CN115414833A

CN115414833A - Preparation and defoaming device for viscous solution

Info

Publication number: CN115414833A
Application number: CN202211383389.3A
Authority: CN
Inventors: 杨国忠; 周泽荃; 杜菀人
Original assignee: Zhongke Weizhen Beijing Technology Co ltd
Current assignee: Zhongke Weizhen Beijing Technology Co ltd
Priority date: 2022-11-07
Filing date: 2022-11-07
Publication date: 2022-12-02
Anticipated expiration: 2042-11-07
Also published as: CN115414833B

Abstract

The invention relates to a preparation and defoaming device for viscous solution, which comprises a tank body, a stirring mechanism and a dispersion disc, wherein the stirring mechanism and the dispersion disc are arranged in the tank body, the stirring mechanism comprises a stirring frame and a stirring piece, the stirring frame comprises a first inner wall surface and a second inner wall surface, the first inner wall surface and the second inner wall surface are arranged oppositely, the end part of the stirring piece positioned on the first inner wall surface is gradually close to the first inner wall surface from top end to bottom end, the end part of the stirring piece positioned on the second inner wall surface is gradually far away from the second inner wall surface from top end to bottom end, the dispersion disc comprises a stirring transmission shaft and a dispersion tablet, the stirring transmission shaft is vertically arranged, and the dispersion tablets are arranged on the stirring transmission shaft at intervals. The invention can synchronously realize the liquid preparation and defoaming of the viscous solution and improve the defoaming efficiency.

Description

Preparation and defoaming device for viscous solution

Technical Field

The invention relates to the technical field of viscous solution preparation, in particular to a preparation and defoaming device for viscous solution.

Background

In the production process of viscous solution (such as latex, paint, water-based color paste, culture medium for fermentation, medical cataplasm matrix and the like) in the chemical field or the biomedical field, in order to ensure that solid materials are uniformly dispersed and dissolved in a solvent, the solution needs to be continuously and mechanically stirred, and in the process, a large amount of bubbles can be generated in a system, are limited by viscosity resistance, and are difficult to rise and break through buoyancy in a standing mode in a short time.

In order to obtain a foamless and uniform viscous solution quickly and to ensure the continuity of the production process, it is often necessary to take one or more defoaming measures. The existing rapid defoaming methods can be classified into physical defoaming methods and chemical defoaming methods according to the principle, wherein the chemical defoaming methods require additional surfactants to be added into the solution, which increases the burden of additional formula adjustment and production verification, and can introduce organic impurities into the formula. The physical defoaming method is generally realized by a heating method, an ultrasonic method and a centrifugal method, wherein the heating can influence the stability of certain components in the viscous solution, and the application range is narrow; the ultrasonic method is limited by the viscosity of the solution, so that the broken bubbles are difficult to float upwards by the buoyancy of the ultrasonic method, and the energy consumption is high; the centrifugal method has low efficiency and is not beneficial to the continuous production; the vacuum principle can cause the bubbles to expand excessively, and the normal operation of the equipment is influenced.

In summary, the defoaming process of viscous solutions is very complicated, and the prior art generally adopts two systems for the production of viscous solutions for chemical or biomedical use: the liquid preparation system and the defoaming system are also required to be provided for the production of the biomedical viscous solution, and the preparation and defoaming of the viscous solution are treated by the liquid preparation system and the defoaming system respectively, so that higher equipment cost is undoubtedly generated, and extra electricity cost, labor cost and time cost are also generated in the transfer process of the viscous solution. In addition, for biomedical viscous solutions, the transfer process from solution preparation to defoaming and then to sterilization is at more risk of contamination.

Disclosure of Invention

The invention aims to provide a device for preparing viscous solution and defoaming, which is used for synchronously realizing liquid preparation and defoaming of the viscous solution and improving defoaming efficiency.

The purpose of the present invention is achieved by the following technical means. According to the preparation and defoaming device for the viscous solution provided by the invention, the device comprises a tank body, a stirring mechanism and a dispersion disc, wherein the stirring mechanism and the dispersion disc are arranged in the tank body, the stirring mechanism comprises a stirring frame and a stirring piece, the stirring frame comprises a first inner wall surface and a second inner wall surface, the first inner wall surface and the second inner wall surface are arranged oppositely, the end part of the stirring piece positioned on the first inner wall surface is gradually close to the first inner wall surface from the top end to the bottom end, the end part of the stirring piece positioned on the second inner wall surface is gradually far away from the second inner wall surface from the top end to the bottom end, the dispersion disc comprises a stirring transmission shaft and a dispersion sheet, the stirring transmission shaft is vertically arranged, and the dispersion sheet is arranged on the stirring transmission shaft at intervals.

In some embodiments, a plurality of wall scraping pieces are provided on an outer wall surface of the stirring frame, and the wall scraping pieces are in pressing contact with an inner wall surface of the tank body.

In some embodiments, the stirring member is vertically disposed.

In some embodiments, the agitator drive shaft coincides with an axis of symmetry of the agitator frame.

In some embodiments, the outer wall surface of the tank is provided with a jacket for heating or cooling the tank.

In some embodiments, the stirring member is a stirring blade, and the inclination of the blade part of the stirring blade ranges from 5 ° to 45 °.

In some embodiments, the upper cover of the tank body is provided with a first interface for adding liquid materials and a second interface for reinforcing solid materials.

In some embodiments, the upper cover of the tank body is further provided with a third interface for inputting compressed air.

In some embodiments, the bottom of the tank body is provided with a discharge hole.

In some embodiments, the upper cover of the tank body is further provided with a fourth interface for inputting pure steam, a temperature probe and a pressure probe.

The beneficial effects of the invention at least comprise:

1. according to the invention, the stirring mechanism and the dispersion disc are arranged in the tank body, and the stirring mechanism and the dispersion disc can rapidly disperse, swell and dissolve viscous solution in the process of preparing the viscous solution under the driving of the driving mechanism respectively.

2. The stirring frame comprises a first inner wall surface and a second inner wall surface, the first inner wall surface and the second inner wall surface are arranged oppositely, the end part of the stirring piece positioned on the first inner wall surface is gradually close to the first inner wall surface from top to bottom, and the end part of the stirring piece positioned on the second inner wall surface is gradually far away from the second inner wall surface from top to bottom, so that multi-center vortexes in opposite directions can be formed in the viscous mixing system, the efficiency of forming homogenized viscous solution by the mixing system is greatly increased, the mixing system can be integrally turned, and bubbles positioned at the bottom of the mixing system are continuously delivered upwards; according to the invention, the dispersion disc comprises the stirring transmission shaft and the dispersing tablets, the stirring transmission shaft is vertically arranged, the dispersing tablets are arranged on the stirring transmission shaft at intervals, so that the dispersing tablets at the bottom drive the solution to form vortex to generate a centrifugal effect, and the dispersing tablets at the upper part and the stirring piece of the stirring mechanism play a shearing and foam breaking function at the same time, so that the solution cannot rise due to the rise of bubbles to impact the top of the tank body, and the mixed system is synchronously and efficiently defoamed in the homogenization process.

3. The jacket is arranged on the outer wall surface of the tank body and used for heating the tank body, and defoaming can be performed by combining heat in a defoaming process, so that defoaming efficiency is further improved.

4. According to the invention, the tank body is heated through the jacket, and compressed air is introduced into the tank body through the third interface, so that high-temperature and high-pressure sterilization can be carried out on the viscous solution.

5. According to the defoaming device, the vacuumizing port is formed in the upper cover of the tank body and is used for vacuumizing the tank body, so that the defoaming efficiency is further improved.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

Fig. 1 shows a schematic structural view of a defoaming apparatus and preparation for viscous solutions according to an embodiment of the present invention.

Detailed Description

To further illustrate the technical means of the present invention, the following detailed description of an embodiment of an apparatus for preparing a viscous solution and defoaming is provided in connection with the accompanying drawings and preferred embodiments. The following examples are merely for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the scope of protection of the present application is not limited thereby.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the term "comprising" as well as any variants thereof in the description and claims of the present application and in the description of the above figures. "plurality" means two or more.

In the description of the present invention, it is also to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, e.g. as a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1, the apparatus for preparing and defoaming a viscous solution according to the present invention includes a tank 1, a stirring mechanism 2, and a dispersion plate 3, wherein the inside of the tank 1 is vacuum, the stirring mechanism 2 and the dispersion plate 3 are disposed inside the tank 1, the stirring mechanism 2 has a stirring frame 21, a stirring member 22, and a wall scraping plate 23, the stirring frame 21 is configured as a frame structure, and is a frame formed by connecting a plurality of transmission rods 211 end to end, and in one or more embodiments, the stirring frame 21 is configured as a symmetrical structure. A plurality of scraping sheets 23 are fixedly arranged on the outer wall surface along the stirring frame 21, and the scraping sheets 23 are in contact with the inner wall surface of the tank body 1 in a pressing manner and are used for scraping off the viscous substances adhered to the inner wall of the tank body 1 so as to participate in the mixing of the system. In one or more embodiments, the scraping blade 23 is provided on both of the left and right outer wall surfaces of the agitator frame 21 that are opposed to each other. The stirring member 22 is configured in a sheet or plate shape and is vertically disposed on the inner wall surface of the stirring frame 21, and the stirring member 22 is preferably a stirring blade, and one end of the stirring blade away from the inner wall surface of the stirring frame 21 is a blade portion.

The stirring mechanism 2 further comprises a connecting portion 24, and the connecting portion 24 is disposed on the top of the stirring frame 21 and is fixedly connected to the stirring frame 21. Specifically, the transmission rod 211 located at the starting end of the agitator frame 21 and the transmission rod 211 located at the terminating end of the agitator frame 21 are both connected to the connection portion 24.

In one or more embodiments, the agitator frame 21 has a first inner wall surface and a second inner wall surface, the first inner wall surface and the second inner wall surface are symmetrical with respect to a symmetry axis of the agitator frame 21, and the plurality of agitating members 22 are disposed on the first inner wall surface and the second inner wall surface of the agitator frame 21 in a pair-wise opposite manner. The blade portion of the stirring blade located on the first inner wall surface of the stirring frame 21 gradually approaches the first inner wall surface from the top end to the bottom end, and the blade portion of the stirring blade located on the second inner wall surface of the stirring frame 21 gradually leaves the second inner wall surface from the top end to the bottom end. The inclination range of the angle of the blade part of the stirring blade is 5-45 degrees. The first driving mechanism (not shown) is connected to the stirring frame 21 through a connecting portion 24, and is configured to drive the stirring frame 21 to rotate, and the stirring frame 21 further drives the stirring member 22 and the scraping blade 23 to rotate. The stirring frame 21 and the stirring bar 22 of the frame structure are made of stainless steel, and the wiper blade 23 is made of polytetrafluoroethylene.

The dispersion plate 3 is used for mixing solid materials and liquid materials, and comprises a stirring transmission shaft 31 and dispersible tablets 32, wherein the stirring transmission shaft 31 is vertically arranged, the dispersible tablets 32 are arranged on the stirring transmission shaft 31 at intervals, and the stirring transmission shaft 31 is perpendicular to the dispersible tablets 32. In one or more embodiments, the dispersible tablet 32 is configured in a circular shape, and the center of the dispersible tablet 32 is located on the stirring transmission shaft 31. In one or more embodiments, the number of dispersible tablets 32 may be 2-5. A second driving mechanism (not shown) is connected to the stirring transmission shaft 31 for driving the stirring transmission shaft 31 to rotate, and the stirring transmission shaft 31 further drives each dispersible tablet 32 to rotate.

According to the viscous solution preparation and defoaming device, the stirring mechanism 2 and the dispersion disc 3 are arranged in the tank body 1, and the stirring mechanism 2 and the dispersion disc 3 can rapidly disperse, swell and dissolve viscous solution in the viscous solution preparation process under the driving of the driving mechanism respectively.

The invention also makes the stirring frame 21 include the first inner wall surface and the second inner wall surface, and the first inner wall surface and the second inner wall surface are arranged oppositely, the end of the stirring piece 22 on the first inner wall surface is gradually close to the first inner wall surface from top to bottom, and the end of the stirring piece 22 on the second inner wall surface is gradually far from the second inner wall surface from top to bottom, so that multi-center vortexes with opposite directions can be formed in the viscous mixing system, the efficiency of forming homogenized viscous solution by the mixing system is greatly increased, the mixing system can be integrally turned, bubbles at the bottom of the mixing system are continuously delivered upwards, the dispersion disc 3 includes the stirring transmission shaft 31 and the dispersion pieces 32, the stirring transmission shafts 31 are vertically arranged, the dispersion pieces 32 are arranged on the stirring transmission shaft 31 at intervals, so that the dispersion pieces 32 at the bottom drive the solution to form vortex to generate centrifugal effect, and the dispersion pieces 32 at the upper part and the stirring piece 22 of the stirring mechanism 2 simultaneously play a shearing and breaking function, thereby the liquid level of the solution can not rise to be flushed to the top of the tank body 1 due to the large expansion of bubbles, and the homogenization process can realize synchronous and efficient defoaming in the process of the mixing system.

In one or more embodiments, the agitator drive shaft 31 coincides with the axis of symmetry of the agitator frame 21. The top of the can body 1 is provided with an upper cover (not shown), and the connecting part 24 passes through the center of the upper cover of the can body 1 and is connected to a first driving mechanism, which can be a driving motor. The top of the stirring transmission shaft 31 also passes through the center of the connecting portion 24 and the upper cover of the can body 1 and is connected to the second driving mechanism. In one or more embodiments, the stirring mechanism 2 rotates at 10-500rpm. The rotating speed of the dispersion plate 3 is 2000-8000rpm.

In one or more embodiments, the upper cover of the tank 1 is provided with a first interface 11 for adding liquid material and a second interface 12 for reinforcing solid material.

In one or more embodiments, the upper cover of the tank 1 is further opened with a third port 13 for inputting compressed air. Compressed air is introduced into the tank body 1, so that the prepared high-viscosity solution can be extruded under pressure.

In one or more embodiments, the outer wall of the tank 1 is provided with a jacket 18. When a viscous solution with high temperature stability is produced, the tank body 1 can be heated by introducing hot water or industrial steam into the jacket 18, so that the viscosity of the viscous solution is further reduced, and the time for liquid preparation and defoaming is shortened. When the viscous solution which needs to be prepared at low temperature is produced, normal-temperature tap water or process cooling water can be introduced into the jacket 18 to cool the material.

In one or more embodiments, the upper cover of the tank 1 is further provided with a fourth port 14 for inputting pure steam, a temperature probe and a pressure probe. The viscous solution can be pasteurized by heating the can 1 through the jacket 18 and introducing pure steam into the interior of the can 1 through the fourth port 14. The viscous solution can be autoclaved by heating the can 1 through the jacket 18 and supplying compressed air into the can 1 through the third port 13. The solution in the tank body 1 can be monitored for the conditions of the sterilization process by the pressure probe and the temperature probe.

In one or more embodiments, the outer wall of the tank 1 is also provided with a viewing window 15 for monitoring the production process of the viscous solution.

In one or more embodiments, the upper lid of the can body 1 is also provided with a shower head 19, which can be used to clean the can body 1.

In one or more embodiments, the bottom of the tank body 1 is provided with a discharge hole 16. The upper cover of the can body 1 is also provided with a vacuum-pumping port 17 for vacuumizing the interior of the can body 1.

Illustratively, the method for preparing, sterilizing and defoaming the solution for the viscous solution preparation device comprises the following steps:

s1, sterilizing the tank body 1. All ports are closed to seal the tank 1, the fourth port 14 is opened to introduce pure steam into the tank 1, and the tank 1 is steam sterilized. It should be further noted that, in this step, the third port 13 can be opened simultaneously to perform the autoclaving on the tank 1.

S2, preparing a solution. A solvent for preparing the viscous solution, such as pure water, normal saline, reagent pure ethanol and the like, is put into the tank body 1 through the first connector 11, powder, such as pharmaceutic adjuvant cellulose, pigment for ink, stabilizer and the like, is put into the tank body 1 through the second connector 12, and the first connector 11 and the second connector 12 are closed, so that the tank body 1 is closed. The dispersion impeller 3 was started, and after stirring for 10 minutes, the dispersion impeller 3 was closed. The stirring mechanism 2 was turned on and stirred for 10 minutes. In this step, when a viscous solution having no thermal stability is stirred and prepared, the jacket 18 may be used to cool the tank 1. When the viscous solution with thermal stability is stirred and prepared, the jacket 18 can be opened to heat the tank body 1, so that the dispersion, swelling and dissolution processes of the solute are accelerated.

And S3, sterilizing the solution in the tank body 1. The tank body 1 is heated through the jacket 18, the third interface 13 is opened, compressed air is introduced into the tank body 1 to pressurize the interior of the tank body 1, the current temperature and pressure are maintained after the internal temperature reaches about 121 ℃, automatic pressure relief is performed according to a preset program, and the jacket 18 is opened to cool the tank body 1, so that the solution cooling process is accelerated. The temperature in the tank body 1 is stabilized at the preset temperature through the mixed transportation of the hot steam and the cooling water in the jacket 18. It should be noted that the temperature in the tank 1 can be controlled below 100 ℃ in this step to achieve pasteurization. This step may not be performed for viscous solution formulations that do not require sterilization or disinfection.

And S4, defoaming the viscous solution. The vacuumizing port 17, the stirring mechanism 2 and the dispersion disc 3 are opened, the inside of the tank body 1 is continuously stirred and vacuumized for 30 minutes, when no obvious large bubbles are observed in the solution through the observation window 15, the dispersion disc 3 is closed, and the stirring mechanism 2 continues to stir and is accompanied with vacuumizing. It should be noted that, in this step, for the viscous solution having thermal stability, the jacket 18 may be opened simultaneously to heat the can body 1, so that the defoaming process can be accelerated.

And S5, discharging the viscous solution. The vacuum port 17 is closed, and when the pressure in the tank 1 reaches the atmospheric pressure, the third port 13 and the discharge port 16 are opened, and the viscous solution is extruded by the compressed air.

S6, cleaning the tank body 1. The other ports except the first port 11 are closed, and a cleaning liquid (e.g., pure ethanol as a reagent, purified water, or an aqueous solution containing a surfactant) is introduced into the tank 1 through the first port 11. After the stirring mechanism 2 and the dispersion plate 3 are opened to continuously stir for 10 minutes, the first connector 11, the stirring mechanism 2 and the dispersion plate 3 are closed, the third connector 13 and the discharge port 16 are opened, and the cleaning solution is extruded by compressed air. It should be noted that step S6 may be repeated several times until the tank 1 is completely cleaned. The jacket 18 can also be used simultaneously during the cleaning process to achieve rapid cleaning by warming.

In the steps S2, S4, and S6, the rotation speed of the dispersion board 3 ranges from 2000rpm to 8000rpm, and the rotation speed of the stirring mechanism 2 ranges from 10rpm to 500rpm.

The defoaming device for preparing viscous solution can comprehensively integrate liquid preparation, defoaming, sterilization and self-cleaning and sterilization of the device in the production process of viscous solution, has the advantages of simple structure, simplicity and convenience in operation, wide application range, low cost and the like, can effectively reduce the production cost in production, and achieves the purposes of low carbon and environmental protection.

The previous description of the disclosed aspects is provided to enable any person skilled in the art to practice the present invention. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects without departing from the scope of the invention. Thus, the present invention is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a preparation and fire fighting equipment for viscous solution, its characterized in that, including a jar body, rabbling mechanism and dispersion impeller all set up in the inside of jar body, rabbling mechanism includes stirring frame and stirring piece, the stirring frame includes first internal face and second internal face, first internal face with the second internal face sets up relatively, is located on the first internal face the tip of stirring piece is close to gradually by top to end first internal face is located on the second internal face the tip of stirring piece is kept away from gradually by top to end second internal face, the dispersion impeller includes stirring transmission shaft and dispersion tablet, the vertical setting of stirring transmission shaft, the dispersion tablet set up at interval in on the stirring transmission shaft.

2. The apparatus for preparing and defoaming a viscous solution according to claim 1, wherein a plurality of scraping pieces are provided on an outer wall surface of the agitation frame, and the scraping pieces are in press-contact with an inner wall surface of the tank body.

3. The apparatus for the preparation and defoaming of viscous solutions of claim 1 wherein the stirring member is vertically disposed.

4. The apparatus of claim 1, wherein the stirring shaft coincides with an axis of symmetry of the stirring frame.

5. The apparatus for preparing and defoaming a viscous solution according to claim 1, wherein a jacket is provided on an outer wall surface of the tank body for heating or cooling the tank body.

6. The apparatus for preparing and defoaming viscous solutions according to claim 3, wherein the stirring member is a stirring blade, and the inclination of the blade part of the stirring blade is in the range of 5-45 °.

7. The apparatus of claim 1, wherein the top cover of the tank has a first port for filling liquid and a second port for reinforcing solid.

8. The apparatus of claim 1, wherein the top cover of the tank further defines a third port for inputting compressed air.

9. The apparatus for preparing and defoaming viscous solutions of claim 1, wherein the bottom of the tank is opened with a discharge port.

10. The apparatus for preparing and defoaming a viscous solution according to claim 1, wherein the upper cover of the tank body is further provided with a fourth port for inputting pure steam, a temperature probe and a pressure probe.