Pool bottom desilting equipment and sedimentation tank

Abstract

The utility model discloses pool bottom desilting equipment and a sedimentation pool, and belongs to the field of sedimentation pool cleaning, the pool bottom desilting equipment comprises a scraper blade and a scraper blade driving mechanism for controlling the scraper blade to move, the scraper blade driving mechanism is installed on the outer side of the sedimentation pool and comprises a linear conveying assembly and a power device, and the linear conveying assembly is connected with the power device. The scraping plate is mounted at the output end of the linear conveying assembly and extends to the bottom of the sedimentation tank, and the scraping plate is driven by the scraping plate driving mechanism to do reciprocating linear motion along the sedimentation tank. The tank bottom can be completely covered and continuously scraped and cleaned, and meanwhile the problem that the service life is affected due to the fact that the driving assembly is located in the tank is solved.

Description

Technical Field

[0001] The utility model relates to the field of cleaning of sedimentation tanks, in particular to a tank bottom desilting device and a sedimentation tank. Background Art

[0002] Sludge settling tanks, sewage sedimentation tanks, flushing tanks, and other collection tanks for solid-liquid mixtures serve as collection, transfer, transport, and reaction vessels for these mixtures. Slurry pumps are installed at the bottom of these tanks to pump and discharge the mixture. Solids such as coal slime, sludge, and slag easily settle at the bottom of these tanks, making them difficult to remove with sewage pumps. Over time, these solids form and become compacted, making them difficult to clean.

[0003] Currently, equipment used for cleaning the bottom of sedimentation tanks includes bucket elevators, screw conveyors, and scraper systems, which mix or directly discharge the sediment. Bucket elevators require dedicated personnel to operate and require a large accumulation of material before they can be used. The material also requires specialized vehicles to transport it, making it economically inefficient. Screw conveyors also require dedicated personnel to operate, cannot fully cover the extraction area, and require a subsequent conveying method. Utility Model Content

[0004] To this end, the utility model proposes a pool bottom desilting device, which can achieve full coverage of the pool bottom and continuous scraping and cleaning, and solve the problem of silt and slag accumulation at the bottom of the sedimentation tank.

[0005] In view of the above technical problems, the present invention provides the following technical solutions:

[0006] A pool bottom desilting equipment includes: a scraper and a scraper driving mechanism for controlling the movement of the scraper, the scraper driving mechanism is installed on the outside of the sedimentation tank, and includes a linear conveying component and a power device, the scraper is installed at the output end of the linear conveying component and extends to the bottom of the sedimentation tank, and the scraper is driven by the scraper driving mechanism to reciprocate linearly along the sedimentation tank.

[0007] In some embodiments of the present invention, the linear conveying assembly includes two sprockets arranged at intervals and a chain connected to the sprockets for transmission, the upper side of the scraper is connected to the pin shaft of the chain, and the power device is a rotating motor that controls the rotation of one of the sprockets.

[0008] In some embodiments of the present invention, the scraper driving mechanism further includes two transmission sleeves for supporting the sprockets, the two sides of each transmission sleeve are fixedly connected to the sprockets, and the output end of the power device is transmission-connected to one of the transmission sleeves.

[0009] In some embodiments of the present invention, the scraper drive mechanism is installed on the upper side of the sedimentation tank, wherein the transmission sleeve is installed on the two opposite walls of the sedimentation tank through support members located on both sides thereof, and the extension direction of the transmission sleeve is parallel to the width direction of the sedimentation tank.

[0010] In some embodiments of the present invention, the scraper includes a support body and a scraper plate swingably connected to the support body, the upper side of the support body is fixedly connected to the pin shaft of the chain, and the scraper plate is connected to the lower side of the support body through a pivot.

[0011] In some embodiments of the present invention, an elastic member is further included between the support body and the scraper plate. In an initial state, the elastic member acts on the scraper plate to keep it in a vertical state.

[0012] In some embodiments of the present invention, the scraper reciprocates along the length direction of the sedimentation tank, and the length of the scraper covers the width of the sedimentation tank.

[0013] In some embodiments of the present invention, the supporting body is formed as an integral plate body whose length matches the width of the sedimentation tank, and the scraper plate is formed as an integral plate body whose length matches the width of the sedimentation tank.

[0014] In some embodiments of the present invention, the supporting body is formed as a row of comb-toothed plates, which includes several comb-toothed plates and a connecting portion that connects the comb-toothed plates into one. Several scraper plates are provided, which are respectively connected to the lower side of the comb-toothed plates through a pivot.

[0015] The utility model also provides a sedimentation tank, including the above-mentioned tank bottom dredging equipment, a pump pit is provided in a partial area of ​​the bottom of the sedimentation tank, a slurry pump for sucking sediment is provided in the pump pit, and the scraper moves back and forth linearly along the area of ​​the sedimentation tank located above the pump pit to transport the sediment into the pump pit.

[0016] The technical solution of the utility model has the following technical effects compared with the existing technology:

[0017] The pool bottom desilting equipment provided by the utility model utilizes a scraper drive mechanism to drive a scraper to perform a reciprocating linear scraping operation on the sedimentation tank, thereby cleaning solid sediment from the bottom of the sedimentation tank. This achieves full coverage and continuous scraping and cleaning of the pool bottom, preventing sediment from becoming compacted after deposition. Furthermore, since the scraper drive mechanism is entirely located outside the sedimentation tank, it is easy to maintain and replace, avoiding the problem of a shorter service life caused by clogging caused by solid sediment when located inside the sedimentation tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, which will help to understand the objects and advantages of the present invention.

[0019] Figure 1 This is a structural diagram of a specific implementation of the pool bottom desilting equipment of the utility model;

[0020] Figure 2 This is another structural schematic diagram of a specific embodiment of the pool bottom desilting equipment of the utility model;

[0021] Figure 3 This is another structural schematic diagram of a specific embodiment of the pool bottom desilting equipment of the utility model;

[0022] Figure 4 This is a schematic diagram of a specific embodiment of a scraper in the pool bottom desilting equipment of the present invention;

[0023] Figure 5 This is a schematic diagram of a specific implementation of the support body of the scraper in the pool of the utility model. DETAILED DESCRIPTION

[0024] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0027] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0028] like Figure 1-Figure 3 The figure shows a specific embodiment of the pool bottom desilting equipment provided by the present invention, wherein the pool bottom desilting equipment is used to desilt a sedimentation tank mixed with solid sediments.

[0029] Specifically, if Figure 1 、 Figure 2 As shown, the pool bottom dredging equipment includes a scraper 100 and a scraper driving mechanism 200 for controlling the movement of the scraper 100. The scraper driving mechanism 200 is installed on the outside of the sedimentation tank 300, and includes a linear conveying component and a power device. The scraper 100 is installed at the output end of the linear conveying component and extends to the bottom of the sedimentation tank 300. The scraper 100 moves back and forth linearly along the sedimentation tank 300 under the drive of the scraper driving mechanism 200.

[0030] The above-described bottom desilting equipment utilizes a scraper 100 and a scraper drive mechanism 200 to perform a reciprocating linear scraping operation on the sedimentation tank 300, thereby clearing solid sediment from the bottom of the sedimentation tank 300. This achieves complete coverage and continuous scraping and cleaning of the bottom, preventing sediment from hardening after deposition. Furthermore, since the scraper drive mechanism 200 is entirely located outside the sedimentation tank 300, it avoids the problem of a shorter service life that would occur if it were located inside the sedimentation tank 300, such as blockage by solid sediment. Furthermore, the scraper drive mechanism 200 located outside the sedimentation tank 300 facilitates maintenance and replacement.

[0031] Since the chain transmission mechanism has the advantages of large power transmission and strong overload capacity, it can work in harsh environments such as high temperature, humidity, dust, and pollution. Figure 1 、 Figure 2 As shown, the linear conveying assembly includes at least two sprockets 201 spaced apart and a chain 202 connected to the sprockets 201 , and the power device is a rotary motor 203 that controls the rotation of one of the sprockets 201 .

[0032] More specifically, the sprocket 201 is supported on the transmission sleeve 204. In an optional embodiment, the linear conveying assembly includes two sets of chain transmission assemblies, that is, each end of the transmission sleeve 204 supports a sprocket 201 respectively, and the output shaft of the rotating motor 203 is connected to one of the transmission sleeves 204, for example, the transmission connection between the two is achieved through a gear transmission assembly.

[0033] Specifically, if Figure 1 、 Figure 2As shown, the scraper drive mechanism 200 is installed on the upper side of the sedimentation tank 300, and the transmission sleeve 204 is installed on the two opposite walls of the sedimentation tank 300 through the support members 205 located on both sides thereof, as shown in FIG. Figure 3 As shown, the transmission sleeve 204 spans the sedimentation tank 300 along the width direction of the sedimentation tank 300, so that the chain 202 located thereon moves back and forth along the length direction of the sedimentation tank 300, and the scraper 100 reciprocates synchronously with the chain 202. The length of the scraper 100 covers the width of the sedimentation tank 300, that is, the length of the scraper 100 is slightly smaller than the width of the sedimentation tank 300, so as to ensure that the solid sediment in the width direction of the sedimentation tank 300 is scraped during the movement of the scraper 100.

[0034] Specifically, in one optional embodiment, the upper side of the scraper 100 is connected to the pin of the chain 202. A connecting lug is provided on the upper side of the scraper 100 for mating with the pin, and a connecting hole is provided thereon. The scraper 100 is sleeved onto the pin of the chain 202 through the connecting hole to achieve connection with the chain 202. To ensure reliable and synchronous movement of the scraper 100 and the chain 202, the connecting hole of the scraper 100 is fixedly connected to the pin, for example, by an interference fit. This avoids the problem of the scraper 100 swinging during horizontal movement due to the rotatable fit between the two, resulting in poor cleaning effect.

[0035] Specifically, to avoid the problem of rigid collision caused by the mismatch between the height of the scraper 100 and the depth of the pool bottom, in an optional embodiment, the scraper 100 includes a support body 101 and a scraping plate 102 pivotally connected to the support body 101. The upper side of the support body 101 is fixedly connected to the pin of the chain 202, and the scraping plate 102 is connected to the lower side of the support body 101 via a pivot 103. Under normal conditions, the scraping plate 102 extends vertically under the action of gravity. When the height of the scraper 100 does not match the depth of the sedimentation tank 300, the bottom of the sedimentation tank 300 acts on the scraping plate 102. The scraping plate 102 can swing relative to the support body 101 at a set angle, for example, ±5°-10°. This can avoid the problem of excessive load and damage to the scraper drive mechanism 200 caused by rigid collision between the scraper 100 and the pool bottom.

[0036] More specifically, the height of the support body 101 is much greater than the height of the scraper plate 102, which can make the scraper plate 100 have better overall rigidity. Only the scraper plate 102 swings at a small angle to still ensure the overall cleaning effect.

[0037] Specifically, in an optional embodiment, an elastic member (not shown in the figure) is further included between the support body 101 and the scraper plate 102. In the initial state, the elastic member acts on the scraper plate 102 to keep it in a vertical state. More specifically, two elastic members are provided, and the two elastic members act on both sides of the scraper plate 102 respectively. Under the action of the two elastic members, the scraper plate 102 is always in a vertical state in the initial state. When the scraper plate 102 moves in the first direction, the scraper plate 102 swings clockwise around the pivot 103 to the first position; when the scraper plate 102 moves in the second direction, the scraper plate 102 swings counterclockwise around the pivot 103 to the second position. This avoids the problem of setting up an elastic member so that the scraper plate 102 is always subjected to elastic force in one direction.

[0038] Specifically, in an optional embodiment, the supporting body 101 is formed into an integral plate body whose length matches the width of the sedimentation tank 300, and the scraper plate 102 is formed into an integral plate body whose length matches the width of the sedimentation tank 300. In another optional embodiment, Figure 5 As shown, the support body 101 is formed into a row of comb-toothed types, which includes a plurality of comb-toothed plates 1011 and a connecting portion 1012 connecting the comb-toothed plates 1011 into one body. A plurality of scraper plates 102 are provided, which are respectively connected to the lower side of the comb-toothed plates 1011 through a pivot 103.

[0039] The present invention also provides a specific embodiment of a sedimentation tank 300 having the above-mentioned bottom dredging equipment. Figure 1 As shown, a pump pit 300a is provided at the bottom of the sedimentation tank 300 for accommodating a slurry pump 400. The slurry pump 400 in the pump pit 300a pumps and discharges the collected sediment. Driven by the scraper drive mechanism 200, the scraper 100 reciprocates linearly along the bottom of the sedimentation tank 300 above the pump pit 300a to transport the sediment into the pump pit 300a.

[0040] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A pond bottom desilting equipment, characterized in that: include: A scraper and a scraper drive mechanism for controlling the movement of the scraper, the scraper drive mechanism being mounted outside the sedimentation tank and comprising a linear conveying assembly and a power device, the scraper being mounted at the output end of the linear conveying assembly and extending to the bottom of the sedimentation tank, and the scraper being driven by the scraper drive mechanism to reciprocate linearly along the sedimentation tank; The linear conveying assembly includes two sprockets arranged at intervals and a chain that is transmission-connected to the sprockets. The upper side of the scraper is connected to the pin shaft of the chain. The power device is a rotating motor that controls the rotation of one of the sprockets. The scraper includes a supporting body and a scraper plate that is swingably connected to the supporting body. The upper side of the supporting body is fixedly connected to the pin shaft of the chain, and the scraper plate is connected to the lower side of the supporting body through a pivot. An elastic member is also included between the supporting body and the scraper plate. In the initial state, the elastic member acts on the scraper plate to keep it in a vertical state.

2. A pond bottom desilting equipment according to claim 1, characterized in that: The scraper driving mechanism further includes two transmission sleeves for supporting the sprockets. Both sides of each transmission sleeve are fixedly connected to the sprockets respectively, and the output end of the power device is transmission-connected to one of the transmission sleeves.

3. A pond bottom desilting equipment according to claim 2, characterized in that: The scraper drive mechanism is installed on the upper side of the sedimentation tank, wherein the transmission sleeve is installed on the two opposite walls of the sedimentation tank through the support members located on both sides thereof, and the extension direction of the transmission sleeve is parallel to the width direction of the sedimentation tank.

4. The pond bottom desilting equipment according to claim 1, characterized in that: The scraper reciprocates along the length direction of the sedimentation tank, and the length of the scraper covers the width of the sedimentation tank.

5. The pond bottom desilting equipment according to claim 4, characterized in that: The supporting body is formed into an integral plate body whose length matches the width of the sedimentation tank, and the scraper plate is formed into an integral plate body whose length matches the width of the sedimentation tank.

6. The pond bottom desilting equipment according to claim 1, characterized in that: The supporting body is formed into a row of comb-toothed plates, which includes a plurality of comb-toothed plates and a connecting portion connecting the comb-toothed plates together. A plurality of scraper plates are provided, which are respectively connected to the lower side of the comb-toothed plates through pivots.

7. A sedimentation tank, characterized in that: It comprises the pool bottom dredging equipment according to any one of claims 1 to 6, wherein a pump pit is provided in a partial area of ​​the bottom of the sedimentation tank, a slurry pump for sucking sediment is provided in the pump pit, and the scraper moves back and forth linearly along the area of ​​the sedimentation tank located above the pump pit to transport the sediment into the pump pit.

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