A water conservancy project dredging sludge screening pretreatment device

Abstract

The utility model discloses a water conservancy project dredging sludge screening pretreatment device relates to sludge treatment equipment technical field, including the treatment tank that the inside is provided with the treatment groove of semicircular cylinder type, the inside of treatment groove is provided with cleaning mechanism, and cleaning mechanism includes driving motor, rotary cylinder and multiple sets of elastic cleaning comb, and multiple sets of elastic cleaning comb circumferentially equidistance sets up on rotary cylinder, and along the radius direction of rotary cylinder sliding installation is in the inside of rotary cylinder, and the side of treatment tank is installed with unloading scraper, and the upper end of unloading scraper and the surface of rotary cylinder slidingly fits, and the axial side wall of treatment groove is installed with the guide block that is compatible with elastic cleaning comb, the utility model discloses the cooperation setting of rotary cylinder, unloading scraper, guide block and multiple sets of elastic cleaning comb can utilize elastic cleaning comb and fish up the solid garbage in sewage, when elastic cleaning comb rotates to the top position of unloading scraper, and solid garbage falls along unloading scraper, realizes the effective separation of solid garbage in sewage.

Description

Technical Field

[0001] This utility model relates to the technical field of sludge treatment equipment, and in particular to a screening and pretreatment device for dredging sludge from water conservancy projects. Background Technology

[0002] River dredging generally refers to the management of river channels and is a type of water conservancy project. Using mechanical equipment, silt deposited on the riverbed is agitated into a turbid, watery substance and carried away by the river, thus clearing blockages. However, because river sludge contains a significant amount of solid waste and harmful substances, it needs to be screened and pre-treated to remove these contaminants.

[0003] Regarding sludge screening and pretreatment devices, a search reveals, for example, a river dredging sludge screening and pretreatment system and process provided by patent publication number CN118206256A, which includes: an inclined conveyor belt, the inclined conveyor belt being inclined and its surface being hollowed out, the inclined conveyor belt filtering large particles of stone in the river sludge onto the upper side of the inclined conveyor belt, allowing the sludge to settle; a lower receiving conveyor belt, the lower receiving conveyor belt being horizontal and located below the inclined conveyor belt, the frame of the inclined conveyor belt and the frame of the lower receiving conveyor belt being connected by a support plate, the sludge filtered and falling on the inclined conveyor belt being transported from left to right. A disinfection spraying device is used to spray disinfectant onto the falling sludge, allowing the sludge to be disinfected by the spraying of disinfectant. The structure within the box, including the housing and ultraviolet germicidal lamps, is used to sterilize the filtered particles such as stones inside the housing.

[0004] Based on the above search and analysis of existing technologies, it was found that existing treatment devices similar to those disclosed above are not effective at separating solid waste from sludge, resulting in a high proportion of solid waste in the subsequently discharged sludge. Therefore, a pretreatment device for screening sludge from water conservancy project dredging is proposed to improve the above-mentioned problems. Utility Model Content

[0005] The purpose of this application is to provide a screening and pretreatment device for dredging sludge in water conservancy projects to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this application provides the following technical solution: a screening and pretreatment device for dredging sludge in water conservancy projects, comprising a treatment box with a sewage pipe installed at the bottom, a semi-cylindrical treatment tank provided inside the treatment box, and a cleaning mechanism provided inside the treatment tank.

[0007] The cleaning mechanism includes a drive motor, a rotating drum, and multiple sets of elastic cleaning combs. The axis of the rotating drum coincides with the axis of the processing tank. The drive motor is installed on the side of the processing box, and the output end of the drive motor is coaxially fixed with the rotating drum. Multiple sets of elastic cleaning combs are equidistantly arranged on the rotating drum and are slidably installed on the inner side of the rotating drum along the radial direction of the rotating drum.

[0008] A discharge scraper is installed on one side of the processing box. The upper end of the discharge scraper slides against the surface of the rotating drum. A guide block adapted to the elastic cleaning comb is installed on the axial side wall of the processing tank, and the axis of the guide block does not intersect with the axis of the rotating drum.

[0009] As the rotating drum rotates to the top of the unloading scraper, the elastic cleaning comb is completely retracted into the inner side of the rotating drum under the guidance of the guide block.

[0010] In the aforementioned sludge screening and pretreatment device for dredging in water conservancy projects, through the coordinated arrangement of a rotating drum, a discharge scraper, a guide block, and multiple sets of elastic cleaning combs, the rotating drum, along with the elastic cleaning combs, scoops up solid waste from the sewage during its rotation. When the elastic cleaning combs rotate to the top position of the discharge scraper, they are completely contained inside the rotating drum under the guidance of the guide block, while the solid waste is intercepted on the outside by the rotating drum and rolls down along the discharge scraper, thus achieving effective separation of solid waste from the sewage.

[0011] As a further supplement to this solution, the flexible cleaning comb includes a connecting rod, a compression spring, and multiple cleaning rods;

[0012] The connecting rod and the rotating cylinder are aligned in the same direction. Multiple impurity removal rods are axially fixed at equal intervals to the side end of the connecting rod. The inner side of the rotating cylinder is provided with a sliding groove that matches the connecting rod. The connecting rod is connected to the inner side of the sliding groove by a compression spring. Both ends of the connecting rod extend to the outer side of the rotating cylinder and are matched with the guide block. The side end of the rotating cylinder is provided with a sliding hole that communicates with the sliding groove and is slidably matched with the impurity removal rod.

[0013] As a further supplement to this solution, a rotating sleeve is coaxially mounted on the end of the connecting rod located on the outside of the rotating cylinder.

[0014] As a further supplement to this solution, the axial inner wall of the treatment tank is provided with a groove that is compatible with the rotating cylinder.

[0015] As a further supplement to this solution, multiple vibrating plates are fixed at equal intervals along the inclined surface of the lower end of the unloading scraper. All the vibrating plates are located inside the processing tank, and the length of the multiple vibrating plates increases sequentially from top to bottom.

[0016] As a further supplement to this solution, baffles are integrally provided on both sides of the unloading scraper parallel to its inclined direction, and a chamfer is provided at the upper angle between the baffle and the unloading scraper.

[0017] In summary, the technical effects and advantages of this utility model are as follows:

[0018] 1. In this utility model, through the coordinated arrangement of a rotating drum, a discharge scraper, a guide block, and multiple sets of elastic cleaning combs, the rotating drum, carrying the elastic cleaning combs, rotates in the treatment tank. Under the elastic force of the compression spring, the connecting rod causes multiple cleaning rods to extend to the outside of the rotating drum. During the rotation, the multiple cleaning rods scoop up solid waste from the sewage. When the elastic cleaning comb rotates to the top position of the discharge scraper, the connecting rod, guided by the guide block, completely retracts the multiple cleaning rods into the inside of the rotating drum, while the solid waste is intercepted on the outside by the rotating drum and rolls down along the discharge scraper, thus achieving effective separation of solid waste from the sewage.

[0019] 2. In this utility model, multiple vibrating plates are fixed at equal intervals along the inclined surface of the lower end of the unloading scraper. When the cleaning rod rotates with the rotating cylinder to the lower side of the unloading scraper, the connecting rod disengages from the guide block and is ejected outward under the elastic force of the compression spring. The ejected cleaning rod then strikes multiple vibrating plates in sequence during its rotation, causing the vibrating plates to vibrate with the unloading scraper, thereby allowing solid waste to roll smoothly off the unloading scraper. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure in this embodiment;

[0022] Figure 2 This is a schematic diagram of the cross-sectional structure in this embodiment;

[0023] Figure 3 This is a schematic diagram of the cleaning mechanism in this embodiment;

[0024] Figure 4 This is a schematic diagram of the elastic cleaning comb in this embodiment;

[0025] Figure 5 This is a schematic diagram of the structure of the processing box in this embodiment;

[0026] Figure 6 for Figure 5 A magnified structural diagram of point A in the middle.

[0027] In the diagram: 1. Processing box; 101. Processing trough; 102. Groove; 2. Rotating cylinder; 201. Slide groove; 202. Slide hole; 3. Impurity removal rod; 4. Drive motor; 5. Connecting rod; 51. Rotating sleeve; 6. Compression spring; 7. Discharge scraper; 71. Baffle; 701. Chamfer; 8. Guide block; 9. Vibrating plate; 10. Drain pipe. Detailed Implementation

[0028] 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.

[0029] Example: Reference Figure 1-6 The device shown is a screening and pretreatment device for dredging sludge in water conservancy projects. The device includes a treatment box 1 with a sewage pipe 10 installed at the bottom, and a semi-cylindrical treatment tank 101 is provided on the inner side of the treatment box 1.

[0030] The inner side of the processing tank 101 is equipped with a cleaning mechanism, which includes a drive motor 4, a rotating cylinder 2, and multiple sets of elastic cleaning combs. The drive motor 4 is a conventional electric motor, such as a TZ155X020 motor, and is electrically connected to the controller using conventional technology. The axis of the rotating cylinder 2 coincides with the axis of the processing tank 101. The drive motor 4 is installed on the side of the processing tank 1, and the output end of the drive motor 4 is coaxially fixed with the rotating cylinder 2. Multiple sets of elastic cleaning combs are circumferentially equidistantly arranged on the rotating cylinder 2 and are slidably installed on the inner side of the rotating cylinder 2 along the radial direction of the rotating cylinder 2.

[0031] Regarding the aforementioned flexible cleaning comb, specifically, as follows: Figure 2 , Figure 3 and Figure 4 As shown, the elastic cleaning comb includes a connecting rod 5, a compression spring 6, and multiple cleaning rods 3. The connecting rod 5 is arranged in the same direction as the axis of the rotating cylinder 2. The multiple cleaning rods 3 are axially fixed at equal intervals to the side ends of the connecting rod 5. The inner side of the rotating cylinder 2 is provided with a sliding groove 201 that matches the connecting rod 5. The connecting rod 5 is connected to the inner side of the sliding groove 201 through the compression spring 6. Both ends of the connecting rod 5 extend to the outer side of the rotating cylinder 2 and are matched with the guide block 8. The side end of the rotating cylinder 2 is provided with a sliding hole 202 that communicates with the sliding groove 201 and is slidably matched with the cleaning rods 3.

[0032] The processing box 1 is equipped with a discharge scraper 7 on one side. The upper end of the discharge scraper 7 slides and fits against the surface of the rotating cylinder 2. The axial side wall of the processing tank 101 is equipped with a guide block 8 that is compatible with the elastic cleaning comb. The axis of the guide block 8 does not intersect with the axis of the rotating cylinder 2. When the elastic cleaning comb rotates with the rotating cylinder 2 to the top position of the discharge scraper 7, the elastic cleaning comb is completely housed inside the rotating cylinder 2 under the guidance of the guide block 8.

[0033] Based on the above-mentioned coordinated arrangement of the rotating drum 2, the unloading scraper 7, the guide block 8, and multiple sets of elastic cleaning combs, as the rotating drum 2 rotates in the treatment tank 101 with the elastic cleaning combs, the connecting rod 5, under the elastic force of the compression spring 6, causes multiple impurity removal rods 3 to extend to the outside of the rotating drum 2. During the rotation, the multiple impurity removal rods 3 scoop up solid waste from the sewage. When the elastic cleaning comb rotates to the top position of the unloading scraper 7, the connecting rod 5, guided by the guide block 8, completely retracts the multiple impurity removal rods 3 into the inside of the rotating drum 2, while the solid waste is intercepted on the outside by the rotating drum 2 and rolls down along the unloading scraper 7, thus achieving effective separation of solid waste from the sewage.

[0034] The connecting rod 5 is coaxially mounted with a rotating sleeve 51 at the end located on the outside of the rotating cylinder 2. The rotating sleeve 51 and the guide block 8 are in rolling contact, which can reduce the friction when they are in contact, thereby reducing the rotational resistance of the rotating cylinder 2.

[0035] To prevent solid waste in the sewage from entering the chute 201 from the side of the rotating cylinder 2 and thus obstructing the movement of the connecting rod 5, a groove 102 adapted to the rotating cylinder 2 is provided on the axial inner wall of the treatment tank 101.

[0036] In addition, in order to ensure that solid waste can roll smoothly off the unloading scraper 7, multiple vibrating plates 9 are fixed at equal intervals along the inclined surface of the lower end of the unloading scraper 7. The multiple vibrating plates 9 are all located inside the processing tank 101, and the length of the multiple vibrating plates 9 increases sequentially from top to bottom. When the cleaning rod 3 rotates with the rotating cylinder 2 to the lower side of the unloading scraper 7, the connecting rod 5 disengages from the guide block 8 and is ejected outward with the elastic force of the compression spring 6. The cleaning rod 3 ejected outward strikes the multiple vibrating plates 9 in sequence during its rotation, causing the vibrating plates 9 to vibrate with the unloading scraper 7, thereby allowing the solid waste to roll smoothly off the unloading scraper 7.

[0037] To prevent solid waste on the unloading scraper 7 from rolling off the side, this solution integrates baffles 71 on both sides of the unloading scraper 7 parallel to its inclined direction, and provides a chamfer 701 at the upper angle between the baffle 71 and the unloading scraper 7. The chamfer 701 can reduce the amount of solid waste remaining on the unloading scraper 7.

[0038] In addition, considering that the elasticity of the compression spring 6 deteriorates after long-term use, making it difficult for the cleaning rod 3 to adhere to the treatment tank 101, a magnetic block (not shown in the figure) can be set at the end of the cleaning rod 3 near the treatment tank 101, and a ferromagnetic material (not shown in the figure), such as a stainless steel layer, can be fixed on the inner wall of the treatment tank 101. The attraction between the magnetic block and the stainless steel layer allows the cleaning rod 3 to adhere to the inner wall of the treatment tank 101, thereby ensuring the stable retrieval effect of the cleaning rod 3 on solid waste.

[0039] The working principle of this utility model is as follows: wastewater, which is a mixture of sludge and water, is fed into the treatment tank 101, and appropriate chemical treatment agents are added according to the actual pollution situation of the sludge to treat the wastewater.

[0040] During the process of the rotating drum 2 driven by the drive motor 4 rotating in the treatment tank 101 with the elastic cleaning comb, the connecting rod 5 causes multiple cleaning rods 3 to extend to the outside of the rotating drum 2 under the elastic force of the compression spring 6. The multiple cleaning rods 3 pick up solid waste in the sewage during the rotation. When the elastic cleaning comb rotates to the top position of the unloading scraper 7, the connecting rod 5, guided by the guide block 8, completely retracts the multiple cleaning rods 3 into the inside of the rotating drum 2, while the solid waste is intercepted on the outside by the rotating drum 2.

[0041] As the cleaning rod 3 continues to rotate with the rotating drum 2 to the underside of the unloading scraper 7, the connecting rod 5 disengages from the guide block 8 and, under the elastic force of the compression spring 6, ejects the cleaning rod 3 outward. The ejected cleaning rod 3 then strikes multiple vibrating plates 9 in sequence during its rotation, causing the vibrating plates 9 to vibrate along with the unloading scraper 7, thereby allowing solid waste to roll smoothly off the unloading scraper 7.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pretreatment device for screening sludge from dredging in water conservancy projects, comprising a treatment box (1) with a drain pipe (10) installed at the bottom, characterized in that, The processing box (1) is provided with a semi-cylindrical processing tank (101) on its inner side, and a cleaning mechanism is provided on the inner side of the processing tank (101). The cleaning mechanism includes a drive motor (4), a rotating cylinder (2) and multiple sets of elastic cleaning combs. The axis of the rotating cylinder (2) coincides with the axis of the processing tank (101). The drive motor (4) is installed on the side of the processing box (1), and the output end of the drive motor (4) is coaxially fixed with the rotating cylinder (2). Multiple sets of elastic cleaning combs are circumferentially equidistantly arranged on the rotating cylinder (2) and are slidably installed on the inner side of the rotating cylinder (2) along the radial direction of the rotating cylinder (2). A discharge scraper (7) is installed on one side of the processing box (1). The upper end of the discharge scraper (7) slides against the surface of the rotating cylinder (2). A guide block (8) adapted to the elastic cleaning comb is installed on the axial side wall of the processing tank (101), and the axis of the guide block (8) does not intersect with the axis of the rotating cylinder (2). When the elastic cleaning comb rotates to the top position of the unloading scraper (7) as the rotating cylinder (2) rotates, the elastic cleaning comb is completely housed inside the rotating cylinder (2) under the guidance of the guide block (8).

2. The water conservancy project dredging sludge screening and pretreatment device according to claim 1, characterized in that: The elastic cleaning comb includes a connecting rod (5), a compression spring (6), and multiple cleaning rods (3); The connecting rod (5) is arranged in the same direction as the axis of the rotating cylinder (2). A plurality of the impurity removal rods (3) are axially fixed at equal intervals to the side end of the connecting rod (5). The inner side of the rotating cylinder (2) is provided with a sliding groove (201) that is adapted to the connecting rod (5). The connecting rod (5) is connected to the inner side of the sliding groove (201) by a compression spring (6). Both ends of the connecting rod (5) extend to the outer side of the rotating cylinder (2) and are adapted to the guide block (8). The side end of the rotating cylinder (2) is provided with a sliding hole (202) that communicates with the sliding groove (201) and is slidably adapted to the impurity removal rods (3).

3. The water conservancy project dredging sludge screening and pretreatment device according to claim 2, characterized in that: The connecting rod (5) is coaxially mounted with a rotating sleeve (51) at the end located outside the rotating cylinder (2).

4. The water conservancy project dredging sludge screening and pretreatment device according to claim 2, characterized in that: The processing tank (101) has a groove (102) on its axial inner wall that is adapted to the rotating cylinder (2).

5. A pretreatment device for screening sludge from dredging in water conservancy projects according to claim 2, characterized in that: The lower end of the unloading scraper (7) is fixed with multiple vibrating plates (9) at equal intervals along its inclined surface. The multiple vibrating plates (9) are all located inside the processing tank (101), and the length of the multiple vibrating plates (9) increases sequentially from top to bottom.

6. The water conservancy project dredging sludge screening and pretreatment device according to claim 1, characterized in that: The unloading scraper (7) has baffles (71) integrated on both sides parallel to its inclined direction, and a chamfer (701) is provided at the upper angle between the baffle (71) and the unloading scraper (7).

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