CN220460079U - Backflow filtering structure for air floatation equipment - Google Patents

Abstract

The utility model discloses a reflux filtering structure for air floatation equipment, which comprises a reflux pump, a reflux pipe and a filter, wherein the reflux pump is connected with a liquid outlet of the reflux pipe; a supporting disc is arranged on the outer wall of the inlet end of the filter connecting pipe along the radial direction of the outer wall, and a guide rod is vertically arranged above the supporting disc; the filter comprises a filter screen frame which is vertically arranged, wherein end plates are arranged at the upper end and the lower end of the filter screen frame, the end plates at the lower end are of annular structures and are attached to the upper surface of a supporting disc, the end plates at the upper end are of disc-shaped structures, a guide rod penetrates through the end plates at the upper end, and the end plates and the guide rod are in clearance fit.

Description

Backflow filtering structure for air floatation equipment

Technical Field

The utility model relates to the technical field of air floatation equipment, in particular to a reflux filtering structure for air floatation equipment.

Background

At present, air floatation equipment generally flows back water treated by a tail end clean water tank into an air dissolving device for air dissolution, and flows back clean water from the water outlet end of an air floatation machine to the air dissolving device, so that the suspension of the clean water is very low after the air floatation machine is treated under the working condition that the content of suspended matters in water fed into the air floatation machine is low, and no influence is caused on a reflux pump and the air dissolving device; however, if the content of suspended matters in water entering the air floatation machine is high, the suspended matters are treated by air floatation immediately, and the suspended matters enter the air dissolving device directly through the reflux pump at the moment, so that subsequent equipment is seriously blocked and damaged for a long time; the reflux structure on the existing air floatation equipment is generally provided with a Y-shaped filter on a reflux pipe to achieve the filtering effect, because the Y-shaped filter is installed on a pipeline, when the pipeline is blocked, the Y-shaped filter can only be stopped and disassembled for manual cleaning, and because the integration degree of the internal equipment of the air floatation equipment is higher, the problems that the filter is blocked due to the fact that the stopping is needed, the filter disassembling process is complicated, the labor intensity of operators is increased and the like exist.

Disclosure of Invention

The utility model aims to overcome the existing defects, and provides a reflux filtering structure for air floatation equipment, which is used for removing plugs from a filter without stopping the machine, removing the filter to the outside of the equipment for cleaning, eliminating the complicated process of removing the filter, reducing the labor intensity of operators, improving the operation efficiency of the air floatation equipment, ensuring stable and reliable reflux filtering operation and effectively solving the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the reflux filtering structure comprises a reflux pump, a reflux pipe and a filter, wherein the reflux pump is connected with a liquid outlet of the reflux pipe, and a vertically arranged filter connecting pipe is connected to a liquid inlet of the reflux pipe through a bent pipe; a supporting disc is arranged on the outer wall of the inlet end of the filter connecting pipe along the radial direction of the outer wall, and a guide rod is vertically arranged above the supporting disc; the filter comprises a filter screen frame, wherein the filter screen frame comprises support rods which are arranged at equal intervals along the circumferential direction of a support disc, a filter screen is arranged between the support rods, connecting rings are arranged between the top ends of the support rods and between the tail ends of the support rods, end plates are arranged at the outer ends of the connecting rings, threaded connecting holes are correspondingly formed in the end plates and the connecting rings, and the end plates are fixedly connected with the corresponding connecting rings through screws; the end plate at the lower end is of an annular structure and is attached to the upper surface of the supporting disc, the end plate at the upper end is of a disc-shaped structure, the guide rod penetrates through the end plate at the upper end, and the end plate is in clearance fit with the guide rod.

Further, the guide rod and the pipe orifice of the filter connecting pipe are coaxially arranged, and the tail end of the guide rod is fixedly welded with the top surface of the supporting disc through a plurality of connecting plates which are obliquely arranged.

Further, the guide rod is fixedly provided with a brush disc which is matched with the inner diameter of the filter, and the brush disc is positioned at the top end inside the filter.

Further, two lug plates are fixedly arranged on the end plate positioned at the upper end, a rope fastener is arranged at the top end of the guide rod, and a pull rope is arranged between the two lug plates and the rope fastener.

Further, the inlet end of the reflux pump is connected with a flexible rubber hose joint through a pipeline, the other end of the flexible rubber hose joint is connected with a flange ball valve, and the flange ball valve is connected with a liquid outlet of the reflux pipe; and a pressure sensor is also arranged on the return pipe.

Compared with the prior art, the utility model has the beneficial effects that: according to the reflux filtering structure for the air floatation device, the filter is free from shutdown treatment, the filter is free from being removed to the outside of the device for cleaning, the pull rope is pulled to move the filter to a certain height, the pull rope is loosened, the filter falls downwards to collide with the supporting disc to vibrate, and sticky suspended matters are vibrated off through vibration generated by the filter screen; the filter is cleaned of the blockage, so that the complicated process of disassembling the filter is omitted, and the labor intensity of operators is reduced; the flexible rubber soft joint is used for eliminating pipeline installation errors and counteracting running vibration of the reflux pump, and the flange ball valve is used for adjusting the flow of the reflux pump and cutting off the reflux pipeline when the reflux pump is overhauled; the reflux filtering structure is stable and reliable in operation.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of the connection structure of the return pipe and the return pump according to the present utility model;

FIG. 3 is a schematic view of a filter according to the present utility model;

FIG. 4 is a front view of a filter of the present utility model;

FIG. 5 is a schematic view of a grid structure of the present utility model;

FIG. 6 is a schematic view of a filter connecting tube according to the present utility model;

FIG. 7 is a schematic view of the structure of the filter screen frame before lifting;

FIG. 8 is a schematic view of the structure of the filter screen frame after lifting;

FIG. 9 is an enlarged view of a portion of FIG. 7;

fig. 10 is a schematic view of the structure of the present utility model when it is used in an air floatation device.

In the figure: 1 reflux pump, 2 flexible rubber soft joint, 3 flange ball valve, 4 pressure sensor, 5 back flow, 6 filter connecting pipe, 61 supporting disk, 62 guide bar, 621 rope knot, 622 connecting plate, 63 brush disk, 7 filter, 71 filter screen frame, 711 supporting rod, 712 go-between, 713 end plate, 7131 ear plate, 72 filter screen, 8 stay cord.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

Referring to fig. 1-10, the present utility model provides a technical solution: the reflux filtering structure comprises a reflux pump 1, a reflux pipe 5 and a filter 7, wherein the reflux pump 1 is connected with a liquid outlet of the reflux pipe 5, and a liquid inlet of the reflux pipe 5 is connected with a vertically arranged filter connecting pipe 6 through a bent pipe; a supporting disc 61 is arranged on the outer wall of the inlet end of the filter connecting pipe 6 along the radial direction of the outer wall, and a guide rod 62 is vertically arranged above the supporting disc 61; the guide rod 62 is coaxially arranged with the pipe orifice of the filter connecting pipe 6, and the tail end of the guide rod 62 is fixedly welded with the top surface of the supporting disc 61 through a plurality of connecting plates 622 which are obliquely arranged; the filter 7 comprises a filter screen frame 71, the filter screen frame 71 comprises support rods 711 which are arranged at equal intervals along the circumferential direction of the support disc 61, a filter screen 72 is arranged between the support rods 711, connecting rings 712 are arranged between the top ends of the support rods 711 and between the tail ends of the support rods 711, end plates 713 are arranged at the outer ends of the connecting rings 712, threaded connecting holes are correspondingly formed in the end plates 713 and the connecting rings 712, and the end plates 713 are fixedly connected with the corresponding connecting rings 712 through screws; the end plate 713 at the lower end is of an annular structure and is attached to the upper surface of the supporting plate 61, the end plate 713 at the upper end is of a disc-shaped structure, the guide rod 62 penetrates through the end plate 713 at the upper end, and the end plate 713 and the guide rod 62 are in clearance fit; two ear plates 7131 are fixedly arranged on the end plate 713 at the upper end, a rope buckle 621 is arranged at the top end of the guide rod 62, and a pull rope 8 is arranged between the two ear plates 7131 and the rope buckle 621; the return pipe 5 is also provided with a pressure sensor 4.

Working principle:

the filter connecting pipe 6 and the filter 7 are arranged in a clean water tank of the air floatation machine, a liquid outlet of the reflux pump 1 is connected with a dissolved air tank of the air floatation machine, water in the clean water tank enters the filter 7 through the filter screen 72, water in the filter 7 flows into the reflux pipe 5 through a pipe orifice of the filter connecting pipe 6, water in the reflux pipe 5 is pumped into a container tank through the reflux pump 1 for recycling, and the pressure in the reflux pipe 5 is detected through the pressure sensor 4; when the filter 7 is blocked and needs to be cleaned, the pull rope 8 is pulled to enable the filter 7 to move upwards along the guide rod 62, the pull rope 8 is loosened after the filter 7 is moved to a certain height, the filter 7 falls downwards along the guide rod 62 and collides with the supporting disc 61, and sticky suspended matters are shaken off through vibration generated by the filter screen 72, so that the suspended matters on the filter screen 72 are removed.

According to the reflux filtering structure disclosed by the embodiment, the filter 7 is cleared up without stopping the machine, the filter 7 is not required to be removed to the outside of the equipment for cleaning, the pull rope 8 is pulled to enable the filter 7 to move to a certain height, the pull rope 8 is loosened, the filter 7 falls downwards to collide with the supporting disc 61 to vibrate, and the sticky suspended matters are vibrated off through vibration generated by the filter screen 72; the filter 7 removes the blockage, so that the tedious process of disassembling the filter is omitted, and the labor intensity of operators is reduced.

Further, the guide rod 62 is fixedly provided with a brush disc 63 which is matched with the inner diameter of the filter 7, the brush disc 63 is positioned at the top end inside the filter 7, the filter screen 72 is brushed by the brush disc 63 in the process of moving up and down, and the cleaning effect of suspended matters on the filter screen 72 is further improved by the brush disc 63.

Further, the inlet end of the reflux pump 1 is connected with a flexible rubber hose joint 2 through a pipeline, the other end of the flexible rubber hose joint 2 is connected with a flange ball valve 3, and the flange ball valve 3 is connected with a liquid outlet of a reflux pipe 5; the flexible rubber soft joint 2 is used for eliminating pipeline installation errors and counteracting running vibration of the reflux pump 1, and the flange ball valve 3 is used for adjusting the flow of the reflux pump 1 and cutting off the reflux pipeline when the reflux pump 1 is overhauled.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A backward flow filtration for on air supporting equipment, including backwash pump, back flow and filter, its characterized in that: the reflux pump is connected with a liquid outlet of the reflux pipe, and a liquid inlet of the reflux pipe is connected with a vertically arranged filter connecting pipe through a bent pipe; a supporting disc is arranged on the outer wall of the inlet end of the filter connecting pipe along the radial direction of the outer wall, and a guide rod is vertically arranged above the supporting disc; the filter includes the filter screen frame of vertical setting, and the filter screen frame includes the end plate that both ends all are equipped with about it, and the end plate that is located the lower extreme is annular structure and laminating mutually with the upper surface of supporting disk, and the end plate that is located the upper end is discoid structure, and the guide bar runs through the end plate that is located the upper end, end plate and guide bar are clearance fit.

2. A reflux filter structure for an air floatation device as recited in claim 1, wherein: the guide rod and the pipe orifice of the filter connecting pipe are coaxially arranged, and the tail end of the guide rod is fixedly welded with the top surface of the supporting disc through a plurality of connecting plates which are obliquely arranged.

3. A reflux filter structure for an air floatation device as recited in claim 2, wherein: the guide rod is fixedly provided with a brush disc which is matched with the inner diameter of the filter, and the brush disc is positioned at the top end inside the filter.

4. A reflux filter structure for an air floatation device as recited in claim 1, wherein: two lug plates are fixedly arranged on the end plate positioned at the upper end, rope buckles are arranged at the top ends of the guide rods, and pull ropes are arranged between the two lug plates and the rope buckles.

5. A reflux filter structure for an air floatation device as recited in claim 1, wherein: the inlet end of the reflux pump is connected with a flexible rubber hose joint through a pipeline, the other end of the flexible rubber hose joint is connected with a flange ball valve, and the flange ball valve is connected with a liquid outlet of the reflux pipe; and a pressure sensor is also arranged on the return pipe.

6. A reflux filter structure for an air floatation device as recited in claim 1, wherein: the filter screen frame includes the bracing piece that equidistant being equipped with along supporting disk circumferencial direction, is equipped with the filter screen between the bracing piece, all is equipped with the go-between the top of bracing piece and between the terminal, two the end plate set up respectively in two the outside end of go-between, threaded connection hole has been seted up to last mutual correspondence of end plate and go-between, end plate passes through screw and rather than corresponding go-between fixed connection.