CN211051033U - Filtering device - Google Patents

Abstract

The utility model discloses a filtering device, which belongs to the technical field of filtering, and comprises a box body with a liquid inlet and a liquid outlet, and at least one filtering unit which is obliquely arranged on the box body, wherein the filtering unit comprises a diagonal screen and a curved screen connected with the bottom of the diagonal screen; the liquid inlet is communicated with the top of the inclined sieve and is used for conveying mixed liquid containing solid impurities to the upper surface of the inclined sieve; the liquid outlet is positioned at the lower part of the box body and is used for leading out the liquid filtered in the box body. This filter unit can filter the solid impurity who mixes in the liquid to when clearance impurity, only need with the solid impurity on the sieve bend take out can, make the utility model provides a filter equipment's efficiency is higher.

Description

Filtering device

Technical Field

The utility model relates to a filter technical field especially relates to a filter equipment.

Background

In the raw water purification or sewage treatment technology, solid impurities in a mixed solution need to be filtered, and then the filtered clear solution needs to be further treated.

In the related art, a plate-and-frame filter press is generally used to filter solid impurities in the mixed liquid. The working principle is as follows: when the mixed liquid passes through the filter cloth, the mixed liquid is extruded by the plate frame, so that the solid in the mixed liquid stays on the filter cloth, and the clear liquid for removing the solid in the mixed liquid can permeate the filter cloth and is collected by the collecting device.

However, when the amount of solids on the filter cloth is large, the plate-and-frame filter press needs to be stopped to replace the filter cloth, which results in the failure of the plate-and-frame filter press to continuously operate, and further results in the low filtration efficiency of the plate-and-frame filter press.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a filter equipment to the change filter cloth that exists among the solution prior art leads to the unable continuous operation of plate and frame filter press, and then leads to the lower problem of filter efficiency of plate and frame filter press.

As the conception, the utility model adopts the technical proposal that:

there is provided a filter device comprising: the filter unit comprises an inclined screen and an arc screen connected with the bottom of the inclined screen; the liquid inlet is communicated with the top of the inclined sieve and is used for conveying mixed liquid containing solid impurities to the upper surface of the inclined sieve; the liquid outlet is positioned at the lower part of the box body and used for leading out the liquid filtered in the box body.

Preferably, each filter unit comprises a first filter unit and a second filter unit positioned below the first filter unit, the first filter unit comprises a first inclined screen and a first sieve bend, and the second filter unit comprises a second inclined screen and a second sieve bend;

the liquid inlet is used for conveying mixed liquid containing the solid impurities to the upper surface of the first inclined sieve.

Preferably, the first inclined screen is parallel to the second inclined screen;

one end of the first sieve bend is connected with the first inclined sieve, and the other end of the first sieve bend is connected with the box body; one end of the second sieve bend is connected with the second inclined sieve, and the other end of the second sieve bend is connected with the box body.

Preferably, the device also comprises a supporting strip fixed on the box body, and the first inclined screen is parallel to the second inclined screen;

one end of the first sieve bend is connected with the first inclined sieve, and the other end of the first sieve bend is fixed on the supporting bar; one end of the second sieve bend is connected with the second inclined sieve, and the other end of the second sieve bend is connected with the box body.

Preferably, the tank body comprises a frame body and an overflow tank fixed to the frame body;

one end of the overflow box is communicated with the liquid inlet, the other end of the overflow box is provided with an overflow port, and the overflow port is used for conveying mixed liquid containing fixed impurities to the upper surface of the inclined sieve.

Preferably, the box body further comprises a trash holding basket, and the trash holding basket is fixed on the side wall of the box body and used for holding solid trash retained in the sieve bend.

Preferably, a first filter sieve is arranged in the trash holding basket, and the first filter sieve is used for filtering solid trash in the trash holding basket.

Preferably, the box body further comprises an impurity containing groove fixed on the frame body, and the impurity containing groove is located under the second sieve bend and used for containing solid impurities falling from the second sieve bend.

Preferably, the size of the second sieve bend is larger than that of the second inclined sieve mesh, and the surface of the second sieve bend is wrapped with a super-hydrophobic nano coating.

Preferably, the bottom plate of the box body inclines towards the liquid outlet.

The utility model provides a filter equipment is fixed in at least one filter unit in the box including the slope, and filter unit has inclined screen and sieve bend. Mix liquid after inlet flow direction inclined sieve, under the effect of gravity, the sieve mesh that liquid after the filtration passes through filter unit drops to the bottom plate of box on, and the solid impurity in the mixed liquid then slides to the sieve bend along filter unit's inclined sieve to the solid impurity separation in the mixed liquid. Because during the solid impurity of clearance sieve bend accumulation, only need with the solid impurity of sieve bend take out can, and need not to make whole filter equipment stop work, consequently, the utility model provides a filter equipment's efficiency is higher.

Drawings

Fig. 1 is a schematic structural diagram of a filtering apparatus according to a first embodiment of the present invention;

fig. 2 is a schematic structural diagram of a filtering apparatus according to a first embodiment of the present invention;

fig. 3 is a schematic structural diagram three of a filtering apparatus according to a first embodiment of the present invention;

FIG. 4 is a schematic view of the first and second filter units of FIG. 3;

FIG. 5 is a schematic structural view of a trash holding basket and a first filter sieve according to an embodiment of the present invention;

fig. 6 is a schematic diagram illustrating a filtering principle of a filtering apparatus according to an embodiment of the present invention.

In the figure:

10. a box body; 11. a liquid inlet; 12. a liquid outlet;

13. a frame body; 131. a front plate; 132. a back plate; 133. a side plate; 134. a base plate;

14. an overflow tank; 15. a trash holding basket; 16. a first filter sieve;

20. a filtration unit; 21. a first filter unit; 211. a first inclined screen; 212. a first trommel;

22. a second filter unit; 221. a second inclined screen; 222. a second trommel;

30. a support strip.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but 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, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present embodiment provides a filter device, as shown in fig. 1 and 2, including: a tank 10 having a liquid inlet 11 and a liquid outlet 12, and at least one filter unit 20 obliquely disposed on the tank 10. The filter unit 20 includes: the inclined screen comprises an inclined screen and a curved screen connected with the bottom of the inclined screen.

The liquid inlet is communicated with the top of the inclined sieve, and the liquid inlet 11 is used for conveying mixed liquid containing solid impurities to the upper surface of the inclined sieve. The liquid outlet 12 is located at the lower part of the box body and is used for guiding out the liquid passing through the box body.

In summary, the filtering apparatus provided in this embodiment includes at least one filtering unit 20 obliquely fixed in the box 10, and the filtering unit 20 has an inclined sieve and a curved sieve. Mixed liquid flows to the inclined sieve at inlet 11, and under the effect of gravity, the sieve mesh that the liquid after the filtration passes through filter unit 20 drops to the bottom plate 134 of box 10 on, and the solid impurity in the mixed liquid then slides to the sieve bend along filter unit 20's inclined sieve, and then will mix the liquid separation. Because during the solid impurity of clearance sieve bend accumulation, only need with the solid impurity of sieve bend take out can, and need not to make whole filter equipment stop work, consequently, the filter equipment's that this embodiment provided efficiency is higher.

Example one

Referring to fig. 1 and 2, the filter device includes a box 10, and the box 10 includes a frame body 13. The frame body 13 includes: a bottom plate 134, a front plate 131, a rear plate 132 connected to the bottom plate 134, respectively, and two side plates 133 positioned between the front plate 131 and the rear plate 132.

Alternatively, please refer to fig. 3 and 4, the at least one filtering unit 20 may include a first filtering unit 21 and a second filtering unit 22. The first filter unit 21 may include a first inclined screen 211 and a first curved screen 212, and the second filter unit 22 may include a second inclined screen 221 and a second curved screen 222. The first inclined screen 211 and the first trommel 212 may be of unitary construction, and the second inclined screen 221 and the second trommel 222 may also be of unitary construction. It should be noted that the inclined screen in this embodiment may be the first inclined screen 211 and/or the second inclined screen 221, and the curved screen may be the first curved screen 212 and/or the second curved screen 222.

Wherein, first filter unit 21 is used for carrying out primary filter to the mixed liquid, and this second filter unit 22 is used for carrying out secondary filter to the liquid after being filtered by first filter unit 21 to further improve filter equipment's filter effect, make not contain solid impurity in the liquid after the filtration. At this time, the liquid inlet 11 is used to deliver the mixed liquid containing solid impurities to the upper surface of the first inclined sieve 211.

Further, referring to fig. 3, the filtering apparatus further includes: and a supporting bar 30 fixed to the case body 10, both ends of the supporting bar 30 being fixed to both side plates 133 of the case body 10, respectively. One end of the first inclined screen 211 is connected to one end of the first curved screen 212; the other end of the first inclined screen 211 is used for abutting against the liquid inlet 11 of the box body 10 so as to receive the mixed liquid provided by the liquid inlet 11; the other end of the first trommel 212 is secured to the support bar 30.

And, the second inclined screen 221 is parallel to the first inclined screen 211, and one end of the second inclined screen 221 is connected to one end of the second sieve bend 222; the other end of the second inclined screen 221 is fixed to the rear plate 132 of the case 10; the other end of the second trommel 222 is secured to the front panel 131 of the box 10.

Further, the size of the mesh in the first filter unit 21 may be larger than the size of the mesh in the second filter unit 22. After the mixed liquid is filtered by the first filtering unit 21, the solid impurities with larger size in the mixed liquid can be filtered, and the solid impurities with smaller size fall on the second filtering unit 22. Because the size of the sieve mesh of the second filtering unit 22 is small, the second filtering unit 22 can filter the solid impurities with small size, and the filtering effect of the filtering device is improved. The mesh size in the first filtering unit 21 may be the mesh size of the first inclined screen 211, and at this time, the mesh size in the second filtering unit 22 is the mesh size of the second inclined screen 221; alternatively, the mesh size in the first filter unit 21 may also be the mesh size of the first trommel 212, in which case the mesh size of the second filter unit 22 may be the mesh size of the second trommel 222. For example, the total number of the first inclined screens 211 and the first curved screens 212 in the first filter unit 21 may be 60 meshes; the total number of the second inclined screens 221 and the second arc screens 222 in the second filtering unit 22 may be 100 meshes.

Alternatively, with continued reference to fig. 4, the portion of the first trommel 212 having the greater curvature may have a lesser curvature than the second trommel 222 directly below the portion having the greater curvature. That is, the more curved portion of the first trommel 212 is directly opposite the more gradual portion of the second trommel 222. The liquid in the first sieve bend 212 that has not been filtered can fall onto the second sieve bend 222 to be further filtered at the more gradual portion of the second sieve bend 222, avoiding the waste of the liquid in the mixed liquid due to incomplete filtering.

In this embodiment, referring to fig. 3, the box 10 may further include: an overflow tank 14. One end of the overflow tank 14 is communicated with the liquid inlet 11, and the other end of the overflow tank 14 is provided with an overflow port which is used for conveying mixed liquid containing solid impurities to the upper surface of the inclined screen.

Alternatively, the liquid inlet 11 may be located at an end of the rear plate 132 remote from the bottom plate 134, and the mixed liquid in the liquid inlet 11 flows horizontally from the overflow tank 14 onto the first inclined screen 211. Alternatively, referring to FIG. 3, the liquid inlet 11 may be located at the middle part of the rear plate 132 instead of the end of the rear plate 132 away from the bottom plate 134, and the mixed liquid in the liquid inlet 11 needs to flow upward first and then flow horizontally to the upper surface of the first inclined screen 211. The mixed liquid is at the in-process that upwards flows, and the velocity of flow reduces gradually for reach the velocity of flow of the mixed liquid that the overflow mouth goes out lower, and then make the mixed liquid can slowly flow to the upper surface of first inclined screen 211, prolonged the time that the mixed liquid flows on filter unit 20, further improved filter equipment's filter effect.

In this embodiment, referring to fig. 3 and 5, the box 10 may further include: the trash holding basket 15. The trash holding basket 15 is secured to a side wall of the enclosure 10 and is configured to hold solid trash that is retained on the first and second trommel 212, 222. The side wall of the box 10 may be a front plate 131, a rear plate 132 or a side plate 133 of the box 10. Figure 3 is a schematic view of the trash holding basket 15 secured to the side panel 133 of the enclosure 10.

Further, with continued reference to figures 3 and 5, the trash holding basket 15 can include a first filter screen 16 disposed therein, the first filter screen 16 being configured to further filter the solid trash held within the trash holding basket 15.

In this embodiment, the box 10 may further include a foreign matter containing groove fixed to the frame body 13, and the foreign matter containing groove may be located right below the second sieve bend 222 for containing solid foreign matters dropped from the second sieve bend 222. At this moment, impurity holds and can also be provided with the second filter sieve in the groove, and this second filter sieve is used for further filtering the solid impurity that drops in impurity holds the groove.

Further, the size of the mesh of the second sieve bend 222 may be larger than that of the second inclined screen 221, that is, the mesh number of the second sieve bend 222 may be smaller than that of the second inclined screen 221. Thus, solid impurities located on the second sieve arc 222 can automatically fall into the impurity holding tank without the need for a user to manually clean the solid impurities on the second sieve arc 222.

Still further, the surface of the second sieve arc 222 may be coated with a superhydrophobic nano-coating, thereby reducing adhesion between the solid impurities and the second sieve arc 222, so that the solid impurities on the second sieve arc 222 are more easily dropped.

Alternatively, with continued reference to fig. 3, the bottom 134 of the housing 10 may be inclined toward the liquid outlet 12, that is, the end of the bottom 134 of the housing 10 near the front plate 131 is higher than the end near the rear plate 132, and the end of the bottom 134 near the rear plate 132 is lower than the liquid outlet 12, so that the filtered liquid falling to the bottom 134 of the housing 10 flows toward the liquid outlet 12 under the action of gravity to flow out of the housing 10 from the liquid outlet 12.

In this embodiment, referring to fig. 6, the filtering principle of the filtering apparatus provided in this embodiment may be: the mixed liquid enters the overflow box 14 from the liquid inlet 11, and after being decelerated in the overflow box 14, the mixed liquid flows to the upper surface of the first inclined screen 211 from the overflow port to be filtered for the first time. After being filtered by the first filtering unit 21, the impurities having a large size slide to the first trommel 212 along the first inclined screen 211 and are caught on a more bent portion of the trommel. The liquid doped with the impurities having a smaller size drops on the second filtering unit 22 and is filtered for the second time. After the second filtering, the smaller sized impurities slide to the second sieve bend 222 and remain on the curved portion of the sieve bend, and the filtered liquid drops to the bottom plate 134 of the housing 10 and flows to the outlet 12, where it is collected. The trash disposed on the first and second trommel 212, 222 is removed and placed in the trash holding basket 15. In fig. 6, the solid line with an arrow indicates the flow direction of the mixed liquid, the dotted line with an arrow indicates the flow direction of the filtered liquid, and the black dots indicate solid impurities.

Example two

The filtering apparatus provided in this embodiment is different from the first embodiment in the connection manner of the first filtering unit 21. Specifically, one end of the first inclined screen 211 is connected to one end of the first curved screen 212; the other end of the first inclined screen 211 is used for abutting against the liquid inlet 11 of the box body 10 so as to receive the mixed liquid provided by the liquid inlet 11; the other end of the first trommel 212 is secured to the front plate 131 of the box 10. At this time, the filter device does not include the supporting strip 30.

Further, when the other end of the first trommel 212 is fixed to the front plate 131 of the case 10, the position where the first trommel 212 is coupled to the front plate 131 may be the same as or different from the position where the second trommel 222 is coupled to the front plate 131, which is not limited in this embodiment.

The rest of the structure of this embodiment is the same as that of the first embodiment, and is not described again.

The above embodiments have been described only the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and is not departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. A filter device, comprising: the device comprises a box body (10) with a liquid inlet (11) and a liquid outlet (12) and at least one filtering unit (20) obliquely arranged on the box body (10), wherein the filtering unit (20) comprises an inclined screen and a curved screen connected with the bottom of the inclined screen; the liquid inlet (11) is communicated with the top of the inclined sieve and is used for conveying mixed liquid containing solid impurities to the upper surface of the inclined sieve; the liquid outlet (12) is positioned at the lower part of the box body and is used for leading out the liquid filtered in the box body.

2. A filtering arrangement according to claim 1, characterized in that each filtering unit (20) comprises a first filtering unit (21) and a second filtering unit (22) located below the first filtering unit (21), the first filtering unit (21) comprising a first inclined screen (211) and a first curved screen (212), the second filtering unit (22) comprising a second inclined screen (221) and a second curved screen (222);

the liquid inlet (11) is used for conveying mixed liquid containing the solid impurities to the upper surface of the first inclined screen (211).

3. A filtering device according to claim 2, characterized in that said first inclined screen (211) is parallel to said second inclined screen (221);

one end of the first sieve bend (212) is connected with the first inclined sieve (211), and the other end of the first sieve bend (212) is connected with the box body (10); one end of the second sieve bend (222) is connected with the second inclined sieve (221), and the other end of the second sieve bend (222) is connected with the box body (10).

4. A filtering device according to claim 2, further comprising a support bar (30) fixed to said box (10), said first inclined screen (211) being parallel to said second inclined screen (221);

one end of the first sieve bend (212) is connected with the first inclined sieve (211), and the other end of the first sieve bend (212) is fixed on the supporting bar (30); one end of the second sieve bend (222) is connected with the second inclined sieve (221), and the other end of the second sieve bend (222) is connected with the box body (10).

5. A filtering device according to any one of claims 2 to 4, characterized in that said tank (10) comprises a frame body (13) and an overflow tank (14) fixed to said frame body (13);

one end of the overflow box (14) is communicated with the liquid inlet (11), the other end of the overflow box (14) is provided with an overflow port, and the overflow port is used for conveying mixed liquid containing the solid impurities to the upper surface of the inclined sieve.

6. The filtration apparatus according to any one of claims 1 to 4, wherein the housing (10) further comprises a trash holding basket (15), the trash holding basket (15) being secured to a side wall of the housing (10) for holding solid trash retained by the curved screen.

7. The filtering device according to claim 6, characterized in that a first filtering sieve (16) is provided inside said trash holding basket (15), said first filtering sieve (16) being adapted to filter solid trash inside said trash holding basket (15).

8. A filter device as claimed in claim 5, wherein the box (10) further comprises a impurities holding tank fixed to the frame body (13) and located directly below the second trommel (222) for holding solid impurities dropped by the second trommel (222).

9. The filtering device as claimed in claim 8, wherein the second curved screen (222) has a mesh size larger than that of the second inclined screen (221), and the surface of the second curved screen (222) is coated with a super-hydrophobic nano-coating.

10. A filter device as claimed in any one of claims 1 to 4, wherein the floor of the housing (10) is inclined towards the liquid outlet (12).

Images