipe inside. One end of the water outlet pipe is connected to the backwash water conduit, and the other end is connected to several backwash water nozzles surrounding the installation plate. A recessed groove is provided at the edge of the installation plate. A clamping plate is fixed on the feed conduit inside the installation plate. A rotating shaft is installed between the clamping plates. A rotating plate is fixed on the outer side of the rotating shaft. A strip scraper is embedded in the middle of the rotating plate. The outer side of the strip scraper is arc-shaped. An electrically controlled telescopic push rod is connected to the lower surface of the rotating plate near the switch door. The lower end of the electrically controlled telescopic push rod is fixed to the feed conduit. The electrically controlled telescopic push rod is connected to the control switch on the outside through a circuit.

[0008] As a further optimization of the present application, the control switch is embedded in the door.

[0009] As a further optimization of the present application, when the rotating plate is in use, it is lifted by the electrically controlled telescopic push rod on one side, so that the arc surface of the strip scraper contacts the inner screen hole surface of the rotating screen basket.

[0010] As a further optimization of the present application, when the rotating plate is not in use, it can be pulled down by the electrically controlled telescopic push rod on one side and placed inside the recessed groove of the mounting plate.

[0011] As a further optimization of the present application, the rear side of the rotating screen basket is connected to the output shaft of the drive motor via a coupling, and the outer side of the outer shell of the separation equipment is also connected to a starch milk discharge pipe and a potato residue discharge pipe.

[0012] Compared with existing technologies, the beneficial effects of the present invention are as follows:

[0013] The present invention incorporates a structure including a mounting stud, a cutting blade, and an arc-shaped baffle plate, which can disperse the slurry entering from the feed pipe outlet, reducing local blockage or slow discharge of the slurry at the bottom of the rotary screen basket, and allowing the slurry to disperse more quickly into the inner working surface of the rotary screen basket, thereby improving separation efficiency.

[0014] This invention incorporates a strip scraper, a rotating plate, and an electrically controlled telescopic push rod. The electrically controlled telescopic push rod is controlled by a switch to change the position of the rotating plate. When the screen holes become clogged after a certain period of use, the strip scraper cleans the screen holes on the inside of the rotating screen basket. Combined with the back flushing water nozzle on the outside, the slag causing the blockage is scraped away, ensuring the normal operation of the centrifugal screen. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the separation device of the present invention;

[0016] Figure 2 This is a schematic diagram of the inner structure of the opening and closing door of the present invention;

[0017] Figure 3 This is a schematic diagram of the outer structure of the door of the present invention;

[0018] Figure 4 This is a schematic diagram of the stud installation structure of the present invention;

[0019] In the diagram: 1. Frame; 2. Shell of the separation equipment; 3. Rotary screen basket; 4. Opening and closing door; 5. Feed pipe; 6. Backwash water pipe; 7. Mounting plate; 8. Backwash water nozzle; 9. Electrically controlled telescopic push rod; 10. Wiring; 11. Clamping plate; 12. Rotating shaft; 13. Rotating plate; 14. Strip scraper; 15. Arc-shaped baffle plate; 16. Control switch; 17. Mounting stud; 18. Cutting blade. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of the invention easier to understand, the invention will be further explained below with reference to specific illustrations.

[0021] To address the problem of existing feed duct outlets being too close to the bottom of the rotary screen basket, which easily leads to localized slurry blockage or slow discharge, such as... Figure 1 and Figure 4As shown, this application includes a frame 1, on which a separation equipment shell 2 is fixed. A rotating screen basket 3 is installed inside the separation equipment shell 2. A switch door 4 is connected to the outer side of the separation equipment shell 2 of the rotating screen basket 3 via a hinge. A feed pipe 5 passes through the center of the switch door 4. The outlet of the feed pipe 5 extends inward to the center of the bottom of the rotating screen basket 3. A backwash water pipe 6 passes through one side of the surface of the switch door 4. A threaded hole is opened at the center of the bottom of the rotating screen basket 3. A mounting stud 17 is screwed into the threaded hole. Three cutting blades 18 are arranged from top to bottom on the outer side of the mounting stud 17. The cutting blades 18 are distributed in an equilateral triangle along the axial direction of the mounting stud 17. An arc-shaped baffle 15 is provided around the outlet of the feed pipe 5 outside the mounting stud 17.

[0022] Specifically, the cutting blade 18 rotates together with the rotating screen basket 3 to cut and disperse the slurry sprayed from the outlet of the feed pipe 5, reducing the local blockage of the slurry at the bottom of the rotating screen basket 3 or the slow discharge, so that the slurry can be dispersed more quickly into the inner working surface of the rotating screen basket, thereby improving the separation efficiency.

[0023] To address the existing problem of slag residue remaining in the three screen holes of the rotary screen basket, which easily leads to screen clogging after long-term use, such as... Figure 2 and Figure 3 As shown, the feed conduit 5 of this application is fixed with an installation plate 7 on the inner side of the switch door. The installation plate 7 has a water outlet pipe inside. One end of the water outlet pipe is connected to the backwash water conduit 6 and the other end is connected to several backwash water nozzles 8 surrounding the installation plate 7. A recessed groove is provided at the edge of the installation plate 7. A clamping plate 11 is fixed on the feed conduit 5 inside the installation plate 7. A rotating shaft 12 is installed between the clamping plates 11. A rotating plate 13 is fixed on the outer side of the rotating shaft 12. A strip scraper 14 is embedded in the middle of the rotating plate 13. The outer side of the strip scraper 14 is arc-shaped. An electrically controlled telescopic push rod 9 is connected to the lower surface of the rotating plate 13 near the switch door 4. The lower end of the electrically controlled telescopic push rod 9 is fixed to the feed conduit 5. The electrically controlled telescopic push rod 9 is connected to the control switch 16 on the outside through the line 10. The control switch 16 is embedded in the switch door 4.

[0024] Specifically, when the screen holes of the rotating screen basket 3 become clogged, the rotating plate 13 is adjusted to the working state and lifted by the electrically controlled telescopic push rod 9 on one side, so that the arc surface of the strip scraper 14 contacts the inner screen hole surface of the rotating screen basket 3. At this time, the drive motor is started to drive the rotating screen basket 3 to rotate, and with the back flushing water nozzle on the outside, the slag that caused the blockage is scraped away, ensuring the normal operation of the centrifugal screen. After the cleaning work is finished, when the rotating plate 13 is not in use, it is pulled down by the electrically controlled telescopic push rod 9 on one side and placed in the recessed groove of the mounting plate 7.

[0025] The foregoing has shown and described the basic principles and main features of the present invention, as well as its advantages. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A potato starch slurry-residue separation device, comprising a frame, a separation device housing fixed on the frame, a rotating screen basket installed inside the separation device housing, a hinged door connected to the outer side of the rotating screen basket on the separation device housing, a feed pipe passing through the center of the switch door, the discharge port of the feed pipe extending inward to the center of the bottom of the rotating screen basket, and a backwash water pipe passing through one side of the switch door surface, characterized in that: A threaded hole is provided at the center of the bottom of the rotating screen basket. A mounting stud is screwed into the threaded hole. Three cutting blades are arranged in a triangular pattern along the axial direction of the mounting stud on the outer side of the mounting stud. An arc-shaped baffle is provided around the outlet of the feed guide tube outside the mounting stud. A mounting plate is fixed to the inner side of the feed guide tube inside the switch door. A water outlet pipe is provided inside the mounting plate. One end of the water outlet pipe is connected to a backwash water guide tube, and the other end is connected to several backwash water nozzles surrounding the mounting plate. A recessed groove is provided at the edge of the mounting plate. A clamping plate is fixed to the inner side of the feed guide tube inside the mounting plate. A rotating shaft is installed between the clamping plates. A rotating plate is fixed to the outer side of the rotating shaft. A strip scraper is embedded in the middle of the rotating plate. The outer side of the strip scraper is curved. An electrically controlled telescopic push rod is connected to the lower surface of the rotating plate near the switch door. The lower end of the electrically controlled telescopic push rod is fixed to the feed guide tube. The electrically controlled telescopic push rod is connected to an external control switch via wiring. The control switch is embedded in the switch door. When the rotating plate is in use, it is lifted by the electrically controlled telescopic push rod on one side, so that the curved surface of the strip scraper contacts the inner screen hole surface of the rotating screen basket. When the rotating plate is not in use, it is pulled down by the electrically controlled telescopic push rod on one side and placed in the recessed groove of the mounting plate. The rear side of the rotating screen basket is connected to the output shaft of the drive motor via a coupling. The outer side of the separator shell is also connected to a starch milk discharge pipe and a potato residue discharge pipe.

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