A compound tank and delivery system

Abstract

The application belongs to the technical field of material mixing equipment, and relates to a compound tank and a conveying system, which comprise a tank body; a driving pipe is movably penetrated through the top of the tank body; a vertical rod is arranged in the inner cavity of the driving pipe; two sealing rings are fixedly sleeved on the outer periphery of the vertical rod close to the top end, and a rubber ring is arranged on the outer periphery of each sealing ring; the outer periphery of the vertical rod is fixedly sleeved with a first spiral blade close to the middle position; and a plurality of short shafts are fixedly arranged on the outer periphery of the driving pipe close to the bottom end. In the application, the differential speed output of the high-speed rotation of the vertical rod and the low-speed rotation of the driving pipe is adopted, the first spiral blade rotates at high speed to press down the central liquid, the third spiral blade rotates at low speed to lift the liquid around, a directional circulation flow field of "central downward flow and peripheral upward flow" is formed, and the differential speed matching avoids the flow field offset of the conventional constant-speed stirring, so that the macroscopic mixing efficiency is maximized.

Description

Technical Field

[0001] This invention belongs to the technical field of material mixing equipment, specifically a compounding tank and conveying system. Background Technology

[0002] As a core mixing and reaction device, compounding tanks are widely used in chemical, pharmaceutical, food and pesticide fields. The mixing efficiency and the rationality of the flow field distribution directly determine the final quality of the product and the production energy consumption. During the operation of compounding tanks, how to construct an efficient, full-cavity macroscopic circulation flow field and avoid liquid stagnation and dead zones has always been a key focus for those skilled in the art.

[0003] In the existing technology, the most common mixing equipment usually adopts a single-shaft drive method, that is, a motor drives the mixing blades (such as propeller, turbine, paddle, etc.) mounted on it to rotate through a mixing shaft. When this conventional mixing device is working, all components on the mixing shaft rotate at the same speed (i.e., constant speed).

[0004] However, in conventional constant velocity mixing, in order to take into account the mixing effect of the central region and the wall region of the container, multiple layers of blades or multiple sets of blades are often required. Since the blades of each layer rotate synchronously, the liquid flow trajectories they generate often lack coordination. For example, the flow field generated by the blades in the central region and the flow field generated by the blades in the outer region are prone to interference, collision or even mutual cancellation at the intersection, and cannot form an effective global circulation. Summary of the Invention

[0005] To overcome the shortcomings of the prior art, the present invention aims to provide a compounding tank and conveying system, which solves the problems mentioned above.

[0006] The technical solution adopted by this invention to solve its technical problem is: A compounding tank includes a tank body; a drive tube is movably inserted through the top of the tank body; a vertical rod is inserted through the inner cavity of the drive tube; two sealing rings are fixedly fitted on the outer periphery of the vertical rod near its top, and rubber rings are installed on the outer periphery of each sealing ring, with the rubber rings fitting against the inner wall of the drive tube; a first helical blade is fixedly fitted on the outer periphery of the vertical rod near its middle position; several short shafts are fixedly installed on the outer periphery of the drive tube near its bottom end; a circular tube is fixedly installed on the opposite end of the short shafts; several vertical rods are fixedly installed on the bottom of the circular tube; a third helical blade is fixedly installed on the outer periphery of the vertical rods; the helical spacing of the third helical blade is greater than twice the helical spacing of the first helical blade; a fixed tube is provided in the inner cavity of the tank body; and a drive structure is provided at the top of the tank body.

[0007] Furthermore, the drive structure includes a vertical plate fixedly installed on the top of the tank near one side. A first drive motor is fixedly installed on one side of the vertical plate. A first synchronous pulley is fixedly installed on the top of the vertical rod and the power output shaft of the first drive motor. A first synchronous belt is sleeved between the first synchronous pulleys. A rotating gear is fixedly sleeved on the outer periphery of the drive tube near the top. A transmission gear meshes with one side of the rotating gear. A transmission rod is inserted through the top of the transmission gear. The bottom end of the transmission rod is rotatably connected to the top of the tank. A second synchronous pulley is fixedly sleeved on the top of the transmission rod and the outer periphery of the vertical rod near the top. A second synchronous belt is sleeved between the second synchronous pulleys. A protective shell is installed on the top of the tank. The tops of the transmission rod and the vertical rod movably penetrate the top of the protective shell.

[0008] Furthermore, the bottom of the fixed tube is provided with several T-shaped rods, and a round block is fixedly installed at the bottom of each T-shaped rod. An annular groove is opened at the bottom of the inner cavity of the tank, and the round blocks are slidably connected to the inner cavity of the annular groove. The top of each T-shaped rod is connected to the fixed tube, and a second helical blade is fixedly sleeved on the outer periphery of the fixed tube.

[0009] Furthermore, the blade surface of the second helical blade is inclined downward relative to the horizontal plane.

[0010] Furthermore, protrusions are fixedly installed at equal intervals on the inner wall of the fixed tube.

[0011] Furthermore, the bottom of the fixed tube is provided with several insertion holes, and the top of the T-shaped rod is movably inserted into the inner cavity of the adjacent insertion hole. The T-shaped rod and the side opposite to the adjacent insertion hole are fixedly installed with a return spring.

[0012] Furthermore, a top cover is installed on the top of the fixed tube, and a number of first mesh holes are opened on the top of the top cover.

[0013] Furthermore, a connecting cover is provided on the top of the top cover, and a number of second mesh holes are opened on the top of the connecting cover. The number of second mesh holes are staggered with the number of first mesh holes, and a number of connecting springs are fixedly installed on the side of the connecting cover opposite to the top cover.

[0014] A conveying system for a compounding tank includes a discharge chute located at the front of the tank body. A second conduit is inserted into the other side of the discharge chute, and a drain valve is fixedly installed at the other end of the second conduit. A bend is inserted into one side of the discharge chute, and a first manual valve is installed at the other end of the bend. A first conduit is installed on the other side of the first manual valve and is inserted into the tank body. A horizontal pipe is inserted into the other side of the discharge chute, and a second manual valve is installed at the other end of the horizontal pipe. A connecting pipe is installed on the other side of the second manual valve. A pump body is installed on the other side of the connecting pipe, and the water inlet of the pump body is fixedly connected to the connecting pipe. A conveying pipe is fixedly installed at the water outlet of the pump body, and the bottom end of the conveying pipe is inserted into the top of the tank body. A tube is inserted into the side, and a third manual valve is installed at the top of the tube. An extension tube is installed at the top of the third manual valve. A baffle is movably inserted through the rear side of the discharge trough. A first electric push rod is fixedly installed near the top of the rear side of the discharge trough, and the rear end of the first electric push rod is fixedly connected to the baffle. A fixed rod is rotatably connected to the other side of the inner cavity of the discharge trough. A fourth spiral blade is fixedly sleeved on the outer periphery of the fixed rod. One end of the fixed rod movably penetrates one side of the inner cavity of the discharge trough. A fixed gear is fixedly sleeved near one end of the outer periphery of the fixed rod, and the fixed gears are meshed with each other. A second drive motor is installed on one side of the discharge trough, and the power output shaft of the second drive motor is fixedly connected to the adjacent fixed rod.

[0015] Furthermore, an L-shaped plate is fixedly installed at the bottom of the discharge trough near the other side, and a second electric push rod is fixedly installed at the bottom of the inner cavity of the L-shaped plate. An opening is provided at the bottom of the discharge trough, and a fixing groove passes through the inner cavity of the opening. A sealing gasket is installed in the inner cavity of the opening, and the sealing gasket is tightly fitted with the fixing groove.

[0016] The beneficial effects of this invention are as follows: 1. This invention utilizes the differential output of high-speed rotation of the upright and low-speed rotation of the drive tube. The high-speed rotating first helical blade presses down on the central liquid, while the low-speed rotating third helical blade lifts up the surrounding liquid, forming a directional circulating flow field of "downward movement in the center and upward movement around the perimeter." This differential speed matching avoids the flow field cancellation of conventional constant-speed stirring and maximizes macroscopic mixing efficiency.

[0017] 2. This invention achieves rotation by using the circumferential tangential thrust generated by the downward pressure of the first helical blade on the liquid impact protrusion. The liquid impact and splashing simultaneously enhance local mixing. The second helical blade, which rotates with the fixed tube, adopts a downward tilting design. While conveying materials upward, it generates a strong radial thrust, forcibly pushing the liquid in the stagnant area between the fixed tube and the vertical rod outward to the third helical blade, forming a seamless "inside to outside" relay, completely breaking the liquid stagnation area and mixing dead zone of traditional mixing equipment.

[0018] 3. In this invention, when the rotation speed is increased to enhance mixing, the tangential thrust of the liquid increases, causing the fixed tube to rotate faster. The downward axial thrust generated by the second helical blades increases accordingly, overcoming the spring force and pushing the fixed tube downward, thus narrowing the annular discharge gap between it and the bottom of the tank. Utilizing the throttling effect, the liquid is ejected from the gap at a higher flow rate, forming a strong scouring of the material accumulated at the bottom of the tank, causing the settled material to be re-entrained into the circulation, thus achieving the anti-settling and self-cleaning effect of automatically adjusting the scouring force according to the rotation speed.

[0019] 4. In this invention, when the material rises to the top of the fixed tube, it needs to pass through the staggered mesh holes on the top cover and the connecting cover. The liquid is obstructed and the flow direction changes drastically. At the same time, the pulsating dynamic pressure of the liquid excites the connecting spring to generate high-frequency vibration, which drives the connecting cover to oscillate slightly and forcefully cuts the material. This effectively avoids the problem of the flow field tending to laminar flow or dead turbulence after the rotation speed stabilizes, and improves the shearing and dispersion effect. Attached Figure Description

[0020] The invention will now be further described with reference to the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the overall three-dimensional structure of the present invention from another perspective; Figure 3 This is a cross-sectional perspective view of the second drive motor, the fixing rod, and the first electric push rod of the present invention. Figure 4 This is a cross-sectional view of the baffle, the fourth spiral blade, and the discharge chute of the present invention; Figure 5 This is a three-dimensional structural diagram of the vertical rod, the third spiral blade, and the first drive motor of the present invention. Figure 6 This is a cross-sectional view of the upright plate, protective shell, and circular tube of the present invention; Figure 7 This is a three-dimensional structural diagram of the transmission gear, the third helical blade, and the short shaft of the present invention; Figure 8 This is a cross-sectional perspective view of the circular block, T-shaped rod, and first helical blade of the present invention. Figure 9 This is a three-dimensional structural diagram of the upright, connecting spring and protrusion of the present invention in an exploded view; Figure 10 This is the invention Figure 3 Enlarged view of point A in the middle; Figure 11 This is the invention Figure 8 Enlarged view of section B in the middle.

[0022] In the diagram: 1. Tank body; 2. Drive pipe; 3. Sealing ring; 4. Upright rod; 5. First helical blade; 6. Fixed pipe; 7. Second helical blade; 8. Short shaft; 9. Round tube; 10. Vertical rod; 11. Third helical blade; 12. Upright plate; 13. First drive motor; 14. First synchronous pulley; 15. First synchronous belt; 16. Second synchronous pulley; 17. Second synchronous belt; 18. Protective shell; 19. Transmission rod; 20. Transmission gear; 21. Rotary gear; 22. Connecting spring; 23. Connecting cover; 24. Protrusion; 5. Return spring; 26. T-shaped rod; 27. Round block; 28. First electric push rod; 29. ​​Baffle; 30. Fixing rod; 31. Fourth spiral blade; 32. Fixed gear; 33. Second drive motor; 34. First manual valve; 35. Bend; 36. Horizontal pipe; 37. Second manual valve; 38. Connecting pipe; 39. Pump body; 40. Insert pipe; 41. Third manual valve; 42. Extension pipe; 43. Conveying pipe; 44. L-shaped plate; 45. Second electric push rod; 46. Fixing groove; 47. Discharge chute; 48. Top cover. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0024] Example 1

[0025] like Figures 1-11 As shown, a compounding tank includes a tank body 1; a drive pipe 2 is movably inserted through the top of the tank body 1 (a sealed bearing is embedded in the top of the tank body 1, and the drive pipe 2 is rotatably connected to the tank body 1 through the sealed bearing, and a shaft seal is provided at the junction); a vertical rod 4 is inserted through the inner cavity of the drive pipe 2; two sealing rings 3 are fixedly sleeved on the outer periphery of the vertical rod 4 near the top, and rubber rings are installed on the outer periphery of each sealing ring 3, and the rubber rings are in contact with the inner wall of the drive pipe 2 (to prevent liquid from leaking from the drive pipe 2); a first spiral blade 5 is fixedly sleeved on the outer periphery of the vertical rod 4 near the middle position; several short shafts 8 are fixedly installed on the outer periphery of the drive pipe 2 near the bottom end; a round pipe 9 is fixedly installed on the opposite end of the short shafts 8; several vertical rods 10 are fixedly installed on the bottom of the round pipe 9; a third spiral blade 11 is fixedly installed on the outer periphery of the vertical rods 10; the spiral spacing of the third spiral blade 11 is more than twice the spiral spacing of the first spiral blade 5; a fixed pipe 6 is provided in the inner cavity of the tank body 1; and a drive structure is provided at the top of the tank body 1.

[0026] When raw materials are added into tank 1, the drive pipe 2 and the upright 4 rotate simultaneously under the drive structure. During this process, the first spiral blade 5 and the fixed pipe 6, which are fixedly sleeved on the outer periphery of the upright 4, together with the third spiral blades 11 installed on several vertical rods 10, form a directional liquid conveying: guiding the liquid in the central area to flow downwards, while lifting the liquid in the surrounding area upwards, thus achieving flow mixing and stirring. In addition, under the control of the drive structure, the rotation speed of the first spiral blade 5 is greater than that of the third spiral blade 11, causing the liquid in the fixed pipe 6 to be pressed down rapidly, while the liquid in the outer third spiral blade 11 is slowly conveyed upwards. However, the flow area of ​​the first spiral blade 5 is smaller than that of the outer third spiral blade 11, thus making the amount of liquid driven by the first spiral blade 5 and the amount of liquid driven by the third spiral blade 11 relatively balanced, thereby maximizing the stirring effect.

[0027] The drive structure includes a vertical plate 12 fixedly installed on the top of the tank 1 near the other side. A first drive motor 13 is fixedly installed on one side of the vertical plate 12. A first synchronous pulley 14 is fixedly installed on the top of the upright 4 and the power output shaft of the first drive motor 13. A first synchronous belt 15 is sleeved between the first synchronous pulleys 14. A rotating gear 21 is fixedly sleeved on the outer periphery of the drive tube 2 near the top. A transmission gear 20 meshes on one side of the rotating gear 21. A transmission rod 19 is passed through the top of the transmission gear 20. The bottom end of the transmission rod 19 is rotatably connected to the top of the tank 1. A second synchronous pulley 16 is fixedly sleeved on the top of the transmission rod 19 and the outer periphery of the upright 4 near the top. A second synchronous belt 17 is sleeved between the second synchronous pulleys 16. A protective shell 18 is installed on the top of the tank 1. The top of the transmission rod 19 and the top of the upright 4 both movably pass through the top of the protective shell 18.

[0028] After the first drive motor 13 starts, the rotational motion of its power output shaft is transmitted to the upright 4 via the first synchronous pulley 14 and the first synchronous belt 15, driving the upright 4 to rotate. The upright 4, as the power center, further transmits power to the transmission rod 19 via the second synchronous pulley 16 and the second synchronous belt 17. The transmission rod 19 drives the transmission gear 20 at its end to rotate. The transmission gear 20 meshes with the rotating gear 21, thereby driving the drive tube 2 to rotate. In this transmission process, by configuring the gear ratio between the transmission gear 20 and the rotating gear 21, the speed of the drive tube 2 is lower than the speed of the upright 4, thereby achieving the preset reduction ratio output.

[0029] Example 2

[0030] like Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 11As shown, the bottom of the fixed tube 6 is provided with several T-shaped rods 26, and the bottom end of each T-shaped rod 26 is fixedly installed with a round block 27. The bottom of the inner cavity of the tank body 1 is provided with an annular groove, and the round blocks 27 are all slidably connected to the inner cavity of the annular groove. The top ends of the T-shaped rods 26 are all connected to the fixed tube 6, and the outer periphery of the fixed tube 6 is fixedly fitted with a second spiral blade 7.

[0031] When the upright 4 rotates, it drives the first spiral blade 5, which is fixedly sleeved on its outer circumference, to rotate synchronously. While the first spiral blade 5 conveys the liquid downward, the liquid generates a tangential thrust in the circumferential direction on the fixed tube 6, thereby driving the fixed tube 6 to rotate circumferentially. During the rotation of the fixed tube 6, the T-shaped rod 26 drives the circular block 27 to slide in the annular groove, forming a stable rotation guide and limiting support. As the fixed tube 6 rotates, the second spiral blade 7, which is fixedly sleeved on its outer circumference, rotates accordingly, conveying the liquid around the fixed tube 6 upward, breaking the liquid stagnation zone between the fixed tube 6 and the third spiral blade 11, and effectively avoiding the generation of stirring dead zones.

[0032] The blade surface of the second helical blade 7 is inclined downward relative to the horizontal plane.

[0033] The blade surface of the second helical blade 7 is specially designed to be inclined downward relative to the horizontal plane. This inclined structure enables it to not only have an upward axial conveying capacity when rotating and stirring, but also to generate radial thrust. Therefore, in the process of driving the material to climb upward, the second helical blade 7 can break the laminar flow boundary of the liquid and force the material to be radially pushed towards the third helical blade 11. When the third helical blade 11 rotates, it can continue to convey these materials upward by its own helical propulsion, thus forming an efficient and seamless relay between the two, further reducing the generation of stirring dead zones.

[0034] The inner wall of the fixed tube 6 is fixedly fitted with protrusions 24 at equal intervals.

[0035] By setting a protrusion 24 in the fixed tube 6, when the first spiral blade 5 rotates and conveys the material downward, the liquid impacts the protrusion 24 to generate a circumferential thrust, which increases the circumferential rotational force driving the fixed tube 6. In addition, when the liquid impacts the protrusion 24, the liquid will be impacted and dispersed in all directions, enhancing the mixing effect.

[0036] The bottom of the fixed tube 6 has several insertion holes. The top of the T-shaped rod 26 is movably inserted into the inner cavity of the adjacent insertion hole. The T-shaped rod 26 and the opposite side of the adjacent insertion hole are fixedly installed with a return spring 25.

[0037] During normal rotation, with the cooperation of the return spring 25 and the sealing ring 3, the fixed tube 6 is in the initial position where it is pressed tightly. When it is necessary to adjust the distance between the fixed tube 6 and the bottom of the inner cavity of the tank 1, the speed of the first drive motor 13 is increased. The increase in the speed of the upright rod 4 causes the first spiral blade 5 to convey liquid downward faster. On the one hand, the liquid directly pushes the fixed tube 6 downward along the axial direction through the protrusion 24, and on the other hand, the circumferential tangential thrust generated by the liquid increases accordingly. The circumferential thrust of the liquid impacting the protrusion 24 also increases accordingly, thereby driving the fixed tube 6 to rotate faster. The increase in the speed of the fixed tube 6 drives the second spiral blade 7 to rotate faster. The reaction force generated by the liquid increases the downward axial thrust of the second spiral blade 7, thereby overcoming the elastic force of the return spring 25 and pushing the fixed tube 6 to move downward along the T-shaped rod 26, reducing the distance between it and the bottom of the tank 1. At this time, the annular drainage gap formed by the fixed tube 6 and the bottom of the tank 1 is reduced. Under the throttling effect, the liquid is ejected from the gap at a higher flow rate, strongly flushing the material accumulated at the bottom of the tank and causing it to be re-entered into the circulation and stirring.

[0038] A top cover 48 is installed on the top of the fixed tube 6. The top of the top cover 48 has several first mesh holes (the top cover 48 can be woven and the mesh number is between 200 and 300).

[0039] Under the rotation of the second helical blade 7 and the third helical blade 11, the material is conveyed to the top of the fixed pipe 6. The material is cut through the mesh, which shears and mixes the material, avoiding the formation of turbulence after the rotation speed stabilizes, and improving the mixing effect of the material.

[0040] The top of the top cover 48 is provided with a connecting cover 23. The top of the connecting cover 23 has several second mesh holes. The several second mesh holes are staggered with several first mesh holes. Several connecting springs 22 are fixedly installed on the side of the connecting cover 23 opposite to the top cover 48.

[0041] When the material flows through the top of the connecting cover 23, the liquid is blocked by the second mesh after passing through the first mesh, and its flow direction is forced to change. During this flow process, the pulsating dynamic pressure of the liquid excites the connecting spring 22 to generate high-frequency vibration. The vibration of the connecting spring 22 drives the second mesh to generate micro-oscillation, thereby transforming static shearing into dynamic shearing, which significantly improves the shearing and dispersing effect of the second mesh on the liquid. Moreover, when the distance between the top cover 48 and the connecting cover 23 changes, the liquid between the two is squeezed and diffuses along the surface, further increasing the mixing effect.

[0042] Example 3

[0043] like Figure 1 , Figure 2 , Figure 3 and Figure 10As shown, a conveying system for a compounding tank includes a discharge chute 47 located at the front of the tank body 1. A second conduit is inserted into the other side of the discharge chute 47, and a drain valve is fixedly installed at the other end of the second conduit. A bend 35 is inserted into one side of the discharge chute 47, and a first manual valve 34 is installed at the other end of the bend 35. A first conduit is installed on the other side of the first manual valve 34 and is inserted into the tank body 1. A horizontal pipe 36 is inserted into the other side of the discharge chute 47, and a second manual valve 37 is installed at the other end of the horizontal pipe 36. A connecting pipe 38 is installed on the other side of the second manual valve 37. A pump body 39 is provided on the other side of the connecting pipe 38, and the water inlet of the pump body 39 is fixedly connected to the connecting pipe 38. A conveying pipe 43 is fixedly installed at the water outlet of the pump body 39, and the bottom end of the conveying pipe 43 is inserted into the top of the tank body 1. An insert pipe 40 is inserted into the other side of the conveying pipe 43. A third manual valve 41 is installed at the top of the insertion tube 40, and an extension tube 42 (which can be used as a feeding port for other materials) is installed at the top of the third manual valve 41. A baffle 29 is movably inserted through the rear side of the discharge trough 47. A first electric push rod 28 is fixedly installed near the top of the rear side of the discharge trough 47, and the rear end of the first electric push rod 28 is fixedly connected to the baffle 29. A fixed rod 30 is rotatably connected to the other side of the inner cavity of the discharge trough 47. A fourth spiral blade 31 is fixedly sleeved on the outer periphery of the fixed rod 30. One end of the fixed rod 30 movably penetrates one side of the inner cavity of the discharge trough 47. A fixed gear 32 is fixedly sleeved near one end of the outer periphery of the fixed rod 30, and the fixed gears 32 are meshed with each other. A second drive motor 33 is installed on one side of the discharge trough 47, and the power output shaft of the second drive motor 33 is fixedly connected to the adjacent fixed rod 30.

[0044] During material discharge or external circulation operations, the first electric push rod 28 drives the baffle 29 to move backward, opening the discharge port at the bottom of the tank 1, allowing the material to fall into the discharge trough 47. After the material discharge is complete, the first electric push rod 28 drives the baffle 29 to move forward and reset, closing the discharge port and forming a sealed space to prevent powder or gas from overflowing in subsequent processes. Then, the second drive motor 33 is started, and its power output shaft drives the adjacent fixed rod 30 and the fourth spiral blade 31 to rotate; the rotation is achieved by means of the gears 32 fixed on the outer periphery of the two fixed rods 30. The two fixed rods 30 mesh with each other and rotate synchronously in opposite directions, forcibly pushing the material in the discharge trough 47 to effectively prevent material bridging and blockage. At this time, the first manual valve 34 and the second manual valve 37 are opened to connect the discharge trough 47 and the suction channel of the pump body 39. The pump body 39 is started, and the liquid in the discharge trough 47 is discharged under the suction force of the pump body 39. It enters the pump body 39 in sequence through the horizontal pipe 36 and the connecting pipe 38, and is finally transported back to the tank 1 through the conveying pipe 43 to realize the external circulation of the material, thereby improving the mixing efficiency of the material.

[0045] An L-shaped plate 44 is fixedly installed at the bottom of the discharge trough 47 near the other side. A second electric push rod 45 is fixedly installed at the bottom of the inner cavity of the L-shaped plate 44. An opening is provided at the bottom of the discharge trough 47, and a fixing groove 46 passes through the inner cavity of the opening. A sealing gasket is installed in the inner cavity of the opening, and the sealing gasket is tightly fitted to the fixing groove 46.

[0046] When the liquid flows through the discharge trough 47, the fixed trough 46 moves upward under the drive of the second electric push rod 45. The upward movement of the fixed trough 46 forms a shielding and guiding effect, forcing the liquid flow to change its original trajectory and fully enter the working area of ​​the fourth spiral blade 31. Under the synchronous counter-rotation of the two fourth spiral blades 31, the flowing liquid and powder are forcibly sheared and mixed.

[0047] During operation, the first drive motor 13 serves as a single power source. After startup, power is directly transmitted to the upright 4 via the first synchronous pulley 14 and the first synchronous belt 15, causing it to rotate at high speed. Simultaneously, the upright 4 acts as the power hub, transmitting power to the transmission rod 19 via the second synchronous pulley 16 and the second synchronous belt 17. The transmission gear 20 meshes with the rotating gear 21, driving the drive tube 2 to rotate at low speed, thus achieving differential output between the upright 4 and the drive tube 2. Under differential drive, the upright 4 drives the first spiral blade 5 to rotate at high speed, rapidly pressing the liquid in the central area of ​​the fixed tube 6 downwards, while the drive tube 2... The short shaft 8, the circular tube 9, and the vertical rod 10 drive the third spiral blade 11 to rotate at a low speed, slowly lifting the surrounding liquid upwards. This "fast inside, slow outside" differential speed matching creates a strong directional circulating flow field within the tank 1, with the flow moving downwards from the center and upwards from the periphery, maximizing the mixing effect. During this process, the high-speed downward-pressed liquid exerts a circumferential tangential thrust on the protrusions 24 on the inner wall of the fixed tube 6, forcing the fixed tube 6 to rotate. The splashing caused by the liquid impacting the protrusions 24 also enhances the mixing effect. The rotation of the fixed tube 6, in turn, drives the second spiral blade 7, which is inclined downwards on its outer wall, to rotate, thus conveying the material upwards. Simultaneously, a strong radial thrust is generated, pushing the liquid in the stagnant area between the fixed tube 6 and the vertical rod 10 outward to the third spiral blade 11 for continued upward transport, forming a seamless relay to eliminate the dead zone of stirring. Meanwhile, the T-shaped rod 26 and the circular block 27 at the bottom of the fixed tube 6 slide in the annular groove at the bottom of the inner cavity of the tank 1, providing stable rotational support. In addition, when the speed of the first drive motor 13 is increased, the tangential thrust of the liquid increases, causing the fixed tube 6 to rotate faster. The downward axial thrust generated by the second spiral blade 7 on the liquid increases accordingly, overcoming the elastic force of the return spring 25 and pushing the fixed tube 6 downward. The annular drainage gap between the liquid and the bottom of the tank 1 is reduced, and the liquid is ejected at a higher flow rate under the throttling effect, which strongly flushes the material at the bottom of the tank to prevent sedimentation. When the material is conveyed upward to the top of the fixed pipe 6, it needs to pass through the double mesh of the top cover 48 and the connecting cover 23. Due to the misalignment of the first mesh of the top cover 48 and the second mesh of the connecting cover 23, the liquid is obstructed and the flow direction changes drastically. The pulsating dynamic pressure excites the connecting spring 22 to generate high-frequency vibration, which drives the second mesh of the connecting cover 23 to oscillate slightly, transforming static filtration into dynamic shearing, which strongly cuts and disperses the material to avoid the formation of laminar flow or dead turbulence.During material discharge and external circulation operations, the first electric push rod 28 pulls the baffle 29 to open the outlet of tank 1, allowing the material to fall into the discharge trough 47. It then quickly resets and closes to prevent powder and gas from overflowing. Subsequently, the second drive motor 33 drives the two fixed rods 30 and the fourth spiral blade 31 to rotate synchronously in opposite directions via meshing fixed gears 32, forcibly pushing the material in the discharge trough 47 to prevent bridging. Simultaneously, the second electric push rod 45 pushes the fixed trough 46 upwards to block the flow channel, forcing the liquid flow to fully enter the area of ​​the fourth spiral blade 31 for forced shearing and mixing. Finally, the first manual valve 34 and the second manual valve 37 are opened to start the pump body 39, drawing the material in the discharge trough 47 sequentially through the horizontal pipe 36 and connecting pipe 38 into the pump body 39, and then back into tank 1 via the conveying pipe 43 to complete the external circulation. During discharge, the material is directly discharged through the second conduit and drain valve.

[0048] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A compound tank comprising a tank body (1); characterized in that: The top of the tank (1) is movably connected to a drive tube (2), and the inner cavity of the drive tube (2) is connected to a vertical rod (4). Two sealing rings (3) are fixedly fitted on the outer periphery of the vertical rod (4) near the top end, and rubber rings are installed on the outer periphery of the sealing rings (3), and the rubber rings are in contact with the inner wall of the drive tube (2). The outer periphery of the vertical rod (4) is fixedly fitted with a first spiral blade (5) near the middle position. Several short shafts (8) are fixedly installed on the outer periphery of the drive tube (2) near the bottom end. A round tube (9) is fixedly installed on the opposite end of the short shafts (8). Several vertical rods (10) are fixedly installed at the bottom of the round tube (9). A third spiral blade (11) is fixedly installed on the outer periphery of the vertical rods (10). The spiral spacing of the third spiral blade (11) is more than twice the spiral spacing of the first spiral blade (5). The inner cavity of the tank (1) is provided with a fixed tube (6), and the top of the tank (1) is provided with a drive structure. The drive structure includes a vertical plate (12) fixedly installed on the top of the tank (1) near the other side. A first drive motor (13) is fixedly installed on one side of the vertical plate (12). A first synchronous pulley (14) is fixedly installed on the top of the upright (4) and the power output shaft of the first drive motor (13). A first synchronous belt (15) is sleeved between the first synchronous pulleys (14). A rotating gear (21) is fixedly sleeved on the outer periphery of the drive tube (2) near the top. A transmission gear meshes on one side of the rotating gear (21). (20), a transmission rod (19) is provided through the top of the transmission gear (20), the bottom end of the transmission rod (19) is rotatably connected to the top of the tank (1), and a second synchronous wheel (16) is fixedly sleeved on the top of the transmission rod (19) and the outer periphery of the upright (4) near the top. A second synchronous belt (17) is sleeved between the second synchronous wheels (16). A protective shell (18) is installed on the top of the tank (1), and the tops of the transmission rod (19) and the upright (4) are movable through the top of the protective shell (18). The bottom of the fixed tube (6) is provided with several T-shaped rods (26), and the bottom end of each T-shaped rod (26) is fixedly installed with a round block (27). The bottom of the inner cavity of the tank (1) is provided with an annular groove, and the round blocks (27) are all slidably connected to the inner cavity of the annular groove. The top end of each T-shaped rod (26) is connected to the fixed tube (6). The outer periphery of the fixed tube (6) is fixedly fitted with a second spiral blade (7). The inner wall of the fixed tube (6) is fixedly fitted with protrusions (24) at equal intervals.

2. A duplex tank according to claim 1, characterized in that: The blade surface of the second helical blade (7) is inclined downward relative to the horizontal plane.

3. The compound tank according to claim 1, characterized in that: The bottom of the fixed tube (6) is provided with several insertion holes. The top of the T-shaped rod (26) is movably inserted into the inner cavity of the adjacent insertion hole. The T-shaped rod (26) and the opposite side of the adjacent insertion hole are fixedly installed with a return spring (25).

4. The compound tank according to claim 1, characterized in that: The top of the fixed tube (6) is fitted with a top cover (48), and the top of the top cover (48) has several first mesh holes.

5. A duplex tank according to claim 4, characterized in that: The top of the top cover (48) is provided with a connecting cover (23). The top of the connecting cover (23) has several second mesh holes. The several second mesh holes are staggered with several first mesh holes. Several connecting springs (22) are fixedly installed on the side of the connecting cover (23) opposite to the top cover (48).

6. A conveying system for a compounding tank, applicable to the compounding tank according to any one of claims 1-5, characterized in that, The system includes a discharge trough (47) located on the front side of the tank body (1). A second conduit is inserted into the other side of the discharge trough (47), and a drain valve is fixedly installed at the other end of the second conduit. A bent pipe (35) is inserted into one side of the discharge trough (47), and a first manual valve (34) is installed at the other end of the bent pipe (35). A first conduit is installed on the other side of the first manual valve (34), and the first conduit is inserted into the tank body (1). A horizontal pipe (3) is inserted into the other side of the discharge trough (47). 6) A second manual valve (37) is installed at the other end of the horizontal pipe (36). A connecting pipe (38) is installed on the other side of the second manual valve (37). A pump body (39) is installed on the other side of the connecting pipe (38). The inlet end of the pump body (39) is fixedly connected to the connecting pipe (38). A delivery pipe (43) is fixedly installed at the outlet end of the pump body (39). The bottom end of the delivery pipe (43) is inserted into the top of the tank (1). A insertion pipe is inserted into the other side of the delivery pipe (43). (40), a third manual valve (41) is installed at the top of the insertion tube (40), an extension tube (42) is installed at the top of the third manual valve (41), a baffle (29) is movably passed through the rear side of the discharge trough (47), a first electric push rod (28) is fixedly installed near the top of the rear side of the discharge trough (47), and the rear end of the first electric push rod (28) is fixedly connected to the baffle (29), a fixed rod (30) is rotatably connected to the other side of the inner cavity of the discharge trough (47), a fourth spiral blade (31) is fixedly sleeved on the outer periphery of the fixed rod (30), one end of the fixed rod (30) movably passes through one side of the inner cavity of the discharge trough (47), a fixed gear (32) is fixedly sleeved on the outer periphery of the fixed rod (30) near one end, and the fixed gears (32) are meshed with each other, a second drive motor (33) is installed on one side of the discharge trough (47), and the power output shaft end of the second drive motor (33) is fixedly connected to the adjacent fixed rod (30).

7. The conveying system for a compounding tank according to claim 6, characterized in that: An L-shaped plate (44) is fixedly installed at the bottom of the feeding trough (47) near the other side. A second electric push rod (45) is fixedly installed at the bottom of the inner cavity of the L-shaped plate (44). An opening is provided at the bottom of the feeding trough (47), and a fixing groove (46) passes through the inner cavity of the opening. A sealing gasket is installed in the inner cavity of the opening, and the sealing gasket is tightly fitted with the fixing groove (46).

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