Grid for domestic sewage sedimentation tank

Abstract

The utility model provides a grille for a domestic sewage settling pond, which is characterized by comprising an interception structure, an overturning structure and a cleaning structure, the interception structure is arranged on one side of the overturning structure, the interception structure is connected with the overturning structure in a welding manner, the overturning structure is arranged on one side of the cleaning structure, and the cleaning structure is connected with the overturning structure in a welding manner. The cleaning structure is improved, the cleaning structure composed of the solid waste collecting chamber, the storage box and the cleaning assembly can store solid waste in the collecting box, the solid waste is transferred through the collecting box, and the solid waste can be cleaned conveniently. And the cleaning assembly can push out residues adhering to the holes of the grille body, so that the holes of the grille body are prevented from being blocked, and it is guaranteed that sewage can smoothly pass through the grille body.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a bar screen for a sedimentation tank for domestic sewage. Background Technology

[0002] Bar screens play a crucial role in domestic wastewater sedimentation tanks. They are primarily used to trap and remove larger suspended solids and floating debris, such as twigs and plastic fragments, from the wastewater. This is critical for protecting downstream pumps and other treatment units, preventing these debris from clogging the pumps or interfering with the normal operation of subsequent treatment processes. For example, in some small-scale hospital wastewater treatment plants, the removal of large-diameter floating solids and some solids by bar screens reduces the load on subsequent biological treatment sections, while also protecting the pumps from clogging and creating a favorable operating environment for subsequent treatment equipment.

[0003] Existing patent CN107376444A discloses a wastewater treatment screen that is easy to clean. The screen includes a screen body with a horizontally extending top rod at its top. A fixed shaft is located at the center of the top rod and is rotatably connected to the top rod. A waste blowing box is located at the top of the top rod, and a movable shaft is fixed to the waste blowing box via two support arms. Motor mounting plates are installed at both ends of the bottom surface of the waste blowing box, and each mounting plate is equipped with a reduction motor. A second gear is located at one end of the output shaft of each reduction motor, and the second gear meshes with the first gears at both ends of the top rod. A fixed rod is located at each end of the waste blowing box, and a pull ring is fixedly connected to one end of a steel strand. The middle of the steel strand is wound around a pulley inside the waste blowing box. This invention allows waste on the screen surface to be poured horizontally onto the waste baffle below, replacing the manual cleaning process of the screen, and has a simple structure.

[0004] Problems identified with existing technology: Existing technology uses a blower to blow the garbage on the screen onto the garbage baffle. If the garbage in the sewage is oily and viscous, forming lumps that clog the screen holes, the blower alone cannot completely remove it, and external force is required to remove it. Existing technology uses a belt on a slide rail to move a cleaning brush along the slide rail to clean the garbage on the garbage baffle. When there is too much garbage, cleaning is laborious, and when there is too little garbage, the equipment works, increasing operating costs. Utility Model Content

[0005] In view of the above technical problems, the present invention provides a bar screen for a domestic sewage sedimentation tank, characterized in that it includes a interception structure, a flipping structure, and a cleaning structure. The interception structure is disposed on one side of the flipping structure and the interception structure is connected to the flipping structure by welding. The flipping structure is disposed on one side of the cleaning structure and the flipping structure is connected to the cleaning structure by welding.

[0006] The interception structure consists of a grid body, a baffle, and a position sensor. A baffle is provided on one side of the grid body, and the grid body and the baffle are welded together. A position sensor is provided on one side of the baffle, and the baffle and the position sensor are connected by threads and nuts.

[0007] The flipping structure consists of a motor and a rotating roller. The rotating roller is located on one side of the motor, and the output end of the motor is connected to the rotating roller.

[0008] The cleaning structure consists of a solid waste collection chamber, a storage box, and a cleaning component. The storage box is located at the bottom of the solid waste collection chamber, and the solid waste collection chamber is movably connected to the storage box. The cleaning component is located on one side of the solid waste collection chamber, and the solid waste collection chamber and the cleaning component are connected by welding. The solid waste collection chamber is equipped with a door at the top, and a pressure controller is installed on the door. The door can be opened and closed by the pressure controller. A slide is provided at the bottom of the solid waste collection chamber. A mezzanine is provided on one side of the solid waste collection chamber, and a groove is provided on one side of the mezzanine. The mezzanine can be used to hide components. The storage box is equipped with pulleys at the bottom. The cleaning component consists of a telescopic rod, a connecting plate, a connecting column, and a push plate. A connecting plate is provided on one side of the telescopic rod, and the telescopic rod and the connecting plate are connected by welding. A connecting column is provided on one side of the connecting plate, and the connecting plate and the connecting column are connected by welding. A push plate is provided on one side of the connecting column, and the connecting column and the push plate are connected by welding. The telescopic rod is an electric telescopic rod. There are several connecting columns and several push plates. The push plates are not connected to each other. One side of the push plate is coated with a non-adhesive coating.

[0009] The beneficial effects of this utility model are as follows:

[0010] This invention improves the interception and flipping structures. The interception structure, consisting of a grid body, baffles, and position sensors, and the flipping structure, consisting of a motor and rotating rollers, can intercept solid waste in domestic sewage. When the intercepted solid waste reaches a certain height, the position sensor is triggered to alarm, and the motor is rotated by the control components to flip the interception structure, thus discharging the intercepted solid waste. This avoids the accumulation of a large amount of solid waste that prevents sewage from passing through, and at the same time, it promptly cleans up the solid waste to prevent a large amount of solid waste from overflowing and causing inconvenience in discharging solid waste.

[0011] This invention improves the cleaning structure, which consists of a solid waste collection chamber, a storage box, and a cleaning component. The cleaning structure can store solid waste in the collection box and transfer it through the collection box. The cleaning component can push out the residues adhering to the holes of the bar screen body to prevent the holes of the bar screen body from being blocked, so as to ensure that sewage can pass through the bar screen body smoothly. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the bar screen used in the sedimentation tank for domestic sewage according to this utility model;

[0013] Figure 2 This is a schematic diagram showing the removal of the storage box for the screen used in the sedimentation tank of domestic sewage according to this utility model;

[0014] Figure 3 This is a schematic diagram showing the opening and closing of the screen door of the sedimentation tank for domestic sewage according to this utility model;

[0015] Figure 4 This is a schematic diagram illustrating the cleaning process of the screen in the domestic sewage sedimentation tank of this utility model;

[0016] Figure 5 This is a schematic diagram of the cleaning component of the screen in the domestic sewage sedimentation tank of this utility model.

[0017] As shown in the figure: 1 is the grid body; 2 is the baffle; 3 is the position sensor; 4 is the motor; 5 is the rotating roller; 6 is the solid waste collection chamber; 7 is the storage box; 8 is the telescopic rod; 9 is the push plate; 10 is the opening and closing door; 11 is the mezzanine. Detailed Implementation

[0018] Example 1

[0019] This utility model provides a bar screen for a domestic sewage sedimentation tank, characterized in that the interception structure consists of a bar screen body 1, a baffle 2, and a position sensor 3; the flipping structure consists of a motor 4 and a rotating roller 5; and the cleaning structure consists of a solid waste collection chamber 6, a storage box 7, and a cleaning component.

[0020] A baffle 2 is provided on one side of the grid body 1, and the grid body 1 and the baffle 2 are welded together. A position sensor 3 is provided on one side of the baffle 2, and the baffle 2 and the position sensor 3 are connected by threads and nuts. A rotating roller 5 is provided on one side of the motor 4, and the output end of the motor 4 is connected to the rotating roller 5. A storage box 7 is provided at the bottom of the solid waste collection chamber 6, and the solid waste collection chamber 6 is movably connected to the storage box 7. A cleaning component is provided on one side of the solid waste collection chamber 6, and the solid waste collection chamber 6 and the cleaning component are connected by welding.

[0021] Example 2

[0022] When using this utility model, first connect each component in sequence according to the connection order, and install the device at the inlet of the domestic sewage sedimentation tank. When domestic sewage flows through this utility model, it first flows through the screen body 1. At this time, larger suspended and floating objects in the domestic sewage, such as branches and plastic pieces, are trapped on the screen body 1, and the sewage passes through the screen body 1. As solid waste remains, the residue on the screen body 1 accumulates and reaches a certain height. At this time, the position sensor 3 set on the baffle 2 sends a signal, and the discharge of domestic sewage is stopped. The motor 4 then drives... The rotating roller 5 rotates, thereby driving the grid body 1 on one side of the rotating roller 5 to rotate. When the grid body 1 rotates to a certain angle, the switch door 10 is opened, and the solid waste in the grid body 1 falls into the storage box 7 through the switch door 10. The solid waste is then taken out through the storage box 7 and transferred to a special solid waste treatment device. After the grid body 1 has been used for a period of time, the grid body 1 is rotated to the position of the cleaning component. At this time, the baffle 2 is hidden in the interlayer 11, the telescopic rod 8 extends out from the interlayer 11 and extends, and the push plate 9 pushes out the residue in the holes of the grid body 1 to prevent the grid from being blocked.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. The various components mentioned in this invention are common technologies in the existing field. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A bar screen for a domestic sewage sedimentation tank, characterized in that... It includes a trapping structure, a flipping structure, and a cleaning structure. The trapping structure is located on one side of the flipping structure, and the flipping structure is located on one side of the cleaning structure. The interception structure is characterized by comprising a grid body, a baffle, and a position sensor. A baffle is provided on one side of the grid body, and the grid body and the baffle are welded together. A position sensor is provided on one side of the baffle, and the baffle and the position sensor are connected by threads and nuts. The flipping structure is characterized by comprising a motor and a rotating roller, wherein the rotating roller is provided on one side of the motor, and the output end of the motor is connected to the rotating roller.

2. A bar screen for a domestic sewage sedimentation tank according to claim 1, characterized in that, The cleaning structure consists of a solid waste collection chamber, a storage box, and a cleaning component. The storage box is located at the bottom of the solid waste collection chamber, and the solid waste collection chamber is movably connected to the storage box. The cleaning component is located on one side of the solid waste collection chamber, and the solid waste collection chamber and the cleaning component are connected by welding.

3. A bar screen for a domestic sewage sedimentation tank according to claim 1, characterized in that, The interception structure and the flipping structure are connected by welding, and the flipping structure and the cleaning structure are connected by welding.

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