Continuous powder-liquid high-efficiency mixing and stirring device

Abstract

The present application relates to powder-liquid mixing and stirring device technical field, specifically relates to continuous powder-liquid high-efficiency mixing and stirring equipment.The continuous powder-liquid high-efficiency mixing and stirring equipment, including shell, powder conveying device, liquid conveying device, mixing platform, dispersing device, stirring device, powder conveying device is used to convey powder from top to bottom into the lower shell, liquid conveying device is used to convey liquid from bottom to top into the lower shell, dispersing device is arranged on the mixing platform, is used to diffuse and mix solution and powder sent into the lower shell, and one end of the stirring arm extends into the mixing cavity.The stirring device for realizing high-efficiency powder-liquid mixing provided by the present application can realize continuous processing, ensure the high-quality generation of the mixture, effectively reduce the occurrence of secondary agglomeration, improve the mixing uniformity, and through the stirring and mixing of the stirring device again, ensure the continuous processing of the mixture, and further improve the production efficiency of the device.

Description

Technical Field

[0001] This invention relates to the field of powder-liquid mixing and stirring devices, specifically to a continuous powder-liquid high-efficiency mixing and stirring equipment. Background Technology

[0002] In existing powder-liquid mixing devices, secondary agglomeration often occurs when the liquid and powder come into contact during the mixing process, resulting in the powder not being fully and uniformly dispersed in the liquid. This phenomenon is particularly pronounced when the liquid has a high viscosity, leading to unstable mixture quality. Furthermore, existing mixing devices typically do not perform adequate pretreatment before mixing the powder and liquid, resulting in low mixing efficiency and a tendency for the mixture to adhere to the inner walls of the equipment, increasing the difficulty of cleaning and maintenance.

[0003] To address these issues, patent application number 201410275951.X discloses a powder-liquid mixing device that mixes introduced powder and liquid to generate a slurry. The powder-liquid mixing device includes: a powder supply unit with a hopper that conveys powder introduced from a powder inlet to the powder-liquid mixing unit; and the powder-liquid mixing unit with a movable scraper that mixes the powder supplied from the powder supply unit and the liquid introduced from the liquid inlet, and scrapes off the powder-liquid mixture adhering to the inner wall of the housing. The hopper of the powder supply unit and the movable scraper of the powder-liquid mixing unit rotate at a predetermined rotational speed as a single unit.

[0004] Existing powder-liquid mixing devices have limited effectiveness when dealing with high-viscosity liquids and typically require additional pretreatment equipment, increasing system complexity and cost. Therefore, designing a mixing device that can efficiently mix powders and liquids, reduce secondary agglomeration, and simultaneously simplify equipment structure and lower costs has become an important research topic in the current technical field. In view of this, the present invention is proposed. Summary of the Invention

[0005] This invention provides a stirring device for achieving efficient powder-liquid mixing and a wet dyeing and finishing process for leather blanks, thus solving the above-mentioned problems.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a continuous powder-liquid high-efficiency mixing and stirring device, comprising a shell, a powder conveying device, a liquid conveying device, a mixing platform, a dispersing device, and a stirring device. The shell includes an upper shell and a lower shell arranged vertically. The top of the upper shell has a powder inlet, and the bottom of the lower shell has a discharge outlet. The powder conveying device is disposed inside the upper shell for conveying powder from top to bottom into the lower shell. The liquid conveying device is disposed inside the lower shell for conveying liquid from bottom to top into the lower shell. The mixing platform is disposed inside the lower shell, dividing the lower shell into a dispersing chamber and a mixing chamber. The part above the top surface of the mixing platform is the dispersing chamber, and the part below the top surface of the mixing platform is the mixing chamber. The dispersing device is disposed on the mixing platform for diffusing and mixing the solution and powder fed into the lower shell. The stirring device includes a rotatable stirring arm disposed inside the lower shell, one end of which extends into the mixing chamber.

[0007] Furthermore, the powder conveying device includes a rotating funnel and a hopper driving mechanism. The rotating funnel is rotatably disposed inside the upper housing, and the flared end of the rotating funnel is connected to the powder inlet, while the constricted end is connected to the lower housing. The powder entering through the powder inlet of the upper housing enters the lower housing through the rotating funnel, and the hopper driving mechanism is used to drive the rotating funnel to rotate.

[0008] Furthermore, the powder conveying device also includes a fixed scraper, which is fixedly disposed relative to the rotating funnel and close to the inner wall of the rotating funnel. When the rotating funnel rotates, the fixed scraper removes the powder adhering to the inner wall of the rotating funnel.

[0009] Furthermore, the liquid delivery device includes an inlet pipe and a delivery pump. One end of the inlet pipe is an inlet located on the lower side of the lower housing, and the other end is an outlet extending to the mixing platform. The delivery pump is connected to the inlet and provides power to the liquid, causing the liquid to enter from the inlet below the lower housing and flow out from the outlet inside the lower housing.

[0010] Furthermore, the dispersing device includes dispersing blades, a rotating shaft, and a motor. The dispersing blades are disposed above the mixing platform, the rotating shaft is connected to the dispersing blades, and the motor is connected to the rotating shaft to drive the dispersing blades to rotate.

[0011] Furthermore, the dispersing blades include upper blades and lower blades, the diameter of the lower blades is larger than that of the upper blades, and the upper and lower blades are staggered.

[0012] Furthermore, the lower blades are positioned at the liquid outlet of the mixing platform.

[0013] Furthermore, the stirring arm is positioned close to the inner wall of the lower housing, and one end is connected to the rotating funnel. The stirring arm rotates as the rotating funnel rotates.

[0014] Furthermore, the stirring device also includes stirring blades, which are disposed at one end of the stirring arm that extends into the mixing chamber, and the stirring blades and the stirring arm are L-shaped.

[0015] Furthermore, the stirring device also includes a mixing plate, which is disposed on the stirring blades to increase the area of ​​the stirring blades.

[0016] As described above, the mixing device for efficient powder-liquid mixing provided by this invention enables continuous processing by conveying powder and liquid through separate powder and liquid conveying devices. This not only improves processing efficiency but also reduces the possibility of human error, thereby enhancing the precision and consistency of the production process. It allows for precise control of key parameters such as the supply ratio of liquid and powder, mixing time, and dispersing force. These features ensure high-quality mixture generation and avoid errors that may occur with manual operation. The powder and liquid are diffused by a dispersing device before contact with the liquid, effectively reducing secondary agglomeration and improving mixing uniformity. By adjusting the rotation speed of the rotating blades of the dispersing device, the intensity and speed of the mixing process can be controlled, adapting to different powder and liquid properties. This design allows the system to flexibly meet various production needs. The mixture of liquid and powder is collected in the mixing chamber and stirred again by the agitator. The discharge device efficiently discharges the mixture outside the lower shell, ensuring continuous processing of the mixture and further improving the production efficiency of the device. Attached Figure Description

[0017] Figure 1 is a schematic diagram of the structure of the continuous powder-liquid high-efficiency mixing and stirring equipment of the present invention; Figure 2 is a schematic diagram of the powder conveying device of the continuous powder-liquid high-efficiency mixing and stirring equipment of the present invention; Figure 3 is a schematic diagram of the stirring device of the continuous powder-liquid high-efficiency mixing and stirring equipment of the present invention. Detailed Implementation

[0018] The present invention will be further described below through specific embodiments.

[0019] To make the technical means, creative features, objectives, and effects of this invention easily understandable, The present invention will be further described below with reference to specific embodiments.

[0020] Referring to Figures 1 to 3, a continuous powder-liquid high-efficiency mixing and stirring device includes a shell 1, a powder conveying device 2, a liquid conveying device 3, a mixing platform 4, a dispersing device 5, a stirring device 6, and a discharge device 7. The housing 1 includes an upper housing 11 and a lower housing 12 arranged vertically. The top of the upper housing 11 has a powder inlet 111, and the bottom of the lower housing 12 has a discharge outlet 121. A powder conveying device 2 is installed inside the upper housing 11 for conveying powder from top to bottom into the lower housing 12. The powder conveying device 2 includes a rotating funnel 21, a fixed scraper 22, and a hopper drive mechanism 23. The rotating funnel 21 is rotatably installed inside the upper housing 11, with its flared end communicating with the powder inlet 111 and its constricted end communicating with the lower housing 12. The powder entering through the powder inlet 111 of the upper housing 11 flows through the rotating funnel 21 into the lower housing 12. The fixed scraper 22 is fixed to the upper housing 11 and is positioned relative to the rotating funnel 21, close to the inner wall of the rotating funnel 21. The number of fixed scrapers 22 can be multiple or one or more. The hopper drive mechanism 23 drives the rotating funnel 21 to rotate and includes a motor 231 and a transmission device 232. The motor 231 is installed in the upper housing 11. Externally, the transmission device 232 is located inside the upper housing 11 and connected to the rotating funnel 21. The motor 231 drives the rotating funnel 21 to rotate slowly through the transmission device 232. When the rotating funnel 21 conveys powder into the lower housing 12, the slow rotation of the rotating funnel 21 can prevent the powder from adhering to the inner wall surface of the rotating funnel 21. When the fixed scraper 22 is used, it can further remove the powder adhering to the inner wall of the rotating funnel 21, so that the adhering material falls off completely. The liquid conveying device 3 is used to convey liquid into the lower housing 12 from bottom to top. The liquid conveying device 3 includes an inlet pipe 31 and a delivery pump 32. One end of the inlet pipe 31 is an inlet 311 opened on the lower side of the lower housing 12, and the other end is an outlet 312 extending to the mixing platform 4. The delivery pump 32 is connected to the inlet 311. The liquid enters from the inlet 311 below the lower housing 12 and flows out from the outlet 312 inside the lower housing 12. The delivery pump 32 provides power to the liquid. A mixing platform 4 is disposed inside the lower housing 12. The mixing platform 4 is arranged directly below the rotating funnel 21 and protrudes upward from the bottom surface of the lower housing 12. The lower housing 12 is divided into a dispersion chamber 122 and a mixing chamber 123. The dispersion chamber 122 is located above the top surface of the mixing platform 4, and the mixing chamber 123 is located below the top surface of the mixing platform 4. The powder conveying device 2 and the liquid conveying device 3 continuously supply a predetermined amount of liquid and powder to the mixing platform 4. The dispersion device 5 effectively diffuses and mixes the solution and powder. The dispersion device 5 is mounted on the mixing platform and is used to diffuse and mix the solution and powder fed into the lower housing. It includes dispersion blades 51, a rotating shaft 52, and a motor 53. The dispersion blades 51 are positioned above the mixing platform. The rotating shaft 52 is connected to the dispersion blades 51 to drive their rotation. The motor 53 is connected to the rotating shaft 52. The dispersion blades 51 include an upper blade 511 and a lower blade 512. The diameter of the lower blade 512 is larger than that of the upper blade 511, and the blades of the upper blade 511 and lower blade 512 are staggered, meaning they fill the gaps between each other. The powder falls from the rotating funnel 21 and contacts the upper blade 511, where it is dispersed and diffused in the dispersion chamber 122. The lower blade 511 is located at the liquid outlet 312 of the mixing platform. At the point where the liquid flows out from the outlet 312 of the mixing platform, when the liquid comes into contact with the lower blade 512, it is dispersed by the lower blade and diffuses radially. After the powder in the mixing chamber 123 is dispersed, it can be evenly distributed in the liquid, thus effectively suppressing secondary agglomeration of particles, reducing the phenomenon of secondary agglomeration, and increasing the mixing efficiency. The stirring device 6 is used to stir the solution in the mixing chamber 123. It includes a stirring arm 61, stirring blades 62, and a mixing plate 63. The stirring arm 61 is rotatably disposed within the lower housing 12, with one end extending into the mixing chamber 123. This allows it to function as a stirring component for the mixture in the mixing chamber 123 when it moves. The stirring arm 61 is connected to a rotating funnel 21. When the rotating funnel 22 rotates, the stirring arm 6 rotates. The stirring arm 6 is positioned close to the inner wall of the lower housing 12, and its rotation removes powder from the inner wall of the lower housing 12. The stirring blades 62 are disposed at the end of the stirring arm 61 extending into the mixing chamber 123. The stirring blades 61 further enhance the mixing degree of the mixture. The stirring blades 61 are positioned close to the bottom surface of the lower housing 12 and are L-shaped with the stirring arm 6. The stirring blades 61 scrape the bottom surface of the lower housing 12, preventing powder from adhering to the lower housing 12. On the bottom surface, the mixing plate 63 is disposed on the stirring blade 61 to increase the area of ​​the stirring blade 62 and to easily form a vortex during the stirring process, thereby increasing the stirring efficiency; The unloading device 7 is connected to the outlet 121 for discharging the mixed solution in the lower housing 12. The unloading device 7 includes a discharge pipe 71, a valve assembly 72 disposed on the discharge pipe, and a piston pump 73. The discharge pipe 71 is connected to the outlet 121. The valve assembly 72 includes a first valve 721 and a second valve 722. The piston pump 73 is disposed between the first valve 721 and the second valve 722. By controlling the piston pump 73, the first valve 721, and the second valve 722, the mixed solution can be discharged. The mixture located in the mixing chamber 123 is sucked into the outlet 121 and discharged to the outside of the device through the discharge pipe 71. The number of unloading devices 7 is arbitrary, and only one unloading device 7 can be used. However, it is preferred that multiple unloading devices 7 be distributed at uniform intervals to discharge the mixture in a good balance.

[0021] Referring to Figures 1 to 3, the process flow of the above-mentioned continuous powder-liquid high-efficiency mixing and stirring equipment is as follows: Solid powder is conveyed from top to bottom into the downward housing 12 via powder conveying device 2; liquid is conveyed from bottom to top into the downward housing 12 via liquid conveying device 3. When liquid and powder are continuously supplied to the mixing platform 4, the dispersion device 5 effectively diffuses and mixes the solution and powder. Specifically, the powder falling from above is dispersed by the rotation of the upper blade 511 before it comes into contact with the liquid, and the powder is evenly distributed in the dispersion chamber 122. The liquid flows out from the liquid outlet 33 on the top surface of the mixing platform 4. When the liquid comes into contact with the lower blade 512, it is dispersed by the lower blade and diffuses radially. After the powder in the mixing chamber 123 is dispersed, it can be evenly distributed in the liquid, thus effectively suppressing secondary agglomeration of particles, reducing secondary agglomeration, and increasing mixing efficiency. The stirring arm 6 rotates to stir the solution in the mixing chamber 123, fully mixing the powder and liquid to make them uniformly mixed. The mixed liquid is discharged through the unloading device 7.

[0022] As can be seen from the above description of the present invention, compared with the prior art, the continuous powder-liquid high-efficiency mixing and stirring equipment provided by the present invention enables continuous processing by conveying powder and liquid through powder conveying device 2 and liquid conveying device 3, respectively. This not only improves processing efficiency but also reduces the possibility of human error, thereby improving the precision and consistency of the production process. It allows for precise control of key parameters such as the supply ratio of liquid and powder, mixing time, and dispersing force. These features ensure the high-quality generation of the mixture and avoid errors that may occur during manual operation. Before contact with the liquid, the powder and liquid are diffused by the dispersion device 5, which effectively reduces secondary agglomeration and improves mixing uniformity. By adjusting the rotation speed of the rotating blades of the dispersion device 5, the intensity and speed of the mixing process can be controlled, thus adapting to different powder and liquid properties. This design allows the system to flexibly meet various production needs. The mixture of liquid and powder is collected in the mixing chamber 123 and mixed again by the stirring device 6. The unloading device efficiently discharges the mixture outside the lower shell 12, ensuring continuous processing of the mixture and further improving the production efficiency of the device.

[0023] The above are merely some specific embodiments of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantial modifications made to the present invention using this concept shall be deemed to infringe upon the protection scope of the present invention. Behavior.

Claims

1. A continuous powder-liquid high-efficiency mixing and stirring equipment, characterized in that: The device includes a housing, a powder conveying device, a liquid conveying device, a mixing platform, a dispersing device, and a stirring device. The housing comprises an upper housing and a lower housing arranged vertically. The upper housing has a powder inlet at its top, and the lower housing has a outlet at its bottom. The powder conveying device is located inside the upper housing and is used to convey powder from top to bottom into the lower housing. The liquid conveying device is used to convey liquid from bottom to top into the lower housing. The mixing platform is located inside the lower housing and divides the lower housing into a dispersing chamber and a mixing chamber. The area above the top surface of the mixing platform is the dispersing chamber, and the area below the top surface of the mixing platform is the mixing chamber. The dispersing device is located on the mixing platform and is used to diffuse and mix the solution and powder fed into the lower housing. The stirring device includes a rotatable stirring arm located inside the lower housing, with one end of the stirring arm extending into the mixing chamber.

2. The continuous powder-liquid high-efficiency mixing and stirring equipment according to claim 1, characterized in that: The powder conveying device includes a rotating funnel and a hopper driving mechanism. The rotating funnel is rotatably disposed inside the upper shell, and the flared end of the rotating funnel is connected to the powder inlet, and the constricted end is connected to the lower shell. The powder entering through the powder inlet of the upper shell enters the lower shell through the rotating funnel. The hopper driving mechanism is used to drive the rotating funnel to rotate.

3. The continuous powder-liquid high-efficiency mixing and stirring equipment according to claim 2, characterized in that: The powder conveying device also includes a fixed scraper, which is fixedly disposed relative to the rotating funnel and close to the inner wall of the rotating funnel. When the rotating funnel rotates, the fixed scraper removes the powder adhering to the inner wall of the rotating funnel.

4. The continuous powder-liquid high-efficiency mixing and stirring equipment according to claim 1, characterized in that: The liquid delivery device includes an inlet pipe and a delivery pump. One end of the inlet pipe is an inlet located on the lower side of the lower housing, and the other end is an outlet extending to the mixing platform. The delivery pump is connected to the inlet and provides power to the liquid, causing the liquid to enter from the inlet below the lower housing and flow out from the outlet inside the lower housing.

5. The continuous powder-liquid high-efficiency mixing and stirring equipment according to claim 1, characterized in that: The dispersing device includes dispersing blades, a rotating shaft, and a motor. The dispersing blades are disposed above the mixing platform, the rotating shaft is connected to the dispersing blades, and the motor is connected to the rotating shaft to drive the dispersing blades to rotate.

6. The continuous powder-liquid high-efficiency mixing and stirring equipment according to claim 5, characterized in that: The dispersing blades include upper blades and lower blades, the diameter of the lower blades is larger than that of the upper blades, and the upper and lower blades are staggered.

7. The continuous powder-liquid high-efficiency mixing and stirring equipment according to claim 6, characterized in that: The lower blades are positioned at the liquid outlet of the mixing platform.

8. The continuous powder-liquid high-efficiency mixing and stirring equipment according to claim 1, characterized in that: The stirring arm is positioned close to the inner wall of the lower shell, and one end is connected to the rotating funnel. The stirring arm rotates as the rotating funnel rotates.

9. The continuous powder-liquid high-efficiency mixing and stirring equipment according to claim 1, characterized in that: The stirring device also includes stirring blades, which are disposed at one end of the stirring arm that extends into the mixing chamber, and the stirring blades and the stirring arm are L-shaped.

10. The continuous powder-liquid high-efficiency mixing and stirring equipment according to claim 1, characterized in that: The stirring device also includes a mixing plate, which is disposed on the stirring blades to increase the area of ​​the stirring blades.

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