Material mixing device

Abstract

A material mixing device comprises a material container, a liquid container and an emulsification pump, and further comprises a mixing container and a shearing device arranged in the mixing container, the material container is provided with a material discharging port, the liquid container is provided with a liquid outlet, and the mixing container is provided with a material feeding port, a liquid inlet and a primary mixed material discharging port. The emulsification pump is provided with a mixed material feeding port and a secondary mixed material discharging port, a material discharging port of the material container is communicated with a material feeding port of the mixing container, a liquid outlet of the liquid container is communicated with a liquid inlet of the mixing container, and a primary mixed material discharging port of the mixing container is communicated with the mixed material feeding port of the emulsification pump. And the secondary mixed material discharge port of the emulsification pump is used for discharging the mixed material which is secondarily refined and mixed by the emulsification pump. The material mixing device can prevent materials from quickly expanding and condensing into large hardened materials during mixing, so that the emulsifying pump can realize normal material mixing and conveying without changing the structure of the emulsifying pump.

Description

Technical Field

[0001] The present invention relates to the field of mixing technologies, and particularly to a material mixing device. Background Art

[0002] A Chinese utility model with the authorization announcement number CN209791314U discloses a material mixing device, which includes a material container, a mixing container, an emulsifying pump and a controller; during operation, liquid is added to the mixing container, and materials are added to the material container. The emulsifying pump is turned on through the controller to form a negative pressure in the cavity of the emulsifying pump. The materials in the material container are sucked into the cavity of the emulsifying pump through a feed pipe, and at the same time, the liquid in the mixing container is also sucked into the cavity of the emulsifying pump through an infusion pipe. The materials and the liquid are fully mixed under the high-speed shearing action of the emulsifying pump rotor, and then discharged into the mixing container through a discharge pipe. The mixed material after mixing with the liquid is continuously sucked into the cavity of the emulsifying pump from the bottom of the mixing container and mixed with the newly sucked materials from the material container. By circulating in this way, a completely wet and evenly dispersed mixed material can be obtained.

[0003] However, the existing material mixing devices still have the following technical problems: for some materials that will expand rapidly when encountering liquids, it is very easy to have the situation that the materials expand rapidly and condense into large hardened blocks during mixing. This will not only block the material passage, but also have an adverse effect on the shearing effect of the emulsifying pump, and it is impossible to form a uniformly dispersed mixed material, resulting in the inability of a conventional emulsifying pump to achieve normal material mixing and transportation. Summary of the Invention

[0004] The technical problem to be solved by the present invention is: to provide a material mixing device that can prevent the situation that materials expand rapidly and condense into large hardened blocks during mixing, so that the emulsifying pump can achieve normal material mixing and transportation without changing the structure of the emulsifying pump.

[0005] The technical solution of the present invention is: a material mixing device, which includes a material container, a liquid container and an emulsifying pump, and further includes a mixing container and a shearing device arranged in the mixing container. The material container is provided with a material discharge port, the liquid container is provided with a liquid outlet, the mixing container is provided with a material inlet, a liquid inlet and a primary mixed material discharge port, the emulsifying pump is provided with a mixed material inlet and a secondary mixed material discharge port. The material discharge port of the material container is communicated with the material inlet of the mixing container, and is used for transporting materials into the mixing container and performing preliminary shearing and refinement through the shearing device. The liquid outlet of the liquid container is communicated with the liquid inlet of the mixing container, and is used for transporting liquid into the mixing container and mixing it with the preliminarily sheared and refined materials. The primary mixed material discharge port of the mixing container is communicated with the mixed material inlet of the emulsifying pump, and is used for transporting the preliminarily refined and mixed materials into the emulsifying pump. The secondary mixed material discharge port of the emulsifying pump is used for discharging the mixed materials that have been secondarily refined and mixed by the emulsifying pump.

[0006] After adopting the above structure, the present invention has the following advantages:

[0007] In the material mixing device of the present invention, a mixing container with a shearing device is added before the emulsifying pump. The shearing device is used to preliminarily shear and refine the material, breaking the material into small shapes. Then, the preliminarily sheared and refined material is mixed with the liquid by the mixing container. Since the expanded size of the crushed and refined material is very limited when it encounters the liquid, it is possible to prevent the situation where the material expands rapidly and condenses into large hardened blocks during mixing, thus preventing blockage of the material passage. As a result, the preliminarily refined and mixed material can easily enter the emulsifying pump without changing the structure of the emulsifying pump. Since the mixed material entering the emulsifying pump has been preliminarily refined and mixed, the emulsifying pump can better play the shearing role, further refining and mixing the mixed material more evenly and dispersedly, thereby ensuring the normal material mixing and transportation of the emulsifying pump.

[0008] Preferably, the secondary mixed material discharge port of the emulsifying pump is also connected to a liquid container for discharging the mixed material that has been secondarily refined and mixed by the emulsifying pump into the liquid container. Sharing a single container for liquid storage and drainage not only simplifies the structure but also continuously remixes the mixed material refined and mixed by the emulsifying pump with the newly input material from the material container, realizing a continuous circulation working mode and making the finally obtained mixed material more evenly dispersed.

[0009] Preferably, the material feed port is arranged at the top of the mixing container, and the shearing device is arranged below the material feed port. The shearing device includes a knife shaft vertically arranged in the mixing container and a cutter arranged at the top of the knife shaft. The rotation of the knife shaft drives the cutter to shear the material at the material feed port. This shearing device has a simple structure, and with a reasonable design of the position of the material feed port, the material can be reliably sheared.

[0010] Preferably, an atomizing nozzle is also provided on the mixing container near the cutter of the shearing device for atomizing the sheared and refined material to harden its surface. Since the sheared and refined material is not easily dropped, and the surface of the material is hardened after atomization, the material is more easily dropped, thereby improving the conveying efficiency of the material.

[0011] Preferably, a perforated plate is also provided at the material feed port, and a plurality of holes are evenly arranged on the perforated plate. This setting can disperse the material entering the material feed port through the perforated plate, making it not easy to stick and agglomerate, which is more conducive to shearing and refining. Secondly, the perforated plate also separates the material being sheared from the material to be sheared to further improve the shearing and refining effect. Thirdly, the perforated plate can block the influence of the atomized liquid sprayed by the atomizing nozzle on the material to be sheared, avoiding the hardening of the material to be sheared before shearing and refining and affecting the shearing and refining effect.

[0012] Preferably, the mixing container is arranged directly below the material container, and the material discharge port is arranged at the bottom of the material container. This arrangement facilitates the connection between the material container and the mixing container, optimizes the pipeline design, and enables the material to quickly enter the material inlet of the mixing container.

[0013] Preferably, the liquid inlet and the primary mixing discharge port are arranged opposite to each other and are located below the cutter of the shearing device, so that the cutter of the shearing device is above the liquid level and the primary mixing discharge port is in the liquid level. This layout is reasonable, which can ensure that the material is first refined by the cutter of the shearing device and then mixed with the liquid below, so as to obtain the refined and mixed material.

[0014] Preferably, the liquid container is arranged on one side of the liquid inlet of the mixing container, the emulsifying pump is arranged on one side of the primary mixing discharge port of the mixing container, and the liquid outlet is arranged at the bottom of the liquid container. This arrangement optimizes the layout of the liquid container and the emulsifying pump, further optimizes the pipeline layout, and makes the material flow smoother.

[0015] Preferably, the material discharge port of the material container is communicated with the material inlet of the mixing container through a material conveying pipe, the liquid outlet of the liquid container is communicated with the liquid inlet of the mixing container through a liquid conveying pipe, the secondary mixing discharge port of the emulsifying pump is communicated with the liquid container through a discharge pipe, and a first control valve, a second control valve and a third control valve are respectively arranged on the material conveying pipe, the liquid conveying pipe and the discharge pipe. This arrangement can adjust the ratio of the material to the liquid, the mixing speed, etc. by using the three control valves, and can also control the liquid level of the mixing container to be always lower than the cutter of the shearing device.

[0016] Preferably, it further includes a PLC controller, a first driving device and a second driving device. The first driving device is connected to the driving shaft of the emulsifying pump through a first transmission mechanism, the second driving device is connected to the cutter shaft of the shearing device through a second transmission mechanism, and the first control valve, the second control valve, the third control valve, the first driving device and the second driving device are all electrically connected to the PLC controller. This arrangement uses the PLC controller to realize the coordinated control of each component, so that the parameters of each link can be optimized, with high automation and precise control. Description of the Drawings

[0017] Figure 1 It is a front structural schematic diagram of the material mixing device of the present invention;

[0018] Figure 2 is Figure 1 a partial enlarged schematic diagram at A in

[0019] Figure 3 It is a back structural schematic diagram of the material mixing device of the present invention;

[0020] Figure 4Mainly shows the structural schematic diagram of the mixing container of the present invention;

[0021] Figure 5 Mainly shows the structural schematic diagram of the internal shearing device after hiding the orifice plate of the mixing container of the present invention;

[0022] In the figure: 1 - material container, 2 - liquid container, 3 - emulsifying pump, 4 - mixing container, 5 - shearing device, 6 - material discharge port, 7 - liquid outlet, 8 - material inlet, 9 - liquid inlet, 10 - primary mixture discharge port, 11 - mixture inlet, 12 - secondary mixture discharge port, 13 - knife shaft, 14 - cutter, 15 - atomizing nozzle, 16 - orifice plate, 17 - hole, 18 - material conveying pipe, 19 - liquid conveying pipe, 20 - discharge pipe, 21 - first control valve, 22 - second control valve, 23 - third control valve, 24 - PLC controller, 25 - first driving device, 26 - second driving device, 27 - first transmission mechanism, 28 - second transmission mechanism, 29 - driving shaft. Specific embodiments

[0023] The following combines the accompanying drawings and embodiments to further illustrate the present invention.

[0024] Embodiment:

[0025] As Figures 1 - 5 shown, a material mixing device includes a material container 1, a liquid container 2 and an emulsifying pump 3, and further includes a mixing container 4 and a shearing device 5 arranged in the mixing container 4. The material container 1 is provided with a material discharge port 6, the liquid container 2 is provided with a liquid outlet 7, the mixing container 4 is provided with a material inlet 8, a liquid inlet 9 and a primary mixture discharge port 10, the emulsifying pump 3 is provided with a mixture inlet 11 and a secondary mixture discharge port 12. The material discharge port 6 of the material container 1 is communicated with the material inlet 8 of the mixing container 4 for conveying the material into the mixing container 4 and performing preliminary shearing and refinement through the shearing device 5. The liquid outlet 7 of the liquid container 2 is communicated with the liquid inlet 9 of the mixing container 4 for conveying the liquid into the mixing container 4 and mixing with the preliminarily sheared and refined material. The primary mixture discharge port 10 of the mixing container 4 is communicated with the mixture inlet 11 of the emulsifying pump 3 for conveying the preliminarily refined and mixed mixture into the emulsifying pump 3. The secondary mixture discharge port 12 of the emulsifying pump 3 is used for discharging the mixture that has been secondarily refined and mixed by the emulsifying pump 3; The emulsifying pump 3 can adopt the existing technology, generally including a pump chamber and a pair of stator and rotor arranged in the pump chamber. The stator and rotor are precisely combined together to generate a strong shearing force during high-speed rotation to achieve the mixing, homogenization, dispersion and pulverization of the material. In this embodiment, a negative pressure type emulsifying pump 3 is adopted, so that a strong negative pressure is generated inside the emulsifying pump 3 to suck the material into the pump chamber of the emulsifying pump 3.

[0026] Before the emulsifying pump 3, a mixing container 4 with a shearing device 5 is added to the material mixing device of the present invention. The shearing device 5 is used to preliminarily shear and refine the material, breaking the material into small shapes. Then, the preliminarily sheared and refined material is mixed with the liquid by the mixing container 4. Since the expanded size of the crushed and refined material is very limited when it encounters the liquid, it is possible to prevent the situation where the material expands rapidly and condenses into large hardened blocks during mixing, thus preventing blockage of the material passage. As a result, the preliminarily refined and mixed material can easily enter the emulsifying pump 3 without changing the structure of the emulsifying pump 3. Since the material entering the emulsifying pump 3 has been preliminarily refined and mixed, the emulsifying pump 3 can better play the shearing role and further refine and mix the material more evenly and dispersedly, thus ensuring the normal material mixing and transportation of the emulsifying pump 3.

[0027] The secondary material discharge port 12 of the emulsifying pump 3 is also connected to the liquid container 2, and is used to discharge the material that has been secondarily refined and mixed by the emulsifying pump 3 into the liquid container 2. In this embodiment, the tops of the material container 1 and the liquid container 2 are both open. The secondary material discharge port 12 of the emulsifying pump 3 is introduced to the open top of the liquid container 2 through a pipeline, and the connection between the secondary material discharge port 12 of the emulsifying pump 3 and the liquid container 2 can be achieved. Sharing a single container for liquid storage and discharge not only simplifies the structure, but also continuously remixes the material that has been refined and mixed by the emulsifying pump 3 with the newly input material from the material container 1, realizing a continuous circulation working mode and making the finally obtained material more evenly and dispersedly mixed.

[0028] The material inlet 8 is arranged at the top of the mixing container 4, and the shearing device 5 is arranged below the material inlet 8. The shearing device 5 includes a cutter shaft 13 vertically arranged in the mixing container 4 and a cutter 14 arranged at the top of the cutter shaft 13. The rotation of the cutter shaft 13 drives the cutter 14 to shear the material at the material inlet 8. In this embodiment, the cutter 14 includes a plurality of cutting blades, and the plurality of cutting blades are evenly arranged along the circumferential direction of the cutter shaft 13. In this embodiment, the up, down, left, right, front, and rear directions are based on Figure 1 this standard. The structure of the shearing device 5 is simple, and with the reasonable design of the position of the material inlet 8, the material can be reliably sheared.

[0029] An atomizing nozzle 15 is also arranged on the mixing container 4 and near the cutter 14 of the shearing device 5, and is used to atomize the sheared and refined material to harden its surface. Since the sheared and refined material is not easy to fall, and the surface of the material is hardened after atomization, the material is easier to drop, thus improving the transportation efficiency of the material.

[0030] A perforated plate 16 is also provided at the material inlet 8, and a plurality of holes 17 are evenly arranged on the perforated plate 16. This setting can disperse the material entering the material inlet 8 through the perforated plate 16, making it not easy to adhere and agglomerate, and is more conducive to shearing and refining. Secondly, the perforated plate 16 also separates the material being sheared from the material to be sheared to further improve the shearing and refining effect. Thirdly, the perforated plate 16 can block the influence of the atomized liquid sprayed by the atomizing nozzle 15 on the material to be sheared, preventing the material to be sheared from being hardened before shearing and refining, which affects the shearing and refining effect.

[0031] The mixing container 4 is arranged directly below the material container 1, and the material outlet 6 is arranged at the bottom of the material container 1. This setting facilitates the connection between the material container 1 and the mixing container 4, and the pipeline design is optimized, enabling the material to quickly enter the material inlet 8 of the mixing container 4.

[0032] The liquid inlet 9 and the primary mixture discharge port 10 are oppositely arranged and located below the cutter 14 of the shearing device 5, so that the cutter 14 of the shearing device 5 is above the liquid level and the primary mixture discharge port 10 is in the liquid level. This layout is reasonable, which can ensure that the material is first sheared and refined by the cutter 14 and then mixed with the liquid below to obtain the refined and mixed mixture.

[0033] The liquid container 2 is arranged on one side of the liquid inlet 9 of the mixing container 4, the emulsifying pump 3 is arranged on one side of the primary mixture discharge port 10 of the mixing container 4, and the liquid outlet 7 is arranged at the bottom of the liquid container 2. This setting optimizes the layout of the liquid container 2 and the emulsifying pump 3, further optimizes the pipeline layout, and makes the material flow more smoothly.

[0034] The material outlet 6 of the material container 1 is connected to the material inlet 8 of the mixing container 4 through a feeding pipe 18, the liquid outlet 7 of the liquid container 2 is connected to the liquid inlet 9 of the mixing container 4 through a liquid delivery pipe 19, the secondary mixture discharge port 12 of the emulsifying pump 3 is connected to the liquid container 2 through a discharge pipe 20, and a first control valve 21, a second control valve 22 and a third control valve 23 are respectively arranged on the feeding pipe 18, the liquid delivery pipe 19 and the discharge pipe 20. This setting can adjust the ratio of the material to the liquid, the mixing speed, etc. by using the three control valves, and can also control the liquid level of the mixing container 4 to be always lower than the cutter 14 of the shearing device 5.

[0035] It also includes a PLC controller 24, a first driving device 25 and a second driving device 26. The first driving device 25 is connected to the driving shaft 29 of the emulsifying pump 3 through a first transmission mechanism 27, and the second driving device 26 is connected to the cutter shaft 13 of the shearing device 5 through a second transmission mechanism 28. The first control valve 21, the second control valve 22, the third control valve 23, the first driving device 25 and the second driving device 26 are all electrically connected to the PLC controller 24. In this embodiment, the first control valve 21, the second control valve 22 and the third control valve 23 are all pneumatic regulating valves, the first driving device 25 and the second driving device 26 are both motors, and the PLC controller 24, the first transmission mechanism 27 and the second transmission mechanism 28 can all adopt existing technologies. The PLC controller 24 is a digital operation electronic system specially designed for application in industrial environments. It controls various types of mechanical equipment or production processes through digital or analog inputs and outputs. The first transmission mechanism 27 generally includes a coupling, and the second transmission mechanism 28 generally includes a gear reduction box. This setting uses the PLC controller 24 to achieve coordinated control of each component, enabling the parameters of each link to be optimized, with high automation and precise control.

[0036] The working principle of the material mixing device in this embodiment is as follows:

[0037] The PLC controller 24 starts the first driving device 25 and the second driving device 26, causing the emulsifying pump 3 and the shearing device 5 to start working; after the emulsifying pump 3 starts working, a strong negative pressure is generated inside, causing the material in the material container 1 to be sucked into the mixing container 4 through the material conveying pipe 18, and the liquid in the liquid container 2 is sucked into the mixing container 4 through the liquid conveying pipe 19; by controlling the first control valve 21, the second control valve 22 and the third control valve 23, the ratio of the material to the liquid, the mixing speed, etc. can be adjusted, and the liquid level of the mixing container 4 can also be controlled to be always lower than the cutting tool 14 of the shearing device 5; the material sucked into the material inlet 8 of the mixing container 4 is dispersed through the orifice plate 16 and falls onto the shearing device 5, and the rotating cutting tool 14 performs preliminary shearing and refinement on the material, breaking it into small shapes. At the same time, the atomized liquid sprayed by the atomizing nozzle 15 hardens the surface of the sheared and refined material, and the small surface-hardened material is more likely to fall, so that it can quickly enter the liquid in the mixing container 4 and be mixed with the liquid; since the small material after crushing and refinement expands very limitedly when it encounters the liquid, the situation where the material quickly expands and condenses into large hardened objects during mixing can be prevented, so that the material passage will not be blocked, and the preliminarily refined and mixed mixture can easily be sucked into the emulsifying pump 3 again through the negative pressure; the mixture entering the emulsifying pump 3 is further sheared at high speed by the stator and rotor in the pump chamber to obtain a more uniformly dispersed mixture; the mixture that has been refined and mixed twice by the emulsifying pump 3 continuously discharges through the secondary mixture discharge port 12 and the discharge pipe 20 and is re-discharged into the liquid container 2, and is mixed with the liquid in the liquid container 2 again to participate in the next mixing with new materials. In this way, a continuous cycle working mode is realized, making the finally obtained mixture more uniformly dispersed.

Claims

1. A material mixing device, comprising a material container (1), a liquid container (2) and an emulsifying pump (3), characterized in that: It further includes a mixing container (4) and a shearing device (5) disposed inside the mixing container (4). The material container (1) is provided with a material discharge port (6), the liquid container (2) is provided with a liquid outlet (7), the mixing container (4) is provided with a material inlet (8), a liquid inlet (9) and a primary mixed material discharge port (10), the emulsifying pump (3) is provided with a mixed material inlet (11) and a secondary mixed material discharge port (12). The material discharge port (6) of the material container (1) is communicated with the material inlet (8) of the mixing container (4) for conveying the material into the mixing container (4) and performing preliminary shearing and refinement through the shearing device (5). The liquid outlet (7) of the liquid container (2) is communicated with the liquid inlet (9) of the mixing container (4) for conveying the liquid into the mixing container (4) and mixing it with the preliminarily sheared and refined material. The primary mixed material discharge port (10) of the mixing container (4) is communicated with the mixed material inlet (11) of the emulsifying pump (3) for conveying the preliminarily refined and mixed material into the emulsifying pump (3). The secondary mixed material discharge port (12) of the emulsifying pump (3) is used for discharging the material that has been refined and mixed twice by the emulsifying pump (3).

2. The material mixing device according to claim 1, wherein: The secondary mixed material discharge port (12) of the emulsifying pump (3) is further communicated with the liquid container (2) for discharging the material that has been refined and mixed twice by the emulsifying pump (3) into the liquid container (2).

3. A material mixing device according to claim 1, characterized in that: The material inlet (8) is disposed at the top of the mixing container (4), the shearing device (5) is disposed below the material inlet (8). The shearing device (5) includes a cutter shaft (13) vertically disposed inside the mixing container (4) and a cutter (14) disposed at the top of the cutter shaft (13). The rotation of the cutter shaft (13) drives the cutter (14) to shear the material at the material inlet (8).

4. A material mixing device according to claim 3, characterized in that: An atomizing nozzle (15) is further provided on the mixing container (4) and near the cutter (14) of the shearing device (5) for atomizing the sheared and refined material to harden its surface.

5. A material mixing device according to claim 4, characterized in that: A perforated plate (16) is further provided at the material inlet (8), and the perforated plate (16) is evenly provided with a plurality of holes (17).

6. The material mixing device according to claim 3, wherein: The mixing container (4) is disposed directly below the material container (1), and the material discharge port (6) is disposed at the bottom of the material container (1).

7. The material mixing device according to claim 3, characterized in that: The liquid inlet (9) and the primary mixed material discharge port (10) are oppositely disposed and located below the cutter (14) of the shearing device (5) so that the cutter (14) of the shearing device (5) is above the liquid level and the primary mixed material discharge port (10) is in the liquid level.

8. A material mixing device according to claim 7, characterized in that: The liquid container (2) is disposed on one side of the liquid inlet (9) of the mixing container (4), the emulsifying pump (3) is disposed on one side of the primary mixed material discharge port (10) of the mixing container (4), and the liquid outlet (7) is disposed at the bottom of the liquid container (2).

9. A material mixing device according to claim 2, characterized in that: The material discharge port (6) of the material container (1) is communicated with the material inlet (8) of the mixing container (4) through a material conveying pipe (18). The liquid outlet (7) of the liquid container (2) is communicated with the liquid inlet (9) of the mixing container (4) through a liquid conveying pipe (19). The secondary mixing discharge port (12) of the emulsifying pump (3) is connected to the liquid container (2) through a discharge pipe (20). A first control valve (21), a second control valve (22) and a third control valve (23) are respectively arranged on the material conveying pipe (18), the liquid conveying pipe (19) and the discharge pipe (20).

10. A material mixing device according to claim 9, characterized in that: It further includes a PLC controller (24), a first driving device (25) and a second driving device (26). The first driving device (25) is connected to the driving shaft (29) of the emulsifying pump (3) through a first transmission mechanism (27). The second driving device (26) is connected to the cutter shaft (13) of the shearing device (5) through a second transmission mechanism (28). The first control valve (21), the second control valve (22), the third control valve (23), the first driving device (25) and the second driving device (26) are all electrically connected to the PLC controller (24).

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