Device for cleaning deposited ore pulp in overflow ditch of thickener and thickener

Abstract

The utility model discloses a thickener overflow ditch deposited ore pulp cleaning device and a thickener. The cleaning device for the deposited ore pulp in the overflow ditch of the thickener comprises a pulp outlet box, a pulp outlet cavity is formed in the pulp outlet box, a pulp outlet is further formed in the pulp outlet box, and the pulp outlet is communicated with the pulp outlet cavity; the soybean milk conveying assembly comprises a conveying belt and a conveying driving part, at least one soybean milk scraping plate is arranged on the conveying belt, the upper end of the conveying belt extends into the soybean milk outlet cavity, the conveying belt is downwards and obliquely arranged, and the conveying driving part is in driving connection with the conveying belt so as to drive the soybean milk scraping plate to move in the extending direction of the conveying belt. The thickener comprises the thickener overflow ditch deposited ore pulp 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 a device for cleaning ore pulp deposited in an overflow ditch of a thickener 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 surrounding overflow ditch 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 is also prone to mixing, resulting in a large number of solid particles being carried out with the supernatant and deposited in the overflow ditch. The water quality entering the return water tank cannot be guaranteed, and the deposited slurry in the overflow ditch must be cleaned regularly.

[0003] However, during routine maintenance, the overflow ditch is often cleaned manually, which is labor-intensive. In addition, the thickener has a large diameter and the water depth can even reach 8 meters. During the cleaning process, 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 provides a thickener overflow ditch sediment slurry cleaning device and a thickener.

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

[0006] A device for cleaning slurry deposited in a thickener overflow ditch, comprising:

[0007] A pulp discharge box, wherein a pulp discharge cavity is provided in the pulp discharge box, and the pulp discharge box is further provided with a pulp discharge port, and the pulp discharge port is communicated with the pulp discharge cavity;

[0008] The slurry transfer assembly includes a conveyor belt and a conveyor drive component. The conveyor belt is provided with at least one scraper plate. The upper end of the conveyor belt extends into the slurry discharge cavity. The conveyor belt is arranged to be inclined downward. The conveyor drive component is connected to the conveyor belt to drive the scraper plate to move along the extension direction of the conveyor belt.

[0009] The utility model has at least the following beneficial effects: the device for cleaning the deposited slurry in the overflow ditch of the thickener is applied to the thickening pool of the thickener, and the slurry transfer component is placed in the overflow ditch of the thickener, the conveyor belt is driven by the conveying drive component to make the scraper plate scrape the deposited slurry in the overflow ditch, the scraper plate drives the slurry to move from bottom to top along the extension direction of the conveyor belt, and reaches the slurry discharge chamber, the slurry in the slurry discharge chamber is discharged through the slurry discharge port, thereby realizing the cleaning of the deposited slurry in the overflow ditch; during the whole process, the slurry cleaning action can be automatically performed by only placing the lower end of the conveyor belt to the bottom of the overflow ditch, and the workers do not need to enter the thickener, thus avoiding the safety accident of drowning of the workers in the thickener and improving the safety of cleaning the slurry in the overflow ditch.

[0010] As a further improvement of the above technical solution, the slurry transfer assembly further includes a slurry transfer box, a slurry transfer cavity is provided in the slurry transfer box, the slurry transfer box is arranged to be inclined downward along the extension direction of the conveyor belt, the conveyor belt is arranged in the slurry transfer cavity, the upper and lower ends of the slurry transfer cavity are respectively provided with openings, the upper end of the slurry transfer box is connected to the slurry outlet box, and the slurry transfer cavity is communicated with the slurry outlet cavity. The slurry transfer box provides support for the installation of the conveyor belt and the transmission drive component, and can provide protection for the slurry scraped off by the scraper plate, so as to prevent the slurry from flowing down from the scraper plate during the transmission process and affecting the transmission efficiency.

[0011] As a further improvement of the above technical solution, the transmission driving component includes a first motor, a driving wheel and a driven wheel, the driving wheel and the driven wheel are respectively arranged at the upper and lower ends of the conveyor belt, the conveyor belt is sleeved on the driving wheel and the driven wheel, and the first motor is drivingly connected to the driving wheel. Under the driving action of the first motor, the driving wheel rotates and drives the conveyor belt to move, allowing the scraper plate on the conveyor belt to move along the extension direction of the conveyor belt, and the scraper plate scrapes the slurry in the overflow ditch and drives the slurry to the slurry outlet cavity.

[0012] As a further improvement of the above technical solution, the driving wheel and the driven wheel are both sprocket wheels, the conveyor belt is a chain, and the driving wheel and the driven wheel are respectively meshed and connected with the conveyor belt. Through the meshing action of the chain and the sprocket wheel, the phenomenon of slipping between the conveyor belt and the driving wheel and the driven wheel can be avoided, the transmission accuracy can be better controlled, and the slurry can be better transmitted.

[0013] As a further improvement of the above technical solution, the angle between the conveyor belt and the horizontal plane is greater than or equal to 30° and less than or equal to 60°. In this way, the length of the conveyor belt will not be too long, which can improve the cleaning efficiency of the slurry; moreover, the setting of the conveyor belt will not be too steep, which is conducive to the upward transportation of the slurry to the slurry discharge chamber.

[0014] As a further improvement of the above technical solution, the thickener overflow ditch deposited slurry cleaning device further includes:

[0015] A water inlet pipe is connected to the slurry discharge box and is arranged opposite to the slurry discharge port.

[0016] The water inlet pipe can provide clean water to the slurry discharge chamber, and allow the slurry in the slurry discharge chamber to be flushed out through the slurry discharge port under the action of the clean water, thereby avoiding blockage of the slurry in the slurry discharge chamber.

[0017] As a further improvement of the above technical solution, the thickener overflow ditch deposited slurry cleaning device further includes:

[0018] The power mechanism includes a central axis, a rotating shaft, a rotating track, a driving gear and a rotating driving component. The rotating track is annular and is coaxially arranged with 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 driving gear. The driving gear is coaxially arranged with the rotating shaft. A tooth structure is provided at the upper end of the rotating track. The driving gear is meshed with the tooth structure. The rotating driving component is drivingly connected to the driving gear to drive the driving 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 pulp discharge box.

[0019] Driven by the rotating drive component, the driving gear rotates around the rotating axis and can roll along the rotating track, so that the rotating axis and components such as the pulp discharge box connected thereto rotate around the central axis; the setting of the power mechanism can make the pulp discharge box and the pulp transfer assembly move automatically along the overflow ditch, thereby achieving comprehensive cleaning of the overflow ditch.

[0020] As a further improvement of the above technical solution, the power mechanism also includes a supporting wheel and a pressure-bearing track. The pressure-bearing track is annular and 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.

[0021] The setting of the supporting wheel and the pressure-bearing track can reduce the pressure between the driving gear and the rotating track, avoid damage between the driving gear and the tooth structure of the rotating track, and make the pulp box and the pulp transfer assembly move more smoothly, thereby improving the stability of the cleaning process.

[0022] As a further improvement of the above technical solution, the thickener overflow ditch deposited slurry cleaning device further includes:

[0023] The lifting mechanism comprises a lifting drive component and a mounting plate, wherein the mounting plate is connected to the rotating shaft, the body of the lifting drive component is connected to the mounting plate, and the driving end of the lifting drive component is connected to the pulp box to drive the pulp box to move in the up and down directions.

[0024] The lifting mechanism can automatically drive the pulp box and the pulp transfer assembly to rise and fall, so that the pulp transfer assembly automatically enters and exits the overflow ditch, further reducing the labor intensity of workers.

[0025] A thickener includes a thickener overflow ditch deposited slurry cleaning device as described in any one of the above technical solutions. Since the thickener overflow ditch deposited slurry cleaning device is provided, the overflow ditch can be cleaned regularly to avoid excessive slurry in the overflow ditch, and safety accidents such as drowning of workers during the process of cleaning the overflow ditch can also be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] 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.

[0027] Figure 1 It is a schematic diagram of the overall structure of a thickener overflow ditch sediment slurry cleaning device according to an embodiment of the utility model;

[0028] Figure 2 It is a schematic diagram of the overall structure of the thickener overflow ditch sediment slurry cleaning device according to an embodiment of the utility model from another angle;

[0029] Figure 3 It is an enlarged structural schematic diagram of a slurry discharge box and a slurry transfer assembly of a thickener overflow ditch deposited slurry cleaning device according to an embodiment of the utility model;

[0030] Figure 4 It is a schematic diagram of the internal structure of the slurry box and slurry transfer assembly of the thickener overflow ditch deposited slurry cleaning device according to an embodiment of the utility model;

[0031] Figure 5 It is a schematic diagram of the installation of a rotating track and a pressure-bearing track of a thickener overflow ditch sediment slurry cleaning device according to an embodiment of the utility model.

[0032] 1. The slurry discharge box; 110. The slurry discharge port; 120. The slurry discharge chamber; 200. The slurry transfer assembly; 210. The slurry transfer box; 211. The slurry transfer chamber; 220. The conveyor belt; 230. The scraper plate; 240. The conveying drive component; 241. The first motor; 242. The driving wheel; 243. The driven wheel; 300. The power mechanism; 310. The second motor; 311. The first transmission wheel; 312. The second transmission wheel; 313. The transmission belt; 320. The driving gear; 330. The rotating track; 340. The rotating shaft; 341. The bushing; 350. The middle shaft; 360. The pressure track; 370. The supporting wheel; 400. The lifting mechanism; 410. The lifting drive component; 420. The mounting plate; 500. The water inlet pipe; 600. The overflow ditch; 700. The thickening tank. DETAILED DESCRIPTION

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] Reference Figures 1 to 5 In the first aspect, an embodiment of the utility model provides a device for cleaning the ore pulp deposited in the overflow ditch of a thickener, which is applied to the thickener to clean the overflow ditch 600 of the thickener, and to clean out the ore pulp deposited in the overflow ditch 600, thereby ensuring the cleanliness of the water entering the return water tank.

[0039] The thickener overflow ditch deposited slurry cleaning device of this embodiment includes a slurry box 100 and a slurry transfer assembly 200. A slurry discharge chamber 120 is provided in the slurry box 100, and the slurry discharge chamber 120 is also provided with a slurry discharge port 110, and the slurry discharge port 110 is connected to the slurry discharge chamber 120. The slurry transfer assembly 200 includes a conveyor belt 220 and a conveyor drive component 240, and at least one scraper 230 is provided on the conveyor belt 220, and the upper end of the conveyor belt 220 extends into the slurry discharge chamber 120 of the slurry box 100, and the conveyor belt 220 is obliquely extended downward, and the conveyor drive component 240 is drivingly connected to the conveyor belt 220. When in use, the lower end of the conveyor belt 220 extends into the overflow ditch 600 of the thickener. Under the driving action of the conveying drive component 240, the scraper plate 230 scrapes the slurry in the overflow ditch 600, and drives the slurry to move along the extension direction of the conveyor belt 220 to the slurry discharge chamber 120, and is discharged from the slurry discharge port 110, thereby achieving the effect of cleaning the slurry in the overflow ditch 600.

[0040] During the entire cleaning process, since the slurry transfer assembly 200 can directly deliver the slurry in the overflow ditch 600 to the slurry discharge box 100 and discharge it through the slurry discharge port 110, there is no need for manual entry into the thickener to clean the overflow ditch 600, which avoids the labor intensity of the workers and improves the safety of the cleaning process.

[0041] It can be understood that the thickener used in this embodiment has a thickener tank 700, and the overflow ditch 600 is located at the outer peripheral edge of the thickener tank 700. The thickener tank 700 can allow the slurry to settle, and the supernatant on the upper layer of the slurry overflows into the overflow ditch 600. The precipitated and concentrated slurry is discharged to the dehydrator through the outlet at the bottom of the thickener tank 700 for dehydration. In this embodiment, when in use, the slurry outlet 110 of the slurry box 100 is arranged toward the thickener tank 700, and the slurry outlet 110 of the slurry box 100 can directly discharge the slurry in the slurry outlet cavity 120 back to the thickener tank 700, so as to increase the slurry concentration of the thickener tank 700, thereby improving the dehydration efficiency of the dehydrator.

[0042] In some embodiments, the slurry transfer assembly 200 further includes a slurry transfer box 210, the upper end of which is connected to the slurry discharge box 100, the slurry transfer box 210 is hollow to form a slurry transfer cavity 211, the conveyor belt 220 is arranged in the slurry transfer cavity 211, the slurry transfer box 210 is also arranged to extend obliquely, and the extension direction of the slurry transfer box 210 is consistent with that of the conveyor belt 220. It can be understood that the upper and lower ends of the slurry transfer cavity 211 are both provided with openings, wherein the upper end of the slurry transfer cavity 211 is connected to the slurry discharge cavity 120, and the conveyor belt 220 extends into the slurry discharge cavity 120 through the opening at the upper end of the slurry transfer cavity 211.

[0043] It is understandable that the slurry transfer box 210 provides support for the installation of the conveyor belt 220 and the conveyor drive component 240. In addition, the slurry transfer box 210 can provide protection for the slurry scraped off by the scraper 230. The side wall and bottom surface of the slurry transfer box 210 can block the slurry scraped by the scraper 230, preventing the slurry from flowing down from the bottom, left or right side of the scraper 230, so that the slurry can smoothly move along the conveyor belt 220 from the overflow ditch 600 to the slurry outlet chamber 120 obliquely upward, thereby improving the efficiency of the scraper 230 in transporting the slurry.

[0044] In this embodiment, the body of the transmission drive component 240 is installed on the outside of the slurry transfer box 210, and the output end of the transmission drive component 240 is arranged in the slurry transfer box 210, and extends into the slurry transfer cavity 211 to be driven and connected with the conveyor belt 220. It can be understood that such a configuration can prevent the slurry in the slurry transfer cavity 211 from polluting and damaging the body of the transmission drive component 240, protect the transmission drive component 240, and improve the service life of the transmission drive component 240.

[0045] In some embodiments, the transmission driving component 240 includes a first motor 241, a driving wheel 242 and a driven wheel 243. The conveyor belt 220 is sleeved on the driving wheel 242 and the driven wheel 243, and the output end of the first motor 241 is connected to the driving wheel 242. Under the driving action of the first motor 241, the driving wheel 242 rotates and drives the conveyor belt 220 to move, and the driven wheel 243 also rotates accordingly.

[0046] In this embodiment, the body of the first motor 241 is installed on the outside of the slurry transfer box 210, and the output shaft of the first motor 241 is its output end. The output shaft of the first motor 241 is passed through the slurry transfer box 210 and connected to the driving wheel 242 in the slurry transfer cavity 211. It can be understood that the driving wheel 242 can be set at the upper end of the conveyor belt 220, and correspondingly, the driven wheel 243 is set at the lower end of the conveyor belt 220; the driving wheel 242 can also be set at the lower end of the conveyor belt 220, and the corresponding driven wheel 243 is set at the upper end of the conveyor belt 220.

[0047] In some embodiments, the conveyor belt 220 is tensioned on the driving wheel 242 and the driven wheel 243. The driving wheel 242 drives the conveyor belt 220 to move through the friction between the driving wheel 242 and the conveyor belt 220, and the conveyor belt 220 drives the driven wheel 243 to rotate through the friction between the driven wheel 243 and the driven wheel 243.

[0048] In other embodiments, the conveyor belt 220 is a chain, the driving wheel 242 and the driven wheel 243 are both sprockets, the driving wheel 242 and the driven wheel 243 are respectively meshed and connected with the conveyor belt 220, and under the driving action of the first motor 241, the driving wheel 242 drives the conveyor belt 220 to move through the sprocket teeth, and the conveyor belt 220 further drives the driven wheel 243 to rotate through the sprocket teeth, which can avoid slipping between the conveyor belt 220 and the driving wheel 242 and the driven wheel 243, and can better control the transmission accuracy and better transmit the slurry.

[0049] In some embodiments, the transmission drive component 240 also includes an auxiliary wheel, which is arranged between the driving wheel 242 and the driven wheel 243, and can provide a certain support for the conveyor belt 220 between the driving wheel 242 and the driven wheel 243, thereby preventing the conveyor belt 220 from collapsing during the process of conveying the slurry.

[0050] In some embodiments, the angle between the conveyor belt 220 and the horizontal plane is between 30° and 60°. When the angle between the conveyor belt 220 and the horizontal plane is greater than 60°, the slurry and the conveyor belt 220 are prone to slippage, which is not conducive to the upward transportation of the slurry to the slurry discharge chamber 120; when the angle between the conveyor belt 220 and the horizontal plane is less than 30°, the slurry discharge box 100 is set at the same height from the bottom of the overflow ditch 600, and a longer conveyor belt 220 is required, which greatly reduces the efficiency of slurry transfer; when the angle between the conveyor belt 220 and the horizontal plane is between 30° and 60°, the cleaning efficiency and cleaning effect of the slurry can be improved.

[0051] In this embodiment, the slurry transfer box 210 is arranged in parallel with the conveyor belt 220, which can better prevent the slurry on the scraper plate 230 from flowing back into the overflow ditch 600 from the left and right sides and the bottom of the scraper plate 230.

[0052] In some embodiments, the scraper plate 230 and the upper and lower surfaces of the conveyor belt 220 are arranged perpendicular to each other. Such an arrangement can better scrape the slurry and bring it into the slurry transfer chamber 211. When the scraper plate 230 reaches the uppermost end of the conveyor belt 220, the scraper plate 230 rotates around the driving wheel 242, and the slurry can flow along the scraper plate 230 to the slurry outlet chamber 120, thereby reducing the residual slurry at the angle between the scraper plate 230 and the conveyor belt 220, thereby improving the slurry cleaning effect.

[0053] In some embodiments, the bottom surface of the slurry transfer box 210 is horizontally arranged. When in use, the slurry transfer box 210 is placed in the overflow ditch 600, and the bottom surface of the slurry transfer box 210 fits with the bottom surface of the overflow ditch 600, making the placement of the slurry transfer box 210 more stable.

[0054] In some embodiments, an observation port is provided on the upper end surface of the slurry transfer box 210, and the observation port is connected to the slurry transfer chamber 211. The operator can observe the scraper plate 230 and the conveyor belt 220 inside the slurry transfer chamber 211 through the observation port, and promptly discover abnormal conditions of the conveyor belt 220 and the scraper plate 230, and promptly repair them.

[0055] In some embodiments, the thickener overflow ditch deposited slurry cleaning device further includes a water inlet pipe 500, which is connected to the slurry box 100 and arranged opposite to the slurry outlet 110. When in use, the water inlet pipe 500 is connected to an external water source and can provide clean water to the slurry outlet cavity 120. The water in the water inlet pipe 500 flushes the slurry in the slurry outlet cavity 120 out through the slurry outlet 110, preventing the slurry transported by the conveyor belt 220 from blocking the slurry outlet cavity 120 and the slurry outlet 110, thereby making the cleaning of the slurry smoother.

[0056] In some embodiments, a water pump is provided on the water inlet pipe 500. The provision of the water pump can allow the water entering the pulp outlet chamber 120 to have sufficient water pressure, thereby more effectively flushing out the slurry and further avoiding the situation of slurry blockage.

[0057] It is understood that the overflow ditch 600 is generally annular and is arranged at the periphery of the thickening tank 700. When the slurry transfer assembly 200 and the slurry discharge box 100 are used to clean the overflow ditch 600, the slurry transfer assembly 200 and the slurry discharge box 100 need to be moved along the overflow ditch 600, so that the slurry transfer assembly 200 scrapes the slurry at various positions in the overflow ditch 600 and transfers it to the slurry discharge box 100, thereby achieving the effect of fully cleaning the overflow ditch 600. It is understood that the worker can manually drive the slurry transfer assembly 200 and the slurry discharge box 100 to move along the overflow ditch 600.

[0058] In some embodiments, the thickener overflow ditch deposited slurry cleaning device also includes a power mechanism 300, which is used to automatically drive the slurry box 100 and the slurry transfer assembly 200 to move along the overflow ditch 600, instead of manual drive, so that the slurry transfer assembly 200 can scrape the slurry at various positions in the overflow ditch 600 and transfer it to the slurry box 100, thereby achieving the effect of comprehensively cleaning the overflow ditch 600 and further reducing the labor intensity of workers.

[0059] In this embodiment, the power mechanism 300 includes a central shaft 350, a rotating shaft 340, a rotating track 330, a driving gear 320, and a rotating driving component. When in use, the central shaft 350 is installed at the center of the thickening tank 700 and is extended in the up-down direction. The rotating track 330 is annular, and the rotating track 330 is coaxially arranged with the central shaft 350. The rotating shaft 340 is arranged along the radial direction of the rotating track 330, one end of the rotating shaft 340 is rotatably connected to the central shaft 350, and the other end is rotatably connected to the driving gear 320, and the pulp discharge box 100 is connected to the rotating shaft 340.

[0060] A tooth structure is provided at the upper end of the rotating track 330, and the driving gear 320 meshes with the tooth structure on the rotating track 330, and the rotating driving component is drivingly connected to the driving gear 320. Under the driving action of the rotating driving component, the driving gear 320 can rotate, and under the meshing action of the tooth structure, the driving gear 320 rotates along the rotating track 330, thereby driving the rotating shaft 340 to rotate around the central axis 350, and the pulp box 100 installed on the rotating shaft 340 and the pulp transfer assembly 200 connected to the pulp box 100 can also rotate around the central axis 350, thereby achieving the effect of the pulp box 100 and the pulp transfer assembly 200 moving along the overflow ditch 600, and the overflow ditch 600 can be automatically and comprehensively cleaned.

[0061] In this embodiment, the rotating track 330 is installed on the ground.

[0062] In this embodiment, the driving gear 320 and the rotating shaft 340 are coaxially arranged. When the driving gear 320 rotates under the driving action of the rotating driving component, the driving gear 320 rotates around the central axis of the rotating shaft 340. The rotating shaft 340 and the central shaft 350 are connected through a sleeve 341. The sleeve 341 is sleeved on the outer periphery of the central shaft 350 and is fixedly connected to the rotating shaft 340. When the driving gear 320 rotates, the driving gear 320 can drive the rotating shaft 340 to rotate around the central shaft 350 because the toothed structure on the driving gear 320 and the rotating track 330 are meshed with each other.

[0063] It is understandable that the thickener also has a feed pipe for guiding the slurry into the thickener tank 700. The feed pipe is arranged at the center of the thickener tank 700. In some embodiments, the central axis 350 can be used as a feed pipe, and a feed channel with upper and lower openings can be arranged at the center of the central axis 350. With this arrangement, there is no need to set up a separate feed pipe, which reduces the number of parts of the thickener, reduces production costs, and can also avoid installation interference problems between the central axis 350 and the feed pipe.

[0064] In this embodiment, the rotating driving component includes a second motor 310, a transmission belt 313, a first transmission wheel 311 and a second transmission wheel 312. The first transmission wheel 311 is connected to the output end of the second motor 310, the transmission belt 313 is tensioned on the first transmission wheel 311 and the second transmission wheel 312, the second transmission wheel 312 is connected and fixed to the driving gear 320, and the driving gear 320 is coaxially arranged with the second transmission wheel 312.

[0065] Under the driving action of the second motor 310, the first transmission wheel 311 rotates, and drives the transmission belt 313 and the second transmission wheel 312 to rotate, thereby driving the driving gear 320 to rotate. The driving gear 320 can drive the rotating shaft 340 to rotate around the central axis 350, thereby realizing the automatic movement of the pulp box 100 and the pulp transfer assembly 200 along the overflow ditch 600.

[0066] It is understandable that the body of the second motor 310 can be installed on the rotating shaft 340 , and when the rotating shaft 340 rotates around the central axis 350 , the second motor 310 also rotates around the central axis 350 .

[0067] In some embodiments, the power mechanism 300 further includes a pressure track 360 and a supporting wheel 370. The pressure track 360 is annular, and the pressure track 360 is coaxially arranged with the rotating track 330. The supporting wheel 370 is rollingly connected with the pressure track 360, and the axle center of the supporting wheel 370 is connected with the rotating shaft 340. It can be understood that the arrangement of the supporting wheel 370 and the pressure track 360 can reduce the pressure between the driving gear 320 and the rotating track 330, avoid the damage between the toothed structures of the driving gear 320 and the rotating track 330, and make the pulp box 100 and the pulp transfer assembly 200 walk more smoothly, thereby improving the stability of the cleaning process.

[0068] It is understandable that the pressure-bearing track 360 can be installed on the upper end of the inner wall of the overflow ditch 600 , or on the upper end of the outer wall of the overflow ditch 600 , or on the outer ground of the rotating track 330 .

[0069] In this embodiment, the pressure rail 360 is installed at the upper end of the outer side wall of the overflow ditch 600. Figure 5 In this way, during the overflow of the supernatant liquid on the upper layer of the slurry in the thickening tank 700, the slurry box 100 and the slurry transfer assembly 200 can simultaneously clean the overflow ditch 600, and the pressure rail 360 will not interfere with the overflow process. Moreover, the lower end of the pressure rail 360 is supported by the outer wall of the overflow ditch 600, which can reduce the height and weight of the pressure rail 360 and reduce the weight of the entire power mechanism 300.

[0070] It is understandable that the number of the supporting wheels 370 is not specifically limited. In this embodiment, two supporting wheels 370 are provided, and the two supporting wheels 370 jointly support other components of the power mechanism 300 and components such as the slurry discharge box 100 and the slurry transfer assembly 200 to ensure the stability of the slurry discharge box 100 and the slurry transfer assembly 200 when walking.

[0071] It is understandable that it takes a certain amount of time for the slurry in the overflow ditch 600 to settle. Generally, the overflow ditch 600 is cleaned only when the slurry has settled to a certain extent, so as to reduce the cost of cleaning. When the thickener overflow ditch sediment slurry cleaning device of this embodiment is used, when the overflow ditch 600 needs to be cleaned, the slurry transfer assembly 200 and the slurry transfer box 210 are placed in the overflow ditch 600 for use. When the cleaning is completed, the slurry transfer assembly 200 stops working, and the slurry transfer assembly 200 and the slurry transfer box 210 can be taken out of the overflow ditch 600 to prevent the increase in cost and the loss of components such as the slurry transfer assembly 200 caused by excessive cleaning.

[0072] In some embodiments, the thickener overflow ditch deposited slurry cleaning device further includes a lifting mechanism 400, and the lifting mechanism 400 is used to automatically drive the slurry box 100 and the slurry transfer assembly 200 to lift and lower, further reducing the labor intensity of workers.

[0073] The lifting mechanism 400 includes a lifting drive component 410 and a mounting plate 420. The mounting plate 420 is connected to the rotating shaft 340. The body of the lifting drive component 410 is connected to the mounting plate 420. The driving end of the lifting drive component 410 is connected to the discharge box 100, that is, the rotating shaft 340 and the discharge box 100 are connected through the lifting mechanism 400. Under the driving action of the lifting drive component 410, the discharge box 100 and the slurry transfer assembly 200 connected thereto can move up and down relative to the rotating shaft 340, thereby realizing the action of the discharge box 100 and the slurry transfer assembly 200 automatically entering and exiting the overflow ditch 600.

[0074] It is understandable that the lifting drive component 410 can be a cylinder, an electric cylinder, etc., which is not specifically limited here. In this embodiment, the lifting drive component 410 adopts a cylinder, and the telescopic rod of the cylinder is fixed to the top of the pulp box 100. The cylinder is easy to install and maintain, and has waterproof capability.

[0075] When the overflow ditch 600 needs to be cleaned, the lifting drive component 410 is started to drive the pulp box 100 and the pulp transfer assembly 200 to descend, and the lower end of the pulp transfer assembly 200 extends to the bottom of the overflow ditch 600. The first motor 241 is started to drive the conveyor belt 220 to move, and the scraper plate 230 scrapes the slurry inside the overflow ditch 600 and moves upward along the conveyor belt 220 to the pulp discharge chamber 120. The slurry in the pulp discharge chamber 120 is quickly discharged from the pulp discharge port 110 under the flushing action of the water inlet pipe 500, and flows back to the thickening tank 700 for re-precipitation. During the cleaning process, the second motor 310 is started, and the driving gear 320 rotates under the driving action of the second motor 310, and the driving gear 320 and the rotating track 330 are meshed with each other, thereby driving the rotating shaft 340 to rotate around the central axis 350, so that the slurry transfer component 200 and the slurry discharge box 100 can automatically move along the overflow ditch 600. In this way, the slurry transfer component 200 can move along the overflow ditch 600 during the scraping process, and the overflow ditch 600 can be fully cleaned.

[0076] When the cleaning is completed, the first motor 241 and the second motor 310 stop working, and the lifting drive component 410 drives the slurry box 100 and the slurry transfer assembly 200 to rise, so that the slurry transfer assembly 200 leaves the overflow ditch 600, avoiding the slurry transfer assembly 200 and the slurry box 100 from obstructing the overflow of the slurry supernatant.

[0077] On the other hand, the embodiment of the utility model further provides a thickener, which includes a thickener overflow ditch deposited slurry cleaning device as provided in any one of the embodiments of the first aspect. Since the thickener overflow ditch deposited slurry cleaning device is provided, the overflow ditch 600 can be cleaned regularly to avoid excessive slurry in the overflow ditch 600, and can also avoid safety accidents such as drowning of workers during the process of cleaning the overflow ditch 600.

[0078] 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. A device for cleaning slurry deposited in a thickener overflow ditch, characterized in that: include: A pulp discharge box (100), wherein a pulp discharge cavity (120) is provided in the pulp discharge box (100), and the pulp discharge box (100) is further provided with a pulp discharge port (110), wherein the pulp discharge port (110) is in communication with the pulp discharge cavity (120); The pulp transfer assembly (200) comprises a conveyor belt (220) and a conveyor drive component (240), wherein at least one pulp scraper (230) is provided on the conveyor belt (220), the upper end of the conveyor belt (220) extends into the pulp outlet cavity (120), the conveyor belt (220) is arranged to be inclined downward, and the conveyor drive component (240) is drivingly connected to the conveyor belt (220) to drive the pulp scraper (230) to move along the extension direction of the conveyor belt (220).

2. The thickener overflow ditch sediment slurry cleaning device according to claim 1, characterized in that: The slurry transfer assembly (200) further comprises a slurry transfer box (210), a slurry transfer chamber (211) being provided in the slurry transfer box (210), the slurry transfer box (210) being arranged to be inclined downward along the extension direction of the conveyor belt (220), the conveyor belt (220) being arranged in the slurry transfer chamber (211), the slurry transfer chamber (211) being provided with openings at the upper and lower ends respectively, the upper end of the slurry transfer box (210) being connected to the slurry outlet box (100), and the slurry transfer chamber (211) being communicated with the slurry outlet chamber (120).

3. The thickener overflow ditch sediment slurry cleaning device according to claim 1, characterized in that: The transmission driving component (240) comprises a first motor (241), a driving wheel (242) and a driven wheel (243); the driving wheel (242) and the driven wheel (243) are respectively arranged at the upper and lower ends of the conveyor belt (220); the conveyor belt (220) is sleeved on the driving wheel (242) and the driven wheel (243); the first motor (241) is drivingly connected to the driving wheel (242).

4. The thickener overflow ditch sediment slurry cleaning device according to claim 3, characterized in that: The driving wheel (242) and the driven wheel (243) are both sprocket wheels, the conveyor belt (220) is a chain, and the driving wheel (242) and the driven wheel (243) are respectively meshed and connected with the conveyor belt (220).

5. The thickener overflow ditch sediment slurry cleaning device according to claim 1, characterized in that: The angle between the conveyor belt (220) and the horizontal plane is greater than or equal to 30° and less than or equal to 60°.

6. The thickener overflow ditch sediment slurry cleaning device according to claim 1, characterized in that: The thickener overflow ditch deposited slurry cleaning device also includes: A water inlet pipe (500), wherein the water inlet pipe (500) is connected to the pulp discharge box (100) and is arranged opposite to the pulp discharge port (110).

7. The thickener overflow ditch sediment slurry cleaning device according to claim 1, characterized in that: The thickener overflow ditch deposited slurry cleaning device also includes: The power mechanism (300) comprises a central shaft (350), a rotating shaft (340), a rotating track (330), a driving gear (320) and a rotating driving component, wherein the rotating track (330) is annular and is coaxially arranged with the central shaft (350), the rotating shaft (340) is arranged along the radial direction of the rotating track (330), one end of the rotating shaft (340) is rotationally connected to the central shaft (350), and the other end is rotationally connected to the driving gear (320), and the driving gear (320) is (320) is coaxially arranged with the rotating shaft (340), the upper end of the rotating track (330) is provided with a toothed structure, the driving gear (320) is meshingly connected with the toothed structure, the rotating driving component is drivingly connected with the driving gear (320) to drive the driving gear (320) to rotate along the rotating track (330) and drive the rotating shaft (340) to rotate around the central axis (350), and the rotating shaft (340) is connected to the pulp discharge box (100).

8. The device for cleaning slurry deposited in the overflow ditch of a thickener according to claim 7, characterized in that: The power mechanism (300) further comprises a supporting wheel (370) and a pressure-bearing track (360); the pressure-bearing track (360) is annular and is coaxially arranged with the rotating track (330); the supporting wheel (370) is rollingly connected to the pressure-bearing track (360); and the axle center of the supporting wheel (370) is connected to the rotating shaft (340).

9. The thickener overflow ditch sediment slurry cleaning device according to claim 7, characterized in that: The thickener overflow ditch deposited slurry cleaning device also includes: The lifting mechanism (400) comprises a lifting drive component (410) and a mounting plate (420), wherein the mounting plate (420) is connected to the rotating shaft (340), the body of the lifting drive component (410) is connected to the mounting plate (420), and the driving end of the lifting drive component (410) is connected to the pulp discharge box (100) to drive the pulp discharge box (100) to move in the up and down directions.

10. A thickener, characterized in that: It comprises a thickener overflow ditch deposited slurry cleaning device as described in any one of claims 1 to 9.

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