A sewage circulating pool sludge harmless treatment device

Abstract

The present application provides a kind of sewage circulating pool sludge harmless treatment device, including main structure and dry cylinder, driving mechanism, transmission device and sludge extrusion mechanism, dry cylinder is by multiple annular bodies sequentially fixed composition, the bottom plate of each annular body is provided with through hole and mud hole, and there is fixed diameter plate, the center of spline sleeve of transmission device is matched with spline shaft, spline shaft is connected with driving mechanism rotating shaft, the sidewall of radial arm sleeve seat is fixed with lifting arm, the end of lifting arm is equipped with roller, the upper portion of the uppermost annular body is fixed with track ring, including high position ring rail, low position ring rail and guide slope, the top of sludge extrusion mechanism central shaft is fixed with spline sleeve, one side of each diameter plate sleeve seat is fixed with movable diameter plate.The present application realizes continuous sludge extrusion and moisture discharge.Sludge is uniformly extruded in multiple annular bodies, effectively improves the dryness and stability of sludge, significantly improves the processing speed and drying effect.

Description

Technical Field

[0001] This invention belongs to the technical field of environmentally friendly and energy-saving sewage treatment equipment, specifically relating to a device for harmless treatment of sludge from a sewage circulation tank. Background Technology

[0002] The harmless treatment of sludge from wastewater recycling ponds refers to the special treatment of sludge generated during wastewater treatment to eliminate harmful substances and reduce its potential environmental risks. This typically involves reducing pathogens in the sludge, stabilizing organic matter, reducing the sludge's water content, and removing or transforming pollutants such as heavy metals. Existing technologies often cannot completely remove moisture and harmful substances from the sludge, resulting in treated sludge still containing high moisture content and potential environmental risks. Thermal drying technology, in particular, is expensive due to its high energy consumption, hindering its widespread application. Some treatment methods may generate secondary pollution, such as the emission of harmful gases during incineration. Most current methods for treating sludge from wastewater recycling ponds reduce moisture through evaporation, but this is inefficient due to climatic limitations. Some methods use filter presses, centrifuges, and other equipment to mechanically remove moisture from the sludge, but these often fail to completely remove moisture from deeper layers. Heating the sludge accelerates evaporation, but this is energy-intensive and may generate air pollutants. Adding chemical agents can alter the properties of sludge, but this may introduce new environmental problems. Utilizing microorganisms to decompose organic matter in sludge has a long treatment cycle and is greatly affected by environmental factors.

[0003] Given the shortcomings of existing sludge treatment technologies, such as low treatment efficiency, high cost, and environmental pollution risks, there is an urgent need to develop a new type of sludge harmless treatment technology to achieve more efficient, environmentally friendly, and economical sludge treatment, promote the resource utilization of sludge, and reduce its impact on the environment. Summary of the Invention

[0004] In view of the defects and problems of existing technologies, the present invention provides a harmless treatment device for sludge in sewage circulation tanks, which realizes efficient drying treatment of sludge, reduces environmental pollution, and improves sludge treatment efficiency.

[0005] The solution to the technical problem of this invention is as follows: a harmless treatment device for sludge from a wastewater circulation tank is adopted, comprising a main structure, a drying cylinder, a drive mechanism, a transmission device, and a sludge extrusion mechanism. The main structure includes a tank, a support, a cover, a feed inlet, and a dosing device. The drying cylinder is composed of multiple layers of annular bodies fixed in sequence. A base plate is fixed to the bottom of each annular body. A central hole is provided in the central area of ​​each base plate, and through-holes are provided on both sides of each base plate. The central hole communicates with the through-holes. Sludge passage holes are provided in other areas outside the through-holes. Each base plate has a fixed diameter plate, and the through-holes of the upper and lower annular bodies overlap. The fixed diameter plates of the upper and lower layers are symmetrically distributed left and right. The transmission device includes a spline sleeve, a diameter arm sleeve seat, and a spline shaft. The spline sleeve is fixed inside the radial arm sleeve seat, and a spline shaft is fitted at the center of the spline sleeve. The drive mechanism is installed at the center of the cover, and the spline shaft is connected to the rotating shaft of the drive mechanism. A lifting arm is fixed to the side wall of the radial arm sleeve seat, and a roller is installed at the end of the lifting arm. At least one track ring is fixed at the top of the uppermost annular body. The track ring includes a high-position ring rail, a low-position ring rail, and a guide ramp. The roller is supported on the top of the track ring. The sludge extrusion mechanism includes a central shaft and a radial plate sleeve seat. The top of the central shaft is fixed to the spline sleeve, and the top of the radial plate sleeve seat is fixed to the radial arm sleeve seat. Multiple radial plate sleeve seats are sequentially connected and fixed. A movable radial plate is fixed on one side of each radial plate sleeve seat. The adjacent movable radial plates are symmetrically distributed left and right, and each movable radial plate is located in each annular body.

[0006] Preferably, each diameter plate sleeve is provided with a positioning slot on its side wall. After the upper and lower diameter plate sleeves are connected, the positions of each positioning slot correspond. The integrated plate is simultaneously fixed in each positioning slot by bolts, so that multiple diameter plate sleeves are fixed as a whole.

[0007] Preferably, the movable diameter plate and the diameter plate sleeve are an integral structure, or a locking post is provided at the inner end of the movable diameter plate, the locking post is matched and locked together with the positioning slot, and then the movable diameter plate and the diameter plate sleeve are fixed together by through bolts.

[0008] Preferably, the system further includes an internal support assembly comprising a U-shaped connecting member, an inner support plate, and a buffer pad. The outer wall of the annular body is provided with a recessed positioning seat. When multiple annular bodies are stacked and fixed together, the U-shaped connecting member is simultaneously fixed in multiple positioning seats. An inner support plate is fitted and fixed inside the U-shaped connecting member and is fixed to the inner wall of the tank. A buffer pad is fitted between the inner wall of the U-shaped connecting member and the outer wall of the inner support plate.

[0009] Preferably, the area between the drying cylinder and the tank cylinder is an annular filtration zone, and an annular drain outlet is installed at the bottom of the annular filtration zone; a series of side wall holes are provided on the side wall of the annular body, and a lining layer is fixed on the inner wall of the annular body.

[0010] Preferably, on the upper side of the upper track ring, the upper conical hopper is fitted or fixedly connected to the upper port of the can cylinder, and on the lower side of the lowest ring body, the lower conical hopper is fitted or fixed to the bottom outlet position of the can cylinder.

[0011] Preferably, it also includes an output unit, which includes a pulley frame, a filter belt, side walls, and a manually controlled drain port. The filter belt is also wound around the pulley on the upper side of the pulley frame. A closed inclined water tank is provided at the bottom of the pulley frame. When the discharged sludge is output downward from the filter belt, the filter belt can discharge the filtered water into the inclined water tank. The side walls are fixed to both sides of the upper part of the pulley frame. The manually controlled drain port is installed at the bottom of the inclined water tank. A bottom water tank is installed at the center of the bottom of the tank cylinder. The input end of the filter belt is located in the upper part of the bottom water tank.

[0012] Preferably, it also includes an air supply mechanism, including an air pipe, an air passage, and an air nozzle. The air pipe is fitted inside the cavity of the central shaft, and a groove is provided in the movable diameter plate. The air pipe and the groove are connected through the air passage. A series of conical air ports are provided on the front side of the movable diameter plate, and a series of conical air nozzles are installed in the groove. The conical air nozzles and the corresponding conical air ports can be matched and fitted together.

[0013] Preferably, the drive mechanism includes a drive motor, a motor shaft, and a bearing bracket. The drive motor is fixed to the upper center of the cover, the motor shaft extends below the cover, and a bearing bracket is fixed below the cover. The motor shaft passes through the center of the bearing bracket and extends out.

[0014] The beneficial effects of this invention are as follows: Through a multi-layered annular structure and a dynamically adjusted transmission device, continuous sludge compression and water discharge are achieved, significantly improving processing speed and drying efficiency. The sludge compression mechanism ensures uniform compression of the sludge within the multi-layered annular structure, effectively improving the dryness and stability of the sludge. The design of the annular filtration zone and drainage system enables efficient removal of excess water from the sludge, reducing environmental pollution during sludge treatment.

[0015] The buffering effect of the internal support components and the use of U-shaped connecting parts improve the stability and wear resistance of the equipment, extend its service life, and the modular design facilitates assembly and component replacement.

[0016] The output unit design simplifies the drainage process after sludge treatment, facilitating maintenance and management and reducing operating costs. The integrated gas supply mechanism enhances the flexibility of sludge treatment, allowing for adjustments to gas pressure based on sludge characteristics and treatment requirements to optimize treatment outcomes. The efficiently dried sludge can be used for land reclamation, building materials, etc., promoting sludge resource utilization and yielding significant economic and environmental benefits. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the wastewater recycling tank sludge harmless treatment device of the present invention;

[0018] Figure 2 yes Figure 1 Internal structure diagram;

[0019] Figure 3 yes Figure 2 Schematic diagram of the structure of the intermediate drying cylinder;

[0020] Figure 4 yes Figure 3 Side view;

[0021] Figure 5 This is a schematic diagram showing the assembly relationship between the drying cylinder and the sludge extrusion mechanism;

[0022] Figure 6 This is a schematic diagram of the structure of a single-layer drying cylinder;

[0023] Figure 7 This is a schematic diagram of a sludge extrusion mechanism;

[0024] Figure 8 This is a schematic diagram of another structure of the sludge extrusion mechanism;

[0025] Figure 9 This is another structural schematic diagram of a sludge extrusion mechanism;

[0026] Figure 10 This is a schematic diagram of the transmission device.

[0027] Numbered in the diagram: 1. Main structure; 2. Drying cylinder; 3. Drive mechanism; 4. Transmission device; 5. Sludge extrusion mechanism; 6. Air supply mechanism; 7. Internal support assembly; 8. Output unit; 11. Tank; 12. Support; 13. Cover; 14. Bottom water tank; 15. Annular cavity drain outlet; 16. Breathing pipe; 17. Bottom tank drain outlet; 18. Feed inlet; 19. Dosing device; 21. Annular body; 22. Bottom plate; 23. Through port; 24. Positioning seat; 25. Fixed diameter plate; 26. Sludge passage hole; 27. Center hole; 28. Side wall hole; 29. ​​Lining layer; 31. Drive motor; 32. Motor shaft; 33. Bearing bracket; 41. Spline sleeve; 42. Diameter arm sleeve seat; 43. Spline shaft; 44. Lifting arm. 4; Roller 45; Track ring 46; High-position ring rail 461; Low-position ring rail 462; Guide slope 463; Central shaft 51; Diameter plate sleeve 52; Movable diameter plate 53; Positioning slot 54; Connecting plate 55; Positioning post 56; Rotating piece 57; Moving baffle 58; Torsion spring 59; Air pipe 61; Air passage 62; Embedded groove 63; Embedded plate 64; Spring piece 65; Conical air inlet 66; Conical air nozzle 67; Central air hole 68; Radial air hole 69; U-shaped connecting piece 71; Inner support plate 72; Buffer pad 73; Upper conical bucket 74; Lower conical bucket 75; Pulley frame 81; Filter belt 82; Side wall 83; Inclined water tank 84; Manually controlled drain outlet 85. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] Example 1: A wastewater recycling tank sludge harmless treatment device, mainly for drying sludge in sludge tanks to reduce environmental pollution. The device mainly includes a main structure 1, a drying cylinder 2, a drive mechanism 3, a transmission device 4, and a sludge extrusion mechanism 5, etc.

[0030] like Figure 1 As shown, the main structure 1 includes a tank 11, a support 12, a cover 13, a bottom water tank 14, an annular drain 15, a breathing tube 16, a bottom tank drain 17, a feed inlet 18, and a dosing device 19. The support 12 is fixed below the tank 11, the cover 13 is installed above the tank 11, the bottom water tank 14 is installed at the center of the bottom of the tank 11, the annular drain 15 is installed on the bottom side wall of the tank 11, the breathing tube 16 is installed on the upper part of the cover 13, the bottom tank drain 17 is installed at the bottom of the bottom water tank 14, the feed inlet 18 is installed on the upper part of the cover 13, and the dosing device 19 is installed on the upper side of one side of the tank 11.

[0031] like Figures 2-6 As shown, the drying cylinder 2 is composed of multiple layers of annular bodies 21 fixed in sequence. A base plate 22 is fixed to the bottom of each annular body 21. A central hole 27 is provided in the central area of ​​each base plate 22, and through openings 23 are provided on both sides of each base plate 22. The central hole 27 communicates with the through openings 23. Mud passage holes 26 are provided in other areas outside the through openings 23. A fixed diameter plate 25 is also fixed to each base plate 22. Recessed positioning seats 24 are provided on the outer walls of the annular bodies 21. When multiple annular bodies 21 are stacked and fixed, U-shaped connecting parts 71 are simultaneously fixed within multiple positioning seats 24. A series of side wall holes 28 are provided on the side walls of the annular bodies 21, and a lining layer 29 is fixed to the inner wall of the annular bodies 21. Figure 5 It can be clearly seen that when the upper and lower ring bodies 21 are connected, the positions of the through openings 23 of the upper and lower layers overlap, but the positions of the fixed diameter plates 25 of the upper and lower layers do not overlap and are symmetrically distributed.

[0032] like Figure 2 As shown, the inner support assembly 7 includes a U-shaped connector 71, an inner support plate 72, and a buffer pad 73. The U-shaped connector 71 secures all the annular bodies 21 together. The inner support plate 72 is fitted and fixed inside the U-shaped connector 71 and is fixed to the inner wall of the tank 11. A buffer pad 73, which is a rubber layer, is fitted between the inner wall of the U-shaped connector 71 and the outer wall of the inner support plate 72 to provide cushioning.

[0033] After all the annular bodies 21 are fixed together by the U-shaped connecting piece 71, a track ring 46 is fixed to the upper part of the uppermost annular body 21 and the lower part of the lowermost annular body 21. The upper track ring 46 is fitted or fixed to the upper port of the can 11 via an upper conical hopper 74. The lower track ring 46 (or, if there is no lower track ring, directly to the lower part of the lowermost annular body 21) is fitted or fixed to the bottom outlet position of the can 11 via a lower conical hopper 75.

[0034] The area between the outer wall of the drying cylinder 2 and the inner wall of the tank cylinder 11 is an annular filtration zone, and the inner end of the annular drain outlet 15 is connected to the bottom of this annular filtration zone. The lower end of the feed inlet 18 corresponds to the upper conical hopper 74, and the outlet of the dosing device 19 is located at the upper part of the upper conical hopper 74.

[0035] like Figure 2 As shown, the drive mechanism 3 includes a drive motor 31, a motor shaft 32, and a bearing bracket 33. The drive motor 31 is fixed to the upper center of the cover 13, and the motor shaft 32 extends below the cover 13. The bearing bracket 33 is fixed below the cover 13, and the motor shaft 32 extends out through the center of the bearing bracket 33.

[0036] like Figure 2 and Figure 10 As shown, the transmission device 4 includes a spline sleeve 41, a radial arm sleeve 42, a spline shaft 43, a lifting arm 44, rollers 45, and a track ring 46. The spline sleeve 41 is fixed inside the radial arm sleeve 42, and the spline shaft 43 is fitted into the center of the spline sleeve 41. The lifting arm 44 is fixed to the side wall of the radial arm sleeve 42, and rollers 45 are installed at the end of the lifting arm 44.

[0037] A track ring 46 is fixed at the top and / or bottom. The track ring 46 includes a high-position track 461, a low-position track 462, and a guide ramp 463. Rollers 45 are supported on the top of the track ring 46. When the radial arm sleeve 42 is driven to rotate by the drive mechanism 3, it can drive the lifting arm 44 to rotate, thereby allowing the rollers 45 to roll along the upper edge of the track ring 46. When the rollers 45 roll along the upper edge of the track ring 46, they can roll on the high-position track 461 to position the lifting arm 44 at a high position, or roll on the low-position track 462 to position the lifting arm 44 at a low position.

[0038] like Figure 7 As shown, the sludge extrusion mechanism 5 includes a central shaft 51, a diameter plate sleeve 52, a movable diameter plate 53, a positioning slot 54, a connecting plate 55, and a positioning post 56. The top of the central shaft 51 is fixed to the spline sleeve 41, and the top of the diameter plate sleeve 52 is fixed to the diameter arm sleeve 42. The multi-layer diameter plate sleeves 52 are sequentially connected and fixed, and a movable diameter plate 53 is fixed to one side of each diameter plate sleeve 52. Figure 7It can be clearly seen that the adjacent movable diameter plates 53 are symmetrically distributed, and each diameter plate sleeve 52 has a positioning slot 54 on its side wall. After the upper and lower diameter plate sleeves 52 are connected, the positions of each positioning slot 54 correspond, and a common connecting plate 55 is fitted into each positioning slot 54. The connecting plate 55 is simultaneously fixed into each positioning slot 54 with bolts, thereby fixing multiple diameter plate sleeves 52 into a whole. The movable diameter plate 53 and the diameter plate sleeve 52 can be an integral structure or a flexible installation structure. For example, a locking post 56 is provided at the inner end of the movable diameter plate 53. The locking post 56 is matched and locked together with the positioning slot 54, and then the movable diameter plate 53 and the diameter plate sleeve 52 are fixed together with through bolts.

[0039] The above-mentioned scheme also includes an output unit 8, which includes a pulley frame 81, a filter belt 82, a side wall 83, and a manually controlled drain port 85. A filter belt 82 is wound around the pulley on the upper side of the pulley frame 81, and a closed inclined water tank 84 is provided at the bottom of the pulley frame 81. When the discharged sludge is output downwards from the filter belt 82, the filter belt 82 can discharge the filtered water into the inclined water tank 84. The side wall 83 is fixed to both sides of the upper part of the pulley frame 81, and the manually controlled drain port 85 is installed at the bottom of the inclined water tank 84 for periodic drainage as needed. The input end of the filter belt 82 is located in the upper part of the bottom water tank 14 and below the lower conical hopper 75.

[0040] Based on the above scheme, during assembly, each movable diameter plate 53 of the sludge extrusion mechanism 5 is assembled inside each annular body 21 of the drying cylinder 2. When the drive mechanism 3 rotates, it can drive the diameter arm sleeve 42 to rotate, thereby driving the lifting arm 44 and roller 45 to rotate. Since the diameter arm sleeve 42, lifting arm 44 and roller 45 can move to a high position or a low position along the upper part of the track ring 46 when rotating, it can drive the entire sludge extrusion mechanism 5 to move upward to a high position or downward to a low position.

[0041] When the movable diameter plate 53 moves upward and downward, it can pass through the through-hole 23 of the drying cylinder 2. According to the above structure, when the drive mechanism 3 rotates one revolution, the transmission device 4 can be in the upper position for the first half of the revolution and in the lower position for the second half of the revolution, and so on. This means that the movable diameter plate 53 of the sludge extrusion mechanism 5 is in the upper annular body 21 for half the time and in the lower annular body 21 for the other half of the time. When the movable diameter plate 53 is in the upper annular body 21 and rotates along the central axis 51, it can continuously approach the fixed diameter plate 25 in the upper annular body 21, thereby extruding the sludge in that area, so that the extruded sludge moves upward or downward from the sludge passage hole 26. When the movable diameter plate 53 is about to approach the upper fixed diameter plate 25, it will descend through the through-hole 23 into the lower annular body 21, thereby avoiding the upper fixed diameter plate 25. When the movable diameter plate 53 is located inside the lower annular body 21, it will also be close to the lower fixed diameter plate 25, causing the sludge in this area to be squeezed and move upward or downward along the sludge passage hole 26.

[0042] Thus, the drive mechanism 3 drives the transmission device 4, which in turn drives the sludge extrusion mechanism 5. This causes the multiple movable radial plates 53 of the sludge extrusion mechanism 5 to continuously rotate and reciprocate within two adjacent annular bodies 21, constantly extruding the sludge and causing each layer of sludge to repeatedly move towards the adjacent layer. Since the sludge as a whole tends to move downwards, the entire sludge will also slowly move downwards as the sludge extrusion mechanism 5 rotates. When the sludge extrusion mechanism 5 rotates, it can drive more sludge to move to the lower layer and less sludge to move to the upper layer.

[0043] Side wall holes 28 are provided on the side wall of the annular body 21, and a lining layer 29 is fixed on the inner side wall of the annular body 21. When the sludge extrusion mechanism 5 extrudes in each layer of the annular body 21, it can not only move the sludge to the lower layer or the upper layer through the sludge passage holes 26, but also discharge the water squeezed out of the sludge along the lining layer 29. The excess water of each layer enters the annular filtration zone through the lining layer 29 and is discharged from the annular cavity drain outlet 15.

[0044] Based on the above scheme, when the movable diameter plate 53 of each layer approaches the fixed diameter plate 25, some sludge will be compressed and move to the lower layer through the through-hole 23. Since the space of the through-hole 23 is significantly larger than the sludge passage hole 26, although a portion of the sludge moves out along the upper and lower sludge passage holes 26 after being compressed due to the large amount of sludge, direct discharge from the through-hole 23 is not conducive to squeezing out the water inside the sludge. To solve this problem, a method can be adopted... Figure 8 One form shown. For example... Figure 8In this structure, a rotating plate 57 is fitted below the central shaft 51. The rotating plate 57 can rotate independently along the central shaft 51. A movable baffle 58 is fixed on one side of the rotating plate 57, and the movable baffle 58 matches the through opening 23. A torsion spring 59 is fitted between the rotating plate 57 and the radial plate sleeve 52. When the entire movable radial plate 53 moves upward to its limit position, the movable baffle 58 can close the through opening 23 of this layer. When the movable radial plate 53 rotates to the upper layer of the movable baffle 58 and the movable radial plate 53 begins to move downward, the movable baffle 58 disengages from the support of the through opening 23, and under the rotational action of the torsion spring 59, the movable baffle 58 will unfold again.

[0045] In the integration of the above solutions, a gas supply mechanism can also be added to evenly inject high-pressure gas into the sludge. Through a squeezing process, excess moisture is carried away as the gas is released. One implementation of the gas supply mechanism is as follows: Figure 9 As shown, the air supply mechanism 6 includes an air pipe 61, an air passage 62, a groove 63, a plate 64, a spring 65, a conical air inlet 66, a conical air nozzle 67, a central air hole 68, and radial air holes 69. The air pipe 61 is fitted inside the cavity of the central shaft 51. A groove 63 is provided within the movable diameter plate 53. A plate 64 covers the port of the groove 63, dividing it into an upper and lower region. A spring 65 is fitted between the bottom of the groove 63 and the plate 64. A series of conical air nozzles 67 are mounted on the plate 64. A series of conical air inlets 66 are provided on the front side of the movable diameter plate 53. The conical air nozzles 67 and their corresponding conical air holes 66 can be fitted together. A central air hole 68 is provided at the center of the conical air nozzle 67, and radial air holes 69 are provided on the conical surface of the conical air nozzle 67. The central air hole 68 and the radial air holes 69 communicate with each other.

[0046] The upper region is connected via air passage 62. When air pressure is increased in the air pipe 61, the airflow in the air pipe 61 enters the upper region of the groove 63 through air passage 62, further pressurizing the insert plate 64 to move downwards, thereby causing multiple conical air nozzles 67 to move downwards, separating each conical air nozzle 67 from the conical air port 66. After separation, the high-pressure air from the air pipe 61 will be discharged from the exhaust port of the conical air port 66. When there is no air pressure in the air pipe 61, the spring plate 65 can push the insert plate 64 outwards, causing each conical air nozzle 67 to pop outwards and press against the conical air port 66, thereby sealing the exhaust port of each conical air port 66. In this structure, when no pressurization is applied, each exhaust port is in a naturally sealed state, thereby preventing sludge from entering the inner cavity of the movable diameter plate 53. When high-pressure air is discharged to the front side of the movable diameter plate 53, sludge will basically not enter the inner side of the conical air port 66. At any time, when sludge enters the conical air vent 66 through the exhaust port of the conical air vent 66, the pressure control of the air pipe 61 can control the panel 64 to move continuously up and down, thereby enabling the conical air nozzle 67 to continuously connect or separate from the conical air vent 66, so that the needle at the front end of the conical air nozzle 67 can clear the large exhaust hole of the conical air vent 66.

[0047] Based on the above scheme, the process during use includes the following steps. First, install the sludge treatment device in place and check that all components are correctly installed, including the main structure 1, drying cylinder 2, drive mechanism 3, transmission device 4, and sludge extrusion mechanism 5. Ensure the equipment is in good working condition. Then, add the sludge to be treated into the tank 11 through the feed inlet 18. The sludge should be evenly distributed to facilitate subsequent drying. Start the drive motor 31, which drives the bearing bracket 33 via the motor shaft 32, thereby driving the entire sludge extrusion mechanism 5 to start working. As the drive mechanism 3 operates, the transmission device 4 drives the movable diameter plate 53 of the sludge extrusion mechanism 5 to reciprocate and lift within the annular body of the drying cylinder 2. In this step, the sludge is uniformly extruded, the moisture is gradually discharged, and the sludge dryness increases. The extruded moisture enters the annular filtration zone through the sludge passage 26 and is finally discharged through the annular drain outlet 15. This step effectively reduces the moisture content in the sludge and improves the drying quality of the sludge. During the sludge compression process, the dynamic sealing mechanism of the rotating plate 57 and the moving baffle 58 ensures the timely closing and opening of the through-hole 23, controlling the discharge of water from the sludge and preventing ineffective water loss. If the equipment is equipped with an air supply mechanism 6, high-pressure gas can be evenly injected into the sludge through the air pipe 61, and the gas is released during the compression process to further remove excess water from the sludge. The treated sludge is discharged through the filter belt 82 of the output unit 8. The filter belt 82 discharges the filtered water into the inclined water tank 84, and the water is drained periodically through the manually controlled drain port 85 to keep the equipment clean and operating normally. After the sludge treatment is completed, the equipment is cleaned and maintained as necessary to ensure that the equipment can maintain good working condition for the next use. The dried sludge can be utilized for resource recovery, such as for land improvement and building materials, realizing the recycling of waste. The above process can improve sludge treatment efficiency, reduce environmental pollution, and improve the quality of sludge drying.

[0048] The specific embodiments described above are merely illustrative or explanatory of the principles of the present invention and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of the present invention should be included within the protection scope of the present invention.

Claims

1. A wastewater recycling tank sludge harmless treatment device, comprising a main structure (1) and a drying cylinder (2), a drive mechanism (3), a transmission device (4) and a sludge extrusion mechanism (5), wherein the main structure (1) comprises a tank cylinder (11), a support (12), a cover (13), a feed inlet (18) and a dosing device (19); characterized in that, The drying cylinder (2) is composed of multiple ring bodies (21) fixed in sequence. The bottom of each ring body (21) is fixed with a base plate (22). The center area of ​​each base plate (22) is provided with a central hole (27). The two sides of each base plate (22) are provided with through holes (23). The central hole (27) communicates with the through holes (23). Mud passage holes (26) are provided in other areas outside the through holes (23). Each base plate (22) has a fixed diameter plate (25). The through holes (23) of the upper and lower ring bodies (21) overlap, and the upper and lower fixed diameter plates (25) are symmetrically distributed from left to right. The transmission device (4) includes a spline sleeve (41), a diameter arm sleeve seat (42), and a spline shaft (43). The spline sleeve (41) is fixed in the diameter arm sleeve seat (42). The center of the spline sleeve (41) is fitted with a spline shaft (43). The drive mechanism (3) is installed at the center of the cover (13). The spline shaft (43) 43) Connected to the rotating shaft of the drive mechanism (3); a lifting arm (44) is fixed to the side wall of the radial arm sleeve (42), and a roller (45) is installed at the end of the lifting arm (44); a track ring (46) is fixed at least on the upper part of the uppermost annular body (21); the track ring (46) includes a high-position ring rail (461), a low-position ring rail (462) and a guide ramp (463), and the roller (45) is supported on the top of the track ring (46); the sludge extruder The structure (5) includes a central shaft (51) and a diameter plate sleeve (52). The top of the central shaft (51) is fixed to the spline sleeve (41), and the top of the diameter plate sleeve (52) is fixed to the diameter arm sleeve (42). Multiple diameter plate sleeves (52) are connected and fixed in sequence. A movable diameter plate (53) is fixed on one side of each diameter plate sleeve (52). The adjacent movable diameter plates (53) are symmetrically distributed on the left and right. Each movable diameter plate (53) is located in each layer of the annular body (21).

2. The wastewater circulation tank sludge harmless treatment device according to claim 1, characterized in that, Each diameter plate sleeve (52) is provided with a positioning slot (54) on its side wall. After the upper and lower diameter plate sleeves (52) are connected, the positions of each positioning slot (54) are corresponding. The connecting plate (55) is fixed in each positioning slot (54) by bolts, so that multiple diameter plate sleeves (52) are fixed as a whole.

3. The wastewater circulation tank sludge harmless treatment device according to claim 2, characterized in that, The movable diameter plate (53) and the diameter plate sleeve (52) are an integral structure, or a locking post (56) is provided at the inner end of the movable diameter plate (53), the locking post (56) is matched and locked together with the positioning slot (54), and then the movable diameter plate (53) and the diameter plate sleeve (52) are fixed together by through bolts.

4. The wastewater circulation tank sludge harmless treatment device according to claim 1, characterized in that, It also includes an inner support assembly (7), which includes a U-shaped connector (71), an inner support plate (72) and a buffer pad (73). The outer side wall of the annular body (21) is provided with a recessed positioning seat (24). When multiple annular bodies (21) are stacked and fixed together, the U-shaped connector (71) is fixed in multiple positioning seats (24) at the same time. The inner support plate (72) is fitted and fixed in the U-shaped connector (71), and the inner support plate (72) is fixed on the inner wall of the tank (11). A buffer pad (73) is fitted between the inner wall of the U-shaped connector (71) and the outer wall of the inner support plate (72).

5. The wastewater circulation tank sludge harmless treatment device according to claim 1, characterized in that, The area between the drying cylinder (2) and the tank cylinder (11) is an annular water filtration zone, and an annular drain outlet (15) is installed at the bottom of the annular water filtration zone; a series of side wall holes (28) are provided on the side wall of the annular body (21), and a lining layer (29) is fixed on the inner wall of the annular body (21).

6. The wastewater circulation tank sludge harmless treatment device according to claim 1, characterized in that, An upper cone (74) is provided on the upper side of the upper track ring (46). The track ring (46) is fitted or fixedly connected to the upper port of the tank (11) through the upper cone (74). A lower cone (75) is provided on the lower side of the lowest ring body (21). The lower cone (75) is fitted or fixed to the bottom outlet position of the tank (11) through the lower cone (75).

7. The wastewater circulation tank sludge harmless treatment device according to claim 1, characterized in that, It also includes an output unit (8), which includes a pulley frame (81), a filter belt (82), a side wall (83), and a manual drain outlet (85). The filter belt (82) is also wrapped around the pulley on the upper side of the pulley frame (81). A closed inclined water tank (84) is provided at the bottom of the pulley frame (81). When the discharged sludge is output downward from the filter belt (82), the filter belt (82) can discharge the filtered water into the inclined water tank (84). The side wall (83) is fixed to both sides of the upper part of the pulley frame (81). The manual drain outlet (85) is installed at the bottom of the inclined water tank (84). A bottom water tank (14) is installed at the center of the bottom of the tank (11). The input end of the filter belt (82) is located in the upper part of the bottom water tank (14).

8. The wastewater circulation tank sludge harmless treatment device according to claim 1, characterized in that, It also includes an air supply mechanism (6), which includes an air pipe (61), an air passage (62) and an air nozzle. The air pipe (61) is fitted in the inner cavity of the central shaft (51). A groove (63) is provided in the movable diameter plate (53). The air pipe (61) and the groove (63) are connected through the air passage (62). A series of conical air ports (66) are provided on the front side of the movable diameter plate (53). A series of conical air nozzles (67) are installed in the groove (63). The conical air nozzles (67) and the corresponding conical air ports (66) can be matched and fitted together.

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