Food-grade soybean protein powder special anti-blocking screw conveyor

Abstract

The present application relates to the technical field of food processing, and especially relates to a food-grade soybean protein powder special anti-blocking screw conveyor, which comprises a support, the support is fixedly connected with a pipeline, the pipeline is provided with a discharge port, the pipeline is fixedly connected and communicated with a storage hopper, the pipeline is rotationally provided with an auger, the support is fixedly connected with a first driving unit, the first driving unit is used for driving the rotation of the auger, the storage hopper is rotationally provided with a rotating shaft, the rotating shaft and the auger are connected through a belt wheel and a belt transmission, the rotating shaft is fixedly connected with a plurality of cylindrical rods, and all the cylindrical rods are located in the storage hopper. The soybean protein powder in the storage hopper is continuously stirred and broken through the rotation of the rotating shaft and the cylindrical rods, the powder agglomeration formed by moisture absorption or pressure is effectively broken, the large material directly entering the pipeline is prevented, the bridging and blocking phenomenon at the inlet of the pipeline are prevented, and the flowability and the conveying continuity of the material are significantly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of food processing, and particularly relates to a food-grade soybean protein powder special anti-blocking screw conveyor. BACKGROUND

[0002] Food-grade soybean protein powder is widely used in protein beverages, meal replacement foods, special medical use formula foods and other products due to its high protein content, excellent emulsifying and dissolving properties. In the production process, it often needs to be conveyed in a closed and continuous manner between processes such as drying, crushing, mixing and packaging through a screw conveyor. However, soybean protein powder has strong hygroscopicity and adhesion, and is easily affected by environmental humidity during storage or conveying, resulting in partial caking or agglomeration of the powder. In addition, during static storage, the powder will also be compacted and caked under the continuous action of its own gravity and external pressure, further exacerbating the deterioration of the flowability of the material.

[0003] When such caked material enters a conventional general-purpose screw conveyor, the problem is particularly prominent. Due to the large size, hard texture and high adhesion of the caked particles, they are easily stuck in the narrow gap between the screw and the conveying housing, hindering the normal rotation of the screw. As the conveying process continues, the unbroken lumps continue to accumulate, gradually forming a 'bridge' effect at the inlet or conveying section, resulting in a reduction in the material flow cross-section or even complete blockage. In severe cases, it can cause the screw to be stuck, the drive motor to be overloaded, and the equipment to be shut down urgently. SUMMARY

[0004] In order to overcome the problems presented in the background art, the present application provides a food-grade soybean protein powder special anti-blocking screw conveyor.

[0005] The technical solution of the present application is: a food-grade soybean protein powder special anti-blocking screw conveyor, comprising a support, the support is fixedly connected with a pipeline, the pipeline is provided with a discharge port, the pipeline is fixedly connected and communicated with a storage hopper, the pipeline is rotatably provided with an auger, the support is fixedly connected with a first driving unit, the first driving unit is used for driving the rotation of the auger, the storage hopper is rotatably provided with a rotating shaft, the rotating shaft and the auger are connected through a belt and pulley transmission, the rotating shaft is fixedly connected with a plurality of cylindrical rods, all the cylindrical rods are located in the storage hopper.

[0006] More preferably, a plurality of the cylindrical rods are spirally distributed on the rotating shaft.

[0007] More preferably, the auger is fixedly connected with a first spiral blade, the spiral direction of the first spiral blade is opposite to the spiral direction of the auger, and the first spiral blade is used for driving the material into the discharge port.

[0008] More preferably, a rotating shell is further included, the rotating shell is rotatably arranged on the pipeline, a second driving unit is fixedly connected to the support, the second driving unit is used for driving the rotating shell to rotate, the rotating shell is fixedly connected with a plurality of baffles which are distributed equidistantly in the circumferential direction, and all the baffles are located outside the auger.

[0009] More preferably, the output power of the first driving unit is different from the output power of the second driving unit, and the shear force is generated between the baffles and the auger.

[0010] More preferably, the outer sides of all the baffles are fixedly connected with a first rotating sleeve and a second rotating sleeve, and the first rotating sleeve and the second rotating sleeve are located inside the pipeline and rotate, and the first rotating sleeve is used for guiding the material to overturn.

[0011] More preferably, a plurality of second spiral blades are fixedly connected between two adjacent baffles, all the second spiral blades are located on the same spiral line, and the spiral direction of the second spiral blades is the same as the spiral direction of the auger.

[0012] More preferably, there is a gap between the second spiral blades and the auger.

[0013] More preferably, a fixed shell is further included, the fixed shell is fixedly connected to the storage hopper, the fixed shell is slidably arranged with a sliding push rod, the fixed shell and the sliding push rod are both provided with a circular hole, a one-way valve is fixedly connected in the circular hole of the fixed shell and the circular hole of the sliding push rod, a rotating disc is fixedly connected to the rotating shaft, the rotating disc is provided with a protruding column, the sliding push rod is provided with a horizontal groove, the protruding column of the rotating disc is located in the horizontal groove of the sliding push rod and slides, the pipeline is embedded with a guide pipe, the guide pipe is fixedly connected to the fixed shell and communicates with the fixed shell, the first rotating sleeve and the pipeline form an annular cavity which communicates with the guide pipe, a plurality of exhaust holes which are distributed equidistantly in the circumferential direction are arranged on the first rotating sleeve, and a one-way valve is fixedly connected in the exhaust hole.

[0014] More preferably, a plurality of the exhaust holes and a plurality of the baffles are staggered. Advantages

[0015] 1. The rotating shaft and the cylindrical rod are rotated to continuously stir and crush the soybean protein powder in the storage hopper, effectively break the powder agglomerates formed due to moisture absorption or pressure, prevent large materials from directly entering the pipeline, prevent the bridging and blocking phenomenon at the inlet of the guide pipe, and significantly improve the flowability and conveying continuity of the materials.

[0016] 2. By the speed difference between the baffle and the auger, controllable shear force is generated in the relative motion process, and the secondary crushing is carried out on the lumped powder still existing after entering the pipeline. The shear crushing mechanism acts on the middle section of the conveying process, cooperates with the front end stirring structure, forms a double anti-blocking guarantee system of "pre-crushing + re-crushing", and ensures the stability and continuity of material conveying;

[0017] 3. By the circumferential rotation of the first rotating sleeve and the baffle, the material in the pipeline is turned and loosened, the cohesion between the powder particles is broken, local hardening is avoided, the conveying resistance is effectively reduced, and the load of the main driving motor is reduced;

[0018] 4. By the reciprocating movement of the sliding push rod, compressed gas is continuously injected into the inside of the first rotating sleeve, the gas is uniformly released in the material gap, the cohesion between the particles is reduced, and the continuous and stable flow of the material in the conveying process is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a perspective structural schematic view of the present application.

[0020] Figure 2 It is a perspective structural schematic view of the pipeline and the storage hopper of the present application.

[0021] Figure 3 It is a perspective structural schematic view of the auger and the rotating shaft of the present application.

[0022] Figure 4 It is a perspective structural schematic view of the auger and the first rotating sleeve of the present application.

[0023] Figure 5 It is an exploded view of the auger and the first rotating sleeve of the present application.

[0024] Figure 6 It is a sectional view of the pipeline and the first rotating sleeve of the present application.

[0025] Figure 7 It is a sectional view of the fixed shell and the guide pipe of the present application.

[0026] In the drawing mark: 1- support, 2- pipeline, 201- discharge port, 3- storage hopper, 4- auger, 401- first spiral blade, 5- first driving unit, 6- rotating shaft, 7- cylindrical rod, 8- rotating shell, 9- second driving unit, 13- second spiral blade, 11- first rotating sleeve, 12- second rotating sleeve, 10- baffle, 14- fixed shell, 15- sliding push rod, 16- rotating disc, 17- guide pipe, 18- exhaust hole. DETAILED DESCRIPTION

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Example 1: A special anti-clogging screw conveyor for food-grade soybean protein powder, such as... Figures 1-3 As shown, the system includes a support 1, on which a control panel is mounted. A pipe 2 is fixedly connected to the support 1 (in the attached diagram, pipe 2 is in a horizontal position; to increase the material conveying height, pipe 2 can be adjusted to an inclined position). A discharge port 201 is provided on the right side of pipe 2. A storage hopper 3 is fixedly connected to and connected to the left side of the upper side of pipe 2. An auger 4 is rotatably installed inside pipe 2. A first drive unit 5 is fixedly connected to the support 1. The first drive unit 5 includes a motor, gearbox, pulley, and belt. The motor is electrically connected to the control panel. The first drive unit 5 is used to drive the auger 4 to rotate. A rotating mechanism is provided in the storage hopper 3. Shaft 6, the left side of shaft 6 and the left side of auger 4 are connected by pulley and belt drive. Six cylindrical rods 7 are fixed to the side wall of shaft 6 (this number is the number shown in the attached figure, and the actual number can be adjusted according to the requirements). All cylindrical rods 7 are located in the storage hopper 3. The six cylindrical rods 7 are spirally distributed on shaft 6. The right side of auger 4 is fixed with a first spiral blade 401. The spiral direction of the first spiral blade 401 is opposite to the spiral direction of auger 4. The first spiral blade 401 is used to drive the material into the discharge port 201 to reduce the material residue in the pipe 2.

[0029] The working process of the anti-clogging screw conveyor for food-grade soybean protein powder in this embodiment is as follows:

[0030] Soy protein powder is stored in the storage hopper 3. When it is necessary to transport the soybean protein powder, the operator starts the first drive unit 5 through the control panel. The first drive unit 5 drives the auger 4 and the first spiral blade 401 to rotate. The rotation of the auger 4 drives the soybean protein powder to move in the pipe 2 until the soybean protein powder is discharged from the discharge port 201 and falls into the corresponding container. The rotation of the first spiral blade 401 will drive the soybean protein powder into the discharge port 201, reducing the amount of soybean protein powder remaining in the pipe 2.

[0031] During the conveying of soybean protein powder, the auger 4 rotates, driving the shaft 6 and cylindrical rod 7 to rotate via pulleys and belts. The rotation of the cylindrical rod 7 agitates and breaks up the soybean protein powder in the storage hopper 3, effectively dispersing powder clumps formed due to moisture absorption or pressure, preventing large pieces of material from directly entering the pipeline 2, thereby ensuring the flowability and continuous conveying of soybean protein powder.

[0032] Embodiment 2: on the basis of embodiment 1, as shown in Figure 2 , Figure 4 and Figure 5 , further comprising a rotating shell 8 rotatably arranged in the left part of the pipeline 2, the support 1 is fixedly connected with a second driving unit 9, the second driving unit 9 comprises a motor, a gear box, a belt pulley and a belt, the motor is electrically connected with the control panel, the second driving unit 9 is used for driving the rotating shell 8 to rotate, the rotating shell 8 is fixedly connected with six equally spaced baffles 10, all the baffles 10 are located outside the auger 4; the output power of the first driving unit 5 is different from that of the second driving unit 9, which is used to generate shear force between the baffles 10 and the auger 4, wherein the output power of the first driving unit 5 and the output power of the second driving unit 9 can be adjusted by the control panel.

[0033] As shown in Figure 2 and Figures 4-6 , the outer sides of all the baffles 10 are fixedly connected with a first rotating sleeve 11 and a second rotating sleeve 12, the second rotating sleeve 12 is located to the right of the first rotating sleeve 11, and the first rotating sleeve 11 and the second rotating sleeve 12 are both located in the pipeline 2 and rotate sealingly, the first rotating sleeve 11 is used to guide the material to flip up and down, so that the conveyed material is loosened; a plurality of second spiral blades 13 are fixedly connected between adjacent two baffles 10, all the second spiral blades 13 are located on the same spiral line, and the spiral direction of the second spiral blades 13 is the same as that of the auger 4; there is a gap between the second spiral blades 13 and the auger 4.

[0034] The working process of this embodiment continues embodiment 1, and the detailed description is as follows:

[0035] In the process of conveying soybean protein powder, the control panel starts the first driving unit 5 and the second driving unit 9, wherein the first driving unit 5 works repeatedly to drive the auger 4 and the rotating shaft 6 to rotate as described above, and the second driving unit 9 works to drive the rotating shell 8, the six baffles 10, the first rotating sleeve 11, the second rotating sleeve 12 and all the second spiral blades 13 to rotate, because the conveying power of the first driving unit 5 and the second driving unit 9 is different, the rotating speed of the auger 4 and the six baffles 10 is different, and the relative rotation between the auger 4 and the six baffles 10 shears and breaks the soybean protein powder, preventing the soybean protein powder from being blocked in the pipeline 2, and further ensuring the flowability and conveying continuity of the soybean protein powder.

[0036] In the conveying process, the first rotating sleeve 11 and the six baffles 10 rotate to flip the soybean protein powder material located at the bottom thereof, so that the material below the first rotating sleeve 11 is flipped upward, and the second spiral blades 13 rotate to drive the soybean protein powder material, wherein the flipping of the soybean protein powder material breaks the cohesion between the soybean protein powder, avoids local hardening, and effectively reduces the conveying resistance.

[0037] Example 3: on the basis of example 2, as shown in Figure 2 and Figure 7 The fixed shell 14 is fixed to the right side of the storage hopper 3, the upper part of the fixed shell 14 is provided with a sliding push rod 15, the fixed shell 14 and the sliding push rod 15 are both provided with four circular holes distributed equidistantly in the circumference, a one-way valve is fixed in each of the four circular holes of the fixed shell 14 and the four circular holes of the sliding push rod 15, the one-way valve on the fixed shell 14 is used for gas to enter from the outside, the one-way valve on the sliding push rod 15 is used for gas to flow from top to bottom, the right part of the rotating shaft 6 is fixed with a rotating disc 16, the right side of the rotating disc 16 is provided with a convex column, the upper part of the sliding push rod 15 is provided with a horizontal groove, the convex column of the rotating disc 16 slides in the horizontal groove of the sliding push rod 15, the upper part of the pipe 2 is embedded with a guide pipe 17, the guide pipe 17 is fixed and communicated with the lower part of the fixed shell 14, the first rotating sleeve 11 and the pipe 2 form five annular cavities distributed equidistantly, the guide pipe 17 is communicated with the five annular cavities respectively, the first rotating sleeve 11 is provided with five groups of exhaust holes 18, each group of exhaust holes 18 includes six exhaust holes distributed equidistantly in the circumference, a one-way valve is fixed in each of the exhaust holes 18; the plurality of exhaust holes 18 and the plurality of baffles 10 are staggered.

[0038] The working process of the embodiment is continued from example 2, and the detailed description is as follows:

[0039] During the conveying of soybean protein powder, the rotating shaft 6 drives the rotating disc 16 to rotate, the rotating disc 16 drives the sliding push rod 15 to move up and down in the fixed shell 14, and the gas is injected into the guide pipe 17 step by step under the limiting action of the one-way valves on the fixed shell 14 and the sliding push rod 15, the gas accumulates in the annular cavities formed by the pipe 2 and the first rotating sleeve 11, then the high-pressure gas extrudes the one-way valves on the first rotating sleeve 11, so that the gas passes through the exhaust holes 18, and the gas is uniformly released in the gaps of the soybean protein powder in the first rotating sleeve 11, thereby reducing the cohesion between the particles, and ensuring the continuous and stable flow of the material during the conveying process.

[0040] The above shows and describes the basic principles, main features and advantages of the present application. It should be understood by those skilled in the art that the present application is not limited to the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application.

Claims

1. A food-grade soy protein powder dedicated anti-blocking screw conveyor, characterized in that, The utility model provides a kind of material conveying device, including support (1), the support (1) is fixed with pipeline (2), the pipeline (2) is opened with discharge port (201), the pipeline (2) is fixed and communicated with storage hopper (3), the pipeline (2) is rotatably provided with auger (4), the support (1) is fixed with first drive unit (5), and the first drive unit (5) is used to drive the rotation of the auger (4), the storage hopper (3) is rotatably provided with rotating shaft (6), the rotating shaft (6) and the auger (4) are connected by pulley and belt drive, the rotating shaft (6) is fixed with multiple cylindrical rods (7), and all the cylindrical rods (7) are located in the storage hopper (3); Further including rotating shell (8), the rotating shell (8) is rotatably provided on the pipeline (2), the support (1) is fixed with second drive unit (9), and the second drive unit (9) is used to drive the rotation of the rotating shell (8), the rotating shell (8) is fixed with multiple baffle plates (10) that are distributed equidistantly in circumference, and all the baffle plates (10) are located on the outside of the auger (4); The output power of the first drive unit (5) is different from the output power of the second drive unit (9), for generating shear force between the baffle plate (10) and the auger (4); The outside of all the baffle plates (10) is commonly fixed with first rotating sleeve (11) and second rotating sleeve (12), and the first rotating sleeve (11) and the second rotating sleeve (12) are rotatable in the pipeline (2), and the first rotating sleeve (11) is used to guide material to overturn; Multiple second spiral blades (13) are fixed between adjacent two baffle plates (10), all the second spiral blades (13) are located on the same spiral line, and the spiral direction of the second spiral blade (13) is the same as the spiral direction of the auger (4); The auger (4) is fixed with first spiral blade (401), the spiral direction of the first spiral blade (401) is opposite to the spiral direction of the auger (4), and the first spiral blade (401) is used to drive material into the discharge port (201); There is a gap between the second spiral blade (13) and the auger (4); Also include fixed shell (14), the fixed shell (14) is fixedly connected to the storage hopper (3), the fixed shell (14) is provided with sliding push rod (15), the fixed shell (14) and the sliding push rod (15) are all opened with round hole, the round hole in the fixed shell (14) and the round hole in the sliding push rod (15) are all fixedly connected with one-way valve, the rotating shaft (6) is fixedly connected with rotating disc (16), the rotating disc (16) is provided with convex column, the sliding push rod (15) is provided with horizontal slot, the convex column of the rotating disc (16) is located in the horizontal slot of the sliding push rod (15) and slides, the pipeline (2) is embedded with guide pipe (17), the guide pipe (17) is fixedly connected with the fixed shell (14) and is communicated, the first rotating sleeve (11) and the pipeline (2) enclose annular cavity communicated with the guide pipe (17), the first rotating sleeve (11) is opened with multiple exhaust holes (18) that are distributed equidistantly in circumference, the exhaust hole (18) is fixedly connected with one-way valve.

2. The anti-blocking screw conveyor for food-grade soy protein powder according to claim 1, characterized in that, Multiple the cylindrical rod (7) is distributed spirally on the rotating shaft (6).

3. The anti-blocking screw conveyor for food-grade soy protein powder according to claim 1, characterized in that, Multiple the exhaust hole (18) and multiple the baffle (10) are staggered distribution.

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