Overflow ditch cleaning device and thickener

Abstract

The utility model discloses an overflow ditch cleaning device and a thickener. The overflow ditch cleaning device comprises a cleaning chamber which comprises a baffle and a top plate, the upper end of the baffle is connected with the top plate, the width of the baffle is matched with that of an overflow ditch, the baffle is located in the overflow ditch, and the baffle, the top plate and the bottom face of the overflow ditch jointly form a cleaning cavity; the inlet end of the silt discharging pipe is provided with a submersible sewage pump, the submersible sewage pump extends into the bottom of the cleaning cavity and is used for pumping out the slurry in the cleaning cavity, and the outlet end of the silt discharging pipe extends out of the outer side of the cleaning cavity; the inlet end of the water inlet pipe is located on the outer side of the cleaning cavity, and the outlet end of the water inlet pipe extends into the cleaning cavity. The thickener comprises the overflow ditch cleaning device. The device can replace workers to enter the overflow ditch to clean the overflow ditch, and the safety of cleaning the overflow ditch is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of thickeners, in particular to an overflow ditch cleaning device and a thickener. Background Art

[0002] At present, most phosphorus chemical industries use thickeners as thickening devices. During the operation of the thickener, the supernatant on the upper layer of the slurry overflows into the overflow ditch around the thickener tank, and flows along the overflow ditch to the return water tank for production reuse. Because the solid particles suspended in the supernatant are easy to settle in the overflow ditch, especially when the production is unstable, the thickener tank is also easy to run and mix, resulting in a large number of solid particles being carried out with the supernatant and deposited in the overflow ditch, and the water quality entering the return water tank cannot be guaranteed. Therefore, the deposited slurry in the overflow ditch must be cleaned regularly.

[0003] However, during routine maintenance and cleaning, the overflow ditch is often cleaned manually, which places great pressure on the workers. In addition, the thickener has a large diameter and the water is deep. During manual cleaning of the overflow ditch, the cleaning workers are very likely to drown. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes an overflow ditch cleaning device and a thickener.

[0005] The solution of the utility model to solve the technical problem is:

[0006] An overflow ditch cleaning device is applied to a thickener having an overflow ditch, and the overflow ditch cleaning device comprises:

[0007] A cleaning chamber, comprising a baffle and a top plate, wherein the upper end of the baffle is connected to the top plate, the width of the baffle matches the width of the overflow ditch, the baffle is located in the overflow ditch, and together with the top plate and the bottom surface of the overflow ditch, forms a cleaning chamber;

[0008] A sludge discharge pipe, wherein a submersible sewage pump is provided at the inlet end of the sludge discharge pipe, the submersible sewage pump extends to the bottom of the cleaning chamber, the submersible sewage pump is used to pump out the slurry in the cleaning chamber, and the outlet end of the sludge discharge pipe extends out of the outside of the cleaning chamber;

[0009] A water inlet pipe, wherein the inlet end of the water inlet pipe is located outside the cleaning chamber, and the outlet end of the water inlet pipe extends into the cleaning chamber.

[0010] The utility model has at least the following beneficial effects: the baffle, the top plate and the bottom surface of the overflow ditch jointly form a cleaning chamber, which is convenient for centralized cleaning of slurry; the silt discharge pipe is used to discharge the slurry in the overflow ditch, and the slurry flows from the overflow ditch to the outside of the overflow ditch along the silt discharge pipe under the action of the submersible sewage pump to achieve cleaning of the overflow ditch; the water inlet pipe is used to provide clean water to the overflow ditch to achieve the effect of flushing the overflow ditch, so that the slurry in the overflow ditch is diluted, so that it is easier to pump it out of the overflow ditch through the submersible sewage pump, thereby improving the cleaning effect; during the entire cleaning process, workers do not need to enter the thickener, avoiding safety accidents of workers drowning in the thickener, and improving the safety of overflow ditch slurry cleaning.

[0011] As a further improvement of the above technical solution, the overflow ditch cleaning device also includes:

[0012] The stirring mechanism comprises a stirring driving component and a stirring blade, wherein the stirring driving component is connected to the top plate, and an output end of the stirring driving component is connected to the stirring blade to drive the stirring blade to rotate, and the stirring blade is arranged in the cleaning chamber.

[0013] The stirring mechanism can stir the clean water and slurry in the overflow ditch, so that the slurry is evenly diluted, so that the submersible sewage pump can pump out the diluted slurry more smoothly, further improving the cleaning effect.

[0014] As a further improvement of the above technical solution, the width of the top plate is greater than the width of the baffle plate, and the lower surface of the top plate is slidably connected to the upper end of the side wall of the overflow ditch. In this way, the top plate can block the slurry stirred by the stirring blades, prevent the stirred slurry from overflowing from the top of the cleaning chamber, and allow the slurry to be better pumped out by the submersible sewage pump, further improving the speed and effect of cleaning.

[0015] As a further improvement of the above technical solution, the cleaning chamber further comprises a baffle, the upper end of which is connected to the top plate, the overflow ditch is provided with an outer wall and an inner wall along the width direction, the outer wall of the overflow ditch is higher than the inner wall, the lower surface of the top plate is slidably connected to the outer wall of the overflow ditch, and the lower end of the baffle is slidably connected to the upper end of the inner wall of the overflow ditch. With such arrangement, the baffle can block the gap between the top plate and the upper end of the inner wall of the overflow ditch, and when the stirring mechanism stirs the slurry, the slurry and clean water are kept flowing in the cleaning chamber, preventing the stirred slurry or the clean water not mixed with the slurry from overflowing from the gap between the top plate and the upper end of the inner wall of the overflow ditch, thereby further improving the cleaning speed and effect of the slurry in the cleaning chamber.

[0016] As a further improvement of the above technical solution, the overflow ditch cleaning device also includes:

[0017] The power mechanism includes a central axis, a rotating shaft, a rotating track, a gear and a rotating driving component. The rotating track is annular, and is arranged on the outside of the overflow ditch and coaxially with the overflow ditch and the central axis. The rotating shaft is arranged along the radial direction of the rotating track. One end of the rotating shaft is rotatably connected to the central axis, and the other end is rotatably connected to the gear. The gear is coaxially arranged with the rotating shaft. A tooth structure is provided at the upper end of the rotating track, and the gear is meshed with the tooth structure. The rotating driving component is drivingly connected to the gear to drive the gear to rotate along the rotating track and drive the rotating shaft to rotate around the central axis. The rotating shaft is connected to the top plate.

[0018] Under the driving action of the rotating drive component, the gear rotates around the rotating axis and can roll along the rotating track, so that the rotating axis and the cleaning chamber connected thereto rotate around the central axis; the setting of the power mechanism can make the overflow ditch cleaning device automatically move along the overflow ditch, thereby realizing comprehensive cleaning of the overflow ditch.

[0019] As a further improvement of the above technical solution, the rotating drive component includes a second motor, a first transmission wheel, a second transmission wheel and a transmission belt, the body of the second motor is connected to the rotating shaft, the output end of the second motor is connected to the first transmission wheel, the transmission belt is sleeved on the first transmission wheel and the second transmission wheel, and the second transmission wheel is coaxially connected to the gear.

[0020] Under the driving action of the second motor, the first transmission wheel drives the transmission belt and the second transmission wheel to rotate, and allows the gear to rotate around its own center, providing driving force for the self-rotation of the gear.

[0021] As a further improvement of the above technical solution, the power mechanism also includes a pressure-bearing track and at least one supporting wheel. The pressure-bearing track is annular and is coaxially arranged with the rotating track. The supporting wheel is rollingly connected to the pressure-bearing track, and the axle center of the supporting wheel is connected to the rotating shaft.

[0022] The arrangement of the supporting wheel and the pressure-bearing track can reduce the pressure between the gear and the rotating track, avoid damage between the gear and the toothed structure of the rotating track, make the cleaning chamber move more smoothly, and improve the stability of the cleaning process.

[0023] As a further improvement of the above technical solution, the overflow ditch cleaning device also includes:

[0024] The lifting mechanism comprises a lifting drive component and a mounting plate, wherein the mounting plate is located above the top plate, the mounting plate is connected to the rotating shaft, the body of the lifting drive component is connected to the mounting plate, and the output end of the lifting drive component is connected to the top plate.

[0025] The lifting mechanism can automatically drive the cleaning chamber to lift and lower, so that the cleaning chamber automatically enters and exits the overflow ditch, further reducing the labor intensity of workers.

[0026] A thickener includes an overflow ditch cleaning device as described in any one of the above technical solutions. Since the overflow ditch cleaning device is provided, the overflow ditch can be cleaned regularly to avoid excessive slurry in the overflow ditch and to avoid safety accidents such as drowning of workers during the process of cleaning the overflow ditch.

[0027] As a further improvement of the above technical solution, the thickener further includes a thickening tank, the water inlet pipe and the silt discharge pipe of the overflow ditch cleaning device extend into the thickening tank respectively, the silt discharge pipe extends into the bottom of the thickening tank, and the water inlet pipe extends into the upper part of the thickening tank. In this arrangement, the slurry pumped out from the overflow ditch can enter the bottom of the thickening tank along the silt discharge pipe and re-precipitate in the thickening tank, which greatly improves the concentration of the slurry in the thickening tank and reduces the waste of slurry; and the water inlet pipe is connected to the upper part of the thickening tank, and the supernatant on the upper part of the thickening tank can be directly used to dilute the slurry in the cleaning chamber, which can improve the utilization rate of the supernatant on the upper layer of the slurry and reduce the waste of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following is a brief description of the drawings required for the description of the embodiments. Obviously, the drawings described are only part of the embodiments of the present utility model, not all of the embodiments, and those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative work.

[0029] Figure 1 It is a schematic diagram of the overall structure of the overflow ditch cleaning device of the utility model embodiment;

[0030] Figure 2 It is a schematic diagram of the overall structure of the overflow ditch cleaning device of the utility model embodiment at another angle;

[0031] Figure 3 It is an enlarged structural schematic diagram of a cleaning chamber of the overflow ditch cleaning device according to an embodiment of the utility model;

[0032] Figure 4 It is a schematic diagram of the installation of the rotating track and the pressure-bearing track of the overflow ditch cleaning device of the embodiment of the utility model.

[0033] 1. The cleaning chamber is provided with a plurality of support members, each of which is provided with a plurality of support members, and each of which is provided with a plurality of support members. The plurality of support members are provided with a plurality of support members, each of which is provided with a plurality of support members. The plurality of support members are provided with a plurality of support members, each of which is provided with a plurality of support members. DETAILED DESCRIPTION

[0034] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0035] In the description of the present invention, descriptions of orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0036] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0037] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0038] Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the utility model. The various technical features in the utility model can be combined interchangeably without conflicting with each other.

[0039] Reference Figures 1 to 4 On the first aspect, an embodiment of the utility model proposes an overflow ditch cleaning device, which is applied to a thickener having an overflow ditch 700. It can replace manual entry into the overflow ditch 700 and clean the overflow ditch 700, thereby avoiding excessive slurry in the overflow ditch 700 and affecting the reuse of water in the overflow ditch 700, thereby ensuring the water quality of the reused water. During the entire cleaning process, workers do not need to enter the thickener, thereby avoiding safety accidents such as workers drowning, and greatly improving the safety of cleaning the overflow ditch 700.

[0040] In this embodiment, the overflow ditch cleaning device includes a cleaning chamber 100, a water inlet pipe 300 and a silt discharge pipe 200. The cleaning chamber 100 includes a top plate 120 and a baffle 110, the top plate 120 is connected to the upper end of the baffle 110, the width of the baffle 110 matches the width of the overflow ditch 700, when the overflow ditch cleaning device of this embodiment is applied to the overflow ditch 700, the baffle 110 can extend into the overflow ditch 700, the baffle 110, the top plate 120 and the bottom surface of the overflow ditch 700 together form a cleaning chamber 130, and the cleaning chamber 130 is located between the upper side of the bottom surface of the overflow ditch 700 and the lower side of the top plate 120.

[0041] The sludge discharge pipe 200 is used to discharge the slurry in the overflow ditch 700. A submersible sewage pump 210 is provided at the inlet end of the sludge discharge pipe 200. The submersible sewage pump 210 extends to the bottom of the cleaning chamber 130. The submersible sewage pump 210 can pump out the slurry in the cleaning chamber 130. The outlet end of the sludge discharge pipe 200 extends to the outside of the cleaning chamber 130. Under the action of the submersible sewage pump 210, the slurry flows from the overflow ditch 700 to the outside of the overflow ditch 700 along the sludge discharge pipe 200, thereby cleaning the overflow ditch 700.

[0042] The inlet end of the water inlet pipe 300 is arranged on the outside of the cleaning chamber 130, and the outlet end extends into the inside of the cleaning chamber 130. The water inlet pipe 300 is used to provide clean water to the overflow ditch 700 to achieve the effect of flushing the overflow ditch 700 and diluting the slurry in the overflow ditch 700, so that it can be more easily pumped out of the overflow ditch 700 through the submersible sewage pump 210, thereby improving the cleaning effect.

[0043] In some embodiments, a water pump is provided on the water inlet pipe 300. The setting of the water pump can allow the clean water entering the cleaning chamber 130 to have a certain water pressure, so as to more effectively flush the slurry in the cleaning chamber 130, improve the fluidity of the slurry in the cleaning chamber 130, and be more conducive to the submersible sewage pump 210 to pump out the slurry in the cleaning chamber 130, thereby improving the cleaning efficiency and effect.

[0044] It can be understood that the overflow ditch 700 is generally annular and is arranged at the outer edge of the thickening tank 800. The thickening tank 800 can allow the slurry to settle. A supernatant will be formed on the upper layer of the slurry after the sedimentation. The supernatant overflows into the overflow ditch 700 through the edge of the thickening tank 800, and then flows into the return water tank through the overflow ditch 700 for recycling. The slurry precipitated in the thickening tank 800 is discharged through the slurry discharge port at the bottom of the thickening tank 800 to the dewatering machine for dehydration and other operations.

[0045] The inlet end of the water inlet pipe 300 can be connected to an external water source or directly connected to the upper part of the thickening tank 800. It is understandable that the water inlet pipe 300 connected to the upper part of the thickening tank 800 can extract the supernatant formed on the upper layer of the thickening tank 800 into the cleaning chamber 130, and directly use the supernatant to dilute the slurry in the cleaning chamber 130, which can improve the utilization rate of the supernatant on the upper layer of the slurry and reduce the waste of water resources.

[0046] The outlet end of the sludge discharge pipe 200 can be connected to an external slurry recovery tank, or can be directly connected to the bottom of the thickening tank 800. In this embodiment, the outlet end of the sludge discharge pipe 200 is connected to the bottom of the thickening tank 800, and the slurry pumped out by the submersible sewage pump 210 can flow back to the thickening tank 800 and re-precipitate in the thickening tank 800, which greatly improves the concentration of the slurry in the thickening tank 800 and reduces the waste of slurry.

[0047] In some embodiments, the overflow ditch cleaning device also includes a stirring mechanism 400, which can stir the clean water and slurry in the overflow ditch 700 to evenly dilute the slurry, so that the submersible sewage pump 210 can more smoothly pump out the diluted slurry, further improving the cleaning effect.

[0048] In this embodiment, the stirring mechanism 400 includes a stirring driving component and a stirring blade 420, wherein the stirring blade 420 is disposed in the cleaning chamber 130, the body of the stirring driving component is connected to the top plate 120, and the output end of the stirring driving component extends into the cleaning chamber 130 and is connected to the stirring blade 420. Under the driving action of the stirring driving component, the stirring blade 420 can rotate in the cleaning chamber 130 to achieve stirring of the slurry in the cleaning chamber 130.

[0049] In this embodiment, the stirring blade 420 is a spiral blade. When the stirring blade 420 rotates under the driving action of the stirring driving component, the slurry in the cleaning chamber 130 can rise in a spiral along the stirring blade 420, and then settle downward under the action of gravity, thereby realizing the up and down flipping of the slurry, further improving the uniformity of the slurry dilution, and improving the speed and effect of cleaning.

[0050] In this embodiment, the stirring driving component is a first motor 410, the body of the first motor 410 is installed on the upper side of the top plate 120, the output shaft of the first motor 410 is the output end of the stirring driving component, and the output shaft of the first motor 410 is penetrated through the top plate 120 and extends into the cleaning chamber 130 to be connected with the stirring blade 420 in the cleaning chamber 130. In this way, the top plate 120 can protect the first motor 410, prevent the body of the first motor 410 from being contaminated and damaged by the slurry in the cleaning chamber 130, and improve the service life of the first motor 410.

[0051] In some embodiments, the width of the top plate 120 is greater than the width of the baffle 110. When the overflow ditch cleaning device is used to clean the overflow ditch 700, the lower surface of the top plate 120 can contact and be slidably connected with the upper end of the side wall of the overflow ditch 700. In this way, the top plate 120 can block the slurry stirred by the stirring blade 420, prevent the stirred slurry from overflowing from the top of the cleaning chamber 130, and allow the slurry to be pumped out by the submersible sewage pump 210 to a greater extent, further improving the speed and effect of cleaning.

[0052] In some embodiments, the overflow ditch 700 used has an inner wall 720 and an outer wall 710 along the width direction, wherein the outer wall 710 of the overflow ditch 700 is higher than the inner side, and the lower surface of the top plate 120 is slidably connected to the upper end of the outer wall 710 of the overflow ditch 700. Since there is a certain height difference between the inner wall 720 and the outer wall 710 of the overflow ditch 700, there is also a gap between the upper end of the inner wall 720 of the overflow ditch 700 and the top plate 120. In this regard, the cleaning chamber 100 also includes a baffle 140, the upper end of the baffle 140 is connected to the top plate 120, and the lower end of the baffle 140 is slidably connected to the upper end of the inner wall 720 of the overflow ditch 700.

[0053] In this arrangement, the baffle 140 can block the gap between the top plate 120 and the upper end of the inner side wall 720 of the overflow ditch 700. When the stirring mechanism 400 stirs the slurry, the slurry and clean water are kept flowing in the cleaning chamber 130, preventing the stirred slurry or the clean water that is not mixed with the slurry from overflowing from the gap between the top plate 120 and the upper end of the inner side wall 720 of the overflow ditch 700, thereby further improving the cleaning speed and effect of the slurry in the cleaning chamber 130.

[0054] It is understandable that when the overflow ditch cleaning device is used to clean the overflow ditch 700, the cleaning chamber 100 needs to be moved along the overflow ditch 700 so that the overflow ditch cleaning device can clean various positions of the overflow ditch 700. It is understandable that the worker can manually push the cleaning chamber 100 to move, or the cleaning chamber 100 can be automatically driven to move along the overflow ditch 700 by a structure such as a manipulator.

[0055] In some embodiments, the overflow ditch cleaning device also includes a power mechanism 500, which is used to automatically drive the cleaning chamber 100 to automatically move along the overflow ditch 700, instead of manual drive, to achieve the effect of fully cleaning the overflow ditch 700, further reducing the labor intensity of workers.

[0056] In this embodiment, the power mechanism 500 includes a central axis 510, a rotating shaft 520, a rotating track 580, a gear 530 and a rotating driving component. When in use, the central axis 510 is installed at the center of the thickening tank 800 and is extended in the up-down direction. The rotating track 580 is annular. The rotating track 580 is arranged outside the overflow ditch 700 and is coaxial with the overflow ditch 700 and the central axis 510. The rotating shaft 520 is arranged along the radial direction of the rotating track 580. One end of the rotating shaft 520 is rotatably connected to the central axis 510, and the other end is rotatably connected to the gear 530. The top plate 120 is connected to the rotating shaft 520.

[0057] A toothed structure is provided at the upper end of the rotating track 580, and the gear 530 meshes with the toothed structure on the rotating track 580, and the rotating driving component is drivingly connected to the gear 530. Under the driving action of the rotating driving component, the gear 530 can rotate, and under the meshing action of the toothed structure, the gear 530 rolls along the rotating track 580, thereby driving the rotating shaft 520 to rotate around the central axis 510, and the cleaning chamber 100 installed on the rotating shaft 520 can also rotate around the central axis 510, thereby achieving the effect of moving the cleaning chamber 100 along the overflow ditch 700, and automatically cleaning the overflow ditch 700 in a comprehensive manner.

[0058] In this embodiment, the rotating track 580 is installed on the ground, and the rotating track 580 is directly supported by the ground.

[0059] In this embodiment, the gear 530 is coaxially arranged with the rotating shaft 520. When the rotating driving component drives the gear 530 to rotate, the gear 530 rotates around the rotating shaft 520. The rotating shaft 520 and the central axis 510 are perpendicular to each other. The rotating shaft 520 and the central axis 510 are connected by a sleeve 521. The sleeve 521 is sleeved on the outer periphery of the central axis 510 and fixed to the rotating shaft 520 by welding, gluing, integral molding, etc. When the rotating driving component drives the gear 530 to rotate, since the gear 530 and the toothed structure on the rotating track 580 are meshed with each other, the gear 530 can drive the rotating track to rotate around the central axis 510.

[0060] It is understandable that, in order to facilitate the feeding of slurry into the thickening tank 800, a feed pipe extending in the up-down direction is often provided at the center of the thickening tank 800. In some embodiments, a feed channel with both up-down openings is provided at the center of the central axis 510, and the central axis 510 can be used as a feed pipe. With such a configuration, there is no need to provide a separate feed pipe, which reduces the number of parts used for slurry thickening, reduces production costs, and can also avoid the problem of installation interference between the central axis 510 and the feed pipe.

[0061] In this embodiment, the rotation driving component includes a second motor 540, a first transmission wheel 550, a second transmission wheel 570 and a transmission belt 560. The transmission belt 560 is sleeved on the first transmission wheel 550 and the second transmission wheel 570, the second transmission wheel 570 is coaxially connected to the gear 530, and the output end of the second motor 540 is connected to the first transmission wheel 550. Under the driving action of the second motor 540, the first transmission wheel 550 drives the transmission belt 560 and the second transmission wheel 570 to rotate, thereby rotating the gear 530, providing power for the gear 530 to rotate around its own center. The self-rotation of the gear 530 can make the gear 530 and the rotating shaft 520 rotate around the central axis 510, so as to realize the automatic walking of the cleaning chamber 100 along the overflow ditch 700.

[0062] It can be understood that the body of the second motor 540 is installed on the rotating shaft 520 , and when the rotating shaft 520 rotates around the central axis 510 , the body of the second motor 540 also rotates around the central axis 510 .

[0063] In some embodiments, the power mechanism 500 further includes a pressure track 590 and a supporting wheel 591, the pressure track 590 is annular, and the pressure track 590 is coaxially arranged with the rotating track 580, the supporting wheel 591 is rollingly connected with the pressure track 590, and the axle center of the supporting wheel 591 is connected with the rotating shaft 520. It can be understood that the arrangement of the supporting wheel 591 and the pressure track 590 can reduce the pressure between the gear 530 and the rotating track 580, avoid the damage between the gear 530 and the toothed structure of the rotating track 580, and make the cleaning chamber 100 move more smoothly, thereby improving the stability of the cleaning process of the overflow ditch 700.

[0064] It is understandable that the pressure-bearing track 590 can be installed on the upper end of the inner wall 720 of the overflow ditch 700 , or on the upper end of the outer wall 710 of the overflow ditch 700 , or on the outer ground of the rotating track 580 .

[0065] In this embodiment, refer to Figure 4 The pressure rail 590 is installed on the upper end of the outer wall 710 of the overflow ditch 700 and is located on the outer side of the top plate 120. In this way, during the overflow of the supernatant liquid on the upper layer of the slurry in the thickening tank 800, the overflow ditch cleaning device can clean the overflow ditch 700 at the same time, and the pressure rail 590 will not interfere with the overflow process of the supernatant liquid. In addition, the lower end of the pressure rail 590 is supported by the outer wall 710 of the overflow ditch 700, which can reduce the height and weight of the pressure rail 590 and reduce the weight of the entire power mechanism 500.

[0066] It is understandable that at least one supporting wheel 591 is provided, and the number of supporting wheels 591 is not specifically limited herein. In this embodiment, two supporting wheels 591 are provided, and the two supporting wheels 591 jointly support other components of the power mechanism 500 and components such as the cleaning chamber 100 to ensure the stability of the cleaning chamber 100 when it moves along the overflow ditch 700.

[0067] It is understandable that it takes a certain amount of time for the slurry in the overflow ditch 700 to settle. Generally, the overflow ditch 700 is cleaned only when the slurry settles to a certain extent, so as to reduce the cost of cleaning. When the overflow ditch cleaning device of this embodiment is used, when the overflow ditch 700 needs to be cleaned, the cleaning chamber 100 is placed in the overflow ditch 700 for use. When the cleaning is completed, the submersible sewage pump 210, the water pump, the stirring mechanism 400 and other components stop working, and the cleaning chamber 100 can be taken out of the overflow ditch 700, so as to prevent the cost increase and the parts loss of the overflow ditch cleaning device caused by excessive cleaning.

[0068] In some embodiments, the overflow ditch cleaning device further includes a lifting mechanism 600, and the lifting mechanism 600 is used to automatically drive the cleaning chamber 100 to rise and fall, thereby further reducing the labor intensity of workers.

[0069] The lifting mechanism 600 includes a lifting drive component 620 and a mounting plate 610, wherein the mounting plate 610 is connected to the rotating shaft 520, the body of the lifting drive component 620 is connected to the mounting plate 610, and the driving end of the lifting drive component 620 is connected to the top plate 120 of the cleaning chamber 100, that is, the top plate 120 and the rotating shaft 520 are connected through the lifting mechanism 600. Under the driving action of the lifting drive component 620, the cleaning chamber 100 and the silt discharge pipe 200 and the water inlet pipe 300 connected to the cleaning chamber 100 can move up and down relative to the rotating shaft 520, thereby realizing the action of the cleaning chamber 100 automatically entering and exiting the overflow ditch 700.

[0070] It is understandable that the lifting drive component 620 can be a cylinder, an electric cylinder, etc., which is not specifically limited here. In this embodiment, the lifting drive part adopts a cylinder, and the telescopic rod of the cylinder is fixed to the top of the top plate 120. The cylinder is easy to install and maintain, and has waterproof capability.

[0071] In this embodiment, the lifting mechanism 600 further includes a lifting plate and a support column 630. The lower end of the support column 630 is connected to the top plate 120, and the upper end is connected to the lifting plate. The output end of the lifting drive component 620 is connected to the lifting plate. Under the action of the support column 630, an installation space is formed between the lifting plate and the top plate 120. After the sludge discharge pipe 200 and the water inlet pipe 300 extend upward from the cleaning chamber 130 and pass through the top plate 120, they can be turned in the installation space to facilitate access to the thickening tank 800 or an external slurry recovery tank and water source. In addition, the body of the stirring drive component can also be set in the installation space.

[0072] It is understandable that the number of the support columns 630 is not specifically limited. In this embodiment, there are two support columns 630 for connecting the lifting plate and the top plate 120, which can ensure the stability of the connection between the lifting plate and the top plate 120.

[0073] When the overflow ditch 700 needs to be cleaned, the lifting drive component 620 is started, and the lifting drive component 620 drives the cleaning chamber 100 to descend, and the lower end of the baffle 110 and the submersible sewage pump 210 extend to the bottom of the overflow ditch 700. The first motor 410, the submersible sewage pump 210 and the water pump are started, and the supernatant on the upper layer of the thickening tank 800 or the clean water from the external water source enters the overflow ditch 700 along the water inlet pipe 300 to dilute the slurry in the overflow ditch 700, the stirring blade 420 stirs the slurry, and the submersible sewage pump 210 extracts the diluted slurry, and the slurry is discharged along the sludge discharge pipe 200 to the bottom of the thickening tank 800 or the external slurry recovery tank.

[0074] During the cleaning process, the second motor 540 is started. Under the driving action of the second motor 540, the gear 530 rotates around its own center, the gear 530 and the rotating track 580 are meshed with each other, the gear 530 rolls along the rotating track 580 and drives the rotating shaft 520 to rotate around the central axis 510, so that the cleaning chamber 100 automatically moves along the overflow ditch 700. In this way, the overflow ditch cleaning device can move along the overflow ditch 700 while discharging the slurry in the overflow ditch 700, and comprehensively clean the overflow ditch 700.

[0075] When the cleaning is completed, the first motor 410 and the second motor 540 stop working, and the lifting drive component 620 drives the cleaning chamber 100 to rise, so that the cleaning chamber 100 leaves the overflow ditch 700 to prevent the cleaning chamber 100 from obstructing the overflow of the slurry supernatant in the thickening tank 800.

[0076] On the other hand, the embodiment of the present invention further provides a thickener, which includes the overflow ditch cleaning device as provided in any one of the embodiments of the first aspect. Since the overflow ditch cleaning device is provided, the overflow ditch 700 can be cleaned regularly to avoid excessive slurry in the overflow ditch 700. During the cleaning process, workers do not need to enter the thickener, and safety accidents such as drowning of workers during the cleaning of the overflow ditch 700 can also be avoided.

[0077] In this embodiment, the thickener also includes a thickening tank 800, the overflow ditch 700 is connected to the outer peripheral edge of the thickening tank 800, and the inlet end of the water inlet pipe 300 and the outlet end of the silt discharge pipe 200 of the overflow ditch cleaning device are respectively extended into the thickening tank 800, wherein the outlet end of the silt discharge pipe 200 extends to the bottom of the thickening tank 800, and the inlet end of the water inlet pipe 300 extends to the upper part of the thickening tank 800.

[0078] In this way, the slurry pumped out from the overflow ditch 700 can enter the bottom of the thickening tank 800 along the silt discharge pipe 200 and re-precipitate in the thickening tank 800, which greatly improves the concentration of the slurry in the thickening tank 800 and reduces the waste of slurry. The water inlet pipe 300 is connected to the upper part of the thickening tank 800, and the supernatant on the upper part of the thickening tank 800 can be directly used to dilute the slurry in the cleaning chamber 130, which can improve the utilization rate of the supernatant on the upper layer of the slurry and reduce the waste of water resources.

[0079] The preferred implementation modes of the present invention are specifically described above, but the present invention is not limited to the described embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. An overflow ditch cleaning device, characterized in that: Applicable to a thickener having an overflow ditch (700), the overflow ditch cleaning device comprises: A cleaning chamber (100) comprises a baffle (110) and a top plate (120), wherein the upper end of the baffle (110) is connected to the top plate (120), the width of the baffle (110) matches the width of the overflow ditch (700), the baffle (110) is located in the overflow ditch (700), and together with the top plate (120) and the bottom surface of the overflow ditch (700) forms a cleaning chamber (130); A sludge discharge pipe (200), wherein a submersible sewage pump (210) is provided at the inlet end of the sludge discharge pipe (200), the submersible sewage pump (210) extends into the bottom of the cleaning chamber (130), the submersible sewage pump (210) is used to pump out the slurry in the cleaning chamber (130), and the outlet end of the sludge discharge pipe (200) extends out of the outside of the cleaning chamber (130); A water inlet pipe (300), wherein the inlet end of the water inlet pipe (300) is located outside the cleaning chamber (130), and the outlet end of the water inlet pipe (300) extends into the cleaning chamber (130).

2. The overflow ditch cleaning device according to claim 1, characterized in that: The overflow ditch cleaning device also includes: The stirring mechanism (400) comprises a stirring driving component and a stirring blade (420), wherein the stirring driving component is connected to the top plate (120), and the output end of the stirring driving component is connected to the stirring blade (420) to drive the stirring blade (420) to rotate, and the stirring blade (420) is arranged in the cleaning chamber (130).

3. The overflow ditch cleaning device according to claim 2, characterized in that: The width of the top plate (120) is greater than the width of the baffle (110), and the lower surface of the top plate (120) is slidably connected to the upper end of the side wall of the overflow ditch (700).

4. The overflow ditch cleaning device according to claim 3, characterized in that: The cleaning chamber (100) further comprises a baffle (140), the upper end of which is connected to the top plate (120); the overflow ditch (700) is provided with an outer wall (710) and an inner wall (720) along the width direction; the outer wall (710) of the overflow ditch (700) is higher than the inner wall (720); the lower surface of the top plate (120) is slidably connected to the outer wall (710) of the overflow ditch (700); and the lower end of the baffle (140) is slidably connected to the upper end of the inner wall (720) of the overflow ditch (700).

5. The overflow ditch cleaning device according to claim 1, characterized in that: The overflow ditch cleaning device also includes: The power mechanism (500) comprises a central shaft (510), a rotating shaft (520), a rotating track (580), a gear (530) and a rotating driving component, wherein the rotating track (580) is annular, and the rotating track (580) is arranged outside the overflow ditch (700) and is coaxially arranged with the overflow ditch (700) and the central shaft (510). The rotating shaft (520) is arranged along the radial direction of the rotating track (580), and one end of the rotating shaft (520) is rotatably connected to the central shaft (510), and the other end of the rotating shaft (520) is rotatably connected to the central shaft (510). The end is rotationally connected to the gear (530), the gear (530) is coaxially arranged with the rotating shaft (520), the upper end of the rotating track (580) is provided with a toothed structure, the gear (530) is meshingly connected with the toothed structure, the rotating driving component is drivingly connected with the gear (530) to drive the gear (530) to rotate along the rotating track (580) and drive the rotating shaft (520) to rotate around the central axis (510), and the rotating shaft (520) is connected to the top plate (120).

6. The overflow ditch cleaning device according to claim 5, characterized in that: The rotating driving component comprises a second motor (540), a first transmission wheel (550), a second transmission wheel (570) and a transmission belt (560); the body of the second motor (540) is connected to the rotating shaft (520); the output end of the second motor (540) is connected to the first transmission wheel (550); the transmission belt (560) is sleeved on the first transmission wheel (550) and the second transmission wheel (570); and the second transmission wheel (570) is coaxially connected to the gear (530).

7. The overflow ditch cleaning device according to claim 5, characterized in that: The power mechanism (500) further comprises a pressure-bearing track (590) and at least one supporting wheel (591); the pressure-bearing track (590) is annular and is coaxially arranged with the rotating track (580); the supporting wheel (591) is rollingly connected to the pressure-bearing track (590); and the axle center of the supporting wheel (591) is connected to the rotating shaft (520).

8. The overflow ditch cleaning device according to claim 5, characterized in that: The overflow ditch cleaning device also includes: The lifting mechanism (600) comprises a lifting drive component (620) and a mounting plate (610), wherein the mounting plate (610) is located above the top plate (120), the mounting plate (610) is connected to the rotating shaft (520), the body of the lifting drive component (620) is connected to the mounting plate (610), and the output end of the lifting drive component (620) is connected to the top plate (120).

9. A thickener, characterized in that: It comprises an overflow ditch cleaning device as described in any one of claims 1 to 8.

10. The thickener according to claim 9, characterized in that The thickener further comprises a thickening tank (800), the water inlet pipe (300) and the silt discharge pipe (200) of the overflow ditch cleaning device respectively extend into the thickening tank (800), the silt discharge pipe (200) extends into the bottom of the thickening tank (800), and the water inlet pipe (300) extends into the upper part of the thickening tank (800).

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