EP4674520A1

EP4674520A1 - Efficient mixing equipment

Info

Publication number: EP4674520A1
Application number: EP24185944.6A
Authority: EP
Inventors: Bian Huimin; Li Zhiping; Wen Xufeng; Zheng Shaoyong; Chen Jiyu; Chen Qing
Original assignee: Individual
Current assignee: Individual
Priority date: 2024-07-02
Filing date: 2024-07-02
Publication date: 2026-01-07

Abstract

The present application discloses an efficient stirring device 100, which includes a stirring tank body 101 forming an inner tank space to accommodate a mixture of powder materials and liquid materials; a stirring paddle103 and a stirring main shaft 104, at least a portion of which is disposed within the inner tank space and rotates around a central axis; a stirring motor 105; and the efficient stirring device further includes: a plurality of scraping members 101 rotatably disposed within the inner tank space to scrape off the mixture adhering to the inner wall of the stirring tank body when rotating on their own axes; a plurality of transmission shafts 107, at least a portion of which is disposed within the inner tank space; a power main shaft 108 for driving the transmission shafts to rotate on their own axes and to revolve around the central axis; and a scraping motor 109 for driving the scraping main shaft to rotate. Among them, the scraping members are connected to the transmission shafts in a non-rotating manner to move with the transmission shafts, and the transmission shafts are disposed parallel to the power main shaft. The advantage of the present application is that it provides an efficient stirring device that improves the wetting efficiency by disposing scraping members within the inner tank space that rotate on their own axes and revolve to scrape off the mixture adhering to the inner wall of the stirring tank body.

Description

Technical Field

This application relates to the field of mixing equipment, specifically, it relates to an efficient mixing device.

Technical Background

In the fields of new energy batteries, food, medicine, chemicals, and so on, there are numerous situations where powder particles and liquids need to be mixed to produce slurries. Generally, a dispersing disc is used to prepare slurries with low to medium solid content and viscosity.
During actual production, the powder and liquid are not fully wetted in the initial stage of mixing, and the mixture is basically in a dry state with extremely poor fluidity. As the dispersing disc rotates, it continuously throws the mixture towards the inner wall of the mixing tank. Due to the poor fluidity of the slurry, the mixture continues to accumulate on the inner wall of the mixing tank. This part of the mixture is weakly affected by the dispersing disc and is difficult to participate in the stirring of the dispersing disc, which affects the wetting and stirring efficiency.

Summary of the Invention

This part of the application introduces the ideas in a concise form, which will be described in detail in the specific implementation part later. The content part of this application is not intended to identify the key or essential features of the technical solution to be protected, nor is it intended to limit the scope of the technical solution to be protected.
To solve the technical problems mentioned in the above background technology section, some embodiments of this application provide a high-efficiency mixing device, which includes: a mixing tank body that forms an internal space for accommodating a mixture of powder and liquid materials; a mixing paddle that is rotatably arranged in the internal space to agitate the mixture of powder and liquid materials; a mixing spindle that is at least partially located in the internal space and rotates around a central axis; a mixing motor that directly or indirectly drives the mixing spindle to rotate; wherein the mixing paddle is non-rotatably connected to the mixing spindle to rotate with the mixing spindle; the high-efficiency mixing device also includes: a plurality of scraper elements that are rotatably arranged in the internal space to scrape off the mixture adhering to the inner wall of the mixing tank body during rotation; a plurality of drive shafts that are at least partially located in the internal space; a driving spindle that drives the drive shafts to rotate and revolve around the central axis; a scraper motor that drives the driving spindle to rotate; wherein the scraper elements are non-rotatably connected to the drive shafts to move with the drive shafts, and the drive shafts are arranged parallel to the driving spindle.
Furthermore, the transmission shaft is arranged in parallel with the power main shaft.
Furthermore, the plurality of scraping members are disposed at different circumferential positions, the scraping members include: A plurality of paddle sections, used to rotate and contact the inner wall of the stirring tank body during the rotation of the scraping members, scraping off the mixture adhering to the inner wall of the stirring tank body; a plurality of connecting sections, disposed between the paddle sections to connect the paddle sections; wherein, at least one of the connecting sections is non-rotatably connected to the transmission shaft.
Furthermore, the paddle sections of the scraping members are symmetrically arranged relative to the axis of the transmission shaft.
Furthermore, the paddle sections have at least a cylindrical surface that is parallel to the central axis.
Furthermore, the paddle sections are arranged in a direction parallel to the central axis; the connecting sections are arranged radially, and a plurality of connecting sections are disposed at different axial positions.
Furthermore, the efficient mixing device also includes: an intermediate shaft disposed between the main power shaft and the transmission shaft to form a transmission connection between the main power shaft and the transmission shaft; a central gear mounted onto the main power shaft to rotate along with the main power shaft; a first bevel gear mounted onto one end of the intermediate shaft and engaged with the central gear; a second bevel gear mounted onto the other end of the intermediate shaft; a third bevel gear mounted onto the transmission shaft and engaged with the second bevel gear; wherein, the intermediate shaft is perpendicular to both the main power shaft and the transmission shaft.
Furthermore, the efficient mixing device also includes: a movable member configured with a movable cavity that allows at least a portion of the transmission shaft to be inserted; an elastic member disposed within the movable cavity and in contact with one end of the transmission shaft; wherein, the movable member is rotationally fixed to the transmission shaft, and the movable member is fixedly connected to the scraping member.
Furthermore, the efficient mixing device also includes: a driving wheel mounted onto the output shaft of the stirring motor; a driven wheel mounted onto the stirring main shaft to drive the rotation of the stirring main shaft; a transmission belt used to form a transmission connection between the driving wheel and the driven wheel; a speed measurement sensor disposed near the driven wheel to detect the rotational speed of the driven wheel; a controller used to control the operation of the stirring motor based on the speed signal of the stirring main shaft detected by the speed measurement sensor; wherein, the speed measurement sensor is electrically connected to the controller to enable signal interaction between the controller and the speed measurement sensor.
Furthermore, the efficient mixing device also includes: mechanical seal, mounted on the stirring main shaft to form a seal between the stirring main shaft and the stirring tank body; a seal seat, mounted on the mechanical seal, with a cooling chamber formed between it and the mechanical seal. The seal seat is also equipped with a liquid inlet for coolant input and a liquid outlet for coolant outflow; a liquid storage tank, used to store coolant; a liquid pump, used to pump the coolant to enable it to circulate between the liquid storage tank and the cooling chamber; wherein, the liquid storage tank is connected to the liquid outlet through a return pipe, the liquid storage tank is connected to the liquid pump through an outlet pipe, and the liquid pump is connected to the liquid inlet through a pumping pipe.
The beneficial effects of this application lie in: providing an efficient stirring device that utilizes a scraping member with both revolution and rotation to scrape off the mixture adhering to the inner wall of the stirring tank within the tank space, thereby improving the wetting efficiency.

Brief Description of the Drawings

The accompanying drawings, which form a part of this application, are provided to further illustrate this application and make other features, objectives, and advantages of this application more apparent. The illustrative embodiments of the accompanying drawings and their descriptions are used to explain this application and do not constitute undue limitations on this application.
In addition, throughout the drawings, identical or similar reference numerals represent identical or similar elements. It should be understood that the drawings are schematic, and the components and elements are not necessarily drawn to scale.
In the figures:

Figure 1 is an overall schematic diagram of an efficient stirring device according to an embodiment of the present application;
Figure 2 is a perspective structural diagram of the efficient stirring device shown in Figure 1 in another state;
Figure 3 is an internal structural diagram of the efficient stirring device shown in Figure 1;
Figure 4 is an internal structural diagram of a part of the efficient stirring device shown in Figure 1;
Figure 5 is an enlarged diagram of a part of Figure 1;
Figure 6 is an internal structural diagram of another part of the efficient stirring device shown in Figure 1;
Figure 7 is a perspective structural diagram of a part of the efficient stirring device shown in Figure 1;
Figure 8 is a side view of a part of the efficient stirring device shown in Figure 1;
Figure 9 is a side view of a part of the structure shown in Figure 1;

In the drawings:

100 - Efficient stirring device;
101 - Stirring tank body; 101a - Tank internal space; 101b - Outlet; 101c - Cooling jacket; 101d - Liquid inlet end; 101e - Liquid outlet end;
1011 - Outer tank body; 1012 - Inner tank body;
102 - Lid; 103 - Stirring paddle; 104 - Stirring main shaft; 105 - Stirring motor;
106 - Scraping member; 1061 - Paddle section; 1062 - Connection section;
107 - Transmission shaft; 108 - Power main shaft; 109 - Scraping motor; 110 - Reducer; 111 - Driven gear; 112 - Driving gear;
113 - Central gear; 114 - Intermediate shaft; 115 - First bevel gear; 116 - Second bevel gear;
117 - Third bevel gear; 118 - First transmission box; 119 - Second transmission box; 120 - First protective shaft sleeve; 121 - Second protective shaft sleeve; 122 - Moving part; 122a - Moving chamber; 123 - Elastic member;
124 - Driving wheel; 125 - Driven wheel; 126 - Transmission belt; 127 - Speed measuring sensor;
128 - Sleeve; 129 - Mechanical seal; 130 - Seal seat;
130a - Cooling chamber; 130b - Liquid inlet; 130c - Liquid outlet;
131 - Liquid storage tank; 132 - Liquid pump;
133 - Equipment frame; 1331 - Base; 1332 - Upright column;
134 - Electrical control cabinet; 135 - Hydraulic station;
136 - Guide rail; 137 - Slider; 138 - Connecting frame; 139 - Hydraulic cylinder; 140 - Outer shell; 141 - Accordion cover.

Detailed Description of the Invention

The following will describe the embodiments of the present disclosure in more detail with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be interpreted as being limited to the embodiments described here. On the contrary, these embodiments are provided to gain a more thorough and comprehensive understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are merely for illustrative purposes and do not limit the scope of protection of the present disclosure.
In addition, it should be noted that, for ease of description, only the parts related to the present application are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.
In the description of the present disclosure, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are used to indicate direction or positional relationships, they are based on the direction or positional relationship shown in the drawings or the conventional placement direction or positional relationship when the product is used, and are merely for the purpose of facilitating the description of the present disclosure and simplifying the description, rather than indicating or implying that the device or element must have a specific direction or be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present disclosure. Furthermore, terms such as "first", "second", etc., in the description of the present disclosure are used only for distinction and cannot be interpreted as indicating or implying relative importance.
In the description of the present application, it should also be noted that unless otherwise specifically stipulated and defined, the terms "set", "installed", "connected", and "linked" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections or indirect connections through intermediate media; they can refer to the internal communication between two elements. For those skilled in the art, the specific meanings of these terms in the present application can be understood based on specific situations.
It should be noted that the modifiers "one" and "multiple" mentioned in this application are indicative rather than restrictive. Technical personnel in this field should understand that, unless otherwise explicitly stated in the context, they should be interpreted as "one or more".
The following will provide a detailed description of the present disclosure with reference to the drawings and embodiments.
As shown in Figures 1 to 3, the efficient mixing device 100 of the present application includes: a mixing tank body 101, a cover 102, a mixing paddle 103, a mixing spindle 104, a mixing motor 105, a device frame 133, and other components.
Specifically, the mixing tank body 101 forms an internal tank space 101a that accommodates a mixture of powder and liquid materials. The cover 102 is detachably connected to the mixing tank body 101 to close the internal tank space 101a during mixing of the mixture, and when the cover 102 is separated from the mixing tank body 101,allowing for the addition of powder and liquid materials into the internal tank space 101a The mixing paddle 103 is rotatably installed at the bottom of the internal tank space 101a, stirring the mixture of powder and liquid materials in the internal tank space 101a to achieve uniform mixing. The mixing spindle 104 is partially located within the internal tank space 101a and forms a non-rotatable connection with the mixing paddle 103. The mixing spindle 104 rotates around a central axis under the drive of the mixing motor 105, thereby driving the mixing paddle 103 to rotate and perform high-speed stirring of the mixture of powder and liquid materials in the internal tank space. The uniformly mixed slurry is then discharged through an outlet 101b, and 101b remains closed during the mixing process.
During the initial stages of mixing, the powder and liquid materials are not fully saturated, and the mixture is basically in a dry and agglomerated state, with extremely poor fluidity. As the mixing paddle 103 rotates, it continuously throws the mixture against the inner wall of the mixing tank body 101. Due to the poor fluidity of the slurry, the mixture tends to accumulate on the inner wall of the mixing tank body 101. This portion of the mixture is weakly affected by the mixing paddle 103 and has difficulty participating in the mixing paddle 103's stirring process, affecting the saturation and mixing efficiency.
As shown in Figures 3 and 4, the efficient mixing device 100 of the present application further includes: a scraping element 106, a transmission shaft 107, a power spindle 108, and a scraping motor 109. The scraping element 106 is rotatably installed in the internal tank space 101a and can rotate in contact with the inner wall of the mixing tank body 101, scraping off the mixture adhering to the inner wall of the mixing tank body 101. The transmission shaft 107 is arranged parallel to the power spindle 108, with at least a portion extending into the internal tank space 101a and forming a non-rotatable connection with the scraping element 106, thereby driving the rotation of the scraping element 106. The power spindle 108 is driven by the scraping motor 109 to rotate, further driving the rotation and revolution of the transmission shaft 107 around the central axis. Specifically, the scraping motor 109, through a reducer 110, drives the rotation of the power spindle 108, and the power spindle 108 is equipped with a driven gear 111. The output end of the reducer 110 is connected to a driven gear 111 engaged by the driving gear 112. The engagement of the driving gear 112 and the driven gear 111 realizes the transmission of power from the reducer 110 to the power spindle 108.
With this solution, the scraping element 106 rotates around the transmission shaft 107 while also revolving around the central axis, the mixing paddle 103 continuously scrapes off the mixture that is thrown onto the inner wall of the mixing tank body 101 in a full circle, significantly improving the saturation efficiency. At the same time, after the saturation process is completed, the mixing paddle 103 rotates at a high speed, and the scraping element 106 plays a role in disturbing the flow, allowing the mixture to be fully agitated and enabling the liquid material to fully mix with the powder material, improving the mixing effect.
As shown in Figures 3 and 4, as an optimized solution, the efficient mixing device 100 of the present application further includes: a central gear 113, an intermediate shaft 114, a first bevel gear 115, a second bevel gear 116, and a third bevel gear 117. The central gear 113 is mounted on one end of the power spindle 108, and the central gear 113 in this application adopts a bevel gear design. The intermediate shaft 114 is located between the power spindle 108 and the transmission shaft 107, and is perpendicular to both the power spindle 108 and the transmission shaft 107. To achieve the power transmission function of the intermediate shaft 114, on one end of the intermediate shaft 114, a central gear 113 engages with a first bevel gear 115, and a second bevel gear 116 is installed on the other end. One end of the transmission shaft 107 is equipped with the second bevel gear 116 engages with a third bevel gear 117. When the power spindle 108 rotates under the drive of the scraping motor 109, the engagement of the central gear 113 with the first bevel gear 115 achieves the rotation and revolution of the intermediate shaft 114 .Then, the intermediate shaft 114, through the second bevel gear 116 and the third bevel gear 117, utilizes the transmission belt 126 to drive the rotating shaft 107 to rotate, thereby realizing the transmission of power from the power spindle 108 to the transmission shaft 107.
To restrict the movement of the intermediate shaft 114 and the transmission shaft 107 according to the above method, as an optimized solution, the efficient mixing device 100 of the present application further includes: a first transmission box 118, a second transmission box 119, a first protective shaft sleeve 120, and a second protective shaft sleeve 121. The first transmission box 118 is located at the top of the internal tank space and is installed around the end of the power spindle 108 in a rotating manner. The central gear 113 and the first bevel gear 115 are accommodated within the first transmission box 118. One end of the intermediate shaft 114 rotatably passes through the transmission box and connects to the first transmission box 118 houses the first bevel gear 115, enabling the intermediate shaft 114 to rotate while also driving the first transmission box 118 to rotate around the power spindle 108. The second transmission box 119 is installed around the end of the intermediate shaft 114 that is far from the central gear 113, via the first protective shaft sleeve 120, is fixedly connected to the first transmission box 118, enabling it to rotate synchronously with the first transmission box 118. The first protective shaft sleeve 120 is positioned on the intermediate shaft 114, and both the second bevel gear 116 and the third bevel gear 117 are located within the second transmission box 119. The transmission shaft 107 rotatably passes through the second transmission box 119 and connects to the third bevel gear 117. The second protective shaft sleeve 121 is fixedly connected to the second transmission box 119, allowing the entire assembly of the second transmission box 119, the first protective shaft sleeve 120, and the second protective shaft sleeve 121 to rotate around the central axis. The second protective sleeve encases the transmission shaft 107, enabling the transmission shaft 107 to rotate under the drive of the intermediate shaft 114 while also revolving around the central axis under the guidance of the second protective sleeve.
As an optional transmission method, the power spindle 108 can directly drive the rotation and revolution of the transmission shaft 107 through a planetary gear transmission.
As shown in Figures 3 and 4, as an optimized solution, the power spindle 108 is rotatably installed on the cover 102. Accordingly, the scraping element 106 through the transmission shaft 107, the second protective sleeve, the second transmission box 119, the first protective shaft sleeve 120, and the second transmission box 119 is installed onto the cover 102. When the cover 102 is lifted, the scraping element 106 is lifted together with the cover 102, ensuring that there is no obstruction when adding powder or liquid materials to the mixing tank body 101 and preventing adhesion to the scraping element 106.
Furthermore, there are multiple scraping elements 106 provided, the scraping elements 106 are arranged at different circumferential positions. When these scraping elements 106 work together, they enhance the scraping and turbulence effects. Correspondingly, multiple combinations of intermediate shafts 114 and transmission shafts 107 are provided to realize the movement of corresponding scraping elements 106.
As shown in Figures 3 and 4, as a specific solution, the scraping element 106 includes: a paddle section 1061 and a connecting section 1062. Multiple paddle sections 1061 are provided, and multiple paddle sections 1061 are symmetrically arranged relative to the axis of the transmission shaft 107 and are arranged parallel to the central axis, during the rotation of the scraping element 106, it is designed to rotate and come into contact with the inner wall of the mixing tank body 101, thus scraping off the mixture adhering to the inner wall of the mixing tank body 101. Furthermore, the paddle section 1061 has at least a cylindrical surface parallel to the central axis, reducing the resistance between the scraping element 106 and the mixture, allowing the mixture to flow smoothly through the scraping element 106, accelerating the mixing of the mixture, and simultaneously reducing the friction with the inner wall of the mixing tank body 101 to avoid wear and tear. Multiple connecting sections 1062 are provided, which are arranged radially and located between the multiple paddle sections 1061 to connect the paddle sections 1061 into an integral unit. Specifically, these connecting sections 1062 are arranged at different axial positions, and at least one connecting section 1062 is non-rotatably connected to the transmission part. Similarly, the connecting sections 1062 are designed as smooth-surfaced rods to reduce resistance when in contact with the mixture.
When adding powder and liquid materials to the mixing tank body 101, it is necessary to lift the cover 102 and the scraping element 106 beforehand, and then close the cover 102 after the material addition is completed. However, the accumulated mixture inside the mixing tank body 101 creates resistance to the insertion of the scraping element 106, which can easily cause impact on the scraping element 106.
As shown in Figures 4 and 5, as an optimized solution, the efficient mixing device 100 of the present application further includes: a movable member 122 and an elastic member 123. The movable member 122 is fixedly connected to the scraping element 106 and at least a portion of transmission shaft 107 is insertable into the movable cavity 122a.The elastic member 123, which adopts a spring, is positioned within the movable cavity 122a and abuts against one end of the transmission shaft 107. By installing the elastic member 123, the impact on the scraping element 106 during closure is transmitted to the elastic member 123, the elastic member 123, contracts to provide a buffering effect. Furthermore, the movable member 122 is non-rotatably connected to the transmission shaft 107 to prevent during the operation of the scraping element 106, the movable member 122 from rotating relative to the transmission shaft 107.
As shown in Figures 3 and 6, the efficient mixing device 100 of the present application further includes: a driving wheel 124, a driven wheel 125, and a transmission belt 126. The driving wheel 124 is installed on the output shaft of the mixing motor 105, and the driven wheel 125 is installed on the mixing spindle 104. The transmission belt 126 connects the driving wheel 124 and the driven wheel 125 to form a transmission between the driving wheel 124 and the driven wheel 125, thereby driving the mixing spindle 104 to rotate.
In actual production, when the viscosity of the mixture is too high or the transmission belt 126 is loose, it can easily lead to slippage of the transmission belt 126, which is not conducive to the normal production of slurry and the safety of the equipment. Therefore, it is necessary to monitor the rotation speed of the mixing spindle 104 to determine if there is slippage of the transmission belt 126.
As shown in Figures 3 and 6, as an optimized solution, the efficient mixing device 100 of the present application further includes: a speed sensor 127 and a controller. The speed sensor 127 is installed near the driven wheel 125 to detect the rotation speed of the driven wheel 125. The controller (not shown) utilizes the speed signal detected by the speed sensor 127 of the mixing spindle 104 to control the operation of the mixing motor 105, and also outputs human-computer interaction commands based on that speed signal. Specifically, during operation, if the detected speed of the mixing spindle 104 does not match the set speed, the controller first controls the mixing motor 105 to reduce the speed. If the situation improves significantly, it indicates that the mixture has too high viscosity and a high load, and prompts the operator to adjust the process settings. If the situation does not improve significantly, it indicates that the transmission belt 126 is slipping, and prompts the operator to inspect and repair the transmission belt 126.
As shown in Figure 6, as an optimized solution, the efficient mixing device 100 of the present application further includes: a sleeve 128, a mechanical seal 129, and a seal seat 130. The sleeve 128 is fitted on the mixing spindle 104 and connected to the mixing spindle 104 through a key. The mixing paddle 103 is pressed tightly onto the sleeve 128 and fixed with bolts to prevent loosening. The mechanical seal 129 is fitted outside the sleeve 128 to form a seal between the sleeve 128 and the mixing tank body 101, preventing the leakage of slurry inside the mixing tank body 101. The seal seat 130 is fitted on the mechanical seal 129, cooperating with the mechanical seal 129 and limiting the position of the mechanical seal 129.
When the mixing spindle 104 operates at high speed, the mechanical seal 129 generates a large amount of heat, which affects the performance of the mechanical seal 129. As an optimized solution, between the seal seat 130 and the mechanical seal 129, a cooling chamber 130a is formed. The seal seat 130 also forms a liquid inlet 130b and a liquid outlet 130c. The liquid inlet 130b supplies coolant into the cooling chamber 130a, and the liquid outlet 130c allows coolant to flow out from the cooling chamber 130a.
As shown in Figures 1 and 2, the efficient mixing device 100 of this application further includes: a liquid storage tank 131 and a liquid pump 132. The liquid storage tank 131 is installed on the equipment frame 133 for storing coolant and the liquid storage tank 131 has an external interface for replenishing coolant. The liquid pump 132 is also installed on the equipment frame 133 and used to pump the coolant, enabling the coolant to circulate between the liquid storage tank 131 and the cooling chamber 130a. Specifically, the liquid storage tank 131 is connected to the outlet 130c through a return pipe (not shown), and the liquid storage tank 131 connected to the liquid pump 132 through an outlet pipe (not shown), and the liquid pump 132 is connected to the inlet 130b through a pumping pipe (not shown). This solution cools the mechanical seal 129, effectively controlling its temperature, ensuring equipment reliability and extending its lifespan.
As shown in Figure 3, as an optimized solution, the mixing tank body 101 is configured with a cooling jacket 101c, a liquid inlet end 101d, and a liquid outlet end 101e. The cooling jacket 101c is arranged around the internal space of the tank, with the liquid inlet end 101d supplying coolant into the cooling jacket 101c and the liquid outlet end 101e allowing coolant to flow out of the cooling jacket 101c. The coolant flowing through the cooling jacket 101c continuously removes excess heat from the internal space of the tank, preventing the temperature rise from causing slurry denaturation. Specifically, the mixing tank body 101 includes an outer tank body 1011 and an inner tank body 1012, and the cooling jacket 101c is constructed between the outer tank body 1011 and the inner tank body 1012.
As shown in Figures 1 and 2, as a specific solution, the mixing tank body 101, mixing motor 105, electric control cabinet 134, hydraulic station 135, etc., are installed on the equipment frame 133. The equipment frame 133 includes a base 1331 and upright columns 1332, and the upright columns 1332 are vertically arranged on the base 1331. Among them, the mixing motor 105, mixing spindle 104, driving wheel 124, driven wheel 125, and transmission belt 126 are installed on the base 1331. Compared to traditional transmission methods, the mixing paddle 103, mixing spindle 104, and mixing motor 105 in this application have a lower height, simple structure, and are convenient for production and maintenance.
As shown in Figures 3, 8, and 9, as an optimized solution, the efficient mixing device 100 of this application further includes: a guide rail 136, a slider 137, a connecting frame 138, a hydraulic cylinder 139, an outer shell 140, and an accordion cover 141. The guide rail 136 is arranged along the height direction on the upright column 1332, and the slider 137 is slidably arranged on the guide rail 136. The slider 137 is connected to the connecting frame 138, which in turn is connected to the cover 102. The output end of the hydraulic cylinder 139 is connected to the slider 137, driving the slider 137 to slide relative to the guide rail 136, thereby moving the cover 102 up and down. The outer shell 140 covers part of the upright column 1332 to isolate the guide rail 136 from the outside, and the accordion cover 141 is arranged at the upper and lower ends of the connecting frame 138, When the slider 137 moves, the accordion cover 141 contracts adaptively.
The above description is merely some preferred embodiments of this disclosure and an explanation of the technical principles involved. Technical personnel in this field should understand that the scope of the invention described in the embodiments of this disclosure is not limited to the technical solution specifically formed by the combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, technical solutions formed by mutually replacing the above features with technically similar features disclosed in (but not limited to) the embodiments of this disclosure.

Claims

An efficient stirring device comprises:
A stirring tank body, forming an internal tank space to accommodate a mixture of powder materials and liquid materials;

A stirring paddle, rotatably disposed within the internal tank space to agitate the mixture of powder materials and liquid materials in the tank space;

A stirring main shaft, at least partially disposed within the tank space and rotating around a central axis;

A stirring motor, used to directly or indirectly drive the stirring main shaft to rotate;

Wherein, the stirring paddle is non-rotatably connected to the stirring main shaft to rotate along with the stirring main shaft;

Characterized by:
The efficient stirring device further includes:
A plurality of scraping members, rotatably disposed within the tank space to scrape off the mixture adhering to the inner wall of the stirring tank body during their own rotation;

A plurality of transmission shafts, at least partially disposed within the tank space;

A power main shaft, used to drive the transmission shafts to rotate on their own axes and

revolve around the central axis;

A scraping motor, used to drive the scraping main shaft to rotate;

Wherein, the scraping members are non-rotatably connected to the transmission shafts to move with the transmission shafts, and the transmission shafts are disposed parallel to the power main shaft.
The efficient stirring device according to Claim 1 characterized by:
The transmission shafts are disposed parallel to the power main shaft.
The efficient stirring device according to Claim 1 is characterized by:
The plurality of scraping members are disposed at different circumferential positions.

The scraping members include:
A plurality of paddle sections, used to rotate and contact the inner wall of the stirring tank body during the rotation of the scraping members, scraping off the mixture adhering to the inner wall of the stirring tank body;

A plurality of connecting sections, disposed between the paddle sections to connect the paddle sections;

Wherein, at least one of the connecting sections is non-rotatably connected to the transmission shaft.
The efficient stirring device according to Claim 3 is characterized by:
The paddle sections of the scraping members are symmetrically arranged relative to the axis of the transmission shaft.
The efficient stirring device according to Claim 4 is characterized by:
The paddle sections have at least a cylindrical surface that is parallel to the central axis.
The efficient stirring device according to Claim 4 is characterized by:
The paddle sections are arranged in a direction parallel to the central axis; the connecting sections are arranged radially, and a plurality of connecting sections are disposed at different axial positions.
The efficient stirring device according to Claim 1, wherein the efficient mixing device also includes:
An intermediate shaft disposed between the main power shaft and the transmission shaft to form a transmission connection between the main power shaft and the transmission shaft;

A central gear mounted onto the main power shaft to rotate along with the main power shaft;

A first bevel gear mounted onto one end of the intermediate shaft and engaged with the central gear;

A second bevel gear mounted onto the other end of the intermediate shaft;

A third bevel gear mounted onto the transmission shaft and engaged with the second bevel gear;

Wherein, the intermediate shaft is perpendicular to both the main power shaft and the transmission shaft.
The efficient stirring device according to Claim 1, wherein the efficient mixing device also includes:
A movable member configured with a movable cavity that allows at least a portion of the transmission shaft to be inserted;

An elastic member disposed within the movable cavity and in contact with one end of the transmission shaft;

Wherein, the movable member is rotationally fixed to the transmission shaft, and the movable member is fixedly connected to the scraping member.
The efficient stirring device according to Claim 1, wherein the efficient mixing device also includes:
A driving wheel mounted onto the output shaft of the stirring motor;

A driven wheel mounted onto the stirring main shaft to drive the rotation of the stirring main shaft;

A transmission belt used to form a transmission connection between the driving wheel and the driven wheel;

A speed measurement sensor disposed near the driven wheel to detect the rotational speed of the driven wheel;

A controller used to control the operation of the stirring motor based on the speed signal of the stirring main shaft detected by the speed measurement sensor;

Wherein, the speed measurement sensor is electrically connected to the controller to enable signal interaction between the controller and the speed measurement sensor.
The efficient stirring device according to Claim 9, wherein the efficient mixing device also includes:
Mechanical seal, mounted on the stirring main shaft to form a seal between the stirring main shaft and the stirring tank body;

A seal seat, mounted on the mechanical seal, with a cooling chamber formed between it and

the mechanical seal. The seal seat is also equipped with a liquid inlet for coolant input and a liquid outlet for coolant outflow;

A liquid storage tank, used to store coolant;

A liquid pump, used to pump the coolant to enable it to circulate between the liquid storage tank and the cooling chamber;

Wherein, the liquid storage tank is connected to the liquid outlet through a return pipe, the liquid storage tank is connected to the liquid pump through an outlet pipe, and the liquid pump is connected to the liquid inlet through a pumping pipe.