Vacuum dryer with stirring structure for extracting casing heparin sodium

Abstract

The utility model discloses a vacuum dryer with a stirring structure for extracting casing heparin sodium, and belongs to the field of casing heparin sodium extraction. The vacuum drying machine with the stirring structure for extracting the casing heparin sodium comprises an inner processing barrel, connecting blocks are arranged on the two sides of the upper end in the inner processing barrel, a flow dividing pipe is arranged between the two connecting blocks, and a stirring paddle is transversely arranged at the circle center position in the inner processing barrel. The rake type vacuum dryer solves the problem that when an existing rake type vacuum dryer is started and used for drying input materials, the contact area between heat and the materials is limited by independently adding an annular pipe and a communicating pipe, and the vacuum drying efficiency is reduced. After the stirring paddle drives the extending piece to rotate and stir materials in the inner processing barrel, the materials can actively make contact with the heating flow dividing pipe due to rotation of the stirring paddle, and the flow dividing pipe makes contact with the humid materials at high frequency.

Description

Technical Field

[0001] This utility model relates to the field of sodium heparin extraction, specifically a vacuum dryer with a stirring structure for sodium heparin extraction. Background Technology

[0002] The vacuum dryer for extracting sodium heparin from animal casings is a specialized device for extracting sodium heparin from animal casings. Sodium heparin is an important anticoagulant widely used in the medical field. This device uses vacuum drying technology to dry a solution containing sodium heparin under low temperature and low pressure to remove moisture and other volatile components, thereby obtaining high-purity sodium heparin powder. The vacuum dryer is used to create a low-pressure environment and provide the necessary heat to accelerate the drying process. This equipment is characterized by high efficiency, energy saving, and environmental protection, and can significantly improve the extraction efficiency and product quality of sodium heparin.

[0003] Chinese Patent Publication No. CN213020747U discloses a rake-type vacuum dryer, including a base plate, a rake-type stirring structure, and a drying structure. The inner arc wall of the outer drying barrel is provided with evenly distributed connecting blocks, and the inner sides of the connecting blocks are fixedly connected to the outer arc surface of the inner drying barrel. The feed pipe provided at the feed inlet on the outer arc surface of the inner drying barrel passes through the outer arc surface of the outer drying barrel and extends to the outside of the outer drying barrel. The discharge pipe provided at the discharge outlet on the outer arc surface of the inner drying barrel passes through the outer arc surface of the outer drying barrel and extends to the outside of the outer drying barrel. This vacuum dryer can make the material heat evenly, ensure the drying quality, and further increase the contact area between hot air and material, thereby improving the drying efficiency.

[0004] When the rake-type vacuum dryer of the above patent is started and the input material is dried, the increase in the contact area between heat and material by adding only annular pipe and connecting pipe is relatively limited, resulting in a decrease in the efficiency of vacuum drying. Utility Model Content

[0005] The purpose of this invention is to provide a vacuum dryer with a stirring structure for extracting sodium heparin from casings. After the stirring paddle drives the extension plate to rotate and stir the material inside the inner processing cylinder, the material will actively come into contact with the heated distribution tube due to the rotation of the stirring paddle, so that the distribution tube comes into contact with the moist material at a high frequency, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a vacuum dryer with a stirring structure for extracting sodium heparin from casings, comprising an inner processing cylinder, connecting blocks on both sides of the upper end of the inner processing cylinder, a diversion pipe between the two connecting blocks, and both ends of the diversion pipe being sealed to the connecting blocks, a stirring paddle horizontally arranged at the center position inside the inner processing cylinder, the stirring paddle being rotatably connected to the center position of the outer processing cylinder via a connecting shaft, and an extension plate arranged at the lower end of the stirring paddle facing the inner wall of the inner processing cylinder.

[0007] Preferably, one of the connecting blocks has a first input pipe at its upper end, and the other connecting block has a first discharge pipe at its upper end.

[0008] Preferably, the inner processing cylinder is wrapped with an outer processing cylinder, a second input pipe is provided at the lower end of one side of the outer processing cylinder, and a second discharge pipe is provided at the upper end of the other side of the outer processing cylinder.

[0009] Preferably, both the second discharge pipe and the second input pipe pass through the outer processing cylinder and extend between the outer processing cylinder and the inner processing cylinder.

[0010] Preferably, the rotation of the extension strip will not collide with the shunt tube.

[0011] Preferably, a three-way valve is sealed between the second input pipe and the first input pipe.

[0012] Preferably, the inner wall of the manifold is surrounded by a heat-conducting plate, and the heat-conducting plate is welded and fixed to the manifold.

[0013] Preferably, the rear end of the inner processing cylinder is sealed to the outer processing cylinder via an exhaust pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] In this invention, when heating and drying the material inside the inner processing cylinder, the agitator rotates around the connecting shaft after being output. This rotation agitates the material, improving the drying effect. Furthermore, when the rotating agitator drives the extension blades to agitate the material inside the inner processing cylinder, neither clockwise nor counterclockwise rotation of the connecting shaft will cause it to collide with the distribution tube. The alternating clockwise and counterclockwise rotation of the connecting shaft allows the material to move to the upper end of the distribution tube. The material's own weight causes it to fall and contact the heated distribution tube, actively forcing the material to contact the distribution tube, which further improves the drying efficiency of the material. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall external structure of this utility model;

[0017] Figure 2This is a schematic diagram of the internal structure of the outer processing cylinder of this utility model;

[0018] Figure 3 For the present utility model Figure 2 Enlarged view of a portion of region A in the middle;

[0019] Figure 4 This is a cross-sectional view showing the positional relationship of the extension piece of this utility model;

[0020] Figure 5 For the present utility model Figure 4 Enlarged view of a portion of region B in the middle.

[0021] In the diagram: 3. Outer machining cylinder; 4. First input pipe; 5. First discharge pipe; 6. Second discharge pipe; 7. Agitator; 8. Second input pipe; 9. Three-way valve; 10. Inner machining cylinder; 11. Connecting block; 12. Diverter pipe; 13. Heat-conducting plate; 14. Connecting shaft; 15. Extension plate; 16. Exhaust pipe. Detailed Implementation

[0022] The present invention will be further described below with reference to specific embodiments.

[0023] Example 1

[0024] like Figure 1 As shown, a vacuum dryer with a stirring structure for extracting sodium heparin from enteric coating in this embodiment includes an inner processing cylinder 10. Connecting blocks 11 are provided on both sides of the upper end of the inner processing cylinder 10. A diversion pipe 12 is provided between the two connecting blocks 11, and the two ends of the diversion pipe 12 are respectively sealed to the connecting blocks 11. After the heated gas is transmitted to the inside of the diversion pipe 12, it can come into contact with the stirred wet material, so as to dry it and complete the extraction of sodium heparin from enteric coating.

[0025] Among them, such as Figure 2 and Figure 3 As shown, one of the connecting blocks 11 has a first input pipe 4 at its upper end, and the other connecting block 11 has a first discharge pipe 5 at its upper end. The heated gas is transmitted through the first input pipe 4 into the inside of the diversion pipe 12 and is finally discharged through the first discharge pipe 5.

[0026] In addition, the outer processing cylinder 3 is wrapped around the inner processing cylinder 10. A second input pipe 8 is provided at the lower end of one side of the outer processing cylinder 3, and a second discharge pipe 6 is provided at the upper end of the other side of the outer processing cylinder 3. Both the second discharge pipe 6 and the second input pipe 8 pass through the outer processing cylinder 3 and extend to the space between the outer processing cylinder 3 and the inner processing cylinder 10. The high-temperature gas from the outside is transmitted to the space between the outer processing cylinder 3 and the inner processing cylinder 10 through the second input pipe 8, while the gas between the outer processing cylinder 3 and the inner processing cylinder 10 is discharged from the second discharge pipe 6. Heat flows into the equipment from multiple angles and positions, improving the drying efficiency of the material.

[0027] In order to allow the wet material to quickly come into contact with the heated shunt tube 12, an agitator 7 is horizontally arranged at the center of the inner processing cylinder 10. The agitator 7 is rotatably connected to the center of the outer processing cylinder 3 through a connecting shaft 14. The output of the motor to the connecting shaft 14 can drive the agitator 7 to rotate. The rotation of the agitator 7 can agitate the material inside the inner processing cylinder 10.

[0028] Among them, such as Figure 4 As shown, the lower end of the agitator 7 is provided with an extension plate 15 facing the inner wall of the inner processing cylinder 10. The rotation of the agitator 7 can synchronously drive the extension plate 15 to rotate. The extended plate 15 can actively drive the granular material to rotate around the connecting shaft 14 and move towards the diversion pipe 12.

[0029] In addition, the rotation of the extension plate 15 will not collide with the diversion tube 12. The rotation of the extension plate 15 will cause the material to fall on the surface of the diversion tube 12, actively making the material contact the heated diversion tube 12, and further improving the drying efficiency while stirring.

[0030] To facilitate gas diversion and transmission to the first input pipe 4 and the second input pipe 8, a three-way valve 9 is sealed between the second input pipe 8 and the first input pipe 4. After the gas drawn by the fan and heated in the heating box is connected to the three-way valve 9, the gas will be diverted and transmitted to both the first input pipe 4 and the second input pipe 8 simultaneously.

[0031] To improve the efficiency of heat transfer to the manifold 12, such as Figure 5 As shown, a heat-conducting plate 13 is arranged around the inner wall of the manifold 12, and the heat-conducting plate 13 is welded and fixed to the manifold 12. The high-temperature gas can quickly transfer heat to the surface of the manifold 12, which facilitates the transfer of heat to the surface of the damp material.

[0032] In order to facilitate the extraction of gas inside the inner processing cylinder 10 and make the inner processing cylinder 10 a vacuum state, the rear end of the inner processing cylinder 10 is sealed to the outer processing cylinder 3 through an exhaust pipe 16. The gas inside the inner processing cylinder 10 can be extracted through the exhaust pipe 16, so that the inner processing cylinder 10 is a vacuum state.

[0033] Working principle: When using the device to heat and dry the material, the material to be heated is fed into the inner processing cylinder 10 through the middle position of the upper end of the outer processing cylinder 3. The inner processing cylinder 10 is sealed, and the area inside the inner processing cylinder 10 is extracted through the exhaust pipe 16. The fan draws external gas into the heating chamber. After being heated in the heating chamber, the gas flows into the three-way valve 9 for diversion. The diverted gas moves simultaneously towards the first input pipe 4 and the second input pipe 8. The gas inside the first input pipe 4 is transmitted to the diversion pipe 12 through the connecting block 11. The gas inside the diversion pipe 12 is discharged from the first discharge pipe 5, and the gas transmitted inside the second input pipe 8 flows into the inner processing cylinder. The material is discharged between the inner processing cylinder 10 and the outer processing cylinder 3 and finally discharged through the second discharge pipe 6. The motor output drives the agitator 7, causing the agitator 7 to rotate around the connecting shaft 14. The connecting shaft 14 drives the material to rotate around the connecting shaft 14 through the extension plate 15. The material rotates and approaches the diversion pipe 12. The agitator 7 stops rotating after approaching the diversion pipe 12, causing the material driven by the extension plate 15 to fall due to its own weight. The material falls and contacts the diversion pipe 12. After contacting the diversion pipe 12, it falls again into the lower end of the inner processing cylinder 10. As the agitator 7 rotates clockwise and counterclockwise alternately, the material repeatedly contacts the diversion pipe 12, improving the drying efficiency.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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.

[0035] Although embodiments of the present 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 present invention.

Claims

1. A vacuum drier with a stirring structure for casing heparin sodium extraction, comprising an inner processing cylinder (10), characterized in that, Both sides of the inner processing cylinder (10) upper end are provided with connecting blocks (11), two connecting blocks (11) are provided with shunt pipe (12), and both ends of shunt pipe (12) are sealed with connecting block (11), the center position of the inner processing cylinder (10) is provided with stirring paddle (7) transversely, the center position of the outer processing cylinder (3) is connected with connecting shaft (14) rotationally, the lower end of the stirring paddle (7) is provided with extension piece (15) towards the inner wall of the inner processing cylinder (10).

2. The vacuum dryer with a stirring structure for casing heparin sodium extraction according to claim 1, characterized in that, The upper end of one of the connecting blocks (11) is provided with first input pipe (4), and the upper end of the other connecting block (11) is provided with first discharge pipe (5).

3. The vacuum dryer with a stirring structure for casing heparin sodium extraction according to claim 1, characterized in that, The outer part of the inner processing cylinder (10) is wrapped with outer processing cylinder (3), the lower end of one side of the outer processing cylinder (3) is provided with second input pipe (8), and the upper end of the other side of the outer processing cylinder (3) is provided with second discharge pipe (6).

4. The casing heparin sodium extraction vacuum dryer with stirring structure according to claim 3, characterized in that, The second discharge pipe (6) and the second input pipe (8) both penetrate the outer processing cylinder (3) and extend between the outer processing cylinder (3) and the inner processing cylinder (10).

5. The casing heparin sodium extraction vacuum dryer with stirring structure according to claim 4, characterized in that, The rotation of the extension piece (15) does not collide with the shunt pipe (12).

6. The vacuum dryer with a stirring structure for casing heparin sodium extraction according to claim 4, characterized in that, The second input pipe (8) and the first input pipe (4) are sealed with three-way valve (9).

7. The vacuum dryer with a stirring structure for casing heparin sodium extraction according to claim 1, characterized in that, The inner wall of the shunt pipe (12) is provided with heat conducting piece (13) around, and the heat conducting piece (13) is welded with the shunt pipe (12).

8. The casing heparin sodium extraction vacuum dryer with stirring structure according to claim 1, characterized in that, The rear end of the inner processing cylinder (10) is sealed with the outer processing cylinder (3) through exhaust pipe (16).

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