Sludge treatment system

Abstract

The utility model relates to a sludge treatment system, including concentration subassembly, conditioning subassembly and dewatering subassembly, the concentration subassembly includes sludge concentration tank and filtrate collection tank, the conditioning subassembly includes dosing unit and sludge conditioning tank, the filtrate collection tank passes through pump and pipeline and is communicated with the feed inlet of primary O tank, and the dewatering subassembly passes through the pump and pipeline and is communicated with the feed inlet of secondary O tank. The sludge thickening tank is communicated with a material conveying pipeline of the dosing unit and then is communicated with a material inlet of the sludge conditioning tank, and a material outlet of the sludge conditioning tank is communicated with the dewatering assembly; according to the treatment system, the pipeline mixer is arranged between the sludge thickening tank and the sludge conditioning tank, and chemicals are mixed into the sludge in advance, so that the sludge and the chemicals are mixed more uniformly, the dosage is effectively reduced, the water content in the sludge is reduced, and the working efficiency of the filter press is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sludge treatment, and specifically relates to a sludge treatment system. Background Art

[0002] The wastewater generated in the yeast production process belongs to high-concentration organic wastewater, which has a high COD concentration and contains rich inorganic trace elements such as nitrogen, phosphorus, potassium, calcium, and iron. Its biodegradability is poor. If these wastewaters are directly discharged, it will cause great pollution to the receiving water body.

[0003] After the sewage is preliminarily lined in the sedimentation tank, the moisture content of the sludge at the bottom is relatively large and needs to be further treated before it can be filtered by a filter press. In the existing sludge treatment system, the moisture content of the treated sludge is still relatively high and the energy consumption is large; therefore, how to overcome the above existing technical problems and defects has become the key problem to be solved. Summary of the Invention

[0004] The utility model purpose of the present utility model is to overcome the defects described in the background art, so as to realize a sludge treatment system. A pipeline mixer is arranged between the sludge thickening tank and the sludge conditioning tank, and drugs are premixed in the sludge in advance, so that the sludge and the drugs are mixed more evenly, effectively reducing the drug dosage, reducing the water content in the sludge, and improving the working efficiency of the filter press.

[0005] To achieve the above utility model purpose, the technical solution of the present utility model is: a sludge treatment system, including a concentration component, a conditioning component, and a dehydration component. The concentration component includes a sludge thickening tank and a filtrate collection tank. The conditioning component includes a drug addition unit and a sludge conditioning tank. The filtrate collection tank is communicated with the feed inlet of the first-stage O tank through a pump and a pipeline. After the feed pipelines of the sludge thickening tank and the drug addition unit are communicated, they are connected to the feed inlet of the sludge conditioning tank. The discharge outlet of the sludge conditioning tank is communicated with the dehydration component.

[0006] Further, the drug addition unit includes a main drug tank, a secondary drug tank, and a pipeline mixer. The pipeline mixer is installed on the pipeline between the sludge thickening tank and the sludge conditioning tank. The main drug tank and the secondary drug tank are communicated with the pipeline mixer through pumps and pipelines.

[0007] Further, the dehydration component includes a filter press and a water filtration collection tank. A slurry pump is arranged at the bottom of the sludge conditioning tank, and the slurry pump is communicated with the feed inlet of the filter press through a pipeline.

[0008] Further, the filtrate drain outlet of the filter press and the upper water outlet of the sludge conditioning tank are respectively communicated with the water filtration collection tank through pumps and pipelines.

[0009] The beneficial effects of the sludge treatment system of the present utility model:

[0010] In the sludge treatment system of the present utility model, a pipe mixer is arranged between the sludge thickening tank and the sludge conditioning tank, and the medicine is conveyed into the pipe mixer, so that the coagulant aid and the flocculant are mixed with the sludge before the sludge enters the sludge conditioning tank. Compared with directly adding the medicine into the sludge conditioning tank, the sludge and the medicine are more evenly mixed, the dosage of the medicine can be effectively reduced, the water content in the sludge is lower, the working efficiency of the filter press can be effectively improved, the amount of the filter cake is increased, and the filter cake with lower water content is also easier to process, saving the sludge treatment cost and reducing the energy consumption. Brief Description of the Drawings

[0011] Figure 1 is a schematic diagram of the sludge treatment system of the present utility model;

[0012] In the figure: 1 - sludge thickening tank, 2 - filtrate collection tank, 3 - main medicine tank, 4 - auxiliary medicine tank, 5 - pipe mixer, 6 - sludge conditioning tank, 7 - water filtration collection tank, 8 - filter press. Detailed Embodiment

[0013] The sludge treatment system of the present utility model will be described in more detail below with reference to the drawings and through specific embodiments.

[0014] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0015] See Figure 1 , a sludge treatment system of this embodiment, in which a pipe mixer is arranged between the sludge thickening tank and the sludge conditioning tank, and the medicine is mixed into the sludge in advance to make the sludge and the medicine more evenly mixed, effectively reducing the dosage of the medicine, reducing the water content in the sludge, and improving the working efficiency of the filter press. It mainly includes a sludge thickening tank 1, the supernatant of the sludge thickening tank 1 enters the filtrate collection tank 2, and the liquid collected in the filtrate collection tank 2 is conveyed to the first-stage O tank 9 through a water pump and a pipeline for further treatment.

[0016] A slurry pump is arranged at the bottom of the sludge thickening tank 1, and the slurry pump is communicated with the feed inlet of the sludge conditioning tank 6 through a main pipeline. A pipe mixer 5 is installed on the main pipeline, and the medicine delivery pipelines of the main medicine tank 3 and the auxiliary medicine tank 4 are communicated with the front end of the pipe mixer 5. A slurry pump is arranged at the bottom of the sludge conditioning tank 6, and the slurry pump is communicated with the feed inlet of the plate and frame filter press 8 through a pipeline. The supernatant at the upper part of the sludge conditioning tank 6 is conveyed to the water filtration collection tank 7 for temporary storage through a water pump and a pipeline for further treatment.

[0017] In the improved system, the sludge after preliminary sedimentation is first concentrated in the sludge thickening tank. After the concentration of the sludge is increased, it is then transported to the sludge conditioning tank. On the pipeline for transporting the sludge, a coagulant aid, a flocculant and other drugs to be added are added to the sludge by using a pipeline mixer, so that the sludge and the drugs are mixed during the pipeline transportation. Compared with directly adding the drugs into the sludge conditioning tank, the drugs and the sludge can be fully and evenly mixed in a short time, the dosage of the drugs can be effectively reduced, and the water content of the bottom sludge can be reduced. Furthermore, the working efficiency of the filter press can be improved, the cost of sludge treatment can be saved as a whole, and the energy consumption can be reduced.

[0018] Unless otherwise defined, the technical terms or scientific terms used herein shall have the ordinary meanings understood by those of ordinary skill in the field to which the present utility model belongs. Words such as "comprising" or "including" mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, whether direct or indirect.

[0019] In the foregoing, the exemplary embodiments of the present utility model have been described in detail with reference to the preferred embodiments. However, those skilled in the art can understand that, without departing from the concept of the present utility model, various modifications and variations can be made to the above specific embodiments, and various combinations can be made to the technical features and structures proposed by the present utility model, without exceeding the protection scope of the present utility model.

Claims

1. A sludge treatment system, comprising a concentration component, a conditioning component and a dewatering component, characterized in that: The concentration assembly includes a sludge thickening tank and a filtrate collection tank. The conditioning assembly includes a chemical dosing unit and a sludge conditioning tank. The filtrate collection tank is connected to the feed inlet of the first-stage O tank through a pump and a pipeline. After the feeding pipelines of the sludge thickening tank and the chemical dosing unit are connected, they are connected to the feed inlet of the sludge conditioning tank. The discharge outlet of the sludge conditioning tank is connected to the dewatering assembly. The chemical dosing unit includes a main chemical tank, a secondary chemical tank, and a pipeline mixer. The pipeline mixer is installed on the pipeline between the sludge thickening tank and the sludge conditioning tank. The main chemical tank and the secondary chemical tank are connected to the pipeline mixer through pumps and pipelines.

2. The sludge treatment system according to claim 1, characterized in that: The dewatering assembly includes a filter press and a water filtration collection tank. A slurry pump is arranged at the bottom of the sludge conditioning tank, and the slurry pump is connected to the feed inlet of the filter press through a pipeline.

3. The sludge treatment system according to claim 2, characterized in that: The filtrate drain outlet of the filter press and the upper water outlet of the sludge conditioning tank are respectively connected to the water filtration collection tank through pumps and pipelines.

Images