Innocent treatment equipment for sludge
Through the alkaline conditioning and ammonia stripping technology of the sludge harmless treatment equipment, the problems of environmental pollution and resource waste in sludge treatment have been solved, the harmlessness and resource utilization of sludge have been achieved, and the effect of "treating waste with waste" has been achieved.
Patent Information
- Application Number
- CN202422539451.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-10-21
AI Technical Summary
Existing technologies are difficult to effectively treat organic matter and pathogens in sludge, resulting in environmental pollution and waste of resources, and there is a lack of efficient and harmless treatment methods.
A sludge harmless treatment equipment is used, including a sludge storage tank, an alkaline ammonia nitrogen stripping room, a quicklime elevator, an air compressor, a purification tower, an acid conditioning tank and an anaerobic fermentation tank. The sludge is harmlessly treated through alkaline conditioning, ammonia stripping and air flow stirring, combined with industrial waste acid neutralization.
The hydrolysis rate of PAM in sludge is improved, the generation of toxic substances is reduced, the harmless treatment and resource utilization of sludge are realized, the effect of "treating waste with waste" is achieved, and energy is saved.
Smart Images
Figure CN223316558U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of sludge treatment equipment, and in particular relates to sludge harmless treatment equipment. Background Art
[0002] Sludge is a comprehensive term for materials from various sources, and its properties and types vary fundamentally depending on its source. For example, based on its generation pathway, sludge can be divided into three categories: domestic sewage, industrial wastewater, and water supply. Based on its chemical composition and basic properties, it can be categorized into four types: organic, inorganic, hydrophilic, and hydrophobic. Furthermore, sludge can be categorized based on its treatment process, including raw sludge, concentrated sludge, and digested sludge.
[0003] The harmless treatment of sewage sludge is crucial to environmental protection. Sludge contains large amounts of organic matter, pathogens, and potentially valuable nutrients. If discharged without treatment, it can lead to a series of environmental problems, including soil salinization and microbial mortality, seriously impacting the environment and public health. Harmless treatment can reduce sludge volume, eliminate pathogens, and prevent secondary pollution. It also recovers useful substances and realizes resource utilization. Furthermore, promoting the harmless treatment and resource utilization of sewage sludge is also a key measure in the fight against pollution. It helps to promote synergistic effects in pollution reduction and carbon reduction, promotes the comprehensive green transformation of economic and social development, and is of great significance to building waste-free cities and promoting the construction of a beautiful China. Therefore, the harmless treatment of sewage sludge is a key measure to protect the ecological environment and achieve sustainable development. Utility Model Content
[0004] In view of the problems raised by the above background technology, the purpose of the present invention is to provide a sludge harmless treatment device.
[0005] In order to achieve the above technical objectives, the technical solutions adopted by this utility model are as follows:
[0006] A sludge harmless treatment equipment includes a sludge storage tank, the output end of the sludge storage tank is connected to a first sludge pump conveyor, the output end of the first sludge pump conveyor is connected to an alkaline ammonia nitrogen stripping room, the alkaline ammonia nitrogen stripping room is equipped with a quicklime elevator and an air compressor, the output end of the alkaline ammonia nitrogen stripping room is connected to a purification tower and a second sludge pump conveyor, the output end of the second sludge pump conveyor is connected to an acid conditioning tank, the acid conditioning tank is equipped with an agitator and a liquid pump, the output end of the acid conditioning tank is connected to a third sludge pump conveyor, and the output end of the third sludge pump conveyor is connected to an anaerobic fermentation tank.
[0007] It is further defined that the first sludge pump conveyor, the second sludge pump conveyor and the third sludge pump conveyor have the same structure. Such a design has the same use effect and is conducive to spare parts replacement and maintenance.
[0008] It is further defined that the quicklime elevator is a spiral elevator. Such a design can achieve the conveying effect while preventing dust and fly ash.
[0009] It is further defined that a filter is installed at the input end of the air compressor. Such a design prevents impurities from being blown into the alkaline ammonia nitrogen stripping room.
[0010] It is further defined that the output end of the agitator is equipped with a scraper with specifications and dimensions matching the inner wall of the acid conditioning tank. Such a design can achieve the purpose of preventing adhesion.
[0011] The beneficial effects of adopting the utility model are:
[0012] The structural design of the utility model is adopted to achieve harmless treatment of PAM (polyacrylamide) dewatered sludge. The alkaline conditioning method is used to treat the PAM dewatered sludge, which greatly improves the hydrolysis rate of PAM in the dewatered sludge and reduces the possibility of PAM degrading and producing toxic substances such as acrylamide during anaerobic digestion.
[0013] The structural design of the utility model can realize the neutralization and conditioning of sludge by using industrial waste acid as a regulator, realize the unified treatment of dewatered sludge and industrial waste acid, and achieve the effect of "treating waste with waste";
[0014] The structural design of the utility model can be combined with ammonia stripping to perform air flow stirring. When quicklime meets water, heat is released to increase the ammonia stripping temperature, thus saving energy. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The present invention can be further described by way of non-limiting examples given in the accompanying drawings;
[0016] Figure 1 This is a structural diagram of an embodiment of a sludge harmless treatment equipment of the utility model;
[0017] The main component symbols are described as follows:
[0018] Sludge storage tank 1; first sludge pump conveyor 2; alkaline ammonia nitrogen stripping room 3; quicklime elevator 4; air compressor 5; purification tower 6; second sludge pump conveyor 7; acid conditioning tank 8; agitator 9; liquid pump 10; third sludge pump conveyor 11; anaerobic fermentation tank 12. DETAILED DESCRIPTION
[0019] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.
[0020] like Figure 1As shown, the utility model is a sludge harmless treatment equipment, including a sludge storage tank 1, the output end of the sludge storage tank 1 is connected to a first sludge pump conveyor 2, the output end of the first sludge pump conveyor 2 is connected to an alkaline ammonia nitrogen stripping room 3, the alkaline ammonia nitrogen stripping room 3 is equipped with a quicklime elevator 4 and an air compressor 5, the output end of the alkaline ammonia nitrogen stripping room 3 is connected to a purification tower 6 and a second sludge pump conveyor 7, the output end of the second sludge pump conveyor 7 is connected to an acid conditioning tank 8, the acid conditioning tank 8 is equipped with an agitator 9 and a liquid pump 10, the output end of the acid conditioning tank 8 is connected to a third sludge pump conveyor 11, and the output end of the third sludge pump conveyor 11 is connected to an anaerobic fermentation tank 12.
[0021] In this embodiment, when a sludge harmless treatment device is used, the PAM dehydrated sludge is dumped into the sludge storage tank 1. When the sludge in the sludge storage tank 1 reaches a certain volume, it is transported to the alkaline ammonia nitrogen stripping room 3 by the first sludge pump conveyor 2. At the same time, the quicklime elevator 4 sends quicklime into the alkaline ammonia nitrogen stripping room 3 for alkaline conditioning. At the same time, the air compressor 5 is also running to strip ammonia into the alkaline ammonia nitrogen stripping room 3 to achieve the purpose of air flow stirring. The tail gas after the ammonia stripping in the alkaline ammonia nitrogen stripping room 3 is transported to the purification tower 6 for purification. It should be noted that the absorption liquid used in the purification tower 6 is mainly clean water, and ammonia water can be obtained from the purification tower 6.
[0022] The sludge after alkaline adjustment and stripping in the alkaline ammonia nitrogen stripping room 3 is transported by the second sludge pump conveyor 7 to the acid conditioning tank 8 for treatment. The agitator 9 on the acid conditioning tank 8 operates to stir the inside of the acid conditioning tank 8. While stirring, the liquid pump 10 operates to send industrial waste acid into the acid conditioning tank 8 for neutralization.
[0023] The sludge neutralized in the acid conditioning tank 8 is transported by the third sludge pump conveyor 11 to the anaerobic fermentation tank 12 for the final treatment of anaerobic digestion, and can be directly discharged after the treatment is completed.
[0024] Preferably, the first sludge pump conveyor 2, the second sludge pump conveyor 7 and the third sludge pump conveyor 11 have the same structure. Such a design has the same use effect and is conducive to spare parts replacement and maintenance. In fact, the structure of the first sludge pump conveyor 2, the second sludge pump conveyor 7 and the third sludge pump conveyor 11 can also be considered according to specific circumstances.
[0025] Preferably, the quicklime elevator 4 is a spiral elevator. Such a design can achieve the conveying effect while preventing dust and fly ash. In fact, the choice of quicklime elevator 4 can also be considered according to specific circumstances.
[0026] It is preferred that a filter is installed at the input end of the air compressor 5. This design prevents impurities from being blown into the alkaline ammonia nitrogen stripping room 3. In fact, dust and impurity prevention measures for the air compressor 5 can also be considered according to specific circumstances.
[0027] Preferably, the output end of the agitator 9 is equipped with a scraper having specifications and dimensions matching the inner wall of the acid conditioning tank 8. This design can prevent adhesion. In fact, the structure of the agitator 9 can also be considered according to specific circumstances.
[0028] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by persons skilled in the art without departing from the spirit and technical principles disclosed herein shall be covered by the claims of the present invention.
Claims
1. A sludge harmless treatment device, comprising a sludge storage tank (1), characterized in that: The output end of the sludge storage tank (1) is connected to a first sludge pump conveyor (2), the output end of the first sludge pump conveyor (2) is connected to an alkaline ammonia nitrogen stripping room (3), the alkaline ammonia nitrogen stripping room (3) is equipped with a quicklime elevator (4) and an air compressor (5), the output end of the alkaline ammonia nitrogen stripping room (3) is connected to a purification tower (6) and a second sludge pump conveyor (7), the output end of the second sludge pump conveyor (7) is connected to an acid conditioning tank (8), the acid conditioning tank (8) is equipped with an agitator (9) and a liquid pump (10), the output end of the acid conditioning tank (8) is connected to a third sludge pump conveyor (11), and the output end of the third sludge pump conveyor (11) is connected to an anaerobic fermentation tank (12).
2. The sludge harmless treatment equipment according to claim 1, characterized in that: The first sludge pump conveyor (2), the second sludge pump conveyor (7) and the third sludge pump conveyor (11) have the same structure.
3. The sludge harmless treatment equipment according to claim 2, characterized in that: The quicklime elevator (4) is a spiral elevator.
4. The sludge harmless treatment equipment according to claim 3, characterized in that: The input end of the air compressor (5) is equipped with a filter.
5. The sludge harmless treatment equipment according to claim 4, characterized in that: The output end of the stirrer (9) is provided with a scraper having a size matching the inner wall of the acid conditioning tank (8).