CN204079733U - Sludge from wastewater treatment plant desanding device, pretreatment unit - Google Patents
Sludge from wastewater treatment plant desanding device, pretreatment unit Download PDFInfo
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- CN204079733U CN204079733U CN201420558150.XU CN201420558150U CN204079733U CN 204079733 U CN204079733 U CN 204079733U CN 201420558150 U CN201420558150 U CN 201420558150U CN 204079733 U CN204079733 U CN 204079733U
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Abstract
The utility model protects a kind of sludge from wastewater treatment plant desanding device, pretreatment unit.Sludge from wastewater treatment plant desanding device, comprise pretreatment unit and main tripping device, described pretreatment unit is pre-sifted, pre-sifted top is provided with many row's rod devices, rod device is in tilted layout along the flow direction of mud, and in rod device, many rod one end are fixedly mounted on pedestal, the other end is free end, and arranges along the flow direction of mud.The utility model, by adopting above-mentioned device, effectively can remove the soft fibers materials such as the hair in mud, reduces the sandstone in mud, improves the organic content of mud after processing, and reduces the concentration of mud, avoids Sediment Siltation.
Description
Technical field
The utility model relates to the process field of municipal sewage plant's primary sludge, particularly a kind of sludge from wastewater treatment plant desanding device, pretreatment unit.
Background technology
In recent years, along with the develop rapidly of society, the generation of municipal effluent also increases with day, and due to society's showing great attention to environmental protection, the quantity of Sewage Plant is also in growth at full speed, and mud also inevitably increases substantially as the by product of Sewage Plant.How economical, effectively, a large amount of mud of producing of these Sewage Plant for the treatment of and disposal safely, become the difficult problem that wastewater treatment in China field is urgently to be resolved hurrily.In sewage treatment process, inert inorganic material (silt) is gradually accumulated in Sewage treatment systems and not only affects wastewater treatment efficiency, and the wearing and tearing gathering the equipment of will speed up of mud silt, affects the normal operation of sewage work.
Practice shows, the Sewage Plant running 2-3 there will be Sediment Siltation (the usual degree of depth is at 0.5-1.5m) phenomenon mostly, mud organic constituent (MLVSS/MLSS) is in 0.30 ~ 0.50 mostly, even be low to moderate 0.25, unit sludge MLSS biological activity is low, constrains the lifting of Sewage treatment systems function.
Because each sewage work generally adopts (rotational flow grit chamber+grit water separator or aerated grit chamber+grit water separator), its desanding effect is not very desirable, mainly there is following problem:
1, Sewage treatment system equipment flow passage components (pump case, pipeline and elbow) serious wear, equipment runs, maintenance cost is high; The soft fibers materials such as the hair especially in sewage easily cause structure deteriorate.
2, sludge shale difference cement mill is reluctant to receive, and Sewage Plant has to pay higher sludge disposal expense to cement mill.
3, according to general sewage treatment process, primary sludge and excess sludge should together with enter into digester and digest, because its sand content is high, the biogas causing it to produce is impure, can not as recycling.
Each sewage work transforms on original basis, or builds horizontal flow type grit chamber, or original gas type is transformed into bottom viscous flow formula to carry out the separation of sand water, but does not all obtain ideal effect.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of sludge from wastewater treatment plant desanding device, pretreatment unit, can reduce the wearing and tearing of equipment, improves the organic content of the rear mud of process, reduces the concentration of mud.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of sludge from wastewater treatment plant desanding device, comprise pretreatment unit and main tripping device, described pretreatment unit is pre-sifted, and pre-sifted is provided with many row's rod devices, and rod device is in tilted layout along the flow direction of mud, in rod device, many rod one end are fixedly mounted on pedestal, and the other end is free end, and arrange along the flow direction of mud.
Described rod and horizontal plane angle are 0-15 degree, and the spacing between rod is 2-10mm.
Described pedestal is connected with the frame of pre-sifted by the mode of adjustable inclination.
Be provided with slurry storage tank below pre-sifted, above pre-sifted, be provided with at least one hydrodynamic cleaning device.
The structure of described main tripping device is: the slurry storage tank below pre-sifted enters mud pipeline by swirler and is connected with swirler, and swirler overflow passage is connected with middle storage tank;
Be provided with draining screen bottom swirler, on the sieve of draining screen, side is provided with slag-guiding plate, and the bottom of draining screen is provided with underflow collection bucket, and underflow collection bucket connects underflow mud extraction pipeline.
A kind of pretreatment unit of sludge from wastewater treatment plant desanding device, pre-sifted is provided with many row's rod devices, rod device is in tilted layout along the flow direction of mud, in rod device, many rod one end are fixedly mounted on pedestal, the other end is free end, and arranges along the flow direction of mud.
Described rod and horizontal plane angle are 0-15 degree, and the spacing between rod is 2-10mm.
Described pedestal is connected with the frame of pre-sifted by the mode of adjustable inclination.
Described pedestal both sides are connected with frame by adjusting bolt, and the below of pedestal is provided with voussoir.
A kind of sludge from wastewater treatment plant desanding method, comprises the following steps:
One, pre-treatment
Primary sludge is through pre-sifted by soft fibers material in primary sludge and macrobead removing, and pre-sifted sieve is gone to the bottom and flow to into slurry storage tank;
Pre-sifted top is provided with many row's rod devices, and rod device is in tilted layout along the flow direction of mud, in rod device, many rod one end are fixedly mounted on pedestal, the other end is free end, and arranges along the flow direction of mud, is provided with hydrodynamic cleaning device and coordinates flushing above pre-sifted;
Two, hydrocyclone solid-liquid separation
Mud in slurry storage tank is pumped to swirler through Pulp pump, through hydrocyclone effect, be separated into overflow slurry and enter middle storage tank by swirler overflow passage, the mud in middle storage tank is discharged in Sewage treatment systems by mud extraction pipeline and circulates, and swirler bottom slurry enters draining screen;
Three, draining screen screening
Enter the mud of draining screen, on sieve, slag charge enters slag-guiding plate, and the lower mud of sieve enters underflow collection bucket, and entering into storage basin through underflow mud extraction pipeline can directly security landfill after solidification treatment;
Sludge from wastewater treatment plant desanding is realized by above-mentioned steps.
A kind of sludge from wastewater treatment plant desanding device, pretreatment unit that the utility model provides, by adopting above-mentioned device and method, effectively can remove the soft fibers materials such as the hair in mud, reduce in mud sandstone, thus effectively reduce the wearing and tearing of successor devices and avoid successor devices to damage because of the winding of the soft fibers materials such as hair, improve the organic content of the rear mud of process, be beneficial to the biological treatment of later stage sewage, reduce the concentration of mud, avoid Sediment Siltation.
As shown in Figure 6, in mud after treatment, organic content significantly improves.More than 74 μm inorganics clearances are 95.7%, and total inorganics clearance is 52.8%, and flow is 18.5m
3during/h, its actual amount of slagging tap is 104kg, according to 3000m every day
3sludge quantity calculate, every day actual go out the quantity of slag be 16.86 tons.Pretreatment unit water ratio of slagging tap is 47.164%, and draining screen water ratio of slagging tap is 54.19%.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is the schematic front view of the utility model device.
Fig. 2 is the schematic top plan view of the utility model device.
Fig. 3 is the main TV structure schematic diagram of pre-sifted in the utility model.
Fig. 4 is the left TV structure schematic diagram of pre-sifted in the utility model.
Fig. 5 is the plan structure schematic diagram of pre-sifted in the utility model.
Fig. 6 is through the turnover mud organic part of comparison diagram after the utility model process.
In figure: enter mud pipeline 1, hydrodynamic cleaning device 2, pre-sifted 3, rod 31, pedestal 32, frame 33, adjusting bolt 34, voussoir 35, slurry storage tank 4, Pulp pump 5, swirler enters mud pipeline 6, swirler 7, draining screen 8, underflow collection bucket 9, underflow mud extraction pipeline 10, swirler overflow passage 11, middle storage tank 12, mud extraction pipeline 13, storage basin 14, slag-guiding plate 15, angle a.
Embodiment
Embodiment 1:
As in Fig. 1 ~ 5, a kind of sludge from wastewater treatment plant desanding device, comprise pretreatment unit and main tripping device, described pretreatment unit is pre-sifted 3, and pre-sifted 3 top is provided with many row's rod devices, and rod device is in tilted layout along the flow direction of mud, in rod device, many rod 31 one end are fixedly mounted on pedestal 32, and the other end is free end, and arrange along the flow direction of mud.As shown in Figure 3, pedestal 32 is positioned at the upstream of sludge stream, and root rod 31 free end is positioned at the downstream of sludge stream, adopts this structure to be convenient to clear up the soft fibers materials such as the hair of winding on rod 31.
Described rod 31 is 0-15 degree with horizontal plane angle a, and this example is 8-10 degree preferably, and the spacing between rod 31 is 2-10mm, and this example is 4-6 mm preferably.
Described pedestal 32 is connected with the frame 33 of pre-sifted 3 by the mode of adjustable inclination.This mediation practices is: the inclination angle being regulated rod 31 by the spacing reconciled between each rod 31 and pedestal 32 assembly, and at a distance of comparatively near, then posterior rod 31 is raised by preceding pedestal 32, and thus angle a is comparatively large, otherwise then less.
Or be connected with frame 33 by adjusting bolt 34 for described pedestal 32 both sides, the below of pedestal 32 is provided with voussoir 35.Reconciled the inclination angle of pedestal 32 by the position of adjusting wedge 35, thus regulate the size of rod 31 and horizontal plane angle a.
Slurry storage tank 4 is provided with below pre-sifted 3, at least one hydrodynamic cleaning device 2 is provided with above pre-sifted 3, as in Fig. 2, described hydrodynamic cleaning device 2 is arranged on the both sides above pre-sifted 3, the shower nozzle of hydrodynamic cleaning device 2 becomes fan-shaped, to make the current gone out become fan-shaped, the axis of shower nozzle and the longitudinal center line of pre-sifted 3 have the angle of 30-60 degree.
The hydrodynamic cleaning device 2 arranged effectively can dilute sludge slurry, thus reduces intractability.The hydrodynamic cleaning device 2 arranged, is also conducive to the screen overflow of pre-sifted 3, such as larger-diameter sandstone, and is wrapped in the soft fibers materials such as hair on rod 31 and is washed into slag-guiding plate 15.Realize the removal of 2 ~ more than 10mm sandstone and hair in primary sludge.
The structure of described main tripping device is: the slurry storage tank 4 below pre-sifted 3 enters mud pipeline 6 by swirler and is connected with swirler 7, and swirler overflow passage 11 is connected with middle storage tank 12;
Be provided with draining screen 8 bottom swirler 7, on the sieve of draining screen 8, side is provided with slag-guiding plate 15, and the bottom of draining screen 8 is provided with underflow collection bucket 9, is provided with underflow mud extraction pipeline 10 bottom underflow collection bucket 9.
Wherein draining screen configures the polyurethane sieve plate in individual layer 0.2mm aperture.Draining screen setting angle is-6
0-0
0.
The structure of textural association thus, realize the steady removal being greater than 0.1mm silt sand in mud, dregs is directly transported outward, reach outer row's material not secondary contaminate environment, or carrying out recycling, clear liquid is directly got back in follow-up Sewage treatment systems and is gone, or utilizes pump to be input to hydrodynamic cleaning device 2.
Embodiment 2:
As in Fig. 3-5, a kind of pretreatment unit of sludge from wastewater treatment plant desanding device, pre-sifted 3 top is provided with many row's rod devices, rod device is in tilted layout along the flow direction of mud, in rod device, many rod 31 one end are fixedly mounted on pedestal 32, and the other end is free end, and arrange along the flow direction of mud.
Described rod 31 is 0-15 degree with horizontal plane angle, and the spacing between rod 31 is 2-10mm.
Described pedestal 32 is connected with the frame 33 of pre-sifted 3 by the mode of adjustable inclination.
Described pedestal 32 both sides are connected with frame 33 by adjusting bolt 34, and the below of pedestal 32 is provided with voussoir 35.This device is as the core component of in embodiment 1, and unspecified part is in the same manner as in Example 1.
Embodiment 3:
A kind of sludge from wastewater treatment plant desanding method, comprises the following steps:
One, pre-treatment
On the basis of the equipment of embodiment 1,2, primary sludge is through pre-sifted 3 by soft fibers material in primary sludge and the removing of macrobead sandstone, and pre-sifted 3 sieve is gone to the bottom and flow to into slurry storage tank 4; The inlet pipe road of pre-sifted 3 is provided with under meter measure slurries.
Pre-sifted 3 top is provided with many row's rod devices, rod device is in tilted layout along the flow direction of mud, in rod device, many rod 31 one end are fixedly mounted on pedestal 32, the other end is free end, and arrange along the flow direction of mud, be provided with hydrodynamic cleaning device 2 above pre-sifted 3 and coordinate flushing; The soft fibers material such as hair that pre-sifted 3 is separated and large particulate matter can direct landfills.
Two, hydrocyclone solid-liquid separation
Mud in slurry storage tank 4 is pumped to swirler 7 through Pulp pump 5, through hydrocyclone effect, be separated into overflow slurry and enter middle storage tank 12 by swirler overflow passage 11, mud in middle storage tank 12 is discharged in Sewage treatment systems by mud extraction pipeline 13 and circulates, and bottom slurry enters draining screen 8;
Three, draining screen screening
Enter the mud of draining screen 8, on sieve, slag charge enters slag-guiding plate 15, the slag charge sieved out can carry out recycling, and the lower mud of sieve enters underflow collection bucket 9, and entering into storage basin 14 through underflow mud extraction pipeline 10 can directly security landfill after adding solidifying agent solidification treatment;
Sludge from wastewater treatment plant desanding is realized by above-mentioned steps.Primary sludge after the process of the utility model mud desanding system, organic content significantly improves, and sludge concentration significantly declines, and is beneficial to the saprobiaization process in later stage.Adopt the device and method in this example, more than 74 μm inorganics clearances are 95.7%, and total inorganics clearance is 52.8%, and flow is 18.5m
3during/h, its actual amount of slagging tap is 104kg, according to 3000m every day
3sludge quantity calculate, every day actual go out the quantity of slag be 16.86 tons.Pretreatment unit water ratio of slagging tap is 47.164%, and draining screen water ratio of slagging tap is 54.19%.
The above embodiments are only optimal technical scheme of the present utility model; and should not be considered as restriction of the present utility model; the technical scheme that protection domain of the present utility model should be recorded with claim, the equivalents comprising technical characteristic in the technical scheme of claim record is protection domain.Namely the equivalent replacement within the scope of this improves, also within protection domain of the present utility model.
Claims (9)
1. a sludge from wastewater treatment plant desanding device, comprise pretreatment unit and main tripping device, it is characterized in that: described pretreatment unit is pre-sifted (3), pre-sifted (3) is provided with many row's rod devices, rod device is in tilted layout along the flow direction of mud, and in rod device, many rod (31) one end are fixedly mounted on pedestal (32), the other end is free end, and arranges along the flow direction of mud.
2. a kind of sludge from wastewater treatment plant desanding device according to claim 1, is characterized in that: described rod (31) and horizontal plane angle (a) are 0-15 degree, and the spacing between rod (31) is 2-10mm.
3. a kind of sludge from wastewater treatment plant desanding device according to claim 1, is characterized in that: described pedestal (32) is connected with the frame (33) of pre-sifted (3) by the mode of adjustable inclination.
4. a kind of sludge from wastewater treatment plant desanding device according to claim 1, is characterized in that: pre-sifted (3) below is provided with slurry storage tank (4), and pre-sifted (3) top is provided with at least one hydrodynamic cleaning device (2).
5. a kind of sludge from wastewater treatment plant desanding device according to claim 1 or 4, it is characterized in that: the structure of described main tripping device is: the slurry storage tank (4) of pre-sifted (3) below enters mud pipeline (6) by swirler and is connected with swirler (7), and swirler overflow passage (11) is connected with middle storage tank (12);
Swirler (7) bottom is provided with draining screen (8), and on the sieve of draining screen (8), side is provided with slag-guiding plate (15), and the bottom of draining screen (8) is provided with underflow collection bucket (9), and underflow collection bucket (9) connects underflow mud extraction pipeline (10).
6. the pretreatment unit of a sludge from wastewater treatment plant desanding device, it is characterized in that: pre-sifted (3) is provided with many row's rod devices, rod device is in tilted layout along the flow direction of mud, in rod device, many rod (31) one end are fixedly mounted on pedestal (32), the other end is free end, and arranges along the flow direction of mud.
7. the pretreatment unit of a kind of sludge from wastewater treatment plant desanding device according to claim 1, is characterized in that: described rod (31) and horizontal plane angle are 0-15 degree, and the spacing between rod (31) is 2-10mm.
8. the pretreatment unit of a kind of sludge from wastewater treatment plant desanding device according to claim 1, is characterized in that: described pedestal (32) is connected with the frame (33) of pre-sifted (3) by the mode of adjustable inclination.
9. the pretreatment unit of a kind of sludge from wastewater treatment plant desanding device according to claim 1, it is characterized in that: described pedestal (32) both sides are connected with frame (33) by adjusting bolt (34), and the below of pedestal (32) is provided with voussoir (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420558150.XU CN204079733U (en) | 2014-09-26 | 2014-09-26 | Sludge from wastewater treatment plant desanding device, pretreatment unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420558150.XU CN204079733U (en) | 2014-09-26 | 2014-09-26 | Sludge from wastewater treatment plant desanding device, pretreatment unit |
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| CN204079733U true CN204079733U (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420558150.XU Withdrawn - After Issue CN204079733U (en) | 2014-09-26 | 2014-09-26 | Sludge from wastewater treatment plant desanding device, pretreatment unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104211273A (en) * | 2014-09-26 | 2014-12-17 | 黑旋风工程机械开发有限公司 | Sludge desanding device, pretreatment device and method for municipal sewage plant |
| CN105293602A (en) * | 2015-11-20 | 2016-02-03 | 无锡山川环保机械有限公司 | Hair slipping component of cylindrical hydraulic hair fishing machine |
-
2014
- 2014-09-26 CN CN201420558150.XU patent/CN204079733U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104211273A (en) * | 2014-09-26 | 2014-12-17 | 黑旋风工程机械开发有限公司 | Sludge desanding device, pretreatment device and method for municipal sewage plant |
| CN104211273B (en) * | 2014-09-26 | 2016-06-08 | 三川德青工程机械有限公司 | Sludge from wastewater treatment plant desanding device, pretreatment unit and method |
| CN105293602A (en) * | 2015-11-20 | 2016-02-03 | 无锡山川环保机械有限公司 | Hair slipping component of cylindrical hydraulic hair fishing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150107 Effective date of abandoning: 20160608 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |