High-position pulping and low-position filtering pulp-residue separation assembly and pulping machine

Abstract

A lower grinding wheel is lifted to the upper middle portion of a separation basket, the lower grinding wheel, an upper grinding wheel and a flow collecting cover form a high-position grinding unit, raw materials vertically fall into the bottom of the separation basket after being sheared and smashed at a high speed, and pulp rapidly sinks to a low-position pulp outlet through a filter screen and a leakage hole to be discharged. Dregs spirally rise along the inner wall under the action of centrifugal force and are discharged from a high-position slag outlet. The slag-slurry separation path is optimized, mutual interference is reduced, the slurry outlet efficiency is remarkably improved, and the water content of slag is reduced. Further, breaking rotors and stators are additionally arranged, so that wall breaking and pulp grinding are carried out sequentially, fiber damage is reduced, and the pulp quality is improved; the impeller is arranged at the bottom of the separation basket, slurry diffusion is accelerated, the filter screen blocking risk is reduced, and the device is particularly suitable for high-fiber raw materials. The scheme has the advantages of compact structure, stable transmission, energy conservation, high efficiency and the like, is suitable for processing high-fiber food such as bean products, breaks through the efficiency bottleneck of the traditional technology, and provides an innovative solution for the field of milk-residue separation.

Description

Technical Field

[0001] The present invention relates to a pulp residue separation component, and particularly to a pulp residue separation component and a pulping machine with high-position pulping and low-position filtration. Background Art

[0002] In traditional pulp residue separation technologies, common devices often adopt a bottom pulping design, in which the core grinding unit and the separation area are highly integrated. This design easily causes the raw materials to be prematurely mixed with the separation medium during the crushing process, making the effective components need to migrate over a long distance or penetrate through a dense impurity layer, which not only increases the flow resistance but also reduces the separation accuracy. In traditional pulping equipment, the pulping and separation spaces overlap, and the phenomenon of slurry and residue mixing is serious, further reducing the pulp yield and the residue separation effect. Although some improved technologies attempt to optimize the separation path, they fail to fundamentally decouple the space of the pulping and separation processes and are difficult to break through the efficiency bottleneck. Summary of the Invention

[0003] In order to solve the deficiencies of the above technologies, the present invention provides a pulp residue separation component and a pulping machine with high-position pulping and low-position filtration.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows: A pulp residue separation component with high-position pulping and low-position filtration includes a grinding head housing. A first coupling is rotatably inserted through a central sleeve of the bottom plate of the grinding head housing. A separation basket is connected to the first coupling. A filter screen is attached to the inner wall of the separation basket. A second coupling located within the separation basket is connected to the first coupling. The second coupling is connected to a lower grinding wheel within the separation basket. An inlet channel is provided at the upper central position of the grinding head housing. The inlet channel extends downward to the opening of the separation basket. An upper grinding wheel is connected to the lower end surface of the inlet channel. The upper grinding wheel is axially aligned with the lower grinding wheel. A flow collector is connected to the lower end surface of the inlet channel. The flow collector is sleeved around the upper grinding wheel and the lower grinding wheel at intervals to form a high-position pulping unit. The high-position pulping unit is away from the circumferential side wall and the bottom plate of the separation basket.

[0005] Further, leakage holes are provided on both the circumferential side wall and the bottom plate of the separation basket.

[0006] Further, a first horizontal support plate of the first coupling is located within the grinding head housing. The upper surface of the first horizontal support plate is connected to the separation basket. The separation basket is limited on the first horizontal support plate by a first pin.

[0007] Further, the outer diameter of the first horizontal support plate is smaller than the bottom plate of the separation basket. The leakage holes on the bottom plate of the separation basket are located outside the outer circle of the first horizontal support plate.

[0008] Further, the first vertical shaft of the first horizontal support plate is sleeved downward on the rotating shaft of the motor, and the rotating shaft is in transitional fit with the first vertical shaft. The first vertical shaft of the first horizontal support plate penetrates upward through the central hole of the separation basket, and a second coupling is sleeved on the first vertical shaft located inside the separation basket. The second vertical shaft of the second coupling is in transitional fit with the first vertical shaft.

[0009] Further, the rotating shaft, the first coupling, and the second coupling are coaxially fitted, and are threadedly fitted on the rotating shaft along the common central hole of the first coupling and the second coupling through fixing bolts.

[0010] Further, the second coupling is coaxially and rotatably arranged in the separation space of the separation basket. The second horizontal support plate of the second coupling is axially away from the circumferential side wall and the bottom plate of the separation basket through the second vertical shaft. The upper surface of the second horizontal support plate is connected to the lower grinding wheel, and the lower grinding wheel is limited on the second horizontal support plate through a second pin.

[0011] Further, a slag outlet and a pulp outlet are provided on the side wall of the grinding head housing. The slag outlet is located at the upper part of the side wall of the grinding head housing, and the pulp outlet is located at the lower part of the side wall of the grinding head housing.

[0012] Further, a crushing rotor is sleeved upward on the second coupling. The crushing rotor extends upward into the feeding channel. A crushing stator is sleeved on the inner wall of the feeding channel corresponding to the position of the crushing rotor, and the crushing rotor is simultaneously rotatably arranged in the crushing stator.

[0013] A pulp grinder includes a pulp and slag separation component with high-position grinding and low-position filtration. The outer periphery of the bottom of the separation basket has an impeller, and the blades of the impeller are evenly distributed in the circumferential direction.

[0014] The present invention discloses a pulp and slag separation component with high-position grinding and low-position filtration and a pulp grinder, which have the following remarkable advantages:

[0015] Efficient slag and pulp separation: By raising the lower grinding wheel to the upper-middle part of the separation basket, an independent high-position grinding area and a low-position filtration area are formed, realizing the spatial decoupling of the slag and pulp generation and separation processes, reducing the interference of slag and pulp mixing, and significantly improving the separation efficiency and pulp yield.

[0016] Optimizing the separation path: After the slag and pulp mixture is ground at a high position, it vertically falls to the bottom of the separation basket. The pulp quickly sinks and is discharged through the filter screen and the leakage holes, and the dregs rise spirally under the action of centrifugal force and are discharged from the high-position slag outlet, shortening the separation path and reducing the flow resistance.

[0017] Reducing the moisture content of the dregs: During the separation process, the dregs form a "slag layer" closely attached to the inner wall due to centrifugal force. With the high-position slag discharge design, the slurry carried by the dregs is effectively reduced, and the moisture content of the dregs is significantly reduced.

[0018] Improve product quality: In some of these embodiments, a crushing rotor and a stator are added to achieve breaking the cell wall first and then grinding the pulp, reducing the damage to fiber tissue, lowering the crude fiber content of the slurry, and improving the taste of soy products.

[0019] Enhance fluidity: In some other embodiments, an impeller is added to the bottom of the separation basket to accelerate the diffusion of the slurry through centrifugal force and axial thrust, reducing the risk of filter screen blockage, especially suitable for the efficient treatment of high-fiber raw materials.

[0020] In summary, through spatial decoupling, path optimization, and functional integration, the present invention breaks through the efficiency bottleneck of traditional pulp residue separation technology. Description of the Drawings

[0021] Figure 1 It is a schematic cross-sectional structure diagram of the first embodiment of the present invention.

[0022] Figure 2 It is a schematic three-dimensional structure diagram of a partial structure of the first embodiment of the present invention.

[0023] Figure 3 It is a schematic cross-sectional structure diagram of the second embodiment of the present invention.

[0024] Figure 4 It is a schematic three-dimensional structure diagram of a partial structure of the third embodiment of the present invention.

[0025] In the figure: 1. Grinding head housing; 2. First coupling; 3. Separation basket; 4. Filter screen; 5. Second coupling; 6. Lower grinding wheel; 7. Feed channel; 8. Upper grinding wheel; 9. Current collector cover; 10. Leakage hole; 11. First horizontal support plate; 12. First pin; 13. First vertical shaft; 14. Rotating shaft; 15. Second vertical shaft; 16. Fixed bolt; 17. Second horizontal support plate; 18. Second pin; 19. Residue outlet; 20. Pulp outlet; 21. Crushing rotor; 22. Crushing stator; 23. Impeller. Detailed Embodiments

[0026] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0027] Embodiment 1:

[0028] As Figure 1As shown in the figure, a first coupling 2 is rotatably inserted through a central sleeve of the bottom plate of the grinding head housing 1. The first horizontal support plate 11 of the first coupling 2 is located inside the grinding head housing 1. A separation basket 3 is connected to the upper surface of the first horizontal support plate 11. The separation basket 3 is limited on the first horizontal support plate 11 by a first pin 12. A filter screen 4 is attached to the inner wall of the separation basket 3. Leakage holes 10 are formed in the circumferential side wall and the bottom plate of the separation basket 3. In other embodiments, the separation basket 3 may only retain the basic framework, and the filter screen 4 retains the filtering and blocking function. In this embodiment, the outer diameter of the first horizontal support plate 11 is smaller than the bottom plate of the separation basket 3, and the leakage holes 10 on the bottom plate of the separation basket 3 are located outside the first horizontal support plate 11. In other embodiments, the diameter of the first horizontal support plate 11 is the same as that of the separation basket 3, and the first horizontal support plate 11 is provided with a hole aligned with the leakage hole 10.

[0029] The first vertical shaft 13 of the first horizontal support plate 11 is sleeved downward on the rotating shaft 14 of the motor. The rotating shaft 14 and the first vertical shaft 13 are in transitional fit. The first vertical shaft 13 of the first horizontal support plate 11 penetrates upward through the central hole of the separation basket 3, and a second coupling 5 is sleeved on the first vertical shaft 13 located inside the separation basket 3. The second vertical shaft 15 of the second coupling 5 and the first vertical shaft 13 are in transitional fit. The rotating shaft 14, the first coupling 2, and the second coupling 5 are coaxially fitted and are threadedly fitted on the rotating shaft 14 along the common central hole of the first coupling 2 and the second coupling 5 through a fixing bolt 16.

[0030] The second coupling 5 is coaxially and rotatably arranged in the separation space of the separation basket 3. The second horizontal support plate 17 of the second coupling 5 is axially away from the circumferential side wall and the bottom plate of the separation basket 3 through the second vertical shaft 15. A lower grinding wheel 6 is connected to the upper surface of the second horizontal support plate 17. The lower grinding wheel 6 is limited on the second horizontal support plate 17 by a second pin 18. As Figure 2 shown, the lower grinding wheel 6 is higher than the bottom of the separation basket 3, leaving a bottom space for the separation basket 3. A feed channel 7 is provided at the upper center position of the grinding head housing 1. The feed channel 7 extends downward to the opening of the separation basket 3, and an upper grinding wheel 8 is connected to the lower end surface of the feed channel 7. The upper grinding wheel 8 is axially aligned with the lower grinding wheel 6. A flow collector 9 is connected to the lower end surface of the feed channel 7. The flow collector 9 is sleeved at intervals outside the upper grinding wheel 8 and the lower grinding wheel 6. The flow collector 9 is away from the circumferential side wall and the bottom plate of the separation basket 3.

[0031] A slag outlet 19 and a slurry outlet 20 are provided on the side wall of the grinding head housing 1. The slag outlet 19 is located at the upper part of the side wall of the grinding head housing 1 for discharging soybean residue, and the slurry outlet 20 is located at the lower part of the side wall of the grinding head housing 1 for discharging soybean milk.

[0032] During the operation of the present invention, the motor drives the rotating shaft 14 to drive the separation basket 3 to rotate through the first coupling 2. At the same time, the lower grinding wheel 6 and the upper grinding wheel 8 are linked through the second coupling 5 to form a shearing pulping area. After the soybeans enter through the feeding channel 7, they are crushed into a slurry mixture under the shearing force of the high-speed rotation of the upper and lower grinding wheels.

[0033] The high-position pulping unit formed by the raised lower grinding wheel, the upper grinding wheel, and the current collector hood is located in the upper-middle part of the separation basket. Axially, it connects the feeding channel and the lower part of the separation basket. Compared with the traditional method of pre-setting the lower grinding wheel at the bottom of the separation basket, the slurry separation path is optimized. In the traditional technology, since the lower grinding wheel is located at the bottom of the separation basket, the crushed slurry mixture (slurry + fiber residue) starts to separate at the bottom of the side wall of the separation basket. The slurry needs to penetrate upward or outward from the bottom. The path for the slurry to reach the slurry outlet at the bottom of the grinding head housing is long. And during the separation process, when there is accumulation or the slurry and residue are mixed together, the separation of the slurry is easily interfered. On the contrary, the mixed slurry also affects the centrifugal effect of the residue. The watered residue needs to overcome greater gravity to be lifted from the bottom to the high-position slag outlet. This drawback is due to the overlap of the pulping and separation spaces, resulting in the mutual influence of the slurry and residue during the separation process, not only reducing the slurry output efficiency but also the slurry yield. In the present invention, the soybeans are crushed under the rotating shearing force of the upper and lower grinding wheels to form a slurry mixture. The current collector hood surrounds the lower grinding wheel and the upper grinding wheel on the outside. Since the current collector hood has a lower opening, it can guide the slurry mixture to be vertically thrown into the bottom space of the separation basket formed after raising the grinding wheel along the axial direction. Under the action of gravity, the slurry in the slurry mixture penetrates through the filter screen and further enters the lower cavity of the grinding head housing through the leakage holes. The residue is intercepted in the inner ring of the separation basket. After the preliminary water filtration of the coarse residue, the coarse residue continues to be tightly attached to the inner wall of the separation basket under the centrifugal force, forming a "slag layer" and rising spirally along the inner wall. During this process, due to the preliminary filtration effect, the degree of slurry and residue mixing is low, and the spiral rising speed is also significantly accelerated, maximizing the avoidance of the mutual influence during the slurry and residue separation process. Thus, an innovative design of decoupling the slurry and residue separation path is formed, with medium-high position crushing, medium-low position slurry discharge, and medium-high position slag discharge in the separation basket.

[0034] In summary, in this embodiment, by raising the lower grinding wheel to the upper-middle part of the separation basket, an independent high-position crushing area and low-position separation area are formed, realizing the spatial decoupling of the slurry generation and separation processes. Compared with the interference of slurry and residue mixing caused by traditional bottom pulping, the slurry output efficiency is greatly improved, and the water content of the residue is greatly reduced.

[0035] Embodiment 2:

[0036] As Figure 3As shown, different from the first embodiment, the second coupling 5 is upwardly mounted with a crushing rotor 21, and the crushing rotor 21 extends upwardly into the feed channel 7. A crushing stator 22 is mounted on the inner wall of the feed channel 7 at a position corresponding to the crushing rotor 21, and the crushing rotor 21 is simultaneously rotatably arranged in the crushing stator 22; when the present embodiment is working, the motor drives the rotating shaft 14 to drive the separation basket 3 to rotate through the first coupling 2, and at the same time, the lower grinding wheel 6 and the upper grinding wheel 8 are linked through the second coupling 5 to form a wall breaking area; after the soybeans break through the wall and enter the feed channel 7, they are crushed into a slag slurry mixture under the shear force of the high-speed rotation of the upper and lower grinding wheels, and the collecting flow The cover 9 guides the mixture into the inner circle of the separation basket 3 along the tangential direction; the slurry penetrates the filter screen under the action of centrifugal force and sinks to the bottom of the grinding head shell 1 through the leakage hole and is discharged from the slurry outlet 20, while the bean dregs are subjected to the centrifugal force on the inner wall of the separation basket 3 to form a spirally rising slag layer, which is discharged through the high-position slag outlet 19 after dehydration, forming an axial three-in-one fusion of wall breaking, pulping, and slag-slurry separation functions. By breaking the wall first and then pulping, the pressure shock during the pulping process reduces the damage to the soybean skin fiber tissue, reduces the crude fiber content of the pulp water, and better improves the taste of the soy product. At the same time, combined with the effect of Example 1, the pulping efficiency is further improved.

[0037] Embodiment three:

[0038] like Figure 4 As shown, a pulping machine includes a pulp-residue separation component for high-position pulping and low-position filtration of embodiment 1 or embodiment 2. The bottom periphery of the separation basket 3 is provided with an impeller 23, and the blades of the impeller 23 are evenly distributed along the circumference. The impeller 23 can be transitionally matched with the bottom periphery of the separation basket 3 through an annular connecting plate, or can be integrally formed on the bottom periphery of the separation basket 3. The purpose of providing the impeller 23 is to separate the basket 3. When the separation basket 3 rotates, the circumferential blades of the impeller 23 follow the movement to generate a combined effect of centrifugal force and axial thrust, which promotes the rapid diffusion of the slurry along the radial direction of the bottom of the separation basket 3, promotes the rapid discharge of the slurry, improves the slurry discharge efficiency, and shortens the separation cycle. At the same time, the plug flow effect of the impeller 23 outside the separation basket 3 breaks the laminar flow state of the slurry flow, reduces the risk of filter blockage caused by excessive local concentration, and is therefore particularly suitable for high-fiber raw material processing.

[0039] In summary, the present invention relates to a pulp residue separation component and a pulping machine with high-position pulping and low-position filtration, belonging to the technical field of food processing machinery. Aiming at the problems such as pulp and residue mixing and low separation efficiency caused by the overlapping of pulping and filtration spaces in traditional pulp residue separation equipment, this solution realizes spatial decoupling through structural innovation: the lower grinding wheel is lifted to the upper middle part of the separation basket, and together with the upper grinding wheel and the current collector cover, it forms a high-position pulping unit. After the raw materials are sheared and crushed at high speed here, they vertically fall to the bottom of the separation basket. The slurry quickly sinks through the filter screen and the leakage holes to the low-position slurry outlet for discharge, and the residues rise spirally along the inner wall under the action of centrifugal force and are discharged from the high-position residue outlet. This design optimizes the pulp residue separation path, reduces mutual interference, significantly improves the slurry discharge efficiency and reduces the moisture content of the residues. Further, by adding a crushing rotor and a stator (Embodiment 2), the cell wall is broken first and then pulping is carried out, reducing fiber damage and improving the quality of the slurry; an impeller is arranged at the bottom of the separation basket (Embodiment 3) to accelerate the diffusion of the slurry and reduce the risk of filter screen blockage, especially suitable for high-fiber raw materials. This solution has the advantages of compact structure, stable transmission, energy saving and high efficiency, etc., is applicable to the processing of high-fiber foods such as soy products, breaks through the efficiency bottleneck of traditional technologies, and provides an innovative solution for the field of pulp residue separation.

[0040] The above embodiments are not limitations on the present invention. Unless otherwise clearly specified and defined, the terms "set", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations. The present invention is not limited to the above examples. Changes, modifications, additions, or substitutions made by those skilled in the art within the scope of the technical solution of the present invention also belong to the protection scope of the present invention. In addition, the technical features involved in different embodiments of the present application described above can be combined with each other as long as they do not conflict with each other.

Claims

1. A pulp-residue separation component for high-position refining and low-position filtering, comprising a grinding head housing (1), a first coupling (2) rotatably passing through a central sleeve of a bottom plate of the grinding head housing (1), a separation basket (3) connected to the first coupling (2), a filter screen (4) attached to the inner wall of the separation basket (3); characterized in that: The first coupling (2) is connected to the second coupling (5) located in the separation basket (3), and the second coupling (5) is connected to the lower grinding wheel (6) in the separation basket (3); a feed channel (7) is provided at the upper center position of the grinding head housing (1), the feed channel (7) extends from top to bottom to the opening of the separation basket (3), and an upper grinding wheel (8) is connected to the lower end surface of the feed channel (7), the upper grinding wheel (8) is axially aligned with the lower grinding wheel (6), and a collecting cover (9) is connected to the lower end surface of the feed channel (7), and the collecting cover (9) is spaced and sleeved on the outer periphery of the upper grinding wheel (8) and the lower grinding wheel (6) to form a high-position refining unit, and the high-position refining unit is away from the circumferential side wall and the bottom plate of the separation basket (3).

2. The pulp-residue separation assembly for high-position refining and low-position filtration according to claim 1 is characterized by: Leakage holes (10) are provided on the circumferential side walls and the bottom plate of the separation basket (3).

3. The pulp-residue separation assembly for high-position refining and low-position filtration according to claim 2 is characterized by: The No. 1 horizontal support plate (11) of the No. 1 coupling (2) is located in the grinding head housing (1), and the upper surface of the No. 1 horizontal support plate (11) is connected to a separation basket (3), and the separation basket (3) is upper-positioned on the No. 1 horizontal support plate (11) by a No. 1 pin (12).

4. The pulp-residue separation assembly for high-position refining and low-position filtration according to claim 3 is characterized by: The outer diameter of the first horizontal support plate (11) is smaller than the bottom plate of the separation basket (3), and the leakage hole (10) on the bottom plate of the separation basket (3) is located on the outer circle of the first horizontal support plate (11).

5. The pulp-residue separation assembly for high-position refining and low-position filtration according to claim 4 is characterized in that: The first vertical axis (13) of the first horizontal support plate (11) is sleeved downwardly on the rotating shaft (14) of the motor, and the rotating shaft (14) and the first vertical axis (13) are transitionally matched. The first vertical axis (13) of the first horizontal support plate (11) passes through the center hole of the separation basket (3) upward, and a second coupling (5) is sleeved on the first vertical axis (13) located inside the separation basket (3), and the second vertical axis (15) of the second coupling (5) is transitionally matched with the first vertical axis (13).

6. The pulp-residue separation assembly for high-position refining and low-position filtration according to claim 5 is characterized by: The rotating shaft (14), the first coupling (2) and the second coupling (5) are coaxially matched and are threadedly matched on the rotating shaft (14) along the common center hole of the first coupling (2) and the second coupling (5) through a fixing bolt (16).

7. The pulp-residue separation assembly for high-position refining and low-position filtration according to claim 5 is characterized by: The second coupling (5) is coaxially rotatably arranged in the separation space of the separation basket (3); the second horizontal support plate (17) of the second coupling (5) is axially away from the circumferential side wall and the bottom plate of the separation basket (3) through the second vertical axis (15); the upper surface of the second horizontal support plate (17) is connected to the lower grinding wheel (6); and the lower grinding wheel (6) is limited on the second horizontal support plate (17) by a second pin (18).

8. The pulp-residue separation assembly for high-position refining and low-position filtration according to claim 5 is characterized by: A slag outlet (19) and a slurry outlet (20) are provided on the side wall of the grinding head shell (1); the slag outlet (19) is located at the upper part of the side wall of the grinding head shell (1), and the slurry outlet (20) is located at the lower part of the side wall of the grinding head shell (1).

9. The pulp-residue separation assembly for high-position refining and low-position filtration according to claim 7 or 8, characterized in that: The second coupling (5) is upwardly mounted with a crushing rotor (21), which extends upwardly into the feed channel (7). A crushing stator (22) is mounted on the inner wall of the feed channel (7) at a position corresponding to the crushing rotor (21), and the crushing rotor (21) is simultaneously rotatably arranged in the crushing stator (22).

10. A refiner, characterized in that: The invention comprises the pulp-residue separation component for high-position refining and low-position filtration as claimed in claim 9, wherein the bottom periphery of the separation basket (3) is provided with an impeller (23), and the blades of the impeller (23) are evenly distributed along the circumferential direction.

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