An eccentric rotary agitated coal slurry processing tank device

Abstract

The utility model discloses an eccentric type rotary stirring coal slime processing tank body equipment, it includes tank body, eccentric drive mechanism and stirring subassembly. Tank body is rectangular box structure, is equipped with stirring chamber in the inside, eccentric drive mechanism drives stirring subassembly along non central axis eccentric rotation movement through eccentric wheel and transmission rod, stirring subassembly includes main stirring arm and vice stirring arm, and vice stirring arm can be unfolded or gathered with main stirring arm to adapt to different coal slime characteristics. The application changes stirring force distribution through eccentric rotation, avoids stirring dead angle, improves stirring uniformity, sets up guide vane and auxiliary stirring blade simultaneously and optimizes flow path and shear force distribution, reduces energy consumption. The equipment structure is reasonable, and it is convenient to manufacture and maintain, has higher practicality and popularization value.

Description

Technical Field

[0001] This utility model belongs to the technical field of coal slime processing and mixing equipment, specifically an eccentric rotary mixing coal slime processing tank equipment. Background Technology

[0002] Coal slime processing tank equipment is a device used for stirring, mixing, and treating coal slime, and is widely used in the coal processing industry. Traditional coal slime processing tank equipment typically adopts a center-type rotary stirring structure, where a stirring shaft drives stirring blades to mix the coal slime. This structure can meet basic stirring requirements, but it still has certain limitations in practical applications. For example, center-type stirring may lead to uneven distribution of coal slime within the tank, with poor stirring effects in some areas, affecting overall processing efficiency. In addition, the design of the stirring shaft and blades in traditional equipment is relatively fixed, making it difficult to flexibly adjust according to the characteristics of the coal slime, thus limiting the applicability of the equipment.

[0003] Currently available coal slime processing tank equipment often suffers from uneven distribution of mixing force during the mixing process, easily leading to coal slime accumulation or the formation of mixing dead zones. Although some equipment attempts to improve the mixing effect by increasing the number of mixing blades or increasing the rotation speed, this approach may increase energy consumption and accelerate equipment wear. Therefore, how to design a coal slime processing tank equipment that can improve mixing uniformity while reducing energy consumption has become an urgent problem to be solved. Based on this, we propose an eccentric rotary mixing coal slime processing tank equipment. Utility Model Content

[0004] The purpose of this utility model is to provide an eccentric rotary stirring coal slime processing tank device, which solves the problems mentioned in the background art.

[0005] This invention is implemented as follows: an eccentric rotary stirring coal slime processing tank device includes a tank body, an eccentric drive mechanism, and a stirring assembly. The tank body is a rectangular box structure with an open top, and a stirring chamber is provided inside. A discharge port is provided at the bottom of the stirring chamber for discharging the stirred coal slime. The eccentric drive mechanism is located on one side of the tank body, and its output end extends into the stirring chamber and is connected to the stirring assembly. The eccentric drive mechanism drives the stirring assembly to rotate eccentrically along a non-central axis, thereby changing the distribution pattern of the stirring force and avoiding the generation of stirring dead zones. The stirring assembly includes a main stirring arm and a secondary stirring arm. The main stirring arm is fixedly connected to the output end of the eccentric drive mechanism, and the secondary stirring arm is connected to the main stirring arm through a hinge. The secondary stirring arm can expand or retract with the eccentric rotation of the main stirring arm, thereby adapting to coal slime of different viscosities and densities.

[0006] Preferably, the eccentric drive mechanism includes a drive motor, an eccentric wheel, and a transmission rod. The drive motor is fixedly installed on one side of the outer wall of the tank, and its output shaft is fixedly connected to the eccentric wheel. An arc-shaped protrusion is provided on the outer circumferential surface of the eccentric wheel. One end of the transmission rod is hinged to the arc-shaped protrusion, and the other end is fixedly connected to the main stirring arm. When the drive motor starts, the eccentric wheel rotates and pushes the transmission rod to reciprocate through the arc-shaped protrusion, thereby driving the main stirring arm and the auxiliary stirring arm to perform eccentric rotational motion along the non-central axis.

[0007] Preferably, the inner wall of the tank is provided with multiple guide plates, which are evenly distributed along the longitudinal direction of the inner wall of the tank. Each guide plate is curved in an arc shape, and its curvature is consistent with the rotation direction of the stirring assembly. Several through holes are opened on the surface of the guide plate. The through holes are used to reduce the resistance of the coal slime to the guide plate and guide the coal slime to flow along the arc trajectory of the guide plate, thereby further improving the uniformity of stirring.

[0008] Preferably, scrapers are fixedly connected to the outer surfaces of both the main and auxiliary stirring arms. The scrapers are made of wear-resistant rubber, and a gap of 2-5 mm is left between the edge of the scraper and the inner wall of the tank. The scrapers are used to remove coal sludge adhering to the inner wall of the tank and prevent coal sludge accumulation. Both the main and auxiliary stirring arms have cavities inside, and an adjustment device is provided in the cavity. The adjustment device includes a spring and a limiting block. One end of the spring is fixedly connected to the inner wall of the cavity, and the other end is fixedly connected to the limiting block. The limiting block is used to engage with the inner wall of the cavity through threads. When it is necessary to adjust the unfolding angle of the auxiliary stirring arm, the compression of the spring is changed by rotating the limiting block, thereby controlling the unfolding range of the auxiliary stirring arm.

[0009] Preferably, the bottom of the tank is provided with a support frame, which includes a base and support columns. The base is a rectangular frame structure with anchor bolt holes at all four corners for fixing the equipment to the ground. There are four support columns, which are welded to the four corners of the base. The top of the support columns is fixed to the bottom of the tank by bolts. The middle of the support columns is provided with reinforcing ribs, which are fixed to the support columns and the base by welding, thereby enhancing the stability of the entire equipment.

[0010] Preferably, the eccentric drive mechanism is provided with a protective cover. The protective cover is a semi-enclosed structure, with one side fixedly connected to the outer wall of the tank and the other side detachably connected to the tank via a buckle. The surface of the protective cover is provided with heat dissipation holes to dissipate the heat generated by the drive motor during operation and extend the service life of the equipment. The inside of the protective cover is also provided with a sound insulation cotton layer to reduce the noise of the drive motor during operation and improve the working environment.

[0011] Preferably, the top of the tank is provided with two feed inlets, located on both sides of the tank. The feed inlets are circular in shape with a diameter of 300-500 mm. The top of the feed inlets is provided with a sealing cap, which is connected to the tank via a hinge. The edge of the sealing cap is provided with a sealing ring made of silicone to prevent coal slurry from overflowing during the mixing process. The bottom of the feed inlets is provided with a guide hopper, which is funnel-shaped and its bottom is connected to the mixing chamber to evenly guide the coal slurry into the mixing chamber.

[0012] Preferably, the main stirring arm and the auxiliary stirring arm of the stirring assembly are provided with auxiliary stirring blades at their ends. There are multiple auxiliary stirring blades, which are evenly distributed along the length of the main stirring arm and the auxiliary stirring arm. The auxiliary stirring blades are spiral in shape with a spiral angle of 30-45 degrees. The auxiliary stirring blades are used to enhance the shearing force of the stirring assembly on the coal slime and further improve the stirring effect.

[0013] Preferably, the outer wall of the tank is provided with two observation windows, located on both sides of the tank respectively. The observation windows are made of tempered glass, and the edges of the observation windows are fixedly connected to the tank with sealant. The observation windows are used to observe the mixing situation in the mixing chamber in real time, so that the operator can adjust the mixing parameters in time. A scale is provided on one side of the observation window, which is used to measure the height of the coal slime in the mixing chamber, so as to control the feed rate.

[0014] Preferably, the drive motor is provided with a control panel on its exterior. The control panel is fixedly installed on one side of the outer wall of the tank. The surface of the control panel is provided with a display screen and operation buttons. The display screen is used to display the speed and running time of the drive motor, and the operation buttons are used to control the start and stop of the drive motor and speed adjustment. The control panel is provided with a controller inside. The controller is electrically connected to the drive motor and controls the running status of the drive motor by receiving signals from the operation buttons.

[0015] This invention uses an eccentric drive mechanism to drive the mixing assembly to rotate eccentrically along a non-central axis, changing the force distribution pattern of traditional central mixing, effectively avoiding the generation of mixing dead zones and improving mixing uniformity. At the same time, by setting guide plates and auxiliary mixing blades, the flow path and shear force distribution of coal slime are further optimized, reducing energy consumption. In addition, the equipment has a reasonable structural design, clear connection relationships between various components, and is easy to manufacture and maintain, making it highly practical and valuable for promotion. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the present invention.

[0018] The attached diagram is labeled as follows: 1. Tank body; 2. Eccentric drive mechanism; 3. Stirring assembly; 4. Main stirring arm; 5. Secondary stirring arm; 6. Guide plate; 7. Auxiliary stirring blades; 8. Support frame; 9. Drive motor; 10. Eccentric wheel; 11. Transmission rod; 12. Protective cover; 13. Feed inlet; 14. Observation window. Detailed Implementation

[0019] This utility model provides an eccentric rotary stirring coal slime processing tank device, the overall structure of which is as follows: Figure 1 As shown, the system includes a tank 1, an eccentric drive mechanism 2, a stirring assembly 3, and a support frame 8. The tank 1 is a rectangular box structure with an open top, containing a stirring chamber. A discharge port is located at the bottom of the stirring chamber to discharge the stirred coal slime. An eccentric drive mechanism 2 is fixedly installed on one outer wall of the tank 1. The output end of the eccentric drive mechanism 2 extends into the stirring chamber and connects to the stirring assembly 3, driving the stirring assembly 3 to rotate eccentrically along a non-central axis. The bottom of the tank 1 is fixedly connected to the support frame 8 with bolts. The support frame 8 includes a base and support columns welded to the four corners of the base. Reinforcing ribs are provided in the middle of the support columns to enhance the stability of the equipment.

[0020] The eccentric drive mechanism 2 includes a drive motor 9, an eccentric wheel 10, and a transmission rod 11. The drive motor 9 is fixedly installed on one side of the outer wall of the tank 1, and its output shaft is fixedly connected to the eccentric wheel 10. An arc-shaped protrusion is provided on the outer circumference of the eccentric wheel 10. One end of the transmission rod 11 is hinged to the arc-shaped protrusion, and the other end is fixedly connected to the main stirring arm 4 in the stirring assembly 3. When the drive motor 9 starts, the eccentric wheel 10 rotates and pushes the transmission rod 11 to reciprocate through the arc-shaped protrusion, thereby driving the main stirring arm 4 and the auxiliary stirring arm 5 to rotate eccentrically along a non-central axis. The eccentric drive mechanism 2 is externally equipped with a protective cover 12. One side of the protective cover 12 is fixedly connected to the outer wall of the tank 1, and the other side is detachably connected to the tank 1 via a buckle. The protective cover 12 has heat dissipation holes on its surface and a sound-insulating cotton layer inside.

[0021] The stirring assembly 3 includes a main stirring arm 4 and an auxiliary stirring arm 5. The main stirring arm 4 is fixedly connected to the transmission rod 11, and the auxiliary stirring arm 5 is connected to the main stirring arm 4 via a hinge. The auxiliary stirring arm 5 can expand or retract with the eccentric rotation of the main stirring arm 4. Scrapers are fixedly connected to the outer surfaces of both the main stirring arm 4 and the auxiliary stirring arm 5. The scrapers are made of wear-resistant rubber, and a 2-5 mm gap is left between the edge and the inner wall of the tank 1 to remove coal slime adhering to the inner wall of the tank 1. Both the main stirring arm 4 and the auxiliary stirring arm 5 have cavities inside, and each cavity contains an adjustment device. The adjustment device includes a spring and a limiting block. One end of the spring is fixedly connected to the inner wall of the cavity, and the other end is fixedly connected to the limiting block. The limiting block engages with the inner wall of the cavity via threads. Rotating the limiting block changes the spring compression to control the expansion range of the auxiliary stirring arm 5. Both the main stirring arm 4 and the auxiliary stirring arm 5 are equipped with auxiliary stirring blades 7 at their ends. There are multiple auxiliary stirring blades 7, which are evenly distributed along the length of the main stirring arm 4 and the auxiliary stirring arm 5. They are spiral in shape with a spiral angle of 30-45 degrees.

[0022] Multiple guide plates 6 are provided on the inner wall of the tank 1. The guide plates 6 are evenly distributed along the longitudinal direction of the inner wall of the tank 1. Each guide plate 6 is curved in an arc shape, and the curvature direction is consistent with the rotation direction of the stirring component 3. Several through holes are opened on the surface of the guide plate 6 to reduce the resistance of the coal slurry to the guide plate 6 and guide the coal slurry to flow along the arc trajectory of the guide plate 6. Two feed inlets 13 are provided at the top of the tank 1, located on both sides of the tank 1 respectively. The feed inlets 13 are circular in shape with a diameter of 300-500 mm. The top is equipped with a sealing cover, which is connected to the tank 1 by a hinge. The edge of the sealing cover is equipped with a silicone sealing ring to prevent the coal slurry from overflowing during the stirring process. A guide hopper is provided at the bottom of the feed inlet 13. The guide hopper is funnel-shaped and its bottom is connected to the stirring chamber to evenly guide the coal slurry into the stirring chamber.

[0023] Two observation windows 14 are provided on the outer wall of the tank 1, located on both sides of the tank 1. The observation windows 14 are made of tempered glass and are fixedly connected to the tank 1 with sealant at their edges, for real-time observation of the mixing situation inside the mixing chamber. A scale is provided on one side of the observation window 14 for measuring the height of the coal slime in the mixing chamber to control the feed rate. A control panel is provided on the outside of the drive motor 9, which is fixedly installed on one side of the outer wall of the tank 1. The control panel has a display screen and operation buttons. The display screen is used to display the speed and running time of the drive motor 9, and the operation buttons are used to control the start, stop and speed adjustment of the drive motor 9. A controller is located inside the control panel. The controller is electrically connected to the drive motor 9 and controls the operation status of the drive motor 9 by receiving signals from the operation buttons.

[0024] In actual operation, coal slurry is first poured into the mixing chamber of tank 1 through feed inlet 13. After being evenly distributed by the guide bucket, the coal slurry enters the mixing chamber. After starting the drive motor 9, the eccentric wheel 10 rotates and pushes the transmission rod 11 to reciprocate through the arc-shaped protrusion. The transmission rod 11 drives the main mixing arm 4 and the auxiliary mixing arm 5 to rotate eccentrically along the non-central axis. During this process, the auxiliary mixing blades 7 on the main mixing arm 4 and the auxiliary mixing arm 5 apply shearing force to the coal slurry, while the scraper removes the coal slurry adhering to the inner wall of tank 1 to prevent accumulation. The guide plate 6 guides the coal slurry to flow along an arc-shaped trajectory, further improving the uniformity of mixing. The operator can observe the mixing situation in the mixing chamber in real time through the observation window 14 and adjust the speed and running time of the drive motor 9 through the control panel to optimize the mixing effect. After mixing is completed, the coal slurry is discharged through the discharge port, completing the entire processing process.

[0025] To enable those skilled in the art to fully understand and implement this utility model, the following supplementary explanation of the specific implementation principle of this utility model is provided in conjunction with a specific application scenario.

[0026] In the actual scenario of coal slime processing, the coal slime to be processed is first poured into the tank 1 through the feed inlet 13. The guide bucket at the bottom of the feed inlet 13 evenly guides the coal slime into the mixing chamber, ensuring the uniformity of the initial material distribution. At this time, the operator can measure the height of the coal slime in the mixing chamber through the scale on the observation window 14 and adjust the feed rate according to the actual situation to avoid overload or underload.

[0027] Subsequently, the drive motor 9 is started, which drives the eccentric wheel 10 to rotate. The arc-shaped protrusion on the outer circumference of the eccentric wheel 10 pushes the transmission rod 11 to reciprocate, thereby causing the main stirring arm 4 and the auxiliary stirring arm 5 to rotate eccentrically along a non-central axis. Due to the design of the eccentric drive mechanism 2, the rotation trajectory of the stirring assembly 3 is not around the central axis of the tank 1, but exhibits an eccentric motion mode. This eccentric motion changes the force distribution characteristics of traditional central stirring, allowing the stirring force to cover a wider area, thus effectively avoiding the generation of stirring dead zones.

[0028] During the mixing process, the auxiliary stirring blades 7 on the main stirring arm 4 and the secondary stirring arm 5 apply shear force to the coal slime. The spiral design of the auxiliary stirring blades 7 enables them to provide not only radial stirring force during rotation but also axial driving force, further promoting the flow and mixing of the coal slime. Simultaneously, the scrapers fixed to the outer surfaces of the main stirring arm 4 and the secondary stirring arm 5 maintain a 2-5 mm gap with the inner wall of the tank 1. The scrapers can remove coal slime adhering to the inner wall of the tank, preventing a decrease in mixing efficiency due to coal slime accumulation.

[0029] Furthermore, the guide plate 6 installed on the inner wall of the tank 1 serves to guide the flow of coal slime. The guide plate 6 is arc-shaped, with its bending direction consistent with the rotation direction of the stirring assembly 3, and has several through holes on its surface. These through holes not only reduce the resistance of the coal slime to the guide plate 6, but also guide the coal slime to flow along an arc-shaped trajectory, thereby optimizing the movement path of the coal slime in the stirring chamber and improving the uniformity of stirring. Through the synergistic effect of the guide plate 6 and the auxiliary stirring blades 7, the flow of coal slime in the stirring chamber is smoother, avoiding local accumulation or uneven stirring.

[0030] During the mixing process, the operator can observe the mixing situation in the mixing chamber in real time through the observation window 14. The observation window 14 is made of tempered glass, which has good transparency and strength, and can clearly display the dynamic changes in the mixing chamber. If the mixing effect is not ideal, the operator can adjust the speed of the drive motor 9 through the control panel. The display screen on the control panel displays the operating parameters of the drive motor 9 in real time, and the operation buttons are used to precisely control the start, stop and speed adjustment of the drive motor 9. By changing the speed, the movement frequency and force of the mixing component 3 can be adjusted to adapt to the characteristics of coal slime with different viscosities and densities.

[0031] After mixing is complete, the coal slurry is discharged through the discharge port at the bottom of tank 1. The discharge port is designed with optimized placement to ensure rapid and smooth discharge of the coal slurry, preventing residue buildup. After the entire processing is completed, the equipment can enter standby mode or proceed to the next operation.

[0032] As can be seen from the above steps, the eccentric rotary stirring coal slime processing tank equipment of this utility model drives the stirring component 3 to rotate eccentrically along a non-central axis through the eccentric drive mechanism 2, changing the force distribution mode of traditional central stirring and effectively avoiding the generation of stirring dead zones. At the same time, the synergistic effect of the guide plate 6 and the auxiliary stirring blades 7 optimizes the flow path and shear force distribution of the coal slime, significantly improving the uniformity and efficiency of stirring. In addition, the equipment has a reasonable structural design, clear connection relationships between various components, and is easy to manufacture, maintain and operate, thus possessing high practicality and promotional value.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An eccentric rotary stirring coal slime processing tank device, comprising a tank (1), an eccentric drive mechanism (2), and a stirring assembly (3), characterized in that: The tank (1) is a rectangular box structure with an open top and a stirring chamber inside. A discharge port is provided at the bottom of the stirring chamber. The eccentric drive mechanism (2) is located on one side of the tank (1) and its output end extends into the stirring chamber and is connected to the stirring assembly (3). The stirring assembly (3) includes a main stirring arm (4) and a secondary stirring arm (5). The main stirring arm (4) is fixedly connected to the output end of the eccentric drive mechanism (2), and the secondary stirring arm (5) is connected to the main stirring arm (4) through a hinge.

2. The eccentric rotary stirring coal slime processing tank equipment according to claim 1, characterized in that: The eccentric drive mechanism (2) includes a drive motor (9), an eccentric wheel (10) and a transmission rod (11). The drive motor (9) is fixedly installed on one side of the outer wall of the tank (1), and its output shaft is fixedly connected to the eccentric wheel (10). An arc-shaped protrusion is provided on the outer circumference of the eccentric wheel (10). One end of the transmission rod (11) is hinged to the arc-shaped protrusion, and the other end is fixedly connected to the main stirring arm (4).

3. The eccentric rotary stirring coal slime processing tank equipment according to claim 1, characterized in that: The inner wall of the tank (1) is provided with multiple guide plates (6). The guide plates (6) are evenly distributed along the longitudinal direction of the inner wall of the tank (1). Each guide plate (6) is curved in an arc shape, and several through holes are opened on the surface of the guide plate (6).

4. The eccentric rotary stirring coal slime processing tank equipment according to claim 1, characterized in that: The outer surfaces of the main stirring arm (4) and the auxiliary stirring arm (5) are fixedly connected with scrapers. A gap is left between the edge of the scraper and the inner wall of the tank (1). The width of the gap is 2 mm to 5 mm. The main stirring arm (4) and the auxiliary stirring arm (5) are both provided with cavities. An adjustment device is provided in the cavity. The adjustment device includes a spring and a limiting block. One end of the spring is fixedly connected to the inner wall of the cavity, and the other end is fixedly connected to the limiting block. The limiting block is used in conjunction with the inner wall of the cavity through threads.

5. The eccentric rotary stirring coal slime processing tank equipment according to claim 1, characterized in that: The bottom of the trough (1) is provided with a support frame (8). The support frame (8) includes a base and support columns. The base is a rectangular frame structure with anchor bolt holes at all four corners. There are four support columns, which are welded to the four corners of the base. The top of the support column is fixedly connected to the bottom of the trough (1) by bolts. The middle part of the support column is provided with reinforcing ribs.

6. The eccentric rotary stirring coal slime processing tank equipment according to claim 1, characterized in that: The top of the tank (1) is provided with a feed inlet (13). There are two feed inlets (13), which are located on both sides of the tank (1). The feed inlets (13) are circular in shape and have a diameter of 300 mm to 500 mm. The top of the feed inlet (13) is provided with a sealing cover. The sealing cover is connected to the tank (1) by a hinge. The edge of the sealing cover is provided with a silicone sealing ring.

7. The eccentric rotary stirring coal slime processing tank equipment according to claim 1, characterized in that: The main stirring arm (4) and the auxiliary stirring arm (5) are both provided with auxiliary stirring blades (7) at their ends. There are multiple auxiliary stirring blades (7) that are evenly distributed along the length of the main stirring arm (4) and the auxiliary stirring arm (5). The auxiliary stirring blades (7) are spiral in shape with a spiral angle of 30 to 45 degrees.

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