A horizontal screw decanter centrifuge screw structure

Abstract

The utility model belongs to centrifugal machinery technical field, specifically is a horizontal helical settling centrifuge screw structure, including centrifuge base, centrifuge base end is provided with motor and transport bottom shell, the transport bottom shell top hinged connection has transport cover shell, the centrifuge base bottom is provided with receiving pad, receiving pad bottom is fixed with a plurality of group dispersion pad piece, dispersion pad piece bottom is fixed with transmission pad, transmission pad bottom is fixed with floor, receiving pad and floor between set up adjustable support column mechanism, through setting up flexible damping composite base, can reduce vibration transmission, through multilayer material absorption and dispersion vibration energy, reduce the impact and friction between components, prolong the replacement cycle of bearing, sealing element and so on vulnerable parts.

Description

Technical Field

[0001] This utility model belongs to the field of centrifugal machinery technology, specifically a spiral structure for a horizontal spiral sedimentation centrifuge. Background Technology

[0002] A horizontal spiral sedimentation centrifuge is a device that uses the principle of centrifugal sedimentation to achieve solid-liquid separation or particle classification.

[0003] The spiral structure of a horizontal spiral sedimentation centrifuge is the core component for solid phase transport and separation, and its design directly affects the separation efficiency, processing capacity and service life of the equipment.

[0004] When a centrifuge is running, factors such as uneven material distribution, component processing errors, or foundation vibration can cause the equipment to vibrate. These vibrations are transmitted to components such as the screw shaft, bearings, and drum in the form of mechanical waves, causing the components to be subjected to periodically changing stress, i.e., alternating stress. Under the repeated action of alternating stress, micro-cracks will first appear on the surface of the shaft. These cracks continue to expand and connect as the vibration continues. When the cracks expand to a certain extent, they will cause the screw shaft to break, which will seriously affect the normal operation of the centrifuge. Therefore, a screw structure for a horizontal screw sedimentation centrifuge is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology and solve at least one of the technical problems mentioned in the background technology, this utility model proposes a spiral structure for a horizontal spiral sedimentation centrifuge.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The spiral structure of the horizontal spiral sedimentation centrifuge of this utility model includes a centrifuge base; a motor and a transport bottom shell are provided at the end of the centrifuge base; a transport cover shell is hinged to the top of the transport bottom shell; a receiving pad is provided at the bottom of the centrifuge base; multiple sets of dispersion pads are fixed to the bottom of the receiving pad; a transmission pad is fixed to the bottom of the dispersion pad; a floor is fixed to the bottom of the transmission pad; an adjustable support column mechanism is provided between the receiving pad and the floor; the bottom layer of the transmission pad uses high-damping rubber material to absorb low-frequency vibration; the middle layer of the dispersion pads is a honeycomb metal structure to disperse vibration energy; the top layer of the receiving pad is an elastic composite material adapted to the centrifuge base.

[0007] Preferably, the adjustable support column mechanism includes a positioning column that runs through the middle of the floor and the transmission pad; a threaded column is provided at the end of the positioning column; an internal threaded cylinder is rotatably connected to the side wall of the threaded column; and the internal threaded cylinder is fixedly connected to the receiving pad.

[0008] Preferably, the sidewalls of the dispersion pad are symmetrically provided with connecting rods; a buffer mechanism is provided between the connecting rods.

[0009] Preferably, the motor output end is provided with a rotating roller; the rotating roller is disposed inside the transport base shell; a first spiral blade, a second spiral blade, and a third spiral blade are fixedly connected to the side wall of the rotating roller; the pitches of the first spiral blade, the second spiral blade, and the third spiral blade are all different.

[0010] Preferably, the buffer mechanism includes a fixed rod disposed between the connecting rods; a spring rod is fixedly connected to the side wall of the fixed rod; and the spring rod and the connecting rod are fixedly connected.

[0011] Preferably, the inner wall of the transport bottom shell is provided with multiple sets of counterweights.

[0012] Preferably, the counterweights are positioned differently within the ranges of the first, second, and third spiral blades.

[0013] The beneficial effects of this utility model are: This utility model provides a spiral structure for a horizontal spiral sedimentation centrifuge. The flexible vibration-damping composite base reduces vibration transmission, and the multi-layered materials absorb and disperse vibration energy, reducing impact and friction between components and extending the replacement cycle of vulnerable parts such as bearings and seals.

[0014] This utility model provides a spiral structure for a horizontal spiral sedimentation centrifuge. With the addition of adjustable support columns, the height can be adjusted according to the equipment load and operating status to ensure that the centrifuge is installed horizontally and further reduce vibration transmission. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0016] In the attached diagram: Figure 1 This is a perspective view of the present invention.

[0017] Figure 2 This is a perspective view of the dispersion pad in this utility model.

[0018] Figure 3 This is a perspective view of the threaded column in this utility model.

[0019] Figure 4 This is a perspective view of the spring rod in this utility model.

[0020] Figure 5 This is a perspective view of the first spiral blade in this utility model.

[0021] Legend: 1. Centrifuge base; 11. Motor; 12. Transport base; 13. Transport cover; 14. Receiving pad; 15. Dispersion pad; 16. Transfer pad; 17. Floor; 2. Positioning column; 21. Threaded column; 22. Internal threaded cylinder; 3. Connecting rod; 4. Rotating roller; 41. First spiral blade; 42. Second spiral blade; 43. Third spiral blade; 5. Fixed rod; 51. Spring rod; 6. Counterweight. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Specific implementation examples are given below.

[0024] Please see Figure 1 , Figure 2 , Figure 5 This utility model provides a horizontal spiral sedimentation centrifuge spiral structure, including a centrifuge base 1; characterized in that: a motor 11 and a transport bottom shell 12 are provided at the end of the centrifuge base 1; a transport cover shell 13 is hinged to the top of the transport bottom shell 12; a receiving pad 14 is provided at the bottom of the centrifuge base 1; multiple sets of dispersion pads 15 are fixedly connected to the bottom of the receiving pad 14; a transmission pad 16 is fixedly connected to the bottom of the dispersion pads 15; a floor 17 is fixedly connected to the bottom of the transmission pads 16; an adjustable support column mechanism is provided between the receiving pad 14 and the floor 17; the bottommost transmission pad 16 is made of high-damping rubber material to absorb low-frequency vibrations; the middle layer of dispersion pads 15 is honeycomb-shaped. The metal structure disperses vibration energy; the upper receiving pad 14 is an elastic composite material adapted to the centrifuge base 1. First, the bottom transmission pad 16 uses high-damping rubber material to absorb low-frequency vibrations. The middle layer dispersion pad 15 is a honeycomb metal structure that disperses vibration energy. The upper receiving pad 14 is an elastic composite material adapted to the centrifuge base 1. At the same time, the adjustable support column can adjust the height according to the equipment load and operating status to ensure that the centrifuge is installed horizontally, further reducing vibration transmission. The flexible vibration-damping composite base can reduce vibration transmission. By absorbing and dispersing vibration energy through multiple layers of materials, the impact and friction between components are reduced, and the replacement cycle of vulnerable parts such as bearings and seals is extended.

[0025] Furthermore, such as Figure 1 , Figure 3As shown, the adjustable support column mechanism includes a positioning column 2 that runs through the middle of the floor 17 and the transmission pad 16; a threaded column 21 is provided at the end of the positioning column 2; an internal threaded cylinder 22 is rotatably connected to the side wall of the threaded column 21; the internal threaded cylinder 22 is fixedly connected to the receiving pad 14; by rotating the internal threaded cylinder 22 to make it rotate with the threaded column 21, the height can be adjusted. Through the adjustable support column, the height can be adjusted according to the equipment load and operating status to ensure that the centrifuge is installed horizontally and further reduce vibration transmission.

[0026] Furthermore, such as Figure 4 As shown, the dispersion pad 15 is symmetrically provided with connecting rods 3 on its sidewalls; a buffer mechanism is provided between the connecting rods 3; by adjusting the position of the dispersion pad 15 when it is subjected to pressure through the connecting rods 3 and the buffer mechanism, the energy dispersion of the dispersion pad 15 can be improved, thereby reducing the vibration transmission effect.

[0027] Furthermore, such as Figure 5 As shown, the output end of the motor 11 is provided with a rotating roller 4; the rotating roller 4 is located inside the transport base shell 12; a first spiral blade 41, a second spiral blade 42, and a third spiral blade 43 are fixedly connected to the side wall of the rotating roller 4; the pitches of the first spiral blade 41, the second spiral blade 42, and the third spiral blade 43 are all different; firstly, the first spiral blade 41 has a large pitch, the second spiral blade 42 has a medium pitch, and the third spiral blade 43 has a small pitch. The first spiral blade 41 is used to quickly transport materials at the centrifuge feed end to accelerate the initial separation of solid and liquid, the second spiral blade 42 is used in the middle to achieve uniform transport, and the third spiral blade 43 is used at the discharge end to extend the solid phase residence time and improve the extrusion dehydration effect.

[0028] Furthermore, such as Figure 4 As shown, the buffer mechanism includes a fixed rod 5 disposed between the connecting rods 3; a spring rod 51 is fixedly connected to the side wall of the fixed rod 5; the spring rod 51 is fixedly connected to the connecting rod 3; through the elastic buffering effect of the spring rod 51 and the setting of its position, the force restriction effect is achieved, thereby improving the energy dispersion of the dispersion pad 15.

[0029] Furthermore, such as Figure 5 As shown, the inner wall of the transport base 12 is provided with multiple sets of counterweights 6; when the equipment vibrates during operation, the counterweights 6 are used to achieve dynamic balance, reduce vibration and noise caused by imbalance, and improve equipment stability.

[0030] Furthermore, such as Figure 5As shown, the counterweights 6 are positioned differently within the ranges of the first spiral blade 41, the second spiral blade 42, and the third spiral blade 43. By setting counterweights 6 at different positions within the ranges of the first spiral blade 41, the second spiral blade 42, and the third spiral blade 43 according to their respective spiral widths, the dynamic balance effect in different areas can be improved, thereby enhancing the stability of the equipment.

[0031] Working principle: First, the bottom transmission pad 16 uses high-damping rubber material to absorb low-frequency vibrations. The middle layer dispersion pad 15 is a honeycomb metal structure that disperses vibration energy. The upper receiving pad 14 is an elastic composite material adapted to the centrifuge base 1. Simultaneously, the adjustable support column can adjust the height according to the equipment load and operating status, ensuring the centrifuge is installed horizontally and further reducing vibration transmission. By rotating the internal threaded cylinder 22 to make it rotate with the threaded column 21, the height can be adjusted. The connecting rod 3 and buffer mechanism limit the position of the dispersion pad 15 when it is under pressure, improving the energy dispersion of the dispersion pad 15. Firstly, the first spiral blade 41 has a large pitch... The second spiral blade 42 has a medium pitch, and the third spiral blade 43 has a small pitch. The first spiral blade 41 is used to quickly convey materials at the feed end of the centrifuge, accelerating the initial separation of solid and liquid. The second spiral blade 42 is used in the middle to achieve uniform conveying. The third spiral blade 43 is used at the discharge end. The elastic buffering effect of the spring rod 51 and the setting of its position play a role in limiting the force. When the equipment vibrates during operation, the counterweight 6 is set to achieve dynamic balance, reducing the vibration and noise caused by imbalance. By setting the counterweight 6 at different positions within the range of the first spiral blade 41, the second spiral blade 42 and the third spiral blade 43 according to their respective spiral widths, the dynamic balance effect in different areas can be improved.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A spiral structure for a horizontal spiral sedimentation centrifuge, comprising a centrifuge base (1); characterized in that: The centrifuge base (1) is provided with a motor (11) and a transport bottom shell (12) at one end; the transport bottom shell (12) is hinged to a transport cover shell (13) at the top; the centrifuge base (1) is provided with a receiving pad (14) at the bottom; multiple sets of dispersion pads (15) are fixed to the bottom of the receiving pad (14); a transmission pad (16) is fixed to the bottom of the dispersion pad (15); a floor (17) is fixed to the bottom of the transmission pad (16); an adjustable support column mechanism is provided between the receiving pad (14) and the floor (17); the bottom layer of the transmission pad (16) is made of high-damping rubber material to absorb low-frequency vibration; the middle layer of the dispersion pads (15) is a honeycomb metal structure to disperse vibration energy; the top layer of the receiving pad (14) is an elastic composite material adapted to the centrifuge base (1).

2. The spiral structure of a horizontal spiral sedimentation centrifuge as described in claim 1, characterized in that: The adjustable support column mechanism includes a positioning column (2) that runs through the middle of the floor (17) and the transmission pad (16); a threaded column (21) is provided at the end of the positioning column (2); an internal threaded cylinder (22) is rotatably connected to the side wall of the threaded column (21); the internal threaded cylinder (22) is fixedly connected to the receiving pad (14).

3. The spiral structure of a horizontal spiral sedimentation centrifuge as described in claim 1, characterized in that: The sidewalls of the dispersion pad (15) are symmetrically provided with connecting rods (3); a buffer mechanism is provided between the connecting rods (3).

4. The spiral structure of a horizontal spiral sedimentation centrifuge as described in claim 1, characterized in that: The output end of the motor (11) is provided with a rotating roller (4); the rotating roller (4) is located inside the transport base shell (12); a first spiral blade (41), a second spiral blade (42) and a third spiral blade (43) are fixedly connected to the side wall of the rotating roller (4); the pitches of the first spiral blade (41), the second spiral blade (42) and the third spiral blade (43) are different.

5. The spiral structure of a horizontal spiral sedimentation centrifuge as described in claim 3, characterized in that: The buffer mechanism includes a fixed rod (5) disposed between the connecting rods (3); a spring rod (51) is fixedly connected to the side wall of the fixed rod (5); the spring rod (51) and the connecting rod (3) are fixedly connected.

6. The spiral structure of a horizontal spiral sedimentation centrifuge as described in claim 4, characterized in that: The inner wall of the transport base (12) is provided with multiple sets of counterweights (6).

7. The spiral structure of a horizontal spiral sedimentation centrifuge as described in claim 6, characterized in that: The positions of the counterweights (6) within the range of the first spiral blade (41), the second spiral blade (42), and the third spiral blade (43) are different.

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