A device for the preparation of solvent crystallized betaine

Abstract

The application provides a preparation device for solvent crystallization betaine, which comprises a processing tank with both upper and lower ends being open, a top cover being detachably arranged on the top of the processing tank, a feeding hopper being arranged on the top cover, a mounting frame being vibrationally arranged in the processing tank, a filter cartridge being arranged in the mounting frame, a discharging cylinder with a conical lower end being further arranged on the bottom of the mounting frame through a vertical rod, and an upper end inner side wall of the discharging cylinder being slidably connected with a lower end outer side wall of the processing tank. The preparation device for solvent crystallization betaine can not only meet the basic requirement of filtering the material, but also can vibrate the discharging structure on the basis of vibrating the filtering structure, so as to improve the smoothness of discharging, and further more fully meet the use requirement of people.

Description

Technical Field

[0001] This invention belongs to the technical field of betaine preparation equipment, and specifically relates to a preparation device for solvent crystallization of betaine. Background Technology

[0002] In the preparation of solvent-crystallized betaine, filtration is required. While existing equipment for preparing solvent-crystallized betaine meets the basic requirement of material filtration, such devices typically only configure vibration mechanisms for the filter components, neglecting the vibration-assisted design of the discharge structure. This results in the filtered material relying solely on gravity and its own flowability for discharge. This single discharge method easily leads to material accumulation, bridging, and even blockage at the discharge port. This not only forces operators to frequently stop the machine for manual unblocking, consuming significant time and labor costs, but also severely disrupts production continuity and significantly reduces discharge efficiency.

[0003] Therefore, existing devices, lacking effective vibration drive for the discharge structure, are unable to meet the urgent needs of industrial production for efficient and stable discharge, and structural innovation is urgently needed to solve this technical bottleneck. Summary of the Invention

[0004] In view of this, the present invention addresses the shortcomings of the prior art by providing a preparation apparatus for solvent crystallization of betaine, which not only meets the basic requirements for material filtration, but also allows for vibration treatment of the discharge structure in addition to vibration treatment of the filtration structure, thereby improving the smoothness of discharge and thus more fully meeting people's usage needs.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a preparation device for solvent crystallization of betaine, comprising a processing tank with openings at both the top and bottom, a detachable top cover on the top of the processing tank, a feed hopper on the top cover, a vibrating mounting frame inside the processing tank, a filter cylinder within the mounting frame, and a discharge cylinder with a conical lower end mounted on the bottom of the mounting frame via a vertical rod, the upper inner wall of the discharge cylinder being slidably connected to the lower outer wall of the processing tank. The corresponding beneficial technical effects should be added at the end of each paragraph, briefly described; there is no need to disrupt the original paragraph layout.

[0006] As a further improvement of the present invention, a sealing ring adapted to the discharge cylinder is also provided on the lower outer wall of the processing tank. The sealing ring allows for a seal between the processing tank and the discharge cylinder, preventing solvent evaporation during crystallization and thus avoiding environmental pollution.

[0007] As a further improvement of the present invention, a vibration spring is vertically arranged on the top bottom wall of the top cover. The bottom of the vibration spring is connected to the top of the mounting frame, and a vibration motor is also installed on the mounting frame. A flexible protective cover is also provided between the top cover and the mounting frame, sleeved on the outside of the vibration spring. By utilizing the cooperation of the vibration spring and the vibration motor, the mounting frame and the filter cylinder can be driven to vibrate, which facilitates the thorough filtration of betaine raw materials. At the same time, the flexible protective cover can protect the vibration spring and extend its service life.

[0008] As a further improvement of the present invention, a guide slot is vertically provided on the top cover, and a guide plate is provided on the mounting bracket to engage with the guide slot. Both the guide slot and the guide plate are located inside the flexible protective cover. By utilizing the cooperation of the guide slot and the guide plate, the vibration trajectory of the mounting bracket can be limited, ensuring the stability of the mounting bracket.

[0009] As a further improvement of the present invention, a fixing frame is also provided on the mounting frame, and a mounting box is provided on the fixing frame. A stirring motor is installed in the mounting box, and the output shaft of the stirring motor passes through the bottom of the mounting box and the top of the fixing frame. A first stirring shaft extending into the filter cylinder is connected to the output shaft of the stirring motor via a coupling. The first stirring shaft is equipped with crushing blades adapted to the filter cylinder. By using the stirring motor to drive the first stirring shaft and the crushing blades to rotate, the betaine raw material in the filter cylinder can be crushed, preventing the betaine raw material from accumulating in the filter cylinder and causing blockage.

[0010] As a further improvement of the present invention, a second stirring shaft is also provided at the bottom of the first stirring shaft, passing through the bottom of the filter cylinder and extending to the lower end of the discharge cylinder. The second stirring shaft is provided with stirring blades adapted to the discharge cylinder. By using the second stirring shaft to drive the stirring blades to rotate, the betaine and solvent in the discharge cylinder can be fully mixed and stirred, thereby improving the crystallization efficiency of betaine.

[0011] As a further improvement of the present invention, the top cover is snapped onto the upper end of the treatment tank, and the top cover is also provided with connecting bolts for screwing and fixing the upper end of the treatment tank. The treatment tank is provided with threaded connection holes that connect to the connecting bolts. By utilizing the cooperation between the connecting bolts and the threaded connection holes, the top cover and the treatment tank can be fixed together, improving the firmness of the connection between the top cover and the treatment tank.

[0012] As a further improvement of the present invention, a support frame is also provided at the bottom of the treatment tank, and an extension plate is provided at the bottom side of the support frame. Anchor bolts for connecting to the ground are provided on the extension plate. The treatment tank is supported by the support frame, and the support frame is fixed by the anchor bolts, which improves the overall stability of the device and effectively prevents the device from easily shifting or tipping over during operation.

[0013] As a further improvement of the present invention, a fastening insert is provided on the inner side wall of the discharge cylinder to engage with the vertical rod, and a fastening bolt for fixing the vertical rod is also provided on the discharge cylinder. By simply inserting and fixing the vertical rod into the fastening insert, and then screwing the fastening bolt through the side wall of the discharge cylinder and fixing it to the lower end of the vertical rod, flexible fixing of the vertical rod and the discharge cylinder can be achieved. By simply separating the fastening bolt from the vertical rod, the discharge cylinder can be removed from the vertical rod and the processing tank, thereby removing the restriction on the upward movement of the top cover, mounting bracket, and filter cylinder, and facilitating the separation of the top cover, mounting bracket, and filter cylinder from the processing tank.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: Firstly, this invention applies vibration to the entire device structure. A vibration motor drives the mounting frame and filter cylinder for vibration filtration, simultaneously causing the vertical rod and the lower discharge cylinder to vibrate synchronously. This integrated design of "filtration vibration + discharge vibration" breaks the limitation of traditional equipment that only vibrates the filtration structure. Under vibration, the discharge cylinder (especially the conical structure) effectively prevents the filtered solvent crystals (betaine) from bridging or sticking to the wall at the discharge port. The vibration assists the material in sliding down, greatly improving the smoothness of the discharge and fundamentally solving the problem of discharge blockage. No manual unblocking is required, significantly improving production efficiency.

[0015] Secondly, the device is equipped with a first stirring shaft and a second stirring shaft driven by a stirring motor, realizing synchronous stirring of the filtration chamber and the discharge chamber. The crushing blades located inside the filtration cylinder can break up the incoming material and prevent large pieces of material from clogging the filter screen; while the stirring blades extending into the discharge cylinder can agitate the crystallized material that is about to be discharged, further preventing the material from being compacted or agglomerated in the discharge cylinder, ensuring the looseness and uniformity of the betaine crystallized product.

[0016] Thirdly, the lower outer wall of the processing tank and the upper inner wall of the discharge cylinder are connected by a sliding joint, and a matching sealing ring is provided. This design not only ensures the sealing between the filter chamber and the discharge chamber during vibration to prevent material leakage, but also provides stable guidance and support for the up-and-down vibration of the discharge cylinder, ensuring the smooth operation of the equipment.

[0017] Fourth, the vibration spring between the top cover and the mounting frame works with the vibration motor to provide vibration force. At the same time, the flexible protective cover on the outside of the vibration spring can effectively prevent materials or dust from entering the spring mechanism, protecting the core components and extending the service life of the equipment. The guide plate restricts the movement trajectory of the mounting frame, prevents eccentric swing during vibration, and ensures the safety and reliability of the equipment operation. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the fastening insert of the present invention; Figure 3 This is a schematic diagram of the structure of the second stirring shaft of the present invention; Figure 4 This is a schematic diagram of the structure of the first stirring shaft of the present invention.

[0020] In the diagram: 101, processing tank; 102, top cover; 103, feed hopper; 104, mounting frame; 105, filter cartridge; 106, discharge cylinder; 107, vibration spring; 108, vibration motor; 109, flexible protective cover; 110, guide slot; 111, guide plate; 112, vertical rod; 113, fastening sleeve; 114, fastening bolt; 201, fixing frame; 202, mounting box; 203, stirring motor; 204, coupling; 205, first stirring shaft; 206, crushing blade; 207, second stirring shaft; 208, stirring blade; 209, connecting bolt; 301, support frame; 302, extension plate; 303, anchor bolt. Detailed Implementation

[0021] To better understand the present invention, the following embodiments further illustrate the content of the invention, but the scope of protection of the present invention is not limited to the following embodiments. Numerous specific details are set forth in the following description to provide a more thorough understanding of the invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details.

[0022] like Figure 1 As shown, an apparatus for preparing betaine by solvent crystallization includes a processing tank 101 with openings at both the top and bottom. A top cover 102 is detachably provided on the top of the processing tank 101, and a feed hopper 103 is provided on the top cover 102. A mounting frame 104 is vibratingly provided inside the processing tank 101, and a filter cylinder 105 is provided in the mounting frame 104. A discharge cylinder 106 with a conical lower end is also provided at the bottom of the mounting frame 104 via a vertical rod 112. The upper inner wall of the discharge cylinder 106 is slidably connected to the lower outer wall of the processing tank 101.

[0023] A sealing ring adapted to the discharge cylinder 106 is also provided on the lower outer wall of the processing tank 101. The sealing ring is made of fluororubber material that is resistant to solvent corrosion and can form a reliable sealing barrier at the connection between the discharge cylinder 106 and the processing tank 101, effectively preventing solvent evaporation or crystal leakage during the crystallization process and ensuring the cleanliness and safety of the production environment.

[0024] like Figure 3As shown, a vibration spring 107 is vertically installed on the top bottom wall of the top cover 102. The bottom of the vibration spring 107 is connected to the top of the mounting frame 104. A vibration motor 108 is also installed on the mounting frame 104. A flexible protective cover 109 is also installed between the top cover 102 and the mounting frame 104, which is sleeved on the outside of the vibration spring 107. The flexible protective cover 109 is made of high-strength silicone cloth, which can effectively isolate the vibration components from the external environment, prevent dust from entering the vibration spring 107 and causing jamming or wear, and extend the service life of the equipment.

[0025] like Figure 3 , 4 As shown, a guide slot 110 is vertically arranged on the top cover 102, and a guide plate 111 is provided on the mounting bracket 104 to be inserted into the guide slot 110. The guide plate 111 slides vertically along the inner wall of the guide slot 110 to ensure that the movement trajectory of the mounting bracket 104 driven by the vibration motor 108 is vertical and stable, avoiding horizontal deviation or shaking. The guide slot 110 and the guide plate 111 are both located inside the flexible protective cover 109, which further ensures the cleanliness and smooth operation of the guiding mechanism.

[0026] like Figure 3 , 4 As shown, a fixed frame 201 is also provided on the mounting frame 104, and a mounting box 202 is also provided on the fixed frame 201. A stirring motor 203 is provided in the mounting box 202. The output shaft of the stirring motor 203 passes through the bottom of the mounting box 202 and the top of the fixed frame 201. The output shaft of the stirring motor 203 is rotatably connected to the bottom of the mounting box 202 and the top of the fixed frame 201 through a bearing. The inner ring of the bearing is interference-fitted with the output shaft of the stirring motor 203, and the outer ring of the bearing is fixedly connected to the bottom of the mounting box 202 and the top of the fixed frame 201. A first stirring shaft 205 extending into the filter cylinder 105 is provided on the output shaft of the stirring motor 203 through a coupling 204. The first stirring shaft 205 is provided with crushing blades 206 adapted to the filter cylinder 105. The crushing blades 206 are spirally distributed and can effectively break up the clumps of betaine material during the stirring process, thereby improving the uniformity of crystallization.

[0027] like Figure 3 , 4As shown, a second stirring shaft 207 is also provided at the bottom of the first stirring shaft 205, passing through the bottom of the filter cylinder 105 and extending to the lower end of the discharge cylinder 106. The second stirring shaft 207 is rotatably connected to the bottom of the filter cylinder 105 via a bearing. The inner ring of the bearing is interference-fitted with the second stirring shaft 207, and the outer ring of the bearing is fixedly connected to the bottom of the filter cylinder 105. The second stirring shaft 207 is provided with stirring blades 208 adapted to the discharge cylinder 106. The stirring blades 208 maintain a small gap with the conical inner wall of the discharge cylinder 106, which can prevent crystals from accumulating and clogging at the bottom of the discharge cylinder 106, ensuring smooth discharge. like Figure 1 As shown, the top cover 102 is snapped onto the upper end of the processing tank 101. The top cover 102 is also provided with a connecting bolt 209 for screwing and fixing the upper end of the processing tank 101. The processing tank 101 is provided with a threaded connection hole connected to the connecting bolt 209. By tightening the connecting bolt 209, the top cover 102 and the processing tank 101 can be firmly locked, ensuring the overall structural stability of the equipment during vibration and stirring.

[0028] like Figure 1 As shown, a support frame 301 is also provided at the bottom of the treatment tank 101. An extension plate 302 is also provided at the bottom side of the support frame 301. Anchor bolts 303 are provided on the extension plate 302 for connecting to the ground. The support frame 301 is fixed to the ground by the anchor bolts 303, which can effectively absorb some of the vibration energy during the operation of the equipment and reduce the impact on the installation foundation.

[0029] like Figure 2 As shown, a fastening insert 113 is provided on the inner side wall of the discharge cylinder 106 to engage with the vertical rod 112. The discharge cylinder 106 is also provided with a fastening bolt 114 for fixing the vertical rod 112. By simply inserting and fixing the vertical rod 112 into the fastening insert 113, and then passing the fastening bolt 114 through the side walls of the discharge cylinder 106 and the fastening insert 113 and screwing it to the lower end of the vertical rod 112, the vertical rod 112 and the discharge cylinder 106 can be flexibly fixed. By simply separating the fastening bolt 114 from the vertical rod 112, the discharge cylinder 106 can be removed from the vertical rod 112 and the processing tank 101, thereby removing the restriction on the upward movement of the top cover 102, the mounting bracket 104 and the filter cartridge 105, and facilitating the separation of the top cover 102, the mounting bracket 104 and the filter cartridge 105 from the processing tank 101.

[0030] To achieve precise control of the vibration agitator and stirring motor 203, the device is also equipped with an integrated electrical control system. Both the vibration motor 108 and the stirring motor 203 are electrically connected to a programmable logic controller (PLC) via a frequency converter driver. The PLC has a built-in preset process control program. Operators can set the vibration frequency, amplitude, stirring speed, and running time parameters through the human-machine interface. The PLC adjusts the output of the frequency converter driver in real time according to the set values, thereby precisely controlling the vibration intensity of the vibration motor 108 and the speed of the stirring motor 203. This ensures that betaine obtains the most suitable stirring and vibration conditions at different crystallization stages (such as the nucleation stage and the growth stage). At the same time, the electrical control system also has overload protection, fault alarm, and data logging functions, further improving the automation level and operational reliability of the equipment.

[0031] This invention relates to an apparatus for preparing betaine by solvent crystallization. Its working principle is based on the synergistic effect of vibration-assisted filtration and mechanical stirring to achieve efficient, continuous, and clog-free processing of crystalline materials. The specific workflow is as follows: 1. Loading Workers inject the solvent crystallizing betaine mixture to be processed into the processing tank 101 through the feed hopper 103. The mounting frame 104 is suspended below the top cover 102 by the vibration spring 107. Its bottom is connected to the discharge cylinder 106 through the vertical rod 112. The upper inner wall of the discharge cylinder 106 slides with the lower outer wall of the processing tank 101 and is dynamically sealed by the sealing ring to prevent material leakage.

[0032] II. Vibration Filtration Stage The vibration motor 108 on the mounting bracket 104 is activated, and the vibration force generated by the vibration motor 108 is transmitted to the filter cartridge 105 through the mounting bracket 104, causing it to vibrate at high frequency in the vertical direction. This vibration effectively prevents the filter screen from clogging, accelerates the discharge of solvent through the wall of the filter cartridge 105, and promotes the uniform distribution of crystallized particles on the surface of the filter screen, thereby improving the solid-liquid separation efficiency. During vibration, the guide plate 111 on the mounting bracket 104 slides up and down within the guide slot 110 of the top cover 102, limiting the lateral displacement of the mounting bracket 104 and ensuring a stable vibration trajectory; the flexible protective cover 109 wraps around the vibration spring 107 to prevent dust or materials from entering the spring gap, ensuring the long-term reliable operation of the vibration mechanism.

[0033] III. Synchronous Mixing and Dispersing Stage The stirring motor 203 inside the installation box 202 is started synchronously. Its output shaft drives the first stirring shaft 205 to rotate. The crushing blades 206 on the first stirring shaft 205 agitate and crush the material inside the filter cylinder 105, preventing crystalline agglomerates from clogging the filter pores and improving filtration permeability. The first stirring shaft 205 continues to extend downward, passing through the bottom of the filter cylinder 105, and connects to the second stirring shaft 207. The second stirring shaft 207 is equipped with stirring blades 208 that are adapted to the inner wall of the discharge cylinder 106, extending to the lower end of the discharge cylinder 106.

[0034] IV. Vibration-assisted discharge stage Since the discharge cylinder 106 is rigidly connected to the mounting frame 104 via the vertical rod 112, when the mounting frame 104 vibrates, the vertical rod 112 synchronously drives the discharge cylinder 106 to vibrate up and down. The discharge cylinder 106 has a conical structure, and its inner wall generates periodic disturbances under the action of vibration, effectively breaking the adhesion and static friction between materials, and preventing the crystallized material from "bridging" or sticking to the wall at the discharge port. At the same time, the stirring blades 208 on the second stirring shaft 207 continuously rotate, loosening and pushing the material in the discharge cylinder 106, further preventing compaction and agglomeration, and ensuring that the material is smoothly discharged under the dual action of gravity and vibration.

[0035] V. Disassembly and Maintenance Phase When cleaning or replacing the filter cartridge 105, first loosen the fastening bolts 114 to disengage the vertical rod 112 from the fastening insert 113 of the discharge cylinder 106, allowing the discharge cylinder 106 to be removed from the vertical rod 112 and the processing tank 101. Then, unscrew the connecting bolts 209 to release the top cover 102 from the processing tank 101, allowing the top cover 102, mounting bracket 104, filter cartridge 105, and stirring assembly to be lifted upwards as a whole, achieving quick disassembly and maintenance, greatly improving the operability and cleaning efficiency of the equipment.

[0036] In summary, this device drives the entire internal components (including the filter cylinder 105 and the discharge cylinder 106) to vibrate synchronously through the vibration motor 108, and combines the dual-shaft stirring system to disperse and loosen the filter zone and the discharge zone respectively, realizing efficient and anti-clogging treatment of the entire process from feeding, filtering, crystallization to discharge, which significantly improves the preparation efficiency and product quality of solvent crystallized betaine.

[0037] The above are preferred embodiments of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An apparatus for preparing betaine by solvent crystallization, comprising a processing tank (101) open at both the top and bottom, characterized in that: The top of the processing tank (101) is detachably provided with a top cover (102), and a feed hopper (103) is provided on the top cover (102). The processing tank (101) is internally provided with a vibrating mounting frame (104), and a filter cylinder (105) is provided in the mounting frame (104). The bottom of the mounting frame (104) is also provided with a discharge cylinder (106) with a cone-shaped lower end through a vertical rod (112). The upper inner side wall of the discharge cylinder (106) is slidably connected to the lower outer side wall of the processing tank (101).

2. The apparatus for preparing betaine by solvent crystallization as described in claim 1, characterized in that: The lower outer wall of the processing tank (101) is also provided with a sealing ring that is compatible with the discharge cylinder (106).

3. The apparatus for preparing betaine by solvent crystallization as described in claim 2, characterized in that: A vibration spring (107) is vertically arranged on the top bottom wall of the top cover (102). The bottom of the vibration spring (107) is connected to the top of the mounting frame (104). A vibration motor (108) is also arranged on the mounting frame (104). A flexible protective cover (109) is also provided between the top cover (102) and the mounting frame (104) and sleeved on the outside of the vibration spring (107).

4. The apparatus for preparing betaine by solvent crystallization as described in claim 3, characterized in that: The top cover (102) is also provided with a guide slot (110) vertically, and the mounting bracket (104) is provided with a guide plate (111) that is inserted into the guide slot (110). The guide slot (110) and the guide plate (111) are both located inside the flexible protective cover (109).

5. The apparatus for preparing betaine by solvent crystallization as described in claim 4, characterized in that: The mounting frame (104) is also provided with a fixing frame (201), and the fixing frame (201) is also provided with a mounting box (202). The mounting box (202) is provided with a stirring motor (203). The output shaft of the stirring motor (203) passes through the bottom of the mounting box (202) and the top of the fixing frame (201). The output shaft of the stirring motor (203) is provided with a first stirring shaft (205) extending into the filter cylinder (105) via a coupling (204). The first stirring shaft (205) is provided with a crushing blade (206) adapted to the filter cylinder (105).

6. The apparatus for preparing betaine by solvent crystallization as described in claim 5, characterized in that: The bottom of the first stirring shaft (205) is also provided with a second stirring shaft (207) that passes through the bottom of the filter cylinder (105) and extends to the lower end of the discharge cylinder (106). The second stirring shaft (207) is provided with stirring blades (208) that are adapted to the discharge cylinder (106).

7. The apparatus for preparing betaine by solvent crystallization as described in claim 6, characterized in that: The top cover (102) is snapped into the upper end of the treatment tank (101). The top cover (102) is also provided with a connecting bolt (209) for screwing and fixing the upper end of the treatment tank (101). The treatment tank (101) is provided with a threaded connection hole connected to the connecting bolt (209).

8. The apparatus for preparing betaine by solvent crystallization as described in any one of claims 1-7, characterized in that: The bottom of the treatment tank (101) is also provided with a support frame (301), and the bottom side of the support frame (301) is also provided with an extension plate (302), and the extension plate (302) is provided with anchor bolts (303) for connecting to the ground.

9. The apparatus for preparing betaine by solvent crystallization as described in any one of claims 1-7, characterized in that: The inner wall of the discharge cylinder (106) is provided with a fastening insert (113) that engages with the vertical rod (112), and the discharge cylinder (106) is also provided with a fastening bolt (114) for fixing the vertical rod (112).

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