A filter device for sewage treatment

Abstract

The utility model discloses a filter device for sewage treatment relates to sewage treatment technical field, and the device mainly comprises filter part, flocculation part and bottom plate, and filter part and flocculation part are all installed on the bottom plate. When working, sewage is primarily filtered through the filter part three layers of filter screen first, then enters the flocculation shell and mixes with the flocculant that is thrown from the feed port, is fully mixed by stirring shaft and produces the deposit, and then opens solenoid valve, and the sewage and the deposit enter flocculation filter shell and are filtered deeply through multilayer filter screen, and finally are discharged from the drain pipe. When cleaning the filter screen, only need to remove the filter bolt and filter plug, and the impurities are naturally dropped by virtue of the structural characteristics and gravity of the cone filter screen, and the operation is simple. The device can guarantee the continuity of sewage treatment, improve the water purification effect, and reduce the manpower and maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically a filtration device for wastewater treatment. Background Technology

[0002] With the acceleration of industrialization and the improvement of urbanization, the discharge of industrial wastewater and domestic sewage continues to increase, posing a serious threat to the ecological environment and water resource security. As a core link in water resource recycling and environmental protection, the efficiency and treatment effect of sewage treatment directly affect the regional water environment quality.

[0003] Currently, most mainstream wastewater treatment filtration technologies use flat or cylindrical filters. These filters have a simple structure and limited filtration area. Furthermore, wastewater is prone to localized blockages as it flows through them, leading to a significant decrease in filtration efficiency over time. This necessitates frequent shutdowns for cleaning, severely impacting the continuity of wastewater treatment. While some devices employ multiple layers of filters to improve filtration accuracy, these filters are often fixed installations, making disassembly difficult. Cleaning requires disassembling the entire device, which is cumbersome, consumes significant manpower, and can easily damage the filters during cleaning, increasing equipment maintenance costs. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides the following technical solution: a filtration device for wastewater treatment, comprising:

[0005] The filter section includes a filter mounting cylinder, inside which filter screen one, filter screen two, and filter screen three are detachably installed. Filter screen one, filter screen two, and filter screen three are provided with multiple filter holes on their outer walls. Filter plugs are detachably installed at the bottom of filter screen one, filter screen two, and filter screen three. The bottom of the filter plugs is detachably mounted on the filter mounting cylinder by filter bolts.

[0006] Furthermore, the top of the filter mounting cylinder is provided with a filter end cap that is removable by threads.

[0007] Furthermore, the bottom of the filter mounting cylinder is mounted on the flocculation section via a connecting pipe. The flocculation section includes a flocculation shell, which is mounted on the filter mounting cylinder via the connecting pipe. A flocculation inlet is provided at the top of the flocculation shell.

[0008] Furthermore, a flocculation stirring shaft is rotatably installed inside the flocculation shell, the flocculation stirring shaft is fixedly installed on the output shaft of the flocculation motor, and the flocculation motor is fixedly installed on the top of the flocculation shell.

[0009] Furthermore, the bottom of the flocculation shell is installed on the flocculation filter shell via a conduit, and a flocculation solenoid valve is installed on the conduit. Multiple flocculation filter screens are arranged sequentially from top to bottom inside the flocculation filter shell, and a flocculation drain pipe for drainage is installed at the bottom of the flocculation filter shell.

[0010] The advantages of this utility model compared with the prior art are:

[0011] 1. This utility model effectively improves filtration efficiency and the continuity of wastewater treatment: Compared with the problem of traditional filter devices having a single filter structure and being prone to local clogging, this device adopts a multi-layer conical filter design, which not only increases the filtration area and reduces local clogging when wastewater flows through, but also quickly intercepts larger impurities in wastewater through multi-layer graded filtration; at the same time, the cleaning process does not require frequent shutdowns to disassemble the main body of the device. The filter can be cleaned and quickly reset with simple operation, which greatly reduces downtime, ensures the continuity of wastewater treatment, and avoids a significant decrease in filtration efficiency over time.

[0012] 2. This utility model significantly simplifies filter cleaning operations and reduces labor and maintenance costs: Addressing the problems of traditional devices where multi-layered filters are difficult to install and disassemble, require significant effort to clean, and are prone to damage, this device features a detachable filter via a sliding groove. The bottom of the filter is equipped with a easily removable sealing structure. During cleaning, only the fixing components and sealing structure need to be removed. Utilizing the inverted cone structure of the filter, impurities can fall off naturally by gravity, eliminating the need for complex disassembly of the main body of the device. This saves considerable labor costs and avoids damage to the filter during cleaning, effectively reducing equipment maintenance costs.

[0013] 3. This utility model enhances wastewater treatment efficiency and achieves highly efficient water purification: Compared to the limitations of traditional devices with only a single filtration function, this device integrates preliminary filtration and flocculation filtration. Wastewater first undergoes preliminary impurity interception through multiple layers of filters, then enters the flocculation stage. A motor drives a stirring shaft to fully mix the flocculant with the wastewater, promoting impurity sedimentation. Subsequently, it passes through layers of flocculation filters, forming a complete treatment process of "preliminary filtration - flocculation sedimentation - deep filtration." This process can more comprehensively remove impurities and sediments from wastewater, significantly improving wastewater treatment efficiency, better ensuring effluent quality, and meeting the needs of water resource recycling and environmental protection. Attached Figure Description

[0014] Figure 1 Cross-sectional view of the overall structure of this utility model Figure 1 .

[0015] Figure 2 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 3 This is a partial structural cross-sectional view of the filter section of this utility model.

[0017] Figure 4 Cross-sectional view of the overall structure of this utility model Figure 2 .

[0018] Reference numerals: 1-Filter section; 2-Flocculation section; 3-Base plate; 101-Filter end cover; 102-Filter mounting cylinder; 103-Filter screen one; 104-Filter screen two; 105-Filter screen three; 106-Filter plug; 107-Filter bolt; 201-Flocculation motor; 202-Flocculation stirring shaft; 203-Flocculation feed inlet; 204-Flocculation solenoid valve; 205-Flocculation shell; 206-Flocculation filter shell; 207-Flocculation filter screen; 208-Flocculation drain pipe. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figures 1 to 4 As shown, a filtration device for wastewater treatment includes a filtration section 1, a flocculation section 2, and a base plate 3; both the filtration section 1 and the flocculation section 2 are disposed within the base plate 3.

[0021] like Figures 1 to 4 As shown, the filter section 1 includes a filter end cap 101, a filter mounting cylinder 102, a first filter screen 103, a second filter screen 104, a third filter screen 105, a filter plug 106, and a filter bolt 107. The first filter screen 103, the second filter screen 104, and the third filter screen 105 are detachably mounted inside the filter mounting cylinder 102 via a sliding groove. Each of the first filter screen 103, the second filter screen 104, and the third filter screen 105 is conical, and their outer walls are provided with multiple filter holes. The bottom of each of the first filter screen 103, the second filter screen 104, and the third filter screen 105 is detachably mounted with a filter plug 106, which is detachably mounted on the filter mounting cylinder 102 via a filter bolt 107. The filter end cap 101 is detachably mounted on the top of the filter mounting cylinder 102 via a thread.

[0022] like Figures 1 to 4As shown, the bottom of the filter mounting cylinder 102 is mounted on the flocculation section 2 via a connecting pipe. The flocculation section 2 includes a flocculation motor 201, a flocculation stirring shaft 202, a flocculation feed inlet 203, a flocculation solenoid valve 204, a flocculation shell 205, a flocculation filter shell 206, a flocculation filter screen 207, and a flocculation drain pipe 208. The flocculation shell 205 is mounted on the filter mounting cylinder 102 via a connecting pipe, and the flocculation feed inlet 203 is located at the top of the flocculation shell 205. The flocculation stirring shaft 202 is rotatably mounted inside the flocculation shell 205, and the flocculation stirring shaft 202 is fixedly mounted on the output shaft of the flocculation motor 201. The flocculation motor 201 is fixedly mounted at the top of the flocculation shell 205. The bottom of the flocculation shell 205 is installed on the flocculation filter shell 206 via a conduit. A flocculation solenoid valve 204 is installed on the conduit. Multiple flocculation filter screens 207 are arranged sequentially from top to bottom inside the flocculation filter shell 206. A flocculation drain pipe 208 for drainage is installed at the bottom of the flocculation filter shell 206.

[0023] like Figures 1 to 4 As shown, the working principle of the filtration device for sewage treatment disclosed in this utility model is as follows:

[0024] The sewage pipe is connected to the filter end cap 101, and the sewage flows into the filter installation cylinder 102. After passing through the filter holes on filter screen 103, filter screen 204, and filter screen 305, the sewage finally flows into the bottom of the filter installation cylinder 102, filtering out larger impurities in the sewage. The sewage after preliminary filtration flows into the flocculation shell 205. According to the sewage treatment requirements, the operator puts the flocculant into the flocculation shell 205 through the flocculation inlet 203 and turns on the flocculation motor 201. The flocculation motor 201 drives the flocculation stirring shaft 202 to rotate, so that the flocculant and the sewage in the flocculation shell 205 are fully mixed. The mixed sewage produces sediment under the action of the flocculant. Then, the flocculation solenoid valve 204 is turned on, and the sewage and sediment in the flocculation shell 205 flow into the flocculation filter shell 206. After passing through the layers of flocculation filter screen 207, the sewage is finally discharged from the flocculation drain pipe 208, completing the entire sewage filtration treatment.

[0025] When cleaning filter screen 103, filter screen 2 104, and filter screen 3 105, simply remove the filter bolt 107 from the filter mounting cylinder 102, and then remove the filter plug 106. Since filter screen 103, filter screen 2 104, and filter screen 3 105 are all inverted cones, the impurities inside will fall out from the opening at the bottom under the action of gravity, completing a quick cleaning. After cleaning, reset the filter plug 106, and the filtration operation can be carried out again.

Claims

1. A filtration device for wastewater treatment, characterized in that, include: The filter section (1) includes a filter mounting cylinder (102). Filter screen one (103), filter screen two (104), and filter screen three (105) are detachably installed inside the filter mounting cylinder (102). Filter screen one (103), filter screen two (104), and filter screen three (105) are provided with multiple filter holes on their outer walls. Filter plugs (106) are detachably installed at the bottom of filter screen one (103), filter screen two (104), and filter screen three (105). The bottom of filter plugs (106) is detachably installed on the filter mounting cylinder (102) by filter bolts (107).

2. The filtration device for wastewater treatment according to claim 1, characterized in that: The filter mounting cylinder (102) is provided with a filter end cap (101) on the top via a thread.

3. A filtration device for wastewater treatment according to claim 2, characterized in that: The bottom of the filter mounting cylinder (102) is mounted on the flocculation section (2) via a connecting pipe. The flocculation section (2) includes a flocculation shell (205), which is mounted on the filter mounting cylinder (102) via the connecting pipe. A flocculation inlet (203) is provided at the top of the flocculation shell (205).

4. A filtration device for wastewater treatment according to claim 3, characterized in that: A flocculation stirring shaft (202) is rotatably installed inside the flocculation shell (205). The flocculation stirring shaft (202) is fixedly installed on the output shaft of the flocculation motor (201). The flocculation motor (201) is fixedly installed on the top of the flocculation shell (205).

5. A filtration device for wastewater treatment according to claim 4, characterized in that: The bottom of the flocculation shell (205) is set on the flocculation filter shell (206) through a conduit. A flocculation solenoid valve (204) is set on the conduit. Multiple flocculation filter screens (207) are arranged from top to bottom inside the flocculation filter shell (206). A flocculation drain pipe (208) for drainage is set at the bottom of the flocculation filter shell (206).

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