Sludge treatment tank capable of crushing and preventing sludge from sinking to bottom
By combining multi-directional crushing spiral blades and sludge scraping components, the problem of sludge deposition and low sludge scraping efficiency in traditional sludge treatment tanks is solved, achieving efficient sludge crushing and cleaning, and improving the operational stability and ease of use of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU ZAOPIN ST CO LTD
- Filing Date
- 2025-05-08
- Publication Date
- 2026-05-19
AI Technical Summary
Traditional sludge treatment ponds are inefficient in crushing and scraping, cannot adapt to diverse sludge characteristics, sludge is prone to sedimentation and aggregation, the simple design of the scraper blades results in many dead corners, and there are limited measures to prevent sludge from settling to the bottom.
It adopts a combination of multi-rotational crushing spiral blades with different spacing, combined with a sludge scraping component and a vibrating unit, and achieves automated operation through a control switch. The flexible cooperation between the crushing component and the sludge scraping component ensures uniform crushing and efficient cleaning of sludge.
It significantly improves sludge crushing and cleaning efficiency, avoids sludge deposition and clumping, ensures uniform crushing and thorough cleaning of sludge, reduces the difficulty of subsequent treatment, and improves the stability and ease of operation of the equipment.
Smart Images

Figure CN224258463U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of environmental protection equipment technology, specifically to a sludge treatment tank that can crush sludge and prevent it from settling to the bottom. Background Technology
[0002] With the rapid development of industrial production and the acceleration of urbanization, the amount of sewage sludge produced is increasing daily. Sludge contains a large number of harmful substances, and if not properly treated, it will cause serious environmental pollution. Among various sludge treatment equipment, sludge treatment tanks are one of the commonly used key pieces of equipment.
[0003] Traditional sludge treatment ponds suffer from numerous drawbacks in actual operation. From the perspective of the crushing stage, conventional crushing devices have a simple structure, with fixed spacing and width of the crushing components and a lack of variation in rotation direction, making them ill-suited to the diverse characteristics of sludge. This results in incomplete sludge crushing, with large amounts of incompletely crushed sludge gradually accumulating and agglomerating at the bottom of the treatment pond, forming large lumps of sludge. Common crushing devices often use single-structure crushing components with fixed spacing and width and a single rotation direction, making it difficult to comprehensively and effectively crush sludge of different properties and states. This leads to sludge easily accumulating and agglomerating into large lumps at the bottom of the treatment pond, not only occupying a large amount of space but also increasing the difficulty of subsequent cleaning and treatment, severely impacting treatment efficiency. The sludge scraping effect is also unsatisfactory. Traditional scraper designs are relatively simple, usually flat and straight. When scraping sludge, they cannot conform well to the complex shape of the treatment pond bottom, especially for treatment ponds with curved bottoms, easily creating scraping dead zones and resulting in a large amount of sludge residue. Furthermore, the scraper blades lack a special reinforced structure, making it difficult to efficiently scrape and remove highly adhesive sludge from the bottom of the tank, resulting in low cleaning efficiency. Measures to prevent sludge settling are limited. Traditional treatment tanks mostly rely on simple stirring devices to delay sludge settling, but this method is ineffective for long-accumulated sludge and cannot fundamentally solve the problem of sludge compaction and adhesion to the tank bottom. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model discloses a sludge treatment tank that can effectively crush, scrape, and prevent sludge from settling to the bottom.
[0005] This utility model discloses a sludge treatment tank capable of crushing and preventing sludge from settling at the bottom. It includes a treatment tank body, which comprises a built-in sewage treatment chamber, an upper opening, and a side-through discharge pipe. The bottom of the treatment tank body is arc-shaped. A lifting assembly is located at both ends inside the treatment tank body, with a main rotating component and a secondary rotating component respectively mounted on each end. The main rotating component is mounted on the secondary rotating component. A crushing assembly is located inside the sewage treatment chamber, comprising a crushing rod connected to the main rotating components at both ends and a crushing spiral blade mounted on the crushing rod. A sludge scraping assembly is located inside the sewage treatment chamber, comprising a scraping rod connected to the secondary rotating components at both ends and a scraping plate mounted on the scraping rod. The shape of the scraping assembly corresponds to the arc shape of the bottom of the treatment tank. A control switch is located on the outer side of the treatment tank body and is electrically connected to the lifting assembly, crushing assembly, and sludge scraping assembly.
[0006] Furthermore, the crushing spiral blades include several, with different spacing and widths between them, and the crushing spiral blades include several outwardly protruding crushing parts.
[0007] Furthermore, the directions of rotation of the various crushing spiral blades differ, with at least three crushing spiral blades changing direction once.
[0008] Furthermore, the broken component is one of the following: nail, cutter, hammer-shaped protrusion, wedge-shaped block, and spherical protrusion.
[0009] Furthermore, the end of the scraper blade away from the scraper rod is provided with several protruding scraping parts, and the scraping parts and the end of the scraper blade away from the scraper rod are sharpened.
[0010] Furthermore, several vibration sections are provided on the side of the treatment tank body, and these vibration sections are electrically connected to a control switch.
[0011] Furthermore, the crushing assembly includes at least two, and the crushing spiral blades of the at least two crushing assemblies mesh with each other.
[0012] Beneficial effects:
[0013] In terms of sludge crushing, the sludge treatment tank of this application utilizes a main rotating component that drives a connected crushing rod, causing the crushing spiral blades mounted on the crushing rod to rotate synchronously. A lifting component moves the crushing and scraping components up and down, allowing them to be moved upwards after crushing for easy cleaning of the tank bottom. The scraping component, with its inwardly concave arc shape perfectly corresponding to the arc shape of the tank bottom, effectively carries sludge from the tank bottom to the top under the drive of the secondary rotating component. This cyclical operation achieves efficient sludge cleaning. For ease of operation, a control switch located on the outside of the treatment tank body is electrically connected to the lifting, crushing, and scraping components. Users can conveniently control all components uniformly through this switch, easily achieving automated operation and significantly improving overall work efficiency. The unique design of the crushing spiral blades in this application, with varying spacing and width and flexible rotation direction, combined with diverse crushing components and the interlocking spiral blade structure, enables comprehensive and deep crushing of the sludge, effectively preventing sludge deposition and clumping at the tank bottom, significantly improving crushing efficiency and uniformity, and reducing the difficulty of subsequent treatment. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of a sludge treatment tank in one embodiment of this application.
[0015] Figure 2 This is a cross-sectional structural diagram of a sludge treatment tank in an embodiment of this application.
[0016] Figure 3 for Figure 2 Enlarged diagram of point A in the middle.
[0017] Figure 4 This is a schematic diagram of another structure of the sludge treatment tank in the embodiments of this application.
[0018] Figure 5 This is a schematic diagram of another cross-sectional structure of the sludge treatment tank in the embodiments of this application.
[0019] In the figure: sludge treatment tank 100, treatment tank body 11, discharge pipe 111, vibrating part 112, lifting assembly 12, main rotating part 121, auxiliary rotating part 122, crushing assembly 13, crushing rod 131, crushing spiral blade 132, crushing part 133, sludge scraping assembly 14, sludge scraping rod 141, sludge scraping plate 142, sludge scraping part 143, control switch 15. Detailed Implementation
[0020] To enable those skilled in the art to better understand the present invention, the technical solutions in the specific embodiments of the present invention will be clearly and completely described below.
[0021] This application discloses a sludge treatment tank 100 capable of breaking down and preventing sludge from settling to the bottom, such as... Figure 1 As shown, it includes a treatment tank body 11, which includes a built-in sewage treatment chamber, an upper opening, and a side-through discharge pipe 111. The bottom of the treatment tank body 11 is arc-shaped. Lifting assemblies 12 are located at both ends inside the treatment tank body 11. Each end of the lifting assembly 12 is equipped with a main rotating component 121 and a secondary rotating component 122, with the main rotating component 121 mounted on the secondary rotating component 122. Figure 2 and Figure 3 As shown, the crushing assembly 13 is disposed within the wastewater treatment chamber. The crushing assembly 13 includes a crushing rod 131 connected to the main rotating members 121 at both ends and a crushing spiral blade 132 disposed on the crushing rod 131. During use, the lifting assembly 12 moves the main rotating members 121 up and down to a suitable position. Then, the main rotating members 121 rotate, causing the crushing rod 131 and the crushing spiral blade 132 to rotate. The rotation of the crushing spiral blade 132 crushes the sludge, preventing it from accumulating into large, difficult-to-clean clumps at the bottom of the treatment tank. After crushing, the lifting assembly 12 is adjusted to move the crushing assembly 13 upwards, making it easier for the user to clean the bottom of the treatment tank. The crushed sludge prevents clogging of the outlet during subsequent treatment. Figure 2As shown, the sludge scraping assembly 14 is installed inside the wastewater treatment chamber. The sludge scraping assembly 14 includes a scraper rod 141 connected to the auxiliary rotating parts 122 at both ends and a scraper plate 142 installed on the scraper rod 141. The shape of the sludge scraping assembly 14 corresponds to the arc shape of the bottom of the treatment tank. After the crushing assembly 13 has crushed the sludge at the bottom of the treatment tank, the lifting assembly 12 drives the sludge scraping assembly 14 and the crushing assembly 13 to a suitable position. Then, the auxiliary rotating parts 122 are started to rotate, driving the sludge scraping assembly 14 and the crushing assembly 13 to rotate. At this time, the sludge at the bottom of the treatment tank is carried to the top of the treatment tank by the sludge scraping assembly 14. The rotation of the auxiliary rotating parts 122 is stopped and the sludge carried up by the sludge scraping assembly 14 is cleaned. The above steps are repeated until the sludge is cleaned. The shape of the sludge scraping assembly 14 is an inwardly concave arc shape. The inwardly concave arc shape of the sludge scraping assembly 14 makes it easy to carry the sludge out from the bottom of the treatment tank. The sludge scraped off by the sludge scraping assembly 14 can also be directly discharged from the discharge pipe 111. A control switch 15 is located on the outer side of the treatment tank body 11 and is electrically connected to the lifting assembly 12, the crushing assembly 13, and the sludge scraping assembly 14. In terms of sludge crushing, the main rotating component 121 drives the crushing rod 131 connected to it, causing the crushing spiral blades 132 mounted on the crushing rod 131 to rotate synchronously. The lifting assembly 12 can drive the crushing assembly 13 and the sludge scraping assembly 14 to move up and down. After crushing, the components can be moved upwards for easy cleaning of the tank bottom. The sludge scraping assembly 14 has an inwardly concave arc shape, perfectly corresponding to the arc shape of the bottom of the treatment tank. Driven by the auxiliary rotating component 122, it can effectively carry the sludge from the bottom of the tank to the top of the treatment tank. Through this cyclical operation, efficient sludge cleaning can be achieved. In terms of ease of operation, the control switch 15 located on the outside of the treatment tank body 11 is electrically connected to the lifting assembly 12, the crushing assembly 13 and the sludge scraping assembly 14. Users can conveniently control each component in a unified manner through this control switch 15, easily achieve automated operation, and significantly improve overall work efficiency.
[0022] In one implementation, the crushing spiral blades 132 comprise a plurality of blades, each with varying spacing and width. Each spiral blade 132 includes a plurality of outwardly protruding crushing elements 133. The crushing assembly 13 of this application uses a combination of crushing spiral blades 132 with different spacing and widths, allowing the sludge to be subjected to varying forces and frequencies during the crushing process. This adapts to sludge lumps of different sizes and properties, improving the comprehensiveness and thoroughness of the crushing. Simultaneously, the outwardly protruding crushing elements 133 on the spiral blades can further tear, cut, or strike the sludge, effectively breaking down lumps and debris into smaller particles, thereby better preventing sludge deposition and aggregation. The coordinated use of crushing spiral blades 132 with different spacings and widths ensures more uniform crushing of the sludge in the treatment tank, avoiding incomplete crushing in certain areas. This guarantees the stability and consistency of the entire treatment process, improving the quality of sludge treatment.
[0023] In one implementation, the crushing spiral blades 132 rotate in different directions, with at least three blades changing direction once. The different rotation directions of the crushing spiral blades 132 can cooperate to subject the sludge to forces from multiple directions. When the sludge is agitated in the treatment tank, these multi-directional forces more effectively disperse and crush the sludge, preventing the formation of vortices due to a single-direction rotational force, which would result in some sludge not being fully crushed, thus improving the uniformity and thoroughness of crushing. If all the crushing spiral blades 132 rotate in the same direction, the sludge may become entangled on the crushing spiral blades 132 or the crushing rod 131, affecting the crushing effect and the normal operation of the equipment. Changing the rotation direction disrupts the sludge's movement trajectory, reducing the possibility of sludge entanglement and enabling the equipment to operate continuously and stably. During rotation, the crushing spiral blades 132 with different rotation directions create complex flow patterns in the sludge within the treatment tank, which helps to promote thorough mixing of sludge from different locations and with different properties. It can improve the crushing effect and also allow the subsequent sludge treatment agents to come into more uniform contact with the sludge, thereby improving the treatment effect.
[0024] In one implementation, the crushing component 133 is one of a nail, a cutter, a hammer-shaped protrusion, a wedge-shaped block, and a spherical protrusion. Any of the above-mentioned forms of the crushing component 133 can increase the crushing effect of the crushing spiral blade 132 on the sludge, thereby improving the degree of sludge crushing.
[0025] In one implementation, the scraper blade 142 has several protruding scraping portions 143 at the end away from the scraper rod 141. Both the scraping portions 143 and the end of the scraper blade 142 away from the scraper rod 141 are sharply defined. The protruding scraping portions 143 increase the contact points between the scraper blade 142 and the sludge at the bottom of the pool, allowing for more thorough scraping of the sludge, leaving no corner untouched, improving the comprehensiveness of the scraping, and preventing sludge residue. The sharp design reduces the resistance when the scraper blade 142 cuts into the sludge, easily breaking down the adhesion between the sludge and the pool bottom caused by adsorption or drying, efficiently separating and removing the sludge from the pool bottom, and improving cleaning efficiency.
[0026] As one implementation method, such as Figure 4 As shown, the treatment tank body 11 has several vibration units 112 on its side, which are electrically connected to the control switch 15. When the vibration units 112 are activated, the vibrations generated can be transmitted to the bottom of the tank, effectively loosening the sludge tightly attached to the bottom. Especially for sludge that has firmly adhered to the bottom due to long-term deposition and adsorption, the vibration can break this adhesion, making it easier for the scraper 142 to scrape it off, thus improving scraping efficiency. Continuous vibration can interfere with the sludge deposition process at the bottom of the tank, preventing the sludge from forming a tightly packed, lumpy structure. This ensures that the subsequent crushing component 13 can more effectively crush the sludge, avoiding increased crushing difficulty due to sludge compaction. Since the sludge deposition varies at different locations on the bottom of the tank, the vibration units 112 can ensure that all areas of the bottom are vibrated, ensuring that the sludge in every corner is loosened evenly. Combined with the scraper 142, this achieves a more comprehensive and uniform cleaning effect, reducing cleaning dead zones.
[0027] As one implementation method, such as Figure 5As shown, the crushing assembly 13 includes at least two, and the crushing spiral blades 132 of the at least two crushing assemblies 13 mesh with each other. When the meshing spiral blades 132 rotate, they act like multiple cooperating gears, enabling more thorough crushing of the sludge. Their meshing action traps the sludge in the middle, crushing it into smaller particles through compression, shearing, and other methods. For large pieces of sludge or debris that are difficult to crush, this meshing crushing method can handle them more effectively. The meshing of the crushing spiral blades 132 of multiple crushing assemblies 13 allows the sludge to be subjected to a more uniform force in the treatment tank. Sludge in different locations can be fully contacted and processed by the crushing spiral blades 132, avoiding the uneven crushing phenomenon that may occur with a single crushing assembly 13, thus ensuring the stability and consistency of the entire sludge treatment process. The meshing motion of the crushing spiral blades 132 causes the sludge in the treatment tank to generate complex flow patterns. This flow not only helps to bring sludge from all corners of the treatment tank to the crushing area for processing, but also allows the sludge to continuously tumble and mix in the tank, further improving the crushing effect. At the same time, it is also beneficial for the subsequent collection and cleaning of sludge by the sludge scraper assembly 14.
[0028] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.
Claims
1. A sludge treatment tank capable of crushing and preventing sludge from settling, characterized in that, include: The treatment tank body includes a built-in sewage treatment chamber, an opening at the top, and a discharge pipe that runs through the side. The bottom of the treatment tank body is arc-shaped. The lifting assembly is located at both ends inside the treatment tank body. The lifting assemblies at both ends are respectively equipped with a main rotating component and a secondary rotating component, with the main rotating component mounted on the secondary rotating component. The crushing assembly is installed inside the wastewater treatment chamber. The crushing assembly includes a crushing rod connected to the main rotating parts at both ends and a crushing spiral blade installed on the crushing rod. The sludge scraping assembly is installed inside the sewage treatment chamber. The sludge scraping assembly includes a scraper rod connected to the two auxiliary rotating parts at both ends and a scraper plate installed on the scraper rod. The shape of the sludge scraping assembly corresponds to the arc shape at the bottom of the treatment tank. The control switch is located on the outside of the treatment tank body and is electrically connected to the lifting assembly, crushing assembly, and sludge scraping assembly.
2. The sludge treatment tank according to claim 1, characterized in that: The crushing spiral blades consist of several blades, with varying spacing and widths between them. Each crushing spiral blade includes several outwardly protruding crushing components.
3. A sludge treatment tank capable of crushing and preventing sludge settling as described in claim 2, characterized in that: The spiral directions of several crushing spiral blades are different, and at least three crushing spiral blades change their spiral direction once.
4. A sludge treatment tank capable of crushing and preventing sludge settling as described in claim 2, characterized in that: The broken parts are one of the following: nails, cutters, hammer-shaped protrusions, wedge-shaped blocks, and spherical protrusions.
5. A sludge treatment tank capable of crushing and preventing sludge settling as described in claim 1, characterized in that: The end of the scraper blade away from the scraper rod has several protruding scraping parts, and the scraping parts and the end of the scraper blade away from the scraper rod are sharpened.
6. A sludge treatment tank capable of crushing and preventing sludge settling as described in claim 1, characterized in that: Several vibrating elements are provided on the side of the treatment tank body, and these vibrating elements are electrically connected to a control switch.
7. A sludge treatment tank capable of crushing and preventing sludge settling as described in claim 1, characterized in that: The crushing assembly comprises at least two, and the crushing spiral blades of the at least two crushing assemblies mesh with each other.