A soybean flash evaporation device

Abstract

This invention relates to the field of soybean protein isolate production technology, solving the technical problem that existing soybean flash evaporation devices are prone to moisture absorption at the discharge pipe, causing material to stick to the inner wall of the discharge pipe, easily contaminating the product and affecting product quality. Specifically, it relates to a soybean flash evaporation device, including a base, a drying cylinder and a fan mounted on the base, a separation cylinder fixed to the outside of the drying cylinder, and a heating pipe and a feed pipe connected to the side of the drying cylinder. A conveying pipe connects the separation cylinder and the drying cylinder, and a discharge pipe is connected to the lower end of the separation cylinder. A cyclone separator and a scraping mechanism to prevent adhesion between the separation cylinder and the inner wall of the discharge pipe are mounted on the discharge pipe. A vibration mechanism is mounted on the outside of the discharge pipe, and a stirring mechanism is installed inside the drying cylinder, with a blocking mechanism mounted on the stirring mechanism. This invention can scrape and vibrate the inner wall of the discharge pipe simultaneously with the discharge, effectively preventing adhesion and clumping in the discharge pipe and ensuring product quality.

Description

Technical Field

[0001] This invention relates to the field of soybean protein isolate production technology, and in particular to a soybean flash evaporation device. Background Technology

[0002] Soy protein powder production requires the use of flash dryers for drying. Flash dryers are a new type of continuous drying equipment that integrates drying, crushing, and screening. They are particularly suitable for drying filter cake, paste, and slurry materials.

[0003] Soybean flash drying equipment is a highly efficient drying device that can dry soybean protein in a short time while preserving its original nutrients and flavor. However, in existing soybean flash drying equipment, the discharge port of the discharge pipe is in contact with the outside environment. Over time, the discharge pipe inevitably becomes damp. As a result, when the finished product is discharged through the discharge pipe, the material sticks to the inner wall of the discharge pipe due to the moisture, affecting the discharge efficiency and speed. Furthermore, if the sticky and clump of material is not cleaned up in time, it can easily contaminate the subsequent finished products and affect product quality. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a soybean flash evaporation device that solves the technical problem that existing soybean flash evaporation devices are prone to moisture absorption at the discharge pipe, causing material to stick to the inner wall of the discharge pipe, which easily contaminates the product and affects product quality. This invention achieves the purpose of scraping the inner wall of the discharge pipe while discharging the material.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a soybean flash evaporation device, comprising a base, on which a drying cylinder for flash evaporating soybean protein and an exhaust fan are installed. A separation cylinder is fixed to the outside of the drying cylinder, and a heating pipe and a feeding pipe are connected to the side of the drying cylinder. A conveying pipe is connected between the separation cylinder and the drying cylinder, and a discharge pipe is connected to the lower end of the separation cylinder. A cyclone separator and a scraping mechanism to prevent the separation cylinder from sticking to the inner wall of the discharge pipe are installed on the discharge pipe, and a vibration mechanism to facilitate discharge is installed on the outside of the discharge pipe. A stirring mechanism for accelerating the drying of soybean protein is installed inside the drying cylinder, and a blocking mechanism for preventing the conveying pipe from being blocked is installed on the stirring mechanism.

[0006] The scraping mechanism includes a rotating rod rotatably connected inside the separation cylinder. A scraper is fixed on the rotating rod to prevent material from sticking to the inner wall of the separation cylinder. A rectangular groove is opened on the lower end face of the rotating rod. A rectangular rod is slidably connected in the rectangular groove. A scraper ring adapted to the discharge pipe is fixed on the rectangular rod. A U-shaped frame is fixed at the lower end of the rectangular rod. Ball bearings are fixed at both ends of the U-shaped frame. A wavy annular groove is opened on the discharge pipe. The ball bearings are slidably connected in the annular groove. A motor for driving the rotating rod to rotate is installed on the separation cylinder.

[0007] Furthermore, the vibration mechanism includes a rotating shaft rotatably connected to the base, a crossbar fitted on the rotating shaft, a pull rod rotatably connected to the crossbar, a vibration block fixed to the other end of the pull rod, and a sleeve fixed to the discharge pipe slidably connected to the outside of the pull rod. A spring is provided inside the sleeve and is fixedly connected to the vibration block.

[0008] Furthermore, the lower sleeve of the rotating shaft has an L-shaped stop bar, and the outer side of the U-shaped frame is fixed with a lever that works in conjunction with the stop bar.

[0009] Furthermore, the stirring mechanism includes a stirring shaft rotatably connected inside the drying cylinder, a plurality of stirring rods are mounted on the stirring shaft, and a second motor for driving the stirring shaft to rotate is installed on the drying cylinder.

[0010] Furthermore, the barrier mechanism includes a limiting cylinder fixed to the top of the drying cylinder, and a movable cylinder slidably connected to the stirring shaft inside the limiting cylinder. A barrier plate slidably connected to the drying cylinder is fixed at the lower end of the movable cylinder, and a plurality of filter holes are provided on the barrier plate.

[0011] Furthermore, a cylinder is fixed on the stirring shaft, and two symmetrically arranged threaded strips are fixed on the outer side of the cylinder. Each threaded strip is equipped with a roller, which is rotatably connected to the inner wall of the moving cylinder. A spring is installed between the moving cylinder and the limiting cylinder.

[0012] Furthermore, an exhaust pipe is connected between the fan and the separator, and an air outlet pipe is connected to the fan's outlet.

[0013] By employing the above technical solution, the present invention provides a soybean flash evaporation device, which has at least the following beneficial effects:

[0014] 1. Due to the scraping mechanism, the present invention rotates the scraper and rectangular rod during discharge. The scraper can scrape the inner wall of the separation cylinder to prevent the material from adhering to it for a long time and causing adhesion. The rotation of the rectangular rod can cause the U-shaped frame to drive the scraper ring, which moves up and down along the inner wall of the discharge pipe to scrape while rotating. This effectively prevents the inner wall of the discharge from getting damp and sticking together, thus ensuring the product quality of the material.

[0015] 2. Due to the setting of the vibration mechanism, the stop bar is driven to rotate by the lever, and the crossbar can drive the pull bar to move outward. When the U-shaped frame moves up, the stop bar loses the driving force of the lever and is reset by the action of the spring. Thus, the vibrating block can produce a knocking action on the discharge pipe, and the outside of the discharge pipe can produce a vibration effect, which facilitates the discharge and at the same time prevents the separation cylinder and the inner wall of the discharge pipe from adhering to the material.

[0016] 2. Due to the setting of the barrier mechanism, the cylinder is driven to rotate by the stirring shaft, and the moving cylinder can move up and down back and forth, so that the barrier plate can move up and down along the inner wall of the drying cylinder. The undried material on the inner wall of the drying cylinder can be scraped off and dried again. The barrier plate can prevent large and wet materials in the drying cylinder from entering the conveying pipe, ensuring the normal use of the conveying pipe. Attached Figure Description

[0017] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0018] In the attached diagram:

[0019] Figure 1 This is a three-dimensional schematic diagram of the soybean flash evaporation device of the present invention;

[0020] Figure 2 This is a schematic diagram of the scraping mechanism during the cutting of the discharge pipe in this invention;

[0021] Figure 3 This is a cross-sectional view of the rotating rod in this invention;

[0022] Figure 4 This is a schematic diagram of the vibration mechanism in this invention;

[0023] Figure 5 This is a schematic diagram showing the connection between the stirring mechanism and the barrier mechanism during the cutting of the drying cylinder in this invention;

[0024] Figure 6 This is a schematic diagram of the barrier mechanism in this invention.

[0025] In the diagram: 1. Base; 2. Drying cylinder; 21. Heating pipe; 22. Feed pipe; 3. Fan; 4. Separation cylinder; 5. Discharge pipe; 6. Scraping mechanism; 61. Rotating rod; 62. Scraper rod; 63. Rectangular rod; 64. Scraper ring; 65. U-shaped frame; 66. Ball bearing; 67. Ring groove; 68. Motor 1; 7. Vibration mechanism; 71. Rotating shaft; 72. Crossbar; 73. Pull rod; 74. Vibrating block; 75. Sleeve; 76. Spring 1; 77. Stop bar; 78. Pulley; 8. Stirring mechanism; 81. Stirring shaft; 82. Stirring rod; 83. Motor 2; 9. Barrier mechanism; 91. Limiting cylinder; 92. Moving cylinder; 93. Barrier plate; 94. Cylinder; 95. Roller; 96. Spring 2. Detailed Implementation

[0026] 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.

[0027] Example 1

[0028] Figures 1-6 An embodiment of the present invention: a soybean flash evaporation device includes a base 1, on which a drying cylinder 2 for flash evaporating soybean protein and an exhaust fan 3 are mounted. A separation cylinder 4 is fixed to the outside of the drying cylinder 2, and a heating pipe 21 and a feeding pipe 22 are connected to the side of the drying cylinder 2. A conveying pipe is connected between the separation cylinder 4 and the drying cylinder 2, and a discharge pipe 5 is connected to the lower end of the separation cylinder 4. A cyclone separator and a scraping mechanism 6 to prevent the separation cylinder 4 from sticking to the inner wall of the discharge pipe 5 are installed on the discharge pipe 5. A vibration mechanism 7 to facilitate discharge is installed on the outside of the discharge pipe 5. A stirring mechanism 8 for accelerating the drying of soybean protein is installed inside the drying cylinder 2. A blocking mechanism 9 for preventing the conveying pipe from being blocked is installed on the stirring mechanism 8. An exhaust pipe is connected between the fan 3 and the separation cylinder 4, and an air outlet pipe is connected to the air outlet of the fan 3. The scraping mechanism 6 can simultaneously scrape the inner walls of the separation cylinder 4 and the discharge pipe 5 during discharge, preventing the discharge pipe 5 from getting damp and sticking, thus ensuring product quality. The lever 78 intermittently drives the rotating shaft 71 of the vibration mechanism 7 to rotate, which can generate a vibration effect in the discharge pipe 5, facilitating discharge while preventing materials from adhering to the inside of the discharge pipe 5. The blocking mechanism 9 can prevent larger and wetter materials from entering the conveying pipe and can also scrape off the materials adhering to the upper part of the inner wall of the drying cylinder 2.

[0029] The scraping mechanism 6 includes a rotating rod 61 rotatably connected inside the separation cylinder 4. A scraper 62 is fixed on the rotating rod 61 to prevent material from sticking to the inner wall of the separation cylinder 4. A rectangular groove is opened on the lower end face of the rotating rod 61. A rectangular rod 63 is slidably connected in the rectangular groove. A scraper ring 64 adapted to the discharge pipe 5 is fixed on the rectangular rod 63. A U-shaped frame 65 is fixed at the lower end of the rectangular rod 63. Ball bearings 66 are fixed at both ends of the U-shaped frame 65. A wavy annular groove 67 is opened on the discharge pipe 5. The ball bearings 66 are slidably connected in the annular groove 67. A motor 68 that drives the rotating rod 61 to rotate is installed on the separation cylinder 4. After drying, the material is carried from the drying cylinder 2 into the separation cylinder 4 by a cyclone separator. During discharge, the rotating rod 61 is driven by motor 68 to rotate, which in turn drives the scraper 62 to rotate against the inner wall of the separation cylinder 4, preventing the material from sticking and accumulating on the inner wall of the separation cylinder 4. During discharge, the rotating rod 61 simultaneously drives the rectangular rod 63 and the U-shaped frame 65 to rotate. The ball bearings 66 on the U-shaped frame 65 rotate along the annular groove 67, rotating from the lowest point of the annular groove 67 to the highest point of the annular groove 67. This allows the rectangular rod 63 to move up and down intermittently along the rectangular groove during rotation, so that the scraper ring 64 in the discharge pipe 5 can move up and down intermittently while adhering to the discharge pipe 5 during rotation, effectively preventing the material from sticking to the inner wall of the discharge pipe 5 and ensuring product quality.

[0030] Example 2

[0031] Based on Example 1, Figures 2-4 As shown, the vibration mechanism 7 includes a rotating shaft 71 rotatably connected to the base 1, a crossbar 72 mounted on the rotating shaft 71, a pull rod 73 rotatably connected to the crossbar 72, a vibrating block 74 fixed to the other end of the pull rod 73, and a sleeve 75 fixed to the discharge pipe 5 slidably connected to the outside of the pull rod 73. A spring 76 is provided inside the sleeve 75, and the spring 76 is fixedly connected to the vibrating block 74. An L-shaped stop bar 77 is sleeved on the lower side of the rotating shaft 71, and levers 78 that cooperate with the stop bar 77 are fixed on the outside of the U-shaped frame 65. Whenever the U-shaped frame 65 rotates to the bottom, the lever 78 drives the stop bar 77 on the rotating shaft 71 to rotate, thereby driving the crossbar 72 on the rotating shaft 71 to rotate and pull out the pull rod 73. When the U-shaped frame 65 rotates to the top, the rotating shaft 71 loses its driving force. Under the action of the elastic force of the spring 76, the pull rod 73 is reset, so that the vibrating block 74 hits the outer wall of the discharge pipe 5, which in turn makes the discharge pipe 5 vibrate, which facilitates the discharge and prevents the material from adhering to the discharge pipe 5.

[0032] Example 3

[0033] Based on Example 1, Figures 5-6As shown, the barrier mechanism 9 includes a limiting cylinder 91 fixed to the top of the drying cylinder 2, and a movable cylinder 92 slidably connected to the stirring shaft 81 inside the limiting cylinder 91. A barrier plate 93 slidably connected to the drying cylinder 2 is fixed at the lower end of the movable cylinder 92. Several filter holes are opened on the barrier plate 93. A cylinder 94 is fixed on the stirring shaft 81. Two symmetrically arranged threaded strips are fixed on the outside of the cylinder 94. Rollers 95 are provided on the threaded strips. The rollers 95 are rotatably connected to the inner wall of the movable cylinder 92. A spring 96 is installed between the movable cylinder 92 and the limiting cylinder 91. The movable cylinder 92 and the limiting cylinder 91 are rectangular in shape, and a circular groove is opened inside the movable cylinder 92. The stirring shaft 81 is driven by motor 83 to rotate, which in turn drives the cylinder 94 to rotate. This causes the roller 95 on the moving cylinder 92 to move up and down along the threaded strip on the cylinder 94, allowing the baffle plate 93 to move up and down along the inner wall of the drying cylinder 2, scraping the inner wall of the drying cylinder 2. When the roller 95 moves the moving cylinder 92 to the top of the threaded strip, the moving cylinder 92 then compresses the spring 96. When the cylinder 94 rotates, the roller 95 moves from the turning point at the highest point of the threaded strip to the lowest point of the threaded strip. Through the elastic force of the spring 96, the moving cylinder 92 can be quickly pushed down, which can have a vibration effect on the baffle plate 93, thus preventing the baffle plate 93 from clogging. In this mechanism, the baffle plate 93 can prevent large and wet materials from entering the conveying pipe in the drying cylinder, and can also scrape off the material adhering to the upper part of the inner wall of the drying cylinder 2 for further drying.

[0034] In this embodiment, the stirring mechanism 8 includes a stirring shaft 81 rotatably connected inside the drying cylinder 2. Multiple stirring rods 82 are mounted on the stirring shaft 81, and a second motor 83 is installed on the drying cylinder 2 to drive the stirring shaft 81 to rotate. During drying, the stirring shaft 81 is driven to rotate by the second motor 83, and the stirring rods 82 cause the material inside the drying cylinder 2 to continuously collide. Through the heating effect in the heating pipe 21, the material is subjected to centrifugal force, shearing, collision, and friction, thus being micronized, which accelerates the drying process.

[0035] As shown in the embodiment, when the device is in use, material is fed into the drying cylinder 2 through the feed pipe 22, and then the material in the drying cylinder 2 is heated and dried through the heating pipe 21. At the same time, motor 68 and motor 83 are started, and the stirring rod 82 rotates to stir the material in the drying cylinder 2. The hot air generates strong shearing, blowing, and rotational effects on the material, so the material is micronized by centrifugal force, shearing, collision, and friction, which enhances mass and heat transfer. Smaller particles are carried upward by the cyclone and further dried during the upward process. The larger, undried particles fall back to the bottom of the drying cylinder 2 for re-drying by the baffle plate 93. The dried fine particles are sucked into the separation cylinder 4 by the cyclone separator and discharged through the discharge pipe 5. The rotating rod 61 is driven to rotate by motor 68, and the scraper 62 can stir the separation cylinder 4. The inner wall is scraped to prevent material adhesion, and the rotating rod 61 simultaneously drives the rectangular rod 63 to rotate, causing the ball bearings 66 on the U-shaped frame 65 to rotate along the annular groove 67. This causes the scraping ring 64 on the U-shaped frame 65 to rotate and move intermittently up and down along the inner wall of the discharge pipe 5, effectively preventing the inner wall of the discharge pipe from getting damp and causing adhesion and clumping, thus ensuring the product quality of the material. During the intermittent rotation and up and down movement of the U-shaped frame 65, when the U-shaped frame 65 moves to the lower position, the lever 78 drives the stop rod 77 to rotate, so that the crossbar 72 can drive the pull rod 73 to move outward. When the U-shaped frame 65 moves upward, the stop rod 77 loses its driving force and resets under the action of the spring 76. Thus, the vibrating block 74 can produce a knocking action on the discharge pipe 5, thereby generating a vibration effect in the discharge pipe 5, which facilitates material discharge and also prevents material from adhering to the inner wall of the separation cylinder 4 and the discharge pipe 5.

[0036] The control method of this invention is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, since this invention is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail here.

[0037] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A soybean flash evaporation device, comprising a base (1), characterized in that: The base (1) is equipped with a drying cylinder (2) for flash evaporation of soybean protein and an exhaust fan (3). A separation cylinder (4) is fixed to the outside of the drying cylinder (2), and a heating pipe (21) and a feed pipe (22) are connected to the side of the drying cylinder (2). A conveying pipe is connected between the separation cylinder (4) and the drying cylinder (2), and a discharge pipe (5) is connected to the lower end of the separation cylinder (4). A cyclone separator and a scraping mechanism (6) to prevent the separation cylinder (4) from sticking to the inner wall of the discharge pipe (5) are installed on the discharge pipe (5). A vibration mechanism (7) to facilitate discharge is installed on the outside of the discharge pipe (5). A stirring mechanism (8) to accelerate the drying of soybean protein is installed inside the drying cylinder (2), and a blocking mechanism (9) to prevent the conveying pipe from being blocked is installed on the stirring mechanism (8). The scraping mechanism (6) includes a rotating rod (61) rotatably connected inside the separation cylinder (4), a scraper (62) fixed on the rotating rod (61) to prevent material from sticking to the inner wall of the separation cylinder (4), and a rectangular groove is opened on the lower end face of the rotating rod (61). A rectangular rod (63) is slidably connected inside the rectangular groove. A scraper ring (64) adapted to the discharge pipe (5) is fixed on the rectangular rod (63). A U-shaped frame (65) is fixed at the lower end of the rectangular rod (63). Ball bearings (66) are fixed at both ends of the U-shaped frame (65). A wave-shaped annular groove (67) is opened on the discharge pipe (5). The ball bearings (66) are slidably connected inside the annular groove (67). A motor (68) for driving the rotating rod (61) to rotate is installed on the separation cylinder (4). The stirring mechanism (8) includes a stirring shaft (81) rotatably connected inside the drying cylinder (2), and multiple stirring rods (82) are mounted on the stirring shaft (81). The drying cylinder (2) is equipped with a second motor (83) that drives the stirring shaft (81) to rotate. The barrier mechanism (9) includes a limiting cylinder (91) fixed to the top of the drying cylinder (2), and a movable cylinder (92) slidably connected to the stirring shaft (81) is slidably connected inside the limiting cylinder (91). A barrier plate (93) slidably connected to the drying cylinder (2) is fixed at the lower end of the movable cylinder (92). Several filter holes are opened on the barrier plate (93). A cylinder (94) is fixed on the stirring shaft (81). Two symmetrically arranged threaded strips are fixed on the outside of the cylinder (94). Rollers (95) are provided on the threaded strips. The rollers (95) are rotatably connected to the inner wall of the movable cylinder (92). A second spring (96) is installed between the movable cylinder (92) and the limiting cylinder (91).

2. The soybean flash evaporation device according to claim 1, characterized in that: The vibration mechanism (7) includes a rotating shaft (71) rotatably connected to the base (1), a crossbar (72) is fitted on the rotating shaft (71), a pull rod (73) is rotatably connected to the crossbar (72), a vibration block (74) is fixed at the other end of the pull rod (73), and a sleeve (75) fixed on the discharge pipe (5) is slidably connected to the outside of the pull rod (73). A spring (76) is provided inside the sleeve (75), and the spring (76) is fixedly connected to the vibration block (74).

3. The soybean flash evaporation device according to claim 2, characterized in that: The lower side of the rotating shaft (71) is fitted with an L-shaped stop bar (77), and the outer side of the U-shaped frame (65) is fixed with a lever (78) that works in conjunction with the stop bar (77).

4. The soybean flash evaporation device according to claim 1, characterized in that: An exhaust pipe is connected between the blower (3) and the separator (4), and an air outlet pipe is connected to the air outlet of the blower (3).

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