Microfilter

Abstract

The utility model provides a microstrainer, including reservoir, filter device and flushing device, the reservoir is used for holding sewage, filter device is rotatablely provided in reservoir, flushing device is provided above filter device, the filter device is provided with a plurality of filter screen around the axle center, forms the cavity between adjacent filter screen, and flushing device is provided above the filter screen. The containing cavity is used for containing filtered impurities, a collecting groove is formed in the side, close to the axis, of the containing cavity, the end of the collecting groove is connected with a blow-off pipe, the blow-off pipe extends out of the reservoir, the flushing device is used for outputting flushing liquid to discharge the impurities out of the filtering device, and the impurities are contained in the containing cavity formed by the adjacent filter screens. Impurities on the upper filter screen are prevented from blocking the lower filter screen to influence the sewage filtering effect when falling off; meanwhile, impurities are prevented from falling off and being mixed with the filtered water body, and the sewage filtering effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to microfiltration machine technical field, concretely relates to a microfiltration machine. BACKGROUND

[0002] Microfiltration machine is a kind of mechanical filter, and the solid particles with larger particle size in aquaculture wastewater are intercepted by micro-porous screen to achieve the purpose of solid-liquid separation. For example, the patent document with Chinese application number 202222737346.2 and publication date of January 24, 2023 discloses a non-powered microfiltration machine for MBR pretreatment, which comprises: a pair of bearings, the inner ring of the pair of bearings is fixed on the external frame; filter screen frame, the two ends of the filter screen frame are connected with the outer ring of the pair of bearings, and the filter screen frame is provided with a filter screen; flushing module, the flushing module is located at the top of the filter screen frame and is used for flushing the impurities on the filter screen; water inlet driving module, the water inlet driving module is connected with one end of the filter screen frame and is used for conveying sewage into the filter screen frame and driving the filter screen frame to rotate; residue discharging module, the residue discharging module is connected with the other end of the filter screen frame and is used for discharging the impurities washed away by the flushing module.

[0003] The microfiltration machine filters sewage through the filter screen, and the impurities in the sewage adhere to the wall surface of the filter screen. When the filter screen rotates, the impurities will move upward, and the impurities will fall to the bottom of the filter screen frame under the action of gravity, thereby blocking the filter holes of the lower filter screen, and the falling impurities will mix with the sewage, affecting the filtering effect. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model aims to provide a microfiltration machine, which forms a cavity between adjacent filter screens to accommodate impurities, avoids the impurities falling from the upper filter screen from blocking the lower filter screen and affecting the filtering effect of the sewage, and avoids the impurities falling and mixing with the filtered water, thereby improving the filtering effect of the sewage.

[0005] To solve the above technical problems, the utility model uses the following technical scheme:

[0006] The microfiltration machine comprises a water storage tank, a filtering device and a flushing device. The water storage tank is used for accommodating sewage. The filtering device is rotatably arranged in the water storage tank. The flushing device is arranged above the filtering device. The filtering device comprises a plurality of filter screens arranged around the shaft. Cavities are formed between adjacent filter screens. The cavities are used for accommodating impurities after filtration. A collection groove is arranged on one side of the cavity close to the shaft. An end of the collection groove is connected with a sewage discharge pipe. The sewage discharge pipe extends out of the water storage tank. The flushing device is used for outputting flushing liquid to discharge impurities from the filtering device.

[0007] Preferably, the included angle between adjacent filter screens is a, and 20° < a < 70°.

[0008] Preferably, a is 45°.

[0009] Preferably, the flushing device is provided with multiple water outlet directions, and the multiple water outlet directions are respectively directed to different regions of the filter screen.

[0010] Preferably, at least one water outlet direction of the flushing device is directed to a side of the filter screen away from the collecting groove; and at least one water outlet direction of the flushing device is directed to the collecting groove.

[0011] Preferably, the flushing device comprises multiple flushing nozzles, and the multiple flushing nozzles are respectively directed to different regions of the filter screen.

[0012] Preferably, the flushing device comprises a flushing nozzle and a rotating device, the flushing nozzle is arranged on the rotating device, the rotating device is used for adjusting the water outlet direction of the flushing nozzle, and the rotating device drives the flushing nozzle to swing to adjust the angle between the flushing nozzle and the filter screen.

[0013] Preferably, the collecting groove extends along the length direction of the filter screen.

[0014] Preferably, the filter device further comprises a rotating shaft and a supporting outer ring, the rotating shaft is connected with the rotating motor, the filter screen is arranged around the rotating shaft and connected with the rotating shaft, and the supporting outer ring is located at both ends of the rotating shaft and connected with the filter screen.

[0015] The beneficial effects of the micro-filtering machine of the present application mainly include that: the filter device is arranged in the water storage pool, different filter screens are sequentially contacted with the sewage in the water storage pool by rotating the filter device, and the sewage in the water storage pool can be filtered multiple times; the impurities are collected in the cavity, so that the impurities falling from the upper filter screen do not block the lower filter screen and affect the filtering effect on the sewage; meanwhile, the impurities falling are prevented from mixing with the filtered water, and the filtering effect on the sewage is improved; the impurities on the filter screen are collected by the collecting groove, and the impurities are driven into the collecting groove by the flushing liquid and then discharged.

[0016] The flushing device is provided with multiple water outlet directions, and the filter screen is flushed along different angles, so that different regions of the filter screen can be covered, and the flushing effect is good; meanwhile, at least one water outlet direction is directed to a side of the filter screen away from the collecting groove, so that when the filter screen is flushed, the flushing liquid flows from the side of the filter screen away from the collecting groove to the side of the filter screen close to the collecting groove, thereby driving the impurities into the collecting groove; at least one water outlet direction is directed to the collecting groove, so that the flushing liquid directly flushes the collecting groove, thereby discharging the impurities in the collecting groove from the filter device.

[0017] Multiple flushing nozzles are arranged, each flushing nozzle corresponds to a part of the region of the filter screen, the multiple regions of the filter screen can be flushed at the same time, and the structure is simple.

[0018] The rotating device is arranged to drive the flushing nozzle to swing, the activity range of the flushing nozzle is large, and the coverage range of the flushing liquid on the filter screen is wide.

[0019] The rotating shaft is driven to rotate by the rotating motor, thereby driving the filter screen to rotate; meanwhile, the overall strength of the filtering device is improved by the supporting outer ring.

[0020] The cavity formed by the adjacent filter screens accommodates impurities, avoids the impurities of the upper filter screen from blocking the lower filter screen when falling, and affects the filtering effect on the sewage; meanwhile, the impurities falling are prevented from mixing with the filtered water, and the filtering effect on the sewage is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] The above and other objects, features and advantages of the present application will become more clearly understood from the following more particular description, accordingly, the present application will be described with reference to the following drawings. The same reference numerals are used throughout the drawings and corresponding parts are not described repeatedly. The drawings are not drawn to scale, and the emphasis is placed on illustrating the main idea of the present application.

[0022] Figure 1 It is a schematic view of the present application.

[0023] Figure 2 It is a schematic view of the present application.

[0024] Figure 3 It is a schematic view of the present application.

[0025] Figure 4 It is a schematic view of the present application.

[0026] Figure 5 It is a schematic view of the present application.

[0027] Figure 6 It is a schematic view of the present application. Figure 5 It is a schematic view of the present application.

[0028] Figure 7 It is a schematic view of the present application.

[0029] Figure 8 It is a schematic view of the present application.

[0030] BRIEF DESCRIPTION OF DRAWINGS: Water storage tank 1, sewage 10; filtering device 2, filter screen 21, cavity 22, collecting groove 23, rotating shaft 24, supporting outer ring 25; flushing device 3, flushing nozzle 31, rotating device 32, support 33, connecting seat 34. DETAILED DESCRIPTION

[0031] The technical scheme of the utility model will be described in further detail below with reference to the drawings and specific embodiments, so that the skilled in the art can better understand the utility model and implement it, but the embodiments are not used as the limitation of the utility model, and in the embodiments, it should be understood that the orientation or position relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only used for the convenience of describing the utility model, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as the limitation of the utility model.

[0032] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element and integrated as a whole, or a middle element can exist at the same time. The terms "mount", "one end", "the other end" and similar expressions used in the utility model are only for the purpose of illustration.

[0033] As Figures 1-8 shown, a kind of microfilter, including reservoir 1, filter device 2 and flushing device 3, the reservoir 1 is used to accommodate sewage 10, filter device 2 can be rotatably arranged in reservoir 1, flushing device 3 is arranged above filter device 2, the filter device 2 is arranged around the multiple filter screens 21 of axis, cavity 22 is formed between adjacent filter screens 21, cavity 22 is used to receive impurity after filtering, cavity 22 is equipped with collection groove 23 on the side close to axis, the collection groove 23 extends along the length direction of filter screen 21;End of collection groove 23 is connected with sewage pipe (not shown in the figure), sewage pipe extends to outside reservoir 1, flushing device 3 is used to output flushing liquid and expel impurity from filter device 2.

[0034] Filter device 2 is arranged in reservoir 1, by rotating filter device 2, different filter screens 21 are in turn contacted with sewage 10 in reservoir 1, and sewage 10 in reservoir 1 can be filtered multiple times;Impurities are received by cavity 22, to avoid that impurities of upper filter screen 21 block lower filter screen 21 when falling, affect the filtering effect of sewage 10;Meanwhile, impurities falling are avoided to mix with filtered water body, improve the filtering effect of sewage 10;Impurities on filter screen 21 are collected by collection groove 23, and impurities are driven into collection groove 23 by flushing liquid and then discharged.

[0035] As Figure 2 and Figure 3 shown, the flushing device 3 is provided with multiple water outlet directions, and the multiple water outlet directions are respectively directed to different regions of the filter screen 21. The flushing device 3 is provided with multiple water outlet directions, and the filter screen 21 is flushed at different angles, so that different regions of the filter screen 21 can be covered, and the flushing effect is good

[0036] The rinsing device 3 has at least one water outlet direction pointing towards the side of the filter screen 21 away from the collection tank 23; the rinsing device 3 has at least one water outlet direction pointing towards the collection tank 23. At the same time, with at least one water outlet direction pointing towards the side of the filter screen 21 away from the collection tank 23, when rinsing the filter screen 21, the rinsing liquid flows from the side of the filter screen 21 away from the collection tank 23 towards the side of the filter screen 21 closer to the collection tank 23, thereby carrying impurities into the collection tank 23; at least one water outlet direction points towards the collection tank 23, so that the rinsing liquid directly rinses the collection tank 23, thereby discharging the impurities in the collection tank 23 from the filtration device 2.

[0037] In this embodiment, the rinsing device 3 includes a rinsing nozzle 31 and a rotating device 32. The rinsing nozzle 31 is mounted on the rotating device 32, which is used to adjust the water outlet direction of the rinsing nozzle 31. The rotating device 32 drives the rinsing nozzle 31 to swing, thereby adjusting the angle between the rinsing nozzle 31 and the filter screen 21. By setting the rotating device 32 to drive the rinsing nozzle 31 to swing, the rinsing nozzle 31 has a large range of motion, and the rinsing liquid covers a wide area on the filter screen 21.

[0038] Specifically, the rinsing device 3 includes a bracket 33, on which a connecting seat 34 is provided. The fixed end of the rotating device 32 is connected to the connecting seat, and the movable end of the rotating device 32 is connected to the rinsing nozzle 31. A water inlet is provided on the side of the rinsing nozzle 31 that is adjacent to the rotating device 32, and a water pipe is connected to the water inlet. Figure 2 As shown, the rotating device 32 drives the flushing nozzle 31 to swing around the filter device 2 in the circumferential direction;

[0039] Reference Figure 2 As shown, when rinsing the filter screen 21, the outlet of the rinsing nozzle 31 is aligned with the side of the filter screen 21 furthest from the collection tank 23. The rinsing liquid flows from the side of the filter screen 21 furthest from the collection tank 23 to the side of the filter screen 21 closest to the collection tank 23, simultaneously carrying impurities into the collection tank 23; (Refer to...) Figure 3 As shown, when rinsing the collection tank 23, the outlet of the rinsing nozzle 31 is aligned with the collection tank 23, and the rinsing liquid discharges the impurities in the collection tank 23 into the filter device 2.

[0040] Reference Figure 4 As shown, in another preferred embodiment, the rinsing device 3 includes multiple rinsing nozzles 31, with the water outlet direction of each nozzle 31 pointing towards different areas of the filter screen 21. By providing multiple rinsing nozzles 31, each corresponding to a portion of the filter screen 21, multiple areas of the filter screen 21 can be rinsed simultaneously, resulting in a simple structure.

[0041] In another preferred embodiment, the flushing device 3 comprises a plurality of flushing nozzles 31, and the water outlet directions of the plurality of flushing nozzles 31 are respectively directed to different areas of the filter screen 21. The plurality of flushing nozzles 31 are arranged, and each of the flushing nozzles 31 corresponds to a partial area of the filter screen 21, so that the plurality of areas of the filter screen 21 can be flushed simultaneously, and the structure is simple.

[0042] In a preferred embodiment, the included angle between the adjacent filter screens 21 is a, and 20°<a<70°; preferably, a is 45°.

[0043] In a preferred embodiment, the collecting groove 23 extends along the length direction of the filter screen 21; the length of the collecting groove 23 is large, so that more impurities can be accommodated, and meanwhile, the impurities on the filter screen 21 can be conveniently guided into the collecting groove 23.

[0044] The filter device 2 further comprises a rotating shaft 24 and a supporting outer ring 25; the rotating shaft 24 is connected with a rotating motor (not shown in the figure), and the rotating motor is a stepping motor. The filter screen 21 is arranged around the rotating shaft 24 and connected with the rotating shaft 24; the supporting outer ring 25 is located at both ends of the rotating shaft 24 and connected with the filter screen 21. The collecting groove 24 is arranged on the rotating shaft 24. The rotating shaft 24 is driven to rotate by the rotating motor, so as to drive the filter screen 21 to rotate; meanwhile, the overall strength of the filter device 2 is improved by the supporting outer ring 25.

[0045] A water outlet (not shown in the figure) is arranged at the bottom of the water storage pool 1, and a control valve (not shown in the figure) is arranged in the water outlet, and the control valve is used to discharge the filtered water body; in use, the sewage is input into the water storage pool 1, and then the filter device 2 is driven to filter the sewage, and the impurities in the sewage are discharged; then the control valve is opened to output the filtered water body.

[0046] In the present specification, unless otherwise explicitly specified and limited, the first feature is "on", "above" or "under" the second feature, which can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature can be directly above or obliquely above the second feature, or it only means that the horizontal height of the first feature is higher than that of the second feature. The first feature can be directly below or obliquely below the second feature, or it only means that the horizontal height of the first feature is lower than that of the second feature.

[0047] In the description of the specification, the description using the terms "preferred embodiment", "still another embodiment", "other embodiments", "specific example" or the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the specification, the illustrative expressions of the above terms are not necessarily directed to the same embodiment or example. Also, the specific features, structures, materials or characteristics described can be combined in an appropriate manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and modify the different embodiments or examples described in the specification and the features of the different embodiments or examples, without contradiction.

[0048] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary, and are not construed as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application.

Claims

1. A microfiltration machine, characterized in that: The system includes a water storage tank, a filtration device, and a flushing device. The water storage tank is used to hold sewage. The filtration device is rotatably installed in the water storage tank. The flushing device is installed above the filtration device. The filtration device has multiple filter screens arranged around an axis, and a cavity is formed between adjacent filter screens. The cavity is used to hold the filtered impurities. A collection trough is provided on the side of the cavity near the axis. The end of the collection trough is connected to a sewage pipe, which extends to the outside of the water storage tank. The flushing device is used to output flushing liquid to discharge the impurities from the filtration device.

2. The microfiltration machine according to claim 1, characterized in that: The included angle between adjacent filters is α, where 20° < α < 70°.

3. The microfiltration machine according to claim 2, characterized in that: a is 45°.

4. The microfiltration machine according to claim 1, characterized in that: The rinsing device has multiple water outlet directions, each pointing to a different area of ​​the filter screen.

5. The microfiltration machine according to claim 4, characterized in that: The flushing device has at least one water outlet direction pointing towards the side of the filter screen away from the collection tank; the flushing device has at least one water outlet direction pointing towards the collection tank.

6. The microfiltration machine according to claim 4, characterized in that: The rinsing device includes multiple rinsing nozzles, with the water outlets of the multiple rinsing nozzles pointing towards different areas of the filter screen.

7. The microfiltration machine according to claim 4, characterized in that: The rinsing device includes a rinsing nozzle and a rotating device. The rinsing nozzle is mounted on the rotating device, which is used to adjust the water outlet direction of the rinsing nozzle. The rotating device drives the rinsing nozzle to swing and adjust the angle between the rinsing nozzle and the filter screen.

8. The microfiltration machine according to claim 1, characterized in that: The collection trough extends along the length of the filter screen.

9. The microfiltration machine according to claim 1, characterized in that: The filtration device further includes a rotating shaft and a supporting outer ring. The rotating shaft is connected to a rotary motor, and the filter screen is arranged around the rotating shaft and connected to the rotating shaft. The supporting outer ring is located at both ends of the rotating shaft and connected to the filter screen.

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