Coarse grid impurity removal device

Abstract

The utility model relates to a kind of coarse grid impurity removal devices, including the impurity removal hoist of inclination arrangement, the impurity removal hoist includes rack, lifting slide plate is arranged in the middle of rack, the annular conveying chain is equipped in rack both sides, and several lifting cross bars are connected with interval distribution along ring direction between two side conveying chains, lifting cross bar is interval distribution with lifting tines on it;Impurity removal hoist discharge end below is equipped with material receiving frame, and the material pushing cross bar is set to the bottom side of impurity removal hoist discharge end, material pushing cross bar is interval distribution with material pushing harrow nail on it, material pushing harrow nail is staggered with the lifting tines of lifting cross bar in horizontal position, and material pushing harrow nail is inserted to the middle of adjacent two lifting tines on lifting cross bar in length direction.The utility model coarse grid impurity removal device simple structure, reasonable in design, convenient to use, reduce sundry return sewage pool, improve impurity removal effect, and need not manual operation, reduce labor intensity.

Description

Technical Field

[0001] This utility model relates to the field of sewage treatment equipment, and in particular to a coarse screen impurity removal device. Background Technology

[0002] Coarse screens are used to intercept floating debris or large particles in sewage, and then a coarse screen cleaning machine is used to remove the intercepted debris.

[0003] The existing coarse screen cleaning machine has a rake tooth that lifts up debris. However, when the rake tooth reaches the highest position, the debris does not fall off completely. Some debris gets stuck on the rake tooth and falls back into the sewage tank with it, affecting the removal effect. Manual cleaning of the debris on the rake tooth is required, which is inefficient and labor-intensive. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a coarse screen removal device that is simple in structure and easy to use, thereby reducing the return of debris to the sewage tank and improving the removal effect.

[0005] This utility model is achieved using the following solution: a coarse screen impurity removal device, comprising an inclined impurity removal elevator, the impurity removal elevator including a frame, an lifting slide plate in the middle of the frame, and annular conveyor chains on both sides of the frame, with a plurality of lifting crossbars spaced apart along the circumferential direction connected between the two conveyor chains, and lifting rake teeth spaced apart on the lifting crossbars; a receiving frame is provided below the discharge end of the impurity removal elevator, and a material-pushing crossbar is provided on the bottom side of the discharge end of the impurity removal elevator, with material-pushing rakes spaced apart on the material-pushing crossbars, the material-pushing rakes being offset from the lifting rake teeth of the lifting crossbars in the lateral position, and the material-pushing rakes extending into the middle of two adjacent lifting rake teeth on the lifting crossbars in the length direction.

[0006] Furthermore, a horizontally placed high-pressure water pipe is provided on the bottom side of the discharge end of the impurity removal elevator, and several nozzles are spaced apart on the high-pressure water pipe to wash away the impurities on the lifting rake teeth.

[0007] Furthermore, the lifting section of the conveyor chain is located above the lifting slide plate and close to the upper surface of the lifting slide plate, the return section of the conveyor chain is located below the lifting slide plate, and both ends of the lifting slide plate are provided with bent portions that bend downwards at 180° parallel to the path of the conveyor chain.

[0008] Furthermore, the frame of the impurity removal elevator is equipped with a protective cover at the discharge end, and a discharge port is provided on the lower side of the protective cover.

[0009] Furthermore, the bottom of the receiving frame is provided with drainage holes.

[0010] Furthermore, driven sprockets are provided on both sides of the frame at the feed end of the impurity removal elevator, and the driven sprockets on both sides are connected together by a driven shaft; driven sprockets are provided on both sides of the frame at the discharge end of the impurity removal elevator, and the driven sprockets on both sides are connected together by a driven shaft; the two ends of the conveying chain are fitted onto the driven sprockets and driven sprockets on the same side.

[0011] Furthermore, a geared motor is installed above the frame at the discharge end of the impurity removal elevator, and the power output end of the geared motor is connected to one end of the main shaft via a pair of gears and a rack.

[0012] Compared with the prior art, the present invention has the following advantages: the coarse screen impurity removal device of the present invention has a simple structure, reasonable design, and is easy to use. It reduces the return of impurities to the sewage tank, improves the impurity removal effect, and requires no manual operation, which is highly efficient and reduces labor intensity.

[0013] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below through specific embodiments and related drawings. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the lifting rake teeth and the material-pulling rake nail working together in an embodiment of this utility model; The following are the labels in the diagram: 100-Impurity removal elevator, 110-Frame, 120-Lifting slide plate, 121-Bending section, 130-Conveyor chain, 131-Lifting crossbar, 132-Lifting rake teeth, 140-Material guide crossbar, 141-Material guide rake nail, 150-High-pressure water pipe, 151-Nozzle, 160-Protective cover, 170-Driven sprocket, 180-Drive sprocket, 190-Gear motor, 200-Receiving frame. Detailed Implementation

[0015] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0016] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0017] like Figures 1-2 As shown, a coarse screen impurity removal device includes an inclined impurity removal elevator 100. The impurity removal elevator 100 includes a frame 110, a lifting slide plate 120 in the middle of the frame, and annular conveyor chains 130 on both sides of the frame. Several lifting crossbars 131 distributed circumferentially are connected between the two conveyor chains. Lifting rake teeth 132 are distributed at intervals on the lifting crossbars. A receiving frame 200 is provided below the discharge end of the impurity removal elevator. A material-pushing crossbar 140 is provided on the bottom side of the discharge end of the impurity removal elevator. Material-pushing rake nails 141 are distributed at intervals on the material-pushing crossbars. The material-pushing rake nails are offset from the lifting rake teeth of the lifting crossbars in the lateral position, and extend into the middle of two adjacent lifting rake teeth on the lifting crossbars in the length direction. This coarse screen cleaning device uses a rake 141 to remove material from the returning lifting rake teeth 132. When the lifting rake teeth 132 pass the location of the rake 141, the rake 141 can extend between two adjacent lifting rake teeth to rake off the debris hanging on the lifting rake teeth 132, reducing the amount of debris returning to the sewage tank and improving the cleaning effect. Moreover, it has a simple structure, requires no manual operation, is easy to use, and is highly efficient.

[0018] In this embodiment, since the rake nail 141 can only rake off larger debris, in order to further improve the impurity removal effect, a horizontal high-pressure water pipe 150 is provided on the bottom side of the discharge end of the impurity removal elevator 100. Several nozzles 151 are distributed at intervals on the high-pressure water pipe to wash off the debris on the rake teeth. The high-pressure water is used to wash the rake teeth and clean the smaller debris attached to the rake teeth.

[0019] In this embodiment, the lifting section of the conveyor chain is located above the lifting slide plate and close to its upper surface, while the return section is located below the lifting slide plate. Both ends of the lifting slide plate are provided with bent portions 121 extending downwards at a 180° angle parallel to the conveyor chain path. When the lifting rake teeth 132 move upwards, they can push more debris upwards on the lifting slide plate, and the debris falls into the receiving frame when it reaches its highest position.

[0020] In this embodiment, the frame of the impurity removal elevator is provided with a protective cover 160 at the discharge end, and a discharge port is provided on the lower side of the protective cover.

[0021] In this embodiment, the bottom of the receiving frame is provided with drainage holes to prevent sewage and water sprayed from the high-pressure water pipe from accumulating in the receiving frame.

[0022] In this embodiment, driven sprockets 170 are provided on both sides of the frame at the feed end of the impurity removal elevator, and the driven sprockets on both sides are connected together by a driven shaft; driven sprockets 180 are provided on both sides of the frame at the discharge end of the impurity removal elevator, and the driven sprockets on both sides are connected together by a driven shaft; the two ends of the conveying chain are fitted onto the driven sprockets and driven sprockets on the same side.

[0023] In this embodiment, a geared motor 190 is installed above the frame at the discharge end of the impurity removal elevator. The power output end of the geared motor is connected to one end of the main shaft via a pair of gears and a rack.

[0024] Unless otherwise stated, if any of the technical solutions disclosed in this utility model discloses a numerical range, then the disclosed numerical range is a preferred numerical range. Any person skilled in the art should understand that the preferred numerical range is merely one among many feasible numerical values ​​that has a more obvious or representative technical effect. Because there are many numerical values, it is impossible to list them all. Therefore, this utility model discloses only some numerical values ​​to illustrate the technical solutions of this utility model. Furthermore, the numerical values ​​listed above should not constitute a limitation on the scope of protection of this utility model.

[0025] If this utility model discloses or relates to mutually fixedly connected parts or structural components, then unless otherwise stated, a fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws), or a non-detachable fixed connection (e.g., riveting, welding). Of course, mutually fixed connections can also be replaced by an integral structure (e.g., manufactured by integral molding using a casting process) (except where it is obviously impossible to use an integral molding process).

[0026] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in this utility model above include states or shapes that are similar to, close to, or approximate with them.

[0027] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.

[0028] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A coarse screen impurity removal device, characterized in that: The impurity removal elevator includes an inclined lifting machine. The elevator includes a frame with a lifting slide plate in the middle. Circular conveyor chains are provided on both sides of the frame, and several lifting crossbars are connected between the two conveyor chains at intervals along the circumference. Lifting rake teeth are distributed at intervals on the lifting crossbars. A receiving frame is provided below the discharge end of the impurity removal elevator, and a material-distributing crossbar is provided on the bottom side of the discharge end. Distributing rake nails are distributed at intervals on the distributing crossbar. The distributing rake nails are offset from the lifting rake teeth of the lifting crossbars in the lateral position, and extend into the middle of two adjacent lifting rake teeth on the lifting crossbar in the length direction.

2. The coarse screen impurity removal device according to claim 1, characterized in that: A horizontally placed high-pressure water pipe is installed on the bottom side of the discharge end of the impurity removal elevator, and several nozzles are spaced apart on the high-pressure water pipe to wash away the debris on the lifting rake teeth.

3. The coarse screen impurity removal device according to claim 1, characterized in that: The lifting section of the conveyor chain is located above the lifting slide plate and close to the upper surface of the lifting slide plate, while the return section of the conveyor chain is located below the lifting slide plate. Both ends of the lifting slide plate are provided with bent portions that extend downwards at 180° parallel to the path of the conveyor chain.

4. The coarse screen impurity removal device according to claim 1, characterized in that: The frame of the impurity removal elevator is equipped with a protective cover at the discharge end, and a discharge port is provided on the lower side of the protective cover.

5. The coarse screen impurity removal device according to claim 1, characterized in that: The bottom of the receiving frame has drainage holes.

6. The coarse screen impurity removal device according to claim 1, characterized in that: The impurity removal elevator has driven sprockets on both sides of the frame at the feed end, and the driven sprockets on both sides are connected together by a driven shaft; the impurity removal elevator has driven sprockets on both sides of the frame at the discharge end, and the driven sprockets on both sides are connected together by a driven shaft; the two ends of the conveyor chain are fitted onto the driven sprockets and driven sprockets on the same side.

7. The coarse screen impurity removal device according to claim 6, characterized in that: A geared motor is installed above the frame at the discharge end of the impurity removal elevator. The power output end of the geared motor is connected to one end of the main shaft via a pair of gears and a rack.

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