CN222400445U - A sewage pretreatment device - Google Patents

Abstract

The utility model relates to the technical field of sewage pretreatment tools, in particular to a sewage pretreatment device which comprises a lower filter cartridge, wherein a filter screen is fixedly arranged on the bottom wall of the lower filter cartridge, a water outlet drum is fixedly arranged on the bottom surface of the lower filter cartridge, the filter screen is positioned right above the water outlet drum, an impurity hole is formed in one side wall of the lower filter cartridge, an impurity discharge hopper is fixedly arranged on the wall of the impurity hole, a return pipe is fixedly arranged on the bottom plate body of the impurity discharge hopper, the tail end of the return pipe is fixedly arranged on the water outlet drum, a water seepage net is fixedly arranged on the top wall of the return pipe, a rotating shaft is rotationally connected between the front side plate body and the rear side plate body of the lower filter cartridge, a plurality of scraping plates are fixedly arranged on the rotating shaft and used for scraping impurities on the filter screen until the impurities fall out from the impurity hole part, a top cover is fixedly arranged on the top surface of the lower filter cartridge, and a water inlet pipe is fixedly arranged on the top cover. The utility model can perform impurity pretreatment and impurity cleaning operation and is convenient to use.

Description

Sewage pretreatment device

Technical Field

The utility model relates to the technical field of sewage pretreatment tools, in particular to a sewage pretreatment device.

Background

The shortage of water resources is a common problem worldwide, along with the growth of population and the development of economy, the demand of water resources is continuously increased, and the available water resources are increasingly reduced, so that the treatment and recycling of sewage are particularly important, corresponding sewage treatment equipment is usually used when sewage treatment operation is carried out at present, but the sewage treatment equipment generally only can carry out treatment operation on the sewage with smaller particle impurity content and smaller particle size, and when the sewage contains more and larger impurities, a corresponding sewage pretreatment device is required to be additionally arranged on the sewage treatment equipment to carry out pretreatment operation on the sewage.

The sewage pretreatment device on the market generally adopts the filter screen to realize that more and great impurity in the sewage are filtered and reach pretreatment effect, but this kind of sewage pretreatment device has the defect that can not initiatively outwards clear away the impurity on the filter screen when using, along with the impurity pile up more and more on the follow-up filter screen, can influence the filter effect of filter screen, and still need the manual work to clear up regularly, bring inconvenience for the user. In view of this, we propose a sewage pretreatment device.

Disclosure of utility model

The utility model aims to provide a sewage pretreatment device which is used for solving the defects in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

The utility model provides a sewage pretreatment device, includes down the cartridge filter, fixed mounting has the filter screen on the diapire of cartridge filter down, fixed mounting has a play water drum on the bottom surface of cartridge filter down, the filter screen is located directly over the play water drum, be provided with impurity hole on a lateral wall of cartridge filter down, fixed mounting has the impurity discharge bucket that outwards stretches out on the pore wall of impurity hole, fixed mounting has the back flow on the bottom plate body of impurity discharge bucket, the terminal fixed mounting of back flow is in on the play water drum, fixed mounting has the infiltration net on the top pipe wall of back flow, rotate between the front and back both sides plate body of cartridge filter down and be connected with the pivot, fixed mounting has a plurality of scraping boards that are cyclic annular equidistant range in the pivot, scrape the material board and be used for scraping impurity on the filter screen to fall out from impurity hole position, fixed mounting has the top cap on the top surface of cartridge filter down, fixed mounting has the inlet tube on the top cap.

Preferably, the filter screen is located in the lower projection of the water outlet barrel, and is used for enabling water to enter the water outlet barrel along the filter screen, so that the wastewater is discharged.

Preferably, the impurity discharging hopper is inclined downwards by 45-60 degrees and is used for falling-out operation of scraps and impurities.

Preferably, the impurity hole is located below the rotating shaft, and is used for discharging when the scraping plate rotates to the impurity hole, and the scraping plate is inclined downwards by 30-45 degrees.

Preferably, the water inlet pipe is positioned at the position of the top cover deviating from the center of the top cover and is used for impacting water flow to the scraping plate to drive the scraping plate to rotate.

Preferably, the surface of the scraping plate is provided with a smooth layer, and the smooth layer is used for reducing friction, so that impurities are discharged outwards from the impurity hole part along the scraping plate more smoothly.

Preferably, the top cover is provided with a manhole, and the manhole is used for maintenance operation.

Preferably, a plugging cover plate is hinged to the wall of one side of the access hole through a hinge, and the other end part of the plugging cover plate is fixedly connected with the top cover through a fastening bolt, so that plugging operation is realized on the access hole part, and water is prevented from splashing outwards.

Compared with the prior art, the utility model has the beneficial effects that:

1. According to the utility model, the filtering operation of wastewater by using the filter screen is realized through the lower filter cartridge and the filter screen, in addition, through the scraping plate and the water inlet pipe, water is impacted onto the scraping plate after entering from the water inlet pipe part, the scraping plate is driven to rotate, and after the scraping plate rotates, impurities on the filter screen are pushed to fall out from the impurity hole part, so that the impurity cleaning operation is realized, and the effect of actively cleaning the impurities on the filter screen is achieved.

2. According to the utility model, through the water seepage net, water entering the impurity discharge hopper can flow back to the water outlet cylinder along the return pipe through the water seepage net, and in addition, through the arranged overhaul hole and the plugging cover plate, the plugging cover plate is convenient to open for cleaning and overhaul operation at the overhaul hole position.

Drawings

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

FIG. 2 is a schematic diagram of an explosive structure according to the present utility model;

FIG. 3 is a schematic view of a portion of the structure of the present utility model;

FIG. 4 is a cross-sectional view of a lower filter cartridge and a water outlet cartridge of the present utility model;

fig. 5 is a cross-sectional view of the impurity discharging hopper and the return pipe of the present utility model.

The meaning of each reference numeral in the figures is:

1. The filter comprises a lower filter cylinder, 10, impurity holes, 11, a filter screen, 12, a water outlet cylinder, 13, an impurity discharge hopper, 14, a return pipe, 15, a water seepage net, 16, a rotating shaft, 17, a scraping plate, 171 and a smooth layer;

2. a top cover; 20 parts of water inlet pipe, 21 parts of overhaul hole and 22 parts of plugging cover plate.

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.

Referring to fig. 1-5, the utility model provides a technical scheme that the sewage pretreatment device comprises a lower filter cartridge 1, wherein a filter screen 11 is fixedly arranged on the bottom wall of the lower filter cartridge 1, the filter screen 11 is used for filtering wastewater, a water outlet cylinder 12 is fixedly arranged on the bottom surface of the lower filter cartridge 1, the filter screen 11 is positioned right above the water outlet cylinder 12, the filter screen 11 is positioned in the lower projection of the water outlet cylinder 12, and is used for allowing water to enter the water outlet cylinder 12 along the filter screen 11 so as to realize the discharge operation of wastewater;

Specifically, an impurity hole 10 is formed in one side wall of the lower filter cartridge 1, an impurity discharge hopper 13 which extends outwards is fixedly arranged on the wall of the impurity hole 10, a return pipe 14 is fixedly arranged on the bottom plate body of the impurity discharge hopper 13, the tail end of the return pipe 14 is fixedly arranged on the water outlet barrel 12, and a water seepage net 15 is fixedly arranged on the top pipe wall of the return pipe 14, so that water entering the impurity discharge hopper 13 can pass through the water seepage net 15 and enter the water outlet barrel 12 along the return pipe 14;

Specifically, the pivot 16 is connected with in the rotation between the front and back both sides plate body of lower cartridge filter 1, fixed mounting has a plurality of scraping plates 17 that are cyclic annular equidistant range on the pivot 16, scraping plates 17 are used for scraping the impurity on the filter screen 11 to falling out from impurity hole 10 position, impurity hole 10 is located the below of pivot 16 for scraping plates 17 rotates to impurity hole 10 position after, scraping plates 17 is 30 ~45 of downward sloping setting and carries out the operation of unloading, when making scraping plates 17 rotate, can give the impurity of pushing the filter screen 11 position to outwards discharge from impurity hole 10 and impurity discharge hopper 13 position, accomplish piece discharge operation.

In this embodiment, fixed mounting has top cap 2 on the top surface of cartridge filter 1 down, and fixed mounting has inlet tube 20 on the top cap 2, is convenient for advance water operation, and top cap 2 can play the effect that prevents water and splash.

Specifically, the impurity discharging hopper 13 is inclined downward by 45-60 degrees and is used for falling-out operation of scraps and impurities.

Further, the water inlet pipe 20 is located at a position, deviating from the center, of the top cover 2, and is used for impacting water flow to the scraping plate 17 to drive the scraping plate 17 to rotate, so that pushing operation of impurities is achieved.

In addition, the surface of the scraper 17 is provided with a smooth layer 171, the smooth layer 171 can be made by mirror polishing, and the smooth layer 171 is used for reducing friction, so that impurities can be discharged outwards from the impurity hole 10 along the scraper 17 more smoothly.

It should be noted that the top cover 2 is provided with a manhole 21, and the manhole 21 is used for maintenance operation.

It is worth noting that a plugging cover plate 22 is hinged to the wall of one side of the access hole 21 through a hinge, the other end of the plugging cover plate 22 is fixedly connected with the top cover 2 through a fastening bolt, so that plugging operation is carried out on the access hole 21, and water is prevented from splashing outwards.

When the sewage pretreatment device is used, the water inlet pipe 20 is connected with external wastewater and is led into a pipeline, the wastewater is impacted onto the scraping plate 17 along with the wastewater entering along the water inlet pipe 20, the scraping plate 17 can be driven to rotate, in addition, the wastewater downwards flows through the filter screen 11 to finish the filtering operation, impurities are blocked on the filter screen 11, the filtered wastewater is discharged outwards along the water outlet barrel 12, in addition, after the scraping plate 17 rotates, the impurities in the lower filter barrel 1 can be pushed to be discharged from the impurity holes 10 and the impurity discharge hopper 13, and the water entering the impurity discharge hopper 13 can penetrate through the water seepage net 15 and then enter the water outlet barrel 12 through the return pipe 14, so that the pretreatment operation is finished.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (8)

1. A sewage pretreatment device comprises a lower filter cartridge (1), and is characterized in that a filter screen (11) is fixedly installed on the bottom wall of the lower filter cartridge (1), a water outlet drum (12) is fixedly installed on the bottom surface of the lower filter cartridge (1), the filter screen (11) is located right above the water outlet drum (12), an impurity hole (10) is formed in one side wall of the lower filter cartridge (1), an impurity discharge hopper (13) which extends outwards is fixedly installed on the hole wall of the impurity hole (10), a return pipe (14) is fixedly installed on the bottom plate body of the impurity discharge hopper (13), a water seepage net (15) is fixedly installed on the top pipe wall of the return pipe (14), a rotating shaft (16) is connected between the front side plate body and the rear side plate body of the lower filter cartridge (1), a plurality of scraping plates (17) which are arranged at equal intervals in a ring shape are fixedly installed on the rotating shaft (16), and a top cover (20) is fixedly installed on the top cover (2) of the filter screen (11) and is fixedly installed on the top cover (2).

2. The wastewater pretreatment device according to claim 1, wherein the filter screen (11) is positioned inside the lower projection of the water outlet cylinder (12) for water to enter the water outlet cylinder (12) along the filter screen (11).

3. The sewage pretreatment device according to claim 1, wherein the impurity discharging hopper (13) is inclined downward by 45-60 degrees for falling-out operation of chips and impurities.

4. The sewage pretreatment device according to claim 1, wherein the impurity hole (10) is located below the rotating shaft (16), and the scraping plate (17) is arranged to be inclined downwards by 30-45 degrees to perform discharging operation after the scraping plate (17) rotates to the impurity hole (10).

5. The sewage pretreatment device according to claim 1, wherein the water inlet pipe (20) is positioned on the top cover (2) at a position deviating from the center of the top cover, and is used for impacting water flow onto the scraping plate (17) to drive the scraping plate (17) to rotate.

6. The sewage pretreatment apparatus according to claim 5, wherein a surface of the scraper plate (17) is provided with a smooth layer (171), and the smooth layer (171) is used for reducing friction.

7. The sewage pretreatment device according to claim 1, wherein the top cover (2) is provided with a manhole (21), and the manhole (21) is used for maintenance operation.

8. The sewage pretreatment device according to claim 7, wherein a plugging cover plate (22) is hinged to the wall of one side of the access hole (21) through a hinge, and the other end part of the plugging cover plate (22) is fixedly connected with the top cover (2) through a fastening bolt.