CN216273591U - Solid garbage filtering device for sewage treatment - Google Patents

Abstract

The utility model belongs to the technical field of sewage treatment, and particularly discloses a solid garbage filtering device for sewage treatment, which comprises a first filtering mechanism and a second filtering mechanism, wherein the second filtering mechanism comprises a filtering box, a connecting pipe, a first filtering net, a second filtering net and a first rotating shaft, the filtering box is communicated with the first filtering mechanism through the connecting pipe, the first filtering net and the second filtering net are fixedly connected inside the filtering box, the first filtering net is positioned above the second filtering net, the aperture of a filtering hole of the first filtering net is larger than that of a filtering hole of the second filtering net, the bottom end of the first rotating shaft sequentially penetrates through the filtering box, the first filtering net and the second filtering net, a motor is fixedly connected onto the filtering box, an output shaft of the motor is connected with a first rotating shaft belt, and a first brushing unit for brushing the surfaces of the first filtering net and the second filtering net is arranged on the first rotating shaft. The utility model can prevent the filtered solid garbage from standing and accumulating on the surfaces of the first filter screen and the second filter screen, thereby improving the filtering efficiency of the first filter screen and the second filter screen.

Description

Solid garbage filtering device for sewage treatment

Technical Field

The utility model relates to the technical field of sewage treatment, in particular to a solid garbage filtering device for sewage treatment.

Background

Municipal sewage is a generic term for sewage that is discharged into town sewage systems. In the combined drainage system, production wastewater and trapped rainwater are also included. Municipal sewage mainly comprises domestic sewage and industrial sewage, and is collected by a municipal drainage pipe network and conveyed to a sewage treatment plant for treatment, and solid garbage in the sewage needs to be filtered out firstly in the sewage treatment process. However, when the existing sewage treatment device filters solid garbage, the solid garbage is accumulated on the filter screen and cannot be removed in time, so that the filter holes are blocked, and the sewage filtering efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a solid waste filtering device for sewage treatment, which aims to solve the problem that the conventional sewage treatment device is low in filtering efficiency when solid waste is filtered.

In order to achieve the purpose, the utility model provides the following basic scheme: solid waste filtering device for sewage treatment comprises a first filtering mechanism and a second filtering mechanism, wherein the first filtering mechanism comprises a filtering tank and a magnet, the magnet is fixedly connected in the filtering tank and divides the filtering tank into two parts, the second filtering mechanism comprises a filtering box, a connecting pipe, a first filtering net, a second filtering net and a first rotating shaft, the filtering box is communicated with the filtering tank through the connecting pipe, the first filtering net and the second filtering net are fixedly connected in the filtering box, the first filtering net is positioned above the second filtering net, the aperture of a filtering hole of the first filtering net is larger than that of the second filtering net, the bottom end of the first rotating shaft sequentially penetrates through the top end of the filtering box, the first filtering net and the second filtering net and is rotationally connected with the top end of the filtering box, the first filtering net and the second filtering net, the top end of the filtering box is fixedly connected with a motor, and the output shaft of the motor is connected with a first rotating shaft belt, the first rotating shaft is provided with a first cleaning unit used for cleaning the surfaces of the first filter screen and the second filter screen, the bottom end of the filter box is communicated with a drain pipe, and the drain pipe is provided with a drain valve.

The principle and the beneficial effects of the utility model are as follows: when solid garbage in sewage is filtered, firstly, the sewage is discharged into a filtering tank, the sewage discharged into the filtering tank is accumulated on one side of a magnet, the magnet can adsorb the iron garbage in the sewage in the accumulation process of the sewage, when the accumulated liquid level is higher than the top end of the magnet, the sewage flows into the other side of the magnet, flows into a filtering box along a connecting pipe and falls on the top end of a first filtering net, the sewage falls on the top end of a second filtering net after being filtered by the first filtering net, and the sewage falls on the bottom end of the filtering box after being filtered by the second filtering net and is discharged by a drain pipe; and in the process of filtering sewage by the first filter screen and the second filter screen, the motor drives the first rotating shaft to rotate, and the first rotating shaft rotates to drive the first cleaning unit to stir solid garbage accumulated on the surfaces of the first filter screen and the second filter screen, so that the solid garbage is prevented from standing and accumulating on the surfaces of the first filter screen and the second filter screen to block filter holes. Compared with the prior art, the utility model can prevent the filtered solid garbage from standing and accumulating on the surfaces of the first filter screen and the second filter screen, thereby improving the filtering efficiency of the first filter screen and the second filter screen; in addition, iron garbage in sewage can be removed while solid garbage is filtered, and the iron garbage can be conveniently and intensively recovered.

Scheme two, this is the preferred of basic scheme, first unit of brushing includes first connecting plate and second connecting plate, first connecting plate and second connecting plate all with first pivot rigid coupling, first connecting plate is located the top of first filter screen, the second connecting plate is located between second filter screen and the first filter screen, be equipped with first brush hair on the first connecting plate, the free end of first brush hair offsets with first filter screen, be equipped with the second brush hair on the second connecting plate, the free end of second brush hair offsets with the second filter screen. In the process that sewage is filtered by the first filter screen and the second filter screen, the motor drives the first rotating shaft to rotate, the first rotating shaft rotates to drive the first connecting plate and the second connecting plate to rotate, and when the first connecting plate and the second connecting plate rotate, the first bristles and the second bristles respectively stir solid garbage accumulated on the surfaces of the first filter screen and the second filter screen, so that the solid garbage is prevented from standing and accumulating on the surfaces of the first filter screen and the second filter screen to block filter holes.

And a third filter screen is arranged at the joint of the connecting pipe and the filter tank, and the aperture of the third filter screen is larger than that of the second filter screen. Set up the third filter screen, can filter the solid waste of large granule before the solid waste in the sewage is filtered to first filter screen to improve the filtration efficiency of first filter screen.

A fourth scheme is preferable to the third scheme, the first filtering mechanism further comprises a second cleaning unit for cleaning a third filter screen, the second cleaning unit comprises an L-shaped movable plate, a second rotating shaft and an L-shaped support, a spring is connected between one side of the L-shaped movable plate and the top end of the filter tank, a third connecting plate is fixedly connected onto the L-shaped movable plate and is opposite to the third filter screen, third bristles are arranged on the third connecting plate, free ends of the third bristles are abutted against the third filter screen, the L-shaped support is fixedly connected to the top end of the filter tank, a supporting plate is fixedly connected onto the L-shaped support, one end of the second rotating shaft penetrates through the supporting plate and is rotatably connected with the supporting plate, a first bevel gear is connected onto an output shaft of the motor, a second bevel gear is connected onto the second rotating shaft, and the first bevel gear is meshed with the second bevel gear, and the second rotating shaft is connected with a cam for extruding the L-shaped movable plate. When the motor rotates, the first bevel gear drives the second bevel gear to rotate, the second bevel gear rotates to drive the second rotating shaft to rotate, the second rotating shaft rotates to drive the cam to rotate, the cam contacts with the L-shaped movable plate in the rotating process of the cam and downwards extrudes the L-shaped movable plate, the L-shaped movable plate drives the third bristles on the third connecting plate to brush solid garbage attached to the surface of the third filter screen, after the cam is separated from the L-shaped movable plate, the L-shaped movable plate upwards resets under the action of spring stress, and the third filter screen can be intermittently brushed through the steps, so that the third filter screen is prevented from being blocked by the solid garbage.

And a fifth scheme is preferable to the fourth scheme, wherein a limiting plate is fixedly connected to the side surface of the filter tank, and the L-shaped movable plate penetrates through the limiting plate and is in sliding connection with the limiting plate. The limiting plate is arranged, so that the L-shaped movable plate can be prevented from deviating when moving up and down.

And a sixth scheme is preferable to the fifth scheme, and the bottom end of the filter box is a concave surface. The bottom end of the filter box is set to be a concave surface, so that filtered sewage can be conveniently discharged.

And a seventh scheme is the optimization of the sixth scheme, two impurity discharging ports for discharging the garbage on the surfaces of the first filter screen and the second filter screen are arranged on the side surface of the filter box, each impurity discharging port is provided with a baffle, and the baffles are connected with the filter box through bolts. The trash discharging port is arranged, so that solid trash filtered by the first filter screen and the second filter screen can be conveniently and regularly discharged by workers.

Drawings

FIG. 1 is a schematic view showing the construction of a solid waste filtration apparatus for sewage treatment according to the present invention.

Detailed Description

The present invention will be described in further detail below by way of specific embodiments:

reference numerals in the drawings of the specification include: the filter tank comprises a filter tank 1, a magnet 2, a third filter screen 3, third bristles 4, a third connecting plate 5, an L-shaped movable plate 6, a limiting plate 7, a spring 8, a cam 9, a second rotating shaft 10, a supporting plate 11, an L-shaped support 12, a second bevel gear 13, a first bevel gear 14, a motor 15, a first rotating shaft 16, a filter box 17, a first filter screen 18, a first connecting plate 19, first bristles 20, a second filter screen 21, second bristles 22, a second connecting plate 23, a baffle 24, a drain pipe 25, a drain valve 26 and a connecting pipe 27.

As shown in fig. 1: the solid garbage filtering device for sewage treatment comprises a first filtering mechanism and a second filtering mechanism, wherein the second filtering mechanism comprises a filtering box 17, a first filtering net 18, a second filtering net 21 and a first rotating shaft 16, the first filtering net 18 and the second filtering net 21 are fixedly connected inside the filtering box 17, the first filtering net 18 is positioned above the second filtering net 21, the aperture of a filtering hole of the first filtering net 18 is larger than that of the second filtering net 21, the bottom end of the first rotating shaft 16 sequentially penetrates through the top end of the filtering box 17, the first filtering net 18 and the second filtering net 21 and is rotatably connected with the top end of the filtering box 17 and the first filtering net 18 and the second filtering net 21 through a bearing, the top end of the filtering box 17 is fixedly connected with a motor 15, an output shaft of the motor 15 is connected with a belt of the first rotating shaft 16, a first cleaning unit for cleaning the surfaces of the first filtering net 18 and the second filtering net 21 is arranged on the first rotating shaft 16, the first cleaning unit comprises a first connecting plate 19 and a second connecting plate 23, the first connecting plate 19 and the second connecting plate 23 are fixedly connected with the first rotating shaft 16, the first connecting plate 19 is positioned above the first filter screen 18, the second connecting plate 23 is positioned between the second filter screen 21 and the first filter screen 18, first bristles 20 are arranged on the first connecting plate 19, the free ends of the first bristles 20 are abutted against the first filter screen 18, second bristles 22 are arranged on the second connecting plate 23, and the free ends of the second bristles 22 are abutted against the second filter screen 21; the bottom end of the filter box 17 is a concave surface, the bottom end of the filter box 17 is communicated with a drain pipe 25, a drain valve 26 is arranged on the drain pipe 25, two impurity discharging ports for discharging garbage on the surfaces of the first filter screen 18 and the second filter screen 21 are formed in the side surface of the filter box 17, a baffle 24 is arranged at each impurity discharging port, and the baffles 24 are connected with the filter box 17 through bolts.

The first filtering mechanism comprises a filtering tank 1, a third filtering net 3, a magnet 2 and a second cleaning unit for cleaning the third filtering net 3, a connecting pipe 27 is communicated between the filtering tank 17 and the filtering tank 1, the third filtering net 3 is arranged at the joint of the connecting pipe 27 and the filtering tank 1, the aperture of the third filtering net 3 is larger than that of a filtering hole of the second filtering net 21, the bottom end of the magnet 2 is fixedly connected with the bottom end of the filtering tank 1, the front side and the rear side of the magnet 2 are fixedly connected with the front side and the rear side of the filtering tank 1, and the filtering tank 1 is divided into a left part and a right part by the magnet 2; the second cleaning unit comprises an LL-shaped movable plate 6, a second rotating shaft 10 and an LL-shaped bracket 12, wherein a spring 8 is connected between one side of the LL-shaped movable plate 6 and the top end of the filter tank 1, a third connecting plate 5 is fixedly connected to the LL-shaped movable plate 6, the third connecting plate 5 is right opposite to a third filter screen 3, third bristles 4 are arranged on the third connecting plate 5, the free end of each third bristle 4 is abutted against the third filter screen 3, a limiting plate 7 is fixedly connected to the side surface of the filter tank 1, the LL-shaped movable plate 6 penetrates through the limiting plate 7 and is in sliding connection with the limiting plate 7, the LL-shaped bracket 12 is fixedly connected to the top end of the filter tank 17, a supporting plate 11 is fixedly connected to the LL-shaped bracket 12, one end of the second rotating shaft 10 penetrates through the supporting plate 11 and is in rotating connection with the supporting plate 11, a first bevel gear 14 is connected to an output shaft of a motor 15, a second bevel gear 13 is connected to the second rotating shaft 10, and the first bevel gear 14 is meshed with the second bevel gear 13, the cam 9 for pressing the LL-shaped flap 6 is connected to the second rotating shaft 10.

The implementation manner of the embodiment is as follows: when solid waste in sewage is filtered, firstly, sewage is discharged into the filtering tank 1, the sewage discharged into the filtering tank 1 is accumulated on one side of the magnet 2, the magnet 2 can adsorb the iron waste in the sewage in the accumulation process, when the accumulated liquid level is higher than the top end of the magnet 2, the sewage flows into the other side of the magnet 2, then flows into the filtering tank 17 along the connecting pipe 27 after being filtered by the third filtering net 3 and falls on the top end of the first filtering net 18, the sewage falls on the top end of the second filtering net 21 after being filtered by the first filtering net 18, and the sewage falls on the bottom end of the filtering tank 17 after being filtered by the second filtering net 21 and is discharged by the water discharge pipe 25; in the process that first filter screen 18 and second filter screen 21 filtered sewage, motor 15 drives first pivot 16 and rotates, and first pivot 16 rotates and drives first connecting plate 19 and second connecting plate 23 and rotate, and when first connecting plate 19 and second connecting plate 23 rotated, first brush hair 20 and second brush hair 22 stirred first filter screen 18 and the accumulational solid rubbish in second filter screen 21 surface respectively, prevented that solid rubbish from stewing and piling up at first filter screen 18 and second filter screen 21 surface blocking filtration pore.

When the motor 15 rotates, the first bevel gear 14 drives the second bevel gear 13 to rotate, the second bevel gear 13 rotates to drive the second rotating shaft 10 to rotate, the second rotating shaft 10 rotates to drive the cam 9 to rotate, the cam 9 contacts with the LL-shaped movable plate 6 in the rotating process, and the LL-shaped movable plate 6 is downwards extruded, the LL-shaped movable plate 6 drives the third bristles 4 on the third connecting plate 5 to brush the solid garbage attached to the surface of the third filter screen 3, after the cam 9 is separated from the LL-shaped movable plate 6, the LL-shaped movable plate 6 upwards resets under the stress of the spring 8, the third filter screen 3 can be intermittently brushed through the steps, and therefore the third filter screen 3 is prevented from being blocked by the solid garbage.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims (7)

1. The solid garbage filtering device for sewage treatment is characterized by comprising a first filtering mechanism and a second filtering mechanism, wherein the first filtering mechanism comprises a filtering tank and a magnet, the magnet is fixedly connected in the filtering tank and divides the filtering tank into two parts, the second filtering mechanism comprises a filtering box, a connecting pipe, a first filtering net, a second filtering net and a first rotating shaft, the filtering box is communicated with the filtering tank through the connecting pipe, the first filtering net and the second filtering net are fixedly connected in the filtering box, the first filtering net is positioned above the second filtering net, the aperture of a filtering hole of the first filtering net is larger than that of the second filtering net, the bottom end of the first rotating shaft sequentially penetrates through the top end of the filtering box, the first filtering net and the second filtering net and is rotatably connected with the top end of the filtering box, the first filtering net and the second filtering net, and the top end of the filtering box is fixedly connected with a motor, the output shaft of motor is connected with first pivot belt, be equipped with the first unit of brushing that is used for brushing first filter screen and second filter screen surface on the first pivot, the bottom intercommunication of rose box has the drain pipe, be equipped with the drain valve on the drain pipe.

2. The solid waste filtering device for sewage treatment as claimed in claim 1, wherein the first brushing unit comprises a first connecting plate and a second connecting plate, the first connecting plate and the second connecting plate are both fixedly connected with the first rotating shaft, the first connecting plate is located above the first filter screen, the second connecting plate is located between the second filter screen and the first filter screen, first bristles are arranged on the first connecting plate, free ends of the first bristles abut against the first filter screen, second bristles are arranged on the second connecting plate, and free ends of the second bristles abut against the second filter screen.

3. The solid waste filtering device for sewage treatment as set forth in claim 2, wherein a third filter screen is provided at a connection of the connecting pipe and the filtering tank, and the aperture of the third filter screen is larger than that of the second filter screen.

4. The solid waste filtering device for sewage treatment as claimed in claim 3, wherein the first filtering mechanism further comprises a second brushing unit for brushing a third filter screen, the second brushing unit comprises an L-shaped movable plate, a second rotating shaft and an L-shaped support, a spring is connected between one side of the L-shaped movable plate and the top end of the filtering tank, a third connecting plate is fixedly connected to the L-shaped movable plate, the third connecting plate is just opposite to the third filter screen, third bristles are arranged on the third connecting plate, the free ends of the third bristles abut against the third filter screen, the L-shaped support is fixedly connected to the top end of the filtering tank, a supporting plate is fixedly connected to the L-shaped support, one end of the second rotating shaft penetrates through the supporting plate and is rotatably connected with the supporting plate, a first bevel gear is connected to the output shaft of the motor, and a second bevel gear is connected to the second rotating shaft, the first bevel gear is meshed with the second bevel gear, and the second rotating shaft is connected with a cam for extruding the L-shaped movable plate.

5. The solid waste filtering device for sewage treatment as claimed in claim 4, wherein a limiting plate is fixedly connected to the side of the filtering tank, and the L-shaped movable plate penetrates through the limiting plate and is slidably connected with the limiting plate.

6. The solid waste filtration device for sewage treatment as claimed in claim 5, wherein the bottom end of the filtration tank is concave.

7. The solid waste filtering device for sewage treatment as claimed in claim 6, wherein the side of the filtering box is provided with two trash discharging openings for discharging the trash on the surface of the first filtering net and the second filtering net, each trash discharging opening is provided with a baffle plate, and the baffle plate is connected with the filtering box through bolts.

Images