Method for uniformly mixing materials

Abstract

The invention relates to a material uniform mixing method, and relates to the technical field of material uniform mixing. The material uniform mixing method is applied to a material uniform mixing device, the material uniform mixing device comprises a stirring barrel, a stirrer and a height adjuster, the height adjuster is arranged on the top of the stirring barrel, the stirrer is arranged on the height adjuster, and the height adjuster is arranged on the stirring barrel. And the height position of the stirrer in the stirring barrel is controlled through the height adjuster. According to the method for uniformly mixing the materials, the stirrer can be used for treating the settled gel layer by layer by continuously lowering the stirrer, so that each layer of materials can be fully stirred, and the mixing uniformity of the whole materials is improved; by judging the difference value between the first detection value and the second detection value, the material mixing effect can reach the standard, the final material mixing uniformity is guaranteed, and the reliability and efficiency of subsequent experiment results are guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of material mixing, and in particular to a method for material mixing. Background Art

[0002] Sepharose 6FF gel is a gel filtration filler formed by cross-linking 6% agarose. It has good physical stability and chromatographic quality. Its separation range is generally biological macromolecules with molecular weights of 0.01MD to 1MD, such as proteins, polysaccharides, nucleic acids, etc. It can effectively separate and purify biological macromolecules according to their size differences.

[0003] A uniform gel suspension is prepared by evenly stirring Sepharose 6FF gel and buffer. The stirring process can eliminate gel agglomeration or local uneven concentration, so that the gel particles are evenly distributed in the buffer to form a uniform column bed, ensure uniform liquid flow, improve resolution, ensure recovery rate, enhance experimental reproducibility, improve chromatography efficiency, and facilitate adjustment of gel concentration and operational convenience, thereby laying a good foundation for subsequent separation and purification work.

[0004] However, currently, the process of stirring Sepharose 6FF gel with buffer is mostly done manually. Manual stirring has problems such as non-uniformity, low efficiency, high labor intensity, contamination risk and poor repeatability when preparing Sepharose 6FF gel suspension, which will lead to poor stirring effect of Sepharose 6FF gel and affect the reliability and efficiency of subsequent experimental results. Summary of the invention

[0005] In order to solve or partially solve the problems existing in the related art, the present application provides a method for mixing materials, which can evenly stir Sepharose 6FF gel and buffer solution, ensure the stirring effect of Sepharose 6FF gel, and ensure the reliability and efficiency of subsequent experimental results.

[0006] The present application discloses a material mixing method, which is applied to a material mixing device, the material mixing device comprising: a mixing barrel, an agitator and a height adjuster, the height adjuster being arranged and installed on the top of the mixing barrel, the agitator being arranged and installed on the height adjuster, and the height position of the agitator inside the mixing barrel being controlled by the height adjuster;

[0007] The method comprises the following steps:

[0008] Step 1: After the material is added into the stirring barrel, the stirrer is adjusted to a first height position by a height adjuster, and then the stirrer is controlled to start stirring, and after the stirrer starts stirring for at least 3 minutes, the stirrer is controlled to stop, wherein the first height position is the height position of the surface of the precipitated gel in the stirring barrel;

[0009] Step 2: After the stirrer is stopped, the height of the stirrer is lowered by the height adjuster, and then the stirrer is started to stir. After the stirrer starts stirring for at least 3 minutes, the stirrer is stopped;

[0010] Step 3: Repeat the operation in step 2, continuously lowering the height of the agitator and controlling the stirring until the agitator is adjusted to a second height position. After the agitator starts stirring for at least 3 minutes, control the agitator to stop and complete the mixing operation of the materials, wherein the second height position is a height position at least 5 cm from the bottom of the stirring barrel.

[0011] Optionally, in some embodiments of the present application:

[0012] The wall material of the mixing barrel is transparent glass;

[0013] The material mixing device also includes: a first laser and a second laser, both of which are laser diffuse reflection sensors, and the first laser and the second laser are arranged on the side wall of the mixing barrel to detect the mixing condition of the materials in the mixing barrel;

[0014] The step 3 specifically includes:

[0015] Repeat the operation of step 2, continuously adjust the height of the stirrer to lower and control stirring, until the stirrer is adjusted to a second height position, and the stirrer is controlled to start stirring;

[0016] The first laser and the second laser are controlled to perform detection to obtain a first detection value and a second detection value; the difference between the first detection value and the second detection value is determined, and if the difference between the first detection value and the second detection value meets a preset difference range, the agitator is controlled to stop to complete the mixing operation of the materials.

[0017] Optionally, in some embodiments of the present application:

[0018] The first laser is installed at a position where the liquid level of the material in the mixing barrel is 80% of the height;

[0019] The second laser is installed at a position where the material level in the mixing barrel is 15% of the height.

[0020] Optionally, in some embodiments of the present application:

[0021] A flange is provided on the top of the mixing barrel;

[0022] The height adjuster comprises: a first cover plate, a second cover plate and a support rod;

[0023] The support rods are provided with at least three, and the support rods are fixedly mounted on the top flange of the mixing barrel through internal and external thread extension rods;

[0024] The first cover plate is provided with a linear bearing, the number of which corresponds to the number of the support rods, the support rods pass through the linear bearings and are connected and installed with the first cover plate, and the linear bearings are locking linear bearings with clamping handles to achieve height adjustment of the first cover plate on the support rods;

[0025] The second cover plate is provided with linear bearings, the number of which corresponds to the number of the support rods, the support rods pass through the linear bearings and are connected and installed with the second cover plate, and the linear bearings are locking linear bearings with clamping handles to achieve height adjustment of the second cover plate on the support rods.

[0026] Optionally, in some embodiments of the present application:

[0027] A first outer spherical bearing seat is installed at the center of the first cover plate, and a second outer spherical bearing seat is installed at the center of the second cover plate;

[0028] The height between the first cover plate and the second cover plate is adjusted by the shaft locking bolts on the first outer spherical bearing seat and the second outer spherical bearing seat;

[0029] The agitator comprises: a speed regulating motor and a stirring rod, wherein the speed regulating motor is installed and connected to the stirring rod via a coupling, the speed regulating motor is arranged and installed on the top of the second cover plate, and the stirring rod passes through the first outer spherical bearing seat and the second outer spherical bearing seat and extends into the interior of the mixing barrel.

[0030] Optionally, in some embodiments of the present application:

[0031] The step 1 specifically includes:

[0032] After the material is added into the mixing barrel, the linear bearing is locked by the clamping handle on the height adjuster to adjust the agitator to the first height position, and then the agitator is started to stir, and the speed of the speed regulating motor is set to 85r / min. After the agitator starts stirring for 3 minutes, the agitator is stopped, wherein the first height position is the height position of the surface of the settled gel in the mixing barrel;

[0033] The step 2 specifically includes:

[0034] After stopping the agitator, lock the linear bearing with the clamping handle on the height adjuster to lower the height of the agitator by 20cm, then start the agitator to start stirring, and set the speed of the speed regulating motor to 85r / min. After the agitator starts stirring for 3 minutes, stop the agitator.

[0035] Optionally, in some embodiments of the present application:

[0036] The stirring rod is made of stainless steel and is wrapped with a polytetrafluoroethylene shell from 30 cm below the top of the stirring rod to the bottom of the stirring rod.

[0037] The stirring rod is provided with three groups of stirring impellers, which are made of polytetrafluoroethylene. One group of stirring impellers is fixedly installed on the top of the stirring rod, and the other two groups of stirring impellers are movably installed on the stirring rod through impeller holders. The spacing between each group of stirring impellers is not less than 15cm.

[0038] Optionally, in some embodiments of the present application:

[0039] The stirring impeller is provided with three stirring blades on its upper circumference. The stirring blades are inclined at an angle of 15° to the rotation direction and 5° to the horizontal plane. The blade surfaces of the stirring blades are arc-shaped.

[0040] Optionally, in some embodiments of the present application:

[0041] The support rod is provided with a scale value;

[0042] A limit block is arranged on the support rod to limit the lowest height position of the stirring rod.

[0043] Optionally, in some embodiments of the present application:

[0044] A movable support frame is installed at the bottom of the mixing barrel;

[0045] The bottom of the movable support frame is provided with universal wheels.

[0046] The technical solution provided by this application may have the following beneficial effects:

[0047] The material mixing method of the present application can make the gel material and the buffer solution fully contact and mix during the stirring process by stirring at a height position on the surface of the sedimentation gel, thereby improving the mixing efficiency; by continuously lowering the agitator, the agitator can process the sedimentation gel layer by layer, improve the fluidity of the material, and ensure that each layer of material can be fully stirred, thereby improving the mixing uniformity of the overall material; by judging the difference between the first detection value and the second detection value, the operator can effectively evaluate the mixing uniformity of the material to ensure that the material mixing effect meets the standard, ensure the mixing uniformity of the final material, and ensure the reliability and efficiency of subsequent experimental results.

[0048] The material mixing device of the present application is simple to operate and has a low manufacturing cost. By providing a locking linear bearing with a clamping handle, the operator can conveniently adjust the height position of the first cover plate and the second cover plate on the support rod to drive the agitator to adjust the height up and down, thereby realizing the height adjustment of the agitator rod inside the mixing barrel, so as to achieve better mixing of the material by adjusting the height of the agitator rod.

[0049] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0051] Figure 1 It is a structural schematic diagram of a method for mixing materials in an embodiment of the present application;

[0052] Figure 2 It is a structural schematic diagram of a device for mixing materials in an embodiment of the present application.

[0053] Figure markings: 1-mixing barrel, 101-flange, 102-movable support frame, 103-universal wheel, 2-agitator, 201-speed regulating motor, 202-mixing rod, 203-mixing impeller, 3-height adjuster, 301-first cover plate, 302-second cover plate, 303-support rod, 304-first outer spherical bearing seat, 305-second outer spherical bearing seat, 306-locking linear bearing with clamping handle, 307-limiting block, 4-first laser, 5-second laser. DETAILED DESCRIPTION

[0054] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0055] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0056] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0057] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0058] At present, the process of stirring Sepharose 6FF gel and buffer is mostly done manually. Manual stirring has problems such as unevenness, low efficiency, high labor intensity, contamination risk and poor repeatability when preparing Sepharose 6FF gel suspension. These problems will lead to poor stirring effect of Sepharose 6FF gel and affect the reliability and efficiency of subsequent experimental results.

[0059] In view of the above problems, the present application provides a method for mixing materials, which can evenly stir Sepharose 6FF gel and buffer solution, ensure the stirring effect of Sepharose 6FF gel, and ensure the reliability and efficiency of subsequent experimental results.

[0060] The technical solution of the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0061] Figure 1 It is a structural schematic diagram of a method for mixing materials in an embodiment of the present application;

[0062] Figure 2 It is a structural schematic diagram of a device for mixing materials in an embodiment of the present application.

[0063] See also Figure 1-2 A material mixing method is applied to a material mixing device, the material mixing device comprises: a mixing barrel 1, an agitator 2 and a height adjuster 3, the height adjuster 3 is arranged and installed on the top of the mixing barrel 1, the agitator 2 is arranged and installed on the height adjuster 3, and the height position of the agitator 2 inside the mixing barrel 1 is controlled by the height adjuster 3.

[0064] Specifically, a flange 101 is disposed on the top of the mixing barrel 1 , and the flange 101 is made of stainless steel.

[0065] The height adjuster 3 includes: a first cover plate 301, a second cover plate 302 and a support rod 303, and the first cover plate 301, the second cover plate 302 and the support rod 303 are all made of stainless steel.

[0066] The support rods 303 are provided in three pieces, and the support rods 303 are fixedly mounted on the flange 101 through internal and external thread extension rods.

[0067] The first cover plate 301 is provided with linear bearings, the number of which corresponds to the number of the support rods 303. The support rods 303 are connected and installed with the first cover plate 301 through the linear bearings, and the linear bearings are provided with clamping handles to lock the linear bearings 306, so as to realize the height adjustment of the first cover plate 301 on the support rods 303.

[0068] The second cover plate 302 is provided with linear bearings, the number of which corresponds to the number of the support rods 303. The support rods 303 are connected and installed with the second cover plate 302 through the linear bearings, and the linear bearings are locking linear bearings 306 with clamping handles to achieve height adjustment of the second cover plate 302 on the support rods 303.

[0069] Specifically: a first outer spherical bearing seat 304 is arranged and installed at the center of the first cover plate 301, and the first outer spherical bearing seat 304 is arranged and installed at the top center of the first cover plate 301; a second outer spherical bearing seat 305 is arranged and installed at the center of the second cover plate 302, and the second outer spherical bearing seat 305 is arranged and installed at the bottom center of the second cover plate 302.

[0070] The agitator 2 includes: a speed regulating motor 201 and a stirring rod 202. The speed regulating motor 201 is installed and connected to the stirring rod 202 via a coupling. The speed regulating motor 201 is arranged and installed on the top of the second cover plate 302. The stirring rod 202 passes through the first outer spherical bearing seat 304 and the second outer spherical bearing seat 305 and extends into the interior of the mixing barrel 1.

[0071] In this embodiment, by providing a locking linear bearing 306 with a clamping handle, the operator can conveniently adjust the height position of the first cover plate 301 and the second cover plate 302 on the support rod 303, so as to drive the agitator 2 to adjust the height up and down, thereby realizing the height adjustment of the stirring rod 202 inside the stirring barrel 1, so as to achieve better stirring of the material by adjusting the height of the stirring rod 202.

[0072] Specifically, the stirring rod 202 is made of stainless steel, and is wrapped with a polytetrafluoroethylene shell on the outside of the stirring rod 202 , and the wrapped range is 30 cm below the top of the stirring rod 202 to the bottom of the stirring rod 202 .

[0073] In this embodiment, the stirring rod 202 made of stainless steel can be well connected and installed with the speed regulating motor 201 through a coupling. At the same time, by wrapping the lower part of the stirring rod 202 with a polytetrafluoroethylene shell, it can effectively prevent the corrosion of the stirring rod 202 by the material during the stirring process, and can also prevent the stirring barrel 1 from being damaged when the stirring rod 202 collides with the stirring barrel 1.

[0074] The stirring rod 202 is provided with three groups of stirring impellers 203, which are made of polytetrafluoroethylene. One group of stirring impellers 203 is fixedly installed on the top of the stirring rod 202, and the other two groups of stirring impellers 203 are movably installed on the stirring rod 202 through impeller holders. The distance between each group of stirring impellers 203 is 18 cm.

[0075] In this embodiment, by adopting three sets of stirring impellers 203, the applicable stirring volume range of the stirrer 2 can be enhanced, and the overall stirring effect and efficiency can be improved.

[0076] Specifically, three stirring blades are arranged on the circumference of the stirring impeller 203 . The stirring blades are inclined at an angle of 15° to the rotation direction and 5° to the horizontal plane. The blade surfaces of the stirring blades are arc-shaped.

[0077] The shape of the stirring impeller 203 in this embodiment combines the characteristics of the folding-blade paddle stirrer 2 and the propulsion stirrer 2, which can increase the axial flow range and circulation volume, while achieving low blade tip speed and low shear force, further improving the stirring efficiency.

[0078] Specifically: the support rod 303 is provided with scale values.

[0079] A limit block 307 is installed on the support rod 303 to limit the lowest height position of the stirring rod 202 .

[0080] In this embodiment, by setting the scale value on the support rod 303, the operator can conveniently and accurately adjust the height of the stirring rod 202. At the same time, the setting of the limit block 307 can limit the descending height of the second cover plate 302, so as to effectively prevent the stirring rod 202 from being too low and avoid the stirring impeller 203 from directly contacting the bottom of the container of the stirring barrel 1.

[0081] Specifically, the wall material of the mixing barrel 1 is transparent glass.

[0082] The material mixing device also includes: a first laser 4 and a second laser 5, both of which are laser diffuse reflection sensors, which are arranged on the side wall of the mixing barrel 1 to detect the mixing conditions of the materials in the mixing barrel 1. The first laser 4 and the second laser 5 are respectively installed in an EPE cylinder, and the sensor probe passes through the EPE cylinder and protrudes 2mm from the cylinder surface, and then the EPE cylinder is inserted into a 20mm diameter stainless steel tube, the length of the stainless steel tube is 200mm, and the end of the EPE cylinder is flush with the tube mouth, and finally the stainless steel tube is installed on the bracket of the mixing barrel 1 perpendicular to the surface of the column glass barrel, and the tube mouth of the stainless steel tube is close to the barrel wall surface.

[0083] Specifically, the first laser 4 is installed at 80% of the liquid level of the material in the mixing barrel 1 ; the second laser 5 is installed at 15% of the liquid level of the material in the mixing barrel 1 .

[0084] In this embodiment, the barrel wall of the mixing barrel 1 is made of transparent glass, which allows the operator to intuitively observe the state of the material during the mixing process. At the same time, by setting the first laser 4 and the second laser 5, the laser diffuse reflection value of the upper and lower solution layers of the mixing barrel 1 can be detected, and the operator can monitor the mixing state of the materials in the mixing barrel.

[0085] Specifically, a movable support frame 102 is installed at the bottom of the mixing barrel 1 , and the movable support frame 102 is connected to the flange 101 through a stainless steel rod.

[0086] The bottom of the movable support frame 102 is provided with a universal wheel 103 .

[0087] In this embodiment, a movable support frame 102 is installed at the bottom of the mixing barrel 1, which can provide stable support and protection for the mixing barrel 1. At the same time, by equipping the bottom of the movable support frame 102 with universal wheels 103, it is convenient for operators to move the position of the entire mixing barrel 1 to meet different work requirements.

[0088] The method for mixing materials in the embodiment of the present application comprises the following steps:

[0089] S100: Step 1: After the material is added into the stirring barrel 1, the stirrer 2 is adjusted to a first height position through the height adjuster 3, and then the stirrer 2 is controlled to start stirring, and after the stirrer 2 starts stirring for at least 3 minutes, the stirrer 2 is controlled to stop, wherein the first height position is the height position of the surface of the precipitated gel in the stirring barrel 1;

[0090] Specifically: after the material is added into the mixing barrel 1, the agitator 2 is adjusted to a first height position by locking the linear bearing 306 with a clamping handle on the height adjuster 3, and then the agitator 2 is controlled to start stirring, and the speed of the speed regulating motor 201 is set to 85r / min. After the agitator 2 starts stirring for 3 minutes, the agitator 2 is controlled to stop, wherein the first height position is the height position of the surface of the settled gel in the mixing barrel 1.

[0091] In this embodiment, by stirring at a height position on the surface of the sedimentation gel, the gel material and the buffer solution can be fully contacted and mixed during the stirring process, thereby improving the mixing efficiency. At the same time, the generation of bubbles can be effectively reduced, thereby avoiding the influence of bubbles on the mixing effect.

[0092] S200: Step 2: After the stirrer 2 is stopped, the height of the stirrer 2 is adjusted to be lowered by the height adjuster 3, and then the stirrer 2 is controlled to start stirring, and after the stirrer 2 starts stirring for at least 3 minutes, the stirrer 2 is controlled to stop;

[0093] Specifically: after stopping the agitator 2, the height of the agitator 2 is adjusted to be lowered by 20 cm by locking the linear bearing 306 with a clamping handle on the height adjuster 3, and then the agitator 2 is controlled to start stirring, and the speed of the speed regulating motor 201 is set to 85r / min. After the agitator 2 starts stirring for 3 minutes, the agitator 2 is controlled to stop.

[0094] In this embodiment, by continuously lowering the stirrer 2, the stirrer 2 can process the settled gel layer by layer, improve the fluidity of the material, and ensure that each layer of the material can be fully stirred, thereby improving the mixing uniformity of the overall material. At the same time, by setting a reasonable stirring time, energy consumption and material waste caused by too long stirring time can be avoided, effectively ensuring the stirring efficiency.

[0095] S300: Step 3: Repeat the operation of step 2, continuously adjust and lower the height of the agitator 2 and control the stirring until the agitator 2 is adjusted to a second height position. After the agitator 2 starts stirring for at least 3 minutes, control the agitator 2 to stop and complete the mixing operation of the materials, wherein the second height position is a height position at least 5 cm from the bottom of the mixing barrel 1.

[0096] Specifically: repeat the operation of step 2, continuously adjust and lower the height of the stirrer 2 and control the stirring, until the stirrer 2 is adjusted to a height position of about 5 cm from the bottom of the stirring barrel 1, and control the stirrer 2 to start stirring;

[0097] Controlling the first laser 4 and the second laser 5 to perform detection to obtain a first detection value and a second detection value;

[0098] The difference between the first detection value and the second detection value is determined. If the difference between the first detection value and the second detection value meets a preset difference range, the agitator 2 is controlled to stop, thereby completing the mixing operation of the materials.

[0099] In this embodiment, by determining the difference between the first detection value and the second detection value, the operator can effectively evaluate the mixing uniformity of the material to ensure that the material mixing effect meets the standard and guarantee the mixing uniformity of the final material.

[0100] The technical solution of the embodiment of the present application includes the following beneficial effects:

[0101] The material mixing method of the present application can make the gel material and the buffer solution fully contact and mix during the stirring process by stirring at a height position on the surface of the sedimentation gel, thereby improving the mixing efficiency; by continuously lowering the agitator 2, the agitator 2 can process the sedimentation gel layer by layer, improve the fluidity of the material, and ensure that each layer of material can be fully stirred, thereby improving the mixing uniformity of the overall material; by judging the difference between the first detection value and the second detection value, the operator can effectively evaluate the mixing uniformity of the material to ensure that the material mixing effect meets the standard, ensure the mixing uniformity of the final material, and ensure the reliability and efficiency of subsequent experimental results.

[0102] The material mixing device of the present application is simple to operate and has low manufacturing cost. By setting a locking linear bearing 306 with a clamping handle, the operator can easily adjust the height position of the first cover plate 301 and the second cover plate 302 on the support rod 303 to drive the agitator 2 to adjust the height up and down, thereby realizing the height adjustment of the agitator rod 202 inside the mixing barrel 1, so as to achieve better mixing of the material by adjusting the height of the agitator rod 202.

[0103] Finally, it should be noted that, in this article, relationships such as first and second, etc. are used 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, include or any other variations are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0104] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A method for mixing materials, characterized in that: The method is applied to a device for mixing materials. The material mixing device comprises: a mixing barrel (1), a stirrer (2) and a height adjuster (3). The height adjuster (3) is installed on the top of the mixing barrel (1), and the stirrer (2) It is arranged to be mounted on the height adjuster (3) and the height position of the stirrer (2) inside the stirring barrel (1) is controlled by the height adjuster (3); The method comprises the following steps: Step 1: After the material is added to the stirring barrel (1), the stirrer (2) is adjusted to a first height position by a height adjuster (3), and then the stirrer (2) is controlled to start stirring, and after the stirrer (2) starts stirring for at least 3 minutes, the stirrer (2) is controlled to stop, wherein the first height position is the height position of the surface of the precipitated gel in the stirring barrel (1); Step 2: After the stirrer (2) is stopped, the height of the stirrer (2) is adjusted to be lowered by the height adjuster (3), and then the stirrer (2) is controlled to start stirring, and after the stirrer (2) has been started and stirred for at least 3 minutes, the stirrer (2) is controlled to stop; Step 3: Repeat the operation of step 2, continuously adjust and lower the height of the agitator (2) and control the stirring until the agitator (2) is adjusted to a second height position, and after the agitator (2) starts stirring for at least 3 minutes, control the agitator (2) to stop, and complete the mixing operation of the materials, wherein the second height position is a height position at least 5 cm from the bottom of the stirring barrel (1).

2. The material mixing method according to claim 1, characterized in that: The wall material of the mixing barrel (1) is transparent glass; The material mixing device further comprises: a first laser (4) and a second laser (5), wherein the first laser (4) and the second laser (5) are both laser diffuse reflection sensors, and the first laser (4) and the second laser (5) are arranged on the side wall of the mixing barrel (1) and are used to detect the mixing condition of the materials in the mixing barrel (1); The step 3 specifically includes: Repeat the operation of step 2, continuously adjust and lower the height of the stirrer (2) and control the stirring until the stirrer (2) is adjusted to a second height position, and the stirrer (2) is controlled to start stirring; Controlling the first laser (4) and the second laser (5) to perform detection to obtain a first detection value and a second detection value; The difference between the first detection value and the second detection value is determined. If the difference between the first detection value and the second detection value meets a preset difference range, the agitator (2) is controlled to stop, thereby completing the mixing operation of the materials.

3. The material mixing method according to claim 2, characterized in that: The first laser (4) is installed at a position where the material liquid level in the stirring barrel (1) is 80% of the height; The second laser (5) is installed at a position of 15% of the height of the material liquid level in the stirring barrel (1).

4. The material mixing method according to claim 1 or 3, characterized in that: A flange (101) is provided on the top of the mixing barrel (1); The height adjuster (3) comprises: a first cover plate (301), a second cover plate (302) and a support rod (303); At least three support rods (303) are provided, and the support rods (303) are fixedly mounted on the flange (101) via internal and external thread extension rods; The first cover plate (301) is provided with linear bearings, the number of which corresponds to the number of the support rods (303), the support rods (303) pass through the linear bearings and are connected and installed with the first cover plate (301), and the linear bearings are locking linear bearings (306) with clamping handles, so as to achieve height adjustment of the first cover plate (301) on the support rods (303); The second cover plate (302) is provided with linear bearings, the number of which corresponds to the number of the support rods (303), the support rods (303) pass through the linear bearings and are connected and installed with the second cover plate (302), and the linear bearings are locking linear bearings (306) with clamping handles to achieve height adjustment of the second cover plate (302) on the support rods (303).

5. The material mixing method according to claim 4, characterized in that: A first outer spherical bearing seat (304) is installed at the center of the first cover plate (301), and a second outer spherical bearing seat (305) is installed at the center of the second cover plate (302); The height between the first cover plate (301) and the second cover plate (302) is adjusted by shaft locking bolts on the first outer spherical bearing seat (304) and the second outer spherical bearing seat (305); The stirrer (2) comprises: a speed regulating motor (201) and a stirring rod (202); the speed regulating motor (201) is connected to the stirring rod (202) via a coupling; the speed regulating motor (201) is mounted on the top of the second cover plate (302); the stirring rod (202) passes through a first outer spherical bearing seat (304) and a second outer spherical bearing seat (305) and extends into the interior of the stirring barrel (1).

6. The material mixing method according to claim 5, characterized in that: The step 1 specifically includes: After the material is added to the stirring barrel (1), the stirrer (2) is adjusted to a first height position by locking the linear bearing (306) with a clamping handle on the height adjuster (3), and then the stirrer (2) is controlled to start stirring, and the speed of the speed regulating motor (201) is set to 85 r / min. After the stirrer (2) starts stirring for 3 minutes, the stirrer (2) is controlled to stop, wherein the first height position is the height position of the surface of the settled gel in the stirring barrel (1); The step 2 specifically includes: After the stirrer (2) is stopped, the height of the stirrer (2) is adjusted to be lowered by 20 cm by locking the linear bearing (306) with a clamping handle on the height adjuster (3), and then the stirrer (2) is controlled to start stirring, and the speed of the speed regulating motor (201) is set to 85 r / min. After the stirrer (2) starts stirring for 3 minutes, the stirrer (2) is controlled to stop.

7. The material mixing method according to claim 6, characterized in that: The stirring rod (202) is made of stainless steel, and a polytetrafluoroethylene shell is wrapped on the outside of the stirring rod (202), and the wrapped range is 30 cm below the top of the stirring rod (202) to the bottom of the stirring rod (202); The stirring rod (202) is provided with three groups of stirring impellers (203), and the stirring impellers (203) are made of polytetrafluoroethylene. One group of stirring impellers (203) is fixedly installed on the top of the stirring rod (202), and the other two groups of stirring impellers (203) are movably installed on the stirring rod (202) through impeller holders. The spacing between each group of stirring impellers (203) is not less than 15 cm.

8. The material mixing method according to claim 7, characterized in that: The stirring impeller (203) is provided with three stirring blades on its upper circumference. The stirring blades are inclined at an angle of 15° to the rotation direction and at an angle of 5° to the horizontal plane. The blade surfaces of the stirring blades are arc-shaped.

9. The material mixing method according to claim 8, characterized in that: The support rod (303) is provided with a scale value; The support rod (303) is provided with a limit block (307) to limit the lowest height position of the stirring rod (202).

10. The material mixing method according to claim 9, characterized in that: A movable support frame (102) is installed at the bottom of the mixing barrel (1); Universal wheels (103) are installed at the bottom of the movable support frame (102).

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