Material suction type scraper for centrifugal machine

Abstract

The utility model discloses a material suction type scraper for a centrifugal machine, and relates to the technical field of centrifugation. The material suction type scraper for the centrifugal machine comprises a scraper body, a blade arranged at one end of the scraper body, a discharging cavity formed in the scraper body, a material suction opening formed in the scraper body and communicated with the discharging cavity and a discharging opening formed in the scraper body and communicated with the discharging cavity, the blade surrounds the peripheral side of the material suction opening, and the discharging opening is used for being communicated with an air draft mechanism. According to the material suction type scraper, when the cutting edge makes contact with the inner wall of the rotary drum and scrapes materials, the scraped materials can directly enter the discharging cavity through the material suction opening and are discharged through the discharging opening, and the discharging efficiency is greatly improved; meanwhile, manual material taking is not needed, and the materials in the centrifugal machine are prevented from being polluted; and moreover, discharging through a discharging opening in the bottom of the centrifugal machine is not needed, material residues are effectively avoided, and the cleaning difficulty of the centrifugal machine is reduced.

Description

Technical Field

[0001] The present application relates to the field of centrifuges, and in particular to a suction scraper for a centrifuge. Background Art

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

[0003] In the existing centrifuge, after the material on the inner wall of the drum is scraped off by a scraper, the scraped material needs to be taken out manually, or the material needs to be discharged through the discharge port at the bottom of the centrifuge. However, the above two discharge methods have their own defects. When taking out the material manually, the upper cover of the centrifuge needs to be opened when taking the material, which not only has a low discharge efficiency, but also easily causes the material in the centrifuge to be contaminated; while discharging the material through the discharge port at the bottom of the centrifuge, on the one hand, more material will cause the discharge port to be blocked when passing through the discharge port, and on the other hand, when discharging the material, some material will remain in the dead corner at the bottom of the centrifuge, which increases the difficulty of cleaning the centrifuge. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the present application provides a suction scraper for a centrifuge.

[0005] The present application provides a centrifuge suction scraper adopting the following technical solution:

[0006] A suction scraper for a centrifuge comprises a blade body, a blade arranged at one end of the blade body, a discharge cavity opened in the blade body, and a suction port opened on the blade body and connected to the discharge cavity, wherein the blade surrounds the circumference of the suction port, and the suction scraper further comprises a discharge port opened on the blade body and connected to the discharge cavity, wherein the discharge port is used to be connected to an exhaust mechanism.

[0007] By adopting the above technical solution, when the blade contacts the inner wall of the drum and scrapes off the material, the scraped material will directly enter the discharge chamber through the suction port and be discharged through the discharge port, which greatly improves the discharge efficiency; at the same time, there is no need to use manual material collection, which avoids the contamination of the material in the centrifuge; and there is no need to discharge the material through the discharge port at the bottom of the centrifuge, which effectively avoids material residue and reduces the difficulty of cleaning the centrifuge.

[0008] In a specific possible implementation manner, one end of the discharge cavity away from the suction port has a transition surface, and the transition surface is arc-shaped.

[0009] By adopting the above technical solution, the arc-shaped transition surface facilitates the flow of materials and can prevent materials from remaining at the end of the discharge cavity away from the suction port.

[0010] In a specific possible implementation scheme, the discharge cavity forms a first cavity wall and a second cavity wall on both sides of the width direction of the blade body, respectively, and at least one of the first cavity wall and the second cavity wall is provided with a material guide block, and the material guide block has a material guide surface, and the material guide surface is inclined inwardly along the direction away from the suction port.

[0011] By adopting the above technical solution, the materials can be gathered along the material guiding surface toward the middle of the discharge cavity, so as to facilitate the discharge of the materials.

[0012] In a specific possible implementation manner, the material guide block is arranged on the first cavity wall, the material discharge port is opened on the second cavity wall, and the material guide surface extends obliquely in a direction away from the material suction port and close to the material discharge port.

[0013] By adopting the above technical solution, the inclined material guide surface can gradually guide the material to the discharge port, making it easier for the material to be discharged from the discharge port, thereby improving the discharge efficiency.

[0014] In a specific implementation scheme, a gas channel is provided on the material guide block, the gas channel runs through the material guide block, a first air hole connected to the gas channel is provided on the first cavity wall, and a second air hole connected to the gas channel is provided on the material guide surface.

[0015] By adopting the above technical solution, the gas pressure in the discharge chamber can be maintained to avoid affecting the flow of materials due to the low gas pressure in the discharge chamber; at the same time, the first air hole can also ventilate the discharge chamber to purge the material in the discharge chamber to avoid material accumulation.

[0016] In a specific possible implementation manner, there are a plurality of gas channels, the plurality of gas channels are parallel to each other, and each of the gas channels extends along the width direction of the blade body.

[0017] In a specific possible implementation manner, projections of the plurality of gas channels on the second chamber wall are all located in the discharge port.

[0018] By adopting the above technical solution, the discharge port can be directly connected to the outside through the gas channel directly opposite to it, further improving the flow efficiency of the material in the discharge cavity.

[0019] In a specific possible implementation mode, the blade includes a plurality of blades, and the plurality of blades are respectively arranged on the peripheral sides of the suction port, and the outer wall of at least one of the blades is inclined inwardly along a direction close to the suction port.

[0020] By adopting the above technical solution, the scraping effect of the blade can be effectively improved.

[0021] In a specific implementation manner, the discharge port is connected to a pipeline, and the pipeline is provided with an external thread.

[0022] By adopting the above technical solution, the assembly of the pipeline and the exhaust mechanism is greatly facilitated.

[0023] In a specific possible implementation manner, the suction scraper further includes a connecting shaft and a mounting ring disposed at one end of the connecting shaft, and the blade body is disposed at the other end of the connecting shaft.

[0024] By adopting the above technical solution, the assembly of the suction scraper and the centrifuge is greatly facilitated.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. When the blade contacts the inner wall of the drum and scrapes off the material, the scraped material will directly enter the discharge cavity through the suction port and be discharged through the discharge port, which greatly improves the discharge efficiency;

[0027] 2. No need to manually take out materials, thus avoiding the contamination of materials in the centrifuge;

[0028] 3. There is no need to discharge materials through the discharge port at the bottom of the centrifuge, which effectively avoids material residue and reduces the difficulty of cleaning the centrifuge. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the three-dimensional structure of the suction scraper of an embodiment of the present application.

[0030] Figure 2 It is a front view of the suction scraper of the embodiment of the present application.

[0031] Figure 3 yes Figure 2 Schematic diagram of the AA section in.

[0032] Figure 4 yes Figure 2 Schematic diagram of the BB cross section.

[0033] Description of reference numerals:

[0034] 1. Blade body; 2. Blade edge; 21. Blade body; 3. Discharge cavity; 31. First cavity wall; 32. Second cavity wall; 4. Suction port; 5. Discharge port; 6. Transition surface; 7. Guide block; 71. Guide surface; 8. Gas channel; 81. First air hole; 82. Second air hole; 9. Pipeline; 91. External thread; 10. Connecting shaft; 11. Mounting ring. DETAILED DESCRIPTION

[0035] The present application is further described in detail below in conjunction with the accompanying drawings.

[0036] See also Figure 1-4 As shown, a suction scraper for a centrifuge is shown, which includes a connecting shaft 10, a mounting ring 11 arranged at one end of the connecting shaft 10, a blade 1 arranged at the other end of the connecting shaft 10, a blade 2 arranged at one end of the blade 1, a discharge cavity 3 opened in the blade 1, a suction port 4 opened on the blade 1 and connected to the discharge cavity 3, and a discharge port 5 opened on the blade 1 and connected to the discharge cavity 3. The blade 2 surrounds the suction port 4, and the discharge port 5 is connected to the exhaust mechanism through a pipe 9. The blade 1 is square, one side of the blade 1 in the thickness direction is connected to the connecting shaft 10, the mounting ring 11 is used to connect to the mounting shaft in the centrifuge, and the exhaust mechanism is a fan.

[0037] When the blade 2 contacts the inner wall of the centrifuge's drum and scrapes off the material, the scraped material will directly enter the discharge chamber 3 through the suction port 4 and be discharged through the discharge port 5, which greatly improves the discharge efficiency; at the same time, there is no need to use manual material collection, which avoids the contamination of the material in the centrifuge; and there is no need to discharge the material through the discharge port 5 at the bottom of the centrifuge, which effectively avoids material residue and reduces the difficulty of cleaning the centrifuge.

[0038] Specifically, when the suction scraper of the present application is used, the blade body 1 is assembled relative to the centrifuge through the mounting ring 11, and the blade 2 is pressed against the inner wall of the drum, and then the discharge port 5 is connected to the exhaust mechanism;

[0039] Start the exhaust mechanism and the centrifuge. During the rotation of the drum, the blade 2 can scrape off the material adsorbed on the inner wall of the drum. Under the action of the exhaust mechanism, the material enters the discharge cavity 3 from the suction port 4 and is discharged from the blade body 1 through the discharge port 5.

[0040] In this embodiment, combined with Figure 3-4 As shown, the end of the discharge cavity 3 away from the suction port 4 has a transition surface 6, and the transition surface 6 is arc-shaped. The arc-shaped transition surface 6 facilitates the flow of materials, can prevent materials from remaining at the end of the discharge cavity 3 away from the suction port 4, and eliminate the discharge dead angle.

[0041] like Figure 3 As shown, the discharge cavity 3 forms a first cavity wall 31 and a second cavity wall 32 on both sides of the blade body 1 in the width direction, the guide block 7 is arranged on the first cavity wall 31, the discharge port 5 is opened on the second cavity wall 32, and the guide block 7 has a guide surface 71, which extends obliquely in a direction away from the suction port 4 and close to the discharge port 5. The inclined guide surface 71 can gradually guide the material to the discharge port 5, which is convenient for the material to be discharged from the discharge port 5, thereby improving the discharge efficiency.

[0042] In this embodiment, a gas channel 8 is provided on the material guide block 7, and the gas channel 8 runs through the material guide block 7. A first air hole 81 connected to the gas channel 8 is provided on the first cavity wall 31, and a second air hole 82 connected to the gas channel 8 is provided on the material guide surface 71. The gas channel 8 can keep the gas pressure in the discharge cavity 3 consistent with the external gas pressure, so as to avoid affecting the flow of materials due to the excessively low gas pressure in the discharge cavity 3; at the same time, the first air hole 81 can also be connected to the gas source and ventilate the discharge cavity 3 to purge the materials in the discharge cavity 3 to avoid material accumulation.

[0043] Among them, Figure 4 As shown, there are three gas channels 8, which are parallel to each other and arranged in a shape of a finished product, and each gas channel 8 extends along the width direction of the blade body 1, and the projections of the three gas channels 8 on the second cavity wall 32 are all located in the discharge port 5. In this way, the three gas channels 8 are all facing the discharge port 5, and the extension direction of each gas channel 8 is the same as the opening direction of the discharge port 5, so that the discharge port 5 can be directly connected to the outside through the gas channel 8 facing it, further improving the flow efficiency of the material in the discharge cavity 3.

[0044] In this embodiment, combined with Figure 1 As shown, the blade 2 includes two blade bodies 21, which are respectively arranged on opposite sides of the suction port 4 and the arrangement direction of the two blade bodies 21 is the same as the extension direction of the connecting shaft 10. Among them, the outer wall of the blade body 21 away from the connecting shaft 10 is inclined inward along the direction close to the suction port 4. The blade body 21 with an inclined outer wall can effectively improve the scraping effect of the blade 2.

[0045] In this embodiment, an external thread 91 is provided on the pipe 9, and the external thread 91 greatly facilitates the assembly of the pipe 9 and the exhaust mechanism.

[0046] The implementation principle of a suction scraper in the embodiment of the present application is as follows: the blade body 1 is mounted relative to the centrifuge through the mounting ring 11, and the blade 2 is pressed against the inner wall of the drum, and then the discharge port 5 is connected to the exhaust mechanism;

[0047] Start the exhaust mechanism and the centrifuge. During the rotation of the drum, the blade 2 can scrape off the material adsorbed on the inner wall of the drum. Under the action of the exhaust mechanism, the material enters the discharge cavity 3 from the suction port 4 and is discharged from the blade body 1 through the discharge port 5.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A suction scraper for a centrifuge, characterized in that: The scraper comprises a blade body (1), a blade (2) arranged at one end of the blade body (1), a discharge cavity (3) opened in the blade body (1), and a suction port (4) opened on the blade body (1) and connected to the discharge cavity (3), wherein the blade (2) surrounds the circumference of the suction port (4), and the suction scraper further comprises a discharge port (5) opened on the blade body (1) and connected to the discharge cavity (3), and the discharge port (5) is used to be connected to an exhaust mechanism.

2. The suction scraper for a centrifuge according to claim 1, characterized in that: One end of the discharge cavity (3) away from the suction port (4) has a transition surface (6), and the transition surface (6) is in an arc shape.

3. A suction scraper for a centrifuge according to claim 1 or 2, characterized in that: The material discharge cavity (3) is formed with a first cavity wall (31) and a second cavity wall (32) on both sides of the blade body (1) in the width direction, respectively; a material guide block (7) is provided on at least one of the first cavity wall (31) and the second cavity wall (32); the material guide block (7) has a material guide surface (71), and the material guide surface (71) is inclined inwardly in a direction away from the material suction port (4).

4. The suction scraper for a centrifuge according to claim 3, characterized in that: The material guide block (7) is arranged on the first cavity wall (31), the material discharge port (5) is opened on the second cavity wall (32), and the material guide surface (71) extends obliquely in a direction away from the material suction port (4) and close to the material discharge port (5).

5. The suction scraper for a centrifuge according to claim 3, characterized in that: The material guide block (7) is provided with a gas channel (8), the gas channel (8) runs through the material guide block (7), the first cavity wall (31) is provided with a first gas hole (81) connected to the gas channel (8), and the material guide surface (71) is provided with a second gas hole (82) connected to the gas channel (8).

6. The suction scraper for a centrifuge according to claim 5, characterized in that: There are a plurality of gas channels (8), the plurality of gas channels (8) are parallel to each other, and each gas channel (8) extends along the width direction of the blade body (1).

7. The suction scraper for a centrifuge according to claim 6, characterized in that: The projections of the plurality of gas channels (8) on the second chamber wall (32) are all located in the discharge port (5).

8. The suction scraper for a centrifuge according to claim 1, characterized in that: The blade (2) comprises a plurality of blade bodies (21), wherein the plurality of blade bodies (21) are respectively arranged on the peripheral sides of the suction port (4), and the outer wall of at least one of the blade bodies (21) is inclined inwardly in a direction close to the suction port (4).

9. The suction scraper for a centrifuge according to claim 1, characterized in that: The discharge port (5) is connected to a pipeline (9), and the pipeline (9) is provided with an external thread (91).

10. The suction scraper for a centrifuge according to claim 1, characterized in that: The suction scraper further comprises a connecting shaft (10) and a mounting ring (11) arranged at one end of the connecting shaft (10); the blade body (1) is arranged at the other end of the connecting shaft (10).

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