Oil sludge scraper operation device for wastewater treatment

Abstract

The utility model relates to an oil sludge scraper operation device for wastewater treatment. The oil sludge scraper operation device comprises a traveling crane remote controller, an oil sludge scraper mechanism and a hanging bracket mechanism, the hanging bracket mechanism is arranged above the sedimentation tank or the oil separation tank; the oil sludge scraper mechanism is hung on the hanging bracket mechanism, can move forwards or backwards on the hanging bracket mechanism and is used for treating oil sludge in a sedimentation tank or an oil separation tank; the crane remote controller comprises an emitter and a receiver, the transmitter is in wireless connection with the receiver; the receiver is arranged on the oil sludge scraping machine mechanism, is connected with a control circuit of the oil sludge scraping machine mechanism and is used for controlling the oil sludge scraping machine mechanism to finish oil sludge scraping work. According to the operation device of the oil sludge scraper provided by the utility model, an operator is prevented from operating on a moving oil scraper when the oil scraper operates, so that potential safety hazards during working are eliminated for the operator, and a safe working environment is provided.

Description

Technical Field

[0001] This utility model belongs to the field of water treatment technology, and in particular relates to an operating device for a wastewater scraper. Background Technology

[0002] In the water treatment industry, the oil skimmer is an indispensable piece of equipment. It mainly scrapes the heavy oil sludge and scum that have settled at the bottom of the pool and floated on the surface of the pool to the heavy oil tank and light oil tank at both ends of the pool, and then sends the oil sludge out for treatment through the pipes at the bottom of the tank.

[0003] According to the process design, many water treatment sites have rectangular sedimentation tanks or oil separators, which means that the oil skimmer is constantly moving back and forth on the tank to scrape sludge. Since the oil skimmer changes its operating frequency according to the changes in the incoming water quality, operators often need to climb onto the moving oil skimmer to operate it while it is running, which poses a great safety hazard to the operators. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the existing technical problems, this utility model provides an operating device for a wastewater scraper.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0008] An operating device for a wastewater treatment oil scraper includes: a crane remote control, an oil scraper mechanism, and a suspension mechanism;

[0009] The hanging mechanism is installed above the sedimentation tank or oil separator;

[0010] The oil sludge scraper mechanism is suspended on the hanging mechanism and can move forward or backward on the hanging mechanism to treat the oil sludge in the sedimentation tank or oil separator.

[0011] The overhead crane remote controller includes a transmitter and a receiver.

[0012] The transmitter is wirelessly connected to the receiver;

[0013] The receiver is mounted on the sludge scraper mechanism and connected to the control circuit of the sludge scraper mechanism to control the sludge scraper mechanism to complete the sludge scraping work.

[0014] Preferably, the oil scraper mechanism includes: a main frame, a moving mechanism, a heavy oil scraper assembly, and a light oil scraper assembly;

[0015] The moving mechanism is located on the top of the main frame of the device;

[0016] Both the heavy oil scraper assembly and the light oil scraper assembly are located at the bottom of the main frame of the device.

[0017] The receiver is mounted on the main frame of the device and is controlled to connect to the moving mechanism, the heavy oil scraper assembly, and the light oil scraper assembly, respectively.

[0018] Preferably, the moving mechanism is equipped with two walking motors;

[0019] The two walking motors are connected to a forward switch circuit and a reverse switch circuit;

[0020] Both the forward switch circuit and the backward switch circuit are connected to the neutral wire of the power supply.

[0021] Preferably, the heavy oil scraper assembly is equipped with a heavy oil scraper motor;

[0022] The heavy oil scraper motor is connected to a first upward switch circuit and a first downward switch circuit.

[0023] Both the first uplink switch circuit and the first downlink switch circuit are connected to the neutral wire of the power supply.

[0024] Preferably, the light oil scraper assembly is equipped with a light oil scraper motor;

[0025] The light oil scraper motor is connected to a second upward switch circuit and a second downward switch circuit.

[0026] Both the second up-side switching circuit and the second down-side switching circuit are connected to the neutral wire of the power supply.

[0027] Preferably, the receiver is provided with a forward terminal, a backward terminal, a first uplink terminal, a second uplink terminal, a first downlink terminal, and a second downlink terminal;

[0028] The forward terminal is connected to the forward switch circuit;

[0029] The retraction terminal is connected to the retraction switch circuit;

[0030] The first uplink terminal is connected to the first uplink switching circuit;

[0031] The second uplink terminal is connected to the second uplink switching circuit;

[0032] The first downlink terminal is connected to the first downlink switching circuit;

[0033] The second downlink terminal is connected to the second downlink switch circuit.

[0034] Preferably, the common terminal of the receiver is connected to the live wire of the power supply;

[0035] The power source is three-phase alternating current.

[0036] Preferably, the heavy oil scraper assembly is provided with a heavy oil scraper;

[0037] The light oil scraper assembly is equipped with a light oil scraper.

[0038] The heavy oil scraper motor is connected to the heavy oil scraper drive and can drive the heavy oil scraper to move up or down.

[0039] The light oil scraper motor is connected to the light oil scraper drive and can drive the light oil scraper to move up or down.

[0040] (III) Beneficial Effects

[0041] The wastewater treatment oil skimmer operating device provided in this application has the following beneficial effects:

[0042] Connecting the receiver of the gantry crane remote control to the control circuit of the oil scraper mechanism, and sending commands to the receiver via buttons on the wireless remote control (transmitter), allows for control of the scraper's forward and backward movement, as well as the raising and lowering of the heavy oil scraper and the light oil scraper. This eliminates the need for operators to climb onto the moving scraper while it is running, thus removing safety hazards and providing a safe working environment. Attached Figure Description

[0043] Figure 1 A schematic diagram of the power supply system for the operating device of a wastewater scraper for sludge removal is provided for this utility model.

[0044] Figure 2 This utility model provides a schematic diagram showing the connection structure between the receiver and the control circuit of the oil scraper mechanism in a wastewater treatment oil scraper operating device. Detailed Implementation

[0045] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0046] Example 1

[0047] like Figure 1 and Figure 2 As shown: This embodiment provides an operating device for a wastewater treatment oil scraper, including: a crane remote control, an oil scraper mechanism, and a suspension mechanism.

[0048] Specifically, the hanging mechanism is installed above the sedimentation tank or oil separator; the sludge scraper mechanism is suspended on the hanging mechanism and can move forward or backward on the hanging mechanism to treat the sludge in the sedimentation tank or oil separator.

[0049] The overhead crane remote controller includes a transmitter and a receiver; the transmitter and the receiver are wirelessly connected; the receiver is mounted on the sludge scraper mechanism and connected to the control circuit of the sludge scraper mechanism to control the sludge scraper mechanism to complete the sludge scraping work.

[0050] In this embodiment, the receiver of the overhead crane remote control is connected to the control circuit of the oil scraper mechanism. Commands are sent to the receiver via buttons on the wireless remote control (transmitter), enabling control of the scraper's forward and backward movement, as well as the raising and lowering of the heavy oil scraper and the light oil scraper. This avoids the need for operators to climb onto the moving scraper while it is running, eliminating safety hazards and providing a safe working environment.

[0051] In detail, the oil scraper mechanism includes: a main frame, a moving mechanism, a heavy oil scraper assembly, and a light oil scraper assembly.

[0052] The moving mechanism is located at the top of the main frame of the device; the heavy oil scraper assembly and the light oil scraper assembly are both located at the bottom of the main frame of the device; the receiver is located on the main frame of the device and is controlled and connected to the moving mechanism, the heavy oil scraper assembly and the light oil scraper assembly respectively.

[0053] Compared to existing sludge scrapers, this embodiment adds a gantry crane remote control. The modifications are minimal, yet they solve the practical problems, eliminate safety hazards for operators, and provide a safe working environment.

[0054] In this embodiment, the moving mechanism is equipped with two walking motors; the two walking motors are connected to a forward switch circuit and a backward switch circuit; both the forward switch circuit and the backward switch circuit are connected to the neutral wire of the power supply.

[0055] Specifically, the heavy oil scraper assembly is equipped with a heavy oil scraper motor; the heavy oil scraper motor is connected to a first upward switch circuit and a first downward switch circuit; both the first upward switch circuit and the first downward switch circuit are connected to the neutral wire of the power supply.

[0056] In this embodiment, the light oil scraper assembly is equipped with a light oil scraper motor; the light oil scraper motor is connected to a second upward switch circuit and a second downward switch circuit; both the second upward switch circuit and the second downward switch circuit are connected to the neutral line of the power supply.

[0057] Specifically, the receiver is provided with a forward terminal, a backward terminal, a first uplink terminal, a second uplink terminal, a first downlink terminal, and a second downlink terminal. The forward terminal is connected to the forward switch circuit; the backward terminal is connected to the backward switch circuit; the first uplink terminal is connected to the first uplink switch circuit; the second uplink terminal is connected to the second uplink switch circuit; the first downlink terminal is connected to the first downlink switch circuit; and the second downlink terminal is connected to the second downlink switch circuit.

[0058] In practical applications, the receiver's common terminal is connected to the live wire of the power supply; the power supply is three-phase alternating current.

[0059] In this embodiment, the heavy oil scraper assembly is provided with a heavy oil scraper; the light oil scraper assembly is provided with a light oil scraper; the heavy oil scraper motor is connected to the heavy oil scraper drive and can drive the heavy oil scraper to move up or down; the light oil scraper motor is connected to the light oil scraper drive and can drive the light oil scraper to move up or down.

[0060] Example 2

[0061] Large petrochemical enterprises generate large amounts of oily wastewater during their production processes. To ensure that the wastewater meets discharge standards, the enterprises have installed multiple large grease traps to treat this wastewater. These grease traps are rectangular, each measuring 30 meters in length, 15 meters in width, and 5 meters in depth. The oil sludge in the traps has a complex composition, including both denser heavy oil that settles at the bottom and lighter oil that floats on the surface of the wastewater. Moreover, the oil content varies significantly with production fluctuations.

[0062] To effectively clean the grease trap, the company introduced the grease scraper operating device for wastewater treatment, as described in this embodiment. During the installation phase, the construction team, based on the structural characteristics of the grease trap, constructed a hanging frame mechanism using high-strength steel. This mechanism spans the entire grease trap, with both ends securely connected to the concrete structure along the trap's edge via embedded parts. Calculations showed that the hanging frame mechanism can withstand the total weight of the grease scraper mechanism and a full load of grease, and also possesses a certain degree of wind resistance, capable of withstanding the local common level 6 gale. The grease scraper mechanism is evenly suspended from the hanging frame mechanism by four high-strength slings, ensuring operational stability.

[0063] The transmitter of the gantry crane remote control is compact and lightweight, ergonomically designed for easy handheld operation. Its surface features a logically laid-out button layout, including forward, reverse, heavy oil scraper up / down, light oil scraper up / down, and light oil scraper down buttons. The buttons have a non-slip texture and are clearly labeled in both Chinese and English. The receiver is housed in a dedicated protective case inside the main frame of the oil scraper mechanism. This case boasts excellent waterproof and dustproof performance, achieving an IP65 protection rating, effectively protecting the receiver from the harsh environment surrounding the oil separator. The receiver connects to the control circuitry of the oil scraper mechanism via a dedicated waterproof cable, which is shielded to minimize signal interference.

[0064] Two YVP132M-4 motors, each with a power of 7.5kW and a speed of 1440r / min, are mounted on the top of the mobile mechanism. These motors are connected to the forward and backward terminals of the receiver via forward and reverse switch circuits. When the operator presses the forward button on the transmitter, the transmitter sends a wireless signal of a specific frequency to the receiver. Upon receiving the signal, the receiver triggers the forward switch circuit, energizing the motors and causing them to start running. The motors then drive the sludge scraper mechanism forward along the track on the suspension mechanism via a reducer and drive chain. The moving speed can be adjusted from 0-10m / min using the speed control button on the transmitter. When the reverse button is pressed, the reverse switch circuit activates, reversing the motors and causing the sludge scraper mechanism to move backward.

[0065] The heavy oil scraper motor of the heavy oil scraper assembly is model JZQ-250 with a power of 5.5kW. It is connected to the first up-switching circuit and the first down-switching circuit, which are respectively connected to the first up-switching terminal and the first down-switching terminal of the receiver. When the heavy oil sediment at the bottom of the oil separator reaches a thickness of more than 10cm, the operator controls the transmitter to drive the heavy oil scraper motor to move the heavy oil scraper downward according to the situation in the tank.

[0066] The light oil scraper assembly features a 3kW motor connected to the second upward and downward switching circuits, and also connected to the second upward and downward terminals of the receiver. For light oil floating on the wastewater surface, the operator uses a remote control to move the scraper downwards. The scraper, made of flexible material, adheres closely to the water surface. Upon contact with the oil, it controls two moving motors to advance or retreat, scraping away the light oil sludge. Throughout operation, the scraper is equipped with a real-time monitoring system. Using a camera mounted on the main frame, the operator can clearly observe the entire scraping process on a monitor screen in the control room, ensuring safe and efficient operation. The system also features a fault warning function to protect equipment and personnel safety. Actual operational testing shows that this device is more than three times more efficient than traditional oil scraping equipment, while effectively reducing the operator's workload and safety risks.

[0067] Example 3

[0068] The urban wastewater treatment plant, serving a population of one million, plays a crucial role in treating oily sludge impurities in domestic sewage through its sedimentation tanks. There are six sedimentation tanks in total, each measuring 25 meters long, 12 meters wide, and 4 meters deep. The oily sludge in domestic sewage mainly originates from kitchen wastewater and catering wastewater. The properties of the oily sludge differ from those in petrochemical plants, being relatively lighter and more dispersed.

[0069] To meet the needs of cleaning oily sludge from the sedimentation tank, the wastewater treatment plant introduced this oil sludge scraper. During the installation of the hanging mechanism, considering the relatively humid environment around the sedimentation tank, the construction team implemented anti-corrosion treatment on the hanging mechanism using hot-dip galvanizing, achieving a coating thickness of 80μm, effectively extending the service life of the hanging mechanism. After the oil sludge scraper mechanism was installed, technicians conducted adjustments to ensure smooth movement on the hanging mechanism without any jamming.

[0070] The transmitter of the overhead crane remote control is equipped with a rechargeable lithium battery, which can operate continuously for 8 hours after a full charge, meeting the daily work needs of a wastewater treatment plant. After the receiver was installed inside the main frame of the device, technicians tested its signal reception range. Within a 30-meter radius around the sedimentation tank, the receiver was able to stably receive the signal emitted by the transmitter.

[0071] During operation, the two traveling motors of the moving mechanism move at a constant speed of 8 m / min on the hanging mechanism, coordinated with the forward and reverse switching circuits and the receiver, ensuring that the oil sludge scraper can complete a full inspection of the sedimentation tank within 20 minutes. When oil sludge is found at the bottom of the sedimentation tank, the operator sends a command to the receiver via the transmitter, and the heavy oil scraper motor responds via the first upward and first downward switching circuits. The heavy oil scraper adopts a serrated design to enhance the scraping effect. During the downward movement, the motor drives the scraper down at a steady speed. When it contacts the oil sludge layer, the motor torque increases. Monitored by a torque sensor, when the torque reaches the set value, it indicates that the scraper has penetrated to the appropriate depth, and the motor stops descending.

[0072] For the small amount of floating grease on the surface of the sedimentation tank, the light oil scraper motor, under the action of the second upward and second downward switching circuits, controls the light oil scraper to move downward according to the instructions received by the receiver. The edge of the light oil scraper is designed to be arc-shaped, which can better gather the floating grease. During the cleaning process, the wastewater treatment plant staff will also adjust the frequency of oil sludge scraping and the working depth of the scraper based on the water quality test data of the sedimentation tank. For example, when a high oil content is detected in the water, the number of times the oil sludge is scraped is increased; when a thick layer of oil sludge is found, the downward depth of the scraper is appropriately increased.

[0073] Furthermore, this sludge scraper has an interface with the wastewater treatment plant's automation system, allowing it to upload operational data to the plant's central control system in real time. Staff in the control room can remotely monitor the scraper's operating status, including running time, travel distance, and motor operating parameters. Meanwhile, after a period of operation, this device effectively ensured the normal operation of the sedimentation tank, reduced the decline in wastewater treatment efficiency caused by sludge accumulation, and also lowered the cost and safety hazards of manual cleaning.

[0074] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can conceive of other specific embodiments of this utility model without creative effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A sludge scraper operating device for wastewater treatment, characterized in that, include: Overhead crane remote control, sludge scraper mechanism, and lifting mechanism; The hanging mechanism is installed above the sedimentation tank or oil separator; The oil sludge scraper mechanism is suspended on the hanging mechanism and can move forward or backward on the hanging mechanism to treat the oil sludge in the sedimentation tank or oil separator. The overhead crane remote controller includes a transmitter and a receiver. The transmitter is wirelessly connected to the receiver; The receiver is mounted on the sludge scraper mechanism and connected to the control circuit of the sludge scraper mechanism to control the sludge scraper mechanism to complete the sludge scraping work.

2. The wastewater treatment oil sludge scraper operating device according to claim 1, characterized in that, The oil scraper mechanism includes: a main frame, a moving mechanism, a heavy oil scraper assembly, and a light oil scraper assembly; The moving mechanism is located on the top of the main frame of the device; Both the heavy oil scraper assembly and the light oil scraper assembly are located at the bottom of the main frame of the device. The receiver is mounted on the main frame of the device and is controlled to connect to the moving mechanism, the heavy oil scraper assembly, and the light oil scraper assembly, respectively.

3. The wastewater treatment oil sludge scraper operating device according to claim 2, characterized in that, The moving mechanism is equipped with two walking motors; The two walking motors are connected to a forward switch circuit and a reverse switch circuit; Both the forward switch circuit and the backward switch circuit are connected to the neutral wire of the power supply.

4. The wastewater treatment oil sludge scraper operating device according to claim 3, characterized in that, The heavy oil scraper assembly is equipped with a heavy oil scraper motor. The heavy oil scraper motor is connected to a first upward switch circuit and a first downward switch circuit. Both the first uplink switch circuit and the first downlink switch circuit are connected to the neutral wire of the power supply.

5. The wastewater treatment oil sludge scraper operating device according to claim 4, characterized in that, The light oil scraper assembly is equipped with a light oil scraper motor. The light oil scraper motor is connected to a second upward switch circuit and a second downward switch circuit. Both the second up-side switching circuit and the second down-side switching circuit are connected to the neutral wire of the power supply.

6. The wastewater treatment oil sludge scraper operating device according to claim 5, characterized in that, The receiver is provided with a forward terminal, a backward terminal, a first uplink terminal, a second uplink terminal, a first downlink terminal, and a second downlink terminal; The forward terminal is connected to the forward switch circuit; The rear terminal is connected to the rear switch circuit; The first uplink terminal is connected to the first uplink switching circuit; The second uplink terminal is connected to the second uplink switching circuit; The first downlink terminal is connected to the first downlink switching circuit; The second downlink terminal is connected to the second downlink switch circuit.

7. The wastewater treatment oil sludge scraper operating device according to claim 6, characterized in that, The common terminal of the receiver is connected to the live wire of the power supply; The power source is three-phase alternating current.

8. The wastewater treatment oil sludge scraper operating device according to claim 5, characterized in that, The heavy oil scraper assembly is equipped with a heavy oil scraper. The light oil scraper assembly is equipped with a light oil scraper. The heavy oil scraper motor is connected to the heavy oil scraper drive and can drive the heavy oil scraper to move up or down. The light oil scraper motor is connected to the light oil scraper drive and can drive the light oil scraper to move up or down.

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