Sewer sludge treatment device for municipal engineering

Abstract

The sewer sludge treatment device for municipal engineering comprises a filter tank, a sewage tank, a purification tank, a sludge pump and a sludge dryer, a sewage inlet is formed in the top of one side of the filter tank, the sewage tank is located below the filter tank, and the top end of the sewage tank is communicated with the bottom end of the filter tank through a filter plate; the purification tank is located on one side of the filter tank, the bottom of the purification tank is communicated with the top of the filter tank, a sewage purification assembly is arranged in the purification tank, the sludge dryer is communicated with the bottom of the filter tank through a sludge pipeline, the sludge pump is arranged on the sludge pipeline, and an exhaust port is formed in the upper portion of the sludge dryer. According to the sewer sludge treatment device for municipal engineering, after water in sludge is filtered out, the filtered sludge is dried and reused, and the filtered sewage is purified and discharged after reaching the standard.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal construction equipment, in particular to a sewer sludge treatment device for municipal engineering. Background Art

[0002] Municipal engineering refers to municipal infrastructure construction projects. Municipal infrastructure refers to various buildings, structures, equipment, etc. that are set up within the planning and construction scope of urban areas and towns based on government responsibilities and obligations to provide residents with paid or free public products and services. Various public infrastructure construction supporting urban life falls within the scope of municipal engineering.

[0003] The length of urban sewers is also growing rapidly, and the work of dredging sewers has become increasingly arduous. The composition of sewer sludge is complex. In addition to a large amount of water, it also contains a large amount of organic matter, difficult-to-degrade organic matter, multiple trace elements, pathogenic microorganisms and parasite eggs, heavy metals and salts. The harmless and resource-based utilization of these large-volume and complex urban sewer sludge has become a new difficulty and challenge in the comprehensive environmental governance work. Therefore, we urgently need to design a sewer sludge treatment device for municipal engineering to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a sewage sludge treatment device for municipal engineering, which can filter out the water in the sludge, dry the filtered sludge for reuse, and purify the filtered sewage for discharge up to the standard.

[0005] The technical solution adopted by a sewage sludge treatment device for municipal engineering disclosed in the utility model is:

[0006] A sewage sludge treatment device for municipal engineering includes a filter tank, a sewage tank, a purification tank, a sludge pump and a sludge dryer. A sewage inlet is provided at the top of one side of the filter tank. The sewage tank is located below the filter tank, and the top of the sewage tank is connected to the bottom of the filter tank through a filter plate. The purification tank is located on one side of the filter tank, and the bottom of the purification tank is connected to the top of the filter tank. A sewage purification component is provided in the purification tank. The sludge dryer is connected to the bottom of the filter tank through a sludge pipe. The sludge pump is provided on the sludge pipe, and an exhaust port is provided above the sludge dryer.

[0007] As a preferred solution, the purification component includes a plurality of reaction carriers, the reaction carriers are embedded with microbial strains, and the reaction carriers are provided with a plurality of through holes.

[0008] As a preferred solution, an aeration pipe is provided at the bottom of the inner cavity of the purification tank, and the middle part of the aeration pipe is connected to the aeration device.

[0009] As a preferred solution, a drainage hole is provided on the side of the purification tank away from the sewage tank, and a blocking net is provided at the drainage hole.

[0010] As a preferred embodiment, a filter screen is provided at the exhaust port, and the filter screen includes a preliminary filter layer, an activated carbon layer and a sterilization layer which are arranged in sequence.

[0011] As a preferred solution, the sludge dryer is provided with a discharge port.

[0012] As a preferred solution, the sludge dryer is a hot air drying furnace.

[0013] The utility model discloses a sewage sludge treatment device for municipal engineering, which has the following beneficial effects: after the sludge enters the filter tank from the sewage inlet, the sewage enters the sewage tank through the filter plate, and then flows into the purification tank, and the sewage is purified by the purification components in the purification tank to make the sewage meet the discharge standard, and the sludge after filtering the sewage is extracted by a sludge pump, and the sludge enters the sludge dryer along the sludge pipeline. Since the sludge has preliminarily filtered the sewage in the filter tank, the sludge dryer can quickly dry the sludge, evaporate the moisture inside the sludge, and discharge the hot air from the exhaust port, so that the sludge can be reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a structural schematic diagram of a sewage sludge treatment device for municipal engineering.

[0015] Figure 2 The utility model is a structural schematic diagram of a filter screen of a sewage sludge treatment device for municipal engineering.

[0016] Figure 3 The utility model is a structural schematic diagram of a reaction carrier of a sewage sludge treatment device for municipal engineering.

[0017] 10. Filter tank; 11. Sewage inlet; 12. Filter plate; 20. Sewage tank; 30. Purification tank; 31. Aeration pipe; 32. Screen; 40. Sludge dryer; 41. Discharge port; 50. Sludge pipeline; 51. Sludge pump; 60. Reaction carrier; 61. Through hole; 70. Filter screen; 71. Preliminary filtration layer; 72. Activated carbon layer; 73. Sterilization layer. DETAILED DESCRIPTION

[0018] The present invention is further described and illustrated below in conjunction with specific embodiments and accompanying drawings:

[0019] Please refer to Figure 1A sewage sludge treatment device for municipal engineering includes a filter tank 10, a sewage tank 20, a purification tank 30, a sludge pump 51 and a sludge dryer 40. A sewage inlet 11 is provided at the top of one side of the filter tank 10. The sewage tank 20 is located below the filter tank 10, and the top of the sewage tank 20 is connected to the bottom of the filter tank 10 through a filter plate 12. The purification tank 30 is located on one side of the filter tank 10, and the bottom of the purification tank 30 is connected to the top of the filter tank 10. A sewage purification component is provided in the purification tank 30. The sludge dryer 40 is connected to the bottom of the filter tank 10 through a sludge pipe 50. The sludge pump 51 is provided on the sludge pipe 50. An exhaust port is provided above the sludge dryer 40.

[0020] In the above scheme, after the sludge enters the filter tank 10 from the sewage inlet 11, the sewage enters the sewage tank 20 through the filter plate 12, and then flows into the purification tank 30. The sewage is purified by the purification components in the purification tank 30 so that the sewage meets the discharge standard, and the sludge after filtering the sewage is extracted by the sludge pump 51, and the sludge enters the sludge dryer 40 along the sludge pipe 50. Since the sludge has preliminarily filtered the sewage in the filter tank 10, the sludge dryer 40 can quickly dry the sludge, evaporate the moisture inside the sludge, and discharge the hot air from the exhaust port, so that the sludge can be reused.

[0021] Please refer to Figure 1 and Figure 3 The purification component includes a plurality of reaction carriers 60, in which microorganisms are embedded, and a plurality of through holes 61 are opened in the reaction carrier 60. When sewage flows through the through holes 61 of the reaction carrier 60, the microorganisms will form a layer of biofilm on the surface of the reaction carrier 60 under the action of oxygen in the air and organic matter in the sewage, and the biofilm will react with pollutants in the sewage flowing through to biodegrade, thereby purifying the sewage. Specifically, the reaction carrier 60 is a spherical structure made of reinforced concrete material. The concrete surface is easily adhered by the biofilm, and the material is hard and not easy to be damaged. The manufacturing is simple and the cost is low. The spherical structure of the reaction carrier 60 has a small resistance to the water flow, and after a plurality of reaction carriers 60 are filled in the purification tank 30, they will not cause blockage to the water flow.

[0022] Furthermore, an aeration pipe 31 is provided at the bottom of the inner cavity of the purification tank 30, and the middle part of the aeration pipe 31 is connected to the aeration device. The aeration pipe 31 and the aeration device can forcibly transfer oxygen in the air to the sewage, so that the sewage can obtain sufficient dissolved oxygen, strengthen the contact between organic matter in the sewage in the purification tank 30 and microbial strains and dissolved oxygen, form a biofilm more quickly, and improve the purification efficiency. Specifically, a drainage hole is provided on the side of the purification tank 30 away from the sewage tank 20, and a blocking net 32 ​​is provided at the drainage hole. The purified sewage is discharged to the outside through the drainage hole, and the blocking net 32 ​​can prevent the reaction carrier 60 from flowing out.

[0023] Please refer to Figure 1 and Figure 2 Specifically, the sludge dryer 40 is a hot air drying furnace, which heats the sludge after filtering the sewage by hot air. In other embodiments, the sludge can also be heated by a heating block. Preferably, a filter screen 70 is provided at the exhaust port, and the filter screen 70 includes a preliminary filter layer 71, an activated carbon layer 72 and a sterilization layer 73 arranged in sequence. The gas generated by the sludge heating is filtered through the filter screen 70 to reduce the odor of the gas and perform sterilization and filtration treatment to protect the environment. The sludge dryer 40 is provided with a discharge port 41, and the treated sludge is output to an external transportation tool through the discharge port 41 for reuse.

[0024] The utility model provides a sewage sludge treatment device for municipal engineering. After the sludge enters the filter tank from the sewage inlet, the sewage enters the sewage tank through the filter plate, and then flows into the purification tank. The sewage is purified by the purification components in the purification tank to make the sewage meet the discharge standard. The sludge after filtering the sewage is extracted by a sludge pump, and the sludge enters the sludge dryer along the sludge pipeline. Since the sludge has preliminarily filtered the sewage in the filter tank, the sludge dryer can quickly dry the sludge, evaporate the moisture in the sludge, and discharge the hot air from the exhaust port, so that the sludge can be reused.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A sewage sludge treatment device for municipal engineering, characterized in that: It includes a filter tank, a sewage tank, a purification tank, a sludge pump and a sludge dryer. A sewage inlet is provided at the top of one side of the filter tank. The sewage tank is located below the filter tank, and the top of the sewage tank is connected to the bottom of the filter tank through a filter plate. The purification tank is located on one side of the filter tank, and the bottom of the purification tank is connected to the top of the filter tank. A sewage purification component is provided in the purification tank. The sludge dryer is connected to the bottom of the filter tank through a sludge pipe. The sludge pump is provided on the sludge pipe, and an exhaust port is provided above the sludge dryer.

2. A sewage sludge treatment device for municipal engineering as claimed in claim 1, characterized in that: The purification component comprises a plurality of reaction carriers, microbial strains are embedded in the reaction carriers, and a plurality of through holes are opened in the reaction carriers.

3. A sewage sludge treatment device for municipal engineering as claimed in claim 2, characterized in that: An aeration pipe is arranged at the bottom of the inner cavity of the purification tank, and the middle part of the aeration pipe is communicated with the aeration device.

4. A sewage sludge treatment device for municipal engineering as claimed in claim 2, characterized in that: A drainage hole is provided on one side of the purification tank away from the sewage tank, and a blocking net is provided at the drainage hole.

5. A sewage sludge treatment device for municipal engineering as claimed in claim 1, characterized in that: A filter screen is provided at the exhaust port, and the filter screen comprises a preliminary filter layer, an activated carbon layer and a sterilization layer which are arranged in sequence.

6. A sewage sludge treatment device for municipal engineering as claimed in claim 1, characterized in that: The sludge dryer is provided with a discharge port.

7. A sewage sludge treatment device for municipal engineering as claimed in claim 1, characterized in that: The sludge dryer is a hot air drying furnace.

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