Sludge dewatering device for sewage treatment

The servo motor-driven support rod and extrusion plate assembly achieves efficient sludge extrusion and dewatering. Combined with the scraper vertical rod and disassembly assembly, it solves the problem of low efficiency in existing sludge dewatering devices and improves the practicality and efficiency of the sludge dewatering device.

CN224062645UActive Publication Date: 2026-03-31SHENZHEN CHUANGXINYUAN ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-28
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

When existing sludge dewatering devices process sludge through drying, the water evaporates and is not utilized, resulting in reduced practicality and efficiency of the device.

Method used

The system employs a servo motor-driven support rod and extrusion plate assembly. The extrusion plate fits tightly against the inner wall of the dewatering cylinder, achieving efficient extrusion and dewatering of sludge. Water stains on the inner wall are scraped off by a vertical scraper. Combined with the quick installation and disassembly of the assembly and disassembly components, the system improves the efficiency of the device.

Benefits of technology

It improves sludge dewatering efficiency and wastewater collection efficiency, enhances the practicality and efficiency of the device, and simplifies the disassembly and assembly of the tank cover and the cleaning process of the dewatering cylinder.

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Abstract

The utility model discloses a sludge dewatering device for sewage treatment, which relates to the technical field of sewage treatment and comprises a main tank body and a dewatering component, support column legs are mounted at the bottom of the main tank body, a tank cover main body is arranged at the upper end of the main tank body, and the dewatering component is arranged in the main tank body. The dewatering assembly comprises a servo motor, a supporting rod, a mounting transverse rod, a liquid scraping vertical rod, a bearing frame, a limiting sliding groove, a limiting sliding block and an extrusion plate, the supporting rod is connected to the front end of the servo motor, the mounting transverse rod is arranged at the upper end of the exterior of the supporting rod, the liquid scraping vertical rod is mounted at the front end of the mounting transverse rod, and the bearing frame is mounted outside the supporting rod. A limiting sliding groove is formed in the front end in the bearing frame, a limiting sliding block is connected into the limiting sliding groove, and meanwhile an extrusion plate is installed outside the limiting sliding block. According to the sludge dewatering device for sewage treatment, sludge is extruded in the sludge dewatering process, so that the overall practicability of the sludge dewatering device is improved while the dewatering efficiency is improved.
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Description

Technical Field

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

[0002] Wastewater treatment refers to the process of treating wastewater using physical, chemical, and biological methods to meet specific water quality standards so that it can be discharged into natural water bodies or reused. Wastewater treatment is widely used in construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscaping, medical care, and catering, and is increasingly becoming a part of everyday life. The main purpose of wastewater treatment is to reduce water pollution and protect the environment. Through treatment, pollutants such as suspended solids, organic matter, and heavy metals can be removed from wastewater, reducing pollution to natural water bodies and protecting the health of ecosystems. Furthermore, treated wastewater can be reused, saving water resources. To improve wastewater treatment efficiency, a sludge dewatering device is needed; however, existing sludge dewatering devices still have the following shortcomings:

[0003] When existing sludge dewatering devices are in use, most of them dewater the sludge through drying or other methods. However, the water evaporates and is not used for subsequent processing, which limits the use of sludge dewatering devices and leads to reduced practicality and efficiency.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and proposed a sewage treatment sludge dewatering device. Utility Model Content

[0005] The purpose of this invention is to provide a sludge dewatering device for sewage treatment to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sewage treatment sludge dewatering device, comprising a main tank and a dewatering assembly. The main tank has supporting columns installed at its bottom and a tank cover body at its upper end. The dewatering assembly is located inside the main tank and includes a servo motor, a support rod, a mounting crossbar, a scraper rod, a receiving frame, a limiting groove, a limiting slider, and a pressing plate. The front end of the servo motor is connected to the support rod, and a mounting crossbar is installed at the upper end of the support rod. A scraper rod is installed at the front end of the mounting crossbar. A receiving frame is installed outside the support rod, and a limiting groove is formed at the front end of the receiving frame. A limiting slider is connected inside the limiting groove, and a pressing plate is installed outside the limiting slider. A disassembly assembly is located at the upper end of the main tank.

[0007] Furthermore, the mounting crossbar and the scraper vertical bar are distributed perpendicularly, and the mounting crossbar and the scraper vertical bar are fixedly connected by bolts.

[0008] Furthermore, the outer side of the scraper is horizontally distributed with the inner side of the main tank, and the outer side of the scraper is in close contact with the inner wall of the main tank.

[0009] Furthermore, the internal dimensions of the limiting groove are adapted to the external dimensions of the limiting slider, and the limiting slider is slidably connected to the receiving frame through the limiting groove.

[0010] Furthermore, the assembly / disassembly assembly includes an installation docking groove, an installation docking ring, and a docking mortise. The installation docking groove is internally connected to the installation docking ring, and the installation docking ring has a docking mortise inside.

[0011] Furthermore, the assembly and disassembly components also include a mounting tenon, a drive motor, and a dehydration cylinder, and the mounting tenon is connected inside the mating groove. The drive motor is installed at the middle of the bottom of the main tank, and the dehydration cylinder is connected to the front end of the drive motor.

[0012] Furthermore, the internal dimensions of the mounting docking groove are adapted to the external dimensions of the mounting docking ring, and the mounting docking ring is embeddedly connected to the main tank body through the mounting docking groove.

[0013] Furthermore, the internal dimensions of the mortise are adapted to the external dimensions of the tenon, and the tenon is connected to the mounting ring through the mortise.

[0014] This utility model provides a sludge dewatering device for sewage treatment, which has the following beneficial effects:

[0015] 1. This utility model, through the setting of the dewatering component, enables the servo motor at the upper end of the tank cover to drive the support rod to rotate during the use of the sludge dewatering device. This causes the receiving frame installed on the outside of the support rod to rotate inside the main tank. The squeezing plate is slidably installed on the outside of the receiving frame through the limiting slide groove and the limiting slider. The outer side of the squeezing plate is tightly fitted to the inner wall of the dewatering cylinder. The squeezing plate allows the sludge to be squeezed by the outside during the dewatering process inside the dewatering cylinder, thereby improving the dewatering efficiency. Furthermore, the squeezing plate can be replaced later to quickly scrape the sludge adhering to the inner wall of the dewatering cylinder after dewatering. The mounting crossbar is fixedly installed on the upper end of the support rod. The rotation of the mounting crossbar drives the scraping vertical bar to rotate inside the main tank, thereby scraping off the water stains adhering to the inner wall of the main tank. This improves the collection efficiency of sewage after sludge dewatering and increases the overall practicality and efficiency of the sludge dewatering device.

[0016] 2. This utility model, through the design of detachable components, enables the dewatering cylinder to rotate via a drive motor at the bottom of the main tank during the use of the sewage treatment sludge dewatering device. This allows the sludge inside the dewatering cylinder to be quickly dewatered. The mounting ring is fixedly installed at the lower end of the tank cover body. The mounting ring is snapped into the main tank body through the mounting groove, thus quickly completing the docking installation of the tank cover body. The mounting tenon is installed into the mounting ring using the docking groove, thereby limiting the mounting ring inside the main tank body. This facilitates the subsequent disassembly and assembly of the tank cover body, improves the disassembly and cleaning efficiency of the dewatering cylinder inside the main tank, and increases the overall practicality and efficiency of the sludge dewatering device. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a sewage treatment sludge dewatering device according to the present invention;

[0018] Figure 2 This is a three-dimensional sectional view of the dewatering component of a sewage treatment sludge dewatering device according to the present invention.

[0019] Figure 3 This is a three-dimensional sectional view of the disassembly and assembly components of a sewage treatment sludge dewatering device according to the present invention.

[0020] In the diagram: 1. Main tank body; 2. Support column leg; 3. Tank lid body; 4. Dehydration assembly; 401. Servo motor; 402. Support rod; 403. Mounting crossbar; 404. Scraper vertical bar; 405. Receiving frame; 406. Limiting slide groove; 407. Limiting slider; 408. Extrusion plate; 5. Assembly / disassembly assembly; 501. Mounting docking groove; 502. Mounting docking ring; 503. Docking mortise; 504. Mounting tenon; 505. Drive motor; 506. Dehydration cylinder. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] like Figure 1 and Figure 2As shown, a sludge dewatering device for sewage treatment includes a main tank 1 and a dewatering assembly 4. Support legs 2 are installed at the bottom of the main tank 1, and a tank cover body 3 is provided at the upper end of the main tank 1. The dewatering assembly 4 is installed inside the main tank 1 and includes a servo motor 401, a support rod 402, a mounting crossbar 403, a scraper vertical bar 404, a receiving frame 405, a limiting slide groove 406, a limiting slider 407, and a squeezing plate 408. The front end of the servo motor 401 is connected to the support rod 402, and the upper end of the support rod 402 is provided with the mounting crossbar 403. The front end of the mounting crossbar 403 is equipped with the scraper vertical bar 404. The support rod 402 is externally mounted with... The system includes a receiving frame 405, with a limiting groove 406 at its front end. A limiting slider 407 is connected inside the limiting groove 406, and a pressing plate 408 is installed on the outside of the limiting slider 407. A horizontal mounting bar 403 and a scraper vertical bar 404 are perpendicularly distributed and fixedly connected by bolts. The outer side of the scraper vertical bar 404 is horizontally distributed with the inner side of the main tank 1, and the outer side of the scraper vertical bar 404 is tightly fitted to the inner wall of the main tank 1. The internal dimensions of the limiting groove 406 are compatible with the external dimensions of the limiting slider 407, and the limiting slider 407 is connected to the receiving frame via the limiting groove 406. A sliding connection 405 is used, with the servo motor 401 fixedly installed at the upper center of the can lid body 3 by fastening bolts. The output shaft of the servo motor 401 is connected to the support rod 402 via a coupling. The operation of the servo motor 401 drives the support rod 402 to rotate, causing the receiving frame 405 installed outside the support rod 402 to rotate inside the main can body 1. The internal dimensions of the limiting groove 406 opened at the front end of the receiving frame 405 are adapted to the external dimensions of the limiting slider 407 added at the rear end of the extrusion plate 408. Thus, the extrusion plate 408 is slidably installed outside the receiving frame 405 through the limiting groove 406 and the limiting slider 407. The outer side is tightly fitted to the inner wall of the dewatering cylinder 506. The squeezing plate 408 allows the sludge to be squeezed externally during the dewatering process inside the dewatering cylinder 506, thereby improving the dewatering efficiency. Furthermore, the squeezing plate 408 can be replaced later to quickly scrape the sludge adhering to the inner wall of the dewatering cylinder 506 after dewatering. The mounting crossbar 403 is fixedly installed on the upper part of the support rod 402. At the same time, the rotation of the mounting crossbar 403 drives the scraping vertical bar 404 to rotate on the inner wall of the main tank 1, thereby scraping off the water stains adhering to the inner wall of the main tank 1, improving the collection efficiency of wastewater after sludge dewatering, and increasing the overall practicality and efficiency of the sludge dewatering device.

[0023] like Figures 1 to 3As shown, a disassembly assembly 5 is provided at the upper end of the main tank 1. The disassembly assembly 5 includes an installation docking groove 501, an installation docking ring 502, and a docking mortise 503. The installation docking groove 501 is internally connected to the installation docking ring 502, and the installation docking ring 502 has a docking mortise 503 inside. The disassembly assembly 5 also includes an installation tenon 504, a drive motor 505, and a dewatering cylinder 506. The docking mortise 503 is internally connected to the installation tenon 504. The drive motor 505 is installed at the middle of the bottom of the main tank 1. The drive motor 505 is connected to a dehydration cylinder 506 at its front end. The internal dimensions of the mounting groove 501 are adapted to the external dimensions of the mounting ring 502, and the mounting ring 502 is embeddedly connected to the main tank 1 through the mounting groove 501. The internal dimensions of the mating groove 503 are adapted to the external dimensions of the mounting tenon 504, and the mounting tenon 504 is connected to the mounting ring 502 through the mating groove 503. The drive motor 505 is fixedly installed at the bottom middle of the main tank 1 by fastening bolts. The output shaft of the drive motor 505 is connected to the dewatering cylinder 506 via a coupling. The drive motor 505 drives the dewatering cylinder 506 to rotate, enabling the sludge placed inside the dewatering cylinder 506 to undergo rapid dewatering. The mounting docking ring 502 is fixedly installed at the lower end of the tank cover body 3. The internal dimensions of the mounting docking groove 501 opened at the upper end of the main tank body 1 are adapted to the external dimensions of the mounting docking ring 502, so that the mounting docking ring 502 is snapped into the main tank body 1 through the mounting docking groove 501. This allows for the rapid assembly and installation of the tank cover body 3. The internal dimensions of the mating groove 503 inside the mounting ring 502 are compatible with the external dimensions of the mounting tenon 504. The mounting tenon 504 is then installed into the mounting ring 502 through the mating groove 503, thereby limiting the mounting ring 502 inside the main tank body 1. This facilitates the subsequent disassembly and assembly of the tank cover body 3, improves the efficiency of disassembling and cleaning the dewatering cylinder 506 inside the main tank body 1, and increases the overall practicality and efficiency of the sludge dewatering device.

[0024] In summary, this wastewater treatment sludge dewatering device, during use, firstly enhances the stability of the equipment through the support legs 2 installed at the bottom of the main tank 1. The drive motor 505 rotates the dewatering cylinder 506, allowing the sludge inside the cylinder to be quickly dewatered. The mounting ring 502 is then fixedly installed at the lower end of the tank cover body 3. The mounting groove 501 is used to snap the mounting ring 502 into the main tank 1, quickly completing the docking installation of the tank cover body 3. The mounting tenon 504 is then installed into the mounting ring 502 through the mortise groove 503, thus limiting the mounting ring 502 inside the main tank 1, facilitating subsequent disassembly and assembly of the tank cover body 3 and improving the efficiency of disassembling and cleaning the dewatering cylinder 506 inside the main tank 1. Next, the servo motor 401 rotates the support rod 402, causing the support rod 402 to rotate. The externally installed receiving frame 405 rotates inside the main tank 1. The limiting slide groove 406, in conjunction with the limiting slider 407, slides the extrusion plate 408 onto the outside of the receiving frame 405. The outer side of the extrusion plate 408 is tightly fitted to the inner wall of the dewatering cylinder 506. The extrusion plate 408 allows the sludge to be squeezed externally during the dewatering process inside the dewatering cylinder 506, thereby improving the dewatering efficiency. Furthermore, the extrusion plate 408 can be replaced later to quickly scrape the sludge adhering to the inner wall of the dewatering cylinder 506 after dewatering. The mounting crossbar 403 is fixedly installed on the upper part of the support rod 402. At the same time, the rotation of the mounting crossbar 403 drives the scraping vertical bar 404 to rotate inside the main tank 1, thereby scraping off the water stains adhering to the inner wall of the main tank 1, improving the collection efficiency of wastewater after sludge dewatering, and increasing the overall practicality and efficiency of the sludge dewatering device.

[0025] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A sewage treatment sludge dewatering apparatus comprising a main tank body (1) and a dewatering assembly (4), characterised in that, The bottom of the main tank body (1) is provided with a support column leg (2), and the upper end of the main tank body (1) is provided with a tank cover body (3), the inside of the main tank body (1) is provided with a dehydration assembly (4), and the dehydration assembly (4) comprises a servo motor (401), a supporting rod (402), a mounting cross rod (403), a liquid scraping vertical rod (404), a receiving frame (405), a limiting sliding groove (406), a limiting sliding block (407) and an extrusion plate (408), the front end of the servo motor (401) is connected with the supporting rod (402), the outer upper end of the supporting rod (402) is provided with the mounting cross rod (403), and the front end of the mounting cross rod (403) is provided with the liquid scraping vertical rod (404), the outside of the supporting rod (402) is provided with the receiving frame (405), the inside of the receiving frame (405) is provided with the limiting sliding groove (406), the inside of the limiting sliding groove (406) is connected with the limiting sliding block (407), and the outside of the limiting sliding block (407) is provided with the extrusion plate (408), and the upper end of the main tank body (1) is provided with a dismounting assembly (5).

2. The sewage treatment sludge dewatering device according to claim 1, characterized in that, The mounting cross rod (403) and the liquid scraping vertical rod (404) are vertically distributed, and the mounting cross rod (403) and the liquid scraping vertical rod (404) are fixedly connected through bolts.

3. The sewage treatment sludge dewatering device according to claim 1, characterized in that, The outside of the liquid scraping vertical rod (404) and the inside of the main tank body (1) are horizontally distributed, and the outside of the liquid scraping vertical rod (404) is tightly combined with the inner wall of the main tank body (1).

4. The sewage treatment sludge dewatering device according to claim 1, characterized in that, The inside dimension of the limiting sliding groove (406) is matched with the outside dimension of the limiting sliding block (407), and the limiting sliding block (407) is slidably connected with the receiving frame (405) through the limiting sliding groove (406).

5. The sewage treatment sludge dewatering device according to claim 1, characterized in that, The dismounting assembly (5) comprises a mounting butt joint groove (501), a mounting butt joint ring (502) and a butt joint mortise (503), the inside of the mounting butt joint groove (501) is connected with the mounting butt joint ring (502), and the inside of the mounting butt joint ring (502) is provided with the butt joint mortise (503).

6. A sewage treatment sludge dewatering device as claimed in claim 5 wherein, The dismounting assembly (5) further comprises a mounting tenon (504), a driving motor (505) and a dehydration cylinder (506), the inside of the butt joint mortise (503) is connected with the mounting tenon (504), the bottom of the main tank body (1) is provided with the driving motor (505), and the front end of the driving motor (505) is connected with the dehydration cylinder (506).

7. A sewage treatment sludge dewatering device as claimed in claim 6, wherein, The inside dimension of the mounting butt joint groove (501) is matched with the outside dimension of the mounting butt joint ring (502), and the mounting butt joint ring (502) is embeddedly connected with the main tank body (1) through the mounting butt joint groove (501).

8. A sewage treatment sludge dewatering device as claimed in claim 6, wherein, The inside dimension of the butt joint mortise (503) is matched with the outside dimension of the mounting tenon (504), and the mounting tenon (504) is connected with the mounting butt joint ring (502) through the butt joint mortise (503).