Efficient centrifugal scum self-suction system

Abstract

The utility model discloses an efficient centrifugal scum self-suction system which comprises a conical hopper and a lead screw mechanism, one end of the lead screw mechanism is installed on the side of a pool, the other end of the lead screw mechanism is connected with the conical hopper, an installation sleeve is arranged in the conical hopper, an outer liquid level meter is arranged outside the installation sleeve and connected with a control module, and the control module is connected with the lead screw mechanism. And the control module is connected with the lead screw mechanism. And an inner liquid level meter is arranged in the conical hopper and is connected with the control module. The conical hopper is connected with a slag suction pump, the slag suction pump is connected with a control module, and the slag suction pump is controlled to be started and stopped through water level information detected by the inner liquid level liquid level meter. The high-efficiency centrifugal scum self-suction system disclosed by the utility model is high in automation degree, reduces manual intervention, reduces the operation difficulty and improves the working efficiency; the method is high in applicability, is suitable for various sewage plants, and is beneficial to improving the sewage treatment efficiency and reducing the operation and maintenance cost.

Description

Technical Field

[0001] The utility model relates to the field of sewage treatment, in particular to a high-efficiency centrifugal scum self-priming system. Background Art

[0002] A scum self-priming system is an effective device used in municipal sewage treatment and other wastewater treatment processes to reduce the impact of scum and sludge on water quality. In practice, this device is installed in a fixed location, and the collection area for scum and sludge is also fixed. Supplementary equipment is required for suction stations with excessively large water surfaces, such as auxiliary sludge pushers or water spraying to concentrate scum. Chinese patent publication number CN219752055U discloses a scum collection device that uses manual adjustment of the scum bucket height to avoid scum discharge and unblocking issues. However, this requires constant manual observation, which is labor-intensive and inconvenient. Utility Model Content

[0003] The purpose of the utility model is to provide a high-efficiency centrifugal scum self-priming system to solve the problems that the existing scum collecting equipment is inconvenient to use and requires a lot of manual intervention.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-efficiency centrifugal slag self-priming system, comprising: a cone bucket and a screw mechanism, one end of the screw mechanism is installed on the side of the pool, and the other end is connected to the cone bucket, an installation sleeve is provided inside the cone bucket, an external liquid level gauge is provided outside the installation sleeve, the external liquid level gauge is connected to a control module, and the control module is connected to the screw mechanism.

[0005] As a further improvement of the above technical solution:

[0006] An internal liquid level gauge is provided in the cone bucket, and the internal liquid level gauge is connected to the control module.

[0007] The cone bucket is connected to a slag suction pump, which is connected to a control module. The opening and closing of the slag suction pump is controlled by water level information detected by an internal liquid level gauge.

[0008] The screw mechanism includes a guide rod, a driving screw, a lifting motor and a bracket. The guide rod is arranged on the bracket, and the bracket is fixed to the side of the pool. The driving screw is rotatably arranged on the bracket, and the cone bucket is slidably arranged on the guide rod. The driving screw cooperates with the cone bucket thread, the lifting motor is connected to the driving screw, and the control module is connected to the control module. The lifting motor realizes the lifting and lowering of the cone bucket by driving the driving screw to rotate.

[0009] A slag outlet is provided at the bottom of the cone bucket, and the slag outlet is connected to a slag outlet pipe, which is a PVC hose lined with steel wire.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] Automatic adjustment function: Through the cooperation of the external liquid level gauge and the screw mechanism, the system can automatically adjust the height of the cone bucket to ensure the stability of the relative position of the cone bucket and the liquid surface, adapt to the fluctuations of the liquid level and flow in the sewage treatment plant, and improve the stability and adaptability of the system.

[0012] High-precision monitoring: The static pressure level gauge has high precision (±0.1%~0.2%), which can accurately sense the changes in the liquid level in the pool and provide reliable data support for the automatic adjustment of the system.

[0013] Energy saving and environmental protection: The internal liquid level meter adopts ultrasonic level meter to monitor the slag mud level in the cone bucket in real time, and controls the opening and closing of the slag suction pump according to the mud level, effectively reducing the running time of the slag suction pump and reducing energy consumption.

[0014] In general, the high-efficiency centrifugal slag self-priming system of this utility model is easy to operate, has a high degree of automation, reduces manual intervention, reduces operational difficulty, and improves work efficiency; it has strong applicability and is suitable for all types of sewage treatment plants, helping to improve sewage treatment efficiency and reduce operation and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the installation diagram for the sewage treatment plant of this utility model;

[0016] Figure 2 This is one of the structural diagrams of the utility model's high-efficiency centrifugal slag self-priming system;

[0017] Figure 3 This is the second structural diagram of the high-efficiency centrifugal slag self-priming system of the utility model.

[0018] Figure numerals: 1. cone bucket; 11. mounting sleeve; 12. external liquid level gauge; 13. control module; 14. internal liquid level gauge; 15. slag suction pump; 16. slag discharge pipe; 2. screw mechanism; 21. guide rod; 22. driving screw; 23. lifting motor; 24. bracket. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating directions or positions, are based on the directions or positions shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] like Figure 2 and Figure 3 As shown, the high-efficiency centrifugal slag self-priming system of this embodiment includes: a cone bucket 1 and a screw mechanism 2. One end of the screw mechanism 2 is installed on the side of the pool, and the other end is connected to the cone bucket 1 to drive the cone bucket 1 to rise and fall; the cone bucket 1 is a cone or other shape, and its general structure is a cone structure with a large upper part and a small lower part.

[0024] A mounting sleeve 11 is provided within the cone bucket 1, and an external liquid level gauge 12 is provided outside the mounting sleeve 11. The external liquid level gauge 12 is connected to a control module 13, which is in turn connected to a screw mechanism 2. Due to fluctuations in the influent flow rate of the sewage treatment plant, causing water surface fluctuations, when the difference ΔH between the vertical height of the cone bucket 1 rim and the static pressure height of the external liquid level gauge 12 exceeds a set range, the screw mechanism 2 automatically adjusts the cone bucket 1 height position up and down to ensure that ΔH remains within the set range. The external liquid level gauge 12 is a built-in static pressure level gauge. The static pressure level gauge is located within the mounting sleeve 11. The gap between the inner wall of the mounting sleeve 11 and the static pressure level gauge is 10 mm. If the gap is too large, aeration in the tank may cause shaking, affecting the stability of the monitoring data. If the gap is too small, it will be detrimental to the installation and routine maintenance of the device. The static pressure level gauge can effectively sense and feedback the changes in the liquid level in the pool. The liquid level sensing signal is transmitted to the control module 13 through 4~20 mA. The ΔH value is calculated through the PLC programming of the control module 13, and then the screw mechanism 2 is controlled according to the set range to accurately adjust the operating height position of the cone bucket 1. The upper edge of the cone bucket 1 is 100±10 mm higher than the liquid level. The bottom of the installation sleeve 11 is sealed. The monitoring accuracy of the static pressure level gauge is ±0.1%~0.2%. A water-permeable hole is set on the bottom side of the outer side of the installation sleeve 11, and the hole diameter is preferably 20 mm, so as to sense the changes in the water level in the pool, facilitate the automatic take-off and landing control of the device, and prevent bubbles in the pool from entering the installation sleeve 11 from the bottom to cause data interference.

[0025] The conical hopper 1 is equipped with an internal liquid level gauge 14, which is connected to the control module 13. The conical hopper 1 is also connected to a slag suction pump 15, which is also connected to the control module 13. The slag suction pump 15 is controlled by the water level detected by the internal liquid level gauge 14. When the material level in the conical hopper 1 reaches a preset position, the internal liquid level gauge 14 inputs a signal to the control module 13, which controls the operation of the slag suction pump 15.

[0026] The screw mechanism 2 includes a guide rod 21, a drive screw 22, a lifting motor 23, and a bracket 24. The guide rod 21 is mounted on the bracket 24, which is fixed to the side of the tank. The drive screw 22 is rotatably mounted on the bracket 24. The conical bucket 1 is slidably mounted on the guide rod 21. The drive screw 22 is threadedly engaged with the conical bucket 1. The lifting motor 23 is connected to the drive screw 22, and the control module 13 is connected to the control module 13. The lifting motor 23 drives the drive screw 22 to rotate, thereby raising and lowering the conical bucket 1. A reinforcing channel steel member 17 is provided on the outside of the conical bucket 1 and is connected to the guide rod 21 and drive screw 22 of the screw mechanism 2.

[0027] A slag outlet is located at the bottom of the conical hopper 1, connected to a slag pipe 16. A slag suction pump 15 is installed near the tank to ensure its service life. This pipe 16 draws material out of the outlet. The pipe 16 is a PVC hose lined with steel wire, capable of withstanding external pressures of at least -0.04 MPa, preventing deformation caused by excessive water pressure or negative pressure. The outlet of the slag pump 15 discharges into a sludge tank.

[0028] Driven by the water flow, scum accumulates on one side of the corridor and flows by gravity into the cone hopper 1, reducing the power required for active capture. A static pressure level gauge monitors and enables the cone hopper 1 to automatically compensate for changes in the biochemical unit liquid level caused by the impact of the inflow. A bottom-sealed casing 11 is installed, with permeable holes on the side of the bottom end of the casing, near the outside of the cone hopper. This not only senses changes in the water level within the tank, facilitating the automatic lifting and lowering control of the device, but also prevents bubbles from entering the casing and causing interference. An ultrasonic level gauge 14 monitors the scum level within the cone hopper in real time. The scum pump 15 only activates when the scum level reaches a set limit, reducing energy waste caused by the long-term operation of the scum pump 15. Furthermore, even after the scum level reaches the minimum limit, the diaphragm pump continues to operate for 10-30 seconds to discharge scum from the pipeline, effectively preventing scum from accumulating and rotting in the pipeline or freezing and clogging it.

[0029] like Figure 1 The figure shows an installation diagram for a sewage treatment plant. During use, the high-efficiency centrifugal scum self-priming system of the present invention is installed on one side of the tank body. The scum outlet is connected to the sludge tank via a pipe. The screw mechanism 2 and the cone bucket 1 are installed. When the scum height is greater than the cone bucket 1, the scum will enter the cone bucket 1. As the water surface height constantly changes, the scum height also constantly changes. The external liquid level is measured by the external liquid level gauge 12. The operation of the screw mechanism 2 is controlled according to the height difference, allowing the scum to enter the cone bucket 1 without manual adjustment. The internal liquid level gauge 14 can monitor the scum mud level in the cone bucket in real time. When the mud level reaches the set limit, the scum suction pump 15 will be turned on, reducing the energy waste caused by the long-term operation of the scum suction pump 15. The utility model is easy to use, does not require manual intervention, and can be managed unmanned.

[0030] The above is only an embodiment of the present invention, and common knowledge such as the specific structure and characteristics of the scheme are not described in detail here. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claim involved.

Claims

1. A high-efficiency centrifugal slag self-priming system, characterized in that: include: A cone bucket (1) and a screw mechanism (2), wherein one end of the screw mechanism (2) is installed on the side of the pool and the other end is connected to the cone bucket (1), a mounting sleeve (11) is provided inside the cone bucket (1), an external liquid level gauge (12) is provided outside the mounting sleeve (11), the external liquid level gauge (12) is connected to a control module (13), and the control module (13) is connected to the screw mechanism (2).

2. The high-efficiency centrifugal slag self-priming system according to claim 1 is characterized in that: An internal liquid level gauge (14) is provided in the cone bucket (1), and the internal liquid level gauge (14) is connected to the control module (13).

3. The high-efficiency centrifugal slag self-priming system according to claim 2 is characterized in that: The cone hopper (1) is connected to a slag suction pump (15), which is connected to a control module (13). The opening and closing of the slag suction pump (15) is controlled by water level information detected by an internal liquid level gauge (14).

4. The high-efficiency centrifugal slag self-priming system according to claim 3 is characterized in that: The screw mechanism (2) includes a guide rod (21), a driving screw (22), a lifting motor (23) and a bracket (24), wherein the guide rod (21) is arranged on the bracket (24), the bracket (24) is fixed to the side of the pool, the driving screw (22) is rotatably arranged on the bracket (24), the cone bucket (1) is slidably arranged on the guide rod (21), the driving screw (22) is threadedly matched with the cone bucket (1), the lifting motor (23) is connected to the driving screw (22), the control module (13) is connected to the control module (13), and the lifting motor (23) realizes the lifting of the cone bucket (1) by driving the driving screw (22) to rotate.

5. The high-efficiency centrifugal slag self-priming system according to claim 2, characterized in that: A slag outlet is provided at the bottom of the cone bucket (1), and the slag outlet is connected to a slag outlet pipe (16). The slag outlet pipe (16) is a PVC hose lined with steel wire.

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