Stirring device with homogenizing function for preparing mesoporous bioactive glass

Abstract

The utility model belongs to the technical field of mesoporous bioactive glass preparation, and discloses a stirring device with a homogenizing function for mesoporous bioactive glass preparation, which comprises a stirring tank, a sealing cover is arranged at the top of the stirring tank, and a stirring shaft penetrates through the sealing cover. The stirring shaft in the stirring tank is respectively provided with a frame type paddle and a turbine type paddle, the stirring shaft above the sealing cover is connected with a stirring driving assembly, the stirring shaft is connected with a shaft body cooling assembly, the shaft body cooling assembly comprises a cooling channel formed in the stirring shaft, and the cooling channel is communicated with the stirring driving assembly. The two ends of the cooling channel are connected with a top rotating joint and a bottom rotating joint respectively, and the top rotating joint is connected with a water guide pump through a pipeline, so that cold water penetrates through the cooling channel in the stirring shaft to absorb heat generated by long-time high rotation of the stirring shaft, and deformation of the stirring shaft due to overheating is avoided; the stability of the stirring system is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mesoporous biological active glass preparation technical field, specifically a kind of mesoporous biological active glass preparation with homogenization function stirring device. BACKGROUND

[0002] Mesoporous biological active glass is a kind of biomaterial with special performance and extensive application prospect, has regular and ordered mesoporous channel, pore size is usually in the range of 2-50 nanometer, this mesoporous structure makes material have extremely large specific surface area, provides sufficient space for cell adhesion, proliferation and biological active molecule loading, for example, just like the apartment with numerous micro "room", cell and molecule can find a place to live in these "room", and then various biochemical reactions occur.

[0003] In mesoporous biological active glass preparation, stirring is an important process, and stirring needs stirring device, and stirring device is generally composed of stirring tank, stirring system, temperature control system, feeding and discharging system, wherein, the stirring shaft in the stirring system will be overheated in long time high-speed stirring process, and the shaft body will be overheated and deformed in serious case, to affect the stability and service life of the stirring system.

[0004] Therefore, aiming at the above problems, a kind of mesoporous biological active glass preparation with homogenization function stirring device is provided. INVENTION CONTENTS

[0005] To solve the problems in the above background art, the utility model provides a kind of mesoporous biological active glass preparation with homogenization function stirring device, with the advantages that the shaft body of stirring shaft is cooled to avoid overheating deformation of shaft body in long time high-speed stirring process.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of mesoporous biological active glass preparation with homogenization function stirring device, including stirring tank, the top of the stirring tank is equipped with sealing cover, the sealing cover is penetrated with stirring shaft, the stirring shaft in the stirring tank is respectively equipped with frame paddle and turbine paddle, the stirring shaft above the sealing cover is connected with stirring drive assembly, and the stirring shaft is connected with shaft cooling assembly;

[0007] The shaft cooling assembly includes cooling channel opened in the stirring shaft, the both ends of the cooling channel are respectively connected with top rotary joint and bottom rotary joint, the top rotary joint is connected with water guide pump by pipeline, the inlet of the water guide pump is connected with water inlet pipe, the water inlet pipe is connected with external water source, the bottom rotary joint is connected with lead-out pipe, and the end of the lead-out pipe penetrates the stirring tank.

[0008] Preferably, a discharge port is arranged at the center of the bottom of the stirring tank, and a plurality of support legs are fixedly arranged at the edge of the bottom of the stirring tank.

[0009] Preferably, the stirring tank is composed of a high borosilicate glass inner layer and a stainless steel outer layer, and a heating and cooling unit is arranged between the high borosilicate glass inner layer and the stainless steel outer layer.

[0010] Preferably, an inner wall of the stainless steel outer layer is provided with a heat insulation layer, and an observation window is arranged on the stirring tank.

[0011] Preferably, a first feeding port and a second feeding port are respectively arranged on the sealing cover.

[0012] Preferably, the stirring driving assembly comprises a driven gear fixedly connected with the stirring shaft, the driven gear is engaged with a driving gear, and the driving gear is connected with a stirring motor through a motor shaft.

[0013] Compared with the prior art, the stirring tank has the following beneficial effects:

[0014] 1、The shaft cooling assembly is arranged, cold water passes through the cooling channel in the stirring shaft to absorb heat generated by the stirring shaft due to long-time high-speed rotation, deformation of the stirring shaft caused by overheating is avoided, and the stability of the stirring system is ensured.

[0015] 2、The frame type paddle and the turbine type paddle are arranged, the frame type paddle is used in the upper layer, a large-area stirring range of the frame type paddle can quickly scatter material lumps, and raw materials are preliminarily mixed, the turbine type paddle is used in the lower layer, and the turbine type paddle can generate strong radial flow and axial flow when rotating at high speed, so that materials are fully sheared and refined, uniform dispersion of components is promoted, and the homogeneity of the mesoporous bioactive glass precursor solution is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the utility model;

[0017] Figure 2 It is a sectional structure schematic view of the stirring tank of the utility model;

[0018] Figure 3 It is a structure schematic view of another angle of the utility model;

[0019] Figure 4 It is a structure schematic view of the stirring driving assembly of the utility model;

[0020] Figure 5 It is a structure schematic view of the stirring shaft of the utility model.

[0021] In the drawing: 1, stirring tank; 101, high borosilicate glass inner layer; 102, stainless steel outer layer; 103, heat insulation layer;

[0022] 2. Sealing cap; 3. Stirring shaft; 4. Frame-type impeller; 5. Turbine-type impeller;

[0023] 6. Stirring drive assembly; 601. Driven gear; 602. Driven gear; 603. Stirring motor;

[0024] 7. Shaft cooling assembly; 701. Cooling channel; 702. Top rotary joint; 703. Bottom rotary joint; 704. Water pump; 705. Water inlet pipe; 706. Water outlet pipe;

[0025] 8. Discharge port; 9. Support leg; 10. Observation window; 11. First feed port; 12. Second feed port. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figures 1 to 5 As shown, this utility model provides a stirring device for preparing mesoporous bioactive glass with homogenization function, including a stirring tank 1, a sealing cover 2 on the top of the stirring tank 1, a stirring shaft 3 passing through the sealing cover 2, and a mechanical seal between the stirring shaft 3 and the sealing cover 2 to eliminate the risk of material leakage. The stirring shaft 3 in the stirring tank 1 is equipped with a frame-type blade 4 and a turbine-type blade 5 respectively. The upper layer uses the frame-type blade 4, whose large stirring range can quickly break up material clumps and allow the raw materials to be initially mixed. The lower layer uses the turbine-type blade 5, which can generate strong radial and axial flow when rotating at high speed, fully shearing and refining the material, promoting the uniform dispersion of each component, and ensuring the homogeneity of the mesoporous bioactive glass precursor solution. The blade material is made of wear-resistant and chemically corrosion-resistant titanium alloy. The stirring shaft 3 above the sealing cover 2 is connected to a stirring drive assembly 6, and the stirring shaft 3 is connected to a shaft cooling assembly 7.

[0028] The shaft cooling assembly 7 comprises a cooling channel 701 arranged in the stirring shaft 3, both ends of the cooling channel 701 are connected with a top rotary joint 702 and a bottom rotary joint 703 respectively, the top rotary joint 702 is connected with a water guide pump 704 through a pipeline, the inlet of the water guide pump 704 is connected with a water inlet pipe 705, the water inlet pipe 705 is connected with an external water source, the bottom rotary joint 703 is connected with a water outlet pipe 706, and the end of the water outlet pipe 706 penetrates the stirring tank 1, so that the cold water passes through the cooling channel 701 in the stirring shaft 3 to absorb the heat generated by the stirring shaft 3 due to long-time high-speed rotation, the deformation of the stirring shaft 3 caused by overheating is avoided, and the stability of the stirring system is ensured.

[0029] Specifically, a discharge port 8 is arranged at the bottom center position of the stirring tank 1, the bottom discharge port 8 is matched with an electric ball valve, can be remotely controlled to be opened and closed, can stably control the flow rate during discharging, realizes uniform speed discharging, is tightly closed after discharging is completed, avoids dripping of residual materials, and a plurality of support legs 9 are fixedly arranged at the bottom edge position of the stirring tank 1.

[0030] Further, the stirring tank 1 is composed of a high borosilicate glass inner layer 101 and a stainless steel outer layer 102, a heating and cooling unit is arranged between the high borosilicate glass inner layer 101 and the stainless steel outer layer 102, based on a jacket design, an electric heating wire is arranged for temperature rise, when cooling is needed, a circulating water refrigeration system in the jacket is rapidly started to realize bidirectional temperature control, the temperature control range is set to 5-95 DEG C, and various temperature requirements during preparation of the mesoporous bioactive glass sol-gel method are met.

[0031] Still further, an inner wall of the stainless steel outer layer 102 is provided with a heat preservation and insulation layer 103, and an observation window 10 is arranged on the stirring tank 1.

[0032] It is worth noting that the sealing cover 2 is respectively provided with a first feeding port 11 and a second feeding port 12, a plurality of feeding ports are arranged on the sealing cover 2, a quick connection type sealing joint is adopted, various raw material conveying pipelines are conveniently connected, and each feeding port is provided with a micro metering pump, so that the feeding amount of different raw materials such as a silicon source and a calcium source can be accurately controlled, the error is not more than ±1%, and a foundation for preparing the mesoporous bioactive glass with accurate components is laid.

[0033] It is worth noting that the stirring driving assembly 6 comprises a driven gear 601 fixedly connected with the stirring shaft 3, the driven gear 601 is engagedly connected with a driving gear 602, and the driving gear 602 is connected with a stirring motor 603 through a motor shaft.

[0034] Among them, the stirring motor 603 and the water guide pump 704 are prior art, and will not be repeated; meanwhile, the utility model also comprises a power supply, a controller and a switch, which are not the main technical points of the patent, and will not be repeated.

[0035] Working principle and process: the raw materials are injected into the stirring tank 1 through the first feeding port 11 and the second feeding port 12, the stirring motor 603 of the stirring driving assembly 6 is started, then the driving gear 601 is driven to rotate by the driving gear 602, then the stirring shaft 3 drives the frame paddle 4 and the turbine paddle 5 to rotate, the frame paddle 4 is used in the upper layer, the large-area stirring range thereof can quickly break up the material lump, so that the raw materials are preliminarily mixed, the turbine paddle 5 is used in the lower layer, and when rotating at high speed, the turbine paddle 5 can generate strong radial flow and axial flow to finely shear and refine the materials, so that the components are uniformly dispersed, the homogeneity of the mesoporous bioactive glass precursor solution is ensured, the water pump 704 of the shaft cooling assembly 7 is started, cooling water is guided into the cooling channel 701 in the stirring shaft 3 through the water inlet pipe 705, the water pump 704 and the top rotary joint 702, then is discharged through the bottom rotary joint 703 and the discharge pipe 706, so as to absorb the heat generated by the stirring shaft 3 due to long-time high-speed rotation, avoid deformation of the stirring shaft 3 due to overheating, and ensure the stability of the stirring system, based on the jacket design, the electric heating wire is arranged for heating, when cooling is required, the circulating water refrigeration system in the jacket is quickly started to realize bidirectional temperature control, and the temperature control range is set to 5-95 DEG C, which meets various temperature requirements in the sol-gel method for preparing mesoporous bioactive glass.

[0036] It should be noted that the relative terms such as first and second, etc. are used herein only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0037] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A stirring device for preparing mesoporous bioactive glass having homogenization function, comprising a stirring tank (1), characterized in that: The top of the stirring tank (1) is provided with a sealing cover (2), the sealing cover (2) is penetrated by a stirring shaft (3), the stirring shaft (3) in the stirring tank (1) is respectively provided with a frame paddle (4) and a turbine paddle (5), the stirring shaft (3) above the sealing cover (2) is connected with a stirring driving assembly (6), and the stirring shaft (3) is connected with a shaft cooling assembly (7). The shaft cooling assembly (7) comprises a cooling channel (701) formed in the stirring shaft (3), both ends of the cooling channel (701) are respectively connected with a top rotary joint (702) and a bottom rotary joint (703), the top rotary joint (702) is connected with a water guide pump (704) through a pipeline, the water guide pump (704) is connected with an inlet pipe (705), the inlet pipe (705) is connected with an external water source, and the bottom rotary joint (703) is connected with a discharge pipe (706), and the end of the discharge pipe (706) penetrates the stirring tank (1).

2. The stirring device for preparing mesoporous bioactive glass with homogenization function according to claim 1, characterized in that: The bottom center of the stirring tank (1) is provided with a discharge port (8), and the bottom edge of the stirring tank (1) is fixedly provided with a plurality of support legs (9) which are uniformly distributed.

3. The stirring device for preparing mesoporous bioactive glass with homogenization function according to claim 1, characterized in that: The stirring tank (1) is composed of a high borosilicate glass inner layer (101) and a stainless steel outer layer (102), and a heating and cooling unit is arranged between the high borosilicate glass inner layer (101) and the stainless steel outer layer (102).

4. The stirring device for preparing mesoporous bioactive glass with homogenization function according to claim 3, characterized in that: The inner wall of the stainless steel outer layer (102) is provided with a heat preservation and insulation layer (103), and the stirring tank (1) is provided with an observation window (10).

5. The stirring device for preparing mesoporous bioactive glass with homogenization function according to claim 1, characterized in that: The sealing cover (2) is respectively provided with a first feeding port (11) and a second feeding port (12).

6. The stirring device for preparing mesoporous bioactive glass with homogenization function according to claim 1, characterized in that: The stirring driving assembly (6) comprises a driven gear (601) fixedly connected with the stirring shaft (3), the driven gear (601) is connected with a driving gear (602) in a meshing mode, and the driving gear (602) is connected with a stirring motor (603) through a motor shaft.

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