CN111039462A

CN111039462A - Sewage treatment is with sinking pond just

Info

Publication number: CN111039462A
Application number: CN201911399164.5A
Authority: CN
Inventors: 孙震; 金爽; 赵明明
Original assignee: Anhui Pushi Ecological Environment Engineering Co ltd
Current assignee: Anhui Pushi Ecological Environment Engineering Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-04-21

Abstract

The invention discloses a primary sedimentation tank for sewage treatment, which belongs to the technical field of sewage treatment and comprises a primary sedimentation tank body, a sewage inlet pipe and a sewage outlet pipe, wherein the sewage inlet pipe and the sewage outlet pipe are arranged at two ends of the primary sedimentation tank body; the bottom of just sinking the cell body is equipped with the bottom of the pool structure, the bottom of the pool structure includes first slope and the second slope of the mutual butt joint of bottommost, second slope top and one end opening set up, and the cliff that both sides were equipped with, the blow off pipe stretches into the inside on second slope, along the cliff slope upwards is provided with and filters conveying mechanism and is used for carrying solid impurity, just sink the cell body and be close to the one end top of blow off pipe is equipped with the slag notch, the highest point that filters conveying mechanism is higher than the slag notch. The floating objects in the sewage are conveyed out of the pool in real time through the filtering and conveying mechanism, so that the solid garbage is convenient to clean.

Description

Sewage treatment is with sinking pond just

Technical Field

The invention relates to the technical field of sewage treatment, in particular to a primary sedimentation tank for sewage treatment.

Background

Sewage treatment: the sewage is purified to reach the water quality requirement of being discharged into a certain water body or being reused. The sewage treatment is widely applied to various fields such as buildings, agriculture, traffic, energy, petrifaction, environmental protection, urban landscape, medical treatment, catering and the like, and the sewage treatment process also increasingly enters the daily life of common people, and the sewage treatment process is generally divided into a plurality of treatment tanks to adjust the sewage to a discharge standard, wherein the primary sedimentation tank is the first process of sewage treatment and can remove settleable objects and floating objects in the wastewater. After the wastewater is primarily precipitated, 50% of the settleable substances, 50% of the grease and 20% of the BOD of the floating substances can be removed, the primary precipitation tank is the most economical purification step according to the unit mass of the removed BOD or solid substances, the primary precipitation tank is easy to pretreat the domestic sewage and the industrial sewage with higher suspended substances, the primary precipitation tank generally adopts a biological flocculation mode to adsorb more soluble and colloidal organic substances, and the removal efficiency of the primary precipitation tank is improved.

And traditional primary sedimentation pond is generally through the mode of pouring the flocculating agent into the pond, make sewage and flocculating agent contact reaction, because the cell body is generally great, it can only guarantee that the flocculating agent contacts more fully with the sewage in this region only to pour the flocculating agent in a region, and other regions are then poor in effect, consequently in order to guarantee solubility and the abundant flocculation of colloid attitude organic matter in the sewage, then need a large amount of flocculating agent, cause the flocculating agent extravagant, also influence flocculation efficiency, and the solid rubbish thing of general primary sedimentation pond deposit is the sewage of waiting to dry back in the pond and clears up, can't last handle sewage like this, and the clearance of solid rubbish also wastes a large amount of labours.

Disclosure of Invention

The invention aims to solve the problems that the primary sedimentation tank is not fully contacted with sewage when a flocculating agent is used, the flocculating agent is wasted, the flocculation efficiency is influenced, the sewage treatment work cannot be continuously carried out for cleaning precipitated solid garbage, the labor force is wasted, and the sewage treatment efficiency is low.

The primary sedimentation tank comprises a primary sedimentation tank body, and a sewage inlet pipe and a sewage outlet pipe which are arranged at two ends of the primary sedimentation tank body, wherein a flocculating agent barrel is arranged outside the primary sedimentation tank body, and a flocculating agent is put into the primary sedimentation tank body through the flocculating agent barrel to remove suspended matters;

just sink the bottom of cell body and be equipped with the bottom of the pool structure, the bottom of the pool structure includes first slope and the second slope of the mutual butt joint of bottommost, second slope top and one end opening set up, and the cliff that both sides were equipped with, the blow off pipe stretches into the inside on second slope, along the cliff slope upwards is provided with and filters conveying mechanism and is used for carrying solid impurity, just sink the cell body and be close to the one end top of blow off pipe is equipped with the slag notch, filter conveying mechanism's highest point is higher than the slag notch, and follow impurity through the guide plate the slag notch is discharged.

Preferably, the filtering and conveying mechanism comprises driving rollers arranged at two ends of the inclined wall and a conveying mesh belt sleeved on the driving rollers, wherein the driving rollers are driven by a driving motor.

Preferably, a plurality of hanging plates are arranged on the surface of the conveying net belt.

Preferably, the discharge gate of flocculating agent bucket passes through the delivery pump and is connected with the conveyer pipe way, connects a plurality of shower nozzle on the conveyer pipe, and the shower nozzle setting is in the inside of just sinking the cell body.

Preferably, a flow controller is arranged at the joint of the flocculating agent barrel and the delivery pump.

Preferably, the conveying pipes are provided with two conveying pipes and positioned at two sides of the primary sedimentation tank body, wherein the spray head on one conveying pipe is inclined downwards, and the spray head on the other conveying pipe is inclined upwards.

Preferably, the surface of the slag outlet is hinged by a gate.

Preferably, one end of the sewage discharge pipe extending into the primary sedimentation tank body is sleeved with a filter screen.

Compared with the prior art, the invention has the beneficial effects that:

1. through being the relative structure of placing in two slopes with the bottom of the pool setting, along the inclined wall installation filtration conveying mechanism on the second slope, when sewage that advances dirty pipe and come in mix with solid rubbish, the suspended solid with can sink the thing along first slope landing to the lower extreme that filters conveying mechanism, and filter conveying mechanism has the effect of filtering and carrying, block impurity, make it can't enter into inside the second slope, thereby impurity is filtered in making blow off pipe exhaust sewage, the rethread carries the function and carries the surface of water with solid rubbish, discharge along the slag notch at last, thereby reach the effect of clearance solid impurity, need not to wait for like this that the pond is dry can clear up rubbish, high efficiency, and do not influence and last use.

2. Through the externally mounted flocculating agent bucket at the primary sedimentation cell body, the flocculating agent in the flocculating agent bucket is carried in the pond by the delivery pump of flow controller control to reduce the waste of flocculating agent, the pipeline of carrying the flocculating agent has two and is located the pond both sides in addition, the slope of shower nozzle on two pipelines is upwards a slope downwards, can form a swirl when spraying the flocculating agent simultaneously, plays the stirring effect to the pond, can accelerate flocculating agent and sewage contact, improves the slagging-off efficiency.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a top view of the primary sedimentation tank structure of the present invention.

Fig. 3 is a schematic view of a second ramp structure according to the present invention.

FIG. 4 is a schematic flow diagram of the flocculant agent sprayed from the spray head of the present invention.

In the figure: 1. the sewage treatment device comprises a primary sedimentation tank body, 2, a sewage inlet pipe, 3, a sewage discharge pipe, 4, a flocculating agent barrel, 5, a flow controller, 6, a conveying pump, 7, a conveying pipe, 8, a first slope, 9, a second slope, 10, a tank bottom structure, 11, a filtering and conveying mechanism, 12, a driving motor, 13, a driving roller, 14, a slag hole, 15, a gate, 16, a filter screen, 17, a spray head, 18, a conveying mesh belt, 19, a hanging plate, 20, an inclined wall, 21 and a guide plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 invention.

Referring to fig. 1-3, a primary sedimentation tank for sewage treatment comprises a primary sedimentation tank body 1, and a sewage inlet pipe 2 and a sewage outlet pipe 3 which are arranged at two ends of the primary sedimentation tank body 1, wherein a flocculating agent barrel 4 is arranged outside the primary sedimentation tank body 1, and a flocculating agent is put into the primary sedimentation tank body 1 through the flocculating agent barrel 4 to remove suspended matters; the bottom of the primary sedimentation tank body 1 is provided with a tank bottom structure 10, the tank bottom structure comprises a first slope 8 and a second slope 9 which are mutually butted at the bottommost ends, the top and one end of the second slope 9 are provided with openings, two sides of the second slope are provided with inclined walls 20, a sewage discharge pipe 3 extends into the second slope 9, a filtering and conveying mechanism 11 is obliquely and upwards arranged along the inclined walls 20 and used for conveying solid impurities, the top of one end, close to the sewage discharge pipe 3, of the primary sedimentation tank body 1 is provided with a slag outlet 14, the highest end of the filtering and conveying mechanism 11 is higher than the slag outlet 14, impurities are discharged from the slag outlet 14 through a guide plate 21, the primary sedimentation tank body 1 enters sewage through a sewage inlet pipe 2, a flocculating agent conveyed by a flocculating agent barrel 4 adsorbs dissolubility and colloid state organic matters in the sewage to form floc suspended matters, and then the floc suspended matters are conveyed to the slag outlet 14 along with the filtering and, because bottom of pool structure 10 adopts two first slopes 8 and second slope 9 that use the least significant end as the symmetry, first slope 8 is used for the landing to deposit the flocculation thing at the bottom of the pool, filter conveying mechanism 11 and install on the inclined plane of second slope 9, have and filter and carry two kinds of effects, the sewage that gets into just heavy cell body 1 from blow off pipe 3 is earlier filtered when filtering conveying mechanism 11, then the sewage that does not contain impurity is in the same direction as blow off pipe 3 entering next stage sewage treatment pond, and solid impurity is washd and is transmitted to slag notch 14, thereby realize the interior clearance that lasts.

Filter conveying mechanism 11 including setting up conveying mesh belt 18 that cup joints on the driving roller 13 and the driving roller 13 at the inclined wall 20 both ends, wherein driving roller 13 is driven by driving motor 12, conveying mesh belt 18 surface sets up a plurality of link plate 19, conveying mesh belt 18 not only can transmit solid impurity, and the mesh can play the filtering action moreover, thereby realize filtering conveying mechanism 11's filtration and conveying effect, link plate 19 can hang the floater in the pond, salvage the rubbish in the pond and finish.

The discharge port of the flocculating agent barrel 4 is connected with a delivery pipe 7 through a pipeline by a delivery pump 6, the delivery pipe 7 is connected with a plurality of spray heads 17, the spray heads 17 are arranged inside the primary sedimentation tank body 1, the joint of the flocculating agent barrel 4 and the delivery pump 6 is provided with a flow controller 5, the delivery pipe 7 is provided with two spray heads which are positioned at two sides of the primary sedimentation tank body 1, wherein the spray head 17 on one delivery pipe 7 inclines downwards, the spray head 17 on the other delivery pipe 7 inclines upwards, the flocculating agent barrel 4 stores the biological flocculating agent, when the flocculating agent needs to be put in, the flow controller 5 controls the amount of the flocculating agent flowing out of the barrel, and then the flocculating agent is pressurized and delivered to each spray head 17 by the delivery pump 6, as the spray heads 17 at two sides of the primary sedimentation tank body 1 are different in orientation, as shown in figure 4, the spray heads 17 can form a vortex when spraying the flocculating agent, play a role of stirring on, improve the flocculation efficiency and effect.

The surface of the slag hole 14 is hinged by a gate 15, sludge or garbage can be discharged from the slag hole 14 after the gate 15 is opened, a filter screen 16 is sleeved at one end of the sewage discharge pipe 3 extending into the primary sedimentation tank body 1, and the filter screen 16 plays a role in double filtration.

The working principle of the invention is as follows: the sewage inlet pipe 2 is connected into a sewage discharge tank, when sewage enters the primary sedimentation tank body 1, the amount of the flocculating agent flowing out of the flow controller 5 is set according to the sewage amount, the flocculating agent flows out of the flocculating agent barrel 4 and is pressurized by the delivery pump 6 and delivered into the two delivery pipes 7, and then is sprayed into the sewage from the spray heads 17 at the two sides of the primary sedimentation tank body 1, because the two spray heads 17 face different directions, a small vortex can be formed in the spraying process to accelerate the action of the flocculating agent and the organic matters in the sewage, and finally the formed floccule and the floaters with the floccule slide to the lowest end of the filtering and conveying mechanism 11 and reach the slag outlet 14 along with the transmission of the filtering and conveying mechanism 11, because the highest point of the filtering and conveying mechanism 11 is higher than the slag hole 14, impurities fall on the guide plate 21 according to self gravity and slide out of the slag hole 14, and the filtered sewage is discharged into the next sewage treatment tank along the sewage discharge pipe 3.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A primary sedimentation tank for sewage treatment comprises a primary sedimentation tank body (1), and a sewage inlet pipe (2) and a sewage discharge pipe (3) which are arranged at two ends of the primary sedimentation tank body (1), and is characterized in that a flocculating agent barrel (4) is arranged outside the primary sedimentation tank body (1), and a flocculating agent is put into the primary sedimentation tank body (1) through the flocculating agent barrel (4) to remove suspended matters;

just sink the bottom of cell body (1) and be equipped with bottom of the pool structure (10), the bottom of the pool structure includes first slope (8) and second slope (9) of butt joint each other in the bottommost, second slope (9) top and one end opening set up, and the cliff (20) that both sides were equipped with, blow off pipe (3) stretch into the inside of second slope (9), along cliff (20) slope upwards is provided with filters conveying mechanism (11) and is used for carrying solid impurity, just sink cell body (1) and be close to the one end top of blow off pipe (3) is equipped with slag notch (14), the highest point that filters conveying mechanism (11) is higher than slag notch (14), and follow impurity through guide plate (21) slag notch (14) are discharged.

2. A primary sedimentation tank for sewage treatment according to claim 1, wherein the filtration conveyor mechanism (11) comprises a driving roller (13) provided at both ends of the inclined wall (20) and a mesh conveyor belt (18) sleeved on the driving roller (13), wherein the driving roller (13) is driven by a driving motor (12).

3. A primary sedimentation tank for sewage treatment in accordance with claim 2, wherein a plurality of hanging plates (19) are provided on the surface of the conveyor belt (18).

4. The primary sedimentation tank for sewage treatment as claimed in claim 1, wherein the discharge port of the flocculant barrel (4) is connected with a delivery pipe (7) through a delivery pump (6), the delivery pipe (7) is connected with a plurality of spray heads (17), and the spray heads (17) are arranged inside the primary sedimentation tank body (1).

5. A primary sedimentation tank for sewage treatment in accordance with claim 4, wherein a flow controller (5) is provided at the connection of the flocculant tank (4) and the transfer pump (6).

6. A primary sedimentation tank for sewage treatment in accordance with claim 4, wherein the transport pipes (7) are provided with two and located at both sides of the primary sedimentation tank body (1), wherein the spray heads (17) of one of the transport pipes (7) are inclined downward and the spray heads (17) of the other transport pipe (7) are inclined upward.

7. A primary sedimentation tank for sewage treatment in accordance with claim 1, wherein the surface of the slag outlet (14) is hinged by a gate (15).

8. The primary sedimentation tank for sewage treatment as claimed in claim 1, wherein a filter screen (16) is sleeved on one end of the sewage discharge pipe (3) extending into the primary sedimentation tank body (1).