A special stirring paddle for crystallization of sodium DL-malate

Abstract

The utility model relates to DL -sodium malate processing technical field, concretely relates to a kind of anti-wall forming DL -sodium malate crystallization special stirring paddle, including cover, stirring subassembly and scraping component;Stirring subassembly includes transmission shaft, stirring blade, connecting piece and spiral frame, transmission shaft is rotatably connected with cover, and passes through cover, the number of stirring blade is multiple, multiple stirring blade is fixedly connected with transmission shaft respectively, and is located the outside of transmission shaft respectively, the number of connecting piece is multiple, multiple connecting piece is connected with stirring blade respectively, and is located the top of stirring blade respectively, the number of spiral frame is two, two spiral frames are fixedly connected with connecting piece respectively, and are located between connecting piece respectively, scraping component is connected with transmission shaft, solve the problem that the overstrong shear force generated by high-speed rotation can lead to crystal breakage, influence the morphology and granularity distribution of crystal, and then adversely affect product quality.

Description

Technical Field

[0001] This utility model relates to the field of DL-malate processing technology, and in particular to a special stirring paddle for preventing DL-malate crystallization and wall clotting. Background Technology

[0002] Sodium DL-malate is an organic acid salt widely used in food, pharmaceutical and other fields. The efficiency and quality of its crystallization process are crucial to subsequent production and product performance.

[0003] However, traditional agitators also have obvious drawbacks in use. To maintain the uniformity of crystals in the vessel, traditional agitators require a high rotation speed, but the excessive shear force generated by high-speed rotation can cause crystal breakage, affecting the crystal morphology and particle size distribution, and thus adversely affecting product quality. Utility Model Content

[0004] The purpose of this invention is to provide a special stirring paddle for preventing crystallization of DL-sodium malate, which solves the problem that excessive shear force generated by high-speed rotation can cause crystal breakage, affecting the crystal morphology and particle size distribution, and thus adversely affecting product quality.

[0005] To achieve the above objectives, this utility model provides a special stirring paddle for preventing the crystallization of DL-sodium malate, comprising a cover plate, a stirring assembly, and a scraping assembly; the stirring assembly includes a drive shaft, stirring blades, connecting plates, and a spiral frame; the drive shaft is rotatably connected to the cover plate and passes through the cover plate; there are multiple stirring blades, each fixedly connected to the drive shaft and located on the outside of the drive shaft; there are multiple connecting plates, each connected to the stirring blade and located on top of the stirring blade; there are two spiral frames, each fixedly connected to the connecting plate and located between the connecting plates; and the scraping assembly is connected to the drive shaft.

[0006] The stirring assembly further includes multiple fixing bolts, each of which is threadedly connected to the stirring blade and passes through the stirring blade and the connecting piece.

[0007] The stirring assembly further includes a rotating base and intermediate blades. The rotating base is fixedly connected to the drive shaft and located in the middle of the stirring blades. There are two intermediate blades, which are fixedly connected to the rotating base and located on the outer side of the rotating base.

[0008] The scraping assembly includes a scraping seat and a support frame. There are two scraping seats, which are fixedly connected to the drive shaft and located on the outside of the scraping seats. There are multiple support frames, which are fixedly connected to the scraping seats and located on the outside of the scraping seats.

[0009] The scraping assembly further includes two scraper blades, which are fixedly connected to the support frame and located between the support frame.

[0010] This utility model relates to a special stirring paddle for anti-caking DL-sodium malate crystallization. During use, an external power unit rotates, driving the transmission shaft, which in turn rotates the stirring blades, connecting plates, and a spiral frame. The rotating spiral frame provides a large stirring range in both the diameter and height directions, preventing dead zones in the flow of the medium. It generates significant shear force on the fluid during stirring. The rotation of the spiral frame ensures the stirring range covers the entire cross-section of the stirring vessel. Under the action of the stirrer, the fluid flows upward along the vessel wall, while near the stirring shaft, it flows downward. This suppresses localized overheating within the crystallization vessel at low speeds, preventing crystal breakage and significantly improving crystal morphology and particle size distribution during the crystallization process. It increases production efficiency and solves the problem that excessive shear force generated by high-speed rotation can cause crystal breakage, affecting crystal morphology and particle size distribution, and consequently negatively impacting product quality. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0012] Figure 1 This is a schematic diagram of the overall structure of the anti-caking DL-sodium malate crystallizing stirring paddle of the first embodiment of this utility model.

[0013] In the diagram: 101-cover plate, 102-drive shaft, 103-stirring blade, 104-connecting piece, 105-spiral frame, 106-fixing bolt, 107-rotating seat, 108-intermediate blade, 109-scraper seat, 110-support frame, 111-scraper bar. Detailed Implementation

[0014] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0015] The first embodiment of this application is as follows:

[0016] Please see Figure 1 ,in, Figure 1 This is a schematic diagram of the overall structure of the anti-caking DL-malate sodium crystallization special stirring paddle of the first embodiment of this utility model. This utility model provides an anti-caking DL-malate sodium crystallization special stirring paddle, including a cover plate 101, a stirring assembly and a scraping assembly. The stirring assembly includes a drive shaft 102, stirring blades 103, connecting plate 104, spiral frame 105, fixing bolts 106, rotating seat 107 and intermediate blades 108. The scraping assembly includes a scraping seat 109, a support frame 110 and a scraper 111. The above solution solves the problem that the excessive shear force generated by high-speed rotation will cause crystal breakage, affecting the crystal morphology and particle size distribution, and thus adversely affecting product quality.

[0017] In this specific embodiment, the drive shaft 102 is rotatably connected to the cover plate 101 and passes through the cover plate 101. Multiple stirring blades 103 are present, each fixedly connected to the drive shaft 102 and located on its outer side. Multiple connecting pieces 104 are present, each connected to the stirring blade 103 and located at the top of the stirring blade 103. Two spiral frames 105 are present, each fixedly connected to the connecting piece 104 and located between the connecting pieces. The scraping assembly is connected to the drive shaft 102. The cover plate 101 provides support for the device. The drive shaft 102 is connected to an external power device to provide transmission for the stirring assembly. The stirring blades 103 provide support for the connecting pieces 104 and the spiral frames 105. Simultaneously, it is used to stir the crystals within the reactor. The connecting piece 104 is used to fix the spiral frame 105 to the outside of the stirring blade 103. In use, the external power device rotates, driving the transmission shaft 102 to rotate, which in turn drives the stirring blade 103 and the connecting piece 104 to rotate, and simultaneously drives the spiral frame 105 to rotate. The rotating spiral frame 105 has a large stirring range in both the diameter and height directions, preventing the formation of dead zones in the flow of the medium during stirring. It can generate a large shear force on the fluid during stirring. The rotation of the spiral frame 105 allows the stirring range to cover the entire cross-section of the stirring container. Under the action of the stirrer, the fluid medium flows upward along the container wall under the push of the stirrer, while the fluid near the stirring shaft flows downward. This can suppress local overheating in the crystallization reactor at low speeds, avoid crystal breakage, significantly improve the crystal morphology and particle size distribution during the crystallization process, and improve production efficiency.

[0018] The fixing bolts 106 are multiple, and each fixing bolt 106 is threadedly connected to the stirring blade 103 and passes through the stirring blade 103 and the connecting piece 104 respectively. The fixing bolts 106 are used to fix the connecting piece 104 to the top of the stirring blade 103.

[0019] Secondly, the rotating seat 107 is fixedly connected to the transmission shaft 102 and is located in the middle of the stirring blade 103. There are two intermediate blades 108, which are fixedly connected to the rotating seat 107 and located on the outer side of the rotating seat 107. The rotating seat 107 is used to provide support and transmission for the intermediate blades 108, and the intermediate blades 108 are used to mainly rotate the crystals in the reactor.

[0020] Furthermore, there are two scraper seats 109, which are fixedly connected to the drive shaft 102 and located on the outer side of the scraper seats 109. There are multiple support frames 110, which are fixedly connected to the scraper seats 109 and located on the outer side of the scraper seats 109. The scraper seats 109 provide a transmission function for the scraping assembly, and the support frames 110 provide support for the scraper blades 111. The rotating scraper blades 111 are used to clean the inner wall of the reactor to prevent DL-malate sodium from crystallizing on the inner wall surface of the reactor.

[0021] Finally, there are two scraper blades 111, which are fixedly connected to the support frame 110 and located between the support frames 110 respectively.

[0022] Using the anti-caking DL-sodium malate crystallization special stirring paddle of this embodiment, during use, the external power device rotates, driving the drive shaft 102 to rotate, simultaneously driving the stirring blade 103 and the connecting piece 104 to rotate, and also driving the spiral frame 105 to rotate. The rotating spiral frame 105 has a large stirring range in both the diameter and height directions, preventing the formation of dead zones in the flow of the medium during stirring. It can generate a large shear force on the fluid during stirring. The rotation of the spiral frame 105 can make the stirring range cover the entire cross-section of the stirring container. Under the action of the stirrer, the fluid medium flows upward along the container wall under the push of the stirrer, while the fluid near the stirring shaft flows downward. It can suppress local overheating in the crystallization vessel at low speed, avoid crystal breakage, significantly improve the crystal morphology and particle size distribution during the crystallization process, improve production efficiency, and solve the problem that the excessive shear force generated by high-speed rotation will cause crystal breakage, affecting the crystal morphology and particle size distribution, and thus adversely affecting product quality.

[0023] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that implementing all or part of the above embodiments and making equivalent changes in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A special stirring paddle for preventing DL-sodium malate crystallization and wall adhesion, comprising a cover plate, characterized in that, It also includes a mixing assembly and a scraping assembly; The stirring assembly includes a drive shaft, stirring blades, connecting plates, and a spiral frame. The drive shaft is rotatably connected to the cover plate and passes through the cover plate. There are multiple stirring blades, each fixedly connected to the drive shaft and located on the outside of the drive shaft. There are multiple connecting plates, each connected to the stirring blade and located on top of the stirring blade. There are two spiral frames, each fixedly connected to the connecting plate and located between the connecting plates. The scraping assembly is connected to the drive shaft.

2. The special stirring paddle for preventing DL-malate crystallization as described in claim 1, characterized in that, The stirring assembly also includes multiple fixing bolts, each of which is threadedly connected to the stirring blade and passes through the stirring blade and the connecting plate.

3. The special stirring paddle for preventing DL-malate crystallization as described in claim 2, characterized in that, The stirring assembly further includes a rotating base and intermediate blades. The rotating base is fixedly connected to the drive shaft and located in the middle of the stirring blades. There are two intermediate blades, which are fixedly connected to the rotating base and located on the outer side of the rotating base.

4. The special stirring paddle for preventing DL-malate crystallization as described in claim 3, characterized in that, The scraping assembly includes a scraping seat and a support frame. There are two scraping seats, which are fixedly connected to the drive shaft and located on the outside of the scraping seats. There are multiple support frames, which are fixedly connected to the scraping seats and located on the outside of the scraping seats.

5. The special stirring paddle for preventing DL-malate crystallization as described in claim 4, characterized in that, The scraping assembly also includes two scraper blades, which are fixedly connected to the support frame and located between the support frame.

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