A rotary separation device for sludge treatment

Abstract

This utility model discloses a rotary separation device for sludge treatment, including a drainage cylinder, a centrifugal filter cylinder, and a driving component. The inner wall of the drainage cylinder is provided with an annular groove, which includes multiple alternating arc-shaped crests and troughs. Connecting rods are provided on both sides of the centrifugal filter cylinder, with the ends of two connecting rods movably installed within the annular groove and simultaneously located within either the arc-shaped crest or trough. The output end of the driving component is retractably connected to the centrifugal filter cylinder to drive its rotation. Through the above-described design, this utility model effectively improves the solid-liquid separation effect of sludge.

Description

Technical Field

[0001] This utility model relates to the field of sludge treatment, and in particular to a rotary separation device for sludge treatment. Background Technology

[0002] With the acceleration of urbanization and the expansion of industrial production, the amount of sludge generated during municipal sewage treatment and industrial wastewater treatment is increasing year by year. Sludge has a complex composition, containing not only a large amount of water, but also suspended particles, organic matter, and potential pollutants. If not properly treated, it can easily cause secondary pollution. Therefore, the reduction and harmless treatment of sludge has become one of the core needs in the field of environmental protection.

[0003] In sludge treatment technology, centrifugal separation is widely used in sludge dewatering and solid-liquid separation due to its advantages such as high separation efficiency, small footprint, and large processing capacity. Its core principle is to drive a centrifugal filter cartridge to rotate at high speed, using centrifugal force to throw water from the sludge to the outer drainage structure, thus separating solid sludge from water. However, existing rotary separation devices for sludge treatment mostly use a fixed-height rotating structure, with a fixed relative position to the inner wall of the drainage cylinder and a single rotation trajectory. When sludge enters the filter cartridge, due to the characteristics of centrifugal force distribution, sludge near the cylinder wall is prone to over-separation and drying, while sludge in the central area of ​​the cylinder may not be sufficiently dewatered due to insufficient centrifugal force. Ultimately, this results in uneven overall separation, large fluctuations in moisture content, and increased subsequent treatment costs.

[0004] Therefore, a rotary separation device for sludge treatment is needed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a rotary separation device for sludge treatment, so as to improve the solid-liquid separation effect of sludge.

[0006] To solve the above-mentioned technical problems, this utility model provides a sludge treatment rotary separation device, including a drainage cylinder, a centrifugal filter cylinder and a driving component; The inner wall of the drainage cylinder is provided with an annular groove, which includes multiple alternating arc-shaped crest segments and arc-shaped trough segments; The centrifugal filter cylinder is provided with connecting rods on both sides. The ends of the two connecting rods that are far apart from each other are movably installed in the annular groove and are simultaneously located in the arc-shaped crest section or the arc-shaped trough section. The output end of the drive unit is retractably connected to the centrifugal filter cylinder to drive the centrifugal filter cylinder to rotate.

[0007] Furthermore, the driving component includes a drive motor and a telescopic linkage; The drive motor is located at the bottom of the drain cylinder, and its output end is connected to the centrifugal filter cylinder via the telescopic connecting rod.

[0008] Furthermore, the bottom of the drain cylinder has a frustum base, and a gap is reserved between the frustum base and the centrifugal filter cylinder; The telescopic connecting rod passes through the frustum base and is connected to the centrifugal filter cylinder.

[0009] Furthermore, this also includes the top cover plate; The top cover is detachably and fixedly installed on the top of the drainage cylinder.

[0010] Furthermore, a plurality of cleaning rollers capable of extending into the interior of the centrifugal filter cartridge are rotatably mounted on the lower surface of the top cover plate. When the top cover plate is connected to the drain cylinder, the cleaning roller is in contact with the filter holes on the inner wall of the centrifugal filter cylinder.

[0011] Furthermore, an annular toothed ring is provided on the inner wall of the top end of the centrifugal filter cartridge; The outer wall of the cleaning roller is fixedly fitted with a gear that meshes with the annular gear ring.

[0012] Furthermore, when the centrifugal filter cartridge rotates and rises, the gear and the annular gear ring are always engaged.

[0013] Furthermore, the ends of the two connecting rods that connect to the annular groove are configured as spherical structures.

[0014] Furthermore, a drain outlet is provided on one side of the outer wall of the drain cylinder.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: By setting an annular groove with multiple alternating arc-shaped crests and troughs on the inner wall of the drainage cylinder, and connecting rods movably installed on both sides of the centrifugal filter cylinder at the annular grooves and simultaneously located at the crests or troughs, and cooperating with the drive component to extendably connect to the centrifugal filter cylinder and drive its rotation, the connecting rods can move alternately along the crests and troughs of the annular grooves while the centrifugal filter cylinder rotates under the drive component during operation. This allows the centrifugal filter cylinder to rotate while also oscillating up and down, thereby allowing the sludge to flow longitudinally synchronously with the oscillation of the centrifugal filter cylinder. This prevents the sludge from accumulating statically in the central area of ​​the centrifugal filter cylinder for a long time, thereby improving the overall uniformity of sludge solid-liquid separation, reducing the fluctuation range of sludge moisture content after separation, and achieving the purpose of improving the sludge solid-liquid separation effect. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of a sludge treatment rotary separation device in one embodiment of the present invention; Figure 2 This is a schematic diagram of the centrifugal filter cylinder in a sludge treatment rotary separation device according to one embodiment of the present invention.

[0017] Reference numerals: 1. Drainage cylinder; 2. Centrifugal filter cylinder; 21. Annular gear ring; 3. Drive component; 31. Drive motor; 32. Telescopic connecting rod; 4. Annular groove; 5. Connecting rod; 6. Frustum base; 7. Top cover plate; 71. Cleaning roller; 72. Gear. Detailed Implementation

[0018] The sludge treatment rotary separation device of this utility model will now be described in more detail with reference to the schematic diagrams, which illustrate preferred embodiments of this utility model. It should be understood that those skilled in the art can modify the utility model described herein while still achieving its advantageous effects. Therefore, the following description should be understood as being of general knowledge to those skilled in the art and is not intended to limit the utility model.

[0019] Furthermore, based on the teachings of this specification, those skilled in the art can form new technical solutions through cross-combination of different implementation methods without creating technical contradictions. Such variations should all be considered to fall within the protection scope of this patent.

[0020] The present invention will be described in more detail below by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0021] like Figure 1 and Figure 2 As shown in the figure, this utility model embodiment proposes a sludge treatment rotary separation device, including a drainage cylinder 1, a centrifugal filter cylinder 2, and a driving component 3.

[0022] The inner wall of the drainage cylinder 1 is provided with an annular groove 4, which includes multiple alternating arc-shaped peak segments and arc-shaped trough segments.

[0023] Connecting rods 5 are provided on both sides of the centrifugal filter cylinder 2. The ends of the two connecting rods 5 that are far apart from each other are movably installed in the annular groove 4 and are simultaneously located in the arc-shaped crest or trough section. That is, the two connecting rods 5 are always at the same height when moving, thereby ensuring that the centrifugal filter cylinder 2 is in a horizontal state and ensuring the stability of the subsequent driving component 3.

[0024] The output end of the drive component 3 is retractably connected to the centrifugal filter cylinder 2 to drive the centrifugal filter cylinder 2 to rotate. By making the output end of the drive component 3 retractably connected to the centrifugal filter cylinder 2, motion compensation is provided in the height direction, so that when the drive component 3 drives the centrifugal filter cylinder 2 to rotate, it can synchronously adapt to the height change of the centrifugal filter cylinder 2 caused by the movement of the connecting rod 5 along the annular groove 4 (such as the arc-shaped crest section and the arc-shaped trough section).

[0025] Specifically, when the centrifugal filter cylinder 2 slides to the crest of the annular groove 4 along with the connecting rod 5, the output end of the drive component 3 can extend accordingly to avoid pulling and restricting the upward movement of the centrifugal filter cylinder 2; while when the centrifugal filter cylinder 2 slides to the trough of the annular groove 4 along with the connecting rod 5, the output end of the drive component 3 can retract accordingly to prevent redundant accumulation or compression deformation of the output end due to the descent of the centrifugal filter cylinder 2.

[0026] Furthermore, through dynamic motion compensation in the height direction, it ensures that the rotational power of the drive component 3 to the centrifugal filter cartridge 2 is continuously and stably transmitted, preventing power interruption or jamming due to the up-and-down fluctuations of the centrifugal filter cartridge 2. It also avoids component wear caused by the height displacement conflict between the output end of the drive component 3 and the centrifugal filter cartridge 2 under rigid connection, thus extending the service life of both the drive component 3 and the centrifugal filter cartridge 2. Simultaneously, it allows the centrifugal filter cartridge 2 to smoothly complete up-and-down fluctuations while rotating, thereby driving the sludge inside the centrifugal filter cartridge 2 to generate longitudinal flow. This breaks the tendency for sludge to accumulate in localized areas during traditional fixed-height rotation, thereby improving the solid-liquid separation effect of the sludge.

[0027] The drainage cylinder 1 has a drainage outlet on one side of its outer wall for discharging sewage.

[0028] In this embodiment, a specific drive component 3 is also proposed to improve the rotation control effect of the centrifugal filter cartridge 2.

[0029] Specifically, the driving component 3 includes a drive motor 31 and a telescopic link 32.

[0030] The drive motor 31 is located at the bottom of the drainage cylinder 1, and its output end is connected to the centrifugal filter cylinder 2 through the telescopic connecting rod 32.

[0031] In other embodiments, to prevent sewage from interfering with the telescopic connecting rod 32 during separation and thus affecting the service life of the device, the drainage cylinder 1 is further defined.

[0032] Specifically, the bottom of the drain cylinder 1 has a frustum base 6, and a gap is reserved between the frustum base 6 and the centrifugal filter cylinder 2 to prevent interference between the centrifugal filter cylinder 2 and the frustum base 6 when the centrifugal filter cylinder 2 vibrates in the vertical direction.

[0033] The telescopic connecting rod 32 passes through the frustum base 6 and is connected to the centrifugal filter cylinder 2. The frustum base 6 effectively protects the telescopic connecting rod 32 from corrosion by sewage.

[0034] In a further embodiment, the sludge treatment rotary separation device also includes a top cover plate 7.

[0035] The top cover plate 7 is detachably fixedly installed on the top of the drainage cylinder 1.

[0036] Specifically, the top cover plate 7 and the drain cylinder 1 are detachably connected by a snap fastener (not shown in the figure) and can be separated from each other in the vertical direction.

[0037] The lower surface of the top cover plate 7 is rotatably equipped with a plurality of cleaning rollers 71 that can extend into the interior of the centrifugal filter cylinder 2.

[0038] When the top cover plate 7 is connected to the drain cylinder 1, the cleaning roller 71 is in contact with the filter holes on the inner wall of the centrifugal filter cylinder 2 to clean the filter holes of the centrifugal filter cylinder 2 and prevent poor separation effect due to filter hole blockage.

[0039] In other embodiments, an annular toothed ring 21 and a gear 72 are added between the centrifugal filter cylinder 2 and the cleaning roller 71 so that the cleaning roller 71 can rotate when the centrifugal filter cylinder 2 rotates, thereby further improving the cleaning effect of the cleaning roller 71 on the filter holes.

[0040] Specifically, the centrifugal filter cylinder 2 has an annular toothed ring 21 on its inner top wall, and the cleaning roller 71 has a gear 72 fixedly installed on its outer wall that meshes with the annular toothed ring 21.

[0041] It should be noted that when the centrifugal filter cylinder 2 rotates and rises, the gear 72 and the annular gear ring 21 are always engaged. That is, the thickness of the annular gear ring 21 is greater than the vertical distance between the highest point of the arc-shaped peak section and the lowest point of the arc-shaped trough section. This ensures that when the centrifugal filter cylinder 2 oscillates in the vertical direction, the annular gear ring 21 can always drive the gear 72 to rotate, thereby driving the cleaning roller 71 to rotate to clean the filter holes.

[0042] In other embodiments, the connection between the connecting rod 5 and the annular groove 4 is further defined. Specifically, one end of the two connecting rods 5 connected to the annular groove 4 is set as a spherical structure to reduce frictional resistance.

[0043] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A sludge management rotating separation device, characterized by, Includes a drain cylinder, a centrifugal filter cylinder, and a drive unit; The inner wall of the drainage cylinder is provided with an annular groove, which includes multiple alternating arc-shaped crest segments and arc-shaped trough segments; The centrifugal filter cylinder is provided with connecting rods on both sides. The ends of the two connecting rods that are far apart from each other are movably installed in the annular groove and are simultaneously located in the arc-shaped crest section or the arc-shaped trough section. The output end of the drive unit is retractably connected to the centrifugal filter cylinder to drive the centrifugal filter cylinder to rotate.

2. The sludge treatment and disposal rotating separating device as claimed in claim 1, wherein, The driving component includes a drive motor and a telescopic linkage; The drive motor is located at the bottom of the drain cylinder, and its output end is connected to the centrifugal filter cylinder via the telescopic connecting rod.

3. The sludge management rotating separation device of claim 2, wherein, The bottom of the drain cylinder has a frustum base, and a gap is reserved between the frustum base and the centrifugal filter cylinder. The telescopic connecting rod passes through the frustum base and is connected to the centrifugal filter cylinder.

4. The sludge treatment and disposal rotating separating device as claimed in claim 1, wherein It also includes the top cover plate; The top cover is detachably and fixedly installed on the top of the drainage cylinder.

5. The sludge management rotating separation device of claim 4, wherein, The lower surface of the top cover plate is rotatably mounted with a plurality of cleaning rollers that can extend into the interior of the centrifugal filter cartridge; When the top cover plate is connected to the drain cylinder, the cleaning roller is in contact with the filter holes on the inner wall of the centrifugal filter cylinder.

6. The sludge management rotating separation device of claim 5, wherein, The centrifugal filter cylinder has an annular toothed ring on its top inner wall. The outer wall of the cleaning roller is fixedly fitted with a gear that meshes with the annular gear ring.

7. The sludge management rotating separation device of claim 6, wherein, When the centrifugal filter cartridge rotates and rises, the gear and the annular gear ring are always engaged.

8. The sludge management rotating separation device of claim 1, wherein, The ends of the two connecting rods that connect to the annular groove are configured as spherical structures.

9. The sludge management rotating separation device of claim 1, wherein, A drain outlet is provided on one side of the outer wall of the drain cylinder.

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