Horizontal spiral discharge sedimentation centrifuge

Abstract

The utility model discloses a horizontal spiral unloading sedimentation centrifuge which comprises a machine frame, a rotary drum and a spiral assembly, the spiral assembly comprises a rotary shaft, spiral blades are axially arranged on the periphery of the rotary shaft, a feeding pipe is arranged outside the rotary drum and extends into the rotary shaft, the feeding pipe comprises an inner pipe and an outer pipe, and the inner pipe is communicated with the outer pipe. The inner pipe is sleeved with the outer pipe, the outer pipe is sleeved with the rotating shaft, the rotating shaft is sleeved with the outer pipe, a plurality of feeding ports are formed in the surface of the rotating shaft, the feeding ports are communicated with the inner pipe, and a plurality of flushing ports used for flushing are further formed in the surface of the rotating shaft. Water is introduced into the outer pipe, the water in the outer pipe is introduced into the rotary drum through the flushing opening by rotating the rotary shaft, solid blocks condensed on the inner wall of the rotary drum are flushed through water flushing, and the influence of noise overflow generated by the rotary drum and the rotary shaft on the outside is reduced by arranging a rubber pad and sound absorption cotton. The abrasion risk of the outer wall of the rotary drum is reduced by arranging the anti-abrasion pad.

Description

Technical Field

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

[0002] The horizontal sedimentation spiral unloading centrifuge is composed of a high-speed drum, a spiral and a differential. The blades on the spiral pusher push the liquid to the small end of the drum and discharge it. The liquid overflows through the overflow hole at the large end of the drum. This cycle continues to circulate to achieve the purpose of continuous separation. It is mainly used in industry. The horizontal sedimentation spiral unloading centrifuge is mainly composed of a high-speed drum, a spiral with the same direction as the drum and a slightly higher or lower speed than the drum, and a differential. When the suspension to be separated enters the centrifuge drum, the high-speed rotating drum generates a strong centrifugal force to settle the solid particles with a density larger than the liquid phase to the inner wall of the drum. Due to the different speeds of the spiral and the drum, there is a relative motion between the two. The relative motion of the spiral and the drum is used to push the solid phase deposited on the inner wall of the drum to the outlet of the small end of the drum for discharge. The clear liquid after separation is discharged from the other end of the centrifuge. The function of the differential is to form a certain speed between the drum and the spiral.

[0003] In the prior art horizontal spiral unloading sedimentation centrifuge, solid residues will condense on the inner wall of the drum during use, causing inconvenience in discharge and centrifugation, and troublesome cleaning after use. In addition, the prior art centrifuge generates a lot of noise during use, so improvement is needed. Utility Model Content

[0004] The utility model aims to provide a horizontal spiral unloading sedimentation centrifuge to solve the technical problems in the prior art that solid residues of the centrifuge will condense on the inner wall of the drum when in use, causing inconvenience in discharge and centrifugation, and troublesome cleaning after use.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The utility model provides a horizontal spiral unloading sedimentation centrifuge, comprising a frame, the frame is connected to a drum, and the drum is provided with a spiral assembly for cooperating to realize centrifugation;

[0007] The spiral assembly includes a rotating shaft for realizing rotation, the outer circumference of the rotating shaft is axially provided with spiral blades, the outside of the rotating drum is provided with a feed pipe extending to the inside of the rotating shaft, the feed pipe includes an inner tube and an outer tube, the outer tube is axially sleeved on the outside of the inner tube, a plurality of feed ports are provided on the surface of the rotating shaft, the feed ports are in a connected state with the inner tube, and a plurality of flushing ports for flushing are also provided on the surface of the rotating shaft.

[0008] A feed port is arranged on the surface of the rotating shaft to connect with the inner tube, and the feeding of the centrifuge is realized through the inner tube. An outer tube is sleeved outside the inner tube, and a plurality of flushing ports are arranged on the surface of the rotating shaft. Water is introduced into the outer tube and the water in the outer tube is introduced into the inside of the drum through the flushing ports by rotating the rotating shaft. The solid blocks condensed on the inner wall of the drum are flushed by water. After the centrifugal work of the centrifuge is completed, water can be introduced to clean the inside of the drum as a whole, so as to prepare for the next centrifugation.

[0009] Optionally, the drum includes a straight section and a tapered section, the outer diameter of the spiral blade is configured to match the inner diameter of the straight section and the tapered section, the feed port is arranged at the end of the tapered section of the drum, a disc is connected to the end of the inner tube, a plurality of through holes are arranged on the side of the disc to match the feed port, and the feeding efficiency of the centrifuge is increased by arranging a disc structure and arranging a plurality of through holes on the side of the disc to connect to the feed port.

[0010] Optionally, the end of the drum straight section is set as a liquid phase discharge port, the end of the drum tapered section is set as a solid phase discharge port, and the drum tapered section is set as a structure with a diameter gradually tapering toward the solid phase discharge port;

[0011] A sealed shell fitting the drum is arranged on the outside of the frame, a rubber pad is fitted at the connection between the sealed shell and the drum, and the sealed shell is provided with fixing bolts connected to the rubber pad, and the sealed shell is filled with sound-absorbing cotton for reducing noise. The connection and fixation between the sealed shell and the drum are achieved by arranging the rubber pad, thereby increasing the sealing effect, and the noise generated by the drum and the shaft is reduced from overflowing and affecting the outside world by filling the sealed shell with sound-absorbing cotton.

[0012] Optionally, the frame is provided with an installation groove for installation, the drum is snap-fitted and installed in the installation groove, a plurality of snap-fit ​​plates are provided in the installation groove, the snap-fit ​​plates cooperate with the inner wall of the installation groove to snap-fit ​​with the straight section or the tapered section of the drum, and a pair of snap-fit ​​plates are provided at the connection between the straight section and the tapered section of the drum to achieve snap-fit ​​connection, and anti-wear anti-friction pads are provided at the joint between the drum and the inner wall of the snap-fit ​​plate, the snap-fit ​​connection of the drum is achieved by providing the snap-fit ​​plate, and the risk of wear on the outer wall of the drum is reduced by providing the anti-friction pad on the contact surface between the drum and the snap-fit ​​plate.

[0013] Optionally, the frame is further provided with motors for controlling the rotation of the drum and the shaft respectively, and the motors are connected with a differential.

[0014] Optionally, a support foot is provided at the bottom of the frame for support, a fixed flange is welded at the end of the support foot, a lifting column is movably connected to the fixed flange, a compression spring is abutted against the bottom of the support foot, and the other end of the compression spring is abutted against a round table with a boss-type structure.

[0015] Beneficial effects and advantages of the utility model:

[0016] The horizontal spiral unloading sedimentation centrifuge is connected with an inner tube by arranging a feed port on the surface of the rotating shaft, and the feeding of the centrifuge is realized through the inner tube. An outer tube is sleeved outside the inner tube, and a plurality of flushing ports are arranged on the surface of the rotating shaft. Water is introduced into the outer tube and the rotating shaft is rotated to allow the water in the outer tube to be introduced into the inside of the drum through the flushing port. The solid blocks condensed on the inner wall of the drum are flushed by water flushing. After the centrifugal work of the centrifuge is completed, water can be introduced to clean the inside of the drum as a whole to prepare for the next centrifugation. The connection and fixation between the closed shell and the drum are realized by arranging a rubber pad to increase the sealing effect. Sound-absorbing cotton is filled in the closed shell to reduce the noise generated by the drum and the rotating shaft from overflowing and affecting the outside world. The clamping connection of the drum is realized by arranging a clamping plate, and the risk of wear of the outer wall of the drum is reduced by arranging an anti-wear pad on the contact surface between the drum and the clamping plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a partial cross-sectional view of the inner tube of the utility model;

[0019] Figure 3 It is a schematic diagram of the internal structure of the closed shell of the utility model.

[0020] In the figure: 1-frame, 11-mounting slot, 12-support foot, 13-fixing flange, 14-lifting column, 15-compression spring, 16-differential, 17-motor, 18-sealed shell, 181-rubber pad, 182-sound-absorbing cotton, 183-fixing bolt, 2-drum, 21-clamping plate, 22-anti-wear pad, 23-rotating shaft, 24-spiral blade, 25-inner tube, 26-outer tube, 27-feed port, 28-flushing port, 29-solid phase discharge port, 30-liquid phase discharge port. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0022] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0024] An embodiment, such as Figures 1 to 3 As shown, this embodiment provides a horizontal spiral unloading sedimentation centrifuge, including a frame 1, wherein the frame 1 is provided with a mounting groove 11, wherein a drum 2 is engaged with the mounting groove 11, wherein a spiral assembly is provided in the drum 2;

[0025] refer to Figure 1 and Figure 2As shown, in this embodiment, the drum 2 is preferably configured to be connected to a straight section and a tapered section, wherein the tapered section is configured to be a structure with a gradually reduced diameter toward the outer port. In this embodiment, the spiral assembly includes a shaft 23 and a spiral blade 24, wherein the spiral blade 24 is a spiral outer diameter adapted to the inner wall of the drum 2 and welded to the outer periphery of the shaft 23, the frame 1 is further provided with a motor 17 for controlling the rotation of the drum 2 and the shaft 23, respectively, the motor 17 is connected to a differential 16, and in this embodiment, a feed pipe is provided on the outside of the drum 2 to extend to the inside of the shaft 23, wherein the feed pipe includes an inner tube 25 and an outer tube 26 in the prior art. 26, wherein the inner tube 25 and the outer tube 26 are both configured to be hollow and the outer tube 26 is sleeved on the outside of the inner tube 25. In this embodiment, the end of the inner tube 25 located inside the drum 2 is connected with a disc, wherein the side of the disc is provided with a plurality of through holes. In this embodiment, the surface of the rotating shaft 23 is provided with a plurality of feed ports 27 adapted to be connected with the through holes. In this embodiment, the surface of the rotating shaft 23 is also provided with a plurality of flushing ports 28, and the surface of the outer tube 26 is provided with a plurality of holes for facilitating water discharge in an array. In this embodiment, the end of the straight section of the drum 2 is configured as a liquid phase discharge port 30, and the end of the tapered section of the drum 2 is configured as a solid phase discharge port 29;

[0026] When in use, the solid-liquid mixture to be centrifuged is transported to the disc through the inner tube 25, and the solid-liquid mixture is transported to the inside of the drum 2 under the action of the rotation of the shaft 23 and the feed port 27. A speed difference is generated between the drum 2 and the spiral blade 24 driven by the shaft 23. The solid phase product is discharged through the solid phase discharge port 29, and the liquid phase product is discharged through the liquid phase discharge port 30. When the solid phase product condenses on the inner wall of the drum 2 and affects subsequent centrifugation, water is introduced into the outer tube 26 through the flushing port 28 to enter the reduction section of the drum 2 to achieve mixed flushing, thereby breaking the condensate. When the centrifuge needs to be flushed after the centrifugation task is completed, the flushing of the centrifuge can be achieved directly by injecting water into the outer tube 26, which is convenient and quick.

[0027] refer to Figure 1 and Figure 3 As shown, in this embodiment, a sealed shell 18 is provided on the outside of the frame 1 to fit the drum 2, wherein a rubber pad 181 is provided at the connection between the sealed shell 18 and the drum 2. In this embodiment, the sealed shell 18 is provided with fixing bolts 183 connected to the rubber pad 181, and in this embodiment, the interior of the sealed shell 18 is filled with sound-absorbing cotton 182 in the prior art.

[0028] In this embodiment, the frame 1 is provided with a mounting groove 11, wherein the drum 2 is snap-fitted and installed in the mounting groove 11. In this embodiment, a plurality of snap-fit ​​plates 21 are further provided in the mounting groove 11, wherein the snap-fit ​​plates 21 cooperate with the inner wall of the mounting groove 11 to snap-fit ​​with the straight section or the tapered section of the drum 2, and a pair of snap-fit ​​plates 21 are provided at the connection between the straight section and the tapered section of the drum 2 to realize snap-fit ​​connection, and anti-wear pads 22 are provided at the joint between the drum 2 and the inner wall of the snap-fit ​​plates 21.

[0029] In this embodiment, a support foot 12 for support is provided at the bottom of the frame 1, and a fixing flange 13 is welded at the end of the support foot 12, wherein a lifting column 14 is movably connected to the fixing flange 13, and a compression spring 15 is abutted at the bottom of the support foot 12, and the other end of the compression spring 15 is abutted against a round table with a boss-type structure.

[0030] When in use, the anti-wear pad 22 is glued to the contact surface between the drum 2 and the clamping plate 21 and clamped to the clamping plate 21, the rubber pad 181 with glue is glued to the frame 1, and the sealed shell 18 is fixed to the rubber pad 181 by the fixing bolts 183. At the same time, sound-absorbing cotton 182 is attached to the inside of the sealed shell 18, and the frustum at the bottom of the supporting foot 12 is buried in concrete or soil. The stability of the connection with the concrete or soil space is increased by setting the compression spring 15.

[0031] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present invention and the claims, which all fall within the protection of the present invention.

Claims

1. Horizontal spiral unloading sedimentation centrifuge, characterized by: The machine comprises a frame (1), the frame (1) being connected to a rotating drum (2), the rotating drum (2) being provided with a spiral assembly for cooperating to realize centrifugation; The spiral assembly comprises a rotating shaft (23) for realizing rotation, the outer periphery of the rotating shaft (23) is axially provided with spiral blades (24), the outer side of the rotating drum (2) is provided with a feed pipe extending to the inside of the rotating shaft (23), the feed pipe comprises an inner tube (25) and an outer tube (26), the outer tube (26) is axially sleeved outside the inner tube (25), a plurality of feed ports (27) are provided on the surface of the rotating shaft (23), the feed ports (27) are in a communicating state with the inner tube (25), and a plurality of flushing ports (28) for flushing are also provided on the surface of the rotating shaft (23).

2. The horizontal spiral unloading sedimentation centrifuge according to claim 1, characterized in that: The drum (2) comprises a straight section and a tapered section, the outer diameter of the spiral blade (24) is arranged to match the inner diameter of the straight section and the tapered section, the feed port (27) is arranged at the end of the tapered section of the drum (2), a disc is connected to the end of the inner tube (25), and a plurality of through holes are arranged on the side of the disc to match and connect with the feed port (27).

3. The horizontal spiral unloading sedimentation centrifuge according to claim 2, characterized in that: The end of the straight section of the drum (2) is arranged as a liquid phase discharge port (30), the end of the tapered section of the drum (2) is arranged as a solid phase discharge port (29), and the tapered section of the drum (2) is arranged as a structure with a diameter gradually tapering towards the solid phase discharge port (29); The frame (1) is provided with a sealed shell (18) on the outside thereof and is fitted with the drum (2); a rubber pad (181) is fitted on the connection between the sealed shell (18) and the drum (2); the sealed shell (18) is provided with fixing bolts (183) connected to the rubber pad (181); and the sealed shell (18) is filled with sound-absorbing cotton (182) for reducing noise.

4. The horizontal spiral unloading sedimentation centrifuge according to claim 3, characterized in that: The frame (1) is provided with a mounting groove (11) for mounting, the drum (2) is mounted in the mounting groove (11), a plurality of snap-fit ​​plates (21) are provided in the mounting groove (11), the snap-fit ​​plates (21) cooperate with the inner wall of the mounting groove (11) to snap-fit ​​with the straight section or the tapered section of the drum (2), a pair of snap-fit ​​plates (21) are provided at the connection between the straight section and the tapered section of the drum (2) to achieve snap-fit ​​connection, and anti-wear pads (22) are provided at the contacting position between the drum (2) and the inner wall of the snap-fit ​​plates (21) to prevent wear.

5. The horizontal spiral unloading sedimentation centrifuge according to claim 1, characterized in that: The frame (1) is further provided with a motor (17) for controlling the rotation of the rotating drum (2) and the rotating shaft (23), respectively; the motor (17) is connected to a differential (16).

6. The horizontal spiral unloading sedimentation centrifuge according to claim 1, characterized in that: A support foot (12) for supporting is arranged at the bottom of the frame (1), a fixing flange (13) is welded to the end of the support foot (12), a lifting column (14) is movably connected to the fixing flange (13), a compression spring (15) is abutted against the bottom of the support foot (12), and the other end of the compression spring (15) is abutted against a round table with a boss-type structure.

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