Gas-liquid separation device applied to wheat starch slurry concentration process

Abstract

The invention relates to the field of starch processing, in particular to a gas-liquid separation device applied to a wheat starch slurry concentration process, which comprises a rack, a cyclone is mounted on the inner side of the rack, an equipment box is mounted on the outer side of the rack, a driving shaft is movably connected to a through hole in the outer side of the equipment box through a bearing, and an eccentric wheel is fixedly connected to the middle side of the exterior of the driving shaft. The inner side of the equipment box is rotationally connected with a screen through a rotating shaft, the inner side wall of the equipment box is fixedly connected with a fixed plate, and a movable rod is slidably connected to a through hole in the outer side of the fixed plate; wheat starch slurry is added into the equipment box and then falls on the screen, liquid is fully shaken under vibration of the screen, internal bubbles are disturbed to be separated out from the liquid in a large amount, wheat starch particles collide and rub with one another in the rolling process, tiny bubbles attached to the surfaces of the wheat starch particles effectively fall off, the gas-liquid separation process is further accelerated, and the gas-liquid separation efficiency is improved. Therefore, the gas-liquid separation efficiency is obviously improved.

Description

Technical Field

[0001] The invention relates to the technical field of starch processing, in particular to a gas-liquid separation device used in a wheat starch slurry concentration process. Background Art

[0002] Wheat starch slurry concentration is a key step in wheat deep processing. It aims to remove moisture and gas from wheat starch slurry to obtain high-concentration starch slurry, which provides a good material basis for subsequent starch drying, molding and other processes. Traditional wheat starch slurry concentration processes usually use simple centrifugal dehydration, vacuum filtration and other means, or simple static sedimentation combined with mechanical extrusion to achieve a certain degree of gas-liquid separation and concentration.

[0003] However, these traditional methods have many shortcomings. Although centrifugal dehydration can remove some water, it is not effective in separating tiny bubbles in the slurry. A large number of bubbles still remain in the starch slurry, affecting subsequent processing. Although vacuum filtration helps gas escape, it is complicated to operate, has high energy consumption, and can easily cause some starch granules to be damaged, reducing product quality.

[0004] Therefore, whether it is centrifugal dehydration, vacuum filtration, or static sedimentation combined with mechanical extrusion, it is difficult to efficiently and completely peel off and separate the tiny bubbles attached to the surface of wheat starch particles, resulting in insufficient gas-liquid separation and low concentration efficiency, which cannot meet the modern wheat starch processing industry's demand for high-efficiency, energy-saving, and high-quality concentration technology. Summary of the Invention

[0005] The object of the present invention is to provide a gas-liquid separation device for use in a wheat starch slurry concentration process, so as to solve the problems mentioned in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a gas-liquid separation device for use in a wheat starch slurry concentration process, comprising a frame, a cyclone mounted on the inner side of the frame, an equipment box mounted on the outer side of the frame, a drive shaft movably connected to an outer through-hole of the equipment box via a bearing, and an eccentric wheel fixedly connected to the outer middle side of the drive shaft; The inner side of the equipment box is rotatably connected to a screen via a rotating shaft, the inner side wall of the equipment box is fixedly connected to a fixed plate, a movable rod is slidably connected to the outer through hole of the fixed plate, the bottom end of the movable rod is fixedly connected to an abutment plate, a motor is installed on the top of the cyclone, and the output end of the motor is fixedly connected to a transmission shaft.

[0007] Furthermore, a compression spring is sleeved on the outside of the movable rod, the top end of the compression spring is fixedly connected to the outside of the fixed plate, and the bottom end of the compression spring is fixedly connected to the top of the abutment plate.

[0008] Furthermore, two bevel gears are fixedly connected to the outside of the transmission shaft and the drive shaft, a plurality of swirl plates are provided on the inside of the cyclone, a gear ring is fixedly connected to the upper inner side of the cyclone, and a center frame is fixedly connected to the middle outer side of the transmission shaft; The four raised portions of the center frame are movably connected to a connecting shaft through bearings, the top of the connecting shaft is fixedly connected to a driving gear, the bottom end of the connecting shaft is fixedly connected to two mixing rods, and the outer sides of the multiple driving gears are meshed with the inner side of the gear ring.

[0009] Furthermore, one end of the drive shaft passes through the outside of the equipment box and is fixedly connected to a rotating disk, an eccentric portion of the outer side of the rotating disk is rotatably connected to a swing shaft, the top end of the swing shaft is hinged to a piston rod, the outside of the equipment box is fixedly connected to a fixed cylinder, the outside of the fixed cylinder is connected in sequence to connecting pipe 1 and connecting pipe 2, one end of the connecting pipe 1 passes through the outside of the equipment box and is fixedly connected to a liquid spray pipe.

[0010] Furthermore, a storage box is fixedly connected to the outside of the equipment box, a rubber piston is provided on the top end of the piston rod, and the rubber piston is slidably connected to the inner wall of the fixed cylinder.

[0011] Furthermore, one-way valves are installed inside the connecting pipe 2 and the connecting pipe 1, and the conduction directions of the two one-way valves are opposite. One end of the connecting pipe 2 is connected to the outside of the storage box, and multiple groups of nozzles are set on the outside of the spray pipe.

[0012] Furthermore, a cover is installed on the outside of the cyclone, and the outside of the cover is connected to the bottom of the equipment box through a pipeline.

[0013] Furthermore, the top end of the movable rod is movably connected to one side of the bottom of the screen, and the bottom of the abutment plate is in contact with the outer side of the eccentric wheel.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention is to add wheat starch slurry into the equipment box and then drop it onto the screen. The liquid is fully shaken by the vibration of the screen, and the internal bubbles are disturbed and precipitated in large quantities. At the same time, the wheat starch particles collide and rub against each other during rolling, which causes tiny bubbles on their surface to fall off, accelerates the gas-liquid separation process, improves the separation efficiency, realizes the rapid separation of gas and liquid in the wheat starch slurry, and improves the production efficiency and product quality of the concentration process; during the vibration of the screen, the piston rod is driven to move along the inner wall of the fixed cylinder, and by changing the air pressure in the fixed cylinder, the water in the storage box is sprayed to the outer surface of the screen through the transport pipe and the liquid spray pipe in turn, preventing the wheat starch particles from adhering to the surface of the screen and agglomerating, keeping the pores of the screen unobstructed, ensuring the stability of the gas-liquid separation efficiency, and at the same time, the water curtain formed by the water flow can assist the escape of bubbles and liquid filtration, thereby enhancing the separation effect and concentration quality.

[0015] 2. The present invention also uses screen vibration to initially separate some bubbles from the wheat starch slurry, which is then transported to the interior of the cyclone. With the help of the cyclone plate and planetary gear stirring structure, the centrifugal force of gas-liquid separation is enhanced, prompting the bubbles to escape from the liquid phase more quickly. The stirring structure ensures that the slurry is evenly distributed and continuously tumbles in the cyclone, further promoting the peeling and release of bubbles on the surface of the wheat starch particles. The combination of the two improves the efficiency and thoroughness of gas-liquid separation and reduces the residual gas content in the wheat starch slurry. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings; Figure 1 It is a three-dimensional diagram of the overall structure of the present invention; Figure 2 Schematic diagram of the cover structure in the present invention; Figure 3 Schematic diagram of the internal structure of the cyclone in the present invention; Figure 4 Schematic diagram of the gear ring structure in the present invention; Figure 5 This is a schematic diagram of the storage box structure of the present invention; Figure 6 This is a schematic diagram of the structure of the equipment box in the present invention; Figure 7 It is a schematic diagram of the transmission shaft structure in the present invention.

[0017] Figure numerals: 1, frame; 2, cyclone; 3, cover; 401, equipment box; 402, drive shaft; 403, abutment plate; 404, movable rod; 405, fixed plate; 406, screen; 407, eccentric wheel; 501, transmission shaft; 502, gear ring; 503, center frame; 504, drive gear; 505, connecting shaft; 506, mixing rod; 601, connecting pipe 1; 602, connecting pipe 2; 603, fixed cylinder; 604, rotating disk; 605, swing shaft; 606, piston rod; 607, spray pipe; 608, storage box. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] Example 1: Figure 1-Figure 7As shown, the gas-liquid separation device used in the wheat starch slurry concentration process includes a frame 1, a cyclone 2 is installed on the inner side of the frame 1, an equipment box 401 is installed on the outer side of the frame 1, a drive shaft 402 is movably connected to the outer through hole of the equipment box 401 through a bearing, and an eccentric wheel 407 is fixedly connected to the outer middle side of the drive shaft 402; The inner side of the equipment box 401 is rotatably connected to a screen 406 via a rotating shaft. The inner wall of the equipment box 401 is fixedly connected to a fixed plate 405. A movable rod 404 is slidably connected to the outer through hole of the fixed plate 405. The bottom end of the movable rod 404 is fixedly connected to the abutment plate 403. A motor is installed on the top of the cyclone 2, and the output end of the motor is fixedly connected to the transmission shaft 501.

[0020] The outer sleeve of the movable rod 404 is provided with a compression spring, the top end of the compression spring is fixedly connected to the outer side of the fixed plate 405, and the bottom end of the compression spring is fixedly connected to the top of the abutment plate 403. Two bevel gears are fixedly connected to the outer sides of the transmission shaft 501 and the drive shaft 402. The compression spring provides elastic force and enables the screen 406 to have a certain buffering effect during the vibration process, reduce mechanical shock, and protect equipment components. At the same time, the elastic force of the compression spring realizes the reciprocating motion of the screen 406 under the drive of the eccentric wheel 407, ensuring that the screen 406 can move up and down smoothly and regularly.

[0021] A cover 3 is installed on the outside of the cyclone 2. The outside of the cover 3 is connected to the bottom of the equipment box 401 through a pipe. The top of the movable rod 404 is movably connected to the bottom side of the screen 406. The bottom of the abutment plate 403 is in contact with the outside of the eccentric wheel 407. Example 2: Multiple cyclone plates are installed inside the cyclone 2. It should be explained that the cyclone 2 uses centrifugal force to further separate the gas and liquid in the wheat starch slurry, enhancing the separation effect. The equipment box 401 provides space for the initial separation of the wheat starch slurry. The screen 406 promotes bubble precipitation through vibration and releases bubbles through particle friction. A gear ring 502 is fixedly connected to the upper inner side of the cyclone 2. A center frame 503 is fixedly connected to the outer middle side of the transmission shaft 501. The four protrusions of the center frame 503 are movably connected to a connecting shaft 505 via bearings. The top of the connecting shaft 505 is fixedly connected to a driving gear 504. The bottom end of the connecting shaft 505 is fixedly connected to two mixing rods 506. The outer sides of the multiple driving gears 504 are meshed with the inner side of the gear ring 502.

[0022] One end of the drive shaft 402 passes through the outside of the equipment box 401 and is fixedly connected to a rotating disk 604. The outer eccentric part of the rotating disk 604 is rotatably connected to a swing shaft 605. The top of the swing shaft 605 is hinged to a piston rod 606. The outside of the equipment box 401 is fixedly connected to a fixed cylinder 603. The outside of the fixed cylinder 603 is connected to a connecting pipe 1 601 and a connecting pipe 2 602 in sequence. One end of the connecting pipe 1 601 passes through the outside of the equipment box 401 and is fixedly connected to a liquid spray pipe 607.

[0023] A storage box 608 is fixedly connected to the outside of the equipment box 401. A rubber piston is provided at the top of the piston rod 606, which is slidably connected to the inner wall of the fixed cylinder 603. Both the connecting pipe 2 602 and the connecting pipe 1 601 are installed with a one-way valve inside, and the two one-way valves are opened in opposite directions. The core function of the one-way valve is to ensure that the liquid can only flow in the predetermined direction and prevent the liquid from flowing back. In the liquid spray flushing system, connecting pipe 2 602 is responsible for transporting the water in the storage tank 608 to the fixed cylinder 603, while connecting pipe 1 601 is responsible for transporting the water in the fixed cylinder 603 to the liquid spray pipe 607. The opposite conduction directions of the two one-way valves ensure that the flow direction of water in the two pipes is single and does not interfere with each other. One end of connecting pipe 2 602 is connected to the outside of the storage tank 608, and multiple groups of nozzles are set on the outside of the liquid spray pipe 607.

[0024] Combining the first and second embodiments, it can be seen that the working principle of the present invention is as follows: Initial feeding and separation of wheat starch slurry: Wheat starch slurry is fed through the feed port on the top of the equipment box 401 and falls onto the screen 406. The motor on the top of the cyclone 2 is started, which drives the transmission shaft 501 to rotate. The bevel gear on the transmission shaft 501 rotates accordingly, and further drives another bevel gear to rotate synchronously, driving the drive shaft 402 to rotate. The rotation of the drive shaft 402 causes the eccentric wheel 407 to rotate synchronously. The concave and convex surfaces of the eccentric wheel 407 intermittently contact the abutment plate 403. When the abutment plate 403 contacts the concave surface of the eccentric wheel 407, the screen 406 moves downward under the transmission action of the movable rod 404. When the abutment plate 403 contacts the convex surface of the eccentric wheel 407, the screen 406 moves upward, thereby realizing the up and down reciprocating motion of the screen 406, forming efficient vibration. At this time, the wheat starch slurry on the screen 406 is fully shaken, and the internal bubbles are disturbed and precipitated from the liquid in large quantities. At the same time, the wheat starch particles collide and rub against each other during the tumbling process, causing the tiny bubbles attached to their surface to fall off, thereby accelerating the gas-liquid separation process.

[0025] Wheat starch slurry cyclone separation and intensified stirring stage: After preliminary separation by the screen 406, the wheat starch slurry enters the housing 3 through the pipe at the bottom of the equipment box 401 and then flows into the cyclone 2. The transmission shaft 501 rotates continuously, driving the center frame 503 to rotate synchronously, and then driving the multiple connecting shafts 505 and the mixing rod 506 to rotate; Since the driving gear 504 is meshed with the gear ring 502, when the center frame 503 rotates, the driving gear 504 performs both circular motion and self-rotation, thereby driving the connecting shaft 505 and the mixing rod 506 to rotate. The swirl plate in the cyclone 2 cooperates with the self-rotation of the mixing rod 506 to generate a strong centrifugal force on the wheat starch slurry, further strengthening the gas-liquid separation, ensuring that the slurry is evenly distributed and continuously tumbling, and promoting the peeling and release of bubbles on the surface of the wheat starch particles.

[0026] During the automatic flushing and auxiliary separation phase of the liquid spraying device, the drive shaft 402 rotates and drives the rotating disk 604 to rotate synchronously. The bottom end of the swing shaft 605 moves eccentrically along the outer surface of the rotating disk 604. Under the traction of the swing shaft 605, the rubber piston at the top end of the piston rod 606 reciprocates up and down in the fixed cylinder 603, causing the air pressure in the fixed cylinder 603 to change periodically. When the air pressure decreases, the flushing water in the storage tank 608 flows into the fixed cylinder 603 through the second connecting pipe 602 under the action of atmospheric pressure; When the air pressure increases, the water in the fixed cylinder 603 is transported to the liquid spray pipe 607 through the connecting pipe 1 601 and sprayed out from the nozzle to form a water curtain. The formed water curtain firstly rinses the surface of the screen 406 and promptly cleans off the wheat starch particles adhering to the surface of the screen 406 to prevent the particles from agglomerating and clogging the screen holes, thereby ensuring the smooth flow of the pores of the screen 406 and ensuring the stability of the gas-liquid separation efficiency. Secondly, it assists in the escape of bubbles and the filtration of liquid. The water curtain can further help the bubbles to separate from the liquid phase and has a certain filtering effect on the liquid, thereby enhancing the effect of gas-liquid separation and improving the concentration quality of the wheat starch slurry. The sprayed water flow washes the surface of the screen 406 to prevent the wheat starch particles from adhering and agglomerating, ensuring that the pores of the screen 406 are unobstructed and the gas-liquid separation efficiency is stable. At the same time, the water curtain assists the escape of bubbles and the liquid separation effect, thereby improving the concentration quality of the wheat starch slurry.

[0027] Through the synergistic effect of the above three stages, efficient gas-liquid separation and concentration of wheat starch slurry can be achieved, significantly improving the separation efficiency and concentration quality, and meeting the needs of the modern wheat starch processing industry for efficient, energy-saving and high-quality concentration technology.

[0028] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A gas-liquid separation device used in a wheat starch slurry concentration process, comprising a frame (1), characterized in that: A cyclone (2) is installed on the inner side of the frame (1), and an equipment box (401) is installed on the outer side of the frame (1). A drive shaft (402) is movably connected to the outer through hole of the equipment box (401) via a bearing, and an eccentric wheel (407) is fixedly connected to the outer middle side of the drive shaft (402); The inner side of the equipment box (401) is rotatably connected to a screen (406) via a rotating shaft, the inner side wall of the equipment box (401) is fixedly connected to a fixed plate (405), a movable rod (404) is slidably connected to an outer through hole of the fixed plate (405), the bottom end of the movable rod (404) is fixedly connected to an abutment plate (403), a motor is installed on the top of the cyclone (2), and the output end of the motor is fixedly connected to a transmission shaft (501).

2. The gas-liquid separation device used in the wheat starch slurry concentration process according to claim 1, characterized in that: A compression spring is sleeved on the outside of the movable rod (404), the top end of the compression spring is fixedly connected to the outside of the fixed plate (405), and the bottom end of the compression spring is fixedly connected to the top of the abutment plate (403).

3. The gas-liquid separation device used in the wheat starch slurry concentration process according to claim 1, characterized in that: The transmission shaft (501) and the drive shaft (402) are both fixedly connected to two bevel gears on their outer sides, a plurality of swirl plates are provided on the inner side of the swirler (2), a gear ring (502) is fixedly connected to the inner upper side of the swirler (2), and a center frame (503) is fixedly connected to the outer middle side of the transmission shaft (501); The four raised portions of the central frame (503) are all movably connected to a connecting shaft (505) via bearings; the top of the connecting shaft (505) is fixedly connected to a driving gear (504); the bottom end of the connecting shaft (505) is fixedly connected to two mixing rods (506); and the outer sides of the plurality of driving gears (504) are all meshedly connected to the inner side of the gear ring (502).

4. The gas-liquid separation device used in the wheat starch slurry concentration process according to claim 1, characterized in that: One end of the driving shaft (402) passes through the outside of the equipment box (401) and is fixedly connected to a rotating disk (604). An eccentric portion of the outside of the rotating disk (604) is rotatably connected to a swing shaft (605). The top end of the swing shaft (605) is hinged to a piston rod (606). The outside of the equipment box (401) is fixedly connected to a fixed cylinder (603). The outside of the fixed cylinder (603) is connected in sequence to a connecting pipe 1 (601) and a connecting pipe 2 (602). One end of the connecting pipe 1 (601) passes through the outside of the equipment box (401) and is fixedly connected to a liquid spraying pipe (607).

5. The gas-liquid separation device used in the wheat starch slurry concentration process according to claim 4, characterized in that: The outer side of the equipment box (401) is fixedly connected to a storage box (608), and the top end of the piston rod (606) is provided with a rubber piston, and the rubber piston is slidably connected to the inner wall of the fixed cylinder (603).

6. The gas-liquid separation device used in the wheat starch slurry concentration process according to claim 4, characterized in that: One-way valves are installed inside the connecting pipe 2 (602) and the connecting pipe 1 (601), and the conduction directions of the two one-way valves are opposite. One end of the connecting pipe 2 (602) is connected to the outside of the storage box (608), and multiple groups of nozzles are set on the outside of the liquid spraying pipe (607).

7. The gas-liquid separation device used in the wheat starch slurry concentration process according to claim 1, characterized in that: A cover shell (3) is installed on the outside of the cyclone (2), and the outside of the cover shell (3) is connected to the bottom of the equipment box (401) through a pipeline.

8. The gas-liquid separation device used in the wheat starch slurry concentration process according to claim 1, characterized in that: The top end of the movable rod (404) is movably connected to one side of the bottom of the screen (406), and the bottom of the abutment plate (403) is in contact with the outer side of the eccentric wheel (407).

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