CN217367532U

CN217367532U - Dross clearing device

Info

Publication number: CN217367532U
Application number: CN202221396587.9U
Authority: CN
Inventors: 阳重阳; 梁辉政; 廖凤珍; 邓根明; 陈嘉祺; 周俊芳
Original assignee: Guangdong Beikong Environmental Protection Equipment Co ltd
Current assignee: Guangdong Beikong Environmental Protection Equipment Co ltd
Priority date: 2022-06-06
Filing date: 2022-06-06
Publication date: 2022-09-06
Anticipated expiration: 2032-06-06

Abstract

The embodiment of the application provides a dross clearing device belongs to sewage treatment technical field. The scum removing device is used for removing scum in the biochemical tank and comprises a scum box, a filter screen and a scum collecting tank, the scum box is arranged on one side of the biochemical tank, a treatment cavity is arranged in the scum box and is provided with a water inlet and a water outlet which are vertically arranged, and the water inlet is used for introducing sewage with scum into the treatment cavity; the filter screen is laid in the treatment cavity and positioned between the water inlet and the water outlet, the filter screen is positioned below the water inlet, and the filter screen is used for filtering the sewage passing through the treatment cavity so as to prevent floating slag from passing through the filter screen; the slag collecting groove is arranged on one side of the filter screen and is used for collecting filter residues on the filter screen; the filter screen is arranged in the treatment cavity in an inclined manner, and the slag collecting groove is positioned on one side of the lower end of the filter screen. The scum clearing device can effectively clear scum, avoids the phenomenon that the filter screen is blocked, and improves the clearing efficiency of the scum.

Description

Scum clearing device

Technical Field

The application relates to the technical field of sewage treatment, in particular to a scum removing device.

Background

At present, current dross collection processing apparatus for sewage treatment, general cost of manufacture is high, the treatment effect is poor, the installation is more troublesome with the dismantlement, waste time and energy, some dross collection processing apparatus, the dross in collecting sewage is handled and is collected can not be thorough, take place easily and pile up, dross collection device in addition, hardly reduce the flow speed of dross in the sewage, make to deposit comparatively slowly, can not in time discharge dross, inconvenient collection, make the treatment effect of dross comparatively poor, can't satisfy the requirement of current people to this product so far away.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a dross clearing device can effectively clear away the dross, avoids the phenomenon that the filter screen blockked up to appear, has improved the efficiency of cleaing away of dross.

The embodiment of the application provides a scum clearing device, which is used for clearing scum in a biochemical pool and comprises a scum discharge box, a filter screen and a scum collecting tank, wherein the scum discharge box is arranged on one side of the biochemical pool, a treatment cavity is arranged in the scum discharge box, the treatment cavity is provided with a water inlet and a water outlet which are arranged up and down, and the water inlet is used for introducing sewage with scum into the treatment cavity; the filter screen is laid in the treatment cavity and positioned between the water inlet and the water outlet, the filter screen is positioned below the water inlet, and the filter screen is used for filtering the sewage passing through the treatment cavity so as to prevent floating slag from passing through the filter screen; the slag collecting groove is arranged on one side of the filter screen and is used for collecting filter residues on the filter screen; wherein, the filter screen is the slope setting in the treatment chamber, and the slag trap is located one side of filter screen low side.

In this scheme, be equipped with dross clearing device through the one side at biochemical pond, sewage and the surperficial dross in the biochemical pond enter into to arranging the sediment incasement through the water inlet, owing to arrange the sediment incasement and install the filter screen, the filter screen can filter the sewage of arranging the sediment incasement portion to biochemical pond inflow, can effectively filter the dross in the sewage to scumming to in the sewage, the sewage after the filtration passes through the delivery port and gets into the biochemical pond once more. More importantly, through setting up the filter screen slope in the scum box, the accumulational dross of inclined plane on the filter screen can move to the low side gradually under the action of gravity to because be provided with the album sediment groove in the low side of filter screen, the dross on the filter screen can be in album sediment inslot by automatic entering under the action of gravity, utilizes the album sediment groove can carry out automatic collection to the dross. Consequently, the slope through the filter screen sets up, has not only avoided the easy phenomenon that blocks up of appearing of filter screen, can also shift dross to album sediment groove one side to the realization only needs regularly to clear up alright to the dross of album sediment inslot to the automatic collection of dross, has improved the clear efficiency of dross greatly.

In some embodiments, the anti-blocking component is arranged in the slag discharging box and used for guiding the filter residues on the filter screen to one side of the slag collecting groove so as to prevent the filter screen from being blocked by the filter residues.

Among the above-mentioned technical scheme, although the slope setting of filter screen can guide partly filter residue to album sediment groove one side removal and shift, but the gradient of filter screen is limited, still can lead to partial filter residue to pile up on the filter screen to filter screen blocking's phenomenon can appear, consequently through arrange the sediment incasement and be provided with and prevent stifled subassembly, prevent stifled subassembly and can guide the transfer with the filter residue on the filter screen to album sediment groove one side, thereby reduce the probability that the filter residue blockked up the filter screen.

In some embodiments, the anti-blocking assembly comprises a rotating roller and a plurality of blades, wherein the rotating roller is rotatably arranged at one side in the slag discharging box and is positioned above the filter screen; the blades are arranged at intervals along the circumferential direction of the rotating roller, the outer sides of the blades can be in contact with the filter screen, the blades are positioned below the water inlet, and the outer sides of the blades can push and guide filter residues on the filter screen towards one side of the residue collecting groove; wherein, the filter screen is arc platelike plastic component, and the surface of filter screen is seted up a plurality of holes of permeating water, and the radian of filter screen matches with the rotation orbit of blade.

Among the above-mentioned technical scheme, install the live-rollers through rotating in the scum box is inside, the outside of blade can contact with the filter screen, because the blade is located the water inlet below, when utilizing the water inlet to introduce sewage in the scum box, the blade can drive the live-rollers rotation under the impact of rivers, and the radian of filter screen matches with the rotation orbit of blade, thereby the blade can promote the transfer with the dross on the filter screen to the scum collecting tank, avoid the dross to stop on the filter screen, reduce the probability that the filter screen was blockked up to the filter residue.

In some embodiments, the outer side of the blade is sleeved with a resilient contact.

Among the above-mentioned technical scheme, the cover is equipped with the elastic contact portion through the outside at the blade, and when elastic contact portion contacted with the filter screen like this, can reduce the decibel that blade and filter screen friction produced to the noise reduction, and the elastic contact portion can provide the buffer power for the blade, avoids taking place the phenomenon of rigidity collision between blade and the filter screen.

In some embodiments, the anti-blocking assembly comprises an air pump, an air supply pipe and a plurality of aeration spray pipes, wherein the air pump is arranged on one side of the slag discharging box; the air supply pipe is connected with the air outlet end of the air pump and is arranged in the deslagging box; a plurality of aeration spray pipes along the length direction interval distribution of air supply pipe and with the air supply pipe intercommunication, the aeration spray pipe is used for blowing towards the filter screen in one side of row's sediment case to with the filter residue on the filter screen to collection slag groove one side guide.

Among the above-mentioned technical scheme, through being equipped with the aeration spray tube in the scum box, the air pump can be to the aeration spray tube air feed, and the aeration spray tube can blow out high-pressure draught, and high-pressure draught can blow away the accumulational dross on the filter screen fast for dross shifts to album sediment groove one side, makes in the dross can in time shift to album sediment inslot, prevents the accumulational of dross on the filter screen, has improved the efficiency that the dross was clear away.

In some embodiments, the aeration spray pipe is arranged in the slag discharging box and is positioned below the filter screen, and the air outlet of the aeration spray pipe is inclined upwards to one side of the slag collecting groove.

Among the above-mentioned technical scheme, because the filter residue that the part is equivalent with the aperture of the hole of permeating water probably just blocks on the hole of permeating water, through setting up the aeration spray tube in the below of filter screen, the air outlet slope of aeration spray tube sets up like this, and the wind direction blows up by blowing down promptly, and the high-pressure draught that the aeration spray tube blew off can blow dross on the filter screen and the dross of smuggleing secretly in the hole of permeating water to album slag chute one side, prevents that the dross from piling up on the filter screen, has reduced the probability that the filter screen blockked up.

In some embodiments, the scum removing device further comprises a water pumping assembly, the water pumping assembly is arranged at the top of the scum discharging box and is used for pumping the sewage and the scum in the biochemical pond together to the water inlet, and the water pumping assembly is arranged as a water pumping pump.

Among the above-mentioned technical scheme, utilize the subassembly that draws water can together pump sewage and dross in the biochemical pond to the water inlet to realize the sewage intake of water inlet.

In some embodiments, a vertical blocking plate is arranged below the filter screen, the blocking plate is used for dividing an area below the filter screen into a drainage area and a slag discharge area for placing a slag collection groove, the water outlet is located in the drainage area, and the slag collection groove is located in the slag discharge area.

Among the above-mentioned technical scheme, through being equipped with vertical baffler in the below of filter screen, the baffler can carry out the subregion with the region of filter screen below, separates for drainage zone and row sediment district, and both mutual noninterference of delivery port and collection sediment groove like this are relatively independent, avoid sewage to get into in collection sediment inslot.

In some embodiments, the slag collecting groove is horizontally arranged in the slag discharging area in a sliding manner, and a handle is arranged outside the slag collecting groove.

Among the above-mentioned technical scheme, locate row's sediment district through sliding at collection sediment groove level, the staff of being convenient for like this can take out collection sediment groove at any time, clears away the dross of collecting the sediment inslot and collect, only need manually push collection sediment groove in arrange sediment district alright after the clearance is accomplished.

In some embodiments, the water inlet and the water outlet are arranged in a staggered manner in the slag discharging box, and the water inlet, the water outlet and the slag collecting tank are sequentially arranged at intervals in the forward projection of the slag discharging box in the thickness direction.

Among the above-mentioned technical scheme, through staggering the water inlet with the delivery port setting, can avoid sewage directly to directly fall into the delivery port behind the filter screen to arrange water inlet, delivery port and collection cinder notch interval in proper order, make each regional relative independence in the scum box, the subregion is more reasonable.

Additional features and advantages of the present application will be described in detail in the detailed description which follows.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a schematic structural diagram of a scum removal apparatus in cooperation with a biochemical pond according to some embodiments of the present disclosure;

fig. 2 is a front sectional view of the dross removal apparatus of fig. 1;

fig. 3 is a schematic view of the dross removal apparatus of fig. 1 at another angle;

fig. 4 is a schematic structural view of a slag collection tank in the scum removal apparatus shown in fig. 2.

An icon: 100-a scum removal device; 10-a slag discharging box; 11-a water inlet; 12-a water outlet; 20-a filter screen; 30-a slag collecting groove; 31-a handle; 32-a slide block; 40-an anti-blocking component; 41-rotating rollers; 42-a blade; 43-a resilient contact; 44-an air pump; 45-a gas supply pipe; 46-an aeration nozzle; 50-a barrier plate; 51-a drain region; 52-a deslagging area; 60-a water pumping assembly; 61-a mounting seat; 62-a water pump; 200-biochemical pool.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present application, it should be noted that the indication of the orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which is usually placed when the product of the application is used, and is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is further noted that, unless otherwise explicitly stated or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in this application will be understood to be a specific case for those of ordinary skill in the art.

Examples

The embodiment of the application provides a scum removing device, which is used for removing scum in a biochemical pool 200, and please refer to fig. 1 to 4, the scum removing device 100 comprises a scum box 10, a filter screen 20 and a scum collecting tank 30, the scum box 10 is arranged at one side of the biochemical pool 200, a processing cavity is arranged in the scum box 10, the processing cavity is provided with a water inlet 11 and a water outlet 12 which are arranged up and down, and the water inlet 11 is used for introducing sewage with scum into the processing cavity; the filter screen 20 is laid in the treatment cavity and positioned between the water inlet 11 and the water outlet 12, the filter screen 20 is positioned below the water inlet 11, and the filter screen 20 is used for filtering the sewage passing through the treatment cavity so as to prevent scum from passing through the filter screen 20; the slag collecting groove 30 is arranged on one side of the filter screen 20, and the slag collecting groove 30 is used for collecting filter residues on the filter screen 20; wherein, the filter screen 20 is disposed in the processing chamber in an inclined manner, and the slag collecting groove 30 is located at one side of the lower end of the filter screen 20.

In this scheme, be equipped with dross clearing device 100 through one side at biochemical pond 200, sewage and surface dross in biochemical pond 200 pass through water inlet 11 and get into to arrange the cinder box 10 in, because install filter screen 20 in arranging the cinder box 10, filter screen 20 can filter the inside sewage of cinder box 10 that flows in to biochemical pond 200, can effectively filter the dross in the sewage to dross in the sewage is clear away, sewage after the filtration gets into biochemical pond 200 once more through delivery port 12. More importantly, the filter screen 20 is arranged in the slag discharging box 10 in an inclined manner, scum accumulated on the inclined surface of the filter screen 20 can gradually move to the lower side under the action of gravity, and the scum on the filter screen 20 can automatically enter the scum collecting groove 30 under the action of gravity due to the fact that the scum collecting groove 30 is arranged on the lower side of the filter screen 20, and the scum can be automatically collected by the scum collecting groove 30. Therefore, the filter screen 20 is inclined, so that the phenomenon that the filter screen 20 is easy to block is avoided, and scum can be transferred to one side of the scum collecting tank 30, so that the scum is automatically collected, and the scum in the scum collecting tank 30 can be cleaned regularly, and the scum clearing efficiency is greatly improved.

It should be noted that the entire installation height of the scum removing device 100 can be slightly higher than the liquid level of the sewage in the biochemical pool 200, and the water outlet can automatically discharge water into the biochemical pool 200 through the water discharge pipe, so that the scum in the biochemical pool 200 can be removed by the scum removing device.

In some embodiments, an anti-blocking assembly 40 is disposed in the residue discharge box 10, and the anti-blocking assembly 40 is used for guiding the residue on the filter screen 20 to one side of the residue collection groove 30 to prevent the filter screen 20 from being blocked by the residue.

Although the slope setting of filter screen 20 can guide partly filter residue to album sediment groove 30 one side removal and shift, the gradient of filter screen 20 is limited, still can lead to partial filter residue to pile up on filter screen 20 to the phenomenon of filter screen 20 jam can appear, consequently through being provided with in deslagging box 10 and preventing stifled subassembly 40, prevent stifled subassembly 40 and can guide the transfer with the filter residue on the filter screen 20 to album sediment groove 30 one side, thereby reduce the probability that the filter screen 20 was blockked up to the filter residue.

In some embodiments, the anti-blocking assembly 40 comprises a rotating roller 41 and a plurality of blades 42, wherein the rotating roller 41 is rotatably installed at one side in the slag discharging box 10 and is positioned above the filter screen 20; the blades 42 are arranged at intervals along the circumferential direction of the rotating roller 41, the outer sides of the blades 42 can be in contact with the filter screen 20, the blades 42 are positioned below the water inlet 11, and the outer sides of the blades 42 can push and guide filter residues on the filter screen 20 towards one side of the residue collecting groove 30; wherein, the filter screen 20 is an arc-shaped plate-shaped plastic component, and the surface of the filter screen 20 is provided with a plurality of water permeable holes, and the radian of the filter screen 20 is matched with the rotating track of the blade 42.

Install the live-rollers 41 through inside rotation at the scum box 10, the outside of blade 42 can contact with filter screen 20, because blade 42 is located water inlet 11 below, when utilizing water inlet 11 to introduce sewage in the scum box 10, blade 42 can drive live-rollers 41 and rotate under the impact of rivers, and the radian of filter screen 20 matches with the rotation orbit of blade 42, thereby blade 42 can promote the transfer to the scum groove 30 on the filter screen 20, avoid the dross to stop on filter screen 20, reduce the probability that the filter screen 20 was blockked up to the filter residue.

In some embodiments, the outer side of the blade 42 is sleeved with a resilient contact portion 43. Through the elastic contact part 43 that is established to the outside cover at blade 42, when elastic contact part 43 and filter screen 20 contact like this, can reduce the decibel that blade 42 and filter screen 20 friction produced to the noise reduction, and elastic contact part 43 can provide the buffer power for blade 42, avoids the phenomenon of taking place the rigidity collision between blade 42 and the filter screen 20.

The elastic contact portion 43 may be made of various materials, for example, the elastic contact portion 43 may be a rubber column, and the rubber has certain elasticity and deformability, and of course, the elastic contact portion 43 may also be a spring, and the spring provides the buffering deformability.

In some embodiments, the anti-blocking assembly 40 comprises an air pump 44, an air supply pipe 45 and a plurality of aeration nozzles 46, wherein the air pump 44 is installed at one side of the deslagging box 10; the air supply pipe 45 is connected with the air outlet end of the air pump 44, and the air supply pipe 45 is arranged in the deslagging box 10; the plurality of aeration nozzles 46 are distributed at intervals along the length direction of the air supply pipe 45 and communicated with the air supply pipe 45, and the aeration nozzles 46 are used for blowing air to one side of the filter screen 20 facing the slag discharge box 10 so as to guide the filter residues on the filter screen 20 to one side of the slag collection groove 30.

Through being equipped with aeration spray tube 46 in slag discharging box 10, air pump 44 can be to aeration spray tube 46 air feed, and aeration spray tube 46 can blow out high-pressure draught, and high-pressure draught can blow away the accumulational dross on filter screen 20 fast for the dross shifts to album sediment groove 30 one side, makes in the dross can in time shift to album sediment groove 30, prevents the accumulational of dross on filter screen 20, has improved the efficiency that the dross was clear away.

In some embodiments, the aeration nozzle 46 is disposed in the slag discharging box 10 and below the filter screen 20, and the air outlet of the aeration nozzle 46 is inclined upward toward one side of the slag collecting groove 30. Because some filter residues that are equivalent to the aperture of the water permeable hole may be just clamped on the water permeable hole, the aeration nozzle 46 is arranged below the filter screen 20, so that the air outlet of the aeration nozzle 46 is inclined upwards, namely the wind direction is blown downwards upwards, and the high-pressure airflow blown out by the aeration nozzle 46 can blow the scum on the filter screen 20 and the scum entrained in the water permeable hole to one side of the scum collecting tank 30, so that the scum is prevented from being accumulated on the filter screen 20, and the probability of blockage of the filter screen 20 is reduced.

Wherein, the air pump 44 can be controlled by the controller, the controller sets program, and the air pump 44 is opened at preset intervals, and the aeration spray pipe 46 is utilized to blow air to the filter screen 20, so as to avoid the phenomenon that the filter screen 20 is blocked. In addition, the preset time can be freely set according to actual conditions.

It should be noted that the Controller may be a PLC Controller, a Programmable Logic Controller (PLC), a digital electronic device with a microprocessor, and a digital Logic Controller for automation control, and the Controller may load the control instructions into a memory at any time for storage and execution. The programmable controller is modularly assembled by an internal CPU, an instruction and data memory, an input/output unit, a power module, a digital analog unit and the like.

In some embodiments, the scum removing apparatus further comprises a water pumping assembly 60, the water pumping assembly 60 is disposed at the top of the scum box 10, the water pumping assembly 60 is used for pumping the sewage and the scum in the biochemical pond 200 together to the water inlet 11, and the water pumping assembly 60 is configured as a water pumping pump 62. The pumping assembly 60 can be used to pump the sewage and the scum in the biochemical pool 200 to the water inlet 11 together, so as to realize sewage inlet of the water inlet 11.

The water pumping assembly 60 can comprise a mounting seat 61 and a water pump 62, the mounting seat 61 is mounted at the bottom of the biochemical tank 200, the residue discharging tank 10 is mounted on the mounting seat 61, the water pump 62 is mounted on the mounting seat 61, and a water pumping port of a water inlet pipe of the water pump 62 is lower than the liquid level of the sewage in the biochemical tank 200 by 1cm-5cm, so that the sewage in the biochemical tank 200 is communicated with scum and pumped into the residue discharging tank 10, and a water outlet pipe of the water pump 62 is communicated with the water inlet 11 of the residue discharging tank 10. In addition, the height of the water inlet end of the water inlet pipe of the water pump 62 can be manually adjusted and controlled, and can also be automatically controlled, so that in order to facilitate the control of the pumping depth of the water pump 62, the water pump 62 can be a buoyancy type water pump and can automatically lift along with the liquid level in the sewage tank, so as to facilitate the pumping of scum on the liquid level.

In some embodiments, a vertical blocking plate 50 is arranged below the filter screen 20, the blocking plate 50 is used for dividing an area below the filter screen 20 into a drainage area 51 and a slag discharge area 52 for placing the slag collecting groove 30, the water outlet 12 is located in the drainage area 51, and the slag collecting groove 30 is located in the slag discharge area 52. Through being equipped with vertical baffler 50 in the below of filter screen 20, baffler 50 can be divided the region of filter screen 20 below for drainage area 51 and sediment district 52, and both mutual noninterference of delivery port 12 and collection sediment groove 30 are relatively independent like this, avoid sewage to get into in collection sediment groove 30.

In some embodiments, the slag collecting groove 30 is horizontally slidably disposed in the slag discharging area 52, and a handle 31 is disposed outside the slag collecting groove 30. Through locating in sediment district 52 at the sediment groove 30 horizontal slip, the staff of being convenient for like this can take out sediment groove 30 at any time, clears away the dross of collecting in sediment groove 30, and the clearance only needs to push into sediment groove 30 in sediment district 52 alright manually after accomplishing.

Wherein, the open setting in top of collection sediment groove 30 is convenient for the dross on filter screen 20 to get into in collection sediment groove 30, and slider 32 is installed to the bottom of collection sediment groove 30, arranges sediment district 52 in the sediment case 10 and installs the slide rail (not shown in the figure) of level setting, and collection sediment groove 30 passes through slider 32 and slide rail sliding fit to acting on handle 31 pulling collection sediment groove 30, realizing taking out of collection sediment groove 30 outwards, the dross in collection sediment groove 30 is clear away and is accomplished the back, inwards promote collection sediment groove 30 alright.

Wherein, the handle 31 can be provided with an anti-slip handle, which can play a role of anti-slip.

In some embodiments, the water inlet 11 and the water outlet 12 are arranged in a staggered manner in the slag discharging box 10, and the water inlet 11, the water outlet and the slag collecting groove 30 are sequentially arranged at intervals in a forward projection in the thickness direction of the slag discharging box 10. Through staggering the setting with water inlet 11 and delivery port 12, can avoid sewage directly to directly fall into delivery port 12 after passing through filter screen 20 to arrange water inlet 11, delivery port 12 and slag trap 30 interval in proper order, make each regional relatively independent in the scum box 10, the subregion is more reasonable.

Wherein, the inner bottom surface of the deslagging box 10 in the drainage area 51 is a conical surface, and the water outlet 12 is arranged at the bottommost end of the conical surface.

It should be noted that the features of the embodiments in the present application may be combined with each other without conflict.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides a dross clearing device for driving dross in the biochemical pond, its characterized in that includes:

the slag discharging box is arranged on one side of the biochemical pool, a treatment cavity is arranged in the slag discharging box, the treatment cavity is provided with a water inlet and a water outlet which are arranged up and down, and the water inlet is used for introducing sewage with scum into the treatment cavity;

the filter screen is laid in the treatment cavity and positioned between the water inlet and the water outlet, the filter screen is positioned below the water inlet, and the filter screen is used for filtering the sewage passing through the treatment cavity so as to prevent the scum from passing through the filter screen;

the slag collecting groove is arranged on one side of the filter screen and is used for collecting filter residues on the filter screen;

the filter screen is arranged in the treatment cavity in an inclined manner, and the slag collecting groove is positioned on one side of the lower end of the filter screen.

2. The dross removing device of claim 1, wherein an anti-blocking assembly is disposed in the dross-discharging box, and the anti-blocking assembly is used for guiding the dross on the filter screen to one side of the dross collecting groove, so as to prevent the dross from blocking the filter screen.

3. The dross removal apparatus of claim 2, wherein the anti-clogging element comprises:

the rotating roller is rotatably arranged on one side in the deslagging box and is positioned above the filter screen;

the blades are arranged at intervals along the circumferential direction of the rotating roller, the outer sides of the blades can be in contact with the filter screen, the blades are positioned below the water inlet, and the outer sides of the blades can push and guide filter residues on the filter screen towards one side of the residue collecting groove;

the filter screen is an arc-shaped plate-shaped plastic component, a plurality of water permeable holes are formed in the surface of the filter screen in a penetrating mode, and the radian of the filter screen is matched with the rotating track of the blade.

4. The dross removal apparatus of claim 3, wherein the outer side of the blade is provided with a resilient contact portion.

5. The dross removal apparatus of claim 2, wherein the anti-clogging element further comprises:

the air pump is arranged on one side of the slag discharging box;

the air supply pipe is connected with the air outlet end of the air pump and is arranged in the deslagging box;

a plurality of aeration spray pipes, follow the length direction interval distribution of air supply pipe and with the air supply pipe is linked together, the aeration spray pipe be used for to the filter screen is towards blowing in one side of row's cinder box, with will filter residue on the filter screen to collection cinder notch one side guide.

6. The dross removal apparatus of claim 5, wherein the aeration nozzle is disposed in the dross box and below the filter screen, and the outlet of the aeration nozzle is inclined upward toward one side of the dross collection chamber.

7. The dross removal apparatus of claim 1, further comprising:

and the water pumping assembly is arranged at the top of the deslagging box and used for pumping the sewage and the scum in the biochemical pool to the water inlet together.

8. The dross removing apparatus of claim 1, wherein a vertical barrier is provided below the filter screen, the barrier is used to separate the area below the filter screen into a drainage area and a slagging area, the water outlet is provided in the drainage area, the slag collecting groove is provided in the slagging area, the lower side of the filter screen is fixed on the top of the barrier, and the upper side of the filter screen is fixed on the inner wall of the slagging box.

9. The dross removal apparatus of claim 8, wherein the dross collecting receptacle is slidably disposed in the dross removing area via a slide block, and a handle is disposed outside the dross collecting receptacle.

10. The dross removal apparatus of claim 1, wherein the water inlet and the water outlet are arranged in a staggered manner in the dross box, and the water inlet, the water outlet and the dross collecting groove are sequentially arranged at intervals in a forward projection of the dross box in a thickness direction.