Backwash water filter

Abstract

The utility model belongs to the field of sewage treatment, and provides a backwashing water filter which comprises a tank cover and a tank body which are connected up and down, the tank cover and the tank body are respectively provided with a water inlet and a water outlet, the bottom of the tank body is connected with a blow-off pipe, a tank opening of the tank body is provided with an inner ring plate, the inner ring plate is upwards provided with a filter assembly, and the filter assembly is provided with a water inlet and a water outlet. The filtering assembly comprises a bottom plate, the inside and the outside of the bottom plate are respectively provided with a circle of positioning opening, a filter element column is upwards arranged in each positioning opening, and a plurality of screw rods are upwards arranged on the bottom plate. When the filter element columns are required to be replaced, new filter element columns are inserted into the positioning openings, after the new filter element columns are inserted into all the positioning openings, the pressing plates penetrate through the screws according to requirements, the pressing plates fall on the filter element columns, and the pressing nuts are screwed into the tops of the screws until the pressing plates tightly press the filter element columns in an abutting mode, so that the replacement of the filter element columns is facilitated. The whole process of replacing the filter element column is simple, time-saving and labor-saving.

Description

Technical Field

[0001] The utility model belongs to the field of sewage treatment, and particularly relates to a backwashing water filter. Background Art

[0002] In industrial production, a backwashing water filter is added to the sewage treatment pipeline system. When treating sewage, the backwashing water filter can not only play a filtering role, but also has a backwashing and cleaning function.

[0003] The backwashing water filter is internally provided with a filtering component, and generally the filtering component is composed of multiple filter elements. During the actual working process, it is necessary to check the filtering component at regular intervals to ensure the normal use of the backwashing water filter. However, the existing filtering component is relatively complex to install, and the filter elements inside the filtering component are even more difficult to remove, resulting in time-consuming and laborious inspection work. In addition, the backwashing mechanism in the backwashing water filter is difficult to ensure that each filter element is backwashed in place, and the cleaning effect is not obvious. Summary of the Utility Model

[0004] In view of the above problems, the purpose of the utility model is to provide a backwashing water filter, aiming to solve the problems that the filtering component built in the existing backwashing water filter is relatively complex to install and the cleaning effect is not obvious during backwashing.

[0005] The utility model adopts the following technical scheme:

[0006] The backwashing water filter includes a tank cover and a tank body which are connected up and down. The tank cover and the tank body are respectively provided with a water inlet and a water outlet. The bottom of the tank body is connected with a sewage discharge pipe. An inner ring plate is arranged at the tank mouth of the tank body. A filtering component is arranged above the inner ring plate. The filtering component includes a bottom plate. A circle of positioning ports are respectively opened inside and outside the bottom plate. A filter element column is arranged upward in each positioning port. A plurality of screw rods are arranged upward on the bottom plate. A pressing plate is jointly arranged on all the filter element columns. All the screw rods pass through the pressing plate and are screwed into compression nuts. A backwashing mechanism is arranged in the tank body towards the water filtering component.

[0007] Further, the backwashing mechanism includes a base installed in the tank body. A washing pipe is connected to the side wall of the base. The washing pipe penetrates through the tank body. A rotating pipe is rotatably and communicatively arranged upward on the base. The upper part of the rotating pipe is a closed structure. A pair of inner and outer washing branch pipes are communicatively arranged on the rotating pipe. The inner washing branch pipe communicates with the filter element column located on any inner positioning port, and the outer washing branch pipe communicates with the filter element column located on any outer positioning port. A driving motor is arranged on the tank cover. A connecting rod is arranged on the driving motor. The connecting rod is connected with the rotating pipe.

[0008] Further, a pair of lifting blocks are arranged on the tank cover.

[0009] Further, a switching valve is provided on the flushing pipe.

[0010] The beneficial effects of the present utility model are as follows: After the filtering assembly is disassembled from the backwashing water filter, first unscrew all the compression nuts, then remove the pressing plate. At this time, remove the filter element columns from the positioning ports one by one. When it is necessary to replace one of the filter element columns, insert the new filter element column into the positioning port according to the requirements. After all the new filter element columns are inserted into the positioning ports, pass the pressing plate through the screw rods according to the requirements. The pressing plate falls on the filter element columns, and then screw the compression nuts onto the tops of each screw rod until the pressing plate tightly presses the filter element columns. Finally, install it on the inner ring plate according to the requirements. It can be seen that the process of replacing the filter element columns is relatively simple, time-saving and labor-saving. Description of the Drawings

[0011] Figure 1 is an overall view of a backwashing water filter provided by the present utility model.

[0012] Figure 2 is a cross-sectional view of a backwashing water filter provided by the present utility model.

[0013] Figure 3 is a schematic diagram of the filtering assembly provided by the present utility model.

[0014] Figure 4 is a schematic diagram of the bottom plate structure provided by the present utility model. Detailed Embodiments

[0015] In order to make the patent purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0016] In order to illustrate the technical solutions described in the present utility model, the following will be described through specific embodiments.

[0017] For the convenience of description, only the parts related to the embodiments of the present utility model are shown.

[0018] Combined with Figures 1-4As shown in the figure, the backwash water filter includes a tank cover 1 and a tank body 2 connected up and down. The tank cover 1 and the tank body 2 are respectively provided with a water inlet 3 and a water outlet 4. The bottom of the tank body 2 is connected with a sewage discharge pipe 15. An inner ring plate 5 is provided at the tank mouth of the tank body 2. The inner ring plate 5 is provided with a filtering component 6 upwards. The filtering component 6 includes a bottom plate 61. A circle of positioning ports 62 are respectively opened inside and outside the bottom plate 61. A filter element column 63 is upwards provided in each positioning port 62. A plurality of screw rods 64 are upwards provided on the bottom plate 61. A pressing plate 65 is jointly provided on all the filter element columns 63. All the screw rods 64 pass through the pressing plate 65 and are screwed into compression nuts (not shown in the figure). A backwash mechanism is provided in the tank body 2 towards the water filtering component 6.

[0019] In industrial production, a backwash water filter will be added to the sewage treatment pipeline system. When treating sewage, the backwash water filter can not only play a filtering role, but also has a backwash cleaning function.

[0020] In the process of sewage treatment, the treated sewage flows into this backwash water filter from the water inlet. After the sewage passes through the filtering component, under the filtering action of the filtering component, the suspended matters, particulate matters and other impurities in the sewage adhere to the filtering component. The filtered sewage flows out from the water outlet to the next process for treatment. The filtering component can be flushed by the backwash mechanism at regular intervals.

[0021] In this structure, the bottom plate and the inner ring plate are connected by fixing bolts. Therefore, the filtering component is installed on the inner ring plate through the bottom plate. When it is necessary to disassemble the filtering component, only need to open the tank cover and unscrew all the fixing bolts, then the filtering component can be disassembled.

[0022] The filtering component is mainly composed of a bottom plate, a plurality of filter element columns and a pressing plate. When the filtering component is disassembled from the backwash water filter, if a series of work such as replacing and maintaining the filter element columns is to be carried out. First, unscrew all the compression nuts, then remove the pressing plate, and then remove the filter element columns from the positioning ports one by one. If it is necessary to replace the filter element columns, at this time, insert the new filter element columns into the positioning ports according to the requirements. After all the positioning ports are inserted with new filter element columns, then pass the pressing plate through the screw rods according to the requirements. The pressing plate falls on the filter element columns, and then screw the compression nuts onto the top of each screw rod until the pressing plate tightly presses the filter element columns. At this time, the new filtering component is completed. Finally, install it on the inner ring plate according to the requirements. It can be seen that the whole process of replacing the filter element columns is relatively simple, time-saving and labor-saving.

[0023] As a preferred structure, such as Figure 2 、 Figure 4The backwash mechanism includes a base 7 installed in the tank body 2, and a flushing pipe 8 is connected to the side wall of the base 7. The flushing pipe 8 passes through the tank body 2. The base 7 rotates upward and is connected to a rotating pipe 9. The upper part of the rotating pipe 9 is a closed structure. A pair of inner and outer flushing branches are connected on the rotating pipe 9, wherein the inner flushing branch is marked as 101 and the outer flushing branch is marked as 102. The inner flushing branch is connected to the filter column located on any inner positioning port, and the outer flushing branch is connected to the filter column located on any outer positioning port. The tank cover 1 is provided with a driving motor 11, and the driving motor 11 is provided with a connecting rod 12, and the connecting rod 12 is connected to the rotating pipe 9.

[0024] In this structure, the bottom plate has a circle of positioning openings on the inside and outside, and the positioning openings on the inside and outside are evenly distributed, wherein all the inner positioning openings and the outer positioning openings are combined to form a circle.

[0025] The flushing pipe 8 is provided with a switch valve 13, and the end of the flushing pipe is externally connected to a power pump (not shown in the figure). When the filter assembly needs to be flushed using the backflushing mechanism, the backflushing water filter stops working, the switch valve is opened, and the driving motor drives the rotating pipe to rotate slowly through the connecting rod, and the inner and outer flushing branches also rotate accordingly. During the rotation of the inner and outer flushing branches, the flushing water in the inner and outer flushing branches will be sprayed toward the inner and outer positioning ports one by one, and the flushing water will be flushed toward each inner and outer filter column one by one in order, and the sediment on the filter column can be flushed down, and the sediment is finally discharged from the sewage pipe. When the rotating pipe rotates for a cycle, all the inner and outer filter columns are flushed once.

[0026] In this embodiment, if Figure 2 As shown, the bottom of the connecting rod is a square column, and the top of the rotating tube is provided with a square opening matching the square column, and the bottom of the connecting rod is inserted into the square opening. When the filter assembly is to be disassembled from the backwash water filter, the tank cover is first disassembled. During this process, the square column is separated from the square opening, and the connecting rod is disassembled along with it, and finally the filter assembly can be disassembled. In this structure, the structural design of the connecting rod is convenient for later disassembly, and at the same time does not hinder it from driving the rotating tube to rotate.

[0027] like Figure 1 A pair of hanging blocks 14 are provided on the tank cover 1. When the backwash water filter is to be transported, one end of the hanging rope can be fixed on the hanging block, and then the backwash water filter can be easily lifted by using a carrying tool such as a crane and the hanging rope.

[0028] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the utility model shall be included within the protection scope of the present utility model.

Claims

1. An anti-flushing water filter, characterized in that: The backwash water filter includes a tank cover and a tank body connected up and down. The tank cover and the tank body are respectively provided with a water inlet and a water outlet. A sewage pipe is connected to the bottom of the tank body. An inner ring plate is provided at the tank opening of the tank body. A filter assembly is provided upward on the inner ring plate. The filter assembly includes a bottom plate. A circle of positioning ports are respectively opened inside and outside the bottom plate. A filter element column is provided upward in each positioning port. A plurality of screw rods are provided upward on the bottom plate. A pressing plate is provided on all the filter element columns together. All the screw rods pass through the pressing plate and are screwed into the compression nuts. A backwash mechanism is provided in the tank body facing the water filtering assembly.

2. The backwashing water filter according to claim 1, wherein: The backwash mechanism includes a base installed in the tank body. A washing pipe is connected to the side wall of the base. The washing pipe penetrates through the tank body. A rotating pipe is rotatably and communicatively provided upward on the base. The upper part of the rotating pipe is a closed structure. A pair of inner and outer washing branch pipes are communicatively provided on the rotating pipe. The inner washing branch pipe communicates with the filter element column located on any inner positioning port, and the outer washing branch pipe communicates with the filter element column located on any outer positioning port. A driving motor is provided on the tank cover. A connecting rod is provided on the driving motor. The connecting rod is connected to the rotating pipe.

3. The backwashing water filter according to claim 2, characterized in that: A pair of lifting blocks are provided on the tank cover.

4. The backwashing water filter according to claim 3, wherein: A switching valve is provided on the washing pipe.

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