An automatic sludge scraping device applied to the bottom of a centrifuge

Abstract

This utility model discloses an automatic sludge scraping device for the bottom of a centrifuge, comprising a first housing, a second housing mounted on one end of the first housing, a through groove at the connection between the second housing and the first housing, an adjustable gate plate inside the second housing, a support plate mounted on the other end of the first housing, and support seats equidistantly mounted on the top of the support plate. This utility model uses another set of driving devices to drive the active rod to rotate, which in turn drives the driven sleeve rod to rotate via a rack. This allows control of the adjustment rod's movement within the driven sleeve rod, thereby controlling the position of the cleaning plate at the top of the gate plate. A universal joint provides adjustment functionality for the cleaning plate relative to the adjustment rod, ensuring that the cleaning plate remains perpendicular to the gate plate and effectively removes sludge during prolonged use.

Description

Technical Field

[0001] This utility model relates to the field of sludge scraping technology, specifically an automatic sludge scraping device applied to the bottom of a centrifuge. Background Technology

[0002] For large and medium-sized water plants, centrifuge operation is an essential part of the water treatment process. The functional parameters and structural design of the centrifuges are constantly adjusted and improved based on the actual production conditions. Currently, multiple centrifuges in the water plant use the same outlet for both sludge and water. Before or after startup, a period of time is allocated for automatic internal cleaning of the centrifuges. There are two pipe openings at the bottom of the sludge and water outlets. The first is the sludge outlet, where sludge falls vertically during normal sludge discharge. The sludge and water generated during the cleaning process flows into the second pipe opening, so a horizontal gate is used in the middle for automatic selection.

[0003] During daily operation, the gate surface is prone to accumulating bottom mud when switching back and forth. Although there is a cleaning effect for some time and the gate surface is washed away, the mud is often not cleaned properly due to its high viscosity or large size. Especially in winter, after the centrifuge stops running, the mud may harden. When the centrifuge is used again or after operation ends, the motor driven by the gate may malfunction due to overload, requiring manual cleaning of the mud layer and resetting of the motor on site.

[0004] Therefore, it is necessary to provide an automatic sludge scraping device for the bottom of a centrifuge to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to provide an automatic sludge scraping device for the bottom of a centrifuge to solve the problems existing in the background technology. The technical solution of this utility model provides a solution that is significantly different from the existing technology, which is aimed at the problem that the existing technical solutions are too simple.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic sludge scraping device for the bottom of a centrifuge, comprising a first housing, a second housing installed at one end of the first housing, a through groove at the connection between the second housing and the first housing, a movable gate plate inside the second housing, a support plate installed at the other end of the first housing, and support seats equidistantly installed on the top of the support plate, the top of the support seats supporting a cleaning mechanism for cleaning the sludge on the top of the gate plate.

[0007] Preferably, the two opposite sides of the inner side of the second housing are provided with limiting grooves for guiding the gate, the limiting grooves extend to the inner side of the first housing, the bottom of the gate is provided with a toothed plate, the bottom of the inner side of the second housing is provided with a long groove and a rotating rod is rotatably connected thereto, and a gear that meshes with the toothed plate is installed on the rotating rod.

[0008] Preferably, a support groove communicating with the limiting groove is also provided on one end of the inner side of the first housing.

[0009] Preferably, the cleaning mechanism includes a fixed seat mounted on the top of the support base, a connecting seat mounted on the end of the fixed seat away from the second housing, a drive rod rotatably mounted on the inner side of the connecting seat, a driven sleeve rod rotatably mounted on the inner side of the fixed seat, the outer wall of the drive rod and the driven sleeve rod being connected by a transmission belt, an adjusting rod being threaded on the inner side of the driven sleeve rod, and a cleaning plate for scraping sludge off the gate plate being mounted on the other end of the adjusting rod.

[0010] Preferably, the end of the adjusting rod facing the cleaning plate has a slot, and a universal joint is installed inside the slot, which is connected to the cleaning plate.

[0011] Preferably, a receiving groove for accommodating a cleaning plate is provided at one end of the inner side of the first housing, and the receiving groove is connected to the support groove.

[0012] Preferably, the bottom of the inner side of the second housing is inclined, and the mud and water channel is located on the lower side.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This utility model uses a driving device to drive a rotating rod to rotate, which in turn controls the gear to move the toothed plate, thereby moving the gate plate left and right to control the flow direction of mud and sludge. When the gate plate is inside the first housing, mud and water can be introduced into the second housing and discharged through the mud and water channel. When the gate plate is inside the second housing, sludge can be controlled to be introduced into the bottom of the first housing and discharged through the sludge channel. This invention uses another set of driving devices to drive the active rod to rotate, which in turn drives the driven sleeve rod to rotate through the set rack. At this time, the adjusting rod can be controlled to move inside the driven sleeve rod, thereby controlling the position of the cleaning plate at the top of the gate. The set universal joint allows the cleaning plate to have a certain adjustment function relative to the adjusting rod, ensuring that during long-term use, the cleaning plate can always remain perpendicular to the gate and achieve an effective mud removal effect. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model; Figure 2 This is a sectional perspective view of the connection between the first housing and the second housing of this utility model; Figure 3 This is a front view structural diagram of the present utility model; Figure 4 This utility model Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the internal structure of the fixing seat and connecting seat of this utility model.

[0015] In the diagram: 1. First housing; 2. Second housing; 3. Through groove; 4. Gate; 5. Support plate; 6. Support seat; 7. Cleaning mechanism; 701. Fixed seat; 702. Connecting seat; 703. Driving rod; 704. Driven sleeve rod; 705. Transmission belt; 706. Adjusting rod; 707. Cleaning plate; 8. Limiting groove; 9. Gear plate; 10. Rotating rod; 11. Gear; 12. Support groove; 13. Slot; 14. Universal joint; 15. Receiving groove. Detailed Implementation

[0016] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0018] Please see Figure 1-5An automatic sludge scraping device for the bottom of a centrifuge includes a first housing 1, a second housing 2 installed at one end of the first housing 1, a through groove 3 for a gate 4 and a cleaning mechanism 7 to pass through at the connection between the second housing 2 and the first housing 1, a movable gate 4 is provided inside the second housing 2, a support plate 5 is installed at the other end of the first housing 1, support seats 6 are equidistantly installed on the top of the support plate 5, and a cleaning mechanism 7 for cleaning the sludge on the top of the gate 4 is supported on the top of the support seats 6.

[0019] like Figure 1-5 As shown, the front and rear ends of the inner side of the second housing 2 are provided with limiting grooves 8 extending to the inner side of the first housing 1. A gate 4 is adapted to be installed between the two limiting grooves 8, and the gate 4 can move along the length direction of the limiting groove 8. A toothed plate 9 is installed at the bottom center of the gate 4 in its length direction. A long groove is provided on the inner side of the second housing 2 and a rotating rod 10 is rotatably connected to it. A gear 11 that meshes with the toothed plate 9 is installed at the center of the outer wall of the rotating rod 10. A drive device (such as a forward and reverse motor) is installed on the outer side of the second housing 2 to drive the rotating rod 10 to rotate. By driving the rotating rod 10 to rotate through the drive device, the gear 11 can drive the toothed plate 9 to move, thereby driving the gate 4 to move left and right, controlling the flow direction of mud and sludge. When the gate 4 is located inside the first housing 1 and intercepts its inner cavity, mud and water can be introduced into the second housing 2 and discharged through the mud and water channel. When the gate 4 is located inside the second housing 2, sludge can be controlled to be introduced into the bottom of the first housing 1 and discharged through the sludge channel.

[0020] like Figure 1-5 As shown, a support groove 12 communicating with the limiting groove 8 is also provided on one end of the inner side of the first housing 1. The support groove 12 can support the gate 4 that moves into the first housing 1, thereby improving the support capacity of the gate 4.

[0021] like Figure 1-5As shown, the cleaning mechanism 7 includes a fixed base 701 mounted on the top of the support base 6. A connecting base 702 is mounted at the end of the fixed base 701 away from the second housing 2. An active rod 703 with toothed blocks on its outer wall is rotatably mounted inside the connecting base 702. Another driving device (e.g., a forward and reverse motor) for driving the active rod 703 to rotate is mounted on the outside of the connecting base 702. A driven sleeve rod 704 with toothed blocks on its outer wall is rotatably mounted inside the fixed base 701. The active rod 703 and the driven sleeve rod 704 are connected by teeth on their outer walls. The drive belt 705 is connected to the driven sleeve 704. An adjusting rod 706 is installed inside the driven sleeve 704. A cleaning plate 707 for moving along the upper surface of the gate 4 is installed at the other end of the adjusting rod 706. The driving rod 703 can be rotated by another driving device, which in turn drives the driven sleeve 704 to rotate through the drive belt 705. At this time, the adjusting rod 706 can be controlled to extend and retract inside the driven sleeve 704, which in turn controls the cleaning plate 707 to move along the top surface of the gate 4 to achieve the effect of scraping off sludge.

[0022] like Figure 1-5 As shown, the end of the adjusting rod 706 facing the cleaning plate 707 has a slot 13. A universal shaft 14 is installed inside the slot 13. The universal shaft 14 is connected to the cleaning plate 707. The universal shaft 14 enables the cleaning plate 707 to have a certain adjustment function relative to the adjusting rod 706, ensuring that the cleaning plate 707 remains perpendicular to the gate 4 during long-term use, thereby maintaining an effective mud removal effect.

[0023] like Figure 1-5 As shown, a receiving groove 15 for accommodating the cleaning plate 707 is provided at one end of the inner side of the first housing 1, and the receiving groove 15 is connected to the support groove 12. The receiving groove 15 can accommodate the cleaning plate 707, thus avoiding affecting normal operation during the introduction of sludge.

[0024] Working principle: When in use, the rotating rod 10 is driven to rotate by the driving device, which controls the gear 11 to drive the toothed plate 9 to move, thereby driving the gate 4 to move left and right, controlling the flow direction of mud and water and sludge. When the gate 4 is inside the first housing 1, the mud and water can be introduced into the second housing 2 and discharged through the mud and water channel. When the gate 4 is inside the second housing 2, the sludge can be controlled to be introduced into the bottom of the first housing 1 and discharged through the sludge channel.

[0025] When sludge scraping is required, another set of drive devices can rotate the drive rod 703, which in turn drives the driven sleeve rod 704 to rotate via the transmission belt 705. At this time, the adjusting rod 706 can be controlled to extend and retract within the driven sleeve rod 704, thereby causing the cleaning plate 707 to move horizontally against the top surface of the gate plate 4, thus scraping off the sludge adhering to the top surface of the gate plate 4. The universal joint 14 provides a certain degree of adjustment for the cleaning plate 707 relative to the adjusting rod 706, ensuring that the cleaning plate 707 remains perpendicular to the gate plate 4 during long-term use, thus maintaining an effective sludge removal effect.

[0026] In another embodiment, the end face of the long groove inside the second housing 2 is inclined in the front-to-back direction, and the mud and water channel is located on the lower side. The bottom of the through groove 3, the bottom of the support groove 12 and the gate 4 are all adapted to be inclined so that when mud and water are discharged, the mud and water are driven to gather and be discharged to the lower side.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An automatic sludge scraping device for the bottom of a centrifuge, comprising a first housing (1), characterized in that: A second housing (2) is installed at one end of the first housing (1). A through groove (3) is provided at the connection between the second housing (2) and the first housing (1). A movable gate (4) is provided inside the second housing (2). A support plate (5) is installed at the other end of the first housing (1). A support seat (6) is installed at equal intervals on the top of the support plate (5). A cleaning mechanism (7) that can clean the mud on the top of the gate (4) is supported on the top of the support seat (6).

2. The automatic sludge scraping device applied to the bottom of a centrifuge according to claim 1, characterized in that: The second housing (2) has two opposite sides of the inner side with limiting grooves (8) for guiding the gate (4). The limiting grooves (8) extend to the inner side of the first housing (1). The bottom of the gate (4) is equipped with a toothed plate (9). The bottom of the inner side of the second housing (2) has a long groove and a rotating rod (10) is rotatably connected. The rotating rod (10) is equipped with a gear (11) that meshes with the toothed plate (9).

3. An automatic sludge scraping device applied to the bottom of a centrifuge according to claim 2, characterized in that: The inner end of the first housing (1) is also provided with a support groove (12) that communicates with the limiting groove (8).

4. An automatic sludge scraping device applied to the bottom of a centrifuge according to claim 1, characterized in that: The cleaning mechanism (7) includes a fixed seat (701) installed on the top of the support seat (6). A connecting seat (702) is installed at one end of the fixed seat (701) away from the second housing (2). An active rod (703) is rotatably installed on the inner side of the connecting seat (702). A driven sleeve rod (704) is rotatably installed on the inner side of the fixed seat (701). The active rod (703) and the outer wall of the driven sleeve rod (704) are connected by a transmission belt (705). An adjusting rod (706) is installed on the internal thread of the driven sleeve rod (704). A cleaning plate (707) for scraping sludge off the gate (4) is installed at the other end of the adjusting rod (706).

5. An automatic sludge scraping device applied to the bottom of a centrifuge according to claim 4, characterized in that: The adjusting rod (706) has a slot (13) at one end facing the cleaning plate (707), and a universal joint (14) is installed inside the slot (13), which is connected to the cleaning plate (707).

6. An automatic sludge scraping device applied to the bottom of a centrifuge according to claim 5, characterized in that: The first housing (1) has an inner end with a receiving groove (15) for accommodating the cleaning plate (707), and the receiving groove (15) is connected to the support groove (12).

7. An automatic sludge scraping device applied to the bottom of a centrifuge according to claim 1, characterized in that: The bottom of the inner side of the second housing (2) is inclined, and the mud and water channel is located on the lower side.

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