Sludge tank capable of being automatically cleaned

Abstract

A sludge tank capable of being automatically cleaned comprises a sludge tank body, a feeding port is formed in a top plate at the top of the sludge tank body, an inverted-cone-shaped discharging hopper is formed in the bottom of the sludge tank body, the inner wall of the cylindrical part of the sludge tank body is a first cleaning area, and the inner wall of the inverted-cone-shaped part of the sludge tank body is a second cleaning area. A first scraping device for treating sludge on the first cleaning area and a second scraping device for treating sludge on the second cleaning area are arranged in the sludge tank body. The device solves the problems of wall hanging and sludge deposition of the sludge tank body, guarantees the safety of maintenance personnel, prevents safety accidents, and is simple and easy to operate.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of sludge cleaning, particularly to a sludge tank capable of automatic cleaning. BACKGROUND

[0002] At present, in the sewage treatment process, sludge tank will accumulate sludge in the use process, if not regularly cleaning in the sludge tank, it may cause sludge aging, cause the blockage of sludge tank, affect its normal use and the effect of sewage treatment, at the same time, when the sludge tank body appears the phenomenon of sludge accumulation and sludge wall hanging, often need maintenance personnel to clean, due to sewage accumulation fermentation, often produce stench and harmful gas, when maintenance personnel clean sludge at the bottom of pump station tank body, affect the health of maintenance personnel, prone to safety accidents. SUMMARY

[0003] The utility model solves the deficiency of prior art and provides a sludge tank capable of automatic cleaning to solve the problems of sludge wall hanging and sludge accumulation of sludge tank body.

[0004] To achieve the above object, the utility model first proposes a sludge tank capable of automatic cleaning, which comprises a sludge tank body, a top plate on the top of the sludge tank body is provided with a feed inlet, a discharge hopper in the form of an inverted cone is formed at the bottom, the inner wall of the cylindrical part of the sludge tank body is a first cleaning zone, and the inner wall of the inverted conical part is a second cleaning zone, the sludge tank body is provided with a first scraping device for treating sludge in the first cleaning zone and a second scraping device for treating sludge in the second cleaning zone.

[0005] In the embodiment, the first scraping device comprises a plurality of side wall scrapers, a first telescopic connecting rod and a rotating shaft, the rotating shaft is rotatably assembled on the top cover of the sludge tank body, the rotating shaft is driven to rotate by a first motor, the rotating shaft is arranged in the sludge tank body and on the central shaft of the sludge tank body, a plurality of side wall scrapers are arranged in the sludge tank body and uniformly arranged around the rotating shaft, the length of the side wall scraper matches the height of the first cleaning zone, the side wall scraper is connected to the rotating shaft through the first telescopic connecting rod, and a pre-tightening force is applied to the side wall scraper through the first telescopic connecting rod.

[0006] In the embodiment, the side wall scraper and the first telescopic connecting rod are hinged, and the hinge shaft of the side wall scraper and the first telescopic connecting rod is horizontally arranged.

[0007] In the embodiment, the second scraping device comprises a plurality of bottom scrapers and a turnover driving system for controlling the turnover of the bottom scrapers and realizing the conversion of the bottom scrapers between the working state and the storage state, the turnover driving system is installed in the rotating shaft and rotates together with the rotating shaft, the plurality of bottom scrapers are uniformly arranged around the rotating shaft, the bottom scrapers are connected with the turnover driving system through the second telescopic connecting rod, in the working state, the bottom scrapers are in contact with the inner wall of the discharge hopper, and the bottom scrapers are given a pre-tightening force through the second telescopic connecting rod, in the storage state, the turnover driving system drives the bottom scrapers to turn over upward, so that the bottom scrapers are separated from the inner wall of the discharge hopper.

[0008] In the embodiment, the bottom scraper is hinged with the second telescopic connecting rod, and the hinge shaft of the bottom scraper and the second telescopic connecting rod is horizontally arranged.

[0009] In the embodiment, the turnover driving system comprises a transmission shaft which is coaxially and rotatably arranged in the rotating shaft, the transmission shaft is driven to rotate by the second motor, a worm is installed on the transmission shaft, one end of the second telescopic connecting rod is fixed with a horizontal rotating shaft, the second telescopic connecting rod is rotatably arranged in the rotating shaft through the rotating shaft, a worm wheel is fixed on the rotating shaft, and the worm wheel is engaged with the worm.

[0010] In the embodiment, a first control switch for controlling the opening and closing of the first motor and a second control switch for controlling the opening and closing of the second motor are further installed on the top plate of the sludge tank body.

[0011] In the embodiment, a sludge inlet is arranged on the top plate of the sludge tank body, and an energy dissipation plate is further fixed in the sludge tank body and directly below the sludge inlet of the top plate.

[0012] In the embodiment, a flushing pipeline opening is arranged on the top plate of the sludge tank body, and a rotating spray head is installed in the sludge tank body and above the flushing pipeline opening.

[0013] With the above structure, the utility model has the following advantages:

[0014] 1. The device realizes the cooperation of the first scraping device and the second scraping device, the first scraping device and the second scraping device can operate simultaneously, or the first scraping device is controlled to work first, the sludge in the first cleaning area is scraped off, then the second scraping device is controlled to realize the cleaning work of the second cleaning area, in this way, the sludge in the first cleaning area falls into the second cleaning area first, then flows out of the outlet of the discharge hopper along the inclined inner wall of the second cleaning area, after the first cleaning area is cleaned, the second cleaning area is further cleaned, so that the interference of the first cleaning area on the second cleaning area is reduced, the cleaning efficiency is improved, the efficient cleaning of the sludge tank is realized, and the cleaning efficiency and safety are improved.

[0015] 2, the side wall scraper and the first telescopic connecting rod are hinged, the bottom scraper and the second telescopic connecting rod 11 are hinged, so that the side wall scraper and the bottom scraper can adapt to the slope of the inner wall of the sludge tank, and the scraping effect is ensured.

[0016] 3, the energy dissipation plate is used to alleviate the impact on the tank bottom when the sludge is fed, prolong the service life of the tank, and prevent damage to the first scraping device and the second scraping device by feeding; the sludge tank body is flushed by the rotating nozzle while the first scraping device and the second scraping device are working, improving the cleaning effect and the scraping efficiency.

[0017] In summary, the device solves the problems of sludge wall hanging and sludge accumulation in the sludge tank, ensures the safety of maintenance personnel, prevents safety accidents, and is simple and easy to operate. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 Fig. 1 is a structural schematic view of the upper scraper of the utility model.

[0019] Fig. 2 Fig. 2 is a structural schematic view of the lower scraper of the utility model.

[0020] Fig. 3 Fig. 3 is a transmission principle diagram of the utility model.

[0021] In the drawings, 1, sludge tank body; 2, first control switch; 3, second control switch; 4, rotating nozzle; 5, flushing pipeline opening; 6, sludge inlet; 7, energy dissipation plate; 8, side wall scraper; 9, rotating shaft; 10, first telescopic connecting rod; 11, second telescopic connecting rod; 12, bottom scraper; 13, transmission shaft; 14, discharge hopper; 15, worm gear; 16, worm. DETAILED DESCRIPTION

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

[0023] In addition, the technical solutions of each embodiment of the utility model can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it. When the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the utility model.

[0024] For example, Figs. 1 to 3As shown, an automatic cleaning sludge tank, including a sludge tank body 1, the top of the sludge tank body 1 is provided with a feed inlet, the bottom is formed into a conical discharge hopper 14, the inner wall of the cylindrical part of the sludge tank body 1 is a first cleaning area, the inner wall of the conical part is a second cleaning area, the sludge tank body 1 is provided with a first scraping device for treating the sludge on the first cleaning area and a second scraping device for treating the sludge on the second cleaning area;

[0025] The first scraping device includes a plurality of side wall scrapers 8, a first telescopic connecting rod 10 and a rotating shaft 9, the rotating shaft 9 is rotatably assembled on the top cover of the sludge tank body 1, the rotating shaft 9 is driven to rotate by a first motor, the rotating shaft 9 is arranged in the sludge tank body 1 and on the central axis of the sludge tank body 1, a plurality of side wall scrapers 8 are arranged in the sludge tank body 1 and uniformly arranged around the rotating shaft 9, the length of the side wall scraper 8 matches the height of the first cleaning area, the side wall scraper 8 is arranged in parallel with the rotating shaft 9, the side wall scraper 8 is connected with the rotating shaft 9 through the first telescopic connecting rod 10, the side wall scraper 8 is given a pre-tightening force through the first telescopic connecting rod 10, so that the side wall scraper 8 is always pressed against the inner wall of the sludge tank body 1, ensuring that the two are closely attached, when the rotating shaft 9 rotates, the side wall scraper 8 can improve the scraping effect, further, the side wall scraper 8 is hinged with the first telescopic connecting rod 10, the hinge shaft of the side wall scraper 8 and the first telescopic connecting rod 10 is horizontally arranged, so that even if the inner wall of the sludge tank body 1 is not vertical, the side wall scraper 8 can also adapt to the slope of the inner wall of the sludge tank body 1;

[0026] The second scraping device includes a plurality of bottom scrapers 12 and a turnover driving system for controlling the turnover of the bottom scrapers 12 and realizing the conversion of the bottom scrapers 12 between the working state and the storage state, the turnover driving system is installed in the rotating shaft 9 and rotates with the rotating shaft 9, a plurality of bottom scrapers 12 are uniformly arranged around the rotating shaft 9, the bottom scrapers 12 are connected with the turnover driving system through a second telescopic connecting rod 11, the length of the bottom scrapers 12 matches the height of the second cleaning area, in the working state, the bottom scrapers 12 are in contact with the inner wall of the discharge hopper 14, and the bottom scrapers 12 are given a pre-tightening force through the second telescopic connecting rod 11, so that the bottom scrapers 12 are always pressed against the inner wall of the sludge tank body 1, ensuring that the two are closely attached, in the storage state, the turnover driving system drives the bottom scrapers 12 to turn over upward, so that the bottom scrapers 12 are separated from the inner wall of the discharge hopper 14, further, the bottom scrapers 12 are hinged with the second telescopic connecting rod 11, the hinge shaft of the bottom scrapers 12 and the second telescopic connecting rod 11 is horizontally arranged, so that the bottom scrapers 12 can adapt to the slope of the inner wall of the discharge hopper 14;

[0027] As Fig. 3As shown, the turnover drive system includes coaxial rotation shaft 9 in the transmission shaft 13, the transmission shaft 13 is installed on the worm 16, the second end of the telescopic connecting rod 11 is fixed with a horizontal rotating shaft, the second telescopic connecting rod 11 is rotationally arranged in the rotating shaft 9 through the rotating shaft, the rotating shaft is fixed with the worm gear 15, the worm gear 15 is engaged with the worm 16, the transmission shaft 13 is driven to rotate by the second motor, the second motor can drive the worm gear to rotate, thereby driving the second telescopic connecting rod 11 to rotate around the rotating shaft 9 as the center, and the bottom scraper 12 is driven by the second telescopic connecting rod 11 to switch between the working state and the storage state.

[0028] As Fig. 1 As shown, the top plate of the sludge tank body 1 is also provided with a first control switch 2 for controlling the opening and closing of the first motor and a second control switch 3 for controlling the opening and closing of the second motor; the top plate of the sludge tank body 1 is also provided with a sludge inlet 6 and a flushing pipe opening 5, and a damping plate 7 is fixed below the sludge inlet 6 of the top plate in the sludge tank body 1, and a gap is provided between the damping plate 7 and the top plate, the damping plate 7 is used to relieve the impact on the tank bottom when the sludge is fed, prolong the service life of the tank, and prevent damage to the first and second scraping devices; a rotating nozzle 4 is installed in the sludge tank body 1 above the flushing pipe opening 5, and the tank is flushed through the rotating nozzle 4 while the first and second scraping devices are working, thereby improving the cleaning effect and scraping efficiency.

[0029] The specific use process of the device is as follows:

[0030] When the sludge tank body 1 needs to be cleaned, first start the rotating shaft 9 through the first control switch 2, and drive the side wall scraper 8 to rotate through the rotating shaft 9, at this time the bottom scraper 12 is in the storage state and does not work, first scrape the sludge on the inner wall above the sludge tank body 1 through the side wall scraper 8, and then discharge the scraped sludge from the outlet of the discharge hopper 14 through the inner wall of the discharge hopper 14, and then control the second control switch 3 to start the transmission shaft 13, drive the worm gear mechanism through the transmission shaft 13, and then drive the bottom scraper 12 to flip and expand through the worm gear mechanism, so that the bottom scraper 12 is in contact with the inner wall of the discharge hopper 14, and then drive the bottom scraper 12 to rotate through the rotating shaft 9, and further process the sludge falling on the inner wall of the discharge hopper 14 through the bottom scraper 12, to prevent wall hanging, caking and sludge accumulation, and at the same time, the rotating nozzle 4 can be opened while the first and second scraping devices are working, and the tank side wall is further flushed through the high-pressure water sprayed by the rotating nozzle 4, thereby improving the cleaning effect and scraping efficiency.

[0031] The above are only preferred embodiments of the present application, and do not limit the patent range of the present application, and any equivalent structural transformation made by using the content of the present application specification and drawings, or directly / indirectly applied in other related technical fields are included in the patent protection range of the present application.

Claims

1. A sludge tank with automatic cleaning capability, characterized in that: The sludge tank body (1) includes a sludge tank body (1) with a feed inlet on the top plate and an inverted conical discharge hopper at the bottom. The inner wall of the cylindrical part of the sludge tank body (1) is a first cleaning zone, and the inner wall of the inverted conical part is a second cleaning zone. The sludge tank body (1) is equipped with a first scraping device for treating sludge in the first cleaning zone and a second scraping device for treating sludge in the second cleaning zone.

2. The automatically cleanable sludge tank according to claim 1, characterized in that: The first scraping device includes multiple side wall scrapers (8), a first telescopic connecting rod (10), and a rotating shaft (9). The rotating shaft (9) is rotatably mounted on the top cover of the sludge tank body (1). The rotating shaft (9) is driven to rotate by a first motor. The rotating shaft (9) is placed inside the sludge tank body (1) and is set on the central axis of the sludge tank body (1). Multiple side wall scrapers (8) are set inside the sludge tank body (1) and are evenly arranged around the rotating shaft (9). The length of the side wall scrapers (8) matches the height of the first cleaning zone. The side wall scrapers (8) are connected to the rotating shaft (9) through the first telescopic connecting rod (10). The first telescopic connecting rod (10) provides a pre-tightening force to the side wall scrapers (8).

3. The automatically cleanable sludge tank according to claim 2, characterized in that: The side wall scraper (8) and the first telescopic connecting rod (10) are hinged, and the hinge axis of the side wall scraper (8) and the first telescopic connecting rod (10) is arranged horizontally.

4. The automatically cleanable sludge tank according to claim 2, characterized in that: The second scraping device includes multiple bottom scrapers (12) and a flipping drive system that controls the flipping of the bottom scrapers (12) and realizes the switching between the working state and the storage state of the bottom scrapers (12). The flipping drive system is installed inside the rotating shaft (9) and rotates together with the rotating shaft (9). The multiple bottom scrapers (12) are evenly arranged around the rotating shaft (9). The bottom scrapers (12) are connected to the flipping drive system through the second telescopic connecting rod (11). The length of the bottom scraper (12) matches the height of the second cleaning area. In the working state, the bottom scraper (12) contacts the inner wall of the discharge hopper and is given a pre-tightening force through the second telescopic connecting rod (11). In the storage state, the flipping drive system drives the bottom scraper (12) to flip upward, so that the bottom scraper (12) is separated from the inner wall of the discharge hopper.

5. The automatically cleanable sludge tank according to claim 4, characterized in that: The bottom scraper (12) and the second telescopic connecting rod (11) are hinged, and the hinge axis between the bottom scraper (12) and the second telescopic connecting rod (11) is arranged horizontally.

6. The automatically cleanable sludge tank according to claim 4, characterized in that: The flipping drive system includes a transmission shaft (13) coaxially rotatably mounted within a rotating shaft (9). The transmission shaft (13) is driven to rotate by a second motor. A worm gear is mounted on the transmission shaft (13). A horizontally arranged rotating shaft is fixed to one end of the second telescopic connecting rod (11). The second telescopic connecting rod (11) is rotatably mounted within the rotating shaft (9) via the rotating shaft. A worm wheel is fixed on the rotating shaft, and the worm wheel meshes with the worm gear.

7. The automatically cleanable sludge tank according to claim 6, characterized in that: The top plate of the sludge tank body (1) is also equipped with a first control switch (2) for controlling the opening and closing of the first motor and a second control switch (3) for controlling the opening and closing of the second motor.

8. The automatically cleanable sludge tank according to claim 1, characterized in that: The sludge tank body (1) has a sludge inlet (6) on its top plate, and an energy dissipation plate (7) is fixed inside the sludge tank body (1) directly below the sludge inlet (6) on the top plate.

9. The automatically cleanable sludge tank according to claim 1, characterized in that: The sludge tank body (1) has a flushing pipe port (5) on its top plate, and a rotating nozzle (4) is installed inside the sludge tank body (1) on the flushing pipe port (5).

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