Ditch dredging sludge treatment device

Abstract

The utility model relates to the technical field of sewer sludge, and discloses a sewer sludge treatment device. According to the utility model, the screening end is arranged in the vibration screening chamber in the shell, the dredging sludge can be subjected to vibration screening treatment in the vibration screening chamber, and the vibration end acts on the screening end, so that relatively large substances such as relatively large particles and relatively large wastes in the dredging sludge can generate relative movement; the ultrasonic cavity is communicated with the vibration screening cavity, so that the screened sludge can enter the ultrasonic cavity to be subjected to cavitation, microjet, mechanical effect and the like of ultrasonic waves, colloid and aggregate structures are destroyed, moisture and fine substances in the sludge are promoted to be fully separated, and the sludge separation effect is improved. The dewatering effect can be improved, so that the sludge treatment efficiency is further improved, and the operation cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of ditch sludge technology, specifically to a ditch sludge treatment device. Background Technology

[0002] Sewage sludge is formed when large particles of suspended solids contained in sewage inside urban pipe networks settle under gravity during normal operation of the pipe network, gradually forming pipe network sediments.

[0003] The composition of sewage sludge in my country is quite unique, mainly consisting of inorganic substances such as SiO2, CaO, and Al2O3, mixed with a large amount of sand, gravel, organic matter, and domestic waste. After screening, the inorganic components can be recycled for low-grade building materials, such as sintered bricks, non-sintered bricks, permeable bricks, and ceramsite, or used as aggregate for silicate products, and for backfilling pipeline foundations and trenches, thus achieving resource reuse.

[0004] However, current domestic sewage sludge treatment technology mainly relies on imported processes and equipment. Due to the widespread existence of interlocking and combined sewer systems in urban pipe networks, the composition of sewage sludge is quite complex. For example, biofilms and organic matter encapsulating gravel are prominent features in sewage sludge, resulting in limited treatment effectiveness. Utility Model Content

[0005] In view of this, the present invention provides a sludge treatment device for drainage ditches to solve the problem of limited treatment effect on sludge from drainage ditches.

[0006] Specifically, the sludge treatment device for unclogging ditches provided by this utility model includes a shell, a vibration assembly, and an ultrasonic assembly. The shell contains a vibrating screening chamber and an ultrasonic chamber arranged at intervals and connected to each other. The vibrating screening chamber has an inlet at its end away from the ultrasonic chamber, and the ultrasonic chamber has a first outlet at its end away from the vibrating screening chamber. The vibration assembly has a screening end and a vibrating end. The screening end is located inside the vibrating screening chamber, and the vibrating end acts on the screening end to vibrate and screen the sludge entering the vibrating screening chamber. The ultrasonic assembly is installed inside the ultrasonic chamber.

[0007] Beneficial Effects: By incorporating a screening end within the vibrating screening chamber inside the casing, the sludge from the drainage ditch can be vibrated and screened within this chamber. The vibration of the screening end enhances the relative motion between larger particles and waste materials within the sludge, causing them to separate from smaller particles and the liquid, thus improving screening efficiency. This makes the treated sludge easier for subsequent processing. Connecting the ultrasonic chamber and the vibrating screening chamber allows the screened sludge to enter the ultrasonic chamber and be subjected to cavitation, microjets, and mechanical effects of ultrasound, disrupting colloidal and aggregate structures and promoting thorough separation of water and fine matter. This enhances dewatering efficiency and further improves sludge treatment efficiency. In short, this drainage sludge treatment device integrates vibrating screening and ultrasonic treatment into one unit, ensuring efficient sludge treatment within the device and reducing operating costs.

[0008] In one optional embodiment, the vibration assembly includes a screening component and a vibration motor. The screening component, serving as the screening end of the vibration assembly, is installed between the vibration screening chamber and the ultrasonic chamber. The drive end of the vibration motor, serving as the vibration end of the vibration assembly, is connected to the screening component and is used to drive the screening component to vibrate.

[0009] Beneficial effects: By using the drive end of the vibrating motor as the vibrating end and directly connecting it to the screening chamber as the screening end, it is possible to ensure that the vibration energy is efficiently and directly transmitted to the screening components, reducing energy loss during the transmission process. This allows the screening components to generate stable and strong vibrations, better separating solid particles from liquid in the sludge, achieving efficient screening treatment, and thus effectively improving the efficiency of sludge screening.

[0010] In one optional embodiment, the sludge treatment device further includes a separation partition, which is installed on the side of the screening component near the ultrasonic chamber. The separation partition is composed of at least two stacked plate-like structures. In two adjacent plate-like structures, one plate-like structure includes a first through hole and a first solid, with multiple first through holes and a first solid between adjacent first through holes. The other plate-like structure includes a second through hole and a second solid, with multiple second through holes and a second solid between adjacent second through holes. The adjacent plate-like structures are in an open state where the first through hole and the second through hole are connected, and in a closed state where the solid of the plate-like structure near the ultrasonic chamber blocks the through hole of the plate-like structure near the vibrating screening chamber. The adjacent plate-like structures can move relative to each other under external force to switch between the open and closed states.

[0011] Beneficial effects: The separation baffle allows for relative movement between adjacent plate-like structures driven by external force, switching between open and closed states. Specifically, in the open state, the first and second through holes are connected, allowing sludge and liquid obtained after vibrating screening to pass smoothly through the separation baffle and enter the ultrasonic chamber for ultrasonic treatment. In the closed state, the solid portion of the plate-like structure closest to the ultrasonic chamber blocks the through holes of the plate-like structure closest to the vibrating screening chamber, thus restricting or preventing the passage of sludge and liquid, allowing for more thorough screening of the sludge within the vibrating screening chamber. In other words, by switching the separation baffle between open and closed states, larger substances can be initially screened out, while smaller substances such as particles and agglomerates can enter the ultrasonic chamber through the separation baffle. Within the ultrasonic chamber, the cavitation and micro-jet effects of ultrasound further break down fine particles and agglomerates in the sludge, improving the dewatering effect and separation efficiency. The sludge is graded to make it purer and easier to process later.

[0012] In one alternative implementation, any one of the plate-like structures is presented as a disk-like structure; adjacent two plate-like structures rotate relative to each other under the drive of an external force.

[0013] Beneficial effects: By designing each layer of the separation baffle as a disc-shaped structure, sludge can be evenly distributed during rotation, preventing excessive accumulation of sludge in any one area. This contributes to achieving uniform screening and improving screening efficiency. Simultaneously, by driving the relative rotation of adjacent layers of the plate structure with external force, the connectivity between the through holes in adjacent layers can be easily adjusted, allowing operators to make timely adjustments as needed, thus improving the flexibility and adaptability of the sludge treatment device.

[0014] In one optional embodiment, the separation baffle is spaced apart from the screening component; the sludge treatment device further includes a flushing component, the flushing end of which is located between the screening component and the separation baffle, and the flushing direction of the flushing end of the flushing component is toward the vibrating screening chamber.

[0015] Beneficial effects: By adding a flushing component, with its flushing end located between the separation baffle and the screening chamber, and the flushing direction facing the vibrating screening chamber, sludge particles adhering to the screening components and separation baffle can be effectively flushed away. This prevents the screening components from clogging due to sludge accumulation, thereby extending the maintenance cycle and reducing maintenance costs. Simultaneously, it also helps to break down colloidal structures such as agglomerates in the sludge, improving the sludge dewatering effect.

[0016] In one alternative embodiment, the ultrasound assembly includes an ultrasound generator mounted on the inner wall of the ultrasound chamber.

[0017] Beneficial effects: By installing the ultrasonic generator on the inner wall of the ultrasonic chamber, ultrasonic energy is ensured to be directly and efficiently transmitted to the sludge and water in the chamber, reducing energy loss during transmission, improving the efficiency of ultrasonic treatment, and effectively destroying the colloidal structure and agglomerates in the sludge, promoting the dispersion and dewatering of sludge particles.

[0018] In one alternative embodiment, multiple ultrasonic generators are provided, and the multiple ultrasonic generators are arranged in an array.

[0019] Beneficial effects: By equipping multiple ultrasonic generators and arranging them in an array, the distribution of the ultrasonic field is optimized through the rational arrangement of the number and position of the ultrasonic generators. This allows the ultrasonic energy to act evenly on the sludge, improving the sludge dispersion effect and dewatering efficiency. It also helps to shorten the sludge treatment time and increase the treatment capacity and production capacity of the ditch sludge treatment device.

[0020] In one optional embodiment, the ultrasonic chamber is further provided with a water inlet located near the vibrating screening chamber and a water outlet located away from the vibrating screening chamber, and the water outlet is located on the side of the first discharge port near the vibrating screening chamber.

[0021] Beneficial effects: By providing an inlet in the ultrasonic chamber near the vibrating screening chamber, the liquid medium can be increased during the ultrasonic process. By providing an outlet in the ultrasonic chamber away from the vibrating screening chamber and placing the outlet on the side of the first discharge port near the vibrating screening chamber, it is convenient to discharge the liquid obtained after natural sedimentation through the outlet in a timely manner, and to facilitate the discharge of the solid material obtained after natural sedimentation through the first discharge port.

[0022] In one optional embodiment, the sludge treatment device further includes a microbubble nozzle, which is connected to the outlet of a microbubble generator and is installed in the ultrasonic chamber.

[0023] Beneficial effects: By adding a microbubble nozzle to the ultrasonic chamber and connecting the microbubble nozzle to the outlet of the microbubble generator, the microbubble nozzle can release microbubbles in the ultrasonic chamber. Due to the buoyancy of the microbubbles and the cavitation effect under the action of the ultrasonic field, strong shock waves and microjets are generated. When these microbubbles penetrate into the particles of sludge, they can efficiently destroy the colloidal structure and agglomerates between the particles, promote the separation between particles, and improve the dewatering effect of sludge.

[0024] In one optional embodiment, the vibrating screening chamber is further provided with a second discharge port, which is located on the side of the screening component near the vibrating screening chamber.

[0025] Beneficial effects: By arranging the second discharge port in the vibrating screen chamber on the side of the screening piece close to the vibrating screen chamber, larger materials separated after vibrating screening can be discharged smoothly, reducing the retention time of larger materials in the screening piece, avoiding accumulation and blockage in the screening piece, and improving the treatment efficiency of sludge. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the specific embodiments of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 A simplified front sectional view of the sludge treatment device for drainage ditches provided in this embodiment of the utility model;

[0028] Figure 2 A partially enlarged schematic diagram of the adjacent two plate-like structures in the separation partition of the sludge treatment device for drainage ditches provided in this embodiment of the utility model.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Shell; 101. Vibrating screening chamber; 102. Ultrasonic chamber; 103. Feed inlet; 104. First discharge outlet; 105. Water inlet; 106. Water outlet; 107. Second discharge outlet;

[0031] 2. Vibration assembly; 201. Screening component; 202. Vibration motor;

[0032] 301. Ultrasonic generator;

[0033] 4. Separating partition; 401. First through hole; 402. First solid part; 403. Second through hole; 404. Second solid part;

[0034] 5. Flushing parts;

[0035] 6. Microbubble nozzle. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0037] Sewage sludge is formed when large particles of suspended solids contained in sewage inside urban pipe networks settle under gravity during normal operation of the pipe network, gradually forming pipe network sediments.

[0038] The composition of sewage sludge in my country is quite unique, mainly consisting of inorganic substances such as SiO2, CaO, and Al2O3, mixed with a large amount of sand, gravel, organic matter, and domestic waste. After screening, the inorganic components can be recycled for low-grade building materials, such as sintered bricks, non-sintered bricks, permeable bricks, and ceramsite, or used as aggregate for silicate products, and for backfilling pipeline foundations and trenches, thus achieving resource reuse.

[0039] However, current domestic sewage sludge treatment technology mainly relies on imported processes and equipment. Due to the widespread existence of interlocking and combined sewer systems in urban pipe networks, the composition of sewage sludge is quite complex. For example, biofilms and organic matter encapsulating gravel are prominent features in sewage sludge, resulting in limited treatment effectiveness.

[0040] Therefore, this application integrates functions such as vibrating screening and ultrasonication to achieve efficient treatment of sludge from drainage ditches.

[0041] The following is combined Figure 1 and Figure 2 The following describes embodiments of the present invention.

[0042] According to an embodiment of the present invention, a sludge treatment device for drainage ditches is provided, comprising a housing 1, a vibration component 2, and an ultrasonic component.

[0043] Specifically, the housing 1 has a vibrating screening chamber 101 and an ultrasonic chamber 102 arranged at intervals and connected to each other. The vibrating screening chamber 101 has a feed inlet 103 at the end away from the ultrasonic chamber 102, and the ultrasonic chamber 102 has a first discharge outlet 104 at the end away from the vibrating screening chamber 101. The vibration assembly 2 has a screening end and a vibration end. The screening end is located inside the vibrating screening chamber 101, and the vibration end acts on the screening end to perform vibration screening treatment on the sludge entering the vibrating screening chamber 101. The ultrasonic assembly is installed in the ultrasonic chamber 102.

[0044] This configuration, with a screening end inside the vibrating screening chamber 101 within the housing 1, allows for the vibration screening of sludge in the drainage ditch. The vibration end acting on the screening end enhances the relative movement between larger particles and waste materials within the sludge, causing larger particles to separate from smaller particles and liquid, thus improving screening efficiency. This facilitates subsequent processing of the treated sludge. Furthermore, by connecting the ultrasonic chamber 102 and the vibrating screening chamber 101, the screened sludge can enter the ultrasonic chamber 102 and be subjected to ultrasonic cavitation, microjets, and mechanical effects, disrupting colloidal and aggregate structures and promoting the complete separation of water and fine matter in the sludge. This enhances dewatering efficiency and further improves the efficiency of sludge treatment.

[0045] In other words, the sludge treatment device in this structure integrates vibrating screening and ultrasonic treatment, ensuring that the sludge is treated efficiently within the device, thereby reducing operating costs.

[0046] In one embodiment, the vibration assembly 2 includes a screening component 201 and a vibration motor 202. The screening component 201 is installed between the vibration screening chamber 101 and the ultrasonic chamber 102 as the screening end of the vibration assembly 2. The driving end of the vibration motor 202 is connected to the screening component 201 as the vibration end of the vibration assembly 2, and the driving end of the vibration motor 202 is used to drive the screening component 201 to vibrate.

[0047] This configuration, by using the drive end of the vibration motor 202 as the vibration end and directly connecting it to the screening element 201 as the screening end, ensures that the vibration energy is efficiently and directly transmitted to the screening element 201, reducing energy loss during transmission. This allows the screening element 201 to generate stable and strong vibrations, better separating solid particles from liquid in the sludge, achieving efficient screening, and thus effectively improving the efficiency of sludge screening.

[0048] It can be noted that, in order to improve the uniformity of the vibration process of the screening component 201, multiple vibration motors 202 are provided, such as two or more.

[0049] Meanwhile, multiple vibrating motors 202 can achieve resonance at the same frequency, thereby enhancing the screening efficiency.

[0050] Furthermore, a control panel is also provided. At this time, the control panel is electrically connected to the electrical connection terminal of the vibration motor 202 as a control terminal, and is used to control the vibration frequency and vibration time of the vibration motor 202.

[0051] In one embodiment, the sludge treatment device further includes a separation baffle 4, which is installed on the side of the screening component 201 near the ultrasonic chamber 102. The separation baffle 4 is composed of at least two stacked plate-like structures.

[0052] In the two adjacent plate-like structures, one plate-like structure includes a first through hole 401 and a first solid 402. The first through hole 401 is provided in multiple ways, and the first solid 402 is between two adjacent first through holes 401. The other plate-like structure includes a second through hole 403 and a second solid 404. The second through hole 403 is provided in multiple ways, and the second solid 404 is between two adjacent second through holes 403. The two adjacent plate-like structures are in an open state where the first through hole 401 and the second through hole 403 are connected, and in a closed state where the solid of the plate-like structure near the ultrasonic chamber 102 blocks the through hole of the plate-like structure near the vibrating screening chamber 101. The two adjacent plate-like structures can move relative to each other under the drive of external force, so that the two adjacent plate-like structures can switch between the open state and the closed state.

[0053] This configuration, through the separation partition 4, allows for relative movement between adjacent plate-like structures driven by external force, thus switching between an open and closed state. Specifically, in the open state, the first through hole 401 and the second through hole 403 are connected, allowing the sludge and liquid obtained after vibrating screening to pass smoothly through the separation partition 4 and enter the ultrasonic chamber 102 for ultrasonic treatment. In the closed state, the solid part of the plate-like structure near the ultrasonic chamber 102 blocks the through holes of the plate-like structure near the vibrating screening chamber 101, thereby restricting or preventing the passage of sludge and liquid, allowing the sludge to undergo more thorough screening within the vibrating screening chamber 101.

[0054] That is, by switching the separation baffle 4 between open and closed states, larger substances can be initially screened out, while smaller substances such as particles and agglomerates can enter the ultrasonic chamber 102 through the separation baffle 4. Within the ultrasonic chamber 102, the cavitation and microjets of ultrasound further break down the fine particles and agglomerates in the sludge, improving the dewatering effect and separation efficiency. This completes the sludge classification process, resulting in purer sludge that is easier for subsequent processing.

[0055] It can be noted that during the vibrating screening process, the separation baffle 4 is in the open state.

[0056] In one embodiment, any plate-like structure is presented as a disk-like structure; adjacent plate-like structures rotate relative to each other under the drive of an external force.

[0057] This configuration, by making each layer of the separation baffle 4 a disc-shaped structure, allows for the even distribution of sludge during rotation, preventing excessive accumulation of sludge in any one area. This contributes to a uniform screening effect and improves screening efficiency. Simultaneously, by driving the relative rotation of adjacent layers of the plate structure with external force, the connectivity between the through holes in adjacent layers can be easily adjusted, allowing operators to make timely adjustments as needed, thus enhancing the flexibility and adaptability of the sludge treatment device.

[0058] That is, such as Figure 2 From the perspective shown, the first through hole 401 and the second through hole 403 are offset in the circumferential direction of the central axis of the separation partition 4, and the radial dimensions of the first through hole 401 and the second through hole 403 from the central axis of the separation partition 4 are the same.

[0059] Of course, when any plate structure is a square plate structure, there is a pair of opposite ends in each plate structure that are inserted into the shell 1 and extend to the outside. When in use, the first through hole 401 and the second through hole 403 can be connected or misaligned by pulling the plate structure.

[0060] That is, such as Figure 2 From the perspective shown, two adjacent plate-like structures move horizontally until they connect or become misaligned.

[0061] It can be explained that the plate-like structure inside the separation partition 4 can be rotated directly by human power.

[0062] At this point, each plate-like structure is fixedly connected via a pivot.

[0063] In one embodiment, the separation baffle 4 is spaced apart from the screening component 201; the sludge treatment device further includes a flushing component 5, the flushing end of which is located between the screening component 201 and the separation baffle 4, and the flushing direction of the flushing end of the flushing component 5 is toward the vibrating screening chamber 101.

[0064] With this configuration, by adding a flushing component 5, the flushing end of the flushing component 5 is located between the separation baffle 4 and the screening component, and the flushing direction of the flushing end of the flushing component 5 is towards the vibrating screening chamber 101. This can effectively flush away the sludge particles attached to the screening component 201 and the separation baffle 4, prevent the screening component 201 from being blocked by sludge accumulation, thereby extending the maintenance cycle and reducing maintenance costs.

[0065] At the same time, it also helps to break down colloidal structures such as aggregates in sludge, thereby improving the dewatering effect of sludge.

[0066] It should be noted that the high-pressure flushing medium inside the flushing component 5 is preferably water.

[0067] It should be noted that there is no specific limit to the number of flushing components 5. There can be one, two or more.

[0068] For example, there are two or more flushing components 5, which are arranged in an array.

[0069] Meanwhile, it can be explained that when rinsing the material adhering to the screen 201, the separation baffle 4 is in a closed state, so that the material adhering to the screen 201 can be remixed with water and discharged from the second discharge port 107.

[0070] Preferably, when both the vibrating screening chamber 101 and the ultrasonic chamber 102 are rotating chambers, two or more flushing elements 5 are arranged in an array along the axial direction and / or circumferential direction of the central axis of the rotating chamber.

[0071] In one embodiment, the ultrasonic component includes an ultrasonic generator 301 mounted on the inner wall of the ultrasonic chamber 102.

[0072] This configuration, by installing the ultrasonic generator 301 on the inner wall of the ultrasonic chamber 102, ensures that ultrasonic energy is directly and efficiently transmitted to the sludge and water in the chamber, reducing energy loss during transmission, improving the efficiency of ultrasonic treatment, and effectively destroying the colloidal structure and aggregates in the sludge, promoting the dispersion and dewatering of sludge particles.

[0073] In one embodiment, multiple ultrasonic generators 301 are provided, and the multiple ultrasonic generators 301 are arranged in an array.

[0074] This configuration, by equipping multiple ultrasonic generators 301 and arranging them in an array, optimizes the distribution of the ultrasonic field by rationally arranging the number and position of the ultrasonic generators 301. This allows the ultrasonic energy to act evenly on the sludge, improving the sludge dispersion effect and dewatering efficiency, which helps to shorten the sludge treatment time and increase the treatment capacity and production capacity of the ditch sludge treatment device.

[0075] It should be noted that the form of the ultrasonic generator 301 array is not specifically limited, and can be determined as needed based on the actual structure of the vibrating screening chamber 101 and the ultrasonic chamber 102.

[0076] For example, when the actual structures of the vibrating screening chamber 101 and the ultrasonic chamber 102 are both rotary chambers, two or more ultrasonic generators 301 are arranged in an array along the axial direction and / or circumferential direction of the central axis of the rotary chamber.

[0077] Preferably, when there are twelve ultrasonic generators 301, they are divided into four groups, with three in each group. In this case, the four groups of ultrasonic generators 301 are arranged at intervals in the circumferential direction of the central axis of the rotating body-shaped chamber, and the three ultrasonic generators 301 in each group are arranged at intervals in the axial direction of the central axis of the rotating body-shaped chamber.

[0078] In one embodiment, the ultrasonic chamber 102 is further provided with an inlet 105 located near the vibrating screening chamber 101 and an outlet 106 located away from the vibrating screening chamber 101, and the outlet 106 is located on the side of the first discharge port 104 near the vibrating screening chamber 101.

[0079] With this configuration, an inlet 105 is provided in the ultrasonic chamber 102 near the vibrating screening chamber 101, which can provide liquid medium for the ultrasonic process. An outlet 106 is provided in the ultrasonic chamber 102 away from the vibrating screening chamber 101, and the outlet 106 is located on the side of the first discharge port 104 near the vibrating screening chamber 101. This facilitates the timely discharge of the liquid obtained after natural sedimentation through the outlet 106, and also facilitates the discharge of the solid material obtained after natural sedimentation through the first discharge port 104.

[0080] It can be explained that liquids, such as water, or chemical agents, such as hydrogen peroxide with oxidizing capabilities, can be injected at the inlet 105. Through chemical reactions, organic matter can be decomposed, for example, the cell walls of colloidal and aggregate structures can be broken. In synergistic reaction with ultrasound, organic matter can be further removed.

[0081] In one embodiment, the sludge treatment device for drainage ditches further includes a microbubble nozzle 6, which is connected to the outlet of a microbubble generator and is installed inside the ultrasonic chamber 102.

[0082] With this configuration, by adding a microbubble nozzle 6 inside the ultrasonic chamber 102 and connecting the microbubble nozzle 6 to the outlet of the microbubble generator, the microbubble nozzle 6 can release microbubbles inside the ultrasonic chamber 102. Due to the buoyancy of the microbubbles and the cavitation effect that occurs under the action of the ultrasonic field, strong shock waves and microjets are generated. When these microbubbles penetrate into the particles of sludge, they can efficiently destroy the colloidal structure and aggregates between the particles, promote the separation between the particles, and improve the dewatering effect of the sludge.

[0083] It can be noted that there are multiple microbubble nozzles 6, and the multiple microbubble nozzles 6 are arranged in an array.

[0084] Similarly, when the actual structures of the vibrating screening chamber 101 and the ultrasonic chamber 102 are both rotating chambers, multiple microbubble nozzles 6 are arranged in an array along the axial direction and / or circumferential direction of the central axis of the rotating chamber.

[0085] Preferably, when there are four microbubble nozzles 6, they are divided into four groups, with one nozzle in each group. In this case, the four groups of microbubble nozzles 6 are arranged at intervals in the circumferential direction along the central axis of the rotating body-shaped chamber.

[0086] Furthermore, the microbubble nozzle 6 is positioned close to the first discharge port 104.

[0087] It should be noted that a conventional microbubble generator was selected, and its quantity and model will not be elaborated here.

[0088] In one embodiment, a second discharge port 107 is also provided at the vibrating screening chamber 101, and the second discharge port 107 is located on the side of the screening component 201 near the vibrating screening chamber 101.

[0089] This configuration, by placing the second discharge port 107 at the vibrating screening chamber 101 on the side of the screening element 201 close to the vibrating screening chamber 101, allows larger materials separated after vibrating screening to be discharged smoothly, reducing the time that larger materials remain at the screening element 201, avoiding accumulation and blockage in the screening element 201, and improving the efficiency of sludge treatment.

[0090] It can be noted that in the above embodiments, the first discharge port 104, the water inlet 105, the water outlet 106, and the second discharge port 107 are all connected to pipes and use a pump body to facilitate the rapid discharge of the corresponding materials.

[0091] The sludge treatment device for drainage ditches provided in the above embodiments first removes larger materials through the screening component 201 when treating drainage sludge. The remaining material enters the ultrasonic chamber 102 through the separation partition 4 and sinks under gravity. It is then treated by a combination of physical ultrasonic cavitation and the impact and adsorption effects of microbubbles, which effectively inactivates and removes bacteria and peels off the colloidal and aggregate structures attached to the sand and gravel. It makes full use of its physical advantages to achieve the effect of harmless treatment of drainage sludge.

[0092] Specifically, the sludge treatment device mainly consists of a vibration assembly 2, an ultrasonic assembly, a flushing component 5, and a microbubble nozzle 6. A separation baffle 4 separates the vibrating screening chamber 101 from the ultrasonic chamber 102. Larger materials are screened out in the vibrating screening chamber 101 and discharged through the second outlet 107. If materials adhere to the screening component 201, the flushing component 5 is activated to backwash the screening component 201 after the separation baffle 4 is closed. Simultaneously, smaller materials, such as medium-coarse sand and other small-diameter particles, enter the ultrasonic chamber 102 through the separation baffle 4. Liquid is injected into the ultrasonic chamber 102 through the inlet 105, ensuring sufficient contact between the small-diameter particles and the liquid. The ultrasonic generator 301 and the microbubble nozzle 6 are then activated to treat the screened products for a period of time, allowing them to naturally settle to the bottom and be discharged through the outlet 106. The material that has settled to the bottom is discharged through the first outlet 104, completing the harmless treatment process.

[0093] In addition, the material discharged through the first discharge port 104 can be used for the recycling of low-grade building materials, such as the production of sintered bricks, non-sintered bricks, permeable bricks and ceramsite, or as aggregate for silicate products, and for backfilling of pipeline foundations and trenches.

[0094] Therefore, the sludge treatment device for drainage ditches can achieve simultaneous coarse screening and harmless treatment, upstream and downstream collaboration, and high-efficiency treatment, solving the problem of limited treatment effect of existing sludge treatment devices during the screening process.

[0095] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A trench sludge treatment apparatus, characterized by comprising: include: The housing (1) has a vibrating screening chamber (101) and an ultrasonic chamber (102) arranged at intervals and connected inside the housing (1). The vibrating screening chamber (101) has a feed inlet (103) at one end away from the ultrasonic chamber (102), and the ultrasonic chamber (102) has a first discharge outlet (104) at one end away from the vibrating screening chamber (101). Vibration assembly (2), the vibration assembly (2) is provided with a screening end and a vibration end, the screening end is located inside the vibration screening chamber (101), the vibration end acts on the screening end to perform vibration screening treatment on the sludge entering the vibration screening chamber (101); An ultrasound assembly, which is installed within the ultrasound chamber (102); The vibration assembly (2) includes: A screening component (201) is installed between the vibrating screening chamber (101) and the ultrasonic chamber (102) as the screening end of the vibration assembly (2); Vibration motor (202), the driving end of the vibration motor (202) is connected to the screening component (201) as the vibration end of the vibration assembly (2), and the driving end of the vibration motor (202) is used to drive the screening component (201) to vibrate; A separation partition (4) is installed on the side of the screening component (201) near the ultrasonic chamber (102). The separation partition (4) is composed of at least two layers of plate-like structures stacked together. In the two adjacent layers of plate-like structures, one layer of plate-like structure includes a first through hole (401) and a first solid (402). The first through hole (401) is provided in multiple ways, and the first solid (402) is between two adjacent first through holes (401). The other layer of plate-like structure includes a second through hole (403) and a second solid (404). The second through hole (403) is provided in multiple ways, and the second solid (404) is between two adjacent second through holes (403). Among them, the two adjacent plate structures have an open state in which the first through hole (401) and the second through hole (403) are connected, and a closed state in which the solid of the plate structure near the ultrasonic chamber (102) blocks the through hole of the plate structure near the vibrating screening chamber (101). The two adjacent plate structures move relative to each other under the drive of external force so that the two adjacent plate structures can switch between the open state and the closed state. The ultrasound component includes: An ultrasonic generator (301) is installed on the inner wall of the ultrasonic chamber (102).

2. The sludge treatment device for drainage ditches according to claim 1, characterized in that, Any layer of plate-like structure presents a disk-like structure; Two adjacent plate-like structures rotate relative to each other under the drive of an external force.

3. The sludge treatment device for drainage ditches according to claim 1, characterized in that, The separation partition (4) is spaced apart from the screening component (201); The sludge treatment device for drainage ditches also includes: The rinsing component (5) has its rinsing end located between the screening component (201) and the separation partition (4), and the rinsing direction of the rinsing end of the rinsing component (5) is toward the vibrating screening chamber (101).

4. The sludge treatment device for drainage ditches according to any one of claims 1-3, characterized in that, Multiple ultrasonic generators (301) are provided, and the multiple ultrasonic generators (301) are arranged in an array.

5. The sludge treatment device for drainage ditches according to any one of claims 1-3, characterized in that, The ultrasonic chamber (102) is also provided with an inlet (105) near the vibrating screening chamber (101) and an outlet (106) away from the vibrating screening chamber (101), and the outlet (106) is located on the side of the first discharge port (104) near the vibrating screening chamber (101).

6. The trench sludge treatment device according to any one of claims 1 to 3, characterized in that Also includes: The microbubble nozzle (6) is connected to the outlet of the microbubble generator and is installed inside the ultrasonic chamber (102).

7. The sludge treatment device for drainage ditches according to claim 2 or 3, characterized in that, The vibrating screening chamber (101) is also provided with a second discharge port (107), which is located on the side of the screening component (201) near the vibrating screening chamber (101).

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