Slurry filtration device

Abstract

A slurry filtration device with an external sludge discharge structure includes: a shell, an odor control port at the top, a water inlet on the side, a water outlet and a sludge discharge port at the bottom, and a rotating drum, a scraper, and nozzles inside the shell. The rotating drum is located directly above the water outlet inside the shell, the scraper is located on one side of the rotating drum with one end above the sludge discharge port, and several nozzles are arranged side-by-side below the odor control port. This invention reduces the footprint by more than half while more effectively filtering out finer particulate impurities, significantly reducing the suspended solids in the filtered water. The device can now operate fully automatically, improving both equipment efficiency and subsequent wastewater treatment efficiency. After using this equipment, the SS removal rate can reach an average of over 30%.

Description

Technical Field

[0001] This utility model relates to a technology in the field of environmental protection treatment equipment, specifically a slurry filtration device. Background Technology

[0002] Wastewater treatment is the process of purifying wastewater to meet the water quality requirements for discharge into a water body or for reuse. Current wastewater treatment methods mainly use fixed screens and rotary drum screens, which are ineffective at filtering small particles and removing food fibers, leading to a significant reduction in subsequent wastewater treatment efficiency and requiring more manpower to ensure stable system operation. Utility Model Content

[0003] This invention addresses the aforementioned shortcomings of existing technologies by proposing a slurry filtration device with an external slag discharge structure. This reduces the overall footprint of the slurry filtration device by more than half while more effectively filtering out finer particulate impurities, thus significantly reducing the suspended solids in the filtered water. The device can now operate fully automatically, improving both equipment efficiency and subsequent wastewater treatment efficiency. After using this equipment, the SS removal rate can reach an average of over 30%.

[0004] This utility model is achieved through the following technical solution:

[0005] This utility model relates to a slurry filtration device, comprising: a shell, a deodorization port disposed on its top, a water inlet disposed on its side, a water outlet and a slag outlet disposed on its bottom, and a rotating drum, a slag scraper and nozzles disposed inside the shell, wherein: the rotating drum is located directly above the water outlet inside the shell, the slag scraper is located on one side of the rotating drum and one end of the slag scraper is located above the slag outlet, and a plurality of nozzles are arranged side by side below the deodorization port.

[0006] The drum is connected to an agitator located outside the housing.

[0007] This device introduces slurry into a fully automatic filtration unit through pipelines. The slurry undergoes solid-liquid separation inside the rotating drum. Impurities are filtered, pass through a screen, and exit as slag. The slurry flows from the internal pipeline into subsequent pipelines. During the operation of the slurry filtration unit, internal and external nozzles backwash the rotating drum to ensure the normal operation of the slag discharge. Attached Figure Description

[0008] Figures 1-4 These are the front, left, right, and rear views of this utility model;

[0009] In the diagram: 1. Inlet, 2. Outlet, 3. Sludge outlet, 4. Deodorizing outlet, 5. Spray outlet, 6. Rotary drum, 7. Sludge scraper, 8. Inspection cover, 9. Agitator, 10. Viewing window, 11. Nozzle, 12. Housing, 13. Grid array, 14. Nozzle body, 15. Wear-resistant insert, 16. Sealing ring;

[0010] Figure 5 This is a schematic diagram of the cylindrical structure;

[0011] Figure 6 This is a schematic diagram of the nozzle. Detailed Implementation

[0012] like Figures 1-4 As shown, this embodiment relates to a slurry filtration device, including: a shell 12, a deodorization port 4 disposed on its top, a water inlet 1 disposed on its side, a water outlet 2 and a slag outlet 3 disposed on its bottom, and a rotating drum 6, a scraper 7 and nozzles 11 disposed inside the shell 12, wherein: the rotating drum 6 is located directly above the water outlet inside the shell 12, the scraper 7 is located on one side of the rotating drum 6 and one end of the scraper 7 is located above the slag outlet 3, and a plurality of nozzles 11 are arranged side by side below the deodorization port 4.

[0013] The rotating drum 6 is connected to the agitator 9 located outside the housing 12.

[0014] The housing 12 is further provided with an inspection cover 8 and a viewing window 10.

[0015] like Figure 5 As shown, the rotating drum 6 is a cylindrical structure composed of a grid array 13, which makes it difficult for particles to adhere and increases the fluidity of the liquid. The main frame of the rotating drum is made of 316L stainless steel, which has high strength and corrosion resistance. Its working principle is that sewage or other raw water flows into the rotating drum from the front of the drum surface and flows out from the bottom. Suspended solids in the sewage are retained on the rotating drum surface. The trapped dirt is sent from the water inlet to the discharge end on the other side as the drum surface rotates, and is scraped off by the discharge mechanism. The external slag discharge reduces the overall area, which is beneficial to reducing the overall footprint. At the same time, it can filter out solids such as particles with a volume of 0.35mm or larger, and the minimum pore size can reach 0.35mm.

[0016] The scraper blade 7 is made of plastic, which can prevent long-term wear and tear, and at the same time better fit the drum surface.

[0017] like Figure 6 As shown, the nozzle 11 has a cylindrical structure, including: a nozzle body 14 and a wear-resistant insert 15 and a sealing ring 16 disposed therein, wherein: the wear-resistant insert 15 includes a convergence section b and a flow stabilization section a.

[0018] The converging section b is located at the tail of the nozzle and connected to the inlet, while the stabilizing section a is located at the head of the nozzle and connected to the outlet.

[0019] The nozzle 11 is connected to the connecting pipe via a connecting thread.

[0020] The nozzle 11 is made of hardened stainless steel, which takes into account both wear resistance and flow accuracy. While significantly increasing the spraying area, it has a short target distance and strong impact force, making it suitable for removing hard dirt and ensuring that there are no residual particulate impurities on the equipment after spraying.

[0021] Compared with existing technologies, this device occupies more than half the area. At the same time, the equipment is fully automated and requires no personnel for inspection and maintenance. The drum has been changed from internal slag discharge to external slag discharge, the scraper has a longer service life, and the self-cleaning function can more effectively clean the particles in the equipment aperture. The minimum aperture of the drum can reach 0.35mm, which can more effectively filter out finer particulate impurities, thereby significantly reducing the suspended solids in the filtered water.

[0022] The above-described specific implementations can be partially adjusted by those skilled in the art in different ways without departing from the principles and purpose of this utility model. The scope of protection of this utility model is determined by the claims and is not limited to the above-described specific implementations. All implementation schemes within its scope are bound by this utility model.

Claims

1. A slurry filtration apparatus, characterized by, include: The enclosure comprises a deodorizing port on its top, a water inlet on its side, a water outlet and a sludge outlet on its bottom, and a rotating drum, a scraper, and nozzles inside the enclosure. The rotating drum is located directly above the water outlet inside the enclosure, the scraper is located on one side of the rotating drum with one end of the scraper above the sludge outlet, and several nozzles are arranged side by side below the deodorizing port.

2. The slurry filtration apparatus of claim 1, wherein, The drum is connected to an agitator located outside the housing, and the drum is a cylindrical structure composed of a grid array.

3. The slurry filtration apparatus of claim 1, wherein, The housing is further provided with an inspection cover and a viewing window.

4. The slurry filtration apparatus of claim 1, wherein, The nozzle has a cylindrical structure, including: a nozzle body and a wear-resistant insert and a sealing ring disposed therein, wherein: the wear-resistant insert includes a convergent section and a flow-stabilizing section.

5. The slurry filtration apparatus of claim 4, wherein, The converging section is located at the tail of the nozzle and connected to the inlet, while the flow stabilizing section is located at the head of the nozzle and connected to the outlet. The nozzle is connected to the connecting pipe via a connecting thread.

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