A corrosion-resistant sludge transport pipeline
By installing a noise-reducing structure on the outer wall and a protective layer on the inner wall of the sludge conveying pipeline, the problem of inconvenient noise reduction in sludge conveying pipelines is solved, achieving the effects of noise reduction and corrosion resistance, extending service life and improving applicability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUZHOU YUANHENG WATER TREATMENT CO LTD
- Filing Date
- 2025-08-18
- Publication Date
- 2026-06-30
AI Technical Summary
Existing sludge conveying pipelines are inconvenient to use due to noise reduction issues, resulting in poor applicability.
An anti-corrosion coating is applied to the outer wall of the pipeline body, and a noise reduction structure, including rubber pads, rubber seats, bases, clamps, and fixing nuts, is installed on its outside. The combination of these components reduces noise transmission. The inner wall is coated with a zinc-chromium coating, a corrosion-resistant coating, and a protective layer to improve the pipeline's corrosion resistance.
This resulted in reduced noise, enhanced corrosion resistance of the pipeline, extended service life, and improved sludge flow smoothness.
Smart Images

Figure CN224433843U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sludge conveying pipeline technology, and in particular to a corrosion-resistant sludge conveying pipeline. Background Technology
[0002] In sludge treatment, sludge transport pipelines refer to pipeline systems used to transport sludge generated during the wastewater treatment process. These pipelines typically connect wastewater treatment plants and sludge treatment facilities to ensure that sludge can be transported from the treatment plant to the treatment facilities for further treatment and disposal. Therefore, a corrosion-resistant sludge transport pipeline is used.
[0003] To address this, patent CN217815727U discloses a heat-insulating and corrosion-resistant conveying pipeline, comprising a pipe body, with a first insulation layer bonded to the outside of the pipe body, and a first protective layer bonded to the outside of the first insulation layer. In this invention, the pipe body is protected by multiple layers: a first protective layer made of high-density polyethylene, a second protective layer made of polyethylene adhesive, and an outer anti-corrosion layer made of epoxy coal tar pitch. This ensures that the pipe body will not rot after prolonged underground use, preventing leakage of liquids and other media within the pipeline. The first insulation layer, made of rigid polyurethane, possesses excellent properties such as good thermal insulation, light weight, high specific strength, and convenient construction. The second insulation layer, made of composite silicate, features high temperature resistance, thin material usage, and low cost, providing long-term insulation for the conveying pipeline and ensuring that liquids and other media on the inner wall of the pipe do not deteriorate during transport.
[0004] While the aforementioned heat-insulating and corrosion-resistant conveying pipes can maintain the heat of the conveying pipes for a long time, thus ensuring that the liquid and other media on the inner wall of the pipe will not deteriorate during transportation, their applicability is low because they are not easy to reduce noise generated during sludge transportation. Utility Model Content
[0005] The purpose of this invention is to provide a corrosion-resistant sludge conveying pipe to solve the problem of existing sludge conveying pipes being inconvenient to reduce noise.
[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a corrosion-resistant sludge conveying pipeline, including a pipeline body;
[0007] Flanges are fixed to the outer walls at both ends of the pipe body, and a protective structure is provided on the inner wall of the pipe body.
[0008] The outer wall of the pipe body is provided with an anti-corrosion coating;
[0009] The outer side of the anti-corrosion coating is provided with a noise reduction structure. The noise reduction structure includes a rubber pad disposed on the outer side of the anti-corrosion coating. Rubber seats are provided on both sides of the bottom end of the rubber pad. A base is fixed to the bottom end of each rubber seat. A clamp is provided on the outer side of the rubber pad above the base. A fixing nut is threaded to the outer side of the clamp at the bottom end of the base.
[0010] When using this device, the noise reduction structure facilitates noise reduction, thereby improving the applicability of the sludge conveying pipeline during use; the protective structure enhances corrosion resistance, thereby extending the service life of the sludge conveying pipeline during use.
[0011] Preferably, the protective structure includes a zinc-chromium coating, a corrosion-resistant coating, and a protective layer. The zinc-chromium coating is fixed to the inner wall of the pipe body, a corrosion-resistant coating is provided on the inner side of the zinc-chromium coating, and a protective layer is provided on the inner side of the corrosion-resistant coating.
[0012] Preferably, the corrosion-resistant coating is actually a zirconia ceramic coating. Under the action of the corrosion-resistant coating, it possesses high hardness, high wear resistance, good high-temperature resistance, and chemical stability, and can withstand the erosion and wear of sludge, further improving the corrosion resistance of the pipeline body while enhancing the overall structural strength.
[0013] Preferably, the protective layer is actually a polytetrafluoroethylene coating. Under the action of the protective layer, it has excellent corrosion resistance, making it particularly suitable for conveying sludge containing corrosive substances. This extends the service life of the pipeline body and allows for smoother sludge flow within the pipeline, reducing sludge adhesion and accumulation.
[0014] Preferably, mounting holes are provided on both sides of the bottom of the base, and the clamp and the base are fixedly connected by fixing nuts. The mounting holes facilitate the installation and fixing of the base, and the rubber seat increases the friction between the rubber pad and the base, preventing the pipe body from shaking. The clamp is then fitted over the outside of the rubber pad.
[0015] Preferably, the clamp and the base form a sliding structure. The clamp and the base are fixed together by the fixing nut, thereby fixing the rubber pad to the outside of the anti-corrosion coating. The rubber pad reduces the transmission of noise generated by sludge flow.
[0016] Preferably, the anti-corrosion coating is actually a fluorocarbon topcoat. By applying the anti-corrosion coating to the outside of the pipe body, it exhibits excellent weather resistance, chemical corrosion resistance, and self-cleaning properties, thereby improving the corrosion resistance of the pipe body.
[0017] The present invention provides a corrosion-resistant sludge conveying pipe, the advantages of which are:
[0018] By incorporating a noise reduction structure, the friction between the rubber pad and the base is increased under the action of the rubber seat, preventing the pipe body from shaking. By fitting the clamp onto the outside of the rubber pad and fixing it to the base with the fixing nut, the rubber pad is fixed to the outside of the anti-corrosion coating. Under the action of the rubber pad, the noise transmission generated by sludge flow can be reduced, thus realizing the function of the device in reducing noise and improving the applicability of the sludge conveying pipeline during use.
[0019] With its protective structure, the zinc-chromium coating provides excellent adhesion and corrosion resistance, laying a solid foundation for subsequent coatings. The corrosion-resistant coating exhibits high hardness, high wear resistance, good high-temperature resistance, and chemical stability, allowing it to withstand the scouring and abrasion of sludge. This further enhances the corrosion resistance of the pipeline body and strengthens the overall structure. The protective layer provides excellent corrosion resistance, making it particularly suitable for conveying sludge containing corrosive substances, thus extending the pipeline's service life. It also facilitates smoother sludge flow within the pipeline, reducing sludge adhesion and accumulation. This design achieves the device's corrosion-resistant function, thereby extending the service life of the sludge conveying pipeline. Attached Figure Description
[0020] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0021] Figure 2 This is a three-dimensional structural schematic diagram of the main cross-section of this utility model;
[0022] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;
[0023] Figure 4 This is a side view cross-sectional three-dimensional structural schematic diagram of the present invention;
[0024] Figure 5 This is a side view cross-sectional three-dimensional structural schematic diagram of the noise reduction structure of this utility model.
[0025] The following are the annotations in the figure: 1. Pipe body; 2. Protective structure; 201. Zinc-chromium coating; 202. Corrosion-resistant coating; 203. Protective layer; 3. Flange; 4. Noise reduction structure; 401. Rubber gasket; 402. Base; 403. Clamp; 404. Rubber seat; 405. Fixing nut; 5. Anti-corrosion coating. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] Please see Figures 1-5 This utility model provides a corrosion-resistant sludge conveying pipeline, including a pipeline body 1. Flanges 3 are fixed to the outer walls of both ends of the pipeline body 1. A protective structure 2 is provided on the inner wall of the pipeline body 1. The protective structure 2 includes a zinc-chromium coating 201, a corrosion-resistant coating 202, and a protective layer 203. The zinc-chromium coating 201 is fixed to the inner wall of the pipeline body 1. The corrosion-resistant coating 202 is provided on the inner side of the zinc-chromium coating 201. The protective layer 203 is provided on the inner side of the corrosion-resistant coating 202. The corrosion-resistant coating 202 is actually a zirconia ceramic coating, and the protective layer 203 is actually a polytetrafluoroethylene coating.
[0028] Reference Figure 2 and Figure 3 As shown, by using the zinc-chromium coating 201 as the bottom layer, it has good adhesion and corrosion resistance, providing a solid foundation for subsequent coatings. The corrosion-resistant coating 202 is uniformly coated on the inner side of the zinc-chromium coating 201. The corrosion-resistant coating 202 is actually a zirconia ceramic coating. Under the action of the corrosion-resistant coating 202, it has high hardness, high wear resistance, good high temperature resistance and chemical stability, and can withstand the scouring and wear of sludge, further improving the corrosion resistance of the pipeline body 1 and enhancing the overall structural strength. The protective layer 203 is uniformly coated on the inner side of the corrosion-resistant coating 202. The protective layer 203 is actually a polytetrafluoroethylene coating. Under the action of the protective layer 203, it has excellent corrosion resistance, and is particularly suitable for conveying sludge containing corrosive substances, thereby extending the service life of the pipeline body 1 and making the flow of sludge in the pipeline body 1 smoother, reducing the adhesion and accumulation of sludge.
[0029] The outer wall of the pipe body 1 is provided with an anti-corrosion coating 5. A noise reduction structure 4 is provided on the outside of the anti-corrosion coating 5. The noise reduction structure 4 includes a rubber pad 401 provided on the outside of the anti-corrosion coating 5. Rubber seats 404 are provided on both sides of the bottom end of the rubber pad 401. A base 402 is fixed to the bottom end of each rubber seat 404. A clamp 403 is provided on the outside of the rubber pad 401 above the base 402. A fixing nut 405 is threaded to the outside of the clamp 403 at the bottom end of the base 402. There are mounting holes through both sides of the bottom of the base 402. The clamp 403 and the base 402 are fixedly connected by the fixing nut 405. The clamp 403 and the base 402 form a sliding structure. The anti-corrosion coating 5 is actually a fluorocarbon topcoat.
[0030] Reference Figure 1 and Figure 5 As shown, a rubber pad 401 is placed over the outer side of the anti-corrosion coating 5 and positioned on top of a rubber seat 404. The rubber seat 404 increases the friction between the rubber pad 401 and the base 402, preventing the pipe body 1 from shaking. A clamp 403 is fitted over the outer side of the rubber pad 401, and the clamp 403 and base 402 are fixed together by a fixing nut 405. This fixes the rubber pad 401 to the outer side of the anti-corrosion coating 5. The rubber pad 401 reduces noise transmission caused by sludge flow. The mounting hole facilitates the installation and fixing of the base 402. The anti-corrosion coating 5, applied to the outer side of the pipe body 1, provides excellent weather resistance, chemical corrosion resistance, and self-cleaning properties, thereby improving the corrosion resistance of the pipe body 1.
[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A corrosion-resistant sludge conveying pipeline, comprising a pipeline body (1); Its features are: The outer walls at both ends of the pipe body (1) are fixed with flanges (3), and the inner wall of the pipe body (1) is provided with a protective structure (2); The outer wall of the pipe body (1) is provided with an anti-corrosion coating (5); A noise reduction structure (4) is provided on the outside of the anti-corrosion coating (5). The noise reduction structure (4) includes a rubber pad (401) provided on the outside of the anti-corrosion coating (5). A rubber seat (404) is provided on both sides of the bottom end of the rubber pad (401). A base (402) is fixed to the bottom end of the rubber seat (404). A clamp (403) is provided on the outside of the rubber pad (401) above the base (402). A fixing nut (405) is threaded to the outside of the clamp (403) at the bottom end of the base (402).
2. The corrosion-resistant sludge conveying pipeline according to claim 1, characterized in that: The protective structure (2) includes a zinc-chromium coating (201), a corrosion-resistant coating (202), and a protective layer (203). The zinc-chromium coating (201) is fixed to the inner wall of the pipe body (1). The corrosion-resistant coating (202) is provided on the inner side of the zinc-chromium coating (201), and the protective layer (203) is provided on the inner side of the corrosion-resistant coating (202).
3. The corrosion-resistant sludge conveying pipeline according to claim 2, characterized in that: The corrosion-resistant coating (202) is actually a zirconia ceramic coating.
4. The corrosion-resistant sludge conveying pipeline according to claim 2, characterized in that: The protective layer (203) is actually a polytetrafluoroethylene coating.
5. The corrosion-resistant sludge conveying pipeline according to claim 1, characterized in that: The base (402) has mounting holes on both sides of its bottom, and the clamp (403) and the base (402) are fixedly connected by fixing nuts (405).
6. The corrosion-resistant sludge conveying pipeline according to claim 1, characterized in that: The clamp (403) and the base (402) form a sliding structure.
7. The corrosion-resistant sludge conveying pipeline according to claim 1, characterized in that: The anti-corrosion coating (5) is actually a fluorocarbon topcoat.