Wastewater filtering device

Abstract

A wastewater filtering device comprises a containing shell, a leading-in pipeline is arranged in the middle of the containing shell in a penetrating mode, a leading-out pipeline is further arranged on the containing shell in a communicating mode, a plurality of filtering shells are arranged on the leading-in pipeline in a sleeving mode, and communicating channels are formed between the filtering shells and the leading-in pipeline. The filtering shell comprises a plurality of arc-shaped filtering blocks which are arranged in an abutting mode, and the bottoms of the arc-shaped filtering blocks are connected with the leading-in pipeline through a communicating channel. The guide-in pipeline is arranged in the penetrating mode and then arranged in the filtering shell, the filtering shell is composed of the arc-shaped filtering blocks arranged in the surrounding mode, the whole filtering net has good assembling performance, and due to the fact that the filtering area is large, the net body is prevented from being connected in a hanging mode, blocking is not prone to occurring, and the filtering efficiency is high.

Description

Technical Field

[0001] This application relates to a wastewater filtration device. Background Art

[0002] Domestic wastewater contains a large amount of solids and water. When treating sewage, the first step is to separate the solids in the sewage. Due to the complexity of domestic wastewater, the sewage filtration device is prone to clogging during the filtration process. Currently, a one-use-one-spare usage method is mostly adopted. However, even with this method, it is necessary to ensure that the filtration device itself does not clog too quickly, otherwise the operating cost is too high, and of course it also affects the in-depth treatment of the filtration device. Therefore, it is necessary to improve the structure of the existing domestic wastewater filtration device. Utility Model Content

[0003] In order to solve the above problems, this application proposes a wastewater filtration device, which includes a receiving housing. An inlet pipe is penetrated through the middle of the receiving housing. An outlet pipe is also communicatively connected to the receiving housing. A plurality of filter housings are sleeved on the inlet pipe, and a conduction channel is provided between the filter housing and the inlet pipe; the filter housing includes a plurality of arc-shaped filter blocks arranged in abutment. The bottom of the arc-shaped filter block is connected to the inlet pipe through the conduction channel. Outer filter meshes are respectively arranged on both sides of the arc-shaped filter block. A backwash spray head is also arranged outside the arc-shaped filter block. The backwash spray head is arranged in the upper middle part of the receiving housing. The outer filter mesh includes an outer annular frame and a mesh body arranged therein. The mesh body is an anti-hanging mesh; the backwash spray head is connected to a backwash pipe arranged parallel to the arc-shaped filter block, and one end of the backwash pipe is connected to the backwash main pipe; the outlet pipe includes an outer polygonal pipe. A V-shaped collection trough is arranged on the upper part of the outer polygonal pipe. A sludge outlet channel is arranged below the V-shaped collection trough. The sludge outlet channel extends to the outside of the receiving housing; the outer polygonal pipe is fixedly connected to the filter housing. By providing a penetrating inlet pipe and then arranging the inlet pipe in the filter housing, the filter housing is composed of surrounding arc-shaped filter blocks, which has good assembly performance. Due to the large filtration area, the mesh body is anti-hanging and not prone to clogging, and the filtration efficiency is high.

[0004] Preferably, the arc-shaped filter block includes a bottom plate abutting against the inlet pipe. The conduction channel is arranged on the bottom plate. An outlet channel communicatively connected to the conduction channel is arranged on the inlet pipe. An outer arc-shaped plate is arranged on the other side of the bottom plate. A side abutting plate is arranged between the bottom plate and the outer arc-shaped plate.

[0005] Preferably, middle support rods are respectively arranged between the middle part of the bottom plate and both sides of the middle part of the outer arc-shaped plate. Lower positioning holes are arranged at the positions of the middle support rods corresponding to the bottom plate, and upper positioning holes are arranged at the positions of the middle support rods corresponding to the outer arc-shaped plate. A connecting screw passes through the upper positioning hole, the lower positioning hole and is fixedly connected with the inlet pipe. Through the way of connection by passing through the connecting screw, the present application can be fixedly connected with the inlet pipe, so that the inlet pipe can play the role of introducing wastewater and fixedly connecting the arc-shaped filter block.

[0006] Preferably, middle reinforcing rods are arranged at the positions of the outer annular frame corresponding to the mesh body, and the middle reinforcing rods are in contact with the middle support rods.

[0007] Preferably, an inner groove is arranged at the position of the outer arc-shaped plate corresponding to the connecting screw, and the outer end of the connecting screw is arranged in the inner groove.

[0008] Preferably, first clamping parts are respectively arranged on the bottom plate, the outer arc-shaped plate and the side abutting plate, and second clamping parts are arranged on the outer filter net in the direction towards the first clamping parts; one of the first clamping part and the second clamping part is an insertion groove, and the other is an insertion rod arranged in cooperation with the insertion groove.

[0009] Preferably, it further includes a discharge cavity, the bottom of the discharge cavity is communicated with the accommodating shell, the discharge pipe is communicated with the bottom of the discharge cavity, and a discharge control valve is arranged on the discharge pipe; a water level controller is arranged on the discharge cavity, and the water level controller is connected to control the discharge control valve.

[0010] By arranging the backwash nozzles, during use, the mesh body of the arc-shaped filter block can be fully intermittently washed, the clogging speed can be delayed as much as possible, and a relatively long overall available time can be ensured after one cleaning.

[0011] The present application can bring the following beneficial effects:

[0012] 1. By arranging the penetrating inlet pipe and then arranging the inlet pipe in the filter housing, the filter housing is composed of surrounding arc-shaped filter blocks, which has good assembly property. Due to the large filtering area, it is not easy to be blocked and has high filtering efficiency.

[0013] 2. Through the way of connection by passing through the connecting screw, the present application can be fixedly connected with the inlet pipe, so that the inlet pipe can play the role of introducing wastewater and fixedly connecting the arc-shaped filter block.

[0014] 3. For the asymmetric setting method of the outer and inner sides of the wire mesh in this application, certain hanging connections will be formed on the inner side. Although there is an eddy current stagnation area on the outer side, after coating with polytetrafluoroethylene and acrylic emulsion, the tightness of the hanging connection is very poor. The hanging connection part formed on the inner side can bring out the hanging objects on the outer side, greatly extending the overall available time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of this application and form a part of this application. The schematic embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation to this application. In the drawings:

[0016] Figure 1 is a schematic structural diagram of this application;

[0017] Figure 2 is a schematic internal structural diagram of this application;

[0018] Figure 3 is a schematic diagram of the arc-shaped filter block;

[0019] Figure 4 is a schematic structural diagram of the outer filter net. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] To clearly illustrate the technical features of this solution, the following will elaborate on this application in detail through specific embodiments and in combination with their accompanying drawings.

[0021] In the first embodiment, as Figures 1-4As shown in the figure, a wastewater filtering device includes a receiving housing 1. A guiding pipe 2 is penetrated through the middle of the receiving housing 1. A discharging pipe 3 is also communicatively connected to the receiving housing 1. A number of filtering housings 4 are sleeved on the guiding pipe 2. A conducting channel 5 is arranged between the filtering housing 4 and the guiding pipe 2. The filtering housing 4 includes a number of arc-shaped filtering blocks 6 that are abutted against each other. The bottom of the arc-shaped filtering block 6 is connected to the guiding pipe 2 through the conducting channel 5. Outer filter meshes 7 are respectively arranged on both sides of the arc-shaped filtering block 6. An anti-flushing spray head 20 is also arranged outside the arc-shaped filtering block 6. The anti-flushing spray head 20 is arranged in the upper middle part of the receiving housing 1. The outer filter mesh 7 includes an outer annular frame 15 and a mesh body 16 arranged therein. The mesh body 16 is an anti-hanging mesh. The arc-shaped filtering block 6 includes a bottom plate 8 that abuts against the guiding pipe 2. The conducting channel 5 is arranged on the bottom plate 8. A discharging channel 9 that is communicatively connected to the conducting channel 5 is arranged on the guiding pipe 2. An outer arc-shaped plate is arranged on the other side of the bottom plate 8. A side abutting plate 11 is arranged between the bottom plate 8 and the outer arc-shaped plate. Middle support rods 12 are respectively arranged between the middle part of the bottom plate 8 and the middle parts on both sides of the outer arc-shaped plate. A lower positioning hole 13 is arranged at the position of the middle support rod 12 corresponding to the bottom plate 8. An upper positioning hole 14 is arranged at the position of the middle support rod 12 corresponding to the outer arc-shaped plate. A connecting screw rod 17 passes through the upper positioning hole 14, the lower positioning hole 13 and is fixedly connected to the guiding pipe 2. A middle reinforcing rod 18 is arranged at the position of the outer annular frame 15 corresponding to the mesh body 16. The middle reinforcing rod 18 abuts against the middle support rod 12. An inner groove 19 is arranged at the position of the outer arc-shaped plate corresponding to the connecting screw rod 17. The outer end part of the connecting screw rod 17 is arranged in the inner groove 19. First clamping parts are respectively arranged on the bottom plate 8, the outer arc-shaped plate and the side abutting plate 11. Second clamping parts that are cooperatively arranged are arranged on the outer filter mesh 7 in the direction towards the first clamping parts. One of the first clamping part and the second clamping part is an insertion slot, and the other is an insertion rod that is cooperatively arranged with the insertion slot. The anti-flushing spray head 20 is connected to an anti-flushing pipe 21 that is arranged parallel to the arc-shaped filtering block 6. One end of the anti-flushing pipe 21 is connected to an anti-flushing main pipe 22.

[0022] During assembly, the arc-shaped filtering blocks 6 are spliced and the connecting screw rod 17 is used to fixedly connect the upper positioning hole 14, the lower positioning hole 13 and the guiding pipe 2, thus completing the connection. When in use, the wastewater is introduced into the filtering housing 4 through the guiding pipe 2, filtered through the outer filter mesh 7 and enters the receiving housing 1, and then is discharged from the receiving housing 1 through the discharging pipe 3, thus completing the filtration of the wastewater to facilitate subsequent treatment. When backwashing is required, the filtering operation is stopped, and the wastewater is introduced through the anti-flushing main pipe 22 into the anti-flushing pipe 21 and the anti-flushing spray head 20 to wash the arc-shaped filtering holes, thus completing the purification of the arc-shaped filtering holes.

[0023] For the export pipeline section, the following structural improvements can also be made: The export pipeline includes an outer polygonal pipeline 31, and a V-shaped collection trough 32 is arranged at the upper part of the outer polygonal pipeline 31. The top of the V-shaped collection trough 32 is in sealing and movable abutting connection with the inner side of the outer polygonal pipeline 31. A silt export channel 34 is arranged below the V-shaped collection trough 32, and the silt export channel 34 extends to the outside of the accommodation housing 1; the outer polygonal pipeline 31 is fixedly connected to the filter housing 4.

[0024] For the overall structural part, the following improvements can also be made: It further includes an export cavity 35. The bottom of the export cavity 35 is communicated with the accommodation housing 1, and the export pipeline 3 is communicated with the bottom of the export cavity 35. An export control valve 36 is arranged on the export pipeline 3; a water level controller 37 is arranged on the export cavity 36, and the water level controller 37 is connected to the export control valve 36 for control.

[0025] The above are only the embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

1. A wastewater filtration device, characterized in that: It includes a receiving housing. An inlet pipe is penetrated through the middle of the receiving housing. An outlet pipe is also communicatively connected to the receiving housing. A number of filter housings are sleeved on the inlet pipe, and a conduction channel is provided between the filter housing and the inlet pipe. The filter housing includes a number of arc-shaped filter blocks arranged in abutting connection. The bottom of the arc-shaped filter block is connected to the inlet pipe through the conduction channel. Outer filter meshes are respectively arranged on both sides of the arc-shaped filter block. An anti-flushing nozzle is also arranged on the outer side of the arc-shaped filter block. The anti-flushing nozzle is arranged in the upper middle part of the receiving housing. The outer filter mesh includes an outer annular frame and a mesh body arranged therein. The mesh body is an anti-hanging mesh. The anti-flushing nozzle is connected to an anti-flushing pipe arranged parallel to the arc-shaped filter block. One end of the anti-flushing pipe is connected to an anti-flushing main pipe. The outlet pipe includes an outer polygonal pipe. A V-shaped collection groove is arranged on the upper part of the outer polygonal pipe. A silt outlet channel is arranged below the V-shaped collection groove. The silt outlet channel extends to the outside of the receiving housing. The outer polygonal pipe is fixedly connected to the filter housing.

2. The wastewater filtration device according to claim 1, characterized in that: The arc-shaped filter block includes a bottom plate abutting against the inlet pipe. The conduction channel is arranged on the bottom plate. An outlet channel communicatively connected to the conduction channel is arranged on the inlet pipe. An outer arc plate is arranged on the other side of the bottom plate. A side abutting plate is arranged between the bottom plate and the outer arc plate.

3. The wastewater filtering device according to claim 2, wherein: Middle support rods are respectively arranged between the middle parts of the bottom plate and the two sides of the middle part of the outer arc plate. Lower positioning holes are arranged at the positions of the middle support rods corresponding to the bottom plate. Upper positioning holes are arranged at the positions of the middle support rods corresponding to the outer arc plate. A connecting screw passes through the upper positioning hole, the lower positioning hole and is fixedly connected to the inlet pipe.

4. A wastewater filtration device according to claim 3, characterized in that: Middle reinforcing rods are arranged at the positions of the outer annular frame corresponding to the mesh body. The middle reinforcing rods are in abutting connection with the middle support rods. Inner grooves are arranged at the positions of the outer arc plate corresponding to the connecting screws. The outer ends of the connecting screws are arranged in the inner grooves.

5. The wastewater filtering device according to claim 2, wherein: First clamping parts are respectively arranged on the bottom plate, the outer arc plate and the side abutting plate. Second clamping parts are arranged on the outer filter mesh in the direction towards the first clamping parts for mating. One of the first clamping part and the second clamping part is an insertion slot, and the other is an insertion rod mating with the insertion slot.

6. The wastewater filtering device according to claim 1, wherein: It also includes an outlet cavity. The bottom of the outlet cavity is communicatively connected to the receiving housing. The outlet pipe is communicatively connected to the bottom of the outlet cavity. An outlet control valve is arranged on the outlet pipe. A water level controller is arranged on the outlet cavity. The water level controller is connected to the outlet control valve for control.

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