Energy-saving blade and centrifuge using the same

Abstract

This application relates to the field of centrifuge technology, and more particularly to an energy-saving blade and a centrifuge using the energy-saving blade. The blade comprises a blade body, wherein an end surface of the blade body is provided with a guide groove extending from the middle of the blade body to the sidewall of the blade body, and a liquid outlet is formed on the sidewall of the blade body. The guide groove is used to guide liquid phase. This application can reduce the impact between the liquid phase and the blade body, reduce the resistance encountered by the liquid phase during discharge, and ensure liquid discharge efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of centrifuges, and in particular to an energy-saving blade and a centrifuge using the energy-saving blade. Background Art

[0002] A centrifuge is a machine that uses centrifugal force to separate components in a mixture of liquid and solid particles or liquid.

[0003] Centrifuges include horizontal and vertical centrifuges. For example, the horizontal centrifuge's drum and screw pusher rotate in the same direction at high speed with a certain differential speed. Material continuously enters the screw pusher's feed bin through the feed pipe, accelerates, and enters the drum. Under the action of centrifugal force, the heavier solids are deposited on the drum wall, forming a sediment layer. The screw pusher continuously pushes the deposited solids to the drum's conical section. A first blade is fixed to the end face of the drum's conical section, with a discharge port on the first blade. The solids are discharged from the machine through the discharge port. The lighter liquid forms an inner liquid ring. A second blade is fixed to the end face of the other end of the drum, with an overflow port on the second blade. The liquid continuously overflows the drum from the overflow port and is discharged from the machine through the discharge port.

[0004] Due to the different rotation speeds of the drum and the spiral pusher, the liquid phase collides with the second blade multiple times when the drum is discharged, causing the liquid phase to encounter greater resistance when discharging the drum, resulting in low discharge efficiency. Summary of the Invention

[0005] In order to solve the problem of low liquid phase discharge efficiency, the present application provides an energy-saving blade and a centrifuge using the energy-saving blade.

[0006] On the one hand, the present application provides an energy-saving blade, which adopts the following technical solution: an energy-saving blade, comprising a blade body, a guide groove being provided on the end face of the blade body, the guide groove extending from the middle of the blade body to the side wall of the blade body, and a liquid outlet being formed on the side wall of the blade body, and the guide groove being used to guide the liquid phase.

[0007] By adopting the above technical solution and setting up a guide groove, after the solid phase and the liquid phase are separated, the liquid phase can be discharged from the liquid outlet along the inner wall of the guide groove under the guidance of the guide groove, which can reduce the collision between the liquid phase and the blade body, reduce the resistance encountered by the liquid phase during discharge, and ensure the drainage efficiency.

[0008] In a specific possible implementation scheme, the inner wall of the guide groove includes a first arc surface and a second arc surface, both of which protrude toward the side away from the guide groove, and the first arc surface and the second arc surface are connected at one end away from the liquid outlet.

[0009] By adopting the above technical solution, by setting the inner wall of the guide groove as a first arc surface and a second arc surface that bulges away from the guide groove, when the liquid phase enters the guide groove, it can form a vortex in the guide groove along the first arc surface and the second arc surface, which helps to reduce the impact resistance between the blade body and the liquid phase and improve the discharge efficiency of the liquid phase.

[0010] In a specific possible implementation manner, a plurality of guide lines are provided on the inner wall of the guide groove, and the plurality of guide lines are arranged inwardly along the guide groove at intervals.

[0011] By adopting the above technical solution and providing the guide lines, a better guide effect can be achieved for the liquid phase material, facilitating the discharge of the liquid phase material.

[0012] In a specific possible implementation scheme, a block is provided in the guide groove, the outer wall of the block fits with the inner wall of the guide groove, the contour of the inner wall of the block is the same as the contour of the inner wall of the guide groove, and the block is detachably connected to the blade body.

[0013] By adopting the above technical solution, the size of the guide groove can be adjusted by setting a block. When different suspensions are centrifuged, the position of the dividing line between the solid phase and the liquid phase is different. After adjusting the position of the guide groove by the block, the solid phase in the discharged liquid phase can be reduced, thereby achieving a better separation effect.

[0014] In a specific possible implementation scheme, a mounting plate is provided on the stopper, the mounting plate is connected to the stopper, and the mounting plate is used to cover the end surface of the blade body.

[0015] By adopting the above technical solution, since the mounting plate covers the end face of the blade body, the gap between the block and the blade body can be avoided, which has a better guiding effect on the liquid phase and prevents the liquid phase from seeping into the gap between the block and the blade body.

[0016] In a specific possible implementation scheme, a mounting groove is provided on the end surface of the blade body, an iron core is embedded in the mounting groove, a coil is wound around the iron core, and the stopper is made of ferromagnetic material.

[0017] By adopting the above technical solution, when the coil is energized, the iron core can be magnetized, thereby attracting the block and fixing the block. When the power is off, the magnetism of the iron core disappears, making it easy to remove and replace the block, thereby being able to adapt to different suspensions.

[0018] In a specific possible implementation scheme, a plug-in column is provided on the mounting plate, a plug-in slot for inserting the plug-in column is provided on the blade body, and a plug-in hole is provided in the plug-in column.

[0019] By adopting the above technical solution, by setting up a plug-in slot and inserting the plug-in column into the plug-in slot, the plug-in slot can limit the mounting plate, and try to avoid offset between the mounting plate and the blade body during rotation, which helps to ensure the installation effect of the blade body.

[0020] On the other hand, the present application provides a centrifuge using energy-saving blades, including the above-mentioned energy-saving blades, and also including a drum, a rotating shaft and a spiral blade arranged on the outer wall of the rotating shaft. The rotating shaft is coaxially arranged in the drum, a feed cavity is opened in the rotating shaft, a feed pipe is installed in the feed cavity, a discharge trough connected to the feed pipe is opened on the side wall of the rotating shaft, one end of the drum is provided with an outward-folded flange, the energy-saving blade is installed on the flange, a limiting groove is opened in the flange, a limiting assembly for limiting the blade body is provided in the limiting groove, and the blade body is detachably connected to the drum through the limiting assembly.

[0021] By adopting the above technical solution, the limiting assembly can realize the connection between the blade body and the drum, which is convenient for installing and disassembling the blade body, thereby facilitating the selection of different blocks according to different suspensions, and helping to achieve better drainage effects.

[0022] In a specific feasible implementation scheme, the limit assembly includes a cam and a limit rod, the cam is rotatably connected to the limit groove, the flange is provided with a slide groove connected to the limit groove, the limit rod is slidably installed in the slide groove, and a reset groove is provided in the slide groove, a reset block is installed on the outer wall of the limit rod, and the reset block is slidably installed in the reset groove, and a spring is provided in the reset groove, one end of the spring contacts the reset block, and the other end contacts the inner wall of the reset groove, the cam is provided with a key groove, and the key groove is used for inserting a pin, and the pin can drive the cam to rotate, and a limit ring is fixedly provided on the outer wall of the blade body, and a slot for inserting the limit rod is provided on the side wall of the limit ring facing the limit assembly.

[0023] By adopting the above technical solution, the pin is inserted into the keyway, and the pin is rotated. The pin drives the cam to rotate, and the cam can push the limit rod out of the slide groove, so that the limit rod is inserted into the slot. During the pushing process, the reset block squeezes the spring, and the spring contracts, which can strengthen the connection between the drum and the blade body; after the pin is taken out, the spring resets and pushes the limit rod into the slide groove, which facilitates the disassembly and assembly of the blade body.

[0024] In a specific embodiment, a key is provided on the outer wall of the latch, and a thread is provided on the bottom end of the latch.

[0025] By adopting the above technical solution, by setting a key, after the pin is inserted into the keyway, the pin can drive the cam to rotate, which is convenient for driving the limit rod. By setting a thread, after the pin is inserted into the keyway, the nut is screwed onto the pin, which is convenient for achieving fixation between the blade body and the drum.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. After the solid phase and liquid phase are separated, the liquid phase can be discharged from the liquid outlet along the inner wall of the guide groove, which can reduce the impact between the liquid phase and the blade body, reduce the resistance encountered by the liquid phase during discharge, and ensure the drainage efficiency;

[0028] 2. The block can adjust the size of the guide groove. When centrifuging different suspensions, it can reduce the solid phase in the discharged liquid phase and achieve better separation effect;

[0029] 3. The limit assembly can realize the connection between the blade body and the drum, which is convenient for installation and disassembly of the blade body, thereby facilitating the selection of different blocks according to different suspensions, and helping to achieve better drainage effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the blade body in the embodiment of the present application.

[0031] Figure 2 It is a schematic diagram of the exploded structure of the blade body in the embodiment of the present application.

[0032] Figure 3 This is a schematic diagram of the bottom view of the blade body in the embodiment of the present application.

[0033] Figure 4 It is a schematic diagram of the overall structure of the centrifuge in the embodiment of the present application.

[0034] Figure 5 It is a cross-sectional view of the internal structure of the centrifuge in the embodiment of the present application.

[0035] Figure 6 yes Figure 5 Enlarged view of point A in the middle.

[0036] Figure 7 It is a cross-sectional view of the internal structure of the flange in the embodiment of the present application.

[0037] Figure 8 It is a schematic structural diagram of the limit assembly and the latch in the embodiment of the present application.

[0038] Description of reference numerals:

[0039] 1. Blade body; 11. Guide groove; 12. Liquid outlet; 13. First arc surface; 14. Second arc surface; 15. Guide pattern; 16. Mounting groove; 17. Iron core; 18. Coil; 19. Stop block; 20. Mounting plate; 3. Rotating drum; 31. Rotating shaft; 32. Spiral blade; 33. Feed chamber; 34. Feed pipe; 35. Discharge chute; 36. Limiting ring; 37. Flanging; 38. Limiting groove; 4. Limiting assembly; 41. Cam; 42. Limiting rod; 43. Slide; 44. Reset groove; 45. Reset block; 46. Spring; 47. Keyway; 48. Key; 49. Thread; 50. Connecting column; 51. Connecting groove; 52. Pin; 53. Slot; 54. Positioning hole. DETAILED DESCRIPTION

[0040] The present application is further described in detail below with reference to the accompanying drawings.

[0041] The present application embodiment discloses an energy-saving blade, referring to Figure 1 The energy-saving blade includes a blade body 1, and a guide groove 11 is opened on the end surface of the blade body 1. The guide groove 11 extends from the middle of the blade body 1 to the side wall of the blade body 1, and a liquid outlet 12 is formed on the blade body 1, so that the separated liquid phase can be discharged from the liquid outlet 12.

[0042] Reference Figure 1 and Figure 2 The inner wall of the guide groove 11 includes a first arc surface 13 and a second arc surface 14. The diameter of the first arc surface 13 is larger than the diameter of the second arc surface 14. The first arc surface 13 and the second arc surface 14 are both convex toward the side away from the guide groove 11, and the first arc surface 13 and the second arc surface 14 are connected at one end away from the liquid outlet 12. A plurality of guide lines 15 are provided on the inner bottom wall of the guide groove 11. The plurality of guide lines 15 are arranged inwardly along the edge of the guide groove 11 at intervals. The contour of the guide lines 15 is the same as the contour of the inner wall of the guide groove 11. After the liquid phase is separated from the solid phase, the liquid phase enters the guide groove 11 and, under the guidance of the guide lines 15, forms a vortex in the guide groove 11 along the inner wall of the guide groove 11, and is finally discharged from the liquid outlet 12. By providing the guide groove 11 , the liquid phase can form a vortex in the guide groove 11 during the discharge process of the liquid phase, reducing the resistance generated by the collision between the liquid phase and the blade body 1 , thereby facilitating the discharge of the liquid phase.

[0043] Reference Figure 2 and Figure 3A mounting groove 16 is provided on the top wall of the blade body 1. The mounting groove 16 is in an arc shape. An iron core 17 is embedded in the mounting groove 16. A coil 18 is wound around the iron core 17. Both ends of the coil 18 extend out of the blade body 1 from the middle of the blade body 1. When the coil 18 is energized, the iron core 17 can generate magnetism. A stopper 19 is provided in the guide groove 11. The outer wall of the stopper 19 fits with the inner wall of the guide groove 11, and the contour of the inner wall of the stopper 19 is the same as the contour of the inner wall of the guide groove 11. A mounting plate 20 is fixed on the stopper 19. The mounting plate 20 can fit with the end face of the blade body 1, and the mounting plate 20 covers the end face of the blade body 1. The stopper 19 is made of ferromagnetic material, and in this embodiment, it is specifically an iron block. When the coil 18 is energized, the iron core 17 can attract the stopper 19 and position the stopper 19. The positioning and replacement of the stopper 19 are achieved by powering on and off, which is convenient to operate. A plug-in post 50 is fixed to the bottom wall of the mounting plate 20, and a plug-in slot 51 is formed on the blade body 1 for inserting the plug-in post 50. When installing the mounting plate 20, inserting the plug-in post 50 into the plug-in slot 51 can strengthen the connection between the mounting plate 20 and the blade body 1 and minimize the displacement of the mounting plate 20.

[0044] Reference Figure 2 and Figure 3 After the block 19 is placed in the guide trough 11, the block 19 can make the guide trough 11 smaller. By placing block 19 of different sizes, the size of the guide trough 11 can be adjusted. Therefore, when different suspensions are centrifuged, the position of the dividing line between the solid phase and the liquid phase is different. By adjusting the position of the guide trough 11 with the block 19, the solid phase in the discharged liquid phase can be reduced, achieving a better separation effect.

[0045] The present application also discloses a centrifuge using energy-saving blades, referring to Figure 4 and Figure 5 The centrifuge using energy-saving blades includes a rotating drum 3, a rotating shaft 31, and spiral blades 32 fixed to the outer wall of the rotating shaft 31. The rotating shaft 31 is coaxially disposed within the rotating drum 3 and is rotatably connected to the rotating drum 3. The rotating shaft 31 and the rotating drum 3 are driven by separate motors. A feed chamber 33 is defined within the rotating shaft 31, and a feed pipe 34 is installed within the feed chamber 33. A discharge chute 35 is defined on the rotating shaft 31 and is in communication with the rotating drum 3.

[0046] Reference Figure 4 and Figure 5 The blade body 1 is mounted on the discharge end of the drum 3. A limiting ring 36 is fixedly mounted on the outer wall of the blade body 1. The axial length of the limiting ring 36 is greater than the axial length of the blade body 1. The discharge end of the drum 3 is provided with an outwardly folded flange 37. A limiting groove 38 is defined in the flange 37. A limiting assembly 4 for limiting the position of the blade body 1 is located in the limiting groove 38.

[0047] Reference Figure 5 and Figure 6 The limiting assembly 4 includes a cam 41 and a limiting rod 42. The cam 41 is rotatably connected to the limiting groove 38. A sliding groove 43 connected to the limiting groove 38 is opened in the flange 37. The limiting rod 42 is slidably installed in the sliding groove 43. A reset groove 44 is opened in the sliding groove 43. A reset block 45 is fixed on the outer wall of the limiting rod 42. A spring 46 is installed in the reset groove 44. One end of the spring 46 contacts the inner wall of the reset groove 44, and the other end contacts the reset block 45.

[0048] Reference Figure 5 and Figure 7 A key slot 47 is provided in the middle of the cam 41 , and a positioning hole 54 is provided on the blade body 1 . Both the positioning hole 54 and the key slot 47 are used for inserting the latch 52 .

[0049] Reference Figure 7 and Figure 8 , a key 48 is fixed on the outer wall of the latch 52, and a thread 49 is provided on one end of the latch 52. After the latch 52 is inserted into the key slot 47, the latch 52 is rotated, and the latch 52 drives the cam 41 to rotate. The cam 41 pushes the limiting rod 42 toward the side close to the limiting ring 36. A slot 53 is provided on the inner wall of the limiting ring 36. The limiting rod 42 can be inserted into the slot 53 to limit the limiting ring 36. Figure 6 At this point, the reset block 45 applies pressure to the spring 46, causing it to contract. To remove the blade body 1, the latch 52 is rotated, causing the cam 41 to rotate and the spring 46 to reset, pushing the limit rod 42 into the limit slot 38. One end of the limit rod 42 is removed from the slot 53, making it easier to remove the blade body 1.

[0050] The implementation principle of the embodiment of the present application is as follows: first, the block 19 and the mounting plate 20 are installed on the blade body 1, and the guide is energized to fix the mounting plate 20. Then, the blade body 1 is installed on the rotating drum 3, and the latch 52 is inserted into the key slot 47 through the positioning hole 54. The latch 52 is rotated, and the latch 52 drives the cam 41 to rotate. The cam 41 pushes the limit rod 42 into the slot 53. The reset block 45 compresses the spring 46, and the reset slot 44 limits the limit rod 42 to prevent it from falling out of the slide slot 43. Finally, the latch 52 is fixed with a nut.

[0051] When stopper 19 needs to be replaced, unscrew the nut, remove the latch 52, reset the spring 46, push the limiting rod 42 into the limiting slot 38, and remove the blade body 1 from the rotating drum 3. De-energize the coil 18, remove the mounting plate 20 and stopper 19, and replace them with mounting plates 20 and stopper 19 of different sizes depending on the suspension. Re-energize the coil 18 to secure the mounting plate 20 and stopper 19. Finally, install the blade body 1 on the rotating drum 3.

[0052] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A centrifuge using energy-saving blades, characterized by: It comprises energy-saving blades, a rotating drum (3), a rotating shaft (31), and spiral blades (32) arranged on the outer wall of the rotating shaft (31). The energy-saving blade comprises a blade body (1), a guide groove (11) is provided on the end surface of the blade body (1), the guide groove (11) extends from the middle of the blade body (1) to the side wall of the blade body (1), and a liquid outlet (12) is formed on the side wall of the blade body (1), and the guide groove (11) is used to guide liquid phase; The inner wall of the guide groove (11) comprises a first arc surface (13) and a second arc surface (14), the first arc surface (13) and the second arc surface (14) both protrude toward a side away from the guide groove (11), and the first arc surface (13) and the second arc surface (14) are connected at one end away from the liquid outlet (12); The rotating shaft (31) is coaxially arranged in the rotating drum (3), a feed cavity (33) is provided in the rotating shaft (31), a feed pipe (34) is installed in the feed cavity (33), a discharge trough (35) connected to the feed pipe (34) is provided on the side wall of the rotating shaft (31), one end of the rotating drum (3) is provided with an outwardly folded flange (37), the energy-saving blade is installed on the flange (37), a limiting groove (38) is provided in the flange (37), a limiting component (4) for limiting the blade body (1) is provided in the limiting groove (38), and the blade body (1) is detachably connected to the rotating drum (3) through the limiting component (4).

2. The centrifuge using energy-saving blades according to claim 1, characterized in that: A plurality of guide lines (15) are provided on the inner wall of the guide groove (11), and the plurality of guide lines (15) are spaced apart and arranged inwardly along the guide groove (11).

3. The centrifuge using energy-saving blades according to claim 1, characterized in that: A stopper (19) is provided in the guide groove (11), the outer wall of the stopper (19) is fitted with the inner wall of the guide groove (11), the contour of the inner wall of the stopper (19) is the same as the contour of the inner wall of the guide groove (11), and the stopper (19) is detachably connected to the blade body (1).

4. The centrifuge using energy-saving blades according to claim 3, characterized in that: A mounting plate (20) is provided on the stopper (19), the mounting plate (20) is connected to the stopper (19), and the mounting plate (20) is used to cover the end surface of the blade body (1).

5. The centrifuge using energy-saving blades according to claim 3, characterized in that: An installation groove (16) is provided on the end surface of the blade body (1), an iron core (17) is embedded in the installation groove (16), a coil (18) is wound around the iron core (17), and the stopper (19) is made of ferromagnetic material.

6. The centrifuge using energy-saving blades according to claim 4, characterized in that: The mounting plate (20) is provided with a plug-in column (50), and the blade body (1) is provided with a plug-in slot (51) for inserting the plug-in column (50).

7. The centrifuge using energy-saving blades according to claim 1, characterized in that: The limiting assembly (4) includes a cam (41) and a limiting rod (42), the cam (41) is rotatably connected to the limiting groove (38), a sliding groove (43) communicating with the limiting groove (38) is provided in the flange (37), the limiting rod (42) is slidably installed in the sliding groove (43), a reset groove (44) is provided in the sliding groove (43), a reset block (45) is installed on the outer wall of the limiting rod (42), the reset block (45) is slidably installed in the reset groove (44), and the reset groove (44) is provided. A spring (46) is provided, one end of the spring (46) contacts the reset block (45), and the other end contacts the inner wall of the reset groove (44); a key groove (47) is provided on the cam (41); the key groove (47) is used for inserting a latch (52); the latch (52) can drive the cam (41) to rotate; a limiting ring (36) is fixedly provided on the outer wall of the energy-saving blade; a slot (53) for inserting a limiting rod (42) is provided on the side wall of the limiting ring (36) facing the limiting assembly (4).

8. The centrifuge using energy-saving blades according to claim 7, characterized in that: An insert key (48) is provided on the outer wall of the latch (52), and a thread (49) is provided on the bottom end of the latch (52).

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