Internal circulation solid-liquid mixing system

Abstract

The present invention discloses an internal circulation solid-liquid mixing system, including a solid-liquid mixer, the solid-liquid mixer including a tank body, a stirring assembly and a driving member for driving the stirring assembly, and also including a guide cone bucket arranged in the tank body, the guide cone bucket being arranged close to the bottom of the tank body, the stirring assembly being arranged at the bottom of the guide cone bucket and being connected to the guide cone bucket, the output end of the stirring assembly being arranged toward the outer wall of the guide cone bucket, and the outer wall of the guide cone bucket being inclined toward the inner wall of the tank body. The guide cone bucket at the bottom of the tank body of the solid-liquid mixer is connected to the stirring assembly, and the output end of the stirring assembly is arranged toward the outer wall of the guide cone bucket, so that the mixed liquid flows along the guide cone bucket to the inner wall of the tank body, and then flows back into the guide cone bucket along the inner wall of the tank body to form a cycle, thereby ensuring that the materials are fully mixed and effectively improving the mixing uniformity of the materials.

Description

Technical Field

[0001] The invention relates to the technical field of material mixing, in particular to an internal circulation solid-liquid mixing system. Background Art

[0002] Solid-liquid mixers are used to mix powder materials and liquid materials. Existing solid-liquid mixers only pass the powder and liquid through a simple stirring paddle for preliminary solid-liquid mixing. Later, a high-speed disperser is needed to shear and disperse the powder and liquid materials at high speed, or multiple refluxes are added to the pipeline to make the two fully and evenly mixed. This solid-liquid mixer has a low material mixing efficiency and it is difficult to quickly and effectively dissolve the powder in the liquid material. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an internal circulation solid-liquid mixing system which can greatly improve the mixing uniformity and efficiency.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: an internal circulation solid-liquid mixing system, including a solid-liquid mixer, the solid-liquid mixer including a tank body, a stirring assembly and a driving member for driving the stirring assembly, and also including a guide cone bucket arranged in the tank body, the guide cone bucket is arranged close to the bottom of the tank body, the stirring assembly is arranged at the bottom of the guide cone bucket and is connected to the guide cone bucket, the output end of the stirring assembly is arranged toward the outer wall of the guide cone bucket, and the outer wall of the guide cone bucket is inclined toward the inner wall of the tank body.

[0005] The beneficial effects of the present invention are as follows: the guide cone bucket at the bottom of the solid-liquid mixer tank is connected to the stirring assembly, and the output end of the stirring assembly faces the outer wall of the guide cone bucket, so that the mixed liquid flows along the guide cone bucket to the inner wall of the tank body, and then flows back into the guide cone bucket along the inner wall of the tank body to form a circulation, thereby ensuring that the materials are fully and efficiently mixed, and effectively improving the mixing uniformity efficiency of the materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 This is a schematic structural diagram of an internal circulation solid-liquid mixing system according to Embodiment 1 of the present invention;

[0007] Figure 2 A schematic structural diagram of a solid-liquid mixer of an internal circulation solid-liquid mixing system according to a first embodiment of the present invention;

[0008] Figure 3 It is a partial structural cross-sectional view of a solid-liquid mixer according to Embodiment 1 of the present invention;

[0009] Figure 4 It is a partial structural cross-sectional view of a solid-liquid mixer according to Embodiment 1 of the present invention;

[0010] Figure 5 It is a partial structural exploded view of the solid-liquid mixer according to the first embodiment of the present invention;

[0011] Figure 6 Schematic diagram of the shear disk structure of the solid-liquid mixer according to the first embodiment of the present invention

[0012] Figure 7 This is a schematic structural diagram of a dispersing wheel of a solid-liquid mixer according to a first embodiment of the present invention;

[0013] Figure 8 This is a schematic diagram of the propeller structure of the solid-liquid mixer according to the first embodiment of the present invention;

[0014] Fig. 9 This is a schematic diagram of another propeller structure of the solid-liquid mixer according to the first embodiment of the present invention;

[0015] Fig.10 This is a schematic diagram of another propeller structure of the solid-liquid mixer according to the first embodiment of the present invention;

[0016] Fig.11 It is a schematic structural diagram of a solid-liquid mixer according to the second embodiment of the present invention.

[0017] Description of labels:

[0018] 1. Solid-liquid mixer; 2. Tank body; 21. Liquid feed port; 22. Powder feed port;

[0019] 3. guide cone bucket; 4. dispersion wheel; 41. turbine blade; 42. spiral blade; 43. central axis;

[0020] 44, outer ring; 45, spiral groove; 5, shear plate; 51, primary shear hole; 52, secondary shear hole;

[0021] 53. Vertical guide chamber; 6. Mixing barrel; 61. Material change valve; 7. Tank cover guide plate;

[0022] 8. Powder mixer; 9. Liquid weighing device; 10. Driving part; 11. Propelling paddle;

[0023] 12. Liquid level sensor 13. Shear wheel; 14. Stirring transfer tank; 15. Powder feeder;

[0024] 16. Viscometer; 17. Mixing barrel; 18. Reflux barrel. DETAILED DESCRIPTION

[0025] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in combination with the implementation modes and the accompanying drawings.

[0026] The key concept of the present invention is that the output end of the stirring assembly faces the outer wall of the guide cone bucket, so that the mixed liquid flows along the guide cone bucket to the inner wall of the tank body, and then flows back into the guide cone bucket along the inner wall of the tank body to form a cycle.

[0027] Please refer to Figures 1 to 11 The internal circulation solid-liquid mixing system includes a solid-liquid mixer 1, which includes a tank body 2, a stirring assembly and a driving member 10 for driving the stirring assembly, and also includes a guide cone 3 arranged in the tank body 2, the guide cone 3 is arranged close to the bottom of the tank body 2, the stirring assembly is arranged at the bottom of the guide cone 3 and is connected to the guide cone 3, the output end of the stirring assembly is arranged toward the outer wall of the guide cone 3, and the outer wall of the guide cone 3 is inclined toward the inner wall of the tank body 2.

[0028] The working principle of the present invention is briefly described as follows: the materials are stirred and mixed in the solid-liquid mixer of the internal circulation mixing system, and the preliminarily mixed materials flow through the stirring component along the outer wall of the guide cone bucket to the inner wall of the solid-liquid mixing barrel, and then flow into the guide cone bucket for multiple stirring and mixing.

[0029] From the above description, it can be seen that the beneficial effects of the present invention are: the guide cone bucket at the bottom of the solid-liquid mixer tank is connected to the stirring assembly, and the output end of the stirring assembly faces the outer wall of the guide cone bucket, so that the mixed liquid flows along the guide cone bucket to the inner wall of the tank body, and then flows back into the guide cone bucket along the inner wall of the tank body to form a circulation, thereby ensuring that the materials are fully mixed and effectively improving the mixing uniformity of the materials.

[0030] Furthermore, the stirring assembly includes a dispersion wheel 4, a shear disk 5 and a stirring barrel 6, the guide cone 3 is embedded in the top of the shear disk 5, the dispersion wheel 4 is rotatably disposed in the shear disk 5, and the shear disk 5 is accommodated in the stirring barrel 6.

[0031] From the above description, it can be seen that the guide cone bucket is convenient for collecting materials in the barrel, guiding the materials to the dispersion wheel for sufficient stirring, and improving the mixing uniformity of the materials.

[0032] Furthermore, the shear disk 5 includes a primary shear hole 51, a secondary shear hole 52 and a vertical guide cavity 53 which are connected in sequence. The primary shear hole 51 is arranged near the bottom of the shear disk 5. A cavity is formed between the mixing barrel 6 and the shear disk 5. The internal space of the shear disk 5 is connected to the cavity through the primary shear hole 51. The secondary shear hole 52 and the vertical guide cavity 53 are arranged in the cavity. The outlet of the vertical guide cavity 53 is arranged toward the outer wall of the guide cone 3.

[0033] From the above description, it can be seen that the primary shear hole and the secondary shear hole can perform two shearing and dispersion on the material to ensure that the material is fully mixed.

[0034] Furthermore, the dispersion wheel 4 includes turbine blades 41, spiral blades 42, and a connected central shaft 43 and an outer ring 44. The turbine blades 41 are provided on the side walls of the central shaft 43, and the spiral blades 42 are obliquely provided on the inner wall of the outer ring 44. The primary shear hole 51 is located between the turbine blades 41 and the spiral blades 42.

[0035] It can be seen from the above description that the primary shear hole is located between the vortex blade and the spiral blade, and the spiral blade can scrape off the material attached to the periphery of the primary shear hole.

[0036] Furthermore, it also includes a spiral groove 45 , which is arranged on the outer side wall of the outer ring 44 , and the outer side wall of the outer ring 44 is in contact with the inner side wall of the mixing barrel 6 .

[0037] From the above description, it can be seen that as the dispersion wheel rotates, the spiral groove on the outer side wall of the outer ring can guide the material at the bottom upward, so that the material re-enters the solid-liquid mixing barrel for further mixing.

[0038] Furthermore, a material changing valve 61 is provided on the shear disc 5 , and the material changing valve 61 is arranged close to the primary shear hole 51 .

[0039] It can be seen from the above description that the material changing valve is arranged close to the primary shear hole, so that the material after being evenly stirred can flow out of or flow into the material changing valve.

[0040] Furthermore, it also includes a propulsion paddle 11 and a shearing wheel 13. The propulsion paddle 11, the shearing wheel 13 and the dispersion wheel 4 are respectively arranged in the shearing disk 5 from top to bottom.

[0041] Furthermore, it also includes a tank cover guide plate 7, which is provided on the top of the inner wall of the tank body 2, and the tank cover guide plate 7 is inclined toward the center line of the tank body 2.

[0042] It can be seen from the above description that the tank cover guide plate can guide the material to turn, so that the material flows back to the inner space of the guide cone bucket.

[0043] Furthermore, the tank body 2 is provided with a liquid feed port 21 and a powder feed port 22 , and the liquid feed port 21 and the powder feed port 22 are respectively arranged close to the top of the tank body 2 .

[0044] As can be seen from the above description, the powder feed port and the liquid feed port arranged near the top of the tank body are convenient for adding materials at any time.

[0045] Furthermore, it also includes a powder mixer 8 and a liquid weighing device 9 , wherein the powder mixer 8 is connected to the powder feed port 22 , and the liquid weighing device 9 is connected to the liquid feed port 21 .

[0046] Embodiment 1

[0047] Please refer to Figures 1 to 10 , Embodiment 1 of the present invention is: an internal circulation solid-liquid mixing system, comprising a solid-liquid mixer 1, the solid-liquid mixer 1 comprising a tank body 2, a stirring assembly and a driving member 10 for driving the stirring assembly, and also comprising a guide cone 3 arranged in the tank body 2, the guide cone 3 being arranged close to the bottom of the tank body 2, the stirring assembly being arranged at the bottom of the guide cone 3 and being connected with the guide cone 3, the output end of the stirring assembly being arranged toward the outer wall of the guide cone 3, and the outer wall of the guide cone 3 being arranged inclined toward the inner wall of the tank body 2. Optionally, the driving member 10 is an electric motor, and the lower end of the tank body 2 is gradually accommodated. Preferably, the side wall at the lower end of the tank body 2 has the same inclination angle as the side wall of the guide cone 3, so as to facilitate the upward flow of materials.

[0048] In detail, the stirring assembly includes a dispersion wheel 4, a shear disk 5 and a stirring barrel 6, the guide cone 3 is embedded in the top of the shear disk 5, the dispersion wheel 4 is rotatably disposed in the shear disk 5, and the shear disk 5 is accommodated in the stirring barrel 6.

[0049] Please refer to Figure 6 The shearing disk 5 includes a primary shearing hole 51, a secondary shearing hole 52 and a vertical guide cavity 53 which are connected in sequence. The primary shearing hole 51 is arranged near the bottom of the shearing disk 5. A cavity is formed between the mixing barrel 6 and the shearing disk 5. The internal space of the shearing disk 5 is connected to the cavity through the primary shearing hole 51. The secondary shearing hole 52 and the vertical guide cavity 53 are arranged in the cavity. The outlet of the vertical guide cavity 53 is arranged toward the outer wall of the guide cone 3. In this embodiment, a tank cover guide plate 7 is also included. The tank cover guide plate 7 is arranged on the top of the inner wall of the tank body 2. The tank cover guide plate 7 is inclined toward the center line of the tank body 2. The tank cover guide plate 7 is used to guide the material to flow toward the center of the guide cone 3.

[0050] It is easy to understand that after being stirred by the dispersion wheel 4, the material flows through the primary shear hole 51, the secondary shear hole 52 and the vertical guide cavity 53 in sequence, and then is sprayed from the vertical guide cavity 53 onto the outer wall of the guide cone 3, flows upward along the inner wall of the tank body 2 under the guidance of the guide cone 3, and continues to flow to the central area of ​​the guide cone 3 under the action of the guide plate of the tank body 2, forming an internal circulation.

[0051] In this embodiment, the dispersion wheel 4 includes a turbine blade 41, a spiral blade 42, and a connected central shaft 43 and an outer ring 44. The turbine blade 41 is provided on the side wall of the central shaft 43, and the spiral blade 42 is obliquely provided on the inner side wall of the outer ring 44. The primary shear hole 51 is located between the turbine blade 41 and the spiral blade 42. Specifically, it also includes a spiral groove 45, which is provided on the outer side wall of the outer ring 44, and the outer side wall of the outer ring 44 is in contact with the inner side wall of the mixing barrel 6.

[0052] The shear disc 5 is provided with a refueling valve 61, and the refueling valve 61 is arranged near the primary shearing hole 51. Preferably, the dispersion wheel 4 is a hollow structure, the central axis 43 is connected to the outer ring 44 by a connecting arm, the number of the turbine blades 41 and the spiral blades 42 are both multiple, and there is a gap between two adjacent connecting arms. The material flows into the guide cone 3 in the tank body 2, a part of the material flows directly from the primary shearing hole 51 to the tank body 2, and the other part of the material flows downward through the gap between the connecting arms and flows to the refueling valve 61; the spiral groove 45 provided on the outer side wall of the outer ring 44 guides the material in the cavity of the refueling valve 61 upward, so that the material re-enters the internal circulation of the tank body 1 for mixing, and the material on the inner wall of the mixing barrel 6 can be scraped off. Preferably, the refueling valve 61 includes a discharge valve and a feed valve. In this embodiment, the number of the discharge valve and the feed valve are both one.

[0053] Optionally, it further comprises a propulsion paddle 11 and a shearing wheel 13, wherein the propulsion paddle 11, the shearing wheel 13 and the dispersion wheel 4 are respectively arranged in the shearing disk 5 from top to bottom.

[0054] In detail, the tank body 2 is provided with a liquid feed port 21 and a powder feed port 22, and the liquid feed port 21 and the powder feed port 22 are respectively arranged near the top of the tank body 2. The top of the tank body is also provided with a liquid level sensor 12 for detecting the material capacity.

[0055] Please refer to Figure 1 , further comprising a powder mixer 8, a liquid weighing device 9, a stirring transfer tank 14, a powder feeder 15 and a viscometer 16, wherein the powder mixer 8 is connected to the powder feed port 22, the liquid weighing device 9 is connected to the liquid feed port 21, the discharge end of the solid-liquid mixer 1 is connected to the stirring transfer tank 14 through the viscometer 16, the stirring transfer tank 14 is provided with a reflux device, the material in the stirring transfer tank 14 can flow back into the solid-liquid mixer 1 through the reflux device, the powder feeder 15 is connected to the powder mixer 8, and the powder feeder 15 inputs the powder material to the powder mixer 8 through a pneumatic conveying pipeline. Preferably, the stirring tank of the powder mixer 8 is vacuum, so that the twin screws can stir and mix the powder.

[0056] Optionally, a cooling layer is further included, and the cooling layer surrounds the tank body 2 and is arranged on the outer wall of the tank body 2, and a coolant flows in the cooling layer.

[0057] Embodiment 2

[0058] Please refer to Fig.11 The difference between this embodiment and the above embodiment is that the tank body 2 includes a mixing barrel 17 and a reflux barrel 18 which are nested, the top of the mixing barrel 17 is connected to the top of the reflux barrel 18, and the bottom of the mixing barrel 17 is connected to the bottom of the reflux barrel 18 through the guide cone 3 and the stirring assembly in sequence. That is, the side wall of the guide cone 3 is connected to the inner wall of the mixing barrel 17.

[0059] In summary, in the internal circulation solid-liquid mixing system provided by the present invention, the guide cone bucket at the bottom of the solid-liquid mixer tank is connected to the stirring assembly, and the output end of the stirring assembly faces the outer wall of the guide cone bucket, so that the mixed liquid flows along the guide cone bucket to the inner wall of the tank body, and then flows back into the guide cone bucket along the inner wall of the tank body to form a circulation, thereby ensuring that the materials are fully mixed and effectively improving the mixing uniformity of the materials.

[0060] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An internal circulation solid-liquid mixing system, comprising a solid-liquid mixer, wherein the solid-liquid mixer comprises a tank body, a stirring assembly and a driving member for driving the stirring assembly, characterized in that: It also includes a guide cone bucket disposed in the tank body, the guide cone bucket is disposed close to the bottom of the tank body, the stirring assembly is disposed at the bottom of the guide cone bucket and is connected to the guide cone bucket, the output end of the stirring assembly is disposed toward the outer wall of the guide cone bucket, and the outer wall of the guide cone bucket is inclined toward the inner wall of the tank body; The stirring assembly comprises a dispersion wheel, a shearing disk and a stirring barrel, the guide cone bucket is embedded in the top of the shearing disk, the dispersion wheel is rotatably arranged in the shearing disk, and the shearing disk is accommodated in the stirring barrel; The shear plate comprises a primary shear hole, a secondary shear hole and a vertical guide cavity which are connected in sequence, the primary shear hole is arranged near the bottom of the shear plate, a cavity is formed between the mixing barrel and the shear plate, the internal space of the shear plate is connected to the cavity through the primary shear hole, the secondary shear hole and the vertical guide cavity are arranged in the cavity, and the outlet of the vertical guide cavity is arranged toward the outer wall of the guide cone bucket; The dispersion wheel comprises turbine blades, spiral blades, and a connected central shaft and outer ring, the turbine blades are arranged on the side wall of the central shaft, the spiral blades are arranged obliquely on the inner side wall of the outer ring, and the primary shearing hole is located between the turbine blades and the spiral blades; It also includes a spiral groove, which is arranged on the outer side wall of the outer ring, and the outer side wall of the outer ring is in contact with the inner side wall of the mixing barrel; The mixing barrel is provided with a material changing valve, and the material changing valve is arranged close to the primary shearing hole.

2. The internal circulation solid-liquid mixing system according to claim 1, characterized in that: It also includes a propulsion paddle and a shearing wheel. The propulsion paddle, the shearing wheel and the dispersion wheel are respectively arranged in the shearing disk from top to bottom.

3. The internal circulation solid-liquid mixing system according to claim 1, characterized in that: It also includes a tank cover guide plate, which is arranged on the top of the inner wall of the tank body and is inclined toward the center line of the tank body.

4. The internal circulation solid-liquid mixing system according to claim 1, characterized in that: The tank body is provided with a liquid feed inlet and a powder feed inlet, and the liquid feed inlet and the powder feed inlet are respectively arranged close to the top of the tank body.

5. The internal circulation solid-liquid mixing system according to claim 4, characterized in that: It also includes a powder mixer and a liquid weighing device. The powder mixer is connected to the powder feed port, and the liquid weighing device is connected to the liquid feed port.

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