Sludge box for vehicle

Abstract

The utility model provides a sludge box for a vehicle, which comprises a container shell, a cavity of the container shell is internally divided into a sludge storage bin and an operation bin, one side of the operation bin is provided with a container door, and a sludge pump, a sludge pumping pipe and a supernate return pipe are arranged in the operation bin. According to the utility model, the feeding pipe, the driving motor and the stirrer are arranged, a flocculating agent is fed into the supernatant backflow weir groove, the driving motor is started to drive the stirrer to stir for a period of time and then the stirring is stopped, and sludge in the supernatant is gathered into large sludge balls under the action of the flocculating agent and settles into the falling sludge gathering pipe; then the driving motor is driven by the air cylinder to descend, at the moment, the opening baffle can be separated from the pipe opening of the fallen sludge gathering pipe through the driving rod, large sludge balls fall to the inner bottom of the sludge storage bin, sludge impurities still existing in the supernatant flowing into the supernatant backflow weir groove can be removed as much as possible through the design, the cleanliness of the supernatant is better, and the operation is convenient. The supernate can flow back to the regulating tank more favorably.

Description

Technical Field

[0001] This utility model relates to a vehicle sludge tank. Background Technology

[0002] Sludge treatment is a crucial component of wastewater treatment. With the widespread adoption of wastewater treatment facilities, increased treatment rates, and more sophisticated treatment processes, the amount of sludge produced by wastewater treatment plants will increase significantly, leading to secondary pollution problems that cannot be ignored. Therefore, how to rationally treat and dispose of sludge has become a critical issue that urban wastewater treatment plants and relevant departments must address. The sludge transfer and treatment problem at small rural wastewater treatment plants is particularly unique. These plants are numerous, geographically dispersed, and lack operating funds. During operation, each wastewater treatment plant produces a small amount of sludge, but it is widely distributed. Each plant is equipped with separate sludge treatment equipment, resulting in low efficiency, high costs, and high operating expenses. Currently, sludge collection vehicles are vacuum trucks, but these lack sludge thickening capabilities, leading to excessively high water content in the tanks, wasted space, and an inability to collect and transfer sludge from multiple wastewater treatment plants at once. Furthermore, vacuum trucks are costly to transport, difficult to dispatch, and cannot be replaced by other ordinary vehicles, significantly limiting sludge collection and transfer.

[0003] Utility model patent CN207591350U discloses a novel sludge transfer container, comprising a container shell. The cavity of the container shell is divided into a sludge storage bin and an operating bin. The operating bin is equipped with a container door and contains a sludge pump, a sludge suction pipe, and a supernatant return pipe. This transfer container utilizes the principle of vertical flow sedimentation to return the supernatant to the equalization tank, achieving sludge concentration, reducing the water content of the sludge, and making more efficient use of the sludge storage bin space. Furthermore, as an independent container, it can be placed on a regular truck, replacing the traditional vacuum truck and making sludge storage and transfer more efficient. However, the above-mentioned utility model still has room for improvement: the supernatant flowing into the supernatant return weir still contains many sludge impurities. If these impurities are removed further through structural improvements to the device, the cleanliness of the supernatant will be better, making it more conducive to the return of the supernatant to the equalization tank. Utility Model Content

[0004] The purpose of this invention is to provide a vehicle sludge tank to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a vehicle-mounted sludge tank, comprising a container shell, the cavity of which is divided into a sludge storage bin and an operating bin. A container door is installed on one side of the operating bin. A sludge pump, a sludge suction pipe, and a supernatant return pipe are installed inside the operating bin. One end of the sludge pump is connected to the sludge suction pipe, and the other end is connected to a water pipe. The water pipe leads to the sludge storage bin inside the container shell and is connected to a central guide cylinder. The central guide cylinder is fixed in the middle of the sludge storage bin. A sludge hopper is installed below the sludge storage bin, and a vent pipe with a vent valve is installed at the lower end of the sludge hopper. Above the sludge storage bin, near the operating bin... A supernatant return weir is provided on the side. The supernatant return weir has a filter cloth on its inner end face near the sludge storage silo, and the other side is connected to the supernatant return pipe. A sludge collection pipe extends downward from the bottom of the supernatant return weir. A baffle plate is provided at the opening of the sludge collection pipe. A drive rod is fixed on the baffle plate. An agitator is installed at the end of the drive rod through a bearing sleeve. The top of the agitator passes through the supernatant return weir and is connected to the output shaft of the drive motor. The drive motor is mounted on a cylinder through a fixing bracket. A feeding pipe is provided on one side of the drive motor. The discharge end of the feeding pipe extends into the supernatant return weir.

[0006] The supernatant return pipe and sludge suction pipe are respectively connected from inside the operating chamber to the external equalization tank and sludge tank.

[0007] The central guide tube extends above the top of the container shell.

[0008] The other side of the supernatant return weir is connected to the supernatant return pipe via a U-shaped pipe.

[0009] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: This utility model is equipped with a feeding pipe, a drive motor and a stirrer. The flocculant is added into the supernatant return weir, the drive motor is started to drive the stirrer to stir for a period of time, and then the stirring is stopped. At this time, the sludge in the supernatant is aggregated into large sludge clumps under the action of flocculant and settles into the sludge collection pipe. Then, the drive motor is driven by the cylinder to descend. At this time, the baffle plate can be disengaged from the opening of the sludge collection pipe by the drive rod, and the large sludge clumps fall to the bottom of the sludge storage tank. This design can remove the sludge impurities still present in the supernatant flowing into the supernatant return weir as much as possible, and the cleanliness of the supernatant will be better, which is more conducive to the return of the supernatant to the equalization tank. Attached Figure Description

[0010] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. In the drawings:

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] In the diagram: 1. Container shell; 2. Sludge storage bin; 3. Operating bin; 4. Container door; 5. Sludge pump; 6. Sludge pumping pipe; 7. Supernatant return pipe; 8. Water pipe; 9. Central guide tube; 10. Sludge hopper; 11. Vent pipe; 12. Supernatant return weir; 13. Filter cloth; 14. Sludge collection pipe; 15. Baffle plate; 16. Drive rod; 17. Agitator; 18. Drive motor; 19. Cylinder; 20. Feeding pipe; 21. U-shaped pipe. Detailed Implementation

[0013] 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.

[0014] Please see Figure 1 This utility model provides a technical solution: a vehicle-mounted sludge tank, including a container shell 1. The cavity of the container shell 1 is divided into a sludge storage bin 2 and an operating bin 3. A container door 4 is installed on one side of the operating bin 3. A sludge pump 5, a sludge suction pipe 6, and a supernatant return pipe 7 are installed inside the operating bin 3. One end of the sludge pump 5 is connected to the sludge suction pipe 6, and the other end is connected to a water pipe 8. The water pipe 8 leads to the sludge storage bin 2 of the container shell 1 and is connected to a central guide cylinder 9. The central guide cylinder 9 is fixed in the middle of the sludge storage bin 2. A sludge hopper 10 is installed below the sludge storage bin 2. The lower end of the sludge hopper 10 is provided with a vent pipe 11 for installing a vent valve. A supernatant return pipe is provided on the upper part of the sludge storage bin 2 near the operating bin 3. The supernatant return weir 12 has a filter cloth 13 on its inner end face near the sludge storage bin 2, and the other side of the filter cloth is connected to the supernatant return pipe 7. The bottom of the supernatant return weir 12 extends downward to the sludge collection pipe 14. A baffle plate 15 is provided at the opening of the sludge collection pipe 14. A drive rod 16 is fixed on the baffle plate 15. An agitator 17 is installed at the end of the drive rod 16 through a bearing sleeve. The top of the agitator 17 passes through the supernatant return weir 12 and is connected to the output shaft of the drive motor 18. The drive motor 18 is mounted on the cylinder 19 through a fixing bracket. A feeding pipe 20 is provided on one side of the drive motor 18. The discharge end of the feeding pipe 20 extends into the supernatant return weir 12.

[0015] The supernatant return pipe 7 and the sludge suction pipe 6 are respectively connected from the operating chamber 3 to the external equalization tank and sludge tank.

[0016] The central guide tube 9 extends above the top of the container shell 1.

[0017] The other side of the supernatant return weir 12 is connected to the supernatant return pipe 7 via a U-shaped pipe 21, which can extend the time for the supernatant to return to the equalization tank, thereby extending the flocculation time and ensuring the flocculation effect.

[0018] The specific working principle of this application is as follows: When using this utility model, the container door 4 is opened, the sludge suction pipe 6 is placed into the sludge tank, and the supernatant return pipe 7 is placed into the equalization tank. The sludge pump 5 is started to drive the sludge-water mixture through the water pipe 8 into the central guide cylinder 9. Combined with the sludge hopper 10 structure at the bottom of the container shell 1, the heavier sludge settles in the sludge hopper 10. The supernatant is then filtered by the filter cloth 13 and enters the supernatant return weir 12, returning to the equalization tank through the supernatant return pipe 7. This process serves as a concentration, resulting in high sludge density and low water content in the sludge storage bin 2, greatly improving the sludge collection rate and utilizing the space of the sludge storage bin 2. Simultaneously, the feed pipe 20 is used to... Flocculant is added to the supernatant return weir 12, and the drive motor 18 is started to keep the agitator 17 rotating at a constant speed. At this time, under the action of flocculant, a small amount of sludge in the supernatant gathers into a large sludge clump and sinks into the sludge collection pipe 14. After the sludge water is pumped out, the drive motor 18 is driven down by the start cylinder 19. At this time, the baffle plate 15 can be disengaged from the opening of the sludge collection pipe 14 by the drive rod 16, and the large sludge clump falls to the bottom of the sludge storage tank 2. This design can remove the sludge impurities that still exist in the supernatant flowing into the supernatant return weir 12 as much as possible, and the cleanliness of the supernatant will be better, which is more conducive to the return of the supernatant to the equalization tank.

[0019] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0020] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A vehicle-mounted sludge tank, comprising a container shell (1), wherein the cavity of the container shell (1) is divided into a sludge storage chamber (2) and an operating chamber (3), a container door (4) is installed on one side of the operating chamber (3), and a sludge pump (5), a sludge suction pipe (6) and a supernatant return pipe (7) are provided in the operating chamber (3), one end of the sludge pump (5) is connected to the sludge suction pipe (6), and the other end is connected to a water pipe (8), the water pipe (8) leads to the sludge storage chamber (2) of the container shell (1) and is connected to a central guide. The central guide cylinder (9) is fixed in the middle of the sludge storage silo (2). A sludge hopper (10) is installed below the sludge storage silo (2). The lower end of the sludge hopper (10) is provided with a vent pipe (11) for installing a vent valve. A supernatant return weir (12) is provided on the side of the sludge storage silo (2) near the operating chamber (3). A filter cloth (13) is provided on the inner end face of the supernatant return weir (12) near the sludge storage silo (2), and the other side of the weir is connected to the supernatant return pipe (7). The feature is that: The bottom of the supernatant return weir (12) extends downward to a mud collection pipe (14). A baffle plate (15) is provided at the opening of the mud collection pipe (14). A drive rod (16) is fixed on the baffle plate (15). An agitator (17) is installed at the end of the drive rod (16) through a bearing sleeve. The top of the agitator (17) passes through the supernatant return weir (12) and is connected to the output shaft of the drive motor (18). The drive motor (18) is mounted on a cylinder (19) through a fixing bracket. A feeding pipe (20) is provided on one side of the drive motor (18). The discharge end of the feeding pipe (20) extends into the supernatant return weir (12). The other side of the supernatant return weir (12) is connected to the supernatant return pipe (7) through a U-shaped pipe (21).

2. The vehicle-mounted sludge tank according to claim 1, characterized in that: The supernatant return pipe (7) and the sludge suction pipe (6) are respectively connected from the inside of the operating chamber (3) to the external equalization tank and sludge tank.

3. A vehicle-mounted sludge tank according to claim 1, characterized in that: The central guide tube (9) extends above the top of the container shell (1).

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