CN210945165U - Sewage treatment system who contains fine sludge - Google Patents

Sewage treatment system who contains fine sludge Download PDF

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Publication number
CN210945165U
CN210945165U CN201921846794.8U CN201921846794U CN210945165U CN 210945165 U CN210945165 U CN 210945165U CN 201921846794 U CN201921846794 U CN 201921846794U CN 210945165 U CN210945165 U CN 210945165U
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tank
sedimentation tank
treatment system
pressing unit
sewage treatment
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CN201921846794.8U
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李骥
刘艳博
武思齐
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Guiyang University
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Guiyang University
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Abstract

The utility model discloses a sewage treatment system who contains thin mud belongs to the water treatment system field, has solved among the prior art thin mud settlement insufficient to and because take partial mud in the sewage and bring adverse effect for follow-up sewage treatment's problem. The utility model discloses a sedimentation tank and secondary sedimentation tank carry out twice subsides to the sewage that contains thin mud, the filter screen that the rethread set up on the pipeline intercepts partial flocculate, get into the electric flocculation basin again through twice subside and filterable liquid, further flocculation sedimentation on the one hand, on the other hand has carried out preliminary treatment to sewage through electric flocculation, solid-liquid separation and the further processing of sheet frame filter pressing unit through the filter tank again, the sewage that gets into in the sewage treatment system does not carry mud completely, the thin mud that subsides is handled through the suppression unit, not only can discharge a large amount of moisture that carries in the thin mud, also be the shaping suppression before the sintering, at last thin mud through the sintering has obtained the maximize utilization simultaneously.

Description

Sewage treatment system who contains fine sludge
Technical Field
The utility model belongs to the technical field of water treatment system, concretely relates to sewage treatment system who contains thin mud.
Background
In a common sewage treatment system, especially in urban sewage treatment, sewage is generally directly discharged and collected into a water treatment system, and because a large amount of sludge is often carried in the sewage, whether the sewage is used for treatment and reuse or is used for irrigation after simple treatment, on one hand, a large burden is brought to the water treatment system, and on the other hand, the sludge is often not well treated in the common treatment system.
The fine sludge has very fine particles, large density and high water content, and is easy to be decomposed and smelly due to the high content of organic matters, and the fine sludge is difficult to treat due to the special properties. The conventional treatment method is mainly to add a flocculating agent or a sedimentation agent for precipitation, but fine sludge particles are small and high in density, are not easy to react sufficiently, and cannot be degraded sufficiently due to insufficient reaction. In the sewage treatment system containing fine sludge, which is named in the patent number of CN201810018504.4, the addition mode and the reaction stirring mode of a flocculating agent or a sedimentation agent are mainly improved, but the aim of full sedimentation still cannot be achieved, the obtained sedimentation sludge cannot be fully utilized, and the sewage treatment system is partially burdened in the subsequent water treatment because the water still contains partial sludge.
Therefore, it is important to effectively treat and reasonably utilize the fine sludge.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve among the prior art fine sludge settlement insufficient to and because carry partial mud in the sewage and bring adverse effect for follow-up sewage treatment's problem, provide the sewage treatment system who contains fine sludge.
In order to achieve the above object, the utility model provides a following technical scheme:
a sewage treatment system containing fine sludge is characterized by comprising a pressing unit, a sintering unit, a storage pool, a primary sedimentation pool, a secondary sedimentation pool, an electric flocculation pool, a filter pool, a plate frame filter pressing unit and a sewage treatment system which are sequentially connected through pipelines; feeding devices are arranged above the primary sedimentation tank and the secondary sedimentation tank, and stirring devices are arranged in the primary sedimentation tank and the secondary sedimentation tank; a lifting screw is arranged in the secondary sedimentation tank, one end of the lifting screw extends into the secondary sedimentation tank, and the other end of the lifting screw is connected with the output end of the first motor; the pipeline between the secondary sedimentation tank and the electric flocculation tank is connected through a flange, a valve is arranged on the pipeline between the flange and the secondary sedimentation tank, and a filter screen is arranged at the joint of the flange; the primary sedimentation tank, the secondary sedimentation tank, the filter tank and the plate frame filter pressing unit are all connected with the pressing unit, and the pressing unit is connected with the sintering unit.
Furthermore, concentration monitoring devices are arranged between the feeding device and the primary sedimentation tank and between the feeding device and the secondary sedimentation tank.
Furthermore, liquid level monitoring units are arranged in the storage pool, the primary sedimentation pool, the secondary sedimentation pool, the electric flocculation pool and the filtering pool.
Furthermore, a flow monitoring device and a flow regulating valve are arranged on the pipelines connecting the storage pool, the primary sedimentation pool, the secondary sedimentation pool, the electric flocculation pool, the filter pool, the plate frame filter pressing unit and the sewage treatment system.
Further, a drying unit is arranged between the pressing unit and the sintering unit.
Furthermore, outlets are arranged at the bottoms of the primary sedimentation tank, the secondary sedimentation tank and the filtering tank, the outlets are connected with screw pumps, and the outlets of the screw pumps are connected with the pressing unit; the plate frame filter pressing unit is connected with the pressing unit through a conveyor belt.
Furthermore, a muddy water collecting unit is arranged between the primary sedimentation tank and the pressing unit, between the secondary sedimentation tank and the pressing unit, between the filter tank and the pressing unit, and between the plate frame filter pressing unit and the pressing unit.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a treatment system, carry out twice settlement to the sewage that contains thin mud through a settling basin and secondary settling basin, the filter screen that the rethread set up on the pipeline intercepts partial flocculate, get into the electric flocculation basin again through twice settlement and filterable liquid, further flocculation and settlement on the one hand, on the other hand has carried out preliminary treatment to sewage through electric flocculation, pass through the solid-liquid separation of filtering ponds again and the further processing of filter-pressing sheet frame unit, the sewage that gets into in the sewage treatment system has not carried mud completely, and sewage has passed through electric flocculation and has adjusted the pH value. In addition, the settled fine sludge is treated by the pressing unit, so that a large amount of moisture carried in the fine sludge can be discharged, the fine sludge is molded and pressed before sintering, and finally, the sintered fine sludge is simultaneously utilized to the maximum extent.
Further, the utility model discloses a set up concentration monitoring device, can be according to the sewage concentration condition in primary sedimentation tank and the secondary sedimentation tank reasonable appropriate add flocculating agent or subside agent through feeding device.
Further, the utility model discloses a liquid level monitoring unit judges the handling capacity of system in real time.
Further, the utility model discloses a flow monitoring device and flow control valve be convenient for operating personnel and carry out flow control according to the demand, be convenient for deal with if meetting special or emergency in addition.
Further, the utility model discloses increase the stoving unit before the sintering unit, further dry the mud through the suppression, subsequent sintering of being convenient for also reduces because of the uneven sintering and the sintering quality that lead to of moisture content height or moisture content are not good.
Further, the utility model discloses increase the muddy water collection unit, because organic matter content is higher in the thin mud of collection, still can be used as fertilizer through retrieving, therefore muddy water collection unit provides more available ways for thin mud.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
In the figure, 1-storage pool; 2-a primary sedimentation tank; 3-a secondary sedimentation tank; 4-lifting screw; 5-a first motor; 6-filtering the screen; 7-a flange; 8-a second motor; 9-an electric flocculation tank; 10-a filtration tank; 11-a plate and frame filter pressing unit; 12-a sewage treatment system; 13-a press unit; 14-a drying unit; 15-a sintering unit; 16-conveyor belt.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below 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 in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
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 not limitations of the present invention.
A sewage treatment system containing fine sludge comprises a pressing unit 13, a sintering unit 15, a storage pool 1, a primary sedimentation pool 2, a secondary sedimentation pool 3, an electric flocculation pool 9, a filter pool 10, a plate frame filter pressing unit 11 and a sewage treatment system 12 which are sequentially connected through pipelines; feeding devices are arranged above the primary sedimentation tank 2 and the secondary sedimentation tank 3, and stirring devices are arranged inside the primary sedimentation tank 2 and the secondary sedimentation tank 3; a lifting screw rod 4 is arranged in the secondary sedimentation tank 3, one end of the lifting screw rod 4 extends into the secondary sedimentation tank 3, and the other end of the lifting screw rod 4 is connected with the output end of a first motor 5; a pipeline between the secondary sedimentation tank 3 and the electric flocculation tank 9 is connected through a flange 7, a valve is arranged on the pipeline between the flange 7 and the secondary sedimentation tank 3, a filter screen 6 is arranged at the joint of the flange 7, and a second motor 8 is connected to the filter screen 6 and used for driving the filter screen 6 to move; the primary sedimentation tank 2, the secondary sedimentation tank 3, the filter tank 10 and the plate frame filter pressing unit 11 are all connected with the pressing unit 13, and the pressing unit 13 is connected with the sintering unit 15.
The working principle and the working process of the system are as follows:
if the amount of the sewage containing the fine sludge is large, the sewage enters a storage pool 1, then the sewage is introduced into a primary sedimentation pool 2 according to the condition, if the amount is small, the sewage can also directly enter the primary sedimentation pool 2, a proper amount of flocculating agent or sedimentation agent is added through a feeding device above, the sewage is mixed by a stirring device to carry out primary sedimentation, the sewage on the upper layer is continuously introduced into a secondary sedimentation pool 3, a proper amount of flocculating agent or sedimentation agent is also added to carry out secondary sedimentation, the sewage on the upper layer flows through a filter screen 6 before entering an electric flocculation pool 9, the filter screen 6 intercepts flocculated and unsettled floccules in the sewage, the flocculated and sedimentated floccules in the electric flocculation pool 9, and meanwhile. The electric flocculation utilizes the dissociation of electricity, under the assistance of a chemical coagulant, not only achieves the effect of flocculation and sedimentation, but also can remove pollutants in wastewater or convert toxic substances into non-toxic substances. After the electrocoagulation, after solid-liquid separation in a filter 10, if a trace amount of fine sludge is contained, the ultrafine and residual sludge is removed by a plate-and-frame filter pressing unit 11 and then discharged into a sewage treatment system 12. Meanwhile, the sludge obtained by settling the primary settling tank 2, the secondary settling tank 3, the filter tank 10 and the plate-and-frame filter pressing unit 11 enters the pressing unit 13, so that a large amount of moisture contained in the sludge can be removed not only in the forming process before sintering.
Above-mentioned each link can be according to the sewage actual conditions who contains fine sludge to and the actual demand of operation increases each unit, if can increase and decrease sedimentation tank quantity, also can not carry out the plate frame filter-pressing if satisfied the demand behind filtering pond 10, other each units are the same reason.
The stirring device may be a rotary stirring device, or may be any of vibration stirring and magnetic stirring, and the specific selection is adjusted according to the use and system design requirements.
When adding chemical agent respectively to primary sedimentation tank 2 and secondary sedimentation tank 3 through feeding device, in order to can practice thrift the medicament addition and reach best flocculation effect simultaneously, between feeding device and primary sedimentation tank 2, all be equipped with concentration monitoring device between feeding device and the secondary sedimentation tank 3, concentration monitoring device real-time supervision is the particle concentration of sewage in primary sedimentation tank 2 and the secondary sedimentation tank 3 to the medicament volume that will need to add feeds back to corresponding feeding device.
In addition, a flow monitoring device and a flow regulating valve are arranged on the pipelines connecting the storage pool 1, the primary sedimentation pool 2, the secondary sedimentation pool 3, the electric flocculation pool 9, the filter pool 10, the plate frame filter pressing unit 11 and the sewage treatment system 12. The main reason is that sewage often stability is relatively poor, and each unit can be controlled the flow according to the processing conditions, and flow monitoring device also is convenient for operating personnel in time to observe and adjust. Correspondingly, liquid level monitoring units are arranged in the storage pool 1, the primary sedimentation pool 2, the secondary sedimentation pool 3, the electric flocculation pool 9 and the filtering pool 10, and unnecessary safety problems caused by the fact that the liquid level exceeds the processing range are avoided.
In the embodiment, the sludge enters the pressing unit 13 in a mode that outlets are arranged at the bottoms of the primary sedimentation tank 2, the secondary sedimentation tank 3 and the filtering tank 10, the outlets are connected with screw pumps, the outlets of the screw pumps are connected with the pressing unit 13, and the sludge is introduced into the pressing unit 13 through the screw pumps; and after the plate and frame filter pressing unit 11 is subjected to filter pressing, the obtained sludge is conveyed to the pressing unit 13 through a conveying belt 16. Of course, the screw pump and the conveyor belt 16 are preferred solutions, and other pumps capable of conveying sludge and conveying materials are optional solutions of the present invention.
The pressing unit 13 forms the sludge, but because the sludge contains a large amount of moisture and directly enters the sintering unit 15, the firing quality may be affected or not good due to excessive moisture or uneven moisture distribution, and therefore, a drying unit 14 is further arranged between the pressing unit 13 and the sintering unit 15. The formed sludge is fully dried firstly, and because a large amount of moisture is discharged during pressing, excessive energy consumption is avoided during the drying process, so that the uniformity is ensured during firing. The drying can be directly heated, warm air or natural air can be introduced at the same time, and other modes capable of achieving the drying purpose can be adopted.
In addition to the recycling manner of pressing the sludge, the sludge particles are fine and often adsorb a large amount of organic matters, so the sludge particles can be used as a good raw material for processing fertilizers, or can be processed into special soil, and therefore, sludge and water collecting units are arranged between the primary sedimentation tank 2 and the pressing unit 13, between the secondary sedimentation tank 3 and the pressing unit 13, between the filter tank 10 and the pressing unit 13, and between the plate frame filter pressing unit 11 and the pressing unit 13. Be convenient for operating personnel is using the utility model discloses a during the system, can select the usage of mud according to the demand.
The utility model discloses a processing system subsides through the tertiary messenger thin mud and fully separates, and rethread sheet frame filter-pressing makes its complete separation, and electric flocculation tank 9 can play preliminary regulation's effect to sewage simultaneously, provides multiple choice for the retrieval and utilization of thin mud in addition, and entire system modularized design, and the range of application is extensive.
The above is only the embodiment of the present invention, and is not the limitation of the protection scope of the present invention, all the equivalent structure changes made in the contents of the specification and the drawings, or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims (9)

1. A sewage treatment system containing fine sludge is characterized by comprising a pressing unit (13), a sintering unit (15), a storage pool (1), a primary sedimentation pool (2), a secondary sedimentation pool (3), an electric flocculation pool (9), a filter pool (10), a plate frame filter pressing unit (11) and a sewage treatment system (12) which are sequentially connected through pipelines; feeding devices are arranged above the primary sedimentation tank (2) and the secondary sedimentation tank (3), and stirring devices are arranged inside the primary sedimentation tank (2) and the secondary sedimentation tank (3); a lifting screw (4) is arranged in the secondary sedimentation tank (3), one end of the lifting screw (4) extends into the secondary sedimentation tank (3), and the other end of the lifting screw is connected with the output end of a first motor (5); a pipeline between the secondary sedimentation tank (3) and the electric flocculation tank (9) is connected through a flange (7), a valve is arranged on the pipeline between the flange (7) and the secondary sedimentation tank (3), and a filter screen (6) is arranged at the joint of the flange (7); the primary sedimentation tank (2), the secondary sedimentation tank (3), the filter tank (10) and the plate-and-frame filter pressing unit (11) are all connected with the pressing unit (13), and the pressing unit (13) is connected with the sintering unit (15).
2. The fine sludge-containing sewage treatment system according to claim 1, wherein concentration monitoring devices are provided between the feeding device and the primary sedimentation tank (2) and between the feeding device and the secondary sedimentation tank (3).
3. The fine sludge-containing sewage treatment system according to claim 1, wherein liquid level monitoring units are arranged in the storage tank (1), the primary sedimentation tank (2), the secondary sedimentation tank (3), the electric flocculation tank (9) and the filtration tank (10).
4. The sewage treatment system containing fine sludge according to claim 1, wherein the pipelines connecting the storage tank (1), the primary sedimentation tank (2), the secondary sedimentation tank (3), the electric flocculation tank (9), the filtering tank (10), the plate-and-frame filter pressing unit (11) and the sewage treatment system (12) are provided with a flow monitoring device and a flow regulating valve.
5. The fine sludge-containing sewage treatment system according to claim 1, further comprising a drying unit (14) between the pressing unit (13) and the sintering unit (15).
6. The fine sludge-containing sewage treatment system according to claim 1, wherein outlets are provided at the bottom of the primary sedimentation tank (2), the secondary sedimentation tank (3) and the filtering tank (10), and the outlets of the three are respectively connected with a screw pump, and the outlet of each screw pump is connected to the pressing unit (13).
7. The fine sludge containing wastewater treatment system according to claim 1, wherein the plate and frame filter press unit (11) is connected to the press unit (13) by a conveyor belt (16).
8. The sewage treatment system containing fine sludge according to claim 1, wherein a sludge water collecting unit is arranged between the primary settling tank (2) and the pressing unit (13), between the secondary settling tank (3) and the pressing unit (13), between the filtering tank (10) and the pressing unit (13), and between the plate frame filter pressing unit (11) and the pressing unit (13).
9. The fine sludge containing wastewater treatment system according to claim 1, wherein a second motor (8) is connected to the screen (6).
CN201921846794.8U 2019-10-30 2019-10-30 Sewage treatment system who contains fine sludge Active CN210945165U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921846794.8U CN210945165U (en) 2019-10-30 2019-10-30 Sewage treatment system who contains fine sludge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921846794.8U CN210945165U (en) 2019-10-30 2019-10-30 Sewage treatment system who contains fine sludge

Publications (1)

Publication Number Publication Date
CN210945165U true CN210945165U (en) 2020-07-07

Family

ID=71395595

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Application Number Title Priority Date Filing Date
CN201921846794.8U Active CN210945165U (en) 2019-10-30 2019-10-30 Sewage treatment system who contains fine sludge

Country Status (1)

Country Link
CN (1) CN210945165U (en)

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