CN213171731U

CN213171731U - Sewage treatment is with circulation sand removal device

Info

Publication number: CN213171731U
Application number: CN202021283723.4U
Authority: CN
Inventors: 杨沐璇
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-03
Filing date: 2020-07-03
Publication date: 2021-05-11
Anticipated expiration: 2030-07-03

Abstract

The utility model relates to the technical field of sewage treatment, in particular to a circulating desanding device for sewage treatment, which comprises a tank body, wherein the inside of the tank body is rotatably connected with a filter cylinder, the inside of the filter cylinder is fixedly connected with a flow equalizing plate, the middle part of the flow equalizing plate is fixedly connected with a rotating shaft, a plurality of groups of stirrers are fixedly connected on the rotating shaft, the rotating shaft is of a tubular structure, and the bottom end of the rotating shaft is fixedly connected with a sand suction nozzle; the upper end of the tank body is fixedly connected with a cover plate, the cover plate is fixedly connected with a motor through a fixing plate, the motor is connected with a rotating shaft through a belt transmission mechanism, the cover plate is also provided with a water inlet, and the side wall of the tank body is fixedly connected with a water outlet pipe; the sewage is stirred by the stirrer driven by the motor, so that sewage cyclone desanding can be realized, sand and water are separated, and the desanding effect is improved; set up the flow equalizing plate through setting up in the agitator top, can drive the rotation of flow equalizing plate when the cartridge filter rotates, shunt rivers, make sewage evenly flow into the screen cloth section of thick bamboo through the inlet of flow equalizing plate in, improve the agitator degritting effect.

Description

Sewage treatment is with circulation sand removal device

Technical Field

The utility model relates to a sewage treatment technical field specifically is a sewage treatment is with circulation sand removal device.

Background

Municipal sewage treatment refers to measures taken to change the nature of sewage so that the sewage does not harm the environmental waters.

The urban sewage treatment is generally divided into three stages: first-stage treatment, namely removing floating objects or partial suspended pollutants in the wastewater, adjusting the pH value, reducing the rotting degree of the wastewater and the load of a subsequent treatment process, and removing about 50-60% of Suspended Solids (SS) and about 20-30% of BOD 5; secondary treatment, namely removing a large amount of organic pollutants in the wastewater on the basis of the primary treatment to further purify the wastewater, removing a large amount of BOD and suspended matters in the wastewater, and discharging the effluent or using the effluent for irrigation; and the third-stage treatment is used for further removing pollutants which cannot be removed by the second-stage treatment, wherein the pollutants comprise microorganisms, undegradable organic matters or soluble inorganic matters such as phosphorus, nitrogen and the like.

The urban sewage treatment process is divided into a pretreatment process, a primary treatment process, a secondary treatment process, an advanced treatment process, a sludge treatment process and final sludge treatment according to flow and treatment procedures. The pretreatment process generally comprises grid treatment, pump house pumping and sand setting treatment. The purpose of the grid treatment is to intercept large masses of material to protect the subsequent water pump lines and equipment from normal operation. The purpose of pumping up the pump house is to increase the head of the water to ensure that the sewage can flow through various treatment structures subsequently built on the ground by gravity. The purpose of sand setting treatment is to remove sand, stones and large particles carried in sewage so as to reduce the sedimentation of the sand, the stones and the large particles in subsequent structures and prevent silt, influence on efficiency, abrasion and blockage of facilities and influence on the normal operation of pipeline equipment. The primary treatment process mainly comprises a primary sedimentation tank, aims to remove suspended matters in sewage by sedimentation as much as possible, mainly comprises an aeration tank and a secondary sedimentation tank, utilizes an aeration fan and a special aeration device to supply oxygen to the aeration tank, and mainly aims to change most pollutants in the sewage into CO2 and H2O through metabolism of microorganisms, namely the aerobic technology. After the reaction, the microorganisms in the aeration tank continuously flow into a secondary sedimentation tank together with water, and the microorganisms are settled at the bottom of the tank and are returned to the front end of the aeration tank through a pipeline and a pump to be mixed with newly inflowing sewage; the clarified treated water on the secondary sedimentation tank continuously flows out of the sewage plant through the effluent weir. The advanced treatment is further treatment for meeting the requirement of high-standard receiving water bodies or reusing the water bodies for special purposes such as industry and the like, and common processes comprise coagulating sedimentation and filtration. Wherein the filtering device comprises a siphon filter, a gravity type valveless filter, a pressure filter and the like.

The grit chamber is an indispensable pretreatment facility of municipal sewage treatment plants, and the grit chambers commonly adopted at home and abroad at present comprise the following: horizontal flow grit chambers, aeration grit chambers, cyclone grit chambers (bell and proportional), and bayer grit chambers, and vertical flow grit chambers are rarely used in municipal sewage treatment plants. The sand discharge equipment is used for the grit chamber. And removing inorganic particles such as sand, stone and the like which are intercepted at the bottom of the pool and have the density higher than that of water. Along with the development of treatment process, the type structure of desanding equipment is diversified, and its sand collection mode has two kinds: namely a sand scraping mold and a sand sucking mold. The sand scraping mold is to scrape and collect sand deposited at the bottom of the tank into a pit (ditch) at the center (edge) of the tank, then to clean and lift the sand, and to convey the sand after water separation into a sand container outside the tank. And treating by external transportation. And the sand suction mold pumps the sand-water mixed liquid at the bottom layer of the pool to the outside of the pool by a sand pump. And conveying the sand grains subjected to sand-water separation into a sand container for external transportation and disposal.

When the existing sand sucking and removing equipment is used, sand in sewage easily blocks a sand discharge pipe or a sand pump, manual sand removal is often needed, the labor intensity is high, and the sand removing efficiency is low.

Disclosure of Invention

An object of the utility model is to provide a sewage treatment is with circulation sand removal device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a circulating desanding device for sewage treatment comprises a tank body, wherein a filter cartridge is rotatably connected inside the tank body, a flow equalizing plate is fixedly connected inside the filter cartridge, a rotating shaft is fixedly connected in the middle of the flow equalizing plate, a plurality of groups of stirrers are fixedly connected to the rotating shaft, the rotating shaft is of a tubular structure, and a sand suction nozzle is fixedly connected to the bottom end of the rotating shaft; the upper end fixedly connected with apron of the jar body, the apron passes through fixed plate fixedly connected with motor, the motor passes through belt drive mechanism and is connected with the pivot, still be equipped with the water inlet on the apron, the lateral wall fixedly connected with outlet pipe of the jar body.

Preferably, the upper end of the filter cartridge is fixedly connected with an inner ring of the bearing, a gasket is arranged between the upper edge plate of the filter cartridge and the bearing, an outer ring of the bearing is fixedly connected to the inner wall of the tank body, a fixed ring is fixedly connected to the surface of the inner wall of the tank body, and the fixed ring is located at the lower end of the bearing.

Preferably, the cartridge filter includes a screen cloth section of thick bamboo, a screen cloth section of thick bamboo fixed connection is at the lower extreme of cartridge filter, the surface of a screen cloth section of thick bamboo gathers has the sieve mesh, a screen cloth section of thick bamboo is the steel screen cloth.

Preferably, the agitator includes the fixing base, stirring vane of the equal fixedly connected with of the relative both sides wall of fixing base, the interval of each group's agitator in the pivot equals, and is adjacent the stirring vane contained angle of agitator is 90.

Preferably, the bottom of the tank body is inclined, a sand collecting groove is formed in the middle of the lower end of the tank body, and the sand suction nozzle is located at the upper end of the sand collecting groove.

Preferably, the upper end fixedly connected with mount of apron, belt drive includes driving pulley, driven pulleys and belt, driving pulley is in the output shaft fixed connection of motor, driven pulleys fixed connection is in the outside of pivot, driving pulley and driven pulleys are connected to the belt, driving pulley's upper end is rotated through the pivot and is connected in the mount, the upper end of pivot is rotated and is connected in mount and fixedly connected with swivel joint, swivel joint has the sand pump through taking out the sand union coupling.

Preferably, the water inlet is hopper-shaped, the lower extreme fixedly connected with guide plate of water inlet, the guide plate is the slope setting, the lower extreme of guide plate is located the flow equalizing plate top.

Preferably, a plurality of round liquid inlets are distributed on the surface of the flow equalizing plate.

Preferably, the lower end of the side wall of the tank body is fixedly connected with a sewage cleaning pipe, the sewage cleaning pipe is communicated with the sand collecting tank, and a manual valve is arranged on the sewage cleaning pipe.

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

1) this sewage treatment is with circulation sand removing device stirs sewage through setting up the motor and driving the agitator, can realize sewage whirl degritting, makes the sand-water separation, has improved the desanding effect.

2) This circulation sand removal device for sewage treatment sets up the flow equalizing plate through setting up in the agitator top, can drive the rotation of flow equalizing plate when the cartridge filter rotates, shunts sewage rivers, makes in sewage evenly flows into the screen cloth section of thick bamboo through the inlet of flow equalizing plate, has improved the whirl degritting effect of agitator.

3) This sewage treatment is with circulation sand removal device through a screen cloth section of thick bamboo, can keep apart inorganic particles such as sand, stone in the sewage that gets into the cartridge filter, and the agitator of being convenient for carries out the whirl, and the grit in rivers can effectively be held back to a screen cloth section of thick bamboo when rotatory simultaneously, plays the filter effect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the stirrer according to the present invention;

in the drawings, the components represented by the respective reference numerals are listed below:

1 tank body, 2 filter cartridges, 3 flow equalizing plates, 4 rotating shafts, 5 stirrers, 6 sand suction nozzles, 7 cover plates, 8 fixing plates, 9 motors, 10 water inlets, 11 water outlet pipes, 12 bearings, 13 gaskets, 14 fixing rings, 15 screen cylinders, 16 fixing seats, 17 stirring blades, 18 sand collecting grooves, 19 fixing frames, 20 driving pulleys, 21 driven pulleys, 22 belts, 23 rotating pipe joints, 24 sand suction pipes, 25 manual valves, 26 guide plates and 27 dirt cleaning pipes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a circulating desanding device for sewage treatment comprises a tank body 1, wherein a filter cylinder 2 is rotatably connected inside the tank body 1, a flow equalizing plate 3 is fixedly connected inside the filter cylinder 2, a rotating shaft 4 is fixedly connected in the middle of the flow equalizing plate 3, a plurality of groups of stirrers 5 are fixedly connected on the rotating shaft 4, the rotating shaft 4 is of a tubular structure, and a sand suction nozzle 6 is fixedly connected at the bottom end of the rotating shaft 4; the upper end fixedly connected with apron 7 of jar body 1, apron 7 is connected with motor 9 through fixed plate 8 fixedly connected with, and motor 9 is connected with pivot 4 through taking drive mechanism, still is equipped with water inlet 10 on the apron 7, jar body 1's lateral wall fixedly connected with outlet pipe 11.

Wherein, the upper end fixedly connected with bearing 12 of cartridge filter 2's inner circle, is equipped with packing ring 13 between the last board of cartridge filter 2 and bearing 12, and the outer lane fixed connection of bearing 12 is in jar body 1 inner wall, and the inner wall fixed surface of jar body 1 is connected with retainer plate 14, and retainer plate 14 is located the lower extreme of bearing 12.

Wherein, cartridge filter 2 includes a screen cloth section of thick bamboo 15, and screen cloth section of thick bamboo 15 fixed connection is at the lower extreme of cartridge filter 2, and screen cloth section of thick bamboo 15 gathers on the surface has the sieve mesh, and screen cloth section of thick bamboo 15 is the steel screen cloth, through screen cloth section of thick bamboo 15, can keep apart inorganic particles such as sand, stone in the sewage in the entering cartridge filter 2, and the agitator 5 of being convenient for carries out the whirl, and the grit in rivers can effectively be held back to screen cloth section of thick bamboo 15 when rotatory simultaneously, plays the filter effect.

Wherein, agitator 5 includes fixing base 16, and stirring vane 17 of the equal fixedly connected with of the relative both sides wall of fixing base 16, the interval of each group's agitator 5 in the pivot 4 equals, and the 17 contained angles of the stirring vane of adjacent agitator 5 are 90, stirs sewage through setting up motor 9 drive agitator 5, can realize sewage whirl degritting, makes the sand-water separation, has improved the degritting effect.

Wherein, the bottom of the tank body 1 is inclined, the middle part of the lower end of the tank body 1 is provided with a sand collecting groove 18, and the sand suction nozzle 6 is positioned at the upper end of the sand collecting groove 18.

Wherein, the upper end fixedly connected with mount 19 of apron 7, belt drive includes driving pulley 20, driven pulleys 21 and belt 22, driving pulley 20 is in the output shaft fixed connection of motor 9, driven pulleys 21 fixed connection is in the outside of pivot 4, belt 22 connects driving pulley 20 and driven pulleys 21, driving pulley 20's upper end is rotated through the pivot and is connected in mount 19, the upper end of pivot 4 is rotated and is connected in mount 19 and fixedly connected with swivel joint 23, swivel joint 23 is connected with the sand pump through taking out sand pipe 24.

Wherein, the water inlet 10 is hopper-shaped, the lower extreme fixedly connected with guide plate 26 of water inlet 10, and guide plate 26 is the slope setting, and the lower extreme of guide plate 26 is located flow equalizing plate 3 top.

Wherein, a plurality of circular shape inlets are laid on the surface of the flow equalizing plate 3, and the flow equalizing plate 3 is arranged above the stirrer 5, so that the flow equalizing plate 3 can be driven to rotate when the filter cartridge 2 rotates, sewage and water flow are shunted, sewage can uniformly flow into the screen cylinder 15 through the inlets of the flow equalizing plate 3, and the cyclone desanding effect of the stirrer 5 is improved.

Wherein, the lower end of the side wall of the tank body 1 is fixedly connected with a sewage cleaning pipe 27, the sewage cleaning pipe 27 is communicated with the sand collecting groove 18, and the sewage cleaning pipe 27 is provided with a manual valve 25.

Principle of operation

When the circulating desanding device for sewage treatment works, sewage enters the tank body 1 through the water inlet 10, the sewage entering the tank body 1 firstly flows into the upper end of the flow equalizing plate 3 through the guide plate 26, at the moment, the output shaft of the motor 9 drives the driving belt wheel 20 to rotate, the driving belt wheel 20 drives the driven belt wheel 21 through the belt 22, the driven belt wheel drives the rotating shaft 4, the rotating shaft 4 simultaneously drives the flow equalizing plate 3 and the stirrer 5 to rotate, the flow equalizing plate 3 drives the screen cylinder 15 to rotate through the filter cylinder 2, when the upper end of the sewage flow equalizing plate 3 is arranged, the sewage uniformly flows into the screen cylinder 15 through the liquid inlet of the rotating flow equalizing plate 3, the filter cylinder 2 isolates inorganic particles such as sand, stone and the like in the sewage, meanwhile, sand and stone in water flow are intercepted, the stirrer 5 stirs the sewage, and realizes rotational flow desanding of the sewage; the separated sand enters the bottom of the sand collection tank 18 for sedimentation, the sand in the sand collection tank 18 is pumped out through a sand pump arranged outside by a sand suction nozzle 6, a rotating shaft 4, a rotary pipe joint 23 and a sand pumping pipe 24, and the separated water flows out through a water outlet pipe 11.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A circulating desanding device for sewage treatment comprises a tank body (1) and is characterized in that a filter cylinder (2) is rotatably connected inside the tank body (1), a flow equalizing plate (3) is fixedly connected inside the filter cylinder (2), a rotating shaft (4) is fixedly connected in the middle of the flow equalizing plate (3), a plurality of groups of stirrers (5) are fixedly connected to the rotating shaft (4), the rotating shaft (4) is of a tubular structure, and a sand suction nozzle (6) is fixedly connected to the bottom end of the rotating shaft (4); the utility model discloses a jar body, including jar body (1), upper end fixedly connected with apron (7), apron (7) are through fixed plate (8) fixedly connected with motor (9), motor (9) are connected with pivot (4) through taking drive mechanism, still be equipped with water inlet (10) on apron (7), the lateral wall fixedly connected with outlet pipe (11) of the jar body (1).

2. A circulating sand removing device for sewage treatment as claimed in claim 1, characterized in that the upper end of the filter cartridge (2) is fixedly connected with the inner ring of the bearing (12), a gasket (13) is arranged between the upper edge plate of the filter cartridge (2) and the bearing (12), the outer ring of the bearing (12) is fixedly connected with the inner wall of the tank body (1), the surface of the inner wall of the tank body (1) is fixedly connected with a fixed ring (14), and the fixed ring (14) is positioned at the lower end of the bearing (12).

3. A circulating sand removing device for sewage treatment as claimed in claim 1, characterized in that said filter cartridge (2) comprises a screen cylinder (15), said screen cylinder (15) is fixedly connected to the lower end of the filter cartridge (2), the surface of said screen cylinder (15) is densely provided with screen holes, and said screen cylinder (15) is a steel screen.

4. A circulating sand removing device for sewage treatment according to claim 1, characterized in that the stirrer (5) comprises a fixed base (16), two opposite side walls of the fixed base (16) are fixedly connected with a stirring blade (17), the distance between each group of stirrers (5) on the rotating shaft (4) is equal, and the included angle between the adjacent stirring blades (17) of the stirrers (5) is 90 °.

5. A circulating sand removing device for sewage treatment as claimed in claim 1, characterized in that the bottom end of the tank body (1) is inclined, a sand collecting groove (18) is arranged in the middle of the lower end of the tank body (1), and the sand suction nozzle (6) is positioned at the upper end of the sand collecting groove (18).

6. A circulating sand removing device for sewage treatment according to claim 1, characterized in that the upper end of the cover plate (7) is fixedly connected with a fixing frame (19), the belt transmission mechanism comprises a driving pulley (20), a driven pulley (21) and a belt (22), the driving pulley (20) is fixedly connected with the output shaft of the motor (9), the driven pulley (21) is fixedly connected outside the rotating shaft (4), the belt (22) is connected with the driving pulley (20) and the driven pulley (21), the upper end of the driving pulley (20) is connected with the fixing frame (19) through the rotating shaft, the upper end of the rotating shaft (4) is rotatably connected with a rotating pipe joint (23) through the fixing frame (19), and the rotating pipe joint (23) is connected with a sand pump through a sand pumping pipe (24).

7. A circulating sand removing device for sewage treatment as claimed in claim 1, characterized in that said water inlet (10) is hopper-shaped, a flow guide plate (26) is fixedly connected to the lower end of said water inlet (10), said flow guide plate (26) is inclined, and the lower end of said flow guide plate (26) is located above the flow equalizing plate (3).

8. A circulating desanding device for sewage treatment as claimed in claim 1, characterised in that the surface of the flow equalizing plate (3) is provided with a plurality of circular liquid inlets.

9. A circulating sand removing device for sewage treatment according to claim 5, characterized in that the lower end of the side wall of the tank body (1) is fixedly connected with a sewage cleaning pipe (27), the sewage cleaning pipe (27) is communicated with the sand collecting tank (18), and a manual valve (25) is arranged on the sewage cleaning pipe (27).