CN215842063U

CN215842063U - Initial filtering device for water inlet of filtering tank

Info

Publication number: CN215842063U
Application number: CN202121993274.7U
Authority: CN
Inventors: 王继苗; 刘海山; 曲勇; 徐洋; 陈刚; 王媛媛; 姜平波
Original assignee: Qingdao Shuangyuan Water Co ltd
Current assignee: Qingdao Shuangyuan Water Co ltd
Priority date: 2021-08-24
Filing date: 2021-08-24
Publication date: 2022-02-18
Anticipated expiration: 2031-08-24

Abstract

The utility model relates to a primary filtering device for a water inlet of a filtering tank, which comprises a fence filter screen fixed at the water inlet, a cleaning cylinder arranged in the fence filter screen and a first power mechanism, wherein the fence filter screen is enclosed by four metal nets, the top of the fence filter screen is provided with an opening, and the fence filter screen is fixed on the side wall of the filtering tank and encloses the water inlet; the cleaning cylinder is cylindrical and is also formed by enclosing a metal net, the cleaning cylinder can rotate in the fence filter screen through a rotating shaft, and a plurality of brush strips with brushes are arranged on the outer wall of the cylinder; the first power mechanism is in power connection with the rotating shaft and drives the cleaning cylinder to rotate; when the cleaning cylinder rotates, the brush of the brush strip brushes down impurities on the inner side of the fence filter screen, so that the fence filter screen is prevented from being blocked.

Description

Initial filtering device for water inlet of filtering tank

Technical Field

The utility model relates to a filter device of a filter tank, in particular to a filter device arranged on a water inlet of the filter tank.

Background

The last two links of sewage treatment before discharge up to standard are respectively a high-efficiency sedimentation tank and a fiber filtering tank (hereinafter called filtering tank), water treated by the high-efficiency sedimentation tank enters the filtering tank through a pipeline, a water inlet of the filtering tank is arranged above the water surface, a plurality of fiber filtering layers are arranged below the water surface, and sewage can be discharged into the sea after filtering fibers.

The sewage after being treated from the high-efficient sedimentation tank is clearer, but impurities and other floaters still can not exist in water, although the water quality after being filtered by the filter layer can still reach the standard, the floaters on the water surface can influence the water quality of the water to be discharged more and more, the water can be cleaned only manually at regular time, some impurities can be sunk to the bottom of the tank, the water must be thoroughly cleaned after a long time, but the cost of thorough cleaning is too large, and therefore the conventional set of filtering tank has many problems.

Disclosure of Invention

In order to solve the technical problem, the primary filtering device for the water inlet of the filtering tank is provided, and the primary filtering device comprises a fence filtering net fixed at the water inlet, a cleaning barrel arranged in the fence filtering net and a first power mechanism, wherein the fence filtering net is formed by surrounding four metal nets, the top of the fence filtering net is provided with an opening, and the opening is fixed on the side wall of the filtering tank and surrounds the water inlet; the cleaning cylinder is cylindrical and is also formed by enclosing a metal net, the cleaning cylinder can rotate in the fence filter screen through a rotating shaft, and a plurality of brush strips with brushes are arranged on the outer wall of the cylinder; the first power mechanism is in power connection with the rotating shaft and drives the cleaning cylinder to rotate;

when the cleaning cylinder rotates, the brush of the brush strip brushes down impurities on the inner side of the fence filter screen, so that the fence filter screen is prevented from being blocked.

On the basis of the technical scheme, use the filter unit to replace clean a section of thick bamboo, the filter unit is including the discoid filter of being enclosed by the metal mesh, the second power unit of drive filter rotation, filter mesh screen hole aperture is greater than the aperture of rail filter screen, a recess has been seted up to the filtering ponds lateral wall, the diapire height of recess is higher than rail filter screen internal wall height, a filter part is located the recess, another part stretches out and enters into the rail filter screen from the recess, this part filter that is located in the filter screen keeps clearance fit with the filter screen in the surface of water direction.

On the basis of the technical scheme, the side wall of the fence filter screen is also arc-shaped, and the filter and all the side walls of the fence filter screen are in clearance fit.

On the basis of the technical scheme, the supporting members for supporting the bottom of the filter are arranged in the groove and in the fence filter screen respectively, and the supporting members support the filter to avoid the filter from inclining.

On the basis of the technical scheme, the filtering unit further comprises a siphon pipe, the siphon pipe is inserted into the groove from the ground and keeps a spacing fit with the filter, and impurities in the filter are sucked out through equipment capable of generating suction force.

On the basis of the technical scheme, the filter protrudes upwards from the center, and the protruding part is provided with a through hole.

On the basis of the technical scheme, the bottom of the groove is downwards inclined, and the inclined direction faces the fence filter screen.

Has the advantages that: set up the preliminary filtration scheme at the filtering ponds water inlet, just filter impurity in advance before making high-efficient sedimentation tank treatment water get into the filtering ponds, the filtering ponds frequency of decontaminating and intensity that have significantly reduced only need clear up the area of rail filter screen such size can.

For reducing clearance number of times and the clearance degree of difficulty, provide filter unit, utilize filter unit's the reciprocal rotation of filter circulation to come impurity in the drainage, can concentrate the clearance when impurity is more in the filter, its clearance degree of difficulty is less than the degree of difficulty of clearance filtering ponds, and it is more to circulate the more even loading impurity of messenger's impurity distribution from changeing, and the clearance interval is longer, and the convenience of use is higher.

Drawings

Fig. 1 is a schematic cross-sectional view of a prior art structure of the present invention.

Fig. 2 is a schematic cross-sectional view of the structure of the first embodiment of the present invention.

Fig. 3 is a partially enlarged view of fig. 2 of the present invention.

Fig. 4 is a schematic cross-sectional view of a second embodiment of the present invention.

Fig. 5 is a schematic cross-sectional view of a front view of a modified example of the filter of the present invention.

Fig. 6 is a top view of fig. 5 of the present invention.

Detailed Description

The first embodiment.

This embodiment is arranged in filtering high-efficient sedimentation tank water delivery impurity, makes the water that enters into filtering ponds 2 more clear, prolongs fibre filter layer life-span, reduces clearance working strength etc..

The treated water of the high-efficiency sedimentation tank is conveyed to the filter tank 2 from the water conveying pipe, is poured into from the water inlet 1, the fence filter screen 3 is arranged at the water inlet 1, so that sewage and impurities are blocked by the fence filter screen 3 as much as possible, and the sewage at the water inlet 1 is sprayed out, so that the water inlet 1 is surrounded by at least four metal nets like a fence, and the water inlet comprises a bottom surface, left and right side surfaces, a front surface (the side far away from the water outlet), and the back surface and the top surface are open. The metal mesh structure is a metal frame structure and is made of non-soft materials, and the mesh screen hole diameter of the metal mesh is determined according to the size of impurities in the high-efficiency sedimentation tank. Simultaneously for solving the circumstances that fence filter screen 3 is blockked up by impurity and leads to sewage to overflow, set up rotatable clean section of thick bamboo 4 in fence filter screen 3, clean section of thick bamboo 4 is the tubular structure, and it itself also is enclosed by the metal mesh (for example mode such as welding) and forms, and it is rotatory in fence filter screen 3 through the pivot, and first power unit (not shown) drive pivot is rotated. The brush strip 5 on the cleaning barrel 4 is provided with the brush 6, the brush strips 5 are multiple, the cleaning barrel 4 always has the contact of the brush 6 with the inner wall of the fence filter screen 3 when rotating, the problem of cleaning impurities and avoiding blockage can be solved, but the problem that the impurities are not cleaned from the fence filter screen 3 but brushed down from the metal mesh through the brush 6 needs to be noticed.

The first power mechanism may be any feasible solution, such as a motor, etc. In this implementation, the cleaning cylinder 4 can rotate at a slow speed, so that impurities in water are prevented from being thrown out of the fence filter screen 3 directly when the rotating speed is too fast.

Example two.

The second embodiment is made to solve this problem because the cleaning cartridge 4 in the first embodiment cannot clean up the impurities in the fence filter net 3 completely.

In this embodiment, the principle is that a filter 7 similar to the dish shape of the container is rotated in the groove 8 and can extend out of the groove 8 to rotate in the fence filter net 3 to catch large-particle impurities in water, so that the fence filter net 3 is used for filtering smaller impurities and reducing the pressure of the fence filter net 3.

The groove 8 is formed in the bottom of the water inlet 1, the highest point of the groove is smaller than the height of the water inlet 1, the lowest point of the groove is higher than the highest point of the bottom of the inner wall of the rail filter screen 3, namely the top of the groove 8 can be higher than the rail filter screen 3, the bottom of the groove cannot be lower than the rail filter screen 3, otherwise, water dropping when the filter 7 rotates into the groove 8 can directly flow into the filter tank 2 from the groove 8 and cannot be filtered by the rail filter screen 3. In order to quickly discharge accumulated water in the groove 8, the bottom of the groove 8 is arranged to be inclined, so that water flows into the fence filter screen 3 under the action of gravity.

To reduce the frequency of manual cleaning, a siphon tube 10 is inserted from the ground into the recess 8, the lower end of the siphon tube 10 being close to the filter 7 and held in spaced engagement as shown in figure 3. The impurities in the filter 7 are sucked into the siphon tube 10 using a suction force generating device and then transferred to a designated position. The device for generating suction force is not particularly limited, and may be any device such as an air pump.

Since the fence filter net 3 of the first embodiment is composed of four surfaces and is basically a cubic structure, the filter 7 should be at least in clearance fit with the metal net on the front surface of the fence filter net 3, so as to reduce the flow of the sewage into the fence filter net 3 from the clearance between the two, and as shown in fig. 4, the filter 7 is mostly in the groove 8, and only a small part of the filter 7 is located in the fence filter net 3, so that the fence filter net 3 can only have the front surface in clearance fit with the filter 7. For the adaptation filter 7 that can be better, set the lateral wall of rail filter screen 3 into arc shape, so rail filter screen 3 only has a lateral wall, can confirm self radian according to the radian of filter 7. It is noted that in this and all other embodiments, the gap and the pitch describe the spacing, but the distance defining the gap is smaller than the pitch.

The second power mechanism driving the filter 7 to rotate can be connected to the filter 7 in any feasible manner, and the power manner is not limited. All be provided with the bearing component 9 that holds the filter in rail filter screen and the recess, bearing component 9 can not limit the structure, but need play the effect that can play the bearing when the filter rotation, avoids its rotation to be the slope.

There is also a modification in this embodiment in which the filter 7 is changed from a disk-shaped integral structure to a circular ring-shaped structure, and the center of the filter 7 is raised upward 11 and opened with a through hole 12, that is, as shown in fig. 5 to 6, the filter 7 shown in fig. 5 is viewed as a disk, and the through hole 12 is shown in fig. 6 in a plan view. The object is that the siphon 10 cannot estimate all positions of the filter 7, so that the impurities in the middle of the filter 7 are not easily sucked away in the second embodiment, and the impurities do not accumulate in the middle of the filter 7 in the present modification.

Claims

1. The primary filtering device for the water inlet of the filtering tank is characterized by comprising a fence filter screen fixed at the water inlet, a cleaning cylinder arranged in the fence filter screen and a first power mechanism, wherein the fence filter screen is formed by surrounding four metal nets, the top of the fence filter screen is open, and the fence filter screen is fixed on the side wall of the filtering tank and surrounds the water inlet; the cleaning cylinder is cylindrical and is also formed by enclosing a metal net, the cleaning cylinder can rotate in the fence filter screen through a rotating shaft, and a plurality of brush strips with brushes are arranged on the outer wall of the cylinder; the first power mechanism is in power connection with the rotating shaft and drives the cleaning cylinder to rotate;

2. The primary water inlet filtering device for the filtering tank as claimed in claim 1, wherein the filtering unit is used to replace a cleaning barrel, the filtering unit comprises a disk-shaped filter surrounded by a metal net and a second power mechanism for driving the filter to rotate, the aperture of the filter mesh screen is larger than that of the fence filter screen, a groove is formed in the side wall of the filtering tank, the height of the bottom wall of the groove is higher than that of the bottom wall of the fence filter screen, one part of the filter is located in the groove, the other part of the filter extends out of the groove and enters the fence filter screen, and the part of the filter located in the filtering screen is in clearance fit with the filter screen in the water surface direction.

3. The primary filter at the inlet of a filter tank of claim 2, wherein the side walls of the rail filter are also curved, and the filter is in clearance fit with all the side walls of the rail filter.

4. The primary filter at the water inlet of the filter tank as claimed in claim 2, wherein a supporting member for supporting the bottom of the filter is provided in the groove and in the filter net of the rail, respectively, and the supporting member supports the filter to prevent the filter from tilting.

5. The primary filter at the inlet of a filter tank of claim 2, wherein the filter unit further comprises a siphon pipe inserted into the recess from the ground and spaced apart from the filter, the siphon pipe sucking out impurities in the filter by means of a suction force generating device.

6. The primary filter at the water inlet of a filter tank as claimed in claim 5, wherein the filter protrudes upward from the center, and the protrusion is provided with a through hole.

7. A primary filter at the inlet of a filter tank as claimed in any one of claims 2 to 6, wherein the bottom of the recess is inclined downwardly towards the rail filter.