Extraction tank for extracting pectin from straw

Abstract

The invention discloses an extraction tank for extracting pectin from straw, and belongs to the technical field of pectin extraction.The extraction tank specifically comprises a tank body, a mounting frame is fixedly connected into the tank body, and a stirring mechanism is arranged on the mounting frame; a heating mechanism is arranged on the tank body; in the process that the driving frame drives the multiple stirring shafts to rotate in the tank body, the stirring shafts drive the top propelling paddle, the middle shearing paddle and the bottom propelling paddle to rotate at the same time, so that the material stirring efficiency is greatly improved, the problem of dead angles during material stirring is avoided, and the dissolution efficiency of pectin is improved; through the outer jacket, the outer heating pipeline, the central column and the inner heating pipeline, the problem that the edge of a traditional material is hot and the center of the traditional material is cold is solved, the material can be uniformly heated, and the stability of pectin is improved.

Description

Technical Field

[0001] This invention belongs to the field of pectin extraction technology, specifically relating to an extraction tank for extracting pectin from straw. Background Technology

[0002] The process of extracting pectin from straw involves using agricultural waste straw (such as corn straw, wheat straw, etc.) to separate and purify it through a series of physical, chemical, or biological methods. In the pectin extraction process, the extraction tank is the core equipment used to react the raw material (pretreated straw) with the extraction agent (acid solution, enzyme solution, etc.) to achieve pectin dissolution.

[0003] Chinese utility model patent application number 201821517119.6 is disclosed in the prior art. This patent discloses a reaction vessel for pectin extraction, including a tank body and a cover plate disposed on the top of the tank body. A motor is disposed in the middle of the upper surface of the cover plate, and a feed hopper is embedded in the side of the cover plate corresponding to the motor. The output end of the motor is fixedly connected to a rotating shaft, which passes through the cover plate and extends into the tank body. The surface of the rotating shaft is provided with spiral blades. Stirring rods are disposed at both ends of the bottom of the rotating shaft by fixing members. Each stirring rod is provided with a scraper at its top end, and the scraper is uniformly provided with through holes. A filter screen is disposed in the tank body below the rotating shaft, and a discharge port is disposed on the right side of the tank body below the filter screen. This utility model has a simple structure and is practical and convenient. By setting up a heating tank, stirring rods, and scrapers, it solves the problems of long reaction time and inconvenience of use in existing pectin reaction vessels.

[0004] The existing technology has the following shortcomings: 1. There are "dead zones" in the stirring of materials, which can easily lead to uneven concentration of extractant in some areas and affect the pectin dissolution efficiency; 2. There are uneven heating problems in the heating of materials, which affect the stability of pectin. Therefore, an extraction tank for extracting pectin from straw is provided to solve the above technical problems. Summary of the Invention

[0005] To address the problems mentioned in the background section, this invention provides an extraction tank for extracting pectin from straw, which not only improves the stirring effect and pectin dissolution efficiency of the material, but also enhances the heating effect and pectin stability.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an extraction tank for extracting pectin from straw, comprising a tank body, a mounting frame fixedly connected inside the tank body, and a stirring mechanism mounted on the mounting frame; the stirring mechanism includes a drive frame rotatably connected to the mounting frame, a central column disposed below the drive frame, and multiple stirring shafts rotatably connected to the drive frame, wherein a top propeller, a middle shearing blade, and a bottom propeller are sequentially fixedly connected to the stirring shafts; The tank is equipped with a heating mechanism, which includes an outer jacket, an outer heating pipe, and an inner heating pipe. The outer jacket is fixedly connected to the outside of the tank, and the outer heating pipe, which is in contact with the outer wall of the tank, is fixedly connected inside the outer jacket. The inner heating pipe is fixedly connected to the outside of the central column.

[0007] Preferably, a feed hopper is fixedly connected to the top of the tank, and the other end of the feed hopper extends into the tank and is located below the mounting frame.

[0008] Preferably, a discharge hopper is fixedly connected to the bottom of the tank, and a discharge valve is provided inside the discharge hopper.

[0009] Preferably, a first motor is fixedly connected to the top of the tank, and a drive shaft extending into the drive frame is fixedly connected to the output shaft of the first motor. The drive shaft is driven by a stirring shaft on the drive frame. A second motor is also fixedly connected to the top of the tank, and the output shaft of the second motor is driven by a drive frame.

[0010] Preferably, a support frame is fixedly connected to the bottom of the central column, the other end of the support frame is fixedly connected to the inner wall of the tank, and the top of the support frame is rotatably connected to the drive frame.

[0011] Preferably, a limiting sleeve is fixedly connected to the outer side of the central column, a rotating sleeve is rotatably connected to the limiting sleeve, a reinforcing rod corresponding to the stirring shaft is fixedly connected to the outer side of the rotating sleeve, and the other end of the reinforcing rod is rotatably connected to the stirring shaft.

[0012] Preferably, it also includes an anti-settling mechanism, which includes a drive shaft and a propeller. The drive shaft is rotatably connected to the bottom of the central column, and the propeller is fixedly connected to the drive shaft. The other end of the drive shaft passes through the central column and the drive frame and is fixedly connected to the drive shaft.

[0013] Preferably, both the external heating pipe and the internal heating pipe have a spiral structure, and the inlet and outlet ends of the external heating pipe and the internal heating pipe extend to the outside of the outer jacket.

[0014] Preferably, it also includes a hot water supply mechanism, wherein the hot water supply equipment includes a water storage tank, a heater is fixedly connected inside the water storage tank, and a water inlet pipe, a drain pipe and a recovery pipe are provided on the water storage tank. The outlet end of the drain pipe is connected to the inlet end of the water supply pump, and the outlet end of the water supply pump is connected to the inlet ends of the external heating pipe and the internal heating pipe respectively through a three-way valve. The recovery pipe is connected to the outlet ends of the external heating pipe and the internal heating pipe respectively through a three-way valve.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, multiple stirring shafts are driven by a drive frame to rotate within the tank. During this process, the stirring shafts drive the top propeller, the middle shearing blade, and the bottom propeller to rotate simultaneously, which greatly improves the efficiency of stirring the material, avoids the problem of "dead corners" in the stirring of the material, and improves the dissolution efficiency of pectin.

[0016] 2. This invention overcomes the problem of "hot edges and cold center" in traditional materials by using an outer jacket, an outer heating pipe, a central column, and an inner heating pipe, which can heat the material evenly and improve the stability of pectin. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the three-dimensional cross-sectional structure of the present invention; Figure 3 This is a schematic diagram of the structure in the main cross-section of the present invention; Figure 4 This is a schematic diagram of the structure in the second front cross-section of the present invention; In the diagram: 1. Tank; 2. Mounting frame; 3. Drive frame; 4. Central column; 5. Agitator shaft; 6. Top propeller; 7. Middle shearing propeller; 8. Bottom propeller; 9. Outer jacket; 10. External heating pipe; 11. Internal heating pipe; 12. Discharge hopper; 13. First motor; 14. Drive shaft; 15. Second motor; 16. Support frame; 17. Limiting sleeve; 18. Rotating sleeve; 19. Reinforcing rod; 20. Transmission shaft; 21. Propeller. Detailed Implementation

[0018] 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.

[0019] Example Please see Figure 1-4 This embodiment provides the following technical solution: an extraction tank for extracting pectin from straw, including a tank body 1, an installation frame 2 fixedly connected inside the tank body 1, a feeding hopper fixedly connected to the top of the tank body 1, and the other end of the feeding hopper penetrating into the tank body 1 and located below the installation frame 2. Through the feeding hopper, pretreated straw and extractant can be added into the tank body 1.

[0020] A discharge hopper 12 is fixedly connected to the bottom of the tank body 1. A discharge valve is installed inside the discharge hopper 12. Through the discharge hopper 12 and the discharge valve, the processed material can be discharged from the tank body 1.

[0021] The mounting frame 2 is equipped with a stirring mechanism; the stirring mechanism includes a drive frame 3, which is rotatably connected to the mounting frame 2. A second motor 15 is also fixedly connected to the top of the tank 1. The output shaft of the second motor 15 is connected to the drive frame 3 for transmission. In some embodiments, the drive frame 3 has a convex structure. One end of the drive frame 3 is connected to the output shaft of the second motor 15 through belt transmission. Under the driving action of the second motor 15, the drive frame 3 can rotate on the mounting frame 2.

[0022] A central column 4 is provided below the drive frame 3. Multiple stirring shafts 5 are rotatably connected to the drive frame 3. A top propeller 6, a middle shearing blade 7, and a bottom propeller 8 are fixedly connected to the stirring shafts 5 in sequence. The multiple stirring shafts 5 are arranged in a ring inside the drive frame 3. A first motor 13 is fixedly connected to the top of the tank 1. A drive shaft 14 extending into the drive frame 3 is fixedly connected to the output shaft of the first motor 13. The drive shaft 14 is connected to the stirring shafts 5 on the drive frame 3. In some embodiments, the multiple stirring shafts 5 and the drive shaft 14 are connected by belt drive. During the process of the multiple stirring shafts 5 rotating inside the tank 1 driven by the drive frame 3, the stirring shafts 5 drive the top propeller 6, the middle shearing blade 7, and the bottom propeller 8 to rotate simultaneously, which greatly improves the efficiency of stirring the material, avoids the problem of "dead corners" in the stirring of the material, and improves the dissolution efficiency of pectin.

[0023] A support frame 16 is fixedly connected to the bottom of the central column 4. The other end of the support frame 16 is fixedly connected to the inner wall of the tank 1. The top of the support frame 16 is rotatably connected to the drive frame 3. Through the support frame 16, the central column 4 can be fixedly connected to the inside of the tank 1. During the rotation of the drive frame 3, it can also provide support for the drive frame 3.

[0024] A limiting sleeve 17 is fixedly connected to the outer side of the central column 4. A rotating sleeve 18 is rotatably connected to the limiting sleeve 17. A reinforcing rod 19 corresponding to the stirring shaft 5 is fixedly connected to the outer side of the rotating sleeve 18. The other end of the reinforcing rod 19 is rotatably connected to the stirring shaft 5. In some embodiments, the limiting sleeve 17 is set below the drive frame 3. With the limiting sleeve 17, rotating sleeve 18 and reinforcing rod 19, when the drive frame 3 drives the stirring shaft 5 to rotate, the stirring shaft 5 can also rotate stably on the drive frame 3, which improves the stability of the stirring shaft 5 on the drive frame 3 and also improves the stability of the material stirring.

[0025] It also includes an anti-settling mechanism, which includes a drive shaft 20 and a propeller 21. The drive shaft 20 is rotatably connected to the bottom of the central column 4, and the propeller 21 is fixedly connected to the drive shaft 20. The other end of the drive shaft 20 passes through the central column 4 and the drive frame 3 and is fixedly connected to the drive shaft 14. In some embodiments, the drive shaft 20 is rotatably connected to the central column 4, and the propeller 21 is located below the support frame 16. During the rotation of the drive shaft 14, the drive shaft 20 drives the propeller 21 to rotate, which can transport the material at the bottom of the tank 1 upward, prevent the material from settling at the bottom of the tank 1, and also make the propeller 21 cooperate better with the bottom propeller, making it easier to stir the material in the tank 1.

[0026] In some embodiments, the propeller 21 has a conical structure, and the blade diameter of the propeller 21 decreases from top to bottom.

[0027] A heating mechanism is provided on the tank body 1. The heating mechanism includes an outer jacket 9 and a central column 4. The outer jacket 9 is fixedly connected to the outside of the tank body 1. An external heating pipe 10 that fits against the outer wall of the tank body 1 is fixedly connected inside the outer jacket 9. The central column 4 is fixedly connected to the inside of the tank body 1. An internal heating pipe 11 is fixedly connected to the central column 4. Through the outer jacket 9, the external heating pipe 10, the central column 4 and the internal heating pipe 11, the problem of "hot edges and cold center" of traditional materials is overcome, and the material can be heated evenly, thus improving the stability of pectin.

[0028] In some embodiments, the central column 4 is a hollow structure, and the outer wall of the inner heating pipe 11 is located on the outside of the central column 4, while the inner wall of the inner heating pipe 11 is located on the inside of the central column 4. This reduces the area of ​​the inner heating pipe 11 exposed on the outside of the central column 4, thereby reducing the problem of materials easily adhering to the inner heating pipe 11, while ensuring the heat exchange effect between the hot water and the materials in the inner heating pipe 11.

[0029] In some embodiments, both the external heating pipe 10 and the internal heating pipe 11 are spiral structures. The inlet and outlet ends of the external heating pipe 10 and the internal heating pipe 11 extend to the outside of the outer jacket 9. During the circulation of hot water in the external heating pipe 10 and the internal heating pipe 11, the hot water can play a role in heat exchange, which can better transfer heat to the material and facilitate the dissolution of pectin.

[0030] It also includes a hot water supply mechanism, which includes a water storage tank with a heater fixedly connected inside. The water storage tank is equipped with an injection pipe, a discharge pipe, and a recovery pipe. The outlet of the discharge pipe is connected to the inlet of the water supply pump. The outlet of the water supply pump is connected to the inlet of the external heating pipe 10 and the internal heating pipe 11 through a three-way valve. The recovery pipe is connected to the outlet of the external heating pipe 10 and the internal heating pipe 11 through a three-way valve. Through the hot water supply mechanism, a complete circulation system can be formed to heat the hot water after heat exchange, so as to better facilitate heat exchange between the hot water and the materials.

[0031] The working principle of this invention is as follows: When in use, the raw materials and extractant are added into the tank 1, the second motor 15 is started, and the drive frame 3 is rotated on the mounting frame 2. At the same time, the first motor 13 is started, and the drive shaft 14 is rotated on the drive frame 3. While the drive shaft 14 is rotating, it can drive multiple stirring shafts 5 on the drive frame 3 to rotate simultaneously, so that the top propulsion paddle 6, the middle shearing paddle 7 and the bottom propulsion paddle 8 can work, which can push the materials at the top and bottom of the tank 1 towards the middle of the tank 1, which is beneficial for the middle shearing paddle 7 to crush the materials. Meanwhile, driven by the drive shaft 14, the drive shaft 20 drives the propeller 21 to work, conveying the material at the bottom of the tank 1 upwards, so that the propeller can better cooperate with the bottom propeller to convey the material at the bottom of the tank 1 to the middle of the tank 1, avoiding the material from settling at the bottom of the tank 1. At the same time, the water supply pump is started to send the hot water heated to a certain temperature in the water storage tank into the external heating pipe 10 and the internal heating pipe 11. As the water pressure increases, the hot water flows along the external heating pipe 10 and the internal heating pipe 11, so that the hot water exchanges heat with the material in the tank 1 until the hot water after heat exchange flows back into the water storage tank, completing the hot water circulation step.

[0032] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An extraction tank for extracting pectin from straw, characterized in that: The device includes a tank (1), a mounting frame (2) is fixedly connected inside the tank (1), and a stirring mechanism is provided on the mounting frame (2); the stirring mechanism includes a drive frame (3), the drive frame (3) is rotatably connected to the mounting frame (2), a central column (4) is provided below the drive frame (3), and multiple stirring shafts (5) are rotatably connected on the drive frame (3), and a top propeller (6), a middle shearing blade (7) and a bottom propeller (8) are fixedly connected on the stirring shafts (5) in sequence; The tank (1) is provided with a heating mechanism, which includes an outer jacket (9), an outer heating pipe (10) and an inner heating pipe (11). The outer jacket (9) is fixedly connected to the outside of the tank (1). The outer heating pipe (10) is fixedly connected inside the outer jacket (9) and fits against the outer wall of the tank (1). The inner heating pipe (11) is fixedly connected to the outside of the central column (4).

2. The extraction tank for extracting pectin from straw according to claim 1, characterized in that: The top of the tank (1) is fixedly connected to a feeding hopper, and the other end of the feeding hopper extends into the tank (1) and is located below the mounting frame (2).

3. The extraction tank for extracting pectin from straw according to claim 3, characterized in that: The bottom of the tank (1) is fixedly connected to a discharge hopper (12), and a discharge valve is provided inside the discharge hopper (12).

4. The extraction tank for extracting pectin from straw according to claim 1, characterized in that: A first motor (13) is fixedly connected to the top of the tank (1), and a drive shaft (14) extending into the drive frame (3) is fixedly connected to the output shaft of the first motor (13). The drive shaft (14) is connected to the stirring shaft (5) on the drive frame (3). A second motor (15) is also fixedly connected to the top of the tank (1), and the output shaft of the second motor (15) is connected to the drive frame (3).

5. An extraction tank for extracting pectin from straw according to claim 1, characterized in that: The bottom of the central column (4) is fixedly connected to a support frame (16), the other end of the support frame (16) is fixedly connected to the inner wall of the tank (1), and the top of the support frame (16) is rotatably connected to the drive frame (3).

6. An extraction tank for extracting pectin from straw according to claim 5, characterized in that: A limiting sleeve (17) is fixedly connected to the outer side of the central column (4). A rotating sleeve (18) is rotatably connected to the limiting sleeve (17). A reinforcing rod (19) corresponding to the stirring shaft (5) is fixedly connected to the outer side of the rotating sleeve (18). The other end of the reinforcing rod (19) is rotatably connected to the stirring shaft (5).

7. An extraction tank for extracting pectin from straw according to claim 1, characterized in that: It also includes an anti-settling mechanism, which includes a drive shaft (20) and a propeller (21). The drive shaft (20) is rotatably connected to the bottom of the central column (4). The propeller (21) is fixedly connected to the drive shaft (20). The other end of the drive shaft (20) passes through the central column (4) and the drive frame (3) and is fixedly connected to the drive shaft (14).

8. An extraction tank for extracting pectin from straw according to claim 1, characterized in that: Both the external heating pipe (10) and the internal heating pipe (11) are spiral structures, and the inlet and outlet ends of the external heating pipe (10) and the internal heating pipe (11) extend to the outside of the outer jacket (9).

9. An extraction tank for extracting pectin from straw according to claim 8, characterized in that: It also includes a hot water supply mechanism, wherein the hot water supply equipment includes a water storage tank, a heater is fixedly connected inside the water storage tank, and a water injection pipe, a discharge pipe and a recovery pipe are provided on the water storage tank. The outlet end of the discharge pipe is connected to the inlet end of the water supply pump. The outlet end of the water supply pump is connected to the inlet end of the external heating pipe (10) and the internal heating pipe (11) respectively through a three-way valve. The recovery pipe is connected to the outlet end of the external heating pipe (10) and the internal heating pipe (11) respectively through a three-way valve.

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