Spiral feeding mechanism of horizontal scraper discharging centrifugal machine

Abstract

The utility model discloses a spiral feeding mechanism of a horizontal type scraper discharging centrifugal machine, which relates to the technical field of scraper centrifugal machines and comprises a material conveying barrel, a rotating shaft and a spiral portion are arranged in the material conveying barrel, and the material conveying barrel is provided with a driving portion used for driving the rotating shaft to rotate. The inner groove is formed in the rotating shaft, the movable plate and the brush can be contained in the inner groove when cleaning is not carried out, the size of the conveying space in the conveying barrel is not affected, when cleaning is needed, the brush can stretch out through the telescopic part to be fully attached to the inner wall of the conveying barrel, the driving part is used for driving the rotating shaft and the brush to rotate, and cleaning is convenient. The brush is matched with cleaning liquid to clean the inner wall of the conveying barrel, due to the fact that the brush is adopted for cleaning, materials on the inner wall of the conveying barrel can be effectively scraped away, after cleaning is completed, the telescopic part can drive the brush to retract into the inner groove, the surface of the brush can be cleaned up through the filtering holes in the surface of the filtering plate, and cleaning of the next time is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of scraper centrifuges, in particular to a spiral feeding mechanism of a horizontal scraper unloading centrifuge. Background Art

[0002] The horizontal scraper unloading centrifuge is a machine that uses centrifugal force to separate two immiscible liquids with different densities from a suspension of solid particles. It includes a feeding device, which is a feeding barrel with inlet and outlet ports. A screw feeder is arranged inside the feeding barrel. The scraper is arranged near the feed port. Its function is to scrape off the material attached to the inner wall of the rotor, so that the material falls from the feed port into the screw feeder, and the material is sent out of the discharge port through the screw feeder. For filter cakes with high moisture content, it is easy to adhere to the inner wall of the discharge device during the discharge process.

[0003] The Chinese invention patent application with publication number CN116727120A discloses a scraper centrifuge residue-free spiral discharge device, which is provided with a one-way nozzle on the surface of the discharge spiral of the spiral feeder. As the discharge spiral rotates, gas is sprayed from the one-way nozzle to blow and clean the discharge hopper (feeding barrel) to prevent solid materials from sticking and clogged in the discharge hopper. Then, cleaning liquid is added to the discharge hopper, and the discharge spiral rotates and stirs the cleaning liquid under the drive of the transmission mechanism to stir and wash the attached materials.

[0004] This solution has the following problems: since there is cleaning liquid in the discharge hopper, bubbles will be generated in the cleaning liquid when the one-way nozzle sprays the gas, and the gas sprayed from the one-way nozzle is blocked by the cleaning liquid, further weakening the air pressure of the spray, causing the impact force of the gas on the inner wall of the discharge hopper to decrease, thereby reducing the cleaning effect. Utility Model Content

[0005] The utility model aims to provide a spiral feeding mechanism for a horizontal scraper unloading centrifuge to solve the technical problem that the scraper centrifuges on the market cannot fully clean the materials attached to the inner wall of the feeding barrel after unloading.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a spiral feeding mechanism of a horizontal scraper unloading centrifuge, comprising a feeding cylinder, a rotating shaft and a spiral part are arranged in the feeding cylinder, the feeding cylinder is provided with a driving part for driving the rotating shaft to rotate, the rotating shaft is provided with a plurality of cleaning components extending along the axis direction thereof, the cleaning components are used to clean the inner wall of the feeding cylinder, and the cleaning components include:

[0007] A movable plate, which is slidably matched with an inner groove provided in the rotating shaft;

[0008] A brush, which is arranged on the outer side of the movable plate;

[0009] A filter plate with filter holes is provided, and the filter plate is arranged at the opening of the inner tank;

[0010] The telescopic part is used to push the movable plate to telescopically slide along the inner groove, thereby driving the brush to extend out of the filter hole to fit the inner wall of the feed barrel, or driving the brush to retract into the filter hole so that the material attached to the brush surface is scraped off by the inner wall of the filter hole.

[0011] As a preferred technical solution of the utility model, the feed cylinder further comprises: a feed port, a discharge port and a flushing port opened on its outer surface, and the feed port is used for installing a scraper.

[0012] As a preferred technical solution of the utility model, the inner groove is opened in the rotating shaft and between the intervals of the spiral parts, and the length of the inner groove does not exceed the length of the intervals of the spiral parts.

[0013] As a preferred technical solution of the present utility model, the driving part includes a motor arranged at one end of the feeding cylinder, and the output shaft of the motor is connected to the rotating shaft.

[0014] As a preferred technical solution of the utility model, the telescopic part includes: an electric push rod whose bottom is connected to the inner groove, and an output end of the electric push rod is connected to the movable plate.

[0015] As a preferred technical solution of the utility model, the spiral feeding mechanism also includes:

[0016] A hinge disposed outside the rotating shaft;

[0017] A sealing cover for sealing the filter plate, wherein the sealing cover is connected to a hinge;

[0018] A magnet is provided on the sealing cover.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] The utility model provides an inner groove in the rotating shaft, so that the movable plate and the brush can be stored in the inner groove when not cleaning, without affecting the size of the feeding space inside the feeding barrel. When cleaning is needed, the brush can be extended through the telescopic part to fully fit the inner wall of the feeding barrel, and the driving part is used to drive the rotating shaft and the brush to rotate, and the brush cooperates with the cleaning liquid to clean the inner wall of the feeding barrel. Since the brush is used for cleaning, the material on the inner wall of the feeding barrel can be effectively scraped off. When cleaning is completed, the telescopic part can drive the brush to retract into the inner groove, and the filter holes on the surface of the filter plate can clean the surface of the brush, which is convenient for the next cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of a partially cutaway three-dimensional structure of the utility model;

[0022] Figure 2It is a schematic diagram of the three-dimensional structure of the rotating shaft of the utility model;

[0023] Figure 3 This is a schematic diagram of the three-dimensional structure of the movable plate, brush and filter plate of the utility model;

[0024] Figure 4 For the utility model Figure 3 The enlarged structural diagram at A in the middle;

[0025] Figure 5 It is a schematic diagram of a partially cutaway three-dimensional structure of the rotating shaft of the utility model.

[0026] In the figure: 1. feeding barrel; 2. feeding port; 3. discharging port; 4. scraper; 5. motor; 6. rotating shaft; 7. spiral part; 8. flushing port; 9. inner groove; 10. electric push rod; 11. movable plate; 12. brush; 13. filter plate; 14. filter hole; 15. hinge; 16. sealing cover; 17. magnet. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] See also Figure 1-Figure 5 The utility model provides a technical solution: a spiral feeding mechanism of a horizontal scraper unloading centrifuge, comprising a feeding barrel 1, the feeding barrel 1 further comprising: a feeding port 2, a discharging port 3 and a flushing port 8 opened on its outer surface, the feeding port 2 is used to install a scraper 4, a rotating shaft 6 and a spiral portion 7 are arranged in the feeding barrel 1, and the feeding barrel 1 is provided with a driving portion for driving the rotating shaft 6 to rotate; in this embodiment, the driving portion comprises a motor 5 arranged at one end of the feeding barrel 1, and the output shaft of the motor 5 is connected to the rotating shaft 6;

[0029] The above technical solution can realize the unloading of materials. After the scraper 4 is installed to scrape the material into the feed port 2, the motor 5 drives the rotating shaft 6 to rotate, and the rotating shaft 6 drives the spiral part 7 on its surface to rotate, thereby transporting the material to the discharge port 3, and the material is unloaded through the discharge port 3.

[0030] like Figure 1 As shown, the rotating shaft 6 is provided with a plurality of cleaning components extending along the axis direction thereof, and the cleaning components are used to clean the inner wall of the feeding cylinder 1;

[0031] like Figure 2 and Figure 3 As shown, the cleaning assembly includes: a movable plate 11, which is slidably matched with an inner groove 9 opened in the rotating shaft 6; the inner groove 9 is opened in the rotating shaft 6 and between the intervals of the spiral part 7, and the length of the inner groove 9 does not exceed the interval length of the spiral part 7;

[0032] like Figure 3 As shown, the cleaning assembly includes a brush 12, which is arranged on the outer side of the movable plate 11;

[0033] like Figure 3 As shown, the cleaning assembly includes: a filter plate 13 with filter holes 14, and the filter plate 13 is arranged at the opening of the inner tank 9;

[0034] like Figure 3 As shown, the cleaning assembly includes: a telescopic part, which is used to push the movable plate 11 to telescopically slide along the inner groove 9, thereby driving the brush 12 to extend out of the filter hole 14 to fit the inner wall of the feeding barrel 1, or driving the brush 12 to retract into the filter hole 14, so that the material attached to the surface of the brush 12 is scraped off by the inner wall of the filter hole 14; in this embodiment, the telescopic part includes: an electric push rod 10 connected to the inner groove 9 at the bottom, and the output end of the electric push rod 10 is connected to the movable plate 11;

[0035] The above technical solution can realize efficient cleaning of the inner wall of the feeding barrel 1. When the inner wall of the feeding barrel 1 needs to be cleaned, the discharge port 3 is closed, and a cleaning liquid is injected into the feeding barrel 1 through the flushing port 8, and then the electric push rod 10 in the rotating shaft 6 is started. The electric push rod 10 pushes the movable plate 11 toward the filter plate 13, and the movable plate 11 drives the brush 12 to extend from the filter hole 14 on the surface of the filter plate 13 until the brush 12 is in contact with the inner wall of the feeding barrel 1, and the motor 5 is started to drive the brush 12 to move. The movable shaft 6 rotates, and the shaft 6 drives the brush 12 to rotate. The brush 12 cooperates with the cleaning liquid to clean the inner wall of the feeding barrel 1 360 degrees. After cleaning, the electric push rod 10 is started to drive the movable plate 11 to reset, and the movable plate 11 drives the brush 12 on its surface to retract. During the retraction process, the brush 12 rubs against the filter holes 14 on the surface of the filter plate 13, thereby scraping off the material on the surface of the brush 12, thereby cleaning the brush 12, and finally the discharge port 3 is opened to release the cleaned dirty water.

[0036] Further, such as Figure 5 As shown, the spiral feeding mechanism further includes: a hinge 15 disposed outside the rotating shaft 6; a sealing cover 16 for sealing the filter plate 13, the sealing cover 16 being connected to the hinge 15; a magnet 17 disposed on the sealing cover 16;

[0037] The above technical solution can prevent materials from entering the filter holes 14 of the filter plate 13. During normal use, the sealing cover 16 is adsorbed on the outside of the rotating shaft 6 due to the magnetic force of the magnet 17, thereby covering the filter holes 14 on the surface of the filter plate 13. When cleaning is required, the motor 5 is started to drive the rotating shaft 6 to rotate in the opposite direction, so that the sealing cover 16 generates an eccentric force until the eccentric force is greater than the magnetic force of the magnet 17. The sealing cover 16 opens, and the electric push rod 10 can be started to drive the brush 12 to extend from the filter hole 14.

[0038] Working principle: when it is necessary to clean the inner wall of the feeding barrel 1, close the discharge port 3, inject cleaning liquid into the feeding barrel 1 through the flushing port 8, and then start the electric push rod 10 in the rotating shaft 6, the electric push rod 10 pushes the movable plate 11 to move toward the filter plate 13, and the movable plate 11 drives the brush 12 to extend from the filter hole 14 on the surface of the filter plate 13 until the brush 12 fits the inner wall of the feeding barrel 1, start the motor 5 to drive the rotating shaft 6 to rotate, and the rotating shaft 6 drives the brush 12 to rotate. The brush 12 cooperates with the cleaning liquid to clean the inner wall of the feeding barrel 1 360 degrees. After cleaning, start the electric push rod 10 to drive the movable plate 11 to reset, and the movable plate 11 drives the brush 12 on its surface to retract. During the retraction process, the brush 12 rubs against the filter hole 14 on the surface of the filter plate 13, thereby scraping off the material on the surface of the brush 12, and cleaning the brush 12. Finally, open the discharge port 3 to release the cleaned dirty water, and the cleaning work is completed.

[0039] Thereby completing a series of tasks, the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0040] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A spiral feeding mechanism of a horizontal scraper discharge centrifuge, comprising a feeding cylinder (1), wherein a rotating shaft (6) and a spiral portion (7) are arranged in the feeding cylinder (1), and wherein a driving portion for driving the rotating shaft (6) to rotate is arranged in the feeding cylinder (1), characterized in that: The rotating shaft (6) is provided with a plurality of cleaning components extending along the axis direction thereof, the cleaning components being used to clean the inner wall of the feeding cylinder (1), the cleaning components comprising: A movable plate (11) slidably engaged with an inner groove (9) formed in the rotating shaft (6); a brush (12) disposed on the outer side of the movable plate (11); A filter plate (13) having filter holes (14), wherein the filter plate (13) is arranged at the opening of the inner groove (9); The telescopic portion is used to push the movable plate (11) to slide telescopically along the inner groove (9), thereby driving the brush (12) to extend out of the filter hole (14) to fit the inner wall of the feed barrel (1), or to drive the brush (12) to retract into the filter hole (14), so that the material attached to the surface of the brush (12) is scraped off by the inner wall of the filter hole (14).

2. The spiral feeding mechanism of the horizontal scraper discharge centrifuge according to claim 1, characterized in that: The feeding cylinder (1) further comprises: a feeding port (2), a discharging port (3) and a flushing port (8) which are opened on its outer surface; the feeding port (2) is used for installing a scraper (4).

3. The spiral feeding mechanism of the horizontal scraper discharge centrifuge according to claim 1, characterized in that: The inner groove (9) is opened in the rotating shaft (6) and between the intervals of the spiral portion (7), and the length of the inner groove (9) does not exceed the length of the intervals of the spiral portion (7).

4. The spiral feeding mechanism of the horizontal scraper discharge centrifuge according to claim 1, characterized in that: The driving unit comprises a motor (5) arranged at one end of the feeding cylinder (1), and an output shaft of the motor (5) is connected to a rotating shaft (6).

5. The spiral feeding mechanism of the horizontal scraper discharge centrifuge according to claim 1, characterized in that: The telescopic portion comprises: an electric push rod (10) whose bottom is connected to the inner groove (9); an output end of the electric push rod (10) is connected to a movable plate (11).

6. The spiral feeding mechanism of the horizontal scraper discharge centrifuge according to claim 1, characterized in that: The spiral feeding mechanism also includes: A hinge (15) disposed outside the rotating shaft (6); a sealing cover (16) for sealing the filter plate (13), the sealing cover (16) being connected to the hinge (15); A magnet (17) is provided on the sealing cover (16).

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