Separator for maltodextrin production

Abstract

The invention relates to the technical field of separators, in particular to a maltodextrin production separator which comprises a supporting frame arranged on a production line, a gearbox is arranged on the upper portion of the supporting frame, a separator body is arranged at the output end of the gearbox, and a main shaft is arranged in the middle of the separator body. The lower portion of the main shaft is connected with a gearbox, a plurality of connecting seats are arranged on the side wall of the main shaft, moving blocks capable of moving up and down are arranged in the connecting seats, separation pieces are arranged on the side walls of the moving blocks, and a driving device used for controlling the moving distance of the moving blocks is arranged at the bottom of the main shaft. Efficient separation and flexible adjustment in the maltodextrin solution processing process are achieved, the production efficiency is improved, and the frequency and cost of cleaning and maintenance are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of separators, and particularly relates to a separator for maltodextrin production. Background Art

[0002] Maltodextrin, also known as water-soluble dextrin or enzyme-hydrolyzed dextrin, is a starch hydrolysis product with a DE value less than 20. It is between starch and starch sugar, and is a nutritious polysaccharide with low price, smooth taste and no taste. Maltodextrin is generally a mixture of various DE values. It can be a white powder or a concentrated liquid. Its raw materials are starch-containing corn, rice, etc.; it can also be refined starch, such as corn starch, wheat starch, tapioca starch, etc. Maltodextrin is widely used in candies, malted milk, fruit tea, milk powder, ice cream, beverages, canned foods and other foods, and is a filler and thickener for various foods.

[0003] In the production process, it is necessary to first perform steps such as starch slurry preparation, liquefaction, saccharification, filtration, decolorization, ion exchange, sterilization, evaporation and drying. During the raw material treatment process, since the starch will form lumps and contain some impurities (such as epidermis or fiber residues during processing), a disc separator will be used for the separation of the maltodextrin solution during the filtration process. Due to the different sizes of the impurities, and during the separation process, the impurities will go up first and then turn back to the bottom slag discharge port between the two discs. During this reciprocating process, small particles will aggregate and block between the two discs, and impurities with a slightly larger diameter will also become blocked. This results in that after a certain period of use, the separator needs to be disassembled for cleaning and maintenance, and the internal impurities need to be cleaned. Moreover, the blocked separator will have a greatly reduced separation effect, and there will also be differences in the separation effect for different types of starch. Therefore, a separation device is needed to solve the separation problems existing in the production process of maltodextrin. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiency that the frequent maintenance of the separator affects the use efficiency when maltodextrin is filtered by a disc separator in the prior art, and to provide a separator for maltodextrin production.

[0005] In order to achieve the above purpose, the embodiments of the present invention specifically adopt the following technical solutions: A separator for maltodextrin production includes a support frame arranged on the production line. A gearbox is arranged on the upper part of the support frame. The output end of the gearbox is provided with a separator body. A main shaft is arranged at the middle position of the separator body. The lower part of the main shaft is connected to the gearbox. A plurality of connecting seats are arranged on the side wall of the main shaft. A movable block that moves up and down is arranged inside the connecting seat. A separating plate is arranged on the side wall of the movable block. A driving device for controlling the moving distance of the movable block is arranged at the bottom of the main shaft.

[0006] Furthermore, the interior of the main shaft is hollow and rotatably connected to the feed pipe of the separator body, and a dynamic sealing device is provided at the connection between the feed pipe and the main shaft.

[0007] Furthermore, the separator body includes a conical outer shell disposed outside the separating plate. An outlet pump for discharging materials is provided at the upper part of the main shaft. A bearing for stabilizing the main shaft is provided above the outlet pump. An outlet pipe is provided at the upper part of the outer shell.

[0008] Furthermore, a discharge port is provided at the lower part of the main shaft, and the discharge port is provided on the side wall of the main shaft.

[0009] Furthermore, the bottom of the connecting seat is connected to the mounting groove provided on the side wall of the main shaft, and the interior of the mounting groove is communicated with the driving device through an oil groove provided inside the main shaft.

[0010] Furthermore, the driving device includes a sealing groove provided at the lower part of the main shaft. The number of the sealing grooves is the same as the number of the separating plates, and the inlet of the oil groove is provided inside the sealing groove.

[0011] Furthermore, the sealing groove includes an annular groove provided at the lower part of the main shaft, and sealing rings are provided at both the upper and lower parts of the sealing groove.

[0012] Furthermore, a bottom shell is provided outside the sealing groove, and a plurality of connectors are provided on the outer wall of the bottom shell. The number of the connectors corresponds to the number of the sealing grooves.

[0013] Furthermore, a rotating groove for supporting the main shaft is provided at the bottom of the main shaft.

[0014] The beneficial effects of the embodiments of the present invention are as follows: The design of hydraulically adjusting the separating plates is adopted, making the separation process more flexible and efficient. At the same time, since the separating plates can move up and down, even if small particle impurities accumulate and block during the separation process, the problem can be solved by adjusting the position of the separating plates, avoiding the need for frequent cleaning and maintenance. The annular groove is provided with a plurality of grooves corresponding to the number of the separating plates and having a certain depth. The oil inlet of the oil groove is provided at the bottom of the annular groove. On the outer wall of the bottom shell, each annular groove corresponds to a connector, and the other end of the connector is connected to the hydraulic station. By separately controlling the oil supply pressure inside each annular groove through the hydraulic station, individual control is achieved, realizing efficient separation and flexible adjustment during the processing of maltodextrin solution, not only improving the production efficiency, but also reducing the frequency and cost of cleaning and maintenance, providing strong technical support for the production of maltodextrin. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 Another overall structural schematic diagram of the present invention from another perspective;

[0017] Figure 3 Internal structural schematic diagram of the separator body of the present invention;

[0018] Figure 4 Enlarged structural schematic diagram of point A of the present invention;

[0019] Figure 5 Structural schematic diagram of the separation plate and the main shaft of the present invention;

[0020] Figure 6 Another perspective structural schematic diagram of the separation plate and the main shaft of the present invention;

[0021] Figure 7 Partial top view structural schematic diagram of the main shaft and the separation plate of the present invention;

[0022] Figure 8 Structural schematic diagram of the connection between the connection seat and the separation plate of the present invention;

[0023] Figure 9 Internal structural schematic diagram of the connection seat of the present invention;

[0024] Figure 10 Internal structural schematic diagram of the auxiliary block of the present invention;

[0025] Figure 11 Front view structural schematic diagram of the auxiliary block of the present invention;

[0026] Figure 12 Partial connection structural schematic diagram of the oil groove and the connection seat of the present invention;

[0027] In the figure: 1, support frame; 101, gearbox; 2, separator body; 201, feed pipe; 202, discharge pipe; 3, main shaft; 301, discharge pump; 302, separation plate; 303, slag discharge port; 304, discharge port; 305, rotating groove; 4, bottom shell; 401, connection head; 5, connection seat; 501, moving block; 502, installation groove; 503, return spring; 6, auxiliary block; 601, clamping post; 602, gravity ball; 603, limiting spring; 604, discharge hole; 605, plug; 606, limiting post; 7, oil groove; 8, annular groove; 801, sealing ring. Specific embodiments

[0028] The following describes the preferred embodiments of the present invention with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principle of the present invention and are not intended to limit the protection scope of the present invention.

[0029] See Figures 1 to 12, an embodiment of the present invention discloses a separator for maltodextrin production, including a support frame 1 arranged on the production line. The support frame 1 is used to stably install and support the entire separator device. A gearbox 101 is arranged on the upper part of the support frame 1. The output end of the gearbox 101 is connected to the separator body 2 to provide power for the separator body 2. A motor is arranged on one side of the gearbox 101. By controlling the rotation speed inside the separator body through the gearbox 101, different control effects can be achieved, improving the use effect.

[0030] A main shaft 3 is arranged at the middle position of the separator body 2. The lower part of the main shaft 3 is connected to the gearbox 101 and rotates through the power transmitted by the gearbox 101. The outer shell of the separator body 2 is designed in a conical shape, which is beneficial to the separation and discharge of the maltodextrin solution. The inside of the main shaft 3 is hollow and is rotatably connected to the feed pipe 201 of the separator body 2. This design enables the maltodextrin solution to enter the inside of the main shaft 3 from the feed pipe 201. In order to ensure the sealing between the feed pipe 201 and the main shaft 3, a dynamic sealing device is arranged at the connection. At the lower part of the main shaft 3, in addition to the part connected to the gearbox 101, a discharge port 304 is also arranged. During use, the mixed liquid after pulping enters the inside of the separator body 2 from the discharge port 304, enters between the separation plates 302 through the holes on the separation plates 302 under the action of pressure, and achieves the separation effect under the action of centrifugal force. The connection between the outer shell and the base of the separator body 2 is set as an inclined surface. The separated impurities gather at the slag discharge port 303 at the bottom, and the slag discharge function is realized by intermittently opening the slag discharge port 303, which is used to discharge the impurities and the incompletely separated maltodextrin solution generated during the separation process to ensure the separation effect of the mixed liquid. A discharge pump 301 is arranged on the upper part of the main shaft 3, which is used to discharge the separated maltodextrin solution from the discharge pipe 202 at the upper part of the outer shell. The clean solution separated under the action of pressure and centrifugal force gathers upward, and is discharged from the separator body 2 under the action of the discharge pump 301. At the same time, in order to stabilize the rotation of the main shaft 3, a bearing is arranged above the discharge pump 301 to prevent interference during feeding and discharging and ensure the use effect.

[0031] In order to reduce the residual impurities between the separation sheets 302, a plurality of connecting seats 5 are provided on the side wall of the main shaft 3. The connecting seats 5 are distributed along the axial direction of the main shaft 3 and are used to install and support the separation sheets 302. Each separation sheet 302 uses at least two connecting seats 5 to ensure the installation stability of the separation sheet 302. The connecting seats 5 between the upper and lower layers are arranged in a staggered manner with an included angle therebetween to ensure the stability during the rotation of the main shaft 3. A movable block 501 that moves up and down is provided inside each connecting seat 5. The side wall of the movable block 501 is detachably connected to the separation sheet 302. When the separation sheet 302 is fixed and the main shaft 3 rotates, the maltodextrin solution is separated by the action of centrifugal force. When in use, the distance between the adjacent upper and lower separation sheets 302 is fixed. When discharging slag for cleaning or replacing the mixed liquid and it is necessary to adjust the distance between the two separation sheets 302, the moving frame is driven to move up and down by a driving device, and the distance between the two separation sheets 302 is changed by controlling different moving distances of the movable block 501, achieving the effect of being able to change the distance between the separation sheets 302 without disassembling the housing and reaching the usage purpose.

[0032] A driving device is provided at the bottom of the main shaft 3. The driving device operates in a hydraulic manner. To ensure the stable supply of hydraulic oil and the sealing effect, the bottom of the connecting seat 5 is connected to the mounting groove 502 provided on the side wall of the main shaft 3. During production and processing, first, the mounting groove 502 is formed on the side wall of the main shaft 3. And when the main shaft 3 is processed, a double-layer inner wall and outer wall are processed separately. Half of the oil groove 7 is processed on the inner wall, and the other half is processed on the outer wall. Then, the two pipe sleeves are sleeved together so that the two half parts of the oil groove 7 are fitted together to form a complete oil groove 7. A rubber layer can be cemented on the edge of the oil groove 7. After the oil groove 7 is aligned completely, cold welding is used to increase the connection points between the main shafts 3. During welding, a certain pressure is maintained, and a sealing effect is formed on both sides of the oil groove 7. The two ends of the main shaft 3 are welded and sealed to achieve the sealing effect of the oil groove 7, enabling the inside of the oil groove 7 to withstand a working pressure of 15 MPa. Processing the oil groove 7 separately reduces the processing difficulty. If the oil groove 7 is directly drilled inside the main shaft 3, it can be achieved, but the processing cycle is longer. Either of the two processing methods can be selected. The outlet of the oil groove 7 is arranged inside the mounting groove 502, and a sealing ring 801 is arranged at the outlet. An inlet matching the outlet of the oil groove 7 is arranged on the side wall or bottom surface of the connecting seat 5, so that the hydraulic oil can enter the inside of the connecting seat 5 through the oil groove 7. A sealing groove for sectional oil supply is provided at the lower part of the main shaft 3. The lower part of the main shaft 3 protrudes from the bottom of the gearbox 101. A bottom shell 4 is arranged outside the sealing groove. The bottom shell 4 is connected and fixed to the bottom of the gearbox 101 and provides a fulcrum for the rotation of the main shaft 3. A rotating groove 305 is provided at the bottom of the main shaft 3. The rotating groove 305 is a hemispherical groove. A ball is arranged inside the bottom shell 4, and the ball is stuck inside the rotating groove 305 to provide stable support for the main shaft 3, enabling the main shaft 3 to rotate smoothly. And the sealing groove includes an annular groove 8 provided at the lower part of the main shaft 3. The annular groove 8 is provided with a plurality of grooves corresponding to the number of separating plates 302 and having a certain depth. The oil inlet of the oil groove 7 is arranged at the bottom of the annular groove 8. Sealing rings 801 are arranged at the upper and lower parts of the annular groove 8 to prevent oil leakage between adjacent annular grooves 8. And a connection head 401 is correspondingly arranged on the outer wall of the bottom shell 4 for each annular groove 8. The other end of the connection head 401 is connected to the hydraulic station. The oil supply pressure inside each annular groove 8 is separately controlled through the hydraulic station to achieve separate control. Since at least two connecting seats 5 are provided, at least two oil grooves 7 of the same layer are connected inside each annular groove 8 to achieve equal control, prevent the separating plate 302 from generating a large-angle offset during movement, and achieve accurate control. The connecting seat 5 is installed inside the corresponding mounting groove 502. The bottom of the moving block 501 and the bottom of the connecting seat 5 form an oil cavity. The hydraulic oil enters the lower part of the moving block 501 through the oil groove 7, squeezing the moving block 501 upward. A sealing ring 801 is arranged on the side wall of the moving block 501 to gather the hydraulic oil at the lower part of the moving block 501.Above the moving block 501, a highly elastic reset spring 503 is provided, enabling the moving block 501 to reset after moving upward, realizing the up and down movement of the moving block 501. A limiting groove is provided on the side wall of the connecting seat 5, and the upper part of the separating piece 302 is connected to the side wall of the moving block 501 through the limiting groove. The connection method can adopt snap connection or bolt connection. During installation, the connection between the separating piece 302 and the moving block 501 is kept stable to meet the need of high-speed rotation and ensure the separation effect.

[0033] Since there are two connection points between the connection block of each layer and the separating piece 302, if three to four connecting seats 5 are set, there is not enough space inside the main shaft 3 to set the oil groove 7, and the structural strength of the main shaft 3 is also reduced. Therefore, an auxiliary groove is also provided at the position of the same height of the connecting seat 5. An auxiliary block 6 is arranged inside the auxiliary groove. Fixed holes are provided on the side wall of the auxiliary groove. A clamping column 601 matching the fixed hole is arranged inside the auxiliary block 6. Both ends of the clamping column 601 protrude from the top surface and the bottom surface of the auxiliary block 6. A cavity is arranged at the tail of the auxiliary block 6 for accommodating the clamping column 601. The middle positions of the clamping columns 601 are hinged together. The upper part and the bottom of the clamping column 601 are hinged to the inner wall of the cavity. A limiting spring 603 is arranged at the tail of the hinge point of the clamping column 601, and the limiting spring 603 provides elastic force to the right. During installation, the auxiliary block 6 is directly inserted into the auxiliary groove, and both ends of the clamping column 601 are clamped with the fixed hole. A gravity ball 602 is arranged at the hinge of the clamping column 601. When the main shaft 3 rotates, under the action of centrifugal force, the gravity ball 602 has a force towards the outside, making the clamping of the clamping column 601 and the fixed hole more stable and preventing the auxiliary block 6 from falling off. A discharge hole 604 is horizontally arranged on the left side of the auxiliary block 6. A plug 605 is arranged at the entrance of the discharge hole 604. When removing the auxiliary block 6, a tool is inserted from inside the discharge hole 604, and the hinge of the clamping column 601 is abutted to the left, compressing the limiting spring 603, so that both ends of the clamping column 601 are disengaged from the fixed hole, and the auxiliary block 6 is removed from the auxiliary groove. The side surface of the auxiliary block 6 has a small-angle inclined surface, and a limiting column 606 for clamping the separating piece 302 is arranged on the side surface. It is convenient for the auxiliary block 6 to be installed from top to bottom during use, and the width of the auxiliary block 6 is smaller than the width of the connecting seat 5, which is convenient for accurately positioning the notch on the separating piece 302 during installation, and the limiting column 606 can maintain the stability of the movement of the separating piece 302 during use. The hydraulic oil is connected to each layer of the connecting seat 5 through the oil groove 7 inside the main shaft 3, thereby controlling the up and down movement of the moving block 501, and further adjusting the position of the separating piece 302.

[0034] During use, the amount of hydraulic oil input through the hydraulic station can control the up-and-down movement distance of each separating plate 302, thereby adjusting the separation gap. When the mixed solution enters the separator body 2, it is separated into different components by the action of centrifugal force. Impurities and incompletely separated mixed liquid are discharged through the slag discharge port 303, while the pure solution is discharged through the discharge pump 301 and the discharge pipe 202. The design of using hydraulic pressure to adjust the separating plate 302 makes the separation process more flexible and efficient. At the same time, since the separating plate 302 can move up and down, even if small particle impurities accumulate and block during the separation process, the problem can be solved by adjusting the position of the separating plate 302, avoiding the need for frequent cleaning and maintenance. By controlling the up-and-down movement of the separating plate 302 through the hydraulic device, efficient separation and flexible adjustment during the processing of the maltodextrin solution are achieved, not only improving the production efficiency but also reducing the frequency and cost of cleaning and maintenance, providing strong technical support for the production of maltodextrin.

[0035] It should be noted that in the description of the present invention, the terms indicating directions or position relationships such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or position relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0036] In addition, it should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" 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 elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0037] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, so that a process, article, or device / equipment including a series of elements not only includes those elements but also includes other elements not explicitly listed, or also includes the elements inherent in these processes, articles, or devices / equipment.

[0038] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easily understood by those skilled in the art that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present invention.

Claims

1. A separator for maltodextrin production, comprising a support frame arranged on a production line, characterized in that: A gearbox is arranged on the upper part of the support frame, a separator body is arranged on the output end of the gearbox, a main shaft is arranged in the middle position of the separator body, a lower part of the main shaft is connected with the gearbox, a plurality of connecting seats are arranged on the side wall of the main shaft, a moving block which can move up and down is arranged inside the connecting seat, a separating sheet is arranged on the side wall of the moving block, and a driving device for controlling the moving distance of the moving block is arranged at the bottom of the main shaft.

2. The separator for maltodextrin production according to claim 1, characterized in that: The interior of the main shaft is hollow and is rotatably connected to the feed pipe of the separator body. A dynamic sealing device is provided at the connection between the feed pipe and the main shaft.

3. The separator for maltodextrin production according to claim 2, characterized in that: The separator body includes a conical outer shell arranged outside the separation sheet, a discharge pump for discharging material is arranged on the upper part of the main shaft, a bearing for stabilizing the main shaft is arranged above the discharge pump, and a discharge pipe is arranged on the upper part of the outer shell.

4. The separator for maltodextrin production according to claim 1, characterized in that: A discharge port is arranged at the lower part of the main shaft, and the discharge port is arranged on the side wall of the main shaft.

5. The separator for maltodextrin production according to claim 1, characterized in that: The bottom of the connecting seat is connected to a mounting groove arranged on the side wall of the main shaft, and the interior of the mounting groove is communicated with the driving device through an oil groove arranged inside the main shaft.

6. The separator for maltodextrin production according to claim 5, characterized in that: The driving device comprises a sealing groove arranged at the lower part of the main shaft, the number of the sealing grooves is the same as the number of the separation sheets, and the inlet of the oil groove is arranged inside the sealing groove.

7. The separator for maltodextrin production according to claim 6, characterized in that: The sealing groove comprises an annular groove arranged at the lower part of the main shaft, and sealing rings are arranged at the upper part and the lower part of the sealing groove.

8. The separator for maltodextrin production according to claim 6, characterized in that: A bottom shell is arranged outside the sealing groove, and a plurality of connectors are arranged on the outer wall of the bottom shell, and the number of the connectors corresponds to the number of the sealing grooves.

9. The separator for maltodextrin production according to claim 1, characterized in that: The bottom of the main shaft is provided with a rotation groove for supporting the main shaft.

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