Large load double chamber microfiltration sedimentation filter

Abstract

The present application relates to a large-load double-chamber microfiltration sedimentation filter, and relates to the technical field of filters, which includes a tank body, a water outlet pipe is provided at the top, a conical head is provided at the bottom, and a backwash drain pipe is provided at the bottom of the conical head; the conical head is also connected to a water inlet pipe; an upper filter screen is arranged at the inlet of the water outlet pipe of the tank body; a suspended filter material is arranged in a floating manner in the top area of ​​the tank body; a lower filter screen is arranged in the tank body, and separates the upper and lower spaces in the tank body, the upper part is a double-layer filtration area, and the lower part is a sedimentation area; the lower filter material is arranged on the upper side of the lower filter screen; a side-entry mixer is arranged on the side wall of the double-layer filtration area of ​​the tank body, and is used to stir the liquid in the double-layer filtration area; the connection between the water inlet pipe and the conical head is higher than the backwash drain pipe, so that a sludge sedimentation area is formed at the bottom of the conical head. The present application has the effect of enhancing the filter's ability to continuously filter water with a high content of suspended matter.

Description

Technical Field

[0001] The present application relates to the technical field of filters, and in particular to a heavy-load double-chamber microfiltration sedimentation filter. Background Art

[0002] The media filter is a high-efficiency filtration device that uses a specific filter medium to remove suspended solids, microorganisms, other fine particles, mechanical impurities, colloids, organic matter, and active chlorine in the water, ultimately achieving the effect of reducing water turbidity and purifying water quality. Depending on the needs, the media filter can use a single medium, such as quartz sand, activated carbon, anthracite, manganese sand, etc., or it can use multiple media, such as a deep-layer media filter, which is composed of more than one filter medium. This equipment is widely used in various industries such as agricultural irrigation, chemical industry, petroleum, and metallurgy.

[0003] At present, media filters have requirements for the suspension of incoming water, and the content of suspended solids cannot exceed the standard. When the content of suspended solids exceeds the standard, it will cause the media filter to backwash frequently, and the filter material will be frequently blocked. If it runs for a long time, the media filter may also be blocked, causing the filtration system to collapse. Therefore, high suspended solids have always been an important factor causing blockage and failure of traditional filters such as quartz sand filters, multi-media filters, and fiber filters, making it difficult for common filters to continuously filter water with high suspended solids content. Summary of the invention

[0004] In order to enhance the filter's ability to continuously filter water with a high suspended matter content, the present application provides a large-load dual-chamber microfiltration sedimentation filter.

[0005] The present application provides a large-load double-chamber microfiltration sedimentation filter adopts the following technical solution:

[0006] A heavy-load double-chamber microfiltration sedimentation filter, comprising:

[0007] The tank body has a water outlet pipe at the top and a conical head at the bottom. The bottom of the conical head is provided with a backwash drain pipe; the conical head is also connected to a water inlet pipe;

[0008] An upper filter screen is arranged at the inlet of the water outlet pipe of the tank body;

[0009] Suspended filter material, floatingly arranged in the top area of ​​the tank;

[0010] The lower filter is arranged in the tank body to separate the upper and lower spaces in the tank body, the upper part is a double-layer filtration area, and the lower part is a sedimentation area;

[0011] The lower filter material is arranged on the upper side of the lower filter screen;

[0012] A side-entry agitator is arranged on the side wall of the double-layer filtration area of ​​the tank body and is used to stir the liquid in the double-layer filtration area;

[0013] The connection point between the water inlet pipe and the conical end cap is higher than the backwash drain pipe, so that a sludge sedimentation area is formed at the bottom of the conical end cap.

[0014] By adopting the above technical scheme, the tank body has a bottom water inlet and top water outlet structure, the lower part of the lower filter screen is used to settle debris, and the upper part is used to filter the water twice, the lower filter material is used for initial interception, and certain obstacles are set for suspended matter, so that some of the suspended matter can be adsorbed and chelated with each other, and precipitated or slowly settled. The suspended filter material automatically forms a filter bed under the buoyancy of water, which is used to intercept suspended matter escaping through the initial filter bed, most of which are light biological slime, colloids, algae, fine particle crystals, mud, dust, etc. in the water. The conical head facilitates the accumulation of heavy suspended matter sludge in the sludge sedimentation area, which is convenient for discharging debris during backwashing. The side-entry mixer adopts a side stirring and cleaning method, which can make the suspended filter material and the lower filter material be cleaned more fully, improve the backwashing effect, enhance the ability of the filter to continuously filter water with a high suspended matter content, and improve the interception effect of the filter.

[0015] Optionally, the lower filter screen includes a ring plate fixedly connected to the inner wall of the tank body and a mesh body connected to the ring plate, and the height of the ring plate gradually decreases along the direction toward the central axis of the tank body.

[0016] By adopting the above technical solution, the lower filter material will be concentrated above the lower filter screen due to gravity, and the flushing water can be concentrated and guided to the screen body during backwashing, thereby improving the cleaning effect of the lower filter material.

[0017] Optionally, the filter further comprises a water homogenizer arranged below the lower filter screen, the water homogenizer is in a frustum shape, and the top diameter is smaller than the bottom diameter.

[0018] By adopting the above technical solution, the water homogenizer can make the water flow more evenly when passing through the lower filter screen, and can also assist sedimentation by relying on the principle of a shallow pool, while facilitating sewage discharge during backwashing.

[0019] Optionally, the upper filter screen is cylindrical with one end open, and the opening faces the water inlet pipe.

[0020] By adopting the above technical solution, the filtering area of ​​the upper filter screen can be increased and the water passing efficiency can be improved.

[0021] Optionally, the suspended filter material is a microfiltration membrane suspended particle filter material with a density of 0.9g / cm³-0.95g / cm³, a particle size of 5mm×5mm×3mm, a microfiltration pore diameter of 1μm-60μm, and a filter bed thickness of 800mm-1000mm.

[0022] By adopting the above technical scheme, the suspended filter material automatically forms a filter bed under the buoyancy of water, which is used to intercept suspended matter escaping through the initial filter bed, most of which are lightweight biological slime, colloids, algae, fine particle crystals, silt, dust, etc. in the water. The density of the suspended filter material is close to that of water, and it is cleaned more thoroughly when stirred. At the same time, the filter material has hydrophobic and oleophilic properties, and can have a strong oil removal effect on floating oil.

[0023] Optionally, the lower filter material is a microfiltration membrane particle filter material with a density of 1.05g / cm³-1.15g / cm³, a particle size of 8mm×8mm×6mm, a microfiltration pore diameter of 1μm-60μm, and a filter bed thickness of 100mm-200mm.

[0024] By adopting the above technical scheme, the lower filter material is used for initial interception, setting certain obstacles for suspended matter, allowing some of the suspended matter to adsorb and chelate with each other, precipitate or slowly sink. The density of the lower filter material is close to that of water, and it is cleaned more thoroughly during stirring. At the same time, the filter material has hydrophobic and lipophilic properties, and can have a strong oil removal effect on floating oil.

[0025] Optionally, the filter further comprises a sludge scraping assembly for scraping sludge in the conical head;

[0026] The water inlet pipe is slidably connected with a telescopic pipe, and a non-return cover is hinged at the upper opening of the telescopic pipe. The non-return cover allows the liquid in the water inlet pipe to flow only in the direction of flowing into the tank body. When the telescopic pipe is retracted in the water inlet pipe, the top of the non-return cover is flush with the inner surface of the conical head. A flow ring is provided in the telescopic pipe, so that when the liquid flows into the tank body, the telescopic pipe is pushed into the tank body.

[0027] The water inlet pipe is provided with a pressure relief pipe.

[0028] By adopting the above technical scheme, the scraper assembly can scrape off the sludge attached to the inner wall of the conical head. During backwashing before the scraping operation, the flushing water will close the check cover, and the pressure relief pipe will discharge the water in the water inlet pipe. The check cover will shrink into the water inlet pipe together with the telescopic pipe under the pressure of the flushing water. The check cover is flush with the inner wall of the conical head and will not affect the operation of the scraper assembly. At the same time, the sludge will not enter the water inlet pipe, thereby improving the cleaning effect of the backwashing.

[0029] Optionally, the scraper assembly includes:

[0030] The crown gear ring is coaxially rotatably connected to the inner wall of the tank body;

[0031] A gear, rotatably disposed in the tank body and meshing with the crown gear ring;

[0032] The mud scraping motor is arranged on the outer wall of the tank body, and the output shaft is connected to the gear;

[0033] The scraper is connected to the bottom end of the crown gear ring and abuts against the inner surface of the conical head.

[0034] By adopting the above technical solution, the scraper motor can drive the gear to rotate, the gear drives the crown gear ring to rotate, and the scraper plate can rotate synchronously to scrape the sludge in the conical head.

[0035] Optionally, the projection of the scraper blade in the vertical direction is vortex-shaped.

[0036] By adopting the above technical solution, the vortex-shaped scraper blade can push the scraped sludge to the sludge sedimentation area, thereby facilitating the discharge of the sludge.

[0037] Optionally, the scraper assembly further comprises an anti-fouling cover fixedly connected to the inner wall of the tank body, the anti-fouling cover being rotatably sealedly connected to the crown gear ring so that the gear and the top teeth of the crown gear ring are isolated from the liquid in the tank body.

[0038] By adopting the above technical solution, the anti-fouling cover can prevent the debris in the water from contacting and adhering to the teeth of the gear and the crown ring, so that the mud scraper assembly can maintain a normal operating state.

[0039] In summary, the present application includes at least one of the following beneficial technical effects:

[0040] 1. The tank body is a bottom-inlet and top-outlet structure. The lower part of the lower filter screen is used to settle debris, and the upper part is used to filter the water twice. The lower filter material is used for initial interception, setting certain obstacles for suspended matter, so that some of the suspended matter can be adsorbed and chelated with each other, and precipitated or slowly settled. The suspended filter material automatically forms a filter bed under the buoyancy of water, which is used to intercept suspended matter escaping through the initial filter bed. Most of them are light biological slime, colloids, algae, fine particle crystals, silt, dust, etc. in the water. The conical head facilitates the accumulation of heavy suspended matter sludge in the sludge sedimentation area, which is convenient for discharging debris during backwashing. The side-entry mixer is a side-stirring and cleaning method, which can make the suspended filter material and the lower filter material be cleaned more fully, improve the backwashing effect, enhance the filter's ability to continuously filter water with high suspended matter content, and improve the filter's interception effect;

[0041] 2. The water homogenizer can make the water flow more evenly when passing through the lower filter screen, and can also assist sedimentation by the principle of shallow pool, and facilitate sewage discharge during backwashing;

[0042] 3. The scraper assembly can scrape off the sludge attached to the inner wall of the conical head. During backwashing before the scraper operation, the flushing water will close the check cover, and the pressure relief pipe will discharge the water in the water inlet pipe. Under the pressure of the flushing water, the check cover will shrink into the water inlet pipe together with the telescopic pipe. The check cover is flush with the inner wall of the conical head, which will not affect the work of the scraper assembly. At the same time, the sludge will not enter the water inlet pipe, which improves the cleaning effect of backwashing;

[0043] 4. The anti-fouling cover can prevent the debris in the water from contacting and adhering to the teeth of the gear and the crown ring, so that the mud scraper assembly can maintain normal operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application;

[0045] Figure 2 is a cross-sectional view of Example 1 of the present application;

[0046] Figure 3 is a partial cross-sectional view of Example 2 of the present application;

[0047] Figure 4 yes Figure 3 A partial enlarged view of the middle A part;

[0048] Figure 5 This is a schematic diagram of the bottom structure of the tank body according to Example 2 of the present application;

[0049] In the figure, 100, double-layer filtration area; 200, sedimentation area; 201, sludge sedimentation area; 1, tank body; 11, outlet pipe; 12, conical head; 13, backwash drain pipe; 14, inlet pipe; 141, pressure relief pipe; 15, telescopic pipe; 151, flow bearing ring; 16, check cover; 17, manhole door; 2, upper filter screen; 3, suspended filter material; 4, lower filter screen; 41, ring plate; 142, limit ring; 42, mesh body; 5, lower filter material; 6, side-entry mixer; 7, water homogenizer; 8, mud scraper assembly; 81, crown gear ring; 82, gear; 83, mud scraper motor; 84, mud scraper plate; 85, anti-fouling cover. DETAILED DESCRIPTION

[0050] The application fields of the filter in this application include semiconductor chip production wastewater, photovoltaic silicon material production wastewater treatment, new energy hydrogen production wastewater, industrial circulating water, coking wastewater, wastewater zero discharge pretreatment, pre-membrane wastewater treatment and other fields. Figure 1 -Attached Figure 5 , further details of this application are given. Example 1

[0051] Example 1 of the present application proposes a large-load double-chamber microfiltration sedimentation filter, referring to Figure 1 and Figure 2, including a tank body 1, an upper filter screen 2, a suspended filter material 3, a lower filter screen 4, a lower filter material 5, a side-entry mixer 6 and a water homogenizer 7. A water inlet pipe 14 and a backwash drain pipe 13 are provided at the bottom of the tank body 1, and a water outlet pipe 11 is provided at the top. The upper filter screen 2 is connected to the inlet of the water outlet pipe 11 in the tank body 1. The suspended filter material 3 floats on the top of the tank body 1 and the outside of the upper filter screen 2. The lower filter screen 4 is arranged on the inner wall of the tank body 1 to separate the upper and lower areas. The lower filter material 5 is arranged above the lower filter screen 4. The side-entry mixer 6 is arranged between the upper filter screen 2 and the lower filter screen 4. The water homogenizer 7 is arranged below the lower filter screen 4.

[0052] The tank body 1 is a structure with water inlet at the bottom and water outlet at the top. The lower part of the lower filter screen 4 is a sedimentation area 200 for settling debris, and the upper part is a double-layer filter area 100 for filtering water twice. The area of ​​about 1 / 2 to 2 / 3 of the lower part of the tank body 1 is the sedimentation area 200. The lower filter material 5 is used for initial interception, setting certain obstacles for suspended matter, so that some of the suspended matter therein can be mutually adsorbed and chelated, precipitated or slowly settled. The suspended filter material 3 automatically forms a filter bed under the buoyancy of water, which is used to intercept suspended matter escaping through the initial filter bed. The side-entry mixer 6 is a side stirring and cleaning method, which can make the suspended filter material 3 and the lower filter material 5 be cleaned more fully, improve the backwashing effect, enhance the filter's ability to continuously filter water with a high content of suspended matter, and improve the filter's interception effect. A manhole door 17 is also provided on the side wall of the tank body 1 corresponding to the sedimentation area 200 and the double-layer filter area 100 for staff to enter for maintenance.

[0053] The tank body 1 is vertical, with an elliptical head at the top and a conical head 12 at the bottom. A water outlet pipe 11 is provided at the top of the tank body 1, and a backwash drain pipe 13 is provided at the bottom of the conical head 12. A water inlet pipe 14 is also obliquely connected to the conical head 12. The height of the connection between the water inlet pipe 14 and the conical head 12 is higher than the height of the backwash drain pipe 13. A sludge sedimentation area 201 is formed at the bottom of the conical head 12. The conical head 12 facilitates the accumulation of heavy suspended sludge in the sludge sedimentation area 201, which is convenient for discharging debris during backwashing. The water inlet pipe 14 penetrates into the tank body 1 and extends to the central axis of the tank body 1.

[0054] The lower filter screen 4 includes a ring plate 41 and a mesh body 42. The ring plate 41 is an inverted cone-shaped ring plate with a through hole formed at the bottom center. The mesh body 42 is welded to the inner wall of the through hole. The lower filter material 5 is arranged on the lower filter screen 4, and is evenly spread out by its own gravity and the buoyancy of water to form an initial filter bed. The lower filter material 5 adopts microfiltration membrane particle filter material with a density of 1.05g / cm³-1.15g / cm³, a particle size of 8mm×8mm×6mm, a microfiltration pore diameter of 1μm-60μm, and a filter bed thickness of 100mm-200mm. The lower filter material 5 is used for initial interception, setting certain obstacles for suspended matter, allowing some of the suspended matter to be mutually adsorbed and chelated, precipitated or slowly settled. The density of the lower filter material 5 is close to that of water, and it is cleaned more thoroughly when stirred. At the same time, the filter material has the characteristics of hydrophobicity and lipophilicity, and can have a strong degreasing effect on floating oil. The lower filter material 5 will be concentrated above the mesh body 42 due to gravity, and the ring plate 41 can guide the flushing water to the mesh body 42 during backwashing, thereby improving the cleaning effect of the lower filter material 5.

[0055] The upper filter screen 2 is a cylindrical filter screen with an opening at the top, which is covered at the entrance of the water outlet pipe 11 and welded to the inner wall of the tank body 1. The suspended filter material 3 floats on the top of the tank body 1, around the upper filter screen 2. The suspended filter material 3 is a suspended particle filter material of a microfiltration membrane, with a density of 0.9g / cm³-0.95g / cm³, a particle size of 5mm×5mm×3mm, a microfiltration pore diameter of 1μm-60μm, and a filter bed thickness of 800mm-1000mm. The suspended filter material 3 automatically forms a filter bed under the buoyancy of water, which is used to intercept suspended matter escaping through the initial filter bed, most of which are light biological slime, colloids, algae, fine particle crystals, silt, dust, etc. in the water. The density of the suspended filter material 3 is close to that of water, and it is cleaned more thoroughly when stirred. At the same time, the filter material has the characteristics of hydrophobicity and lipophilicity, and can have a strong degreasing effect on floating oil.

[0056] The water homogenizer 7 is a truncated cone, the cross-sectional diameter gradually increases from top to bottom, and the bottom end is open. The water homogenizer 7 is welded to the bottom end of the lower filter screen 4 through four suspension rods, and is vertically opposite to the mesh body 42. The water homogenizer 7 can make the water flow more evenly when passing through the lower filter screen 4, and can also play a role in assisting sedimentation by relying on the principle of a shallow pool, and is convenient for sewage discharge during backwashing.

[0057] The lower sedimentation area 200 can also be equipped with inclined pipes, filter plates and other measures to perform forced sedimentation and enhance the sedimentation effect according to different working conditions.

[0058] The filtering principle of Example 1 of the present application is: water enters the tank body 1 from the water inlet pipe 14, passes through the lower filter screen 4, is filtered by the lower filter material 5 and the upper filter material respectively, enters the water outlet pipe 11 through the upper filter screen 2, and is transported to the user end or discharged. The filter can operate for a long time under the condition of 100-500 mg / L of suspended solids in the inlet water.

[0059] The backwashing principle of Example 1 of the present application is: backwashing water is introduced into the tank body 1 from the outlet pipe 11, and the side-entry mixer 6 is started. The side-entry mixer 6 can stir the liquid in the double-layer filtration area 100 to turn over the suspended filter material 3 and the lower filter material 5, thereby realizing the cleaning and regeneration of the suspended filter material 3 and the lower filter material 5. Example 2

[0060] Example 2 of the present application proposes a large-load double-chamber microfiltration sedimentation filter, referring to Figure 3-Figure 5 The difference from Example 1 lies in the structure of the bottom water inlet pipe 14 , and a sludge scraping assembly 8 for scraping sludge off the inner wall of the conical head 12 is provided.

[0061] Reference Figure 3 and Figure 4 The water inlet pipe 14 is connected to the side wall of the conical head 12 and communicates with the inside of the tank body 1. A telescopic pipe 15 is slidably connected inside the water inlet pipe 14, and a slider is provided on the telescopic pipe 15. The inner wall of the water inlet pipe 14 is provided with a slide groove for the slider to slide. A limit ring 142 is welded on the inner wall of the water inlet pipe 14. When the telescopic pipe 15 abuts against the limit ring 142, the telescopic pipe 15 is completely received in the water inlet pipe 14. A flow receiving ring 151 is provided on the inner wall of the top end of the telescopic pipe 15. After water is passed into the water inlet pipe 14, the water flow will impact the flow receiving ring 151 to push the telescopic pipe 15 into the tank body 1, and the telescopic pipe 15 can automatically extend into the tank body 1. A check cover 16 is hinged at the top end of the telescopic pipe 15. The check cover 16 can remain open when the water in the water inlet pipe 14 flows into the tank body 1. During backwashing, the backwashing water will impact the check cover 16 to close the check cover 16. When the telescopic tube 15 is completely retracted into the water inlet pipe 14, the check cover 16 closes and seals the upper pipe opening of the telescopic tube 15, and the top end of the check cover 16 is flush with the inner wall of the conical head 12, so that the scraping assembly 8 can perform the scraping operation.

[0062] The water inlet pipe 14 is also provided with a pressure relief pipe 141 for draining the water from the telescopic pipe 15 during backwashing, so that the telescopic pipe 15 can be more easily retracted into the water inlet pipe 14 .

[0063] Reference Figure 3 and Figure 5The scraper assembly 8 includes a crown gear ring 81, a gear 82, a scraper motor 83, a scraper blade 84 and an anti-fouling cover 85. The crown gear ring 81 is coaxially connected to the inner wall of the tank body 1, with the teeth facing upward. Two scraper blades 84 are provided, which are symmetrically welded to the bottom end of the crown gear ring 81 about the central axis of the crown gear ring 81, and abut against the inner wall of the conical head 12 to scrape away sludge. The projection of the scraper blade 84 in the vertical direction is vortex-shaped, which can more smoothly push the scraped sludge to the sludge sedimentation area 201. A bracket is provided on the outer wall of the tank body 1, and the scraper motor 83 is connected to the outer wall of the tank body 1 through the bracket bolts. The output shaft penetrates into the tank body 1 and is keyed with a gear 82, and the gear 82 is meshed with the crown gear ring 81. The scraper motor 83 drives the gear 82 to rotate, and the gear 82 drives the crown gear ring 81 to rotate, so that the rotating scraping operation of the scraper blade 84 can be realized. An anti-fouling cover 85 is welded on the inner wall of the tank body 1. The anti-fouling cover 85 is arranged outside the teeth of the gear 82 and the crown gear ring 81, and is rotatably sealed and connected to the inner wall of the crown gear ring 81, so that the teeth of the gear 82 and the crown gear ring 81 are not easily contacted with sludge, and the sludge scraper assembly 8 can remain in a working state for a long time.

[0064] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A heavy-duty double-chamber microfiltration sedimentation filter, characterized in that: include: The tank body (1) is provided with a water outlet pipe (11) at the top end and a conical end cap (12) at the bottom end. A backwash drain pipe (13) is provided at the bottom end of the conical end cap (12). The conical end cap (12) is also connected to a water inlet pipe (14). An upper filter screen (2) is arranged at the inlet of the water outlet pipe (11) of the tank body (1); A suspended filter material (3) is arranged to float in the top area of ​​the tank body (1); A lower filter screen (4) is arranged in the tank body (1) to separate the upper and lower spaces in the tank body (1), wherein the upper portion is a double-layer filtering area (100) and the lower portion is a sedimentation area (200); A lower filter material (5) is arranged on the upper side of the lower filter screen (4); A side-entry stirrer (6) is arranged on the side wall of the double-layer filter area (100) of the tank body (1) and is used to stir the liquid in the double-layer filter area (100); The connection point between the water inlet pipe (14) and the conical seal head (12) is higher than the backwash drain pipe (13), so that a sludge sedimentation area (201) is formed at the bottom of the conical seal head (12); A sludge scraping assembly (8) for scraping away sludge in the conical head (12); A telescopic tube (15) is slidably connected inside the water inlet pipe (14), and a check cover (16) is hingedly connected to the upper opening of the telescopic tube (15). The check cover (16) allows the liquid in the water inlet pipe (14) to flow only in the direction of flowing into the tank body (1). When the telescopic tube (15) is retracted inside the water inlet pipe (14), the top end of the check cover (16) is flush with the inner surface of the conical head (12); a flow receiving ring (151) is provided inside the telescopic tube (15), so that when the liquid flows into the tank body (1), the telescopic tube (15) is pushed to penetrate into the tank body (1); The water inlet pipe (14) is provided with a pressure relief pipe (141).

2. The heavy-duty double-chamber microfiltration sedimentation filter according to claim 1, characterized in that: The lower filter screen (4) comprises a ring plate (41) fixedly connected to the inner wall of the tank body (1) and a mesh body (42) connected inside the ring plate (41), wherein the height of the ring plate (41) gradually decreases in a direction toward the central axis of the tank body (1).

3. The heavy-duty double-chamber microfiltration sedimentation filter according to claim 1 is characterized in that: It also includes a water homogenizer (7) arranged below the lower filter screen (4); the water homogenizer (7) is in the shape of a truncated cone, and the top diameter is smaller than the bottom diameter.

4. The heavy-duty double-chamber microfiltration sedimentation filter according to claim 1, characterized in that: The upper filter screen (2) is in the shape of a cylinder with one end open, the opening facing the water inlet pipe (14).

5. The heavy-duty double-chamber microfiltration sedimentation filter according to claim 1, characterized in that: The suspended filter material (3) is a microfiltration membrane suspended particle filter material, with a density of 0.9 g / cm³-0.95 g / cm³, a particle size of 5 mm×5 mm×3 mm, a microfiltration pore diameter of 1 μm-60 μm, and a filter bed thickness of 800 mm-1000 mm.

6. The heavy-duty double-chamber microfiltration sedimentation filter according to claim 1, characterized in that: The lower filter material (5) is a microfiltration membrane particle filter material with a density of 1.05 g / cm³-1.15 g / cm³, a particle size of 8 mm×8 mm×6 mm, a microfiltration pore diameter of 1 μm-60 μm, and a filter bed thickness of 100 mm-200 mm.

7. The heavy-duty double-chamber microfiltration sedimentation filter according to claim 1, characterized in that: The mud scraping assembly (8) comprises: A crown gear ring (81) is coaxially rotatably connected to the inner wall of the tank body (1); A gear (82) rotatably disposed in the tank body (1) and meshing with the crown gear ring (81); A mud scraping motor (83) is arranged on the outer wall of the tank body (1), and the output shaft is connected to the gear (82); The scraper plate (84) is connected to the bottom end of the crown gear ring (81) and abuts against the inner surface of the conical head (12).

8. The heavy-duty double-chamber microfiltration sedimentation filter according to claim 7, characterized in that: The projection of the scraper blade (84) in the vertical direction is vortex-shaped.

9. The heavy-duty double-chamber microfiltration sedimentation filter according to claim 7, characterized in that: The mud scraping assembly (8) further comprises an anti-fouling cover (85) fixedly connected to the inner wall of the tank body (1), the anti-fouling cover (85) being rotatably sealedly connected to the crown gear ring (81), so that the top teeth of the gear (82) and the crown gear ring (81) are isolated from the liquid in the tank body (1).

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