High-efficiency backwashing walnut shell filter

Abstract

The utility model discloses a kind of efficient backwash walnut shell filters, including filter, the filter is provided with oil drain pipe, first pipeline and second pipeline, the oil drain pipe is welded in filter top side, the first pipeline is welded on filter outside top, first pipeline outer end is welded with first docking tee, the left end of first docking tee is connected with water inlet electric valve by flange, the right end of first docking tee is connected with backwash outlet electric valve by flange, the second pipeline is connected in filter bottom opening by flange, emptying and second docking tee are provided on second pipeline, the emptying is welded in second pipeline middle section, the second docking tee is welded in second pipeline outer end, the left end of second docking tee is connected with backwash inlet electric valve by flange, the right end of second docking tee is connected with water outlet electric valve by flange. The utility model is high in backwash efficiency, backwash is more thorough, reduce operating cost, improve equipment processing capacity.

Description

Technical Field

[0001] This utility model relates to a high-efficiency backwashing walnut shell filter, belonging to the field of water treatment technology. Background Technology

[0002] Traditional backwashing methods are prone to problems such as incomplete backwashing, filter media caking, and channeling, resulting in poor filter media regeneration. To ensure cleaning effectiveness, long backwashing times and large amounts of backwash water / air are often required, reducing equipment utilization and increasing operating costs. Furthermore, vigorous or uneven backwashing processes can exacerbate wear and breakage of the walnut shell filter media, shortening its lifespan and increasing replenishment costs. The fine particles from the breakage can also affect subsequent filtration performance. Some improved backwashing structures are overly complex, difficult to maintain, and costly. To address these issues, a new technical solution is proposed. Utility Model Content

[0003] The purpose of this invention is to provide a high-efficiency backwashing walnut shell filter to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a high-efficiency backwashing walnut shell filter, comprising a filter, wherein the filter is provided with an oil drain pipe, a first pipe and a second pipe, the oil drain pipe is welded to one side of the top of the filter, the first pipe is welded to the upper outer side of the filter, a first connecting tee is welded to the outer end of the first pipe, the left end of the first connecting tee is connected to an inlet electric valve through a flange, the right end of the first connecting tee is connected to a backwash outlet electric valve through a flange, the second pipe is connected to the bottom opening of the filter through a flange, the second pipe is provided with an vent and a second connecting tee, the vent is welded to the middle section of the second pipe, the second connecting tee is welded to the outer end of the second pipe, the left end of the second connecting tee is connected to a backwash inlet electric valve through a flange, and the right end of the second connecting tee is connected to an outlet electric valve through a flange.

[0005] Preferably, a walnut shell filter media is installed and fixed inside the filter at the lower center by screws, and a backwash uniform water distribution cap is placed below the bottom of the walnut shell filter media. The backwash uniform water distribution cap is fixedly connected to the inner wall of the filter by screws.

[0006] Preferably, a water inlet distribution plate is placed on top of the walnut shell filter media, and the end of the water inlet distribution plate is welded to the inner end of the first pipe.

[0007] Preferably, the end of the oil drain pipe is connected to a valve via a thread.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: The left end of the first connecting tee is connected to an inlet electric valve via a flange, which can transport sewage to the inlet distribution plate; the right end of the second connecting tee is connected to an outlet electric valve via a flange, which can easily discharge the filtered water; the left end of the second connecting tee is connected to a backwash inlet electric valve via a flange, which can transport backwash water / air into the filter; in summary, this utility model has high backwashing efficiency, more thorough backwashing, reduced operating costs, and improved equipment processing capacity. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the filter of this utility model; In the diagram: 1-Filter; 2-Oil drain pipe; 3-First pipe; 4-Second pipe; 5-First connecting tee; 6-Inlet electric valve; 7-Backwash outlet electric valve; 8-Drain port; 9-Second connecting tee; 10-Backwash inlet electric valve; 11-Outlet electric valve; 12-Walnut shell filter media; 13-Backwash uniform water distribution cap; 14-Inlet water distribution tray. Detailed Implementation

[0010] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0011] like Figure 1-2 As shown, a high-efficiency backwash walnut shell filter includes a filter 1. The filter 1 is equipped with an oil drain pipe 2, a first pipe 3, and a second pipe 4. The oil drain pipe 2 is welded to one side of the top of the filter 1. The first pipe 3 is welded to the upper outer side of the filter 1. A first connecting tee 5 is welded to the outer end of the first pipe 3. A water inlet electric valve 6 is connected to the left end of the first connecting tee 5 via a flange, and a backwash outlet electric valve 7 is connected to the right end of the first connecting tee 5 via a flange. The second pipe 4 is connected to the bottom opening of the filter 1 via a flange. An vent 8 and a second connecting tee 9 are provided on the second pipe 4. The vent 8 is welded to the middle section of the second pipe 4. The second connecting tee 9 is welded to the outer end of the second pipe 4. The left end of the second connecting tee 9 is connected to the backwash inlet electric valve 10 via a flange, and the right end of the second connecting tee 9 is connected to the outlet electric valve 11 via a flange. The walnut shell filter media 12 is installed and fixed inside the filter 1 in the middle and lower part by screws. The backwash uniform water distribution cap 13 is placed below the bottom of the walnut shell filter media 12. The backwash uniform water distribution cap 13 is fixed to the inner wall of the filter 1 by screws. The inlet water distribution plate 14 is placed on the top of the walnut shell filter media 12. The end of the inlet water distribution plate 14 is welded to the inner end of the first pipe 3. The end of the oil drain pipe 2 is connected to a valve via a thread.

[0012] Specific usage: Connect the outer end of the drain port 8 to the drain pipe via an electric valve; when filtering sewage, the sewage passes through the inlet electric valve 6 and the first pipe 3, and is evenly distributed into the entire filter 1 through the inlet water distribution plate 14. After the sewage passes through the walnut shell filter media 12 to filter and intercept suspended solids and other impurities, it enters the next process section through the outlet electric valve 11; during backwashing, backwash air, water, or a mixture of air and water enters the filter 1 through the backwash inlet electric valve 10, and then evenly backwashes the walnut shell filter media 12 through the backwash even water distribution cap 13. The impurities in the walnut shell filter media 12 are discharged together with the backwash water or air through the backwash outlet electric valve 7. At the same time, during backwashing, the valve on the oil drain pipe 2 can be opened to collect the floating oil accumulated over a long period of filtration. After collection, the valve on the oil drain pipe 2 is closed; when the filter 1 needs to be emptied after a long period of shutdown, the liquid in the filter 1 can be emptied through the electric valve on the drain port 8.

[0013] The above description is a preferred embodiment of the present utility model. For those skilled in the art, any changes, modifications, substitutions and variations made to the implementation methods without departing from the principles and spirit of the present utility model, based on the teachings of the present utility model, still fall within the protection scope of the present utility model.

Claims

1. A high-efficiency backwashing walnut shell filter, comprising a filter (1), characterized in that: The filter (1) is provided with an oil drain pipe (2), a first pipe (3) and a second pipe (4). The oil drain pipe (2) is welded to one side of the top of the filter (1). The first pipe (3) is welded to the upper outside of the filter (1). The outer end of the first pipe (3) is welded with a first connecting tee (5). The left end of the first connecting tee (5) is connected to an inlet electric valve (6) through a flange. The right end of the first connecting tee (5) is connected to a backwash outlet electric valve (7) through a flange. The second pipe (4) is connected to the bottom opening of the filter (1) through a flange. The second pipe (4) is provided with an vent (8) and a second connecting tee (9). The vent (8) is welded to the middle section of the second pipe (4). The second connecting tee (9) is welded to the outer end of the second pipe (4). The left end of the second connecting tee (9) is connected to a backwash inlet electric valve (10) through a flange. The right end of the second connecting tee (9) is connected to an outlet electric valve (11) through a flange.

2. The high-efficiency backwashing walnut shell filter according to claim 1, characterized in that: The filter (1) has a walnut shell filter material (12) installed and fixed inside the middle and lower part by screws. A backwash uniform water distribution cap (13) is placed below the bottom of the walnut shell filter material (12). The backwash uniform water distribution cap (13) is fixedly connected to the inner wall of the filter (1) by screws.

3. The high-efficiency backwashing walnut shell filter according to claim 2, characterized in that: A water inlet distribution plate (14) is placed on top of the walnut shell filter media (12), and the end of the water inlet distribution plate (14) is welded to the inner end of the first pipe (3).

4. The high-efficiency backwashing walnut shell filter according to claim 1, characterized in that: The end of the oil drain pipe (2) is connected to a valve via a thread.

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