Flat screen filtering equipment

Abstract

The utility model discloses flat screen filtering equipment which comprises a water tank, a support frame, an elastic piece, a connecting frame, a flat screen disc and a vibration unit, a feeding joint is arranged at the top of one end of the water tank; the supporting frames are fixedly installed on the side wall of the water pool, the elastic pieces are fixedly installed on the tops of the supporting frames, the connecting frame is fixedly installed on the tops of the elastic pieces, and the flat screen disc is hung at the bottom of the connecting frame. A plurality of draining holes are uniformly formed in the bottom of the flat sieve tray; the vibrating unit obliquely vibrates, and the elastic piece amplifies the vibration, so that sewage is horizontally and longitudinally vibrated after entering the flat screen tray, water passes through the draining holes, and stains and sludge are always adhered to the flat screen tray due to high viscosity, are separated from the water under the horizontal vibration of the flat screen tray and continue to move forwards; the water draining holes are prevented from being blocked through vibration, the water filtering efficiency is continuously kept, and therefore energy consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the field of sewage filtration equipment, and particularly relates to a flat screen filtration equipment. Background Art

[0002] Filtration equipment is widely used and essential in sewage treatment. For example, microfiltration machines are used to filter fecal sewage and feed residues in aquaculture, while solid-liquid separators are necessary for domestic sewage, livestock wastewater, and industrial wastewater. The main purpose of using filtration equipment in the sewage treatment process of all industries is to filter out solid substances and suspended matters in the wastewater to the greatest extent. However, there are some deficiencies in the existing technology equipment. For example, during the filtration process of the microfiltration machine in recirculating aquaculture, backwashing must be carried out regularly. During the backwashing process, not only is water wasted, but also the amount of wastewater backwashed is very large, and these wastewaters need to be further treated. The filtration of this microfiltration machine cannot achieve continuous filtration, and at the same time, the energy consumption is relatively large. The filtration effect of the solid-liquid separator used in the treatment and filtration of domestic sewage, livestock wastewater, and industrial wastewater is not good, and the filter screen is too large. Currently, the unified mesh diameter of the filter screen in China is 200 mm. Since the content of solid substances in the effluent after filtration is relatively large, the subsequent treatment investment increases accordingly. At the same time, a large amount of sludge in domestic sewage treatment in China must be flocculated with chemical agents and then removed by squeezing through a spiral press or a filter press. The input of a large amount of chemical agents not only generates a large amount of special sludge that needs to be professionally treated again, but also greatly increases the cost in sewage treatment. Therefore, the deficiencies of the existing microfiltration machine and solid-liquid separator in the application of the sewage treatment industry are prominent, such as being prone to blockage, high energy consumption, high investment, high overall project treatment cost, inability to achieve intelligent management, etc., which have a great impact on the sustainable development of various industries. Content of the Utility Model

[0003] In view of this, the purpose of the utility model is to provide a flat screen filtration equipment to solve the above problems.

[0004] To solve the above technical problems, the technical solution of the utility model is: a flat screen filtration equipment, including a water tank, a support frame, an elastic member, a connecting frame, a flat screen plate, and a vibration unit; a feed joint is arranged at the top of one end of the water tank, and a drain outlet is arranged inside the water tank; several support frames are provided and fixedly installed on the side wall of the water tank, the elastic member is fixedly installed on the top of the support frame, the connecting frame is fixedly installed on the top of the elastic member, the flat screen plate is hoisted at the bottom of the connecting frame, the vibration unit is fixedly installed inside the flat screen plate, and there is an included angle a between the vibration direction of the vibration unit and the horizontal plane; a plurality of water drainage holes are evenly opened at the bottom of the flat screen plate.

[0005] Preferably, a connecting plate is arranged on the side surface of the water tank, and the connecting plate is located between the feed joint and the flat screen plate.

[0006] Preferably, the flat sieve tray includes side plates arranged in parallel, a bottom plate disposed between the side plates, a sludge outlet provided at one end of the flat sieve tray, and a connecting plate provided at the other end of the flat sieve tray; the water drainage holes are uniformly formed in the bottom plate.

[0007] Preferably, the bottom plate includes a first flat plate, a first inclined plate, and a second inclined plate; the first inclined plate and the second inclined plate are respectively fixedly connected to both sides of the first flat plate; the included angle between the first inclined plate and the horizontal plane is b, and the included angle between the second inclined plate and the horizontal plane is c.

[0008] Preferably, a filter screen is further laid on the inner bottom of the flat sieve tray.

[0009] Preferably, the elastic member is a spring.

[0010] Preferably, the vibration unit is a vibration motor.

[0011] The technical effects of the present utility model are mainly reflected as follows: through the inclined vibration of the vibration unit, the flat sieve tray utilizes the elastic member to amplify the vibration effect, so that the sewage is continuously and repeatedly thrown into the air horizontally and longitudinally after entering the flat sieve tray from the feed joint, thereby realizing that the water in the sewage is more likely to pass through the water drainage holes. The stains and sludge in the sewage, due to their high viscosity, always adhere to the flat sieve tray and are separated from the water and continue to move forward under the horizontal vibration of the flat sieve tray; and the stains and sludge blocking the water drainage holes are separated from the water drainage holes under the action of vibration, thus avoiding the blockage of the water drainage holes, continuously maintaining the water filtration efficiency, and reducing the energy consumption. Description of the Drawings

[0012] Figure 1 is a perspective view of the present utility model;

[0013] Figure 2 is a perspective view of the water tank;

[0014] Figure 3 is a perspective view of the flat sieve tray;

[0015] Figure 4 is for Figure 1 side view of.

[0016] The reference numerals in the drawings are: 1 - water tank, 11 - feed joint, 12 - drain outlet, 13 - connecting plate, 2 - support frame, 3 - elastic member, 4 - connecting frame, 5 - flat sieve tray, 51 - water drainage hole, 52 - side plate, 53 - bottom plate, 531 - first flat plate, 532 - first inclined plate, 533 - second inclined plate, 54 - sludge outlet, 55 - connecting plate, 6 - vibration unit, 7 - filter screen. Detailed Embodiments

[0017] The following further details the specific embodiments of the present utility model in conjunction with the accompanying drawings, so that the technical solutions of the present utility model are easier to understand and master.

[0018] In this embodiment, it should be understood that the orientation or positional relationships indicated by terms such as "middle", "upper", "lower", "top", "right side", "left end", "above", "back", "middle", etc. are based on the orientation or positional relationships shown in the accompanying drawings. These are only for the convenience of describing the present invention and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0019] In addition, in this specific embodiment, if the connection or fixing method between components is not specifically stated, the connection or fixing method can be bolt fixing or pin fixing commonly used in the prior art, or pin shaft connection and other methods. Therefore, it will not be elaborated in this embodiment.

[0020] The present utility model provides a flat screen filtering device, as Figures 1-4 shown, including a water tank 1, a support frame 2, an elastic member 3, a connecting frame 4, a flat screen plate 5, and a vibration unit 6; a feed joint 11 is provided at the top of one end of the water tank 1 for introducing sewage into the device, and a drain outlet 12 is provided inside the water tank 1 for discharging the filtered water resources from the drain outlet 12 for secondary use; several support frames 2 are provided and fixedly installed on the side wall of the water tank 1, the elastic member 3 is fixedly installed on the top of the support frame 2, the connecting frame 4 is fixedly installed on the top of the elastic member 3, the flat screen plate 5 is hoisted at the bottom of the connecting frame 4, the vibration unit 6 is fixedly installed inside the flat screen plate 5 and there is an included angle a between the vibration direction of the vibration unit 6 and the horizontal plane; a plurality of water drainage holes 51 are evenly opened at the bottom of the flat screen plate 5. Through the inclined vibration of the vibration unit 6, the flat screen plate 5 utilizes the elastic member 3 to amplify the vibration effect, so that the sewage, after entering the flat screen plate 5 from the feed joint 11, is continuously and repeatedly thrown into the air horizontally and longitudinally, thereby making it easier for the water in the sewage to pass through the water drainage holes 51. The stains and sludge in the sewage, due to high viscosity, always adhere to the flat screen plate 5 and are separated from the water and continue to move forward under the horizontal vibration of the flat screen plate 5; and the stains and sludge blocking the water drainage holes 51 are separated from the water drainage holes 51 under the action of vibration, thus avoiding the blockage of the water drainage holes 51, continuously maintaining the water filtering efficiency, and thereby reducing energy consumption.

[0021] Preferably, a connecting plate 55 is provided on the side surface of the water tank 1, and the connecting plate 55 is located between the feed joint 11 and the flat screen plate 5 for guiding the sewage in the feed joint 11 into the flat screen plate 5.

[0022] Preferably, the flat sieve tray 5 includes side plates 52 arranged in parallel, a bottom plate 53 arranged between the side plates 52, a sludge outlet 54 arranged at one end of the flat sieve tray 5, and a connecting plate 55 arranged at the other end of the flat sieve tray 5; the water drainage holes 51 are evenly formed in the bottom plate 53; after sewage enters the flat sieve tray 5, the water in the sewage enters the water tank 1 through the water filtering holes in the bottom plate 53 under the action of vibration, and the remaining stains and sludge are discharged from the sludge outlet 54 and collected together.

[0023] Preferably, the bottom plate 53 includes a first flat plate 531, a first inclined plate 532 and a second inclined plate 533; the first inclined plate 532 and the second inclined plate 533 are respectively fixedly connected to both sides of the first flat plate 531; the included angle between the first inclined plate 532 and the horizontal plane is b, and the included angle between the second inclined plate 533 and the horizontal plane is c. In this embodiment, the first inclined plate 532 is close to the sludge outlet 54, and the second inclined plate 533 is far from the sludge outlet 54; since the overall vibration of the flat sieve tray 5 includes horizontal vibration and also longitudinal movement, the second inclined plate 533 and the first inclined plate 532 are inclined, so that when the first inclined plate 532 and the second inclined plate 533 vibrate, the sewage is subjected to a resultant force towards the first flat plate 531, so that the water in the sewage is thrown towards the first flat plate 531, and the stains and sludge in the sewage are discharged from the sludge outlet 54 due to high viscosity and continuous accumulation.

[0024] Preferably, a filter screen 7 is further laid on the inner bottom of the flat sieve tray 5 for filtering smaller stains and sludge. Preferably, the elastic member 3 is a spring. Preferably, the vibration unit 6 is a vibration motor.

[0025] The technical effect of the present utility model is mainly reflected in that: through the inclined vibration of the vibration unit, the flat sieve tray utilizes the elastic member to amplify the vibration effect, so that the sewage is continuously and repeatedly thrown into the air horizontally and longitudinally after entering the flat sieve tray from the feed joint, so as to make the water in the sewage more easily pass through the water drainage holes, and the stains and sludge in the sewage, due to high viscosity, always adhere to the flat sieve tray, and are separated from the water and continue to move forward under the horizontal vibration of the flat sieve tray; and the stains and sludge blocking the water drainage holes are separated from the water drainage holes under the action of vibration, so as to avoid the blockage of the water drainage holes, continuously maintain the water filtering efficiency, and thus reduce the energy consumption.

[0026] Of course, the above are only typical examples of the present utility model. In addition, the present utility model can also have other various specific implementation manners. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present utility model.

Claims

1. A flat screen filtering device, characterized in that, It includes a water tank, a support frame, an elastic member, a connecting frame, a flat sieve plate, and a vibration unit; a feed joint is provided at the top of one end of the water tank, and a drain port is provided inside the water tank; several support frames are provided and fixedly installed on the side wall of the water tank, the elastic member is fixedly installed on the top of the support frame, the connecting frame is fixedly installed on the top of the elastic member, the flat sieve plate is hoisted at the bottom of the connecting frame, the vibration unit is fixedly installed inside the flat sieve plate and there is an included angle a between the vibration direction of the vibration unit and the horizontal plane; a number of water drainage holes are evenly formed at the bottom of the flat sieve plate.

2. The flat screen filtering device according to claim 1, characterized in that, A connecting plate is provided on the side surface of the water tank, and the connecting plate is located between the feed joint and the flat sieve plate.

3. The flat screen filtering device according to claim 1, characterized in that, The flat sieve plate includes side plates arranged in parallel, a bottom plate arranged between the side plates, a mud outlet arranged at one end of the flat sieve plate, and a connecting plate arranged at the other end of the flat sieve plate; the water drainage holes are evenly formed on the bottom plate.

4. A flat screen filtering device according to claim 3, characterized in that, The bottom plate includes a first flat plate, a first inclined plate, and a second inclined plate; the first inclined plate and the second inclined plate are respectively fixedly connected to both sides of the first flat plate; the included angle between the first inclined plate and the horizontal plane is b, and the included angle between the second inclined plate and the horizontal plane is c.

5. A flat screen filtering device according to claim 1, characterized in that, A filter screen is also laid at the inner bottom of the flat sieve plate.

6. The flat screen filtering device according to claim 1, wherein, The elastic member is a spring.

7. A plan sieve filtration device as described in claim 1, characterized in that, The vibration unit is a vibration motor.

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