Malt twin-screw separator

Abstract

The utility model discloses a malt double helical fin separator applied to the field of health care products, including integral separate groove and separation groove. Two helical components are arranged in the separate groove, and the helical component includes separate rotating shaft and separate fin, and the rotating direction of the two is opposite, and the speed is same. The pitch of two separate fins is consistent, and the interval between the rotation matching surface of two separate fins is half of the pitch of separate fin. When rotating, the interval of matching surface keeps constant to strengthen kneading and weaken extrusion. The groove bottom of separation groove is inclined to the rear and lower, and the inner rotation component is installed to agitate the flowing water in the separation groove, promotes the separation of sprout body and root hair, and the sealed door of sprout body is arranged at the rear end bottom of separation groove. Root hair flows out with water flow, and sprout body is discharged from the sealed door, realizing the separation of the two. The utility model has simple structure, good separation effect of sprout body and root hair, and less loss of liquid nutrition in sprout body.

Description

Technical Field

[0001] This invention relates to the field of health product manufacturing, specifically to the production of wheat selenium peptide nutritional products, and is a device for separating the buds and roots of malt. Background Technology

[0002] Selenium-enriched wheat peptides, a selenium-containing nutritional supplement, are manufactured using black wheat as the raw material. Black wheat is cultured in a selenium-enriched nutrient solution to produce high-selenium malt. The malt sprouts and roots are then separated. The malt sprouts with higher water content are pulverized into nano-sized fine powder using an angle grinder, and then dried and sterilized to produce the selenium-enriched wheat peptide nutritional supplement. It is difficult to pulverize dried malt sprouts into nano-sized particles; therefore, separation of the sprouts and roots can only be achieved while the sprouts are still moist. Currently, there is no ideal separation equipment for malt. The applicant uses a double-roller extrusion separation method, which can achieve separation of the sprouts and roots, but has two drawbacks: first, the liquid nutrients within the sprouts are lost after extrusion; second, after separation, the roots and sprouts remain entangled, only achieving separation, requiring further drying and separation. Under moist conditions, the sprouts absorb water, causing cell swelling, filling the gaps with water, and significantly increasing density to 1.1–1.3 g / cm³. The root system is fine and relatively dense, and its density increases less after absorbing water than that of the bud. Its wet density is 0.8–1.0 g / cm³. Mechanical rubbing can enhance the separation of the two. This invention utilizes the physical differences between the bud and the root system to achieve their separation.

[0003] The twin-spiral blades in this invention refer to two parallel rotating shafts. Twin-spiral blade separation is often used for solid-liquid separation, such as CN209454229U, a twin-spiral solid-liquid separator, and CN209065713U, a twin-spiral rod solid-liquid separation device. These utilize their extrusion function to squeeze out moisture from solid materials, achieving separation. No patents were found regarding the application of twin-spiral blade structures in the separation of malt buds and roots. Utility Model Content

[0004] The technical problem solved by this utility model is to provide a malt double-spiral blade separator, which separates the buds and roots by means of kneading, squeezing and friction of the spiral blades, and uses the density difference between the two relative to water to achieve separation.

[0005] The technical solution adopted by this utility model is as follows: This utility model malt double-screw blade separator includes an integrated separating tank and a separating trough. Two structurally similar spiral assemblies are installed within the separating tank. Each spiral assembly includes a separating shaft and separating blades. The separating blades are fixed to the separating shaft, and their spiral direction is consistent with the rotation direction of the separating shaft, thus propelling the material forward. The two separating shafts are connected by two gears of the same size and number of teeth. During operation, the two separating shafts rotate in opposite directions but at the same speed. The two separating blades have the same pitch and possess rotating mating surfaces. The distance between the rotating mating surfaces is half the pitch, and this distance remains constant even during rotation, achieving the purpose of enhancing friction and weakening compression. The bottom of the separating tank slopes downwards and backwards, and rotating components are installed within the tank. The number of these rotating components is one or two, including a separating shaft and separating blades fixed to the separating shaft. The separating shaft is connected to one side of a support plate, and the separating shaft drives the separating shaft to rotate. A support plate is fixed at the connection between the separating trough and the dividing trough, maintaining a distance from the bottom of the trough to facilitate the entry of the peeled buds and roots into the dividing trough. The dividing trough is filled with flowing water; the roots flow out of the dividing trough with the water flow, while the buds sink to the bottom of the dividing trough. At the rear bottom of the dividing trough, a sealed door is installed; opening this sealed door allows the buds at the bottom of the dividing trough to be released.

[0006] Furthermore, in order to achieve the separation of buds and roots and save water, the inclination angle of the bottom of the separation tank should be 15° to 25°.

[0007] Furthermore, when the separating shaft and the separating rotating shaft are fixedly connected, the bottom of the separating groove is inclined downwards and backwards, with an inclination angle of 5° to 15°. The diameter of the separating screw is completely submerged in the water, and the length of the separating rotating shaft should not exceed 1 / 3 of the total length of the separating rotating shaft, so as to ensure the separating function of the separating groove.

[0008] Furthermore, the separating shaft and the dividing shaft are connected by a gear set, and the rotational speed of the separating shaft is adjusted by the transmission ratio of the gear shaft to slowly agitate the water in the separating tank. Alternatively, the separating shaft and the dividing shaft are connected by a universal coupling. The separating tank is preferably set horizontally, but it can also be set at an inclination.

[0009] Furthermore, the upper rear end of the separation tank is provided with a door panel that can move up and down, and the up and down movement of the door panel can adjust the water level in the separation tank.

[0010] Furthermore, to avoid dead corners at the bottom of the groove, the bottom shape of the separating groove is an arc shape corresponding to the separating screw pieces.

[0011] The beneficial effects of this utility model are: the utility model has a simple structure, is easy to manufacture, allows for intermittent and cyclical operation, has a good separation effect between buds and roots, and has less loss of liquid nutrients in the buds. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main structure of Example 1; Figure 2 for Figure 1 Top-down front view schematic diagram; Figure 3 for Figure 1 A schematic diagram of the AA cross-section; Figure 4 for Figure 1 A schematic diagram of direction B; Figure 5 This is a schematic diagram of the rear of the separation tank in Example 2; Figure 6 This is a top view schematic diagram of the separation tank in Example 3; Figure 7 This is a schematic front view of the separation tank in Example 4; Figure 8 Schematic diagram of the main structure of Example 5; In the diagram: 1-Power unit, 2-Gear, 3-Separating groove, 4-Separating shaft, 5-Separating screw, 6-Support plate, 7-Separating shaft, 8-Separating screw, 9-Separating groove, 15-Sealing door, 11-Door panel, 12-Gear set, 13-Universal coupling. Detailed Implementation

[0013] The term "separated" refers to a state where the bud and roots are no longer integrated but still intertwined; "peeled" means the bud and roots are no longer intertwined; and "separated" means the bud and roots occupy their own space. The term "roots" includes the husk that is integrated with the roots. The term "front and back" refers to the direction of malt movement; the malt moves from front to back, that is, the attached... Figure 1 The left side is "front" and the right side is "back".

[0014] The attached drawings are explanations and illustrations of the structure of this utility model and do not affect the structure of this solution. For example, supports and reinforcing ribs are not shown. The door opening and closing and sealing structure, the rotation and lubrication structure of the pivot, and the power and gear transmission structure are existing technologies and are not described in detail. Example 1

[0015] The structure of the twin-screw separator in this embodiment is shown in the appendix. Figure 1-4 As shown, the separator functions to separate, peel and separate buds and roots, and structurally includes a separation groove 3 and a separation groove 9 connected as one piece.

[0016] Two mating spiral assemblies are installed within the separating groove 3. These two spiral assemblies have similar structures, including a separating shaft 4 and separating screw blades 5. The separating screw blades 5 are fixedly mounted on the separating shaft 4 with the same pitch. The separating shaft 4 is fixed by bearing devices at both ends, which are respectively fixed to the front groove plate and the support plate 6. The support plate 6 is fixed at the connection between the separating groove 3 and the separation groove 9, maintaining a distance from the bottom of the groove and the water surface, allowing the separated buds and roots to enter the separation groove 9. Gears 2 are installed on the shaft ends of both separating shafts 4 extending from the front groove plate. The two gears 2 have the same size and number of teeth. One of the separating shafts 4 is connected to the output shaft of the power device 1. Thus, when the power device 1 operates, it can simultaneously drive both separating shafts 4 to rotate at the same speed but in opposite directions, together with the gears. The two separating screw blades 5 mate, forming a rotating mating surface, as shown in the attached diagram. Figure 3 As shown. The two separating screws 5 have opposite helical directions. When the two separating screws 5 rotate in opposite directions, since the helical direction of the separating screws 5 is consistent with the rotation direction of the separating shaft 4, both can push the malt to move from front to back, thereby strengthening the interaction between the malt and the screws, as well as between the malts themselves. The spacing (L / 2) between the mating surfaces remains uniform, that is, half of the pitch (L). In other words, during design, manufacturing, and installation, the other separating screw is installed in the middle of the pitch of one separating screw, as shown in the attached figure. Figure 2 As shown. In this way, when the two separate screws rotate simultaneously, the distance between the mating surfaces remains unchanged, thereby enhancing friction and reducing compression.

[0017] When the two spiral components inside the separating trough 3 rotate, they agitate the malt within the trough, causing kneading, squeezing, and friction. This separation of the buds and roots occurs simultaneously with the backward feeding action. To minimize damage to the buds, the separating spiral blades should ideally have a rough surface, such as rubber or plastic, to increase friction and kneading, reduce squeezing of the buds, and prevent the loss of liquid nutrients.

[0018] In this embodiment, two rotating components are installed in the separation tank 9. Each rotating component includes a separation shaft 7 and a separation screw 8. The separation screw 8 is fixedly mounted on the separation shaft 7 and rotates with the separation shaft 7. The front end of the separation shaft 7 is connected to the separating shaft 4, which drives its rotation. The rear end is fixed to the rear tank plate by a bearing device. The function of the rotating components in the separation tank is to agitate the water, allowing the water in the middle of the tank to flow slowly up and down, which helps promote the separation of buds and roots due to their different specific gravities. A sealing door 10 is provided at the bottom rear end of the separation tank. Opening the sealing door 10 allows the separated buds and water that have fallen to the bottom of the separation tank to be released together.

[0019] To avoid dead angles within the separating groove, the bottom of the separating groove is an arc shape corresponding to the separating screw plate. (See attached image) Figure 3 and attached Figure 4 As shown.

[0020] To achieve the separation of buds and roots in water, the separation tank contains flowing water. However, the separation of buds and roots should be carried out in a dry environment, by the friction generated by the separating spiral blades, not in water. Otherwise, the malt will be stirred and floated due to buoyancy, making separation difficult. Therefore, the separation tank should not contain water. For this reason, the separator is designed with an inclined shape, higher at the front and lower at the back, as shown in the attached diagram. Figure 1 As shown, the front part of the separating tank is dry. To avoid water occupying too much space in the separating tank, the bottom inclination angle of the separating tank should be large; to avoid the gravity of the malt becoming the main factor in its forward movement and weakening the effect of friction on the separated buds and roots, the bottom inclination angle of the separating tank should be small. Taking all factors into consideration, the bottom inclination angle of the separating tank should be 5° to 15°. By extending the length of the separating tank, the length of the separating shaft 4, whose diameter is completely submerged below the water surface, should not exceed 1 / 3 of the total length of the separating shaft. For the separating tank itself, to avoid the slow water flow caused by the separating screws stirring up the already separated buds, the bottom inclination angle of the separating tank should be large; to save water, the bottom inclination angle should be small. Taking all factors into consideration, the bottom inclination angle of the separating tank should be 15° to 25°.

[0021] This embodiment operates periodically. During use, malt is gradually fed into the front of the separating tank 3, and water is added to the rear, allowing the water in the separating tank 9 to flow out from the upper rear end. The water flow remains uninterrupted during the malt separation process. In the separating tank, two spiral components work together to separate the buds and roots in the waterless front area. In the water-filled rear area, the agitation of the water helps to detach the roots entangled with the buds. Once in the separating tank, the slowly agitated water flow promotes the rise of the lighter roots and the sinking of the heavier buds. Since the specific gravity of the roots is not significantly different from that of water, the agitation of the separating spiral blades 8 in the rear of the separating tank should not affect the malt that has already sunk to the bottom or the roots floating on the surface. The roots flow out from the upper rear of the separating tank with the water flow, the filtered water is recycled, and the buds sink to the bottom of the separating tank, thus achieving the separation of the buds and roots. When a certain amount of buds are stored at the bottom of the separation tank, the sealed door is opened, and the flow of water in the tank carries the buds out of the tank. The buds and water enter the centrifuge together, the centrifuge dries the buds, the water is recycled and reused, and the buds enter the next process. Example 2

[0022] The structure of this embodiment is as shown in the attached figure. Figure 5As shown, the side plate of the separation tank 9 is raised, and a door plate 11 that can move up and down to seal the water is installed at the upper rear end of the separation tank 9. By adjusting the height of the door plate 11, the water level in the separation tank can be adjusted to avoid the influence of the separation screw blades on the floating roots on the water surface, and to prevent the water flow from carrying the roots below the water surface into the middle and lower part of the separation tank, thus affecting the separation of the roots. The length of the separation shaft that the separation screw blades are buried in the water surface can also be adjusted through this door plate. Example 3

[0023] The structure of this embodiment is as shown in the attached figure. Figure 6 As shown, compared to Example 1, 1) a rotating component is installed inside the separation tank 9, and the separation shaft 7 is connected to the separating shaft 4 via a gear set 12, which drives the separation shaft 7 to rotate. The gear set 12 is located on one side of the support plate 6 and connected to the ends of the two shafts. By matching the gear set 12, the rotational speed of the separation shaft 7 can be reduced, thus achieving slow agitation of the water in the separation tank. 2) The width of the separation tank 9 is increased. Compared to the separating tank 3, the cross-sectional area of ​​the separation tank is increased, and the longitudinal flow velocity of the water in the separation tank is slowed down. With the same length of separation tank, the time for roots to float and buds to sink is increased, which is beneficial for the complete separation of the two.

[0024] This embodiment does not exclude the use of two rotating components, with the separate rotating shaft of each rotating component connected to the corresponding separate rotating shaft through a gear set. Example 4

[0025] In this embodiment, the rotating component from Embodiment 3 is positioned at the front of the separation tank 9. This reduces the agitation of the water at the rear of the separation tank by the rotating component, allowing for complete separation of the buds and roots using gravity and buoyancy. Its structure is shown in the attached figure. Figure 7 As shown. Example 5

[0026] In this embodiment, the separate rotating shaft 4 and the separate rotating shaft 7 are connected by a universal coupling 13, as shown in the attached figure. Figure 8 As shown. The universal coupling is a flexible connection, so the separating groove 3 can be set horizontally, and water in the separating groove 9 will not enter the separating groove 3. The two grooves function independently, and it also provides greater freedom and space for the design of the separating groove 9.

[0027] This invention utilizes the physical properties of buds and roots to achieve separation and isolation of the two within a single device. Intermittent, cyclical operation ensures effective separation of buds and roots while minimizing liquid nutrient loss within the buds. The invention has a simple structure, achievable with minor modifications to existing screw feeder designs.

Claims

1. A malt twin-screw separator, characterized in that: Includes an integrally integrated separating tank (3) and a separation tank (9); Two spiral assemblies are installed in the separating groove (3). The spiral assembly includes a separating shaft (4) and a separating screw (5). The separating screw (5) is fixed on the separating shaft (4). The spiral direction of the separating screw (5) is consistent with the rotation direction of the separating shaft (4). The rotation directions of the two separating shafts (4) are opposite, but their speeds are the same. The pitch of the two separating screws (5) is consistent, and there is a rotating mating surface. The distance between the rotating mating surfaces is half of the pitch. The bottom of the separation tank (9) is inclined downwards and backwards, and a rotating component is installed inside and filled with flowing water. The rotating component includes a separation shaft (7) and a separation screw (8) fixed on the separation shaft (7). The separation shaft (7) and the separating shaft (4) are connected to one side of the support plate (6). A sealing door (10) is provided at the bottom of the rear end of the separation tank (9). The support plate (6) is fixed at the connection between the separating groove (3) and the separating groove (9), and the support plate (6) maintains a distance from the bottom of the groove.

2. The malt twin-screw separator according to claim 1, characterized in that: The bottom inclination angle of the separation tank (9) is 15° to 25°.

3. The malt twin-screw separator according to claim 1, characterized in that: The bottom of the separating groove (3) is inclined downwards and backwards at an angle of 5° to 15°; the diameter of the separating screw (5) is completely submerged in the water, and the length of the separating shaft (4) shall not exceed 1 / 3 of the total length of the separating shaft (4).

4. A malt twin-screw separator according to claim 1, characterized in that: The rotating component may be one or two.

5. A malt twin-screw separator according to claim 4, characterized in that: The separation shaft (7) and the split shaft (4) are connected by a gear set (12).

6. A malt twin-screw decanter according to claim 4, characterized in that: The separate shaft (4) and the separate shaft (7) are connected by a universal coupling.

7. A malt twin-screw decanter according to claim 6, characterized in that: The separating groove (3) is set horizontally.

8. A malt twin-screw separator according to claim 1, characterized in that: The two separate rotating shafts (4) are connected by two gears of the same size and number of teeth.

9. A malt twin-screw separator according to claim 1, characterized in that: The upper rear end of the separation tank (9) is provided with a door panel (11), which can move up and down.

10. A malt twin-screw separator according to claim 1, characterized in that: The bottom of the separating groove (3) is arc-shaped, corresponding to the separating screw (5).

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