Efficient slag removal concentration tank and method

Abstract

The invention belongs to the technical field of water treatment equipment, and particularly discloses an efficient slag removal concentration tank and method. Comprising a pool body module, a stirring groove formed in the middle of a bottom plate and a driving module arranged along the central axis of a pool cavity, and the driving module comprises a driving motor and a central transmission shaft; the mud scraping module is arranged on the central transmission shaft and comprises a side wall scraping plate unit and a bottom wall scraping plate unit, one end of the side wall scraping plate unit is attached to the side wall, and one end of the bottom wall scraping plate unit is attached to the bottom plate in parallel; the side wall scraper blade unit and the bottom wall scraper blade unit are driven by the central transmission shaft to rotate so as to respectively scrape mud on the side wall and the bottom plate; the stirring module is arranged at the bottom end of the central transmission shaft and in the stirring groove, and the stirring module is fixedly connected with the central transmission shaft and rotates under the driving action of the central transmission shaft. According to the invention, efficient concentration and separation of muddy water are realized, and the efficiency and stability of the whole concentration process are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of water treatment equipment, and more specifically, relates to a high-efficiency slag cleaning and concentration tank and method. Background Art

[0002] Municipal sewage treatment plants and industrial wastewater treatment stations often use a combination of physical and chemical methods and biological methods to treat wastewater. A central drive scraper is a common environmentally friendly device for sewage treatment, commonly used in sewage treatment tanks such as primary sedimentation tanks, flotation tanks, and sludge thickening tanks. Sludge-laden sewage flows into the thickening tank. As the flow rate decreases, the sludge settles to the bottom and walls of the thickening tank. The supernatant flows out of the tank through the overflow weir plate. The scraper blades at the bottom of the scraper scrape the sludge and transport it to the mud outlet in the middle of the bottom, completing the subsequent mud discharge process.

[0003] At present, the common center-drive scraper in the sludge thickening tank can only clean the sludge at the bottom of the thickening tank due to the limitations of the scraper blade. It will inevitably lead to sludge accumulation on the side wall of the tank, affecting the sludge discharge efficiency. In addition, the scraper on the market has a cross-shaped structure. The connection between the scraper center rod and the transmission arm is the main force point of the mechanical transmission. Due to the resistance generated by the scraping and the water flow resistance, this transmission part will become a fragile point that is easily damaged during the use stage as the use time increases. Inevitably, since the top of the tank is a semi-closed structure, due to objective reasons such as natural weather, light debris such as leaves and petals can easily float into the tank.

[0004] Summary of the invention (the same as the claims will not be written first)

[0005] In response to the above defects or improvement needs of the prior art, the present invention aims to provide an efficient slag cleaning and thickening tank, in which bolts are installed at the thickening bars to reinforce the side wall scraper fastening steel plates. The scraper bars can be freely extended and retracted by loosening or tightening the bolts. While ensuring the cleaning of the side wall sludge, it can be adjusted according to the different sizes of the thickening tank, thereby increasing the versatility of the machine; a stainless steel fixing bracket is welded on the top of the scraper center rod to fix the slag scraper, and the slag scraper is fixed on the rubber belt. At the same time, during the daily operation of the scraper, under the action of water flow resistance, the slag scraper is gradually pushed by the water flow, and the slag scraper drives the rubber belt, and the rubber belt drives the transmission wheel to rotate, further pushing the slag baffle toward the sludge hopper. After the slag is pushed into the sludge hopper by the slag baffle, it is discharged into the filter screen in the slag discharge inspection well through the slag discharge pipe at the bottom of the sludge hopper. The filter screen filters the impurities and then discharges them into the sewage pipe.

[0006] To achieve the above objectives, according to one aspect of the present invention, a high-efficiency slag cleaning and concentrating tank is proposed, comprising a tank body module, wherein the tank body module comprises side walls, a bottom plate, and a tank cavity with an open top formed by the side walls and the bottom plate, wherein a water inlet pipe is provided on the side wall.

[0007] The pool body module further includes a stirring groove provided in the middle of the bottom plate, wherein the top surface of the stirring groove is connected to the lowest edge line of the bottom plate;

[0008] A drive module is arranged along the central axis of the pool cavity, the drive module comprising a drive motor and a central transmission shaft fixedly connected to a power output shaft of the drive motor;

[0009] a mud scraping module provided on the central transmission shaft, the mud scraping module comprising a side wall scraper unit with one end being in contact with the side wall and a bottom wall scraper unit with one end being in contact with the bottom plate in parallel, the side wall scraper unit and the bottom wall scraper unit being driven by the central transmission shaft to rotate to scrape mud off the side wall and the bottom plate respectively;

[0010] A stirring module is provided at the bottom end of the central transmission shaft and in the stirring groove. The stirring module is fixedly connected to the central transmission shaft and rotates under the driving action of the central transmission shaft to stir the concentrated mud settled in the stirring groove, so that the concentrated mud is discharged from the pipe provided at the bottom of the stirring groove in a flowing manner.

[0011] As further preferred, the mud scraping module includes:

[0012] a support arm unit fixedly connected to the central transmission shaft, the support arm unit being provided with a plurality of concentrating bars arranged parallel to the central transmission shaft, the bottoms of the plurality of concentrating bars being fixedly connected to a bottom wall scraper unit, and the side wall scraper unit being fixedly connected to a plurality of concentrating bars arranged closest to the side wall;

[0013] Preferably, the bottom wall scraper unit includes a telescopically adjustable bottom wall scraper.

[0014] As a further preferred embodiment, the side wall scraper unit includes two fixed steel plates arranged parallel to the plane where the support arm unit is located, the two fixed steel plates are fixedly connected by multiple reinforcement bolt assemblies, and the side wall scraper assembly is arranged between the two fixed steel plates and is fixedly connected to multiple reinforcement bolt assemblies.

[0015] As a further preferred embodiment, the side wall scraper assembly comprises a scraper fixing steel plate and a side wall scraper that are fixedly connected, and the scraper fixing steel plate is provided with a plurality of steel plate reserved slots;

[0016] Preferably, there are two support arm units, and the two support arm units are symmetrically arranged about the central transmission shaft. The support arm unit includes a transverse arm, a vertical arm and an oblique arm connected in sequence. The other end of the transverse arm is fixedly connected to the central transmission shaft, and the transverse arm is arranged horizontally. The other end of the oblique arm is fixedly connected to the central transmission shaft, and the oblique arm is arranged parallel to the base plate.

[0017] As a further preferred embodiment, the module further includes a scum cleaning module disposed on the top of the pool body module, the scum cleaning module including a fixed bracket, the fixed bracket being fixedly connected to the central transmission shaft, a scum cleaning unit being disposed at the bottom of the fixed bracket, the center of the scum cleaning unit being aligned with the water level in the pool cavity, and being driven by the central transmission shaft to rotate to disturb the water flow, causing scum on the water surface to move along the scum cleaning unit toward the side wall;

[0018] Preferably, the scum cleaning module further comprises a scum bucket, which is provided below the end of the scum cleaning unit close to the side wall and is used to recover scum that moves above the scum bucket.

[0019] Preferably, the scum cleaning unit is connected to the fixed bracket via two vertically parallel telescopic rods;

[0020] A transmission wheel is provided at the connection between the telescopic rod and the scum cleaning unit. The transmission wheel includes a rotating bearing and a rotating shaft provided in the middle of the rotating bearing and rotatably connected to the rotating bearing. The outer wall of the rotating bearing is fixedly connected to the telescopic rod, and the rotating shaft is fixedly connected to the scum cleaning unit.

[0021] As a further preference, the scum cleaning unit includes a rotating body and a scum scraper provided on the rotating body, the scum scraper is spirally arranged along the radial direction of the pool cavity, and rotates under the action of water resistance to drive the scum on the water surface to the scum bucket.

[0022] As a further preference, the stirring module includes a stirring shaft fixedly connected to the central transmission shaft, and a plurality of stirring blades arranged along the circumference of the stirring shaft, and the stirring blades are fixedly connected to the stirring shaft via a hinge.

[0023] As a further preferred embodiment, a working bridge is provided above the pool body module, and a guide tube is provided at the bottom of the working bridge. The guide tube is sleeved on the central transmission shaft and is provided above the mud scraper module; the guide tube is connected to the water inlet pipe to change the direction and flow rate of water entering the pool cavity.

[0024] As a further preferred embodiment, the water inlet pipe is provided with an electric valve;

[0025] The slag cleaning module also includes a slag discharge pipe, one end of which is connected to the slag bucket, and the other end is connected to a slag discharge inspection well, and a filter grid is provided in the slag discharge inspection well.

[0026] According to another aspect of the present invention, there is also provided a method for concentrating muddy water in an efficient slag cleaning and concentrating tank, which is implemented using the device according to any one of the claims, comprising:

[0027] The water inlet pipe discharges muddy water into the pool cavity. When the muddy water reaches a specified height, the drive motor works to drive the central transmission shaft to rotate, while the water inlet pipe keeps filling with water.

[0028] The central drive shaft drives the scraper module to scrape off the mud deposited on the side walls and bottom plate. At the same time, the rotation of the scraper module causes the water flow at the corresponding position to generate a vortex. The mud enters the stirring groove under the combined action of gravity and vortex force, forming concentrated mud in the stirring groove.

[0029] The central transmission shaft drives the stirring module to rotate, so that the concentrated mud entering the stirring groove is discharged from the pipe at the bottom of the stirring groove in a uniform concentration and maintained flowing manner. At the same time, clean water flows out from the drain pipe located on the upper part of the side wall.

[0030] In general, the above technical solutions conceived by the present invention have the following technical advantages compared with the existing technology:

[0031] 1. The present invention achieves efficient concentration and separation of mud and water by optimizing the tank structure, stirring and scraping design, and scum cleaning functions, thereby improving the efficiency and stability of the entire concentration process, while reducing equipment operating costs and maintenance workload, and has significant comprehensive benefits.

[0032] 2. The present invention can achieve efficient slag removal and mud-water separation: through the synergistic effect of the unique mud scraping module, stirring module and scum cleaning module, efficient removal of scum on the pool wall, pool bottom and water surface is achieved. At the same time, combined with the stirring groove and stirring module, the concentrated mud can be discharged in a flowing manner, and the clean water flows out from the drain pipe, which improves the efficiency of mud-water separation, reduces the residence time of mud and water in the pool, and speeds up the entire mud and water treatment process.

[0033] 3. This invention improves concentration efficiency: The inlet pipe, combined with the guide tube, changes the direction and flow rate of muddy water entering the concentration tank, extending the sludge settling time and improving the sedimentation effect. The concentration bars rotate with the central drive shaft, generating a centrifugal vortex effect. The spacing between the bars creates a hydraulic gradient, accelerating the sinking of flocculent sludge and further improving the concentration effect.

[0034] 4. The present invention can prevent sludge from compacting and clogging: the spiral blades of the stirring module generate axial shear force when rotating, continuously stirring the sludge, preventing the sludge from compacting in the stirring groove, ensuring the smooth discharge of concentrated sludge, avoiding problems such as pipeline blockage caused by sludge accumulation, and improving the operating stability and reliability of the thickening tank.

[0035] 5. The present invention has a high degree of automation: the entire concentration process is achieved by driving the central transmission shaft through a driving motor. Each module works in coordination under the drive of the central transmission shaft. At the same time, it is equipped with automation equipment such as electric valves to achieve automatic control, reduce manual intervention, reduce labor intensity, and improve work efficiency.

[0036] 6. The present invention has strong adaptability: the bottom wall scraper unit of the sludge scraper module can be telescopically adjusted, and the telescopic length of the scraper of the side wall scraper assembly can be adjusted by tightening the stainless steel reinforcement bolts. It can adapt to changes in different tank sizes and sludge amounts, thereby improving the adaptability and flexibility of the thickening tank.

[0037] 7. The present invention can reduce the impact of scum on subsequent treatment: the scum cleaning module can effectively collect scum on the water surface and discharge it into the concentration tank, preventing scum from entering the subsequent treatment system, reducing pollution and blockage of subsequent treatment equipment, and ensuring the normal operation of the entire sewage treatment system.

[0038] 8. The present invention realizes efficient concentration, slag removal and separation of mud and water through the rational design and coordinated operation of each module, improves the processing efficiency and quality of the concentration tank, reduces operating costs, and reduces environmental pollution, with significant economic and social benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 Schematic diagram of a concentrator according to an embodiment of the present invention;

[0040] Figure 2 Schematic diagram of the reinforcement of the side wall scraper unit involved in an embodiment of the present invention;

[0041] Figure 3 is a structural diagram of a fixed steel plate according to an embodiment of the present invention;

[0042] Figure 4 It is a structural schematic diagram of the side wall scraper assembly involved in an embodiment of the present invention.

[0043] In all the drawings, the same reference numerals represent the same technical features, specifically: 1-tank body module, 11-side wall, 12-bottom plate, 13-stirring groove, 14-platform, 15-rail, 16-working bridge, 17-water inlet pipe, 18-electric gate valve, 19-fixed frame, 2-drive module, 21-drive motor, 22-center transmission shaft, 23-rigid coupling, 221-guide tube, 222-support rod, 3-scraper module, 31-support arm unit, 311-horizontal arm, 312-oblique arm, 313-vertical arm, 32 -Concentrating bars, 33-side wall scraper unit, 331-fixed steel plate, 332-reinforcement bolt assembly, 333-side wall scraper assembly, 3311-bolt hole, 3331-side wall scraper, 3332-scraper fixing steel plate, 3333-steel plate reserved slot, 4-stirring module, 42-stirring blade, 43-hinge, 44-embedded steel plate, 5-slag cleaning module, 51-fixed bracket, 511-vertical rod, 52-slag scraper, 521-drive wheel, 53-slag bucket, 54-slag discharge pipe, 55-slag discharge inspection well, 56-filter grid. DETAILED DESCRIPTION

[0044] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0045] The present invention aims to provide a high-efficiency slag cleaning and thickening tank. Stainless steel bolts are installed at the thickening bars of a traditional thickener to reinforce the side wall scraper and fasten the steel plate. The scraper can be freely extended and retracted by tightening the bolts. While ensuring the cleaning of the side wall sludge, it can be adjusted according to the size of the thickening tank, thereby increasing the versatility of the machine. Galvanized reinforced steel pipes are welded at the thickening bars to relieve the stress at the connection between the scraper center rod and the transmission arm. A stainless steel fixing bracket is welded at the top of the scraper center rod to fix the slag scraper. The slag scraper is fixed on the rubber belt. At the same time, during the daily operation of the scraper, under the action of water flow resistance, the slag scraper is gradually pushed by the water flow, the slag scraper drives the rubber belt, and the rubber belt drives the transmission wheel to rotate, further pushing the slag baffle toward the sludge hopper. After the slag is pushed into the sludge hopper by the slag baffle, it is discharged into the sludge discharge inspection well through the slag discharge pipe at the bottom of the sludge hopper. The filter grid filters the impurities and then discharges them into the sewage pipe.

[0046] Specifically, such as Figures 1-4As shown, this embodiment provides a high-efficiency slag cleaning and concentrating tank, including a tank body module 1, the tank body module 1 includes a side wall 11, a bottom plate 12 and a tank cavity with an open top surrounded by the side wall 11 and the bottom plate 12, the side wall 11 is provided with a water inlet pipe 17, the tank body module 1 also includes a stirring groove 13 provided in the middle of the bottom plate 12, the top surface of the stirring groove 13 is connected to the lowest edge line of the bottom plate 12; a driving module 2 is arranged along the central axis of the tank cavity, the driving module 2 includes a driving motor 21 and a central transmission shaft 22 fixedly connected to the power output shaft of the driving motor 21; a sludge scraping module 3 is provided on the central transmission shaft 22, The mud scraping module 3 includes a side wall scraper unit 33 with one end being fitted against the side wall 11 and a bottom wall scraper unit with one end being fitted parallel to the bottom plate 12. The side wall scraper unit 33 and the bottom wall scraper unit rotate under the drive of the central transmission shaft 22 to scrape off the mud on the side wall 11 and the bottom plate 12 respectively; a stirring module 4 is arranged at the bottom end of the central transmission shaft 22 and in the stirring groove 13. The stirring module 4 is fixedly connected to the central transmission shaft 22 and rotates under the drive of the central transmission shaft 22 to stir the concentrated mud settled in the stirring groove 13, so that the concentrated mud is discharged from the pipe arranged at the bottom of the stirring groove 13 in a flowing manner.

[0047] In this embodiment, the scraper module 3 is located at the bottom of the pool cavity and is used to scrape away mud that has settled on the side walls and bottom plate. Simultaneously, it applies a vortex force to the mud, causing it to move and settle toward the stirring groove 13 at the bottom under the combined action of gravity, while the clean water remains in the pool cavity above the scraper module 3. Therefore, in this embodiment, a drain pipe is provided on the side wall 11 above the scraper module 3 to drain the clean water, thereby separating the mud from the clean water and obtaining concentrated mud. In this embodiment, when the entire mechanism begins operation, the water intake of the water inlet pipe is equal to the amount of mud discharged above the clean water.

[0048] Furthermore, in this embodiment, the rotation speed of the central drive shaft 22 should not be too fast. A too fast rotation speed would significantly disturb the water flow in the tank, hindering the sedimentation of the mud. Therefore, the rotation speed of the central drive shaft 22 needs to be reasonably designed so that the scraping module 3, during its rotation, disturbs the water flow to a certain extent, forming a vortex that forces the mud to flow toward the center. At the same time, the mud, under the action of gravity, settles toward the stirring groove 13, thereby separating the mud from the clean water.

[0049] Based on any one of the above embodiments or a combination of multiple embodiments, in this embodiment, the sludge scraping module includes: a support arm unit fixedly connected to the central transmission shaft, the support arm unit is provided with a plurality of concentrating bars arranged parallel to the central transmission shaft, the bottoms of the plurality of concentrating bars are fixedly connected to a bottom wall scraper unit, and the side wall scraper unit is fixedly connected to a plurality of concentrating bars arranged closest to the side wall. Preferably, the bottom wall scraper unit includes a telescopically adjustable bottom wall scraper.

[0050] Based on any of the above embodiments or a combination of multiple embodiments, in this embodiment, the side wall scraper unit includes two fixed steel plates arranged parallel to the plane where the support arm unit is located, and the two fixed steel plates are fixedly connected by multiple reinforcement bolt assemblies. The side wall scraper assembly is arranged between the two fixed steel plates and is fixedly connected with multiple reinforcement bolt assemblies.

[0051] Based on any of the above embodiments or a combination of multiple embodiments, in this embodiment, the side wall scraper assembly includes a scraper fixing steel plate and a side wall scraper fixedly connected, and the scraper fixing steel plate is provided with a plurality of steel plate reserved slots;

[0052] Preferably, there are two support arm units, and the two support arm units are symmetrically arranged about the central transmission shaft. The support arm unit includes a transverse arm, a vertical arm and an oblique arm connected in sequence. The other end of the transverse arm is fixedly connected to the central transmission shaft, and the transverse arm is arranged horizontally. The other end of the oblique arm is fixedly connected to the central transmission shaft, and the oblique arm is arranged parallel to the base plate.

[0053] Based on any of the foregoing embodiments or a combination of multiple embodiments, this embodiment further includes a scum cleaning module provided on the top of the pool body module, the scum cleaning module including a fixed bracket, the fixed bracket being fixedly connected to the central transmission shaft, a scum cleaning unit being provided at the bottom of the fixed bracket, the center of the scum cleaning unit being consistent with the water level in the pool cavity, and being driven by the central transmission shaft to rotate to disturb the water flow, so that scum on the water surface moves along the scum cleaning unit toward the side wall;

[0054] Preferably, the scum cleaning module further comprises a scum bucket, which is provided below the end of the scum cleaning unit close to the side wall and is used to recover scum that moves above the scum bucket.

[0055] Preferably, the scum cleaning unit is connected to the fixed bracket via two vertically parallel telescopic rods;

[0056] A transmission wheel is provided at the connection between the telescopic rod and the scum cleaning unit. The transmission wheel includes a rotating bearing and a rotating shaft provided in the middle of the rotating bearing and rotatably connected to the rotating bearing. The outer wall of the rotating bearing is fixedly connected to the telescopic rod, and the rotating shaft is fixedly connected to the scum cleaning unit.

[0057] Based on any of the above embodiments or a combination of multiple embodiments, in this embodiment, the scum cleaning unit includes a rotating body and a scum scraper provided on the rotating body. The scum scraper is spirally arranged along the radial direction of the pool cavity and rotates under the action of water resistance to drive the scum on the water surface to the scum bucket.

[0058] Based on any of the above embodiments or a combination of multiple embodiments, in this embodiment, the stirring module includes a stirring shaft fixedly connected to the central transmission shaft, and a plurality of stirring blades arranged along the circumference of the stirring shaft, and the stirring blades are fixedly connected to the stirring shaft through a hinge.

[0059] Based on any of the above embodiments or a combination of multiple embodiments, in this embodiment, a working bridge is arranged above the pool body module, and a guide tube is provided at the bottom of the working bridge. The guide tube is sleeved on the central transmission shaft, and the guide tube is arranged above the mud scraper module; the guide tube is connected to the water inlet pipe to change the direction and flow rate of water entering the pool cavity.

[0060] Based on any of the above embodiments or a combination of multiple embodiments, in this embodiment, an electric valve is provided on the water inlet pipe; the slag cleaning module also includes a slag discharge pipe, one end of the slag discharge pipe is connected to the slag bucket, and the other end is connected to the slag discharge inspection well, and a filter screen is provided in the slag discharge inspection well.

[0061] Example 2

[0062] Based on any of the above embodiments or a combination of multiple embodiments, in this embodiment, a method for concentrating muddy water in an efficient slag cleaning and concentrating tank includes:

[0063] The water inlet pipe discharges muddy water into the pool cavity. When the muddy water reaches a specified height, the drive motor works to drive the central transmission shaft to rotate, while the water inlet pipe keeps filling with water.

[0064] The central drive shaft drives the scraper module to scrape off the mud deposited on the side walls and bottom plate. At the same time, the rotation of the scraper module causes the water flow at the corresponding position to generate a vortex. The mud enters the stirring groove under the combined action of gravity and vortex force, forming concentrated mud in the stirring groove.

[0065] The central transmission shaft drives the stirring module to rotate, so that the concentrated mud entering the stirring groove is discharged from the pipe at the bottom of the stirring groove in a uniform concentration and maintained flowing manner. At the same time, clean water flows out from the drain pipe located on the upper part of the side wall.

[0066] Based on any of the above embodiments or a combination of multiple embodiments, in this embodiment, if Figure 1 As shown, the efficient slag cleaning and concentration tank includes: a tank body module 1, and a driving module 2, a mud scraping module 3, a stirring module 4, and a slag cleaning module 5 arranged on the tank body module, wherein:

[0067] The pool body module 1 includes a side wall 11, a bottom plate 12 and a stirring groove 13 provided in the middle of the bottom plate 12. The side wall is a hollow cylindrical structure, and the bottom plate 12 is a conical structure with a slope. The stirring groove 13 is provided in the middle of the bottom plate 12.

[0068] In one embodiment, the tank body module 1 further includes a platform 14 disposed at the top of the side wall 11 and arranged along the circumferential outer side of the side wall 11. A railing 15 is provided on the platform 14. A working bridge 16, a water inlet pipe 17, an electric gate valve 18, and a fixing bracket 19 are also provided at the top of the side wall 11. A section of the water inlet pipe 17 extends horizontally from the sludge drainage pool, with an electric gate valve 18 installed in the middle. The water inlet pipe 17 then extends vertically upward along the tank body 1, passes through the railing, is fixed by the fixing bracket 19, and then continues to extend horizontally to the right to the guide tube 221 of the central rotating shaft 22. A working bridge 16 is also provided above the tank body 1. A driving motor and a vertical main shaft are installed on the working bridge 16. The driving motor drives the main shaft to rotate. The main shaft is connected to at least two mounting brackets located in the concentration tank. A number of vertical mounting rails are provided on the side of the mounting bracket. Vertical guide rods are inserted into the mounting rails from top to bottom, and the lower ends of the vertical guide rods are connected to the scraper unit; the mounting bracket is also connected to an end rail at the end away from the main shaft, and an end guide rod is inserted into the end rail from top to bottom. A side scraper is provided on the outside of the end guide rod, and the side scraper is in contact with the side wall of the concentration tank.

[0069] The drive module 2 is arranged along the central axis of the pool body module 1 and includes a drive motor 21 and a central transmission shaft 22 connected to the power output shaft of the drive motor 21. The central transmission shaft 22 extends all the way to the top of the stirring groove 13. The upper half of the central transmission shaft 22 has a guide tube 221, which is welded to the central rotating shaft 22 to ensure that it does not rotate with the shaft. At the same time, a stainless steel fixing bracket is welded to the top of the pool body, and a scraper fixing bolt is used to connect the scum scraper so that the scum scraper can rotate up and down. This design not only achieves effective cleaning of scum, but also maintains the stability of the guide tube. The part where the lower part of the guide tube 221 intersects with the central transmission shaft 22 is connected to the central transmission shaft 22 by welding a rigid coupling 23. In this part, several radially distributed support rods 222 are also connected to the concentration bars 32 above the sludge scraper module 3. The drive motor 21 is used to drive the central transmission shaft 22 to rotate.

[0070] The scraping module 3 is provided with one or more, preferably more, scraping modules 3 along the radial direction of the central transmission shaft 22, and the scraping modules 3 are evenly arranged along the radial direction of the central transmission shaft 22. The scraping module 3 includes a support arm unit 31, which is fixedly connected to the central transmission shaft 22 and rotates under the rotation of the central transmission shaft 22. The support arm unit 31 includes a horizontal arm 311, an oblique arm 312 arranged parallel to the bottom plate 12, and a vertical arm 313 connecting the horizontal arm 311 and the oblique arm 312. The scraping module 3 also includes a plurality of concentrating bars 32 fixed on the support arm unit 31 and a side wall scraper unit 33 provided on the concentrating bars 32. The side wall scraper unit 33 includes a fixed steel plate 331, a reinforcing bolt assembly 332, a side wall scraper assembly 333, and a reinforcing bolt. The sludge scraping module 3 functions by scraping sludge from the bottom of the tank to the sludge collection tank via bottom wall scraper units 33. Driven by the drive module 2, the rotation of thickening bars 32 accelerates sludge sedimentation. Thickening bars 32 are attached to side wall scraper fastening plates 331 via stainless steel reinforcement bolts 334. Side wall scrapers 333, made of a composite rubber-stainless steel laminate, are inserted into the reserved slots 331 in the steel plate. The extension and retraction of side wall scrapers 333 are adjusted by tightening the stainless steel reinforcement bolts, effectively scraping away sludge adhering to the tank wall.

[0071] The stirring module 4 is located in the stirring groove 13 in the middle of the base plate 12. The stirring module 4 includes multiple stirring blades 42, a hinge 43, a stirring shaft, and an embedded steel plate 44. The stirring blades 42 are spaced apart from the stirring groove 13 in the upper, lower, and left and right directions. The stirring blades 42 are connected to the stirring shaft via a hinge 43, which is in turn connected to the central rotating shaft and rotates under the influence of the central rotating shaft.

[0072] The scum cleaning module 5 is located at the lower right side of the working bridge and includes a fixed bracket 51, a scum scraper 52, a scum bucket 53, a scum discharge pipe 54, a flange 55, a scum discharge inspection well 56, and a filter screen 57. The fixed bracket 51 includes two vertical rods 511, which are similar to two crosses and are integrated with the rubber conveyor belt 51. The combination of the scum scraper 52 and the fixed bracket 51 is in the form of a spiral, the difference being that the center is hollow and there are two transmission wheels 521 at each end of the scum scraper 52. The transmission wheel 521 is connected to the scum scraper 52 through a gear. The scum bucket 53 is located at the lower right side of the scum scraper 52, close to the scum scraper 52, and is connected to the scum discharge pipe 54 by gravity drainage through a pipe. The scum discharge pipe 54 is connected to the middle position of the scum discharge inspection well 56. A filter screen 57 is placed inside the scum discharge inspection well 56. On the right side of the filter grid 57 where a certain space is reserved, a slag discharge pipe 54 is provided at one end thereof and is connected to the lower right part of the slag discharge inspection well 56 by means of a threaded connection in a sealed manner.

[0073] Based on any one or a combination of the above embodiments, in this embodiment, a high-efficiency slag cleaning and concentrating tank includes a drive motor, a central drive shaft, a sludge scraping module, and a stirring module. The drive motor is connected to the central drive shaft, the sludge scraping module is located in the middle of the central drive shaft, and the stirring module is sleeved on the lower portion of the central drive shaft. The stirring module is reinforced with a pre-embedded steel plate at the tank bottom to ensure the stability of the entire machine. Generally, the stirring module is rotatably connected to the pre-embedded steel plate at the tank bottom via a bearing.

[0074] Preferably, the scraper module includes two groups of support arm units symmetrically fixed on both sides of the central transmission shaft, and a side wall scraper unit is fixedly connected to the bottom of each group of support arm units. The side wall scraper unit is in contact with the side wall of the sludge thickening tank, and a plurality of thickening bars are fixedly connected to the top of each group of support arm units. Two groups of transverse arms are symmetrically fixed on both sides of the central transmission shaft, and the transverse arms and the oblique arms are fixedly connected to the thickening bars. The top of each group of transverse arms is connected to the central transmission shaft by connecting at least two pull rods.

[0075] Preferably, the stirring module is arranged in the sludge collecting tank at the bottom of the sludge thickening tank, and is driven by a driving motor, and the sludge scraping module and the stirring module rotate synchronously with the central transmission shaft.

[0076] Preferably, by providing a synchronously rotating central transmission shaft, a sludge scraping module, and a stirring module, the sludge scraping module and the stirring module rotate synchronously with the central transmission shaft under the drive action of the drive motor, and the sludge deposited on the bottom wall of the sludge thickening tank is scraped and collected by the sludge scraper, so that it is collected along the bottom wall into the sludge collecting tank, and the sludge in the sludge collecting tank is synchronously stirred by the stirring module to prevent it from settling and agglomerating, which makes it difficult to pump out. By providing a concentration grid that can rotate synchronously with the central transmission shaft, the rotation provides a sedimentation space for the flocculent sludge, accelerates the descent of the sludge, reduces the resistance to scraping, avoids the increase in the difficulty of scraping due to sludge deposition and agglomeration, and improves the concentration effect.

[0077] Preferably, the bottom plate of the sludge thickening tank has a conical structure, and the angle between the bottom plate and the side wall of the sludge thickening tank is 100 to 150 degrees, so that the sludge can be gathered along the bottom plate to the central stirring groove. The oblique arm is parallel to the bottom wall of the sludge thickening tank, which facilitates the installation of the scraper parallel to the bottom wall to improve the scraping efficiency.

[0078] Preferably, in some possible embodiments, the front working surface of the side wall scraper forms an angle of 20 to 80 degrees with the bottom surface of the side wall scraper, the bottom wall scraper unit is in contact with the bottom wall of the sludge thickening tank, and the axial direction of each scraper of the bottom wall scraper unit forms an angle of 10 to 60 degrees with the long end direction of the oblique arm. By providing an inclined working surface on the side wall scraper, the inability to effectively scrape sludge due to caking is avoided, the scraping efficiency of the side wall scraper can be improved, the scraping resistance during rotation can be reduced, the energy consumption of the drive motor 11 can be reduced, and the service life of the side wall scraper can be extended; the side wall scraper and the long end direction of the oblique arm are both arranged obliquely, which can increase the contact area between the side wall scraper and the sludge, improve the scraping efficiency, and gather the sludge to the central sludge collecting trough. It can also reduce the scraping resistance and provide a certain escape space for the water flow in the sludge.

[0079] Preferably, the side wall scrapers on the oblique arm on one side of the central transmission shaft and the side wall scrapers on the oblique arm on the other side are symmetrically distributed with the axis of the central transmission shaft as the center. In the process of the driving motor driving the central transmission shaft to rotate, the side wall scrapers on the left and right sides can not only improve the mud scraping effect, but also play a role in gravity balance.

[0080] Preferably, galvanized reinforced steel pipes are symmetrically welded to the concentrating bars on both sides of the central rotating shaft. The reinforcement of the steel pipes can resist the water flow resistance caused by the operation of the concentrator, thereby alleviating the stress on the central transmission shaft and extending the service life of the concentrator.

[0081] Preferably, the side wall scraper fastening steel plate is installed at the position of the concentration bar through stainless steel reinforcement bolts. Two bolt fixing grooves are reserved on the side wall scraper fastening steel plate. The side wall scraper is adjusted by loosening and stretching the stainless steel reinforcement bolts to meet the use needs of concentration tanks of different sizes. At the same time, the side wall scraper is a consumable material, and the stainless steel reinforcement bolts that can be freely loosened and tightened make it easy to disassemble, thereby facilitating later operation and maintenance.

[0082] Preferably, a guide tube is further provided above the scraping module, and the guide tube is sleeved on the outside of the central transmission shaft. A working bridge is fixedly provided above the sludge thickening tank, and the guide tube is fixedly connected to the working bridge 7.

[0083] Preferably, a water inlet pipe from the sludge discharge pool is reserved on the side of the sludge thickening tank, and the sludge and water transportation is controlled by an electric butterfly valve.

[0084] Preferably, the muddy water flows into the guide tube through the water inlet pipe, thereby changing the direction of the muddy water entering the sludge concentration tank, reducing the water flow speed, extending the sludge sedimentation time, and improving the sludge settling effect.

[0085] Preferably, the scum scraper on the top of the central transmission shaft and the central rotating shaft are in daily operation. Under the action of water flow resistance, the scum scraper is gradually pushed by the water flow, and the scum scraper drives the rubber transmission belt, and the rubber transmission belt drives the transmission wheel to rotate, and further, the scum scraper is pushed to push the scum toward the scum bucket. After the scum is pushed into the scum bucket by the scum scraper, it is discharged into the filter screen in the scum discharge inspection well through the scum discharge pipe at the bottom of the scum bucket. The filter screen filters the impurities and then discharges them into the sewage pipe.

[0086] The workflow of the efficient slag cleaning and concentrating tank provided in this example is as follows:

[0087] In the first step, muddy water enters the diversion tube from the water inlet pipe. The diversion tube redirects the muddy water into the sludge thickening tank, reducing water velocity, prolonging sludge settling time, and improving sedimentation efficiency. A working bridge is installed above the tank, equipped with a drive motor and a vertical central rotating shaft. The drive motor is activated and directly connected to the central drive shaft via a rigid coupling. The central drive shaft synchronously rotates the welded diagonal arms on both sides. Stainless steel bolts secure the bottom wall scraper unit below the diagonal arms. The bottom wall scraper unit conforms to the conical tank bottom at an inclination angle of 20° to 80° and rotates at a cone angle of 100° to 150°.

[0088] In the second step, driven by vortex forces and gravity, the scrapers scrape the deposited sludge along the inclined bottom wall toward the central sludge collection trough. The thickening bars welded above the inclined arms rotate with the central drive shaft, generating a centrifugal vortex effect. The spacing between the bars creates a hydraulic gradient, accelerating the sinking of the flocculent sludge.

[0089] In the third step, the concentrating bars are simultaneously fixed to the steel plates with stainless steel reinforcement bolts, and sidewall scrapers made of composite rubber and stainless steel laminate are inserted into the reserved slots in the steel plates. The extension and retraction of the scrapers are adjusted by tightening the stainless steel reinforcement bolts to scrape away sludge adhering to the tank walls in real time. The sludge collected in the mixing groove is processed by the mixing mechanism mounted below the central drive shaft. The bottom of the mixing mechanism is welded to the pre-embedded steel plate in the tank bottom. The spiral blades generate axial shear force during rotation, continuously agitating the sludge to prevent compaction.

[0090] In the fourth step, as the muddy water continuously flows out of the guide tube, the water level gradually rises. When the water level rises to the same level as the rubber conveyor belt, the scum cleaning device is triggered. The scum scraper uses a variable-pitch spiral rubber scraper design (inner ring pitch 5mm / 15° inclination, outer ring 10mm / 20° inclination). The speed is multiplied by welding the sun gear of the two-stage planetary gear set to the central rotating shaft and the planetary gears meshing with the scum brush shaft. When the central shaft rotates, it drives the rubber belt to rotate synchronously. The rubber belt forms a circular trajectory with its connection to the central rotating shaft as the center and its own length as the radius. In this way, the muddy water between the rubber belt and the scum hanging plate forms a cylinder with the same liquid level. Under the influence of water flow resistance, the scum scraper is gradually pushed by the water flow. The scum scraper drives the rubber belt, and the rubber belt drives the transmission wheel to rotate.

[0091] In the fifth step, the scum brush rotates up and down at high speed as the central shaft rotates. The muddy water scraped from the scum closest to the central shaft undergoes a spiral motion as it approaches the scraper blade. It then passes through this scraper blade and, driven by the centripetal vortex and axial thrust, is carried to the next scum scraper blade. After passing all the scrapers, the scum and muddy water are separated by the scrapers. The scum is pushed step by step in a spiral toward the scum bucket, while the muddy water flows downward into the mixing module. New muddy water continuously flows into the scum cleaning tank through the water guide. Sludge particles, accompanied by microbubbles, rise to the surface and are slowly pushed into the scum bucket in the same manner. Gravity forces the scum in the scum bucket along the scum discharge pipe into the filter screen of the scum inspection well, where it is discharged into the sewage pipe.

[0092] In the sixth step, the flow rate of muddy water entering the water pipe can be controlled by an electric gate valve. As the flow rate decreases, the sludge in the sewage settles to the bottom and wall of the thickening tank, and the supernatant flows out of the water tank through the overflow weir and is discharged from the tank. The scraper at the bottom of the scraper scrapes the sludge and transports it to the mud discharge port in the middle of the bottom to complete the subsequent mud discharge work.

[0093] Based on any of the above embodiments or a combination of multiple embodiments, in this embodiment, high-precision mud and water concentration sensors are installed at multiple key positions of the pool cavity to collect mud and water concentration data in real time. The sensor data is collected through the data acquisition module, and pre-processing operations such as filtering and denoising are performed to ensure the accuracy and reliability of the data. A mud and water concentration prediction model and a control strategy model are established using machine learning algorithms (such as neural networks), and the water inlet flow, the speed of the scraping module, and the speed of the stirring module are automatically adjusted according to real-time data. According to the instructions of the control layer, specific adjustment operations are performed by driving motors, electric valves and other equipment. A monitoring interface is set up to display the distribution of mud and water concentration in the pool cavity, the operating status of each device and other information in real time, and the control model is learned and optimized online through a feedback mechanism.

[0094] Specifically, sensors collect mud-water concentration data in real time and transmit it to the data acquisition module. This data undergoes preprocessing, including filtering and denoising. This preprocessed data is then fed into the artificial intelligence control model. Based on this input data, the control model predicts the changing trend of mud-water concentration and outputs corresponding control instructions. The execution layer adjusts the inlet flow rate, scraper module speed, and agitator module speed based on these control instructions. The monitoring system displays the operating status in real time, and the feedback data is used for online model learning and optimization.

[0095] More specifically, a neural network (e.g., a multi-layer perceptron, MLP) is used to establish a mud-water concentration prediction model. The model inputs are historical concentration data, water inlet flow, scraper module speed, and stirring module speed, and the output is the predicted mud-water concentration.

[0096] The input parameters include: the mud water concentration C(t) at the current time t (unit: g / L). The water flow rate Q(t) at the current time t (unit: m 3 / h). Scraping module speed ωs(t) (unit: r / min) at the current moment t. Stirring module speed ωb(t) (unit: r / min) at the current moment t. Time t (unit: s).

[0097] The output parameters include the predicted mud water concentration C^(t+Δt) at the next time t+Δt (unit: g / L).

[0098] The neural network structure includes: Number of input layer nodes: 4 (corresponding to C(t), Q(t), ωs(t), ωb(t)). Number of hidden layer nodes: selected according to actual needs, for example, 10 nodes. Number of output layer nodes: 1 (corresponding to C^(t+Δt)).

[0099] The hidden layer uses the ReLU activation function, and the output layer uses the linear activation function. A fuzzy controller or reinforcement learning algorithm (such as Q-learning) is used to establish a control strategy model to adjust the water flow rate, the scraping module speed, and the stirring module speed according to the predicted mud water concentration.

[0100] Input variables: Error e, the difference between the target concentration and the actual concentration. Error change rate Δe, the rate of change of the error.

[0101] Output variables: Adjustment of water flow rate ΔQ, adjustment of sludge scraping module speed Δωs, adjustment of stirring module speed Δωb.

[0102] Fuzzy rule table: A fuzzy rule table is developed based on experience or experimental data, such as:

[0103] If e is positive and Δe is positive, reduce the inlet flow rate ΔQ.

[0104] If e is negative and Δe is negative, increase the inlet flow rate ΔQ.

[0105] Reinforcement learning algorithm (Q-learning):

[0106] State space: mud-water concentration, water inlet flow, scraper module speed, stirring module speed.

[0107] Action space: increase or decrease of water inlet flow, increase or decrease of sludge scraping module speed, increase or decrease of stirring module speed.

[0108] Reward function: The reward function is designed based on factors such as whether the mud water concentration is close to the target concentration and energy consumption.

[0109] Q value update formula:

[0110]

[0111] Among them, α is the learning rate and γ is the discount factor.

[0112] Through the above scheme, intelligent control of the efficient slag cleaning and concentration tank can be achieved, the mud and water concentration efficiency can be improved, energy consumption can be reduced, and the stable and reliable operation of the system can be ensured.

[0113] It will be easily understood by those skilled in the art that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-efficiency slag cleaning and concentrating tank, comprising a tank body module (1), wherein the tank body module (1) comprises a side wall (11), a bottom plate (12), and a tank cavity with an open top formed by the side wall (11) and the bottom plate (12), wherein the side wall (11) is provided with a water inlet pipe (17), and is characterized in that: The pool body module (1) further comprises a stirring groove (13) provided in the middle of the bottom plate (12), wherein the top surface of the stirring groove (13) is connected to the lowest edge line of the bottom plate (12); A drive module (2) is arranged along the central axis of the pool cavity, the drive module (2) comprising a drive motor (21) and a central transmission shaft (22) fixedly connected to a power output shaft of the drive motor (21); A mud scraping module (3) is provided on the central transmission shaft (22), the mud scraping module (3) comprising a side wall scraper unit (33) having one end fitted with the side wall (11) and a bottom wall scraper unit having one end fitted parallel to the bottom plate (12), the side wall scraper unit (33) and the bottom wall scraper unit rotating under the drive of the central transmission shaft (22) to scrape mud off the side wall (11) and the bottom plate (12) respectively; A stirring module (4) is provided at the bottom end of the central transmission shaft (22) and in the stirring groove (13); the stirring module (4) is fixedly connected to the central transmission shaft (22) and rotates under the driving action of the central transmission shaft (22) to stir the concentrated mud settled in the stirring groove (13), so that the concentrated mud is discharged from a pipe provided at the bottom of the stirring groove (13) in a flowing manner.

2. The high-efficiency slag cleaning and concentration tank according to claim 1, characterized in that: The mud scraping module (3) comprises: a support arm unit (31) fixedly connected to the central transmission shaft (22), the support arm unit (31) being provided with a plurality of concentration bars (32) arranged parallel to the central transmission shaft (22), the bottoms of the plurality of concentration bars (32) being fixedly connected to the bottom wall scraper unit, and the side wall scraper unit (33) being fixedly connected to the plurality of concentration bars (32) arranged closest to the side wall (11); Preferably, the bottom wall scraper unit includes a telescopically adjustable bottom wall scraper.

3. The high-efficiency slag cleaning and concentration tank according to claim 2, characterized in that: The side wall scraper unit (33) comprises two fixed steel plates (331) arranged in parallel along the plane where the support arm unit (31) is located. The two fixed steel plates (331) are fixedly connected by a plurality of reinforcing bolt assemblies (332). The side wall scraper assembly (333) is arranged between the two fixed steel plates (331) and is fixedly connected to the plurality of reinforcing bolt assemblies (332).

4. The high-efficiency slag cleaning and concentration tank according to claim 3, characterized in that: The side wall scraper assembly (333) comprises a scraper fixing steel plate (3332) and a side wall scraper (3331) that are fixedly connected, and the scraper fixing steel plate (3332) is provided with a plurality of steel plate reserved slots (3333); Preferably, two support arm units (31) are provided, and the two support arm units (31) are symmetrically arranged about the central transmission shaft (22). The support arm unit (31) includes a transverse arm (311), a vertical arm (313) and an oblique arm (312) connected in sequence. The other end of the transverse arm (311) is fixedly connected to the central transmission shaft (22), and the transverse arm (311) is arranged horizontally. The other end of the oblique arm (312) is fixedly connected to the central transmission shaft (22), and the oblique arm (312) is arranged parallel to the base plate (12).

5. The high-efficiency slag cleaning and concentration tank according to any one of claims 1 to 4, characterized in that: The invention also includes a scum cleaning module (51) provided on the top of the pool body module (1), the scum cleaning module (51) including a fixed bracket (511), the fixed bracket (511) being fixedly connected to the central transmission shaft (22), a scum cleaning unit (52) being provided at the bottom of the fixed bracket (511), the center of the scum cleaning unit (52) being consistent with the water level in the pool cavity, and being driven by the central transmission shaft (22) to rotate to disturb the water flow, so that scum on the water surface moves along the scum cleaning unit (52) toward the side wall (11); Preferably, the scum cleaning module (51) further comprises a scum bucket (53), which is provided below the end of the scum cleaning unit close to the side wall (11) and is used to recover scum that moves above the scum bucket. Preferably, the scum cleaning unit (52) is connected to the fixed bracket (511) via two vertically parallel telescopic rods; A transmission wheel (521) is provided at the connection between the telescopic rod and the scum cleaning unit (52). The transmission wheel (521) includes a rotary bearing and a rotating shaft provided in the middle of the rotary bearing and rotatably connected to the rotary bearing. The outer wall of the rotary bearing is fixedly connected to the telescopic rod, and the rotating shaft is fixedly connected to the scum cleaning unit (52).

6. The high-efficiency slag cleaning and concentration tank according to claim 5, characterized in that: The scum cleaning unit (52) comprises a rotating body and a scum scraper provided on the rotating body. The scum scraper is spirally arranged along the radial direction of the pool cavity and rotates under the action of water resistance to drive the scum on the water surface to the scum bucket (53).

7. The high-efficiency slag cleaning and concentration tank according to any one of claims 1 to 6, characterized in that: The stirring module (4) comprises a stirring shaft fixedly connected to the central transmission shaft (22), and a plurality of stirring blades (42) arranged along the circumference of the stirring shaft, wherein the stirring blades (42) are fixedly connected to the stirring shaft via hinges (43).

8. The high-efficiency slag cleaning and concentration tank according to any one of claims 1 to 7, characterized in that: A working bridge (16) is provided above the pool body module (1); a guide tube (221) is provided at the bottom of the working bridge (16); the guide tube (221) is sleeved on the central transmission shaft (22), and the guide tube (221) is provided above the mud scraping module (3); the guide tube (221) is connected to the water inlet pipe (17) and is used to change the direction and flow rate of water entering the pool cavity.

9. The high-efficiency slag cleaning and concentration tank according to any one of claims 1 to 8, characterized in that: The water inlet pipe (17) is provided with an electric valve; The slag cleaning module (51) further comprises a slag discharge pipe (54), one end of which is connected to the slag hopper (53), and the other end of which is connected to a slag discharge inspection well (55), wherein a filter screen (56) is provided in the slag discharge inspection well (55).

10. A method for concentrating muddy water in an efficient slag cleaning and concentrating tank, characterized in that: The method is implemented by using the device according to any one of claims 1 to 9, comprising: The water inlet pipe (17) discharges muddy water into the pool cavity. When the muddy water reaches a specified height, the drive motor (21) works to drive the central transmission shaft (22) to rotate, while the water inlet pipe (17) keeps water inlet; The central transmission shaft (22) drives the scraping module (3) to scrape off the mud deposited on the side wall (11) and the bottom plate (12). At the same time, the rotation of the scraping module (3) causes the water flow at the corresponding position to generate a vortex. The mud enters the stirring groove (13) under the combined action of gravity and the vortex force, and forms concentrated mud in the stirring groove (13); The central transmission shaft (22) drives the stirring module (4) to rotate, so that the concentrated mud entering the stirring groove (13) is discharged from the pipe arranged at the bottom of the stirring groove (13) in a uniform concentration and in a flowing manner, and at the same time, clean water flows out from the drainage pipe arranged at the upper part of the side wall (11).

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