A stirring device for carbon source compounding

Abstract

This utility model relates to the field of carbon source production technology, specifically to a stirring device for carbon source compounding, comprising a shell, a rotating shaft inside the shell, and a stirring rod connected to the rotating shaft; a driving component lower than the stirring rod is provided in the lower part of the shell, the driving component including a rotating cylinder and a rotating plate, the rotating cylinder being sleeved outside the lower end of the rotating shaft and rotatably connected to the peripheral wall of the shell, the rotating plate being fixed on the top surface of the rotating cylinder and sleeved outside the rotating shaft, the top surface of the rotating plate having an array of driving plates, and a transmission component provided inside the rotating cylinder, the transmission component including a first gear and a second gear, the lower end of the rotating shaft being connected to the first gear, the inner wall of the rotating cylinder outside the first gear having an annular array of teeth, the left and right ends of the first gear meshing with the second gear rotatably connected to the bottom plate of the shell, the opposite ends of the two second gears respectively meshing with the teeth in the left and right parts of the rotating cylinder. This utility model solves the problem of difficulty in uniformly mixing multiple carbon sources when compounding and stirring.

Description

Technical Field

[0001] This utility model relates to the field of carbon source production technology, specifically to a stirring device for carbon source compounding. Background Technology

[0002] In wastewater treatment, especially in biological denitrification and biological phosphorus removal, microorganisms require organic carbon sources as energy and electron donors. When the biodegradable organic matter (BOD / COD) in the influent is insufficient to support these processes, an external carbon source is needed. Single carbon sources often have limitations; mixing two or more different carbon-containing organics (carbon sources) in a certain proportion can improve denitrification efficiency, reduce sludge production, and increase fermentation yield.

[0003] However, when multiple carbon sources are mixed, as mentioned in the patent publication CN 222468836 U "A Mixing and Preparation Device for the Production of Composite Carbon Sources", the mixing of multiple carbon sources by stirring in one direction makes it difficult for different carbon sources to come into sufficient contact, resulting in uneven mixing of multiple carbon sources. The reason is that traditional unidirectional stirring tends to form a "solid rotation zone" in the central area, where the fluid rotates as a whole like a solid, with no relative movement inside, resulting in a mixing dead zone. Therefore, a device is needed that can improve the mixing uniformity when multiple carbon sources are mixed. Utility Model Content

[0004] This invention addresses the problem of uneven mixing of multiple carbon sources during compound mixing; it provides a mixing device for compound carbon sources, which can improve mixing efficiency and product quality.

[0005] To solve the above problems, the technical solution of this utility model is:

[0006] A stirring device for carbon source compounding includes a shell, the top of which is connected to a feed pipe, and a rotating shaft driven by a motor is provided inside the shell. A stirring rod is connected to the rotating shaft, and a discharge pipe is connected to the lower part of the shell. A driving component lower than the stirring rod is provided in the lower part of the shell. The driving component includes a rotating cylinder and a rotating plate. The rotating cylinder is sleeved outside the lower end of the rotating shaft and rotatably connected to the peripheral wall of the shell. A rotating plate sleeved outside the rotating shaft is fixed on the top surface of the rotating cylinder. A driving plate is arrayed on the top surface of the rotating plate. A transmission component is provided inside the rotating cylinder. The transmission component includes a gear one and a gear two. The lower end of the rotating shaft is connected to gear one. The inner wall of the rotating cylinder outside gear one has a ring array of teeth. Gear one is meshed with gear two, which is rotatably connected to the bottom plate of the shell, at both ends of gear one. The opposite ends of the two gear two mesh with the teeth in the left and right parts of the rotating cylinder, respectively.

[0007] Furthermore, the outer peripheral wall of the rotating cylinder slides in contact with the inner wall of the housing. An annular groove is provided on the outer peripheral wall of the rotating cylinder. Multiple limiting rods are fixedly mounted on the peripheral wall of the housing. The multiple limiting rods are arranged in a circular array along the peripheral wall of the housing. The inner end of each limiting rod extends into the annular groove. The side of the annular groove slides in contact with the inner ends of the multiple limiting rods.

[0008] Furthermore, the bottom surface of the rotating cylinder is provided with an annular groove II, and a bearing cylinder is fixed on the inner bottom surface of the housing. The upper end of the bearing cylinder extends into the annular groove II, and multiple balls are movably installed on the upper end of the bearing cylinder, which are in contact with the inner top surface of the annular groove II.

[0009] Furthermore, the rotating plate is a circular plate with a thickness that gradually increases from the edge to the center. The middle part of the rotating plate is fitted onto the outside of the rotating shaft through a through hole. The through hole is rotatably connected to the rotating shaft through a sealed bearing. There is a gap between the outer ring of the rotating plate and the housing. The housing is provided with a sealing ring that contacts the outer ring of the rotating plate. Each of the driving plates is an arc-shaped plate. The straight surface on the driving plate opposite to the arc surface is connected to the top surface of the rotating plate.

[0010] Furthermore, one end of the discharge pipe that is connected to the shell is higher than the rotating plate and close to the top surface of the rotating plate, and a valve is provided on the discharge pipe.

[0011] Furthermore, each of the gears is fixedly connected to a rotating rod at its center, and the lower end of each rotating rod is rotatably connected to the bottom plate of the housing.

[0012] The beneficial effects of this utility model through the above technical solution are as follows:

[0013] In this invention, when the rotating shaft drives the stirring rod to stir the fluid (a mixture of multiple carbon sources), the rotating shaft drives the rotating drum to move in the opposite direction to the rotation of the rotating shaft via a transmission component. This causes the rotating drum to drive the rotating plate and the driving plate on its upper side to move in the opposite direction to the rotation of the stirring rod. The fluid and the stirring rod rotate in opposite directions, which increases the contact area between the stirring rod and the fluid, enhances the radial and axial flow of the fluid, eliminates dead zones, and thus improves the mixing uniformity of multiple carbon sources. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a sectional front view of the present invention;

[0016] Figure 3 yes Figure 2 Sectional view at point AA;

[0017] Figure 4 This is a schematic diagram of the connection between the rotating plate and the drive plate of this utility model;

[0018] Figure 5This is a schematic diagram of the structure of the rotating drum of this utility model;

[0019] Figure 6 This is a schematic diagram of the bearing cylinder connecting the ball bearings of this utility model.

[0020] The attached diagram is labeled as follows: 1. Shell, 2. Feed pipe, 3. Motor, 4. Rotating shaft, 5. Stirring rod, 6. Discharge pipe, 7. Rotating drum, 8. Rotating plate, 9. Drive plate, 10. Gear 1, 11. Gear 2, 12. Gear teeth, 13. Annular groove 1, 14. Limiting rod, 15. Annular groove 2, 16. Bearing cylinder, 17. Ball bearing, 18. Sealed bearing, 19. Valve, 20. Rotating rod, 21. Connecting bearing, 22. Sealing ring. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0022] like Figures 1-6 As shown, a stirring device for carbon source compounding includes a shell 1, which is a cylinder with its upper opening sealed by a top plate. The outer bottom surface of the shell is provided with support legs. The top of the shell 1 is connected to a feed pipe 2. Inside the shell 1 is a rotating shaft 4 driven by a motor 3. The rotating shaft 4 is a cylindrical rod. The motor 3 is fixed to the outer top surface of the shell 1. The rotating shaft 4 movably passes through the top plate of the shell 1 and connects to the output end of the motor 3. A stirring rod 5 is connected to the rotating shaft 4. A discharge pipe 6 is connected to the lower part of the shell 1. A driving component, lower than the stirring rod 5, is provided in the lower part of the shell 1. The driving component includes a rotating cylinder 7 and a rotating plate 8. The rotating cylinder 7 is sleeved on the lower end of the rotating shaft 4. The rotating cylinder 7 is a cylindrical body with openings at both ends. A rotating plate 8 is fixed on the top surface of the rotating cylinder 7 and is fitted around the rotating shaft 4. The rotating plate blocks the opening at the top end of the rotating cylinder. A drive plate 9 is arranged on the top surface of the rotating plate 8. A transmission component is provided inside the rotating cylinder 7. The transmission component includes a first gear 10 and a second gear 11. The lower end of the rotating shaft 4 is connected to the first gear 10. The inner wall of the rotating cylinder 7 outside the first gear 10 has a ring of teeth 12. The left and right ends of the first gear 10 are meshed with the second gear 11, which is rotatably connected to the bottom plate of the housing 1. The opposite ends of the two second gears 11 respectively mesh with the teeth 12 inside the left and right parts of the rotating cylinder 7.

[0023] The outer peripheral wall of the rotating cylinder 7 slides in contact with the inner wall of the housing 1. The outer peripheral wall of the rotating cylinder 7 is provided with an annular groove 13, which is a circular groove with its opening facing the peripheral wall of the housing 1. Multiple limiting rods 14 are fixedly mounted on the peripheral wall of the housing 1. The multiple limiting rods 14 are arranged in a circular array along the peripheral wall of the housing 1. The inner end of each limiting rod 14 extends into the annular groove 13. The side of the annular groove 13 slides in contact with the inner ends of the multiple limiting rods 14. The limiting rod 14 is a round rod with a diameter that matches the width of the annular groove 13.

[0024] The bottom surface of the rotating cylinder 7 is provided with an annular groove 15, which is a downward-facing circular groove. The annular groove 15 is coaxial with the rotating cylinder 7. A bearing cylinder 16 is fixed on the inner bottom surface of the housing 1. The bearing cylinder 16 is a cylinder with open ends. The upper end of the bearing cylinder 16 extends into the annular groove 15. Multiple balls 17 are movably installed on the upper end of the bearing cylinder 16, which are in contact with the inner top surface of the annular groove 15. The inner and outer vertical sides of the annular groove 15 slide in contact with the inner and outer sides of the bearing cylinder 16, respectively. The lower end of the rotating cylinder 7 is higher than the inner bottom surface of the housing 1.

[0025] The rotating plate 8 is a circular plate whose thickness gradually increases from the edge to the center. The middle part of the rotating plate 8 is fitted over the rotating shaft 4 through a through hole. The through hole is rotatably connected to the rotating shaft 4 through a sealed bearing 18. There is a gap between the outer ring of the rotating plate 8 and the housing 1. The housing 1 is provided with a sealing ring 22 that contacts the outer ring of the rotating plate 8. The sealing ring 22 is a circular ring made of graphite packing material. Each of the driving plates 9 is an arc-shaped plate. The straight surface on the driving plate 9 opposite to the arc surface is connected to the top surface of the rotating plate 8.

[0026] The discharge pipe 6 is connected to the housing 1 at one end, which is higher than the rotating plate 8 and close to the top surface of the rotating plate 8. A valve 19 is provided on the discharge pipe 6.

[0027] Each of the gears 11 is fixedly connected to a rotating rod 20 at its center, and the lower end of each rotating rod 20 is rotatably connected to the bottom plate of the housing 1 via a connecting bearing 21.

[0028] During use, valve 19 on discharge pipe 6 is closed. Multiple carbon sources requiring mixing are fed into housing 1 via feed pipe 2, located on the upper side of rotating plate 8. Motor 3 drives rotating shaft 4 to rotate clockwise (clockwise rotation of rotating shaft 4 is...). Figure 3From the perspective of the rotating shaft 4, multiple stirring rods 5 rotate with the rotating shaft 4, stirring and mixing various carbon sources inside the shell 1 to form a mixed fluid. When the rotating rod 20 rotates clockwise, gear 10 rotates clockwise with the rotating shaft 4. Gear 10 meshes with gear 21 on the left side and rotates counterclockwise. The left end of gear 21 meshes with the teeth 12 on the left side of the rotating cylinder 7, causing the rotating cylinder 7 to rotate counterclockwise. Moreover, gear 10 meshes with gear 21 on the right side and rotates counterclockwise. The right end of gear 21 on the right side also meshes with the teeth 12 on the right side of the rotating cylinder 7, causing the rotating cylinder 7 to rotate counterclockwise. Therefore, when the rotating shaft 4 rotates, it can drive the rotating cylinder 7 to rotate counterclockwise, and the rotating plate 8 and The drive plate 9 on its upper side rotates counterclockwise with the rotating drum 7. Multiple drive plates 9 on the rotating plate 8 can drive the fluid in the shell 1 to rotate counterclockwise. The direction of rotation of the fluid in the shell 1 is opposite to that of the stirring rod 5. The stirring rod 5 and the fluid are in relative motion contact. In the same amount of time, compared with the method of stirring only in one direction, the stirring rod 5 can contact the fluid more, the shear rate of the fluid is increased, and turbulence is formed in the fluid in the shell 1. The relative motion speed between the fluids increases, enhancing the radial and axial flow capacity of the fluid, eliminating dead zones, and allowing multiple carbon sources to come into rapid contact with each other, thereby improving the mixing uniformity of multiple carbon sources.

[0029] After the various carbon sources in the shell 1 are mixed, the valve 19 is opened, and the material can be discharged through the discharge pipe 6.

[0030] The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Any equivalent or equivalent modifications or substitutions to the technical solutions of the present utility model without departing from the spirit of the present utility model or the scope of disclosure shall fall within the protection scope of the present utility model.

Claims

1. A carbon source compound stirring device, comprising a shell (1), a feed pipe (2) is communicated at the top of the shell (1), a rotating shaft (4) driven by a motor (3) is arranged in the shell (1), a stirring rod (5) is connected to the rotating shaft (4), and a discharge pipe (6) is communicated at the lower part of the shell (1); characterized in that, The lower part of the housing (1) is provided with a driving component lower than the stirring rod (5). The driving component includes a rotating cylinder (7) and a rotating plate (8). The rotating cylinder (7) is sleeved outside the lower end of the rotating shaft (4) and is rotatably connected to the periphery of the housing (1). The top surface of the rotating cylinder (7) is fixed with a rotating plate (8) sleeved outside the rotating shaft (4). The top surface of the rotating plate (8) is arrayed with driving plates (9). The rotating cylinder (7) is provided with a transmission component. The transmission component includes a gear one (10) and a gear two (11). The lower end of the rotating shaft (4) is connected to the gear one (10). The inner wall of the rotating cylinder (7) outside the gear one (10) is arrayed with teeth (12) in a ring. The left and right ends of the gear one (10) are meshed with the gear two (11) which is rotatably connected to the bottom plate of the housing (1). The opposite ends of the two gear two (11) mesh with the teeth (12) in the left and right parts of the rotating cylinder (7) respectively.

2. The stirring device for carbon source compounding according to claim 1, characterized in that, The outer peripheral wall of the rotating cylinder (7) slides in contact with the inner wall of the housing (1). The outer peripheral wall of the rotating cylinder (7) is provided with an annular groove (13). Multiple limiting rods (14) are fixedly installed on the peripheral wall of the housing (1). The multiple limiting rods (14) are arranged in annular array along the peripheral wall of the housing (1). The inner end of each limiting rod (14) extends into the annular groove (13). The side of the annular groove (13) slides in contact with the inner end of the multiple limiting rods (14).

3. The stirring device for carbon source compounding according to claim 1, characterized in that, The bottom surface of the rotating cylinder (7) is provided with an annular groove 2 (15), and the inner bottom surface of the housing (1) is fixed with a bearing cylinder (16). The upper end of the bearing cylinder (16) extends into the annular groove 2 (15), and multiple balls (17) that are in contact with the inner top surface of the annular groove 2 (15) are movably installed on the upper end of the bearing cylinder (16).

4. The stirring device for carbon source compounding according to claim 1, characterized in that, The rotating plate (8) is a circular plate with a thickness that gradually increases from the edge to the center. The middle part of the rotating plate (8) is fitted over the rotating shaft (4) through a through hole. The through hole is rotatably connected to the rotating shaft (4) through a sealed bearing (18). There is a gap between the outer ring of the rotating plate (8) and the housing (1). The housing (1) is provided with a sealing ring (22) that contacts the outer ring of the rotating plate (8). Each of the driving plates (9) is an arc-shaped plate. The straight surface on the driving plate (9) opposite to the arc surface is connected to the top surface of the rotating plate (8).

5. The stirring device for carbon source compounding according to claim 1, characterized in that, The discharge pipe (6) is connected to the shell (1) at one end, which is higher than the rotating plate (8) and close to the top surface of the rotating plate (8). A valve (19) is provided on the discharge pipe (6).

6. The stirring device for carbon source compounding according to claim 1, characterized in that, Each of the gears (11) is fixedly connected to a rotating rod (20) at its center, and the lower end of each rotating rod (20) is rotatably connected to the bottom plate of the housing (1).

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