Sludge oxidation dehydration reaction environment-friendly device based on ultrasonic vibration

Abstract

The invention relates to the technical field of sludge treatment, in particular to a sludge oxidation dehydration reaction environment-friendly device based on ultrasonic vibration. Comprising a sludge drying device installed at a sludge outlet of a sludge dewatering device, the sludge drying device comprises a barrel, a second ring body is fixedly arranged at the top of the barrel, a first ring body is fixedly connected to the upper portion of the second ring body through a plurality of vertical rods, a roller is rotationally arranged between the first ring body and the second ring body, and a power assembly is arranged on the outer wall of the roller; a hollow conical barrel is fixedly arranged at the top of the first ring body, an air outlet and a feeding opening are formed in the top of the hollow conical barrel, a bottom plate is arranged at the bottom of the barrel body, and an air heater is fixedly arranged on the bottom plate; a central column body is arranged in the roller, the top of the central column body is fixedly connected with the first ring body through a plurality of first cross rods, and the bottom of the central column body extends into the roller body and is fixedly connected with the inner wall of the roller body through a plurality of second cross rods; according to the invention, the problem of further drying after sludge dehydration is solved, and continuous drying treatment of the sludge is realized by combining hot air drying with an automatic turnover unloading mechanism.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sludge treatment, in particular to an environmental protection device for sludge oxidation and dewatering reaction based on ultrasonic vibration. BACKGROUND

[0002] Sludge dewatering is a key link in the process of sewage treatment. Its working principle is to use physical methods such as mechanical pressure filtration, centrifugal separation, and gravity sedimentation, or to combine the action of chemical reagents such as flocculants and coagulants, and at the same time to use ultrasonic vibration technology to produce strong cavitation effect and mechanical vibration force, to destroy the network structure of sludge flocs, to release the bound water between sludge particles and the intracellular water, to improve the dewatering performance of sludge, to forcibly separate the free water and part of the interstitial water in the sludge, to reduce the water content of the sludge from 95-99% to about 70-85%, and to effectively disperse the sludge aggregation structure, thereby improving the dewatering efficiency and depth, significantly reducing the volume and weight of the sludge, reducing the subsequent transportation, storage and disposal costs, improving the stability and operability of the sludge, and creating favorable conditions for further drying, incineration, landfill or resource utilization, while reducing the activity of pathogenic bacteria in the sludge and the generation of malodorous gases. It is an important technical means to realize sludge reduction, stabilization and harmless treatment, and has important significance for environmental protection and resource conservation.

[0003] Chinese patent document (publication number: CN112209596B) discloses a sludge dewatering device based on ultrasonic waves, which relates to the technical field of ultrasonic dewatering, and comprises a feeding mechanism, an ultrasonic treatment chamber, a telescopic device, a pressure ball and a beam presser. First, the sludge with different specific gravities is separated from water by the first ultrasonic unit, so that the water enters the water channel from the separation cavity and is pumped away. Then, the center of the sludge is extruded by the pressure ball, which not only separates the sludge and water in the center of the sludge, which is difficult to handle, by the second ultrasonic unit, so that the water enters the water channel and is pumped away, but also concentrates the sludge into small parts to be extruded into strips by cooperating with the beam presser, further strengthens the separation of the sludge and water, and makes the sludge discharge along the narrow passage formed by the metal spring in the beam presser which is passively opened after the pressure increases. The ultrasonic unit can also effectively perform sterilization treatment, solving the problem that the existing sludge dewatering equipment cannot fully meet the requirements of sludge dewatering and is not conducive to environmental protection.

[0004] In the existing sludge treatment technology, when the dewatered sludge is dried, there are problems such as high water content after dewatering and uneven local drying. The traditional static drying method is prone to technical defects such as blockage of air vents, adhesion and solidification of sludge and equipment, and insufficient local drying. At the same time, there are problems such as serious adsorption of sludge residues, incomplete unloading, and insufficient self-cleaning ability of the equipment. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a sludge oxidation dewatering reaction environmental protection device based on ultrasonic vibration, mainly solves the further drying problem of dewatered sludge, realizes continuous drying treatment of sludge by hot air drying combined with automatic overturning and unloading mechanism, reduces manual intervention, effectively reduces the water content of sludge after sufficient drying, greatly reduces the weight and volume of sludge, reduces the breeding of pathogenic bacteria and the generation of malodorous gas, reduces the risk of secondary pollution, reduces the landfill area, facilitates subsequent resource utilization, and provides an efficient and environmentally friendly technical solution for sludge treatment.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions: A sludge oxidation dewatering reaction environmental protection device based on ultrasonic vibration, comprising a sludge drying device installed at the sludge outlet of a sludge dewatering device, the sludge drying device comprising a cylinder, a second ring body is fixedly arranged at the top of the cylinder, a first ring body is fixedly connected to the top of the second ring body through a plurality of vertical rods, a roller is rotatably arranged between the first ring body and the second ring body, and a power assembly is arranged on the outer wall of the roller; a hollow cone barrel is fixedly arranged at the top of the first ring body, an air outlet and a feeding port are arranged at the top of the hollow cone barrel, a bottom plate is arranged at the bottom of the cylinder, and a hot air fan is fixedly arranged on the bottom plate; a center column is arranged in the roller, the top of the center column is fixedly connected to the first ring body through a plurality of first horizontal rods, the bottom of the center column extends into the cylinder and is fixedly connected to the inner wall of the cylinder through a plurality of second horizontal rods, and a plurality of drying assemblies are arranged between the roller and the center column.

[0007] Preferably, the inner ring sizes of the first ring body and the second ring body are the same, a first convex ring is fixedly arranged on one side of the first ring body close to the roller, a second convex ring is fixedly arranged on one side of the second ring body close to the roller, the first convex ring and the second convex ring are arranged at the same distance from the inner ring of the ring body, the two ends of the roller are rotatably abutted against the first ring body and the second ring body respectively, and the outer periphery of the two ends of the roller is rotatably sleeved in the first convex ring and the second convex ring.

[0008] 3. The sludge oxidation dewatering reaction environmental protection device based on ultrasonic vibration according to claim 2, wherein the drying assembly comprises a plurality of housings arranged in a circular central array, an inner sleeve ring is sleeved on the center column through a bearing, the outer peripheral surface of the inner sleeve ring is fixedly connected to the inner wall of the roller through a plurality of link plates arranged in an array, and one housing is arranged between adjacent two link plates; a plurality of through holes are formed in the housing, and the through holes are arranged along the axial direction of the center column; a support ring is fixedly arranged on the center column, and the top of the support ring is rotatably abutted against the bottom of the inner sleeve ring.

[0009] Preferably, two fixed shafts with overlapping axes are arranged on the shell, one fixed shaft is located near the inner wall of the drum and is mounted on the drum through a bearing, and the other fixed shaft is located near the outer surface of the inner ring and is mounted on the inner ring through a bearing, both fixed shafts are located on the symmetry plane of the shell, and the extension line of the connecting line of the two fixed shafts passes through the center of the same diameter plane of the center column; the fixed shaft located on the drum extends away from the center and is provided with a small bevel gear at the end, and a segmented face gear is fixed at the top of the second ring body, when the drum rotates, the segmented face gear meshes with the small bevel gear next to it, so that the corresponding box body rotates 180 degrees around the axis of the fixed shaft, and the dried sludge on the surface of the box body is poured into the discharge channel.

[0010] Preferably, the shell is a hollow cavity structure, two groups of telescopic units are symmetrically arranged inside the box body with the fixed shaft as the center, and a pressure bearing plate is fixed between the two groups of telescopic units; an open pressure ring is fixedly sleeved on the center column, the open pressure ring is located above the drum, and the open pressure ring extends outward into the interior of the shell, an avoiding groove is formed on the box body corresponding to the open pressure ring, the avoiding groove is L-shaped and has two ends, the first end of the avoiding groove faces the center column, and the second end faces the direction of the drum body; the pressure bearing plate is located at the second end of the avoiding groove, and the pressure bearing plate is arranged corresponding to the open pressure ring, when the open pressure ring pushes the pressure bearing plate, the telescopic unit is triggered to work.

[0011] Preferably, the opening of the open pressure ring is located above the discharge channel, which is beneficial to the turnover and discharge of the shell, a plurality of grooves are arranged on one side of the open pressure ring in contact with the pressure bearing plate, a plurality of ridges are arranged on the pressure bearing plate corresponding to the grooves, when the open pressure ring moves relative to the pressure bearing plate, the intermittent contact between the ridges and the grooves causes the pressure bearing plate to move up and down; a wedge-shaped body is arranged on one side of the open pressure ring close to the opening and in contact with the pressure bearing plate, the highest point of the wedge-shaped body is located at the end of the open pressure ring, and the direction of rotation of the drum is from low to high along the wedge-shaped body.

[0012] Preferably, the telescopic unit comprises two columns arranged oppositely, the bottom of the two columns is fixedly connected with a first guide rod, the opposite sides of the two columns are each provided with a sliding groove, and a second guide rod is slidably arranged in the opposite sliding grooves; a push rod is rotatably arranged on the column near the avoiding groove through a pin shaft, one end of the push rod is fixedly connected with an end of the pressure bearing plate, the end of the push rod away from the pressure bearing plate is fixedly provided with a first sliding sleeve, and the first sliding sleeve is slidably arranged on the second guide rod; the push rod is rotatably arranged with a first connecting rod and a second connecting rod through shaft pins, the first connecting rod is slidably arranged on the second guide rod through a second sliding sleeve, and the second connecting rod is slidably arranged on the first guide rod through a third sliding sleeve; a tension spring is arranged between the push rod and the bottom plate of the shell, and the tension spring is located between the two columns; the two ends of the second guide rod are respectively provided with an engaging block, a sliding plate is fixedly arranged on the side of the engaging block away from the bottom plate of the shell, a plurality of air guide pipes are arranged on the sliding plate, the air guide pipes are slidably arranged in the through holes in the upper and lower end faces of the shell, the top end of the air guide pipe is provided with an anti-blocking cap, and the bottom of the air guide pipe is fixedly sleeved with a vibration plate located between the sliding plate and the bottom plate of the shell.

[0013] Preferably, a lock unit is arranged on the inner wall of the shell and near the roller, the lock unit is located between the sliding plate and the top plate of the shell, the lock unit comprises a pair of supports fixedly arranged on the inner wall of the shell, a lock rod is rotatably arranged on the support through a pin shaft, two return springs are fixedly connected between the lock rod and the inner wall of the box body, the two return springs are respectively located on the two sides of the support, the end of the lock rod near the sliding plate is fixedly provided with a hook body, and a limiting groove is arranged on the sliding plate corresponding to the hook body; the end of the lock rod away from the hook body is connected with a hinged seat, the hinged seat is fixedly provided with a touch rod, the touch rod extends to the roller through the side wall of the shell, an avoiding slide is arranged on the inner wall of the roller corresponding to the touch rod, and the touch rod extends into the avoiding slide.

[0014] Preferably, the power assembly comprises a gear ring fixedly sleeved on the outer periphery of the roller, a second ring body, a motor fixedly arranged on the second ring body, and a gear fixedly arranged on the output shaft of the motor and engaged with the gear ring.

[0015] Preferably, the end of the push rod with the sliding sleeve is offset to the side away from the first guide rod to form a bend, the length of the bend is equivalent to the length of the two connecting rods, and when the pressure bearing plate moves up and down under force, the push rod moves reversely.

[0016] Compared with the prior art, the present application has the following beneficial effects: 1. The present application mainly solves the further drying problem of dewatered sludge, realizes continuous drying treatment of the sludge by combining hot air drying with automatic overturning and unloading mechanism, reduces manual intervention, effectively reduces the water content of the sludge after sufficient drying, greatly reduces the weight and volume of the sludge, reduces the breeding of pathogenic bacteria and the generation of foul gas, reduces the risk of secondary pollution, reduces the land occupation area of landfill, and facilitates subsequent resource utilization, thereby providing an efficient and environmentally friendly technical solution for sludge treatment.

[0017] 2. The telescopic unit design of the present application realizes dynamic air supply through the reciprocating movement of the air guide pipe, significantly improves the sludge drying efficiency and uniformity, and effectively solves the key problems such as insufficient local drying, air hole blockage, and sludge bonding that easily occur in traditional static drying; the inside of the shell realizes regular reciprocating movement through the telescopic unit driving the air guide pipe, the air guide pipe dynamically supplies air to the sludge to be treated on the slide above to the deep layer inside, effectively prevents the sludge from sticking and solidifying with the air guide pipe while starting the drying treatment, avoids the problem of air hole blockage, and ensures the smooth progress of subsequent automatic unloading operation.

[0018] Specifically, during the rotation of the shell, the pressure-bearing plate and the open pressure ring are driven to produce relative displacement movement, and through the periodic intermittent contact of the ridges and the grooves, the pressure-bearing plate is formed to move up and down reciprocatingly; the pressure-bearing plate further drives the push rod to realize synchronous up-and-down reciprocating movement, since the first guide rod and the stand are rigidly fixedly connected, the push rod drives the second guide rod to realize up-and-down reciprocating movement through the sliding sleeve structure, and the air guide pipe fixedly installed on the upper end of the second guide rod moves synchronously, so that the air guide pipe periodically passes through the through hole formed on the slide, and the air holes formed on the side wall of the air guide pipe and the top air hole continuously supply air to the sludge, realizing synchronous drying treatment inside and outside.

[0019] 3. The lock unit design of the present application realizes accurate positioning control and vibration cleaning function of the slide, ensures the stability of the sludge in the drying process through the intelligent locking and unlocking mechanism, produces strong vibration impact when unloading, effectively promotes the rapid separation of the dried sludge, and at the same time, thoroughly vibrates and cleans the attached sludge on the shell and the air guide pipe, reduces the probability of air hole blockage, and improves the self-cleaning ability and operation stability of the equipment; Specifically, when the shell rotates to approach the discharge passage position with the roller, the pressure-bearing plate is subjected to a large downward extrusion action of the wedge body on the open pressure ring, and through the lever transmission principle, the push rod is reversely driven to move, so that the second guide rod is greatly raised, so that the limiting groove on the slide accurately fits on the hook body structure of the lock rod to form locking; then the shell smoothly enters the opening area of the open pressure ring, and through the cooperation of the small bevel gear and the segmented face gear, the side wall of the roller avoiding slide of the touch rod is contacted and touched in the 0-degree overturning process, the touch rod is pushed into the inside of the shell, according to the lever transmission principle, the lock rod is pushed to rotate to make the hook body completely separate from the bottom of the limiting groove, and the locking state is released, at this time, the push rod is rapidly lowered under the action of the tension spring, further driving the second guide rod and the slide to move downward synchronously, so that the vibration plate fixed on the air guide pipe rapidly moves downward and strongly impacts the shell bottom plate to produce violent vibration, which effectively promotes the rapid separation of the sludge that has completed drying from the shell.

[0020] 4、The turnover unloading mechanism of the present application realizes complete unloading of sludge through accurate 0-degree turnover action, effectively solves the problems of sludge residue and adsorption in the traditional unloading method, greatly reduces the adsorption force between the sludge and the shell through the completely inverted state, and ensures that the dried sludge is quickly and completely separated; the segmented face gear outside the drum cooperates with the small bevel gear to run, since the segmented face gear is arranged directly above the discharge passage, the segmented face gear only acts on the small bevel gear that is immediately adjacent, and after the shell is accurately turned 0 degrees to complete the unloading operation, it is turned 0 degrees again to realize accurate resetting into the next working cycle, through the 0-degree complete rotation action, the sludge to be unloaded and the shell form a completely inverted state, greatly reducing the adsorption force and adhesion force between them, effectively promoting the quick and complete unloading of the dried sludge; Specifically, when the segmented face gear and the small bevel gear mesh and rotate, the shell is directly driven to perform a turnover motion, since the opening compression ring at this working position is specially provided with an open opening structure, the opening compression ring does not form any mechanical interference to the shell, fully ensuring that the shell smoothly performs the turnover action, wherein the geometric size of the opening section on the opening compression ring is ensured to be greater than the maximum external size of the shell, thereby ensuring the normal performance of the turnover and resetting actions; since the discharge passage is located at the next working position of the opening of the opening compression ring, the shell can quickly enter the next drying cycle after completing the quick and efficient unloading, realizing continuous automatic operation. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a three-dimensional schematic view of the overall structure of the device of the present application; Figure 2 is a three-dimensional schematic view of the split structure of the device of the present application; Figure 3 is a three-dimensional schematic view of the external mounting structure of the drum of the device of the present application; Figure 4 is a schematic view of the internal structure of the drum of the device of the present application Figure 1 ; Figure 5 is a schematic view of the internal structure of the drum of the device of the present application Figure 2 ; Figure 6 is a three-dimensional schematic view of the internal structure of the shell of the device of the present application Figure 1 ; Figure 7 is a three-dimensional schematic view of the internal structure of the shell of the device of the present application Figure 2 ; Figure 8 is a three-dimensional schematic view of the mounting structure of the telescopic unit of the device of the present application; Figure 9 is a three-dimensional schematic view of the split structure of the locking unit of the device of the present application; In the figure: barrel-11; hot air blower-12; first ring-13; second ring-14; feeding port-15; discharging channel-16; air outlet-17; central column-18; first crossbar-19; second crossbar-20; roller-21; motor-22; gear-23; ring gear-24; vertical rod-25; first convex ring-26; second convex ring-27; small bevel gear-28; segmented face gear-29; guard ring-30; housing-31; inner sleeve ring-32; support ring-33; split compression ring-34; bearing-35; vertical column-36; push rod-37; first guide rod-38; first connecting rod-39; second guide rod-40; adapter block-41; sliding plate-42; air guide tube-43; top plate-44; avoidance groove-45; vibration plate-46; tension spring-47; anti-blocking cap-48; pressure plate-49; ridge-50; sink-51; wedge-52; limiting groove-53; bracket-54; locking rod-55; return spring-56; hinged seat-57; contact rod-58. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described in combination with the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments of the present application.

[0023] The contents not described in detail in the specification belong to the prior art known to those skilled in the art. In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0024] Figures 1-9As shown in the middle, an environmental protection device for sludge oxidation dewatering reaction based on ultrasonic vibration, including a sludge drying device installed at the sludge outlet of the sludge dewatering device, the sludge drying device includes a cylinder 11, the top of the cylinder 11 is fixed with a second ring body 14, the upper part of the second ring body 14 is fixedly connected with a first ring body 13 through a plurality of vertical rods 25, a roller 21 is rotatably arranged between the first ring body 13 and the second ring body 14, and a power assembly is arranged on the outer wall of the roller 21; the top of the first ring body 13 is fixed with a hollow cone barrel, the top of the hollow cone barrel is provided with an air outlet 17 and a feeding port 15, the bottom of the cylinder 11 is provided with a bottom plate, and the bottom plate is fixedly provided with a hot air fan 12; a center column 18 is arranged in the roller 21, the top of the center column 18 is fixedly connected with the first ring body 13 through a plurality of first cross rods 19, the bottom of the center column 18 extends into the cylinder 11 and is fixedly connected with the inner wall of the cylinder 11 through a plurality of second cross rods 20, and a plurality of drying assemblies are arranged between the roller 21 and the center column 18.

[0025] The technical scheme of the present application mainly solves the problem of sludge drying after sludge oxidation dewatering reaction based on ultrasonic vibration, and the sludge dewatering device is the prior art, which can refer to the Chinese patent document (publication number: CN112209596B), named a sludge dewatering device and method based on ultrasonic waves.

[0026] The present application mainly solves the problem of further drying of sludge after dewatering, realizes continuous drying treatment of sludge by hot air drying combined with automatic overturning and unloading mechanism, reduces manual intervention, effectively reduces the water content of sludge after sufficient drying, greatly reduces the weight and volume of sludge, reduces the breeding of pathogenic bacteria and the generation of foul gas, reduces the risk of secondary pollution, reduces the land occupation area of landfill, and facilitates subsequent resource utilization, thereby providing an efficient and environmentally friendly technical solution for sludge treatment.

[0027] Specifically, the hot air fan 12 is started, and the sludge after the separation treatment enters the inside of the device through the feeding port 15, and the sludge naturally falls on the shell 31 below; at the same time, the motor 22 is started, the motor 22 drives the gear 23 to rotate, the gear 23 is in meshing transmission with the gear ring 24, and the whole drum 21 is driven to rotate, and the drum 21 in turn drives the array-arranged multiple shells 31 to rotate synchronously; the shell 31 loaded with sludge continuously receives the hot air generated by the hot air fan 12 during the rotation process to be fully dried; when the drying operation is completed, the shell 31 loaded with dried sludge rotates to the directly above of the discharging channel 16 and is accurately positioned at the opening position of the opening pressure ring 34; at this time, the shell 31 is in meshing transmission with the bevel gear 28 through the segmented face gear 29, and a 180-degree overturning action is realized, so that the dried sludge is completely poured into the discharging channel 16; then the shell 31 is overturned by 180 degrees again to return to the initial position to complete resetting; the unloaded shell 31 continues to rotate with the drum 21 and moves to the below of the feeding port 15 to receive fresh sludge to be treated again, and the next drying cycle is started; the whole process realizes continuous and automatic operation, and the sludge treatment efficiency is greatly improved.

[0028] Further, the inner ring sizes of the first ring body 13 and the second ring body 14 are the same, a first convex ring 26 is fixed on one side of the first ring body 13 close to the drum 21, a second convex ring 27 is fixed on one side of the second ring body 14 close to the drum 21, the first convex ring 26 and the second convex ring 27 are kept the same distance from the inner ring of the ring body, and the two ends of the drum 21 are respectively in rotational abutment with the first ring body 13 and the second ring body 14, and the outer periphery of the two ends of the drum 21 is respectively rotatably sleeved in the first convex ring 26 and the second convex ring 27.

[0029] Further, the drying assembly comprises multiple shells 31 arranged in a circumcenter array, an inner sleeve ring 32 is sleeved on the central column 18 through a bearing 35, the outer peripheral surface of the inner sleeve ring 32 is fixedly connected with the inner wall of the drum 21 through multiple link plates arranged in an array, and one shell 31 is arranged between adjacent two link plates; a plurality of through holes are formed in the shell 31 and arranged along the axial direction of the central column 18; the support ring 33 is fixedly arranged on the central column 18.

[0030] It should be noted that the motor and the hot air fan can be commercially available and belong to the prior art, and the working principle is not described in detail here, and the motor and the hot air fan are provided with an external power supply.

[0031] Further, the housing 31 is provided with two fixed shafts with overlapping axes, one fixed shaft is located near the inner wall of the drum 21 and is mounted on the drum through a bearing, and the other fixed shaft is located near the outer surface of the inner ring 32 and is mounted on the inner ring 32 through a bearing, both fixed shafts are located on the symmetry plane of the housing 31, and the extension line of the connecting line of the two fixed shafts passes through the center of the same diameter plane of the center column 18; the fixed shaft located on the drum 21 extends away from the center and is provided with a small bevel gear 28 at the end, and a segmented face gear 29 is fixed at the top of the second ring body 14; when the drum 21 rotates, the segmented face gear 29 meshes with the small bevel gear 28 next to it, so that the corresponding box body rotates 180 degrees around the axis of the fixed shaft, and the dried sludge on the surface of the box body is poured into the discharge channel 16; It should be noted that the small bevel gear and the segmented face gear form meshing transmission, the circular truncated cone body of the small bevel gear is installed vertically, the narrow end of the axial trapezoidal tooth corresponds to the narrow tooth of the inner diameter of the face gear, and the wide end corresponds to the wide tooth of the outer diameter of the face gear; when the bevel gear rotates around the vertical shaft, the trapezoidal tooth of the bevel gear forms linear contact meshing with the radial trapezoidal tooth on the end face of the face gear; when the small bevel gear 28 rotates with the drum 21, the segmented face gear 29 meshes with the small bevel gear 28 next to it, so that the corresponding box body rotates 180 degrees around the axis of the fixed shaft, and the dried sludge on the surface of the box body is poured into the discharge channel 16, and continues to mesh and rotate 180 degrees, so that the front surface of the housing 31 is upwardly formed to be reset; the segmented face gear 29 is arranged above the discharge channel 16 and meshes with the small bevel gear 28 passing through it, and the box body is placed for 360 degrees and then disengages from the meshing; A damping member is arranged on the fixed shaft next to the drum 21, which is beneficial to maintain the horizontal state of the housing 31, wherein the damping member can be a friction plate group compressed axially by using a corrugated spring or a disc spring, the friction force is changed by adjusting the pressure, and a pair of friction plates (metal / composite material) are mounted on the rotating shaft; the spring is compressed by a nut to control the pre-pressure.

[0032] A protective ring 30 is arranged between the center column 18 and the plurality of housings 31, and the protective ring 30 is used to protect the central empty area and avoid sludge or sundries from entering the central area.

[0033] Further, the shell 31 is a hollow cavity structure, two groups of telescopic units are symmetrically arranged inside the box body with the fixed shaft as the center, and a pressure bearing plate 49 is fixed between the two groups of telescopic units; an open pressure ring 34 is fixedly sleeved on the center column 18, the open pressure ring 34 is located above the roller 21, the open pressure ring 34 extends outward into the inside of the shell 31, an avoiding groove 45 is formed on the box body corresponding to the open pressure ring 34, the avoiding groove 45 is L-shaped and has two ends, the first end of the avoiding groove 45 faces the center column 18, and the second end faces the direction of the barrel 11; the pressure bearing plate 49 is located at the second end of the avoiding groove, and the pressure bearing plate 49 is arranged corresponding to the open pressure ring 34, when the open pressure ring 34 extrudes and pushes the pressure bearing plate 49, the telescopic unit is triggered to work.

[0034] Further, the opening of the open pressure ring 34 is located above the discharge channel 16, which is beneficial to the turnover and unloading of the shell 31, a plurality of grooves 51 are arranged on one side of the open pressure ring 34 in contact with the pressure bearing plate 49, a plurality of ridges 50 are arranged on the pressure bearing plate 49 corresponding to the grooves 51, when the open pressure ring 34 moves relative to the pressure bearing plate 49, the intermittent contact between the ridges 50 and the grooves 51 causes the pressure bearing plate 49 to displace up and down; a wedge-shaped body 52 is arranged on one side of the open pressure ring 34 close to the opening and in contact with the pressure bearing plate 49, the highest point of the wedge-shaped body is located at the end of the open pressure ring 34, and the direction of the roller 21 is to move from low to high along the wedge-shaped body 52.

[0035] The turnover and unloading mechanism of the present application realizes complete unloading of sludge through precise 180-degree turnover action, effectively solves the problems of sludge residue and adsorption in the traditional unloading method, greatly reduces the adsorption force between the sludge and the shell in the completely inverted state, and ensures that the dried sludge is quickly and completely separated; the segmented face gear 29 outside the roller 21 cooperates with the small bevel gear 28 to run, since the segmented face gear 29 is arranged directly above the discharge channel 16, the segmented face gear 29 only acts on the small bevel gear 28 that is immediately adjacent, after the shell 31 is accurately turned over by 180 degrees to complete the unloading operation, it is turned over by 180 degrees again to realize precise resetting into the next working cycle, through the 180-degree complete rotation action, the sludge to be unloaded and the shell 31 form a completely inverted state, greatly reducing the adsorption force and adhesion force between them, effectively promoting the quick and complete unloading of the dried sludge.

[0036] Specifically, when the segmental face gear 29 is in meshing rotation with the pinion 28, the shell 31 is directly driven to perform a turnover movement. Since the opening ring 34 at this working position is specially provided with an open structure, the opening ring 34 does not form any mechanical interference to the shell 31, fully guaranteeing the smooth turnover movement of the shell 31. The geometric size of the opening section of the opening ring 34 is ensured to be greater than the maximum external size of the shell 31, thereby ensuring the normal performance of the turnover and resetting actions. Since the discharge channel 16 is located at the next working position of the opening of the opening ring 34, the shell 31 can quickly enter the next drying cycle after completing the rapid and efficient discharging, realizing continuous and automatic operation.

[0037] Further, the telescopic unit comprises two opposite columns 36, the bottom of each column 36 is fixedly connected with a first guide rod 38, each column 36 is provided with a sliding groove on the opposite side, and a second guide rod 40 is slidably arranged in the opposite sliding grooves; a push rod 37 is rotatably arranged on the column 36 near the avoiding groove 45 through a pin shaft, one end of the push rod 37 is fixedly connected with the end of a pressure bearing plate 49, the end of the push rod 37 away from the pressure bearing plate 49 is fixedly provided with a first sliding sleeve, and the first sliding sleeve is slidably sleeved on the second guide rod 40; the push rod 37 is rotatably arranged with a first connecting rod 39 and a second connecting rod through a shaft pin, the first connecting rod 39 is slidably installed on the second guide rod 40 through a second sliding sleeve, and the second connecting rod is slidably installed on the first guide rod 38 through a third sliding sleeve; a tension spring 47 is arranged between the push rod 37 and the bottom plate of the shell 31, and the tension spring 47 is located between the two columns 36; the two ends of the second guide rod 40 are respectively provided with an engaging block 41, the side of the engaging block 41 away from the bottom plate of the shell 31 is fixedly provided with a sliding plate 42, a plurality of air guide pipes 43 are penetratingly arranged on the sliding plate 42, the air guide pipes 43 slide through the through holes in the upper and lower end faces of the shell 31, the top end of the air guide pipe 43 is provided with a anti-blocking cap 48, and the bottom of the air guide pipe 43 is fixedly sleeved with a vibrating plate 46, and the vibrating plate 46 is located between the sliding plate 42 and the bottom plate of the shell 31. It should be noted that the end of the push rod 37 with the sliding sleeve is offset to form a bend away from the first guide rod 38, and the length of the bend is equivalent to the length of the two connecting rods. When the pressure bearing plate 49 moves up and down under force, the push rod 37 moves reversely, and during the downward or upward movement of the push rod 37, the second guide rod 40 moves downward or upward. The end of the push rod 37 and the connecting rods are slidably arranged on the guide rods through the sliding sleeves, which ensures the stability of the structure. A plurality of air holes are formed in the side wall of the air guide pipe 43, which is beneficial to uniform heating of the sludge and reduces the phenomenon of dry outside and wet inside of the sludge. The external size of the shell 31 is slightly smaller than the size of the outer circumferential accommodating space, so as to avoid interference during rotation. There is a gap between adjacent shells 31, which is beneficial to the segmentation of the dried sludge and facilitates smooth rotation.

[0038] The telescopic unit design of the present application realizes dynamic air supply through reciprocating movement of the air guide pipe 43, significantly improves sludge drying efficiency and uniformity, and effectively solves key problems such as local insufficient drying, air hole blockage, and sludge bonding that are prone to occur in traditional static drying; the inside of the shell 31 realizes regular reciprocating movement through driving of the telescopic unit on the air guide pipe 43, the air guide pipe 43 performs dynamic air supply to the internal deep layer of the sludge to be treated above the sliding plate 42, effectively prevents sludge from sticking and solidifying with the air guide pipe 43 while starting the drying treatment, avoids the problem of air hole blockage, and ensures the smooth progress of subsequent automatic unloading operation.

[0039] Specifically, during rotation of the shell 31, the pressure-bearing plate 49 and the open pressure ring 34 are driven to produce relative displacement movement, periodic intermittent contact of the ridge 50 and the sink 51 forms up-down reciprocating movement of the pressure-bearing plate 49; the pressure-bearing plate 49 in turn drives the push rod 37 to realize synchronous up-down reciprocating movement, since the first guide rod 38 and the stand column 36 are rigidly fixedly connected, the push rod 37 drives the second guide rod 40 to realize up-down reciprocating movement through the sliding sleeve structure, the air guide pipe 43 fixedly installed at the upper end of the second guide rod 40 moves synchronously, so that the air guide pipe 43 periodically passes through the through hole formed in the sliding plate 42, the air holes formed in the side wall of the air guide pipe 43 and the top air hole continuously perform active dynamic air supply to the sludge, realizing internal and external synchronous drying treatment.

[0040] Further, a lock catch unit is arranged on the inner wall of the shell 31 and close to the roller 21, the lock catch unit is located between the sliding plate 42 and the top plate 44 of the shell 31, the lock catch unit comprises a pair of brackets 54 fixedly arranged on the inner wall of the shell 31, a lock rod 55 is rotatably arranged on the bracket 54 through a pin shaft, two return springs 56 are fixedly connected between the lock rod 55 and the inner wall of the box body, the two return springs 56 are respectively located on the two sides of the bracket 54, a hook body is fixedly arranged on one end of the lock rod 55 close to the sliding plate 42, a limiting groove 53 is formed in the sliding plate 42 corresponding to the hook body; a hinged seat 57 is connected to one end of the lock rod 55 away from the hook body, a touch rod 58 is fixedly arranged on the hinged seat 57, the touch rod 58 extends through the side wall of the shell 31 to be close to the roller 21, an avoiding slide is formed in the inner wall of the roller 21 corresponding to the touch rod 58, the touch rod 58 extends into the avoiding slide; It should be noted that when the lock rod 55 rotates, the touch rod 58 will appear a small amount of deviation, the roller 21 has a through hole penetrated by the touch rod 58, the diameter of the through hole is greater than the outer diameter of the touch rod, which compensates for the deviation and is beneficial to the stability of the structure.

[0041] The lock unit of the application realizes accurate positioning control and vibration cleaning function of the sliding plate 42, ensures the stability of the sludge in the drying process through the intelligent locking and unlocking mechanism, and produces strong vibration impact when discharging, effectively promotes the rapid separation of the dried sludge, and at the same time, thoroughly vibrates and cleans the attached sludge on the shell 31 and the air guide pipe 43, reduces the probability of air hole blockage, and improves the self-cleaning ability and operation stability of the equipment. The lock unit arranged inside the shell 31 cooperates with the wedge-shaped body 52 on the opening compression ring 34 to realize controllable limiting function of the sliding plate 42, so that the sliding plate 42 is firmly locked with the lock rod 55 before the shell 31 enters the opening area of the opening compression ring 34, and the intelligent unlocking mechanism is triggered during the rotation of the shell 31, the sliding plate 42 and the vibration plate 46 are synchronously and quickly lowered, the vibration plate 46 strongly impacts the bottom plate of the shell 31 to produce violent vibration impact, which promotes the rapid separation of the dried sludge, and at the same time, efficiently vibrates and cleans the residual sludge attached to the shell 31 and the air guide pipe 43, effectively reducing the probability of air hole blockage.

[0042] Specifically, when the shell 31 rotates with the roller 21 to approach the discharge passage 16 position, the pressure plate 49 is subjected to a large downward extrusion of the wedge-shaped body 52 on the opening compression ring 34, and through the lever transmission principle, reversely drives the push rod 37 to move, so that the second guide rod 40 is greatly raised, so that the limiting groove 53 on the sliding plate 42 is accurately fitted on the hook body structure of the lock rod 55 to form locking; then the shell 31 smoothly enters the opening area of the opening compression ring 34, and through the cooperation of the small bevel gear 28 and the segmented face gear 29, the contact rod 58 contacts the side wall of the non-avoiding slide of the roller 21 during the 180-degree overturning process, the contact rod 58 is pushed into the shell 31, according to the lever transmission principle, the lock rod 55 is pushed to rotate to make the hook body completely separate from the bottom of the limiting groove 53, and the locking state is released, at this time, under the action of the tension spring 47, the push rod 37 is quickly lowered, further driving the second guide rod 40 and the sliding plate 42 to synchronously move downward, so that the vibration plate 46 fixed on the air guide pipe 43 quickly moves downward and strongly impacts the bottom plate of the shell 31 to produce violent vibration, which effectively promotes the rapid separation of the dried sludge from the shell 31.

[0043] Further, the power assembly comprises a gear ring 24 fixedly sleeved on the outer periphery of the roller 21, and a motor 22 fixed on the second ring body 14, and a gear 23 fixed on the output shaft of the motor 22, and the gear 23 meshes with the gear ring 24.

[0044] Further, one end of the push rod 37 having a sliding sleeve is offset to the side away from the first guide rod 38 to form a bend, and the length of the bend is equivalent to the length of the two connecting rods, so that when the pressure plate 49 moves up and down, the push rod 37 moves reversely.

[0045] The technical concept of the present application is illustrated by the above-mentioned embodiments, but the present application is not limited to the above-mentioned embodiments, i.e. it does not mean that the present application must rely on the above-mentioned embodiments to be implemented. It should be understood by those skilled in the art that the related improvements of the present application are within the protection scope and disclosure scope of the present application.

Claims

1. An environmentally friendly sludge oxidation and dewatering reaction device based on ultrasonic vibration, comprising a sludge drying device installed at the sludge outlet of the sludge dewatering device, the sludge drying device comprising a cylinder (11), characterized in that, A second ring (14) is fixed to the top of the cylinder (11). The first ring (13) is fixedly connected to the top of the second ring (14) by several uprights (25). A roller (21) is rotatably arranged between the first ring (13) and the second ring (14). A power assembly is provided on the outer wall of the roller (21). A hollow cone is fixed to the top of the first ring (13). An air outlet (17) and a feed inlet (15) are provided on the top of the hollow cone. A bottom plate is provided at the bottom of the cylinder (11), and a hot air blower (12) is fixed on the bottom plate. A central column (18) is provided inside the roller (21). The top of the central column (18) is fixedly connected to the first ring (13) by several first crossbars (19). The bottom of the central column (18) extends into the cylinder (11) and is fixedly connected to the inner wall of the cylinder (11) by several second crossbars (20). Multiple drying components are provided between the roller (21) and the central column (18).

2. The environmentally friendly sludge oxidation and dewatering reaction device based on ultrasonic vibration according to claim 1, characterized in that, The inner rings of the first ring body (13) and the second ring body (14) have the same size. A first convex ring (26) is fixed on the side of the first ring body (13) near the roller (21), and a second convex ring (27) is fixed on the side of the second ring body (14) near the roller (21). The first convex ring (26) and the second convex ring (27) maintain the same distance from the inner ring of the ring body. The two ends of the roller (21) rotatably abut against the first ring body (13) and the second ring body (14) respectively, and the outer circumferences of the two ends of the roller (21) are rotatably fitted inside the first convex ring (26) and the second convex ring (27) respectively.

3. The environmentally friendly sludge oxidation and dewatering reaction device based on ultrasonic vibration according to claim 2, characterized in that, The drying assembly includes multiple housings (31) arranged in a circular array. An inner ring (32) is fitted on the central column (18) through a bearing (35). The outer circumferential surface of the inner ring (32) is fixedly connected to the inner wall of the roller (21) through multiple connecting plates arranged in an array. A housing (31) is installed between two adjacent connecting plates. Several through holes are opened on the housing (31), and the through holes are arranged along the axial direction of the central column (18). A support ring (33) is fixedly fitted on the central column (18), and the top of the support ring (33) rotates to abut the bottom of the inner ring (32).

4. The environmentally friendly sludge oxidation and dewatering reaction device based on ultrasonic vibration according to claim 3, characterized in that, Two fixed shafts with overlapping axes are provided on the housing (31). One fixed shaft is located on the side close to the inner wall of the drum (21) and is mounted on the drum by bearings. The other fixed shaft is located on the side close to the outer surface of the inner ring (32) and is mounted on the inner ring (32) by bearings. Both fixed shafts are located on the plane of symmetry of the housing (31). The extension line of the line connecting the two fixed shafts passes through the center of the plane of the same diameter of the central column (18). The fixed shaft on the drum (21) extends away from the center and a small bevel gear (28) is fixed at the end. A segmented surface gear (29) is fixed at the top of the second ring (14). When the drum (21) rotates, the segmented surface gear (29) meshes with the adjacent small bevel gear (28), causing the corresponding box to rotate 180 degrees around the axis of the fixed shaft, and the dried sludge on the surface of the box is poured into the discharge channel (16).

5. The environmentally friendly sludge oxidation and dewatering reaction device based on ultrasonic vibration according to claim 4, characterized in that, The housing (31) is a hollow cavity structure. Two sets of telescopic units are symmetrically arranged inside the housing with a fixed axis as the center. A pressure plate (49) is fixed between the two sets of telescopic units. An open pressure ring (34) is fixedly sleeved on the central column (18). The open pressure ring (34) is located above the roller (21). The open pressure ring (34) extends outward into the housing (31). A relief groove (45) is opened on the housing corresponding to the open pressure ring (34). The relief groove (45) is L-shaped and has two ends. The first end of the relief groove (45) faces the central column (18), and the second end faces the cylinder (11). The pressure plate (49) is located at the second end of the relief groove. The pressure plate (49) is set corresponding to the open pressure ring (34). When the open pressure ring (34) squeezes and pushes the pressure plate (49), the telescopic unit is triggered to work.

6. The environmentally friendly sludge oxidation and dewatering reaction device based on ultrasonic vibration according to claim 5, characterized in that, The opening of the open pressure ring (34) is located above the discharge channel (16), which facilitates the flipping and unloading of the shell (31). Several sinkers (51) are arranged in an array on the side of the open pressure ring (34) that contacts the pressure plate (49). Multiple ridges (50) are arranged on the pressure plate (49) corresponding to the sinkers (51). When the open pressure ring (34) moves relative to the pressure plate (49), the ridges (50) and sinkers (51) make intermittent contact, causing the pressure plate (49) to move up and down. A wedge (52) is arranged on the side of the open pressure ring (34) that is close to the opening and contacts the pressure plate (49). The highest point of the wedge is located at the end of the open pressure ring (34). The roller (21) rotates along the wedge (52) from low to high.

7. The environmentally friendly sludge oxidation and dewatering reaction device based on ultrasonic vibration according to claim 5, characterized in that, The telescopic unit includes two opposing columns (36), with a first guide rod (38) fixedly connected to the bottom of each column (36). Sliding grooves are provided on opposite sides of each column (36), and a second guide rod (40) is slidably mounted in the opposing grooves. A push rod (37) is rotatably mounted on the column (36) near the clearance groove (45) via a pin. One end of the push rod (37) is fixedly connected to the end of a pressure plate (49), and a first sliding sleeve is fixedly mounted on the end of the push rod (37) away from the pressure plate (49). The first sliding sleeve is slidably mounted on the second guide rod (40). A first connecting rod (39) and a second connecting rod are rotatably mounted on the push rod (37) via a pin. The first connecting rod (39) is slidably mounted on the second guide rod (40) via the second sliding sleeve. The second connecting rod is slidably mounted on the first guide rod (38) through the third sliding sleeve; a tension spring (47) is set between the push rod (37) and the bottom plate of the housing (31), and the tension spring (47) is located between the two columns (36); the two ends of the second guide rod (40) are respectively provided with connecting blocks (41), and a sliding plate (42) is fixed on the side of the connecting block (41) away from the bottom plate of the housing (31). Several air guide tubes (43) are passed through the sliding plate (42), and the air guide tubes (43) slide through the through holes on the upper and lower end faces of the housing (31). An anti-blocking cap (48) is set at the top of the air guide tube (43), and a vibration plate (46) is fixedly sleeved at the bottom of the air guide tube (43). The vibration plate (46) is located between the sliding plate (42) and the bottom plate of the housing (31).

8. The environmentally friendly sludge oxidation and dewatering reaction device based on ultrasonic vibration according to claim 7, characterized in that, A locking unit is provided on the inner wall of the housing (31) near the roller (21). The locking unit is located between the slide plate (42) and the top plate (44) of the housing (31). The locking unit includes a pair of brackets (54) fixed on the inner wall of the housing (31). A locking rod (55) is rotatably mounted on the brackets (54) via a pin. Two return springs (56) are fixedly connected between the locking rod (55) and the inner wall of the box. The two return springs (56) are located on both sides of the bracket (54). A hook is fixed at one end of the locking rod (55) near the slide plate (42). A limiting groove (53) is opened on the slide plate (42) corresponding to the hook. A hinge seat (57) is connected to one end of the locking rod (55) away from the hook. A contact rod (58) is fixed at the hinge seat (57). The contact rod (58) extends through the side wall of the shell (31) to the roller (21). An avoidance slide is opened on the inner wall of the roller (21) corresponding to the contact rod (58). The contact rod (58) extends into the avoidance slide.

9. The environmentally friendly sludge oxidation and dewatering reaction device based on ultrasonic vibration according to claim 1, characterized in that, The power assembly includes a gear ring (24) fixedly sleeved on the outer periphery of the roller (21), a motor (22) fixed on the second ring body (14), a gear (23) fixed on the output shaft of the motor (22), and the gear (23) meshing with the gear ring (24).

10. The environmentally friendly sludge oxidation and dewatering reaction device based on ultrasonic vibration according to claim 7, characterized in that, The push rod (37) with a sliding sleeve at one end is offset away from the first guide rod (38) to form a bend. The length of the bend is equivalent to the length of the two connecting rods. When the pressure plate (49) is subjected to force and moves up and down, the push rod (37) moves in the opposite direction.

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