Slurry stirring device and casting machine

Abstract

The embodiment of the utility model provides a slurry stirring device and a casting machine, the slurry stirring device is provided with a tank body for containing slurry and a stirring shaft located in the tank body for stirring the slurry, the tank body is provided with a slurry chamber and a cooling chamber arranged around the slurry chamber, and stirring blades are arranged below the stirring shaft. The stirring blades are of a frame type structure and extend to the inner wall of the slurry chamber. Therefore, the stirring area is increased, the slurry is mixed more uniformly, the slurry is prevented from being volatilized, and the conversion rate of the slurry is improved.

Description

Technical Field

[0001] This application relates to the field of electromechanical engineering, and more particularly to a slurry mixing device and a casting machine. Background Technology

[0002] In modern chemical, building materials and other industries, mixing tanks are required for stirring, mixing and blending slurries. A mixing tank consists of a tank body, a tank cover, and an agitator. The agitator, also known as the agitator blade, is the core component of the mixing tank. In current technology, agitators typically consist of 2-4 straight or curved blades, which are rotated to stir and blend the slurry.

[0003] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of this application and facilitating understanding by those skilled in the art. It should not be assumed that these technical solutions are known to those skilled in the art simply because they have been described in the background section of this application. Utility Model Content

[0004] The inventors discovered that in existing slurry mixing tanks, agitators composed of blades are used to mix the slurry. However, due to the limited length of the blades and the fact that they can only be positioned at one end of the mixing shaft (e.g., at the bottom of the mixing shaft), the agitator has difficulty mixing the slurry near the inner wall and at the top of the mixing shaft. This results in poor uniform mixing of the slurry in the mixing tank, causing a large amount of waste slurry. Furthermore, the heat generated by the rotating blades raises the temperature of the slurry, making it more volatile and reducing the slurry conversion rate. In addition, when the rotation speed of the blades is too high, bubbles are easily generated in the slurry, reducing the quality of the output slurry.

[0005] To address at least one of the above-mentioned problems or other similar issues, embodiments of this application provide a slurry mixing device and a casting machine.

[0006] According to a first aspect of the present application, a slurry mixing device is provided, the slurry mixing device having a tank for holding slurry and a mixing shaft located in the tank for mixing the slurry, the tank having a slurry chamber and a cooling chamber arranged around the slurry chamber, and a mixing blade being disposed below the mixing shaft, the mixing blade having a frame structure and extending to the inner wall of the slurry chamber.

[0007] In some embodiments, a water inlet is provided on the side wall of the tank, and the water inlet is connected to the cooling chamber.

[0008] In some embodiments, the stirring blade is square-shaped, and the stirring shaft is coaxial with the axis of symmetry of the stirring blade.

[0009] In some embodiments, a discharge port is provided at the bottom of the tank, and the discharge port is in communication with the slurry chamber.

[0010] In some embodiments, the bottom of the tank is conical, and the discharge port is located at the top of the cone.

[0011] In some embodiments, a speed sensor for detecting the speed of the stirring shaft is provided on the outside of the tank.

[0012] In some embodiments, a speed deviation alarm connected to the speed sensor is also provided on the outside of the tank. When the speed sensor detects that the rotational speed of the stirring shaft is lower than a first threshold or higher than a second threshold, the speed deviation alarm will sound an alarm.

[0013] In some embodiments, a pneumatic motor connected to the stirring shaft is also provided outside the tank body, and the pneumatic motor controls the rotation of the stirring shaft;

[0014] A vacuum pump and an air inlet connected to the vacuum pump are also provided on the outside of the tank body; the vacuum pump is connected to the slurry chamber.

[0015] A control device and a display device are also provided on the outside of the tank. The control device is connected to the pneumatic motor and the air inlet to control the air intake of the pneumatic motor and the air inlet. The display device is connected to the control device and displays the information according to the control of the control device.

[0016] In some embodiments, the tank has a volume of 60 liters.

[0017] According to another aspect of the embodiments of this application, a casting machine is provided, the casting machine including the slurry mixing device described in the first aspect embodiment above.

[0018] One of the beneficial effects of this application embodiment is that by using a frame-structured stirring blade that extends to the inner wall of the slurry chamber, the stirring blade can stir most of the slurry in the tank when rotating, which enhances the uniform mixing effect of the slurry stirring device on the slurry, reduces the waste slurry generated during the stirring process, and improves the conversion rate of the slurry by setting a cooling chamber to cool the slurry in the slurry chamber and avoids the slurry temperature from rising and volatilizing.

[0019] Specific embodiments of this application are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of this application can be adopted. It should be understood that the embodiments of this application are not limited in scope. Within the spirit and scope of the appended claims, embodiments of this application include many changes, modifications, and equivalents.

[0020] Features described and / or illustrated for one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments.

[0021] It should be emphasized that the term "including / comprises" as used herein refers to the presence of a feature, whole, step, or component, but does not exclude the presence or addition of one or more other features, wholes, steps, or components. Attached Figure Description

[0022] The accompanying drawings, which form part of the specification, are used to provide a further understanding of the embodiments of this application and illustrate the implementation methods of this application, together with the textual description, to explain the principles of this application. Obviously, the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0023] Figure 1 This is a schematic diagram of a slurry mixing device according to an embodiment of this application;

[0024] Figure 2 This is another schematic diagram of the slurry mixing device according to an embodiment of this application;

[0025] Figure 3 This is a schematic diagram of the stirring blade according to an embodiment of this application;

[0026] Figure 4 This is a partial schematic diagram of a slurry mixing device according to an embodiment of this application. Detailed Implementation

[0027] Referring to the accompanying drawings, the foregoing and other features of this application will become apparent from the following description. Specific embodiments of this application are specifically disclosed in the description and drawings, illustrating partial implementations in which the principles of this application may be employed. It should be understood that this application is not limited to the described embodiments; rather, it includes all modifications, variations, and equivalents falling within the scope of the appended claims.

[0028] In the embodiments of this application, the terms "first," "second," "upper," "lower," etc., are used to distinguish different elements by their names, but do not indicate the spatial arrangement or temporal order of these elements, and these elements should not be limited by these terms. The term "and / or" includes any one or more of the terms listed in connection with the application and all combinations thereof. The terms "comprising," "including," "having," etc., refer to the presence of the stated features, elements, components, or assemblies, but do not exclude the presence or addition of one or more other features, elements, components, or assemblies.

[0029] In the embodiments of this application, the singular forms "a," "the," etc., may include the plural forms and should be broadly interpreted as "a kind" or "a class" rather than limited to the meaning of "an." Furthermore, the term "the" should be understood to include both the singular and plural forms unless the context explicitly indicates otherwise. Additionally, the term "according to" should be understood as "at least partially based on…," and the term "based on" should be understood as "at least partially based on…," unless the context explicitly indicates otherwise.

[0030] The embodiments of this application will now be described with reference to the accompanying drawings.

[0031] An embodiment of the first aspect.

[0032] An embodiment of the first aspect of this application provides a slurry mixing device.

[0033] Figure 1 This is a schematic diagram of a slurry mixing device according to an embodiment of this application. Figure 2 This is another schematic diagram of the slurry mixing device according to an embodiment of this application, showing the slurry mixing device from... Figure 1 The slurry mixing device is observed from a vertically upward direction.

[0034] like Figure 1 As shown, the slurry mixing device 10 has a tank 20 for holding slurry and a mixing shaft 30 located inside the tank 20 for mixing the slurry. The tank 20 has a slurry chamber 21 and a cooling chamber 22, as shown. Figure 2 As shown, the cooling chamber 22 is arranged around the slurry chamber 21.

[0035] like Figure 1 As shown, a stirring blade 31 is provided below the stirring shaft 30. The stirring blade 31 is frame-shaped and extends to the inner wall 23 of the slurry chamber 21.

[0036] According to the above embodiments, by setting the stirring blades in the slurry mixing device to a frame structure, the stirring blades can stir most of the slurry in the tank when rotating, which enhances the uniform mixing effect of the slurry mixing device on the slurry and reduces the waste slurry generated during the stirring process. In addition, by setting a cooling chamber around the slurry chamber, the slurry temperature rise and volatilization can be avoided, which improves the slurry conversion rate.

[0037] In this embodiment of the application, "below" of the stirring shaft refers to "below" in the direction of gravity, that is, "below" when the slurry stirring device is working.

[0038] In some embodiments, such as Figure 1 As shown, a water inlet 24 is provided on the side wall of the tank 20, and the water inlet 24 is connected to the cooling chamber 22.

[0039] The water inlet 24 can inject cold water into the cooling chamber 22, thereby reducing the temperature of the slurry inside the tank 20 through heat transfer. The cold water in the cooling chamber 22 can be at a fixed temperature, for example, 25 degrees Celsius, to ensure that the slurry inside the tank 20 maintains a fixed temperature. The temperature of the injected cold water can be set differently depending on the material of the slurry, and this application does not impose any restrictions.

[0040] According to the above embodiments, the slurry will not evaporate due to temperature rise during the stirring process, thereby improving the conversion rate of the slurry and avoiding waste of the slurry.

[0041] In the above embodiments, in at least one example, the tank 20 also has a water outlet (not shown in the figure), which is connected to the cooling chamber 22. Thus, the cold water flowing into the cooling chamber 22 can flow out from the water outlet, so that the cold water in the cooling chamber 22 can circulate, and the temperature in the cooling chamber 22 can be maintained at a fixed temperature, thereby achieving a better cooling effect.

[0042] Figure 3 This is a schematic diagram of a stirring blade according to an embodiment of this application.

[0043] In some embodiments, the stirring blade is square-shaped, and the axis of symmetry of the stirring blade and the stirring shaft are coaxial.

[0044] like Figure 1 and Figure 3 As shown, part 31(b) of the stirring blade 31 is rectangular, while another part 31(c) of the stirring blade 31 has other shapes, such as... Figure 3 The V-shape shown is not limited to this application. The axis of symmetry 31(a) of the stirring blade 31 and the axis of symmetry 30(a) of the stirring shaft 30 are coaxial, and the stirring blade 31 extends to the vicinity of the inner wall 23 of the slurry chamber 21.

[0045] According to the above embodiments, by setting the stirring blades as a frame structure and extending them to the inner wall of the slurry chamber, the stirring area of ​​the stirring blades is increased, which can take into account the slurry at the edge of the slurry chamber, making the slurry mix more uniform and reducing slurry waste.

[0046] In the above embodiments, such as Figure 1 and Figure 3 As shown, in order to fit the structure of the slurry chamber 21, only a part of the structure 31(b) of the stirring blade 31 is square. Alternatively, the entire stirring blade can be set to a square shape, or the shape of the stirring blade can be set to fit the structure of the slurry chamber according to different shapes of the slurry chamber. The stirring blade can increase the stirring area through the frame structure and take into account the slurry at the edge, so as to uniformly mix the slurry. This application does not impose any restrictions.

[0047] In some embodiments, such as Figure 1As shown, the bottom 20(a) of the tank body 20 is provided with a discharge port 25, which is connected to the slurry chamber 21.

[0048] According to the above embodiments, by setting the discharge port at the bottom of the tank, bottom discharge of slurry is achieved, allowing the slurry to flow out of the tank by gravity, and avoiding the accumulation of sediment in the slurry, thereby increasing the discharge speed and reducing slurry waste.

[0049] In some embodiments, such as Figure 1 As shown, the bottom 20(a) of the tank body 20 is conical, and the discharge port 25 is located at the top of the cone.

[0050] Here, the apex of the cone refers to the top of the cone-shaped geometry, that is, as shown in the image. Figure 1 As shown, the top of the cone is located below the bottom 20(a) of the tank 20 in the direction of gravity.

[0051] According to the above embodiments, a conical structure is set on the basis of the discharge port at the bottom of the tank to make the slurry flow out more smoothly, avoid the accumulation of slurry at the bottom of the tank, and reduce the waste of slurry.

[0052] In the above embodiments, such as Figure 1 and Figure 3 As shown, the shape of the lower end of the stirring blade 31 is designed to match the shape of the bottom of the tank 20. That is, a part 31(c) of the stirring blade 31 is set as a triangular structure, which is V-shaped as seen in the figure, and extends to the inner wall of the conical bottom 20(a) of the tank 20. This allows the stirring blade 31 to stir the slurry located on the inner wall of the bottom of the tank 20, making the slurry at the bottom of the slurry chamber more uniformly mixed, reducing slurry waste, and further improving the slurry quality.

[0053] Figure 4 This is a partial schematic diagram of a slurry mixing device according to an embodiment of this application.

[0054] In some embodiments, such as Figure 4 As shown, a speed sensor 40 for detecting the speed of the stirring shaft 30 is installed on the outside of the tank 20.

[0055] Among them, the speed sensor 40 can detect the rotational speed of the stirring shaft 30, and the unit of rotational speed of the stirring shaft 30 can be revolutions per minute.

[0056] In some embodiments, such as Figure 4 As shown, a speed deviation alarm 41 connected to a speed sensor 40 is also installed on the outside of the tank 20. When the speed sensor 40 detects that the rotational speed of the stirring shaft 30 is lower than the first threshold or higher than the second threshold, the speed deviation alarm 41 will sound an alarm.

[0057] The speed deviation alarm 41 and the speed sensor 40 can be electrically connected. The speed deviation alarm 41 can obtain the rotational speed of the stirring shaft 30 detected by the speed sensor 40 and monitor whether the rotational speed of the stirring shaft 30 is within the threshold range.

[0058] In some examples, the first threshold can be 9 minutes per revolution and the second threshold can be 11 minutes per revolution. That is, when the speed of the stirring shaft 30 is detected to be lower than 9 minutes per revolution or higher than 11 minutes per revolution, the speed deviation alarm 41 will sound an alarm.

[0059] In the above embodiments, the speed deviation alarm 41 can issue an alarm in the form of an audible alarm, a vibration alarm, or other alarm methods. This application does not impose any restrictions. In addition, the threshold range can be set differently according to the different slurries and the different shapes of the stirring blades. The rotation speed unit can also be set to other rotation speed units besides minutes / revolutions. This application is not limited to this.

[0060] According to the above embodiments, by setting a speed sensor and a speed deviation alarm, the rotation speed of the stirring shaft can be monitored. When the rotation speed of the stirring shaft exceeds the preset threshold range, an alarm is issued to avoid the stirring shaft speed being too high, causing the slurry temperature to be too high and volatilizing or bubbles to be generated inside the slurry, or the stirring shaft speed being too low, causing poor slurry mixing.

[0061] In some embodiments, such as Figure 4 As shown, a pneumatic motor 42 connected to a stirring shaft 30 is also provided on the outside of the tank body 20. The pneumatic motor 42 controls the rotation of the stirring shaft 30. A vacuum pump 43 and an air inlet 44 connected to the vacuum pump 43 are also provided on the outside of the tank body 20. The vacuum pump 43 is connected to the slurry chamber 21. A control device 45 and a display device 46 are also provided on the outside of the tank body 20. The control device 45 is connected to the pneumatic motor 42 and the air inlet 44 to control the air intake of the pneumatic motor 42 and the air inlet 44. The display device 46 is connected to the control device 45 and displays the information according to the control of the control device 45.

[0062] In some examples, such as Figure 4 As shown, when the speed deviation alarm 41 issues an alarm indicating that the rotational speed of the stirring shaft 30 is too high or too low, the operator can control the pneumatic motor 42 to keep the rotational speed of the stirring shaft 30 within the threshold range, or the pneumatic motor 42 can automatically control the rotational speed of the stirring shaft 30 within the threshold range when the speed deviation alarm 41 issues an alarm. The pneumatic motor 42 and the stirring shaft 30 can be mechanically connected.

[0063] In other examples, such as Figure 4As shown, when the air pressure in the slurry chamber 21 is abnormal or air bubbles appear in the slurry, the air pressure in the slurry chamber 21 can be adjusted by the vacuum pump 43 and the air inlet 44 to prevent air bubbles from appearing inside the slurry.

[0064] In some other examples, such as Figure 4 As shown, the air intake of the pneumatic motor 42 and the air inlet 44 can be controlled by the control device 45. That is, the control device 45 can control the pneumatic motor 42, thereby controlling the rotational speed of the stirring shaft 30. The control device 45 can also control the air inlet 44, thereby controlling the air pressure in the slurry chamber 21.

[0065] The control device 45 is also connected to a display device 46. The display device 46 displays information according to the control of the control device 45. For example, the display device 46 can display information such as the control device 45 controlling the pneumatic motor 42 to increase or decrease the speed of the stirring shaft 30, the current speed of the stirring shaft 30, the control device 45 controlling the air inlet 44 to increase or decrease the air pressure in the slurry chamber 21, and the air intake speed of the air inlet 44. The display content of the display device 46 can be set according to specific needs, and this application does not impose any restrictions. This application also does not limit the implementation method of the display device.

[0066] According to the above embodiments, by setting a control device to control the pneumatic motor, the rotational speed of the stirring shaft can be kept within the threshold range according to the alarm of the speed deviation alarm, thereby improving the stirring efficiency of the stirring shaft and the quality of the slurry. In addition, by controlling the air intake of the air inlet through the control device, it can be ensured that there are no air bubbles in the slurry in the slurry chamber and that the air pressure in the slurry chamber is kept at a normal level.

[0067] In some embodiments, such as Figure 1 As shown, the volume of tank 20 is 60 liters.

[0068] This increases the volume of the tank containing the slurry, allowing the slurry mixing device to hold more slurry and improving the mixing efficiency. Furthermore, the tank volume can be set to be larger or smaller than 60 liters as needed; this application does not impose any limitations.

[0069] The above examples illustrate some embodiments of this application. Table 1 illustrates some effects of the embodiments of this application, showing the performance of slurry casting of different materials using the slurry mixing device of the embodiments of this application.

[0070] Table 1

[0071]

[0072] As shown in Table 1, Casting capability refers to the material dimensions of the slurry cast using the slurry mixing device, CPK (Process Capability Index) represents the quality of the casting material, STD (Standard Deviation) represents the accuracy of the casting material, Aging Tank represents the slurry mixing using the slurry mixing device of this application embodiment, and Normal Tank represents the slurry mixing using other existing slurry mixing devices. The higher the CPK, the higher the quality of the casting material, and the lower the STD, the higher the accuracy of the casting material.

[0073] As can be seen from Table 1, based on casting materials of the same size, the material cast using the slurry mixing device of this application embodiment has better quality and higher precision.

[0074] It is worth noting that the above description only illustrates the structure of the slurry mixing device related to this application. This slurry mixing device may also include other components, such as... Figure 1 The bracket 50, roller 51, etc. shown are described in detail in the relevant technical documents, which are omitted here.

[0075] Through the above embodiments, the slurry mixing device of this application uses a frame-type mixing blade that extends to the inner wall of the slurry chamber, which increases the mixing area of ​​the mixing blade, enhances the uniform mixing effect of the slurry mixing device on the slurry, reduces the waste slurry generated during the mixing process, and cools the slurry in the slurry chamber by setting a cooling chamber to prevent the slurry temperature from rising and volatilizing, thereby improving the slurry conversion rate. In addition, by setting a speed sensor and a speed deviation alarm, the mixing speed of the mixing shaft can be kept stable, avoiding the formation of air bubbles in the slurry and improving the quality of the slurry.

[0076] Second aspect of the embodiments

[0077] This application provides a casting machine. The casting machine includes the slurry mixing device described in the first aspect embodiment. Since the structure of the slurry mixing device has already been described in the first aspect embodiment, its content is incorporated herein by reference and will not be repeated here. Other components of the casting machine can be found in related technologies, and this application does not impose any limitations thereon.

[0078] The embodiments of this application have been described above with reference to specific implementation methods. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make various modifications and variations to the embodiments of this application based on the spirit and principles of the embodiments, and these modifications and variations are also within the scope of the embodiments of this application.

[0079] Preferred embodiments of the present application have been described above with reference to the accompanying drawings. Many features and advantages of these embodiments are apparent from this detailed description, and therefore the appended claims are intended to cover all such features and advantages falling within the true spirit and scope of these embodiments. Furthermore, since many modifications and alterations will readily occur to those skilled in the art, the embodiments of the present application are not intended to be limited to the precise structures and operations illustrated and described, but rather to encompass all suitable modifications and equivalents falling within their scope.

Claims

1. A slurry mixing device, the slurry mixing device comprising a tank for holding slurry and a mixing shaft located within the tank for mixing the slurry, characterized in that, The tank has a slurry chamber and a cooling chamber arranged around the slurry chamber. A stirring blade is provided below the stirring shaft. The stirring blade has a frame structure and extends to the inner wall of the slurry chamber.

2. The slurry mixing device according to claim 1, characterized in that, A water inlet is provided on the side wall of the tank, and the water inlet is connected to the cooling chamber.

3. The slurry mixing device according to claim 1, characterized in that, The stirring blade is square-shaped, and the stirring shaft is coaxial with the axis of symmetry of the stirring blade.

4. The slurry mixing device according to claim 1, characterized in that, A discharge port is provided at the bottom of the tank, and the discharge port is connected to the slurry chamber.

5. The slurry mixing device according to claim 4, characterized in that, The bottom of the tank is conical, and the discharge port is located at the top of the cone.

6. The slurry mixing device according to claim 1, characterized in that, A speed sensor is installed on the outside of the tank to detect the speed of the stirring shaft.

7. The slurry mixing device according to claim 6, characterized in that, A speed deviation alarm connected to the speed sensor is also installed on the outside of the tank. When the speed sensor detects that the rotational speed of the stirring shaft is lower than a first threshold or higher than a second threshold, the speed deviation alarm will sound an alarm.

8. The slurry mixing device according to claim 1, characterized in that, A pneumatic motor connected to the stirring shaft is also installed outside the tank body, and the pneumatic motor controls the rotation of the stirring shaft; A vacuum pump and an air inlet connected to the vacuum pump are also provided on the outside of the tank body; the vacuum pump is connected to the slurry chamber. A control device and a display device are also provided on the outside of the tank. The control device is connected to the pneumatic motor and the air inlet to control the air intake of the pneumatic motor and the air inlet. The display device is connected to the control device and displays the information according to the control of the control device.

9. The slurry mixing device according to claim 1, characterized in that, The tank has a volume of 60 liters.

10. A casting machine, characterized in that, The casting machine includes the slurry mixing device according to any one of claims 1-9.

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