CN220618730U - Centrifugal sludge dewatering device - Google Patents
Centrifugal sludge dewatering device Download PDFInfo
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- CN220618730U CN220618730U CN202322303065.0U CN202322303065U CN220618730U CN 220618730 U CN220618730 U CN 220618730U CN 202322303065 U CN202322303065 U CN 202322303065U CN 220618730 U CN220618730 U CN 220618730U
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- mud
- centrifugal
- sludge
- advance
- rotary drum
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- 239000010802 sludge Substances 0.000 title claims abstract description 114
- 230000018044 dehydration Effects 0.000 claims abstract description 49
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 49
- 238000007873 sieving Methods 0.000 claims abstract description 13
- 239000010865 sewage Substances 0.000 claims description 26
- 238000010926 purge Methods 0.000 claims description 18
- 238000012216 screening Methods 0.000 claims description 17
- 238000007670 refining Methods 0.000 claims description 9
- 238000007599 discharging Methods 0.000 abstract description 5
- 208000005156 Dehydration Diseases 0.000 description 38
- 230000005484 gravity Effects 0.000 description 8
- 238000005265 energy consumption Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000007664 blowing Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000010408 sweeping Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Centrifugal Separators (AREA)
Abstract
The utility model discloses a centrifugal sludge dewatering device, which belongs to the technical field of sludge treatment and comprises: advance mud conveyer belt, advance mud bucket, centrifugal sludge dewatering device, mud discharging conveyer belt and drain pipe, advance mud conveyer belt and lie in the top of advancing mud bucket, advance mud bucket and install on the top of mud dehydration urceolus, fixed motor installs on the top of advancing mud bucket, the output at fixed motor is installed to the connecting axle, mud refines sieving mechanism and installs in centrifugal dewatering rotary drum, the connecting axle refines sieving mechanism and centrifugal dewatering rotary drum bottom with mud and is connected, mud is collected the bucket and is installed in the bottom of mud dehydration urceolus, the drain pipe communicates with the lateral wall of mud collection bucket, be provided with the net on the centrifugal dewatering rotary drum lateral wall, mud discharging conveyer belt is located the below of mud collection bucket. The utility model realizes the dehydration of sludge through a simple structure, saves cost, improves working efficiency, saves energy, and has convenient operation and strong practicability.
Description
Technical Field
The utility model belongs to the technical field of sludge treatment, and particularly relates to a centrifugal sludge dewatering device.
Background
The sewage can generate a large amount of sludge after precipitation treatment, the water content is up to 96% even after concentration and digestion treatment, the volume is large, the sewage is difficult to be absorbed and treated, and the solid content of mud cakes is improved through dehydration treatment, so that the occupied area of sludge stacking is reduced.
The sludge of the sewage treatment plant is approximately: materialized sludge, biochemical sludge, materialized biochemical mixed sludge and the like. Various kinds of sludge have certain different adaptation to the dehydrator, and common types of domestic sludge dehydrators are as follows: centrifugal, filter belt, spiral annular disc type and plate frame type. The dewatering of the precipitated sludge, the selection and proportioning operation of the flocculant are critical, the flocculation effect is good, and the dewatering of the sludge is relatively smooth.
Filter belt type: the method is suitable for materialized sludge, the water content of a filter cake is low, the adaptability to mixed sludge and biochemical sludge is poor, the amount of returned sludge is large, the water consumption for back flushing is high, the energy consumption is high, and the maintenance is complex.
A helical ring policy: the first generation dehydrator represented by Japanese model machine has been popularized and applied for 3-4 years in China, and has the defect of low yield.
Conventional centrifugal type: all three kinds of sludge can be suitable, but the energy consumption is high, and the noise is large due to high rotating speed.
Disclosure of Invention
In view of the above, the present utility model provides a centrifugal sludge dewatering device for solving the above problems.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
a centrifugal sludge dewatering device, comprising: advance mud conveyer belt, advance mud bucket, centrifugal sludge dewatering device, arrange mud conveyer belt and drain pipe, advance mud conveyer belt and be located advance the top of mud bucket, centrifugal sludge dewatering device includes fixed motor, connecting axle, mud dehydration urceolus, centrifugal dehydration rotary drum, mud refine sieving mechanism and mud collection fill, advance the mud bucket and install the top of mud dehydration urceolus, fixed motor installs advance the top of mud bucket, the connecting axle is installed fixed motor's output, mud refines the sieving mechanism and installs in the centrifugal dehydration rotary drum, the connecting axle passes advance the mud bucket, stretch into in the centrifugal dehydration rotary drum with mud refines sieving mechanism with centrifugal dehydration rotary drum bottom fixed connection, the mud collection fill is installed the bottom of mud dehydration urceolus, the drain pipe with the lateral wall intercommunication of mud collection fill, be provided with the net on the centrifugal dehydration rotary drum lateral wall, arrange the mud conveyer belt and be located the below of mud collection fill.
Further, a sewage collecting weir groove is formed in the top end of the sludge collecting hopper, the sewage collecting weir groove is located below the position between the sludge dewatering outer cylinder and the centrifugal dewatering rotary cylinder, and the drain pipe is communicated with the sewage collecting weir groove.
Further, the sludge refining screening device comprises screening grids and sludge refining cutting points, wherein a plurality of sludge refining cutting points are distributed on the screening grids, and the screening grids are fixedly connected with the connecting shaft.
Further, the sludge dewatering device further comprises an air purging device, wherein the air purging device is installed on the sludge dewatering outer cylinder, and the output end of the air purging device is aligned to the outer wall of the centrifugal dewatering outer cylinder.
Further, a plurality of purge pipes are arranged on the air purge device from top to bottom.
The utility model has the beneficial effects that:
1. the sludge refining and screening device in the device can cut the massive sludge through the sharp cutting points and further refine and screen the sludge through the sludge screening grids below so as to ensure that the sludge enters the centrifugal dewatering drum for better dewatering;
2. the grid is arranged on the wall of the rotary drum of the centrifugal dehydration rotary drum in the device, and the rotary speed of the centrifugal dehydration rotary drum is adjusted to adapt to sludge with different water contents, so that the sludge after dehydration can be effectively intercepted, and the sewage can be thrown out;
3. compared with the common sludge dewatering device, the device has the advantages that the rotating speed of sludge dewatering is controlled more flexibly, the energy consumption can be effectively saved, and the noise is reduced;
4. the device can manually control the air stripping device, control the air blowing intensity and frequency according to the sludge quantity and the caking degree of the sludge on the centrifugal dehydration rotary drum, effectively save energy consumption and prolong the service life of equipment.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of the overall structure of the device of the present utility model.
FIG. 2 is a schematic cross-sectional view of a sludge refining screening apparatus of the present utility model.
FIG. 3 is a schematic plan view of a sludge refining screening apparatus of the present utility model.
FIG. 4 is a schematic diagram of the centrifugal dewatering force of the sludge in the device of the utility model.
Wherein, in the figure:
1-mud feeding conveyor belt, 2-fixed motor, 3-connecting axle, 4-mud feeding hopper, 5-air sweeping device, 6-mud refine sieving mechanism, 7-centrifugal dehydration rotary drum, 8-net, 9-mud collecting hopper, 10-sewage collecting weir groove, 11-mud discharging conveyor belt, 12-drain pipe, 13-centrifugal mud dehydrating device, 14-mud refine cutting point, 15-sieving net, 16-mud dehydrating outer cylinder, 17-sweeping pipe.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 4, the present utility model provides a centrifugal sludge dewatering apparatus, comprising: advance mud conveyer belt 1, advance mud bucket 4, centrifugal sludge dewatering device 13, mud discharge conveyer belt 11 and drain pipe 12, advance mud conveyer belt 1 and be located the top of advancing mud bucket 4, centrifugal sludge dewatering device 13 includes fixed motor 2, connecting axle 3, mud dehydration urceolus 16, centrifugal dehydration rotary drum 7, mud refines sieving mechanism 6 and mud collection fill 9, advance mud bucket 4 and install the top at mud dehydration urceolus 16, fixed motor 2 installs the top of advancing mud bucket 4, connecting axle 3 installs the output at fixed motor 2, mud refines sieving mechanism 6 and installs in centrifugal dehydration rotary drum 7, connecting axle 3 passes into mud bucket 4, stretch into centrifugal dehydration rotary drum 7, with mud refine sieving mechanism 6 and centrifugal dehydration rotary drum 7 bottom fixed connection, mud collection fill 9 installs the bottom at mud dehydration urceolus 16, drain pipe 12 and the lateral wall intercommunication of mud collection fill 9, be provided with grid 8 on the centrifugal dehydration rotary drum 7 lateral wall, mud discharge conveyer belt 11 is located the below of mud collection fill 9.
In a preferred embodiment, a circle of sewage collecting weir groove 10 is arranged at the upper end of the sludge collecting hopper 9, the sewage collecting weir groove 10 is positioned below the space between the sludge dewatering outer cylinder 16 and the centrifugal dewatering drum 7, the water discharging pipe 12 is communicated with the sewage collecting weir groove 10, the sewage collecting weir groove 10 is disconnected with the centrifugal dewatering drum 7, and a sufficient distance is reserved between the sewage collecting weir groove 10 and the centrifugal dewatering drum 7, so that the sewage collecting weir groove 10 cannot be touched in the rotating process of the drum.
In a preferred embodiment, the sludge refinement screening device 6 comprises a screening grid 15 and sludge refinement cutting points 14, the sludge refinement cutting points 14 are distributed on the screening grid 15, the screening grid 15 is fixedly connected with the connecting shaft 3, the large sludge input by the sludge feeding conveyor belt 1 can be subjected to high-speed cutting refinement, and the cut sludge enters the centrifugal dehydration rotary drum 7 through holes on the screening grid 15.
In a preferred embodiment, the centrifugal sludge dewatering device 13 further comprises an air purging device 5, the air purging device 5 is arranged on the sludge dewatering outer cylinder 16, a plurality of purging pipes 17 are arranged on the air purging device 5 from top to bottom, and the purging pipes 17 are aligned with the outer wall of the centrifugal dewatering drum 7. When the centrifugal dehydration rotary drum 7 rotates for a certain time, the intercepted or bonded sludge on the inner wall of the centrifugal dehydration rotary drum 7 affects continuous dehydration, at the moment, the sludge feeding conveyor belt 1 stops conveying the sludge to the sludge feeding hopper 4, the rotating speed of the centrifugal dehydration rotary drum 7 is slowed down, the blowing pipe 17 arranged from top to bottom blows off the sludge in the grid 8 on the whole conical surface along with the rotation of the centrifugal dehydration rotary drum 7, so that the blown-off sludge falls into the sludge collecting hopper 9 below, and the collected sludge is transported outwards through the sludge discharging conveyor belt 11. After that, the blowing pipe 17 stops blowing, the sludge feeding conveyor belt 1 continues to convey sludge to the sludge feeding hopper 4, and the centrifugal dewatering drum 7 returns to the normal rotation speed to continue sludge dewatering.
Example 1
The sludge enters the sludge inlet hopper 4 from the sludge inlet conveyor belt 1, enters the centrifugal dehydration rotary drum 7 after being cut by the sludge thinning cutting point 14, and is thrown into the inner side wall of the centrifugal dehydration rotary drum 7 under the centrifugal force generated by high-speed rotation; because of different specific gravities, solid-liquid separation is formed, under the high-speed rotation of the centrifugal dehydration rotary drum 7, sewage with smaller density is thrown out through the grid 8, and sludge with larger density is intercepted by the grid 8, and the dewatered sludge is simultaneously subjected to the centrifugal force in the horizontal direction and the gravity in the vertical direction, so that the sludge intercepted by the grid 8 falls into the sludge collection hopper 9 along the inclined side wall of the centrifugal dehydration rotary drum 7 and is discharged by the sludge discharge conveyor belt 11, and continuous dehydration of the centrifugal dehydration rotary drum 7 on the sludge is realized; after the centrifugal dehydration rotary drum 7 rotates for a certain time, the intercepted or bonded sludge on the inner wall of the centrifugal dehydration rotary drum 7 is influenced to continue to dehydrate, at the moment, the purging device 5 is opened, the air purging device 5 blows off the sludge on the inner wall of the centrifugal dehydration rotary drum 7 and then enters the sludge collection hopper 9, and then the sludge is continuously discharged by the sludge discharge conveyor belt 11, the air purging device 5 is intermittently started and can be manually controlled, and the air purging strength and frequency are controlled according to the sludge quantity and caking degree of the sludge on the centrifugal dehydration rotary drum 7, so that the energy consumption can be effectively saved, and the service life of equipment is prolonged; the sewage thrown out by the centrifugal dewatering drum 7 is thrown onto the inner wall of the sludge dewatering outer cylinder 16 through the grid 8 of the centrifugal dewatering drum 7, and then flows into the sewage collecting weir groove 10, is continuously discharged by the drain pipe 12 by gravity, so that the energy consumption is greatly saved, and in addition, the centrifugal dewatering drum 7 is arranged inside the sludge dewatering outer cylinder 16, so that the noise can be greatly reduced.
Example 2
Referring to fig. 4, when the sludge rotates with the spin basket 7, the sludge and the sewage are simultaneously subjected to centrifugal force in a horizontal direction and gravity in a vertical direction, and as the specific gravity of the sludge and the sewage are different, when the spin basket 7 rotates, the sewage with lower density and lower gravity is thrown out through the grid 8, and the sludge with higher density and higher gravity is intercepted by the grid 8, so that the sludge and the sewage form solid-liquid separation; the sewage passes through the grid 9 and is thrown onto the inner wall of the sludge dewatering outer cylinder 16, then flows into the sewage collecting weir groove 10, is continuously discharged by the drain pipe 12 by gravity, and the sludge intercepted by the grid 8 falls into the sludge collecting hopper 9 along the inclined side wall of the centrifugal dewatering drum 7.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. A centrifugal sludge dewatering device, comprising: advance mud conveyer belt, advance mud bucket, centrifugal sludge dewatering device, arrange mud conveyer belt and drain pipe, advance mud conveyer belt and be located advance the top of mud bucket, centrifugal sludge dewatering device includes fixed motor, connecting axle, mud dehydration urceolus, centrifugal dehydration rotary drum, mud refine sieving mechanism and mud collection fill, advance the mud bucket and install the top of mud dehydration urceolus, fixed motor installs advance the top of mud bucket, the connecting axle is installed fixed motor's output, mud refines the sieving mechanism and installs in the centrifugal dehydration rotary drum, the connecting axle passes advance the mud bucket, stretch into in the centrifugal dehydration rotary drum with mud refines sieving mechanism with centrifugal dehydration rotary drum bottom fixed connection, the mud collection fill is installed the bottom of mud dehydration urceolus, the drain pipe with the lateral wall intercommunication of mud collection fill, be provided with the net on the centrifugal dehydration rotary drum lateral wall, arrange the mud conveyer belt and be located the below of mud collection fill.
2. The centrifugal sludge dewatering device according to claim 1, wherein a sewage collecting weir groove is formed in the top end of the sludge collecting hopper, the sewage collecting weir groove is located below the space between the sludge dewatering outer cylinder and the centrifugal dewatering drum, and the drain pipe is communicated with the sewage collecting weir groove.
3. The centrifugal sludge dewatering device according to claim 1, wherein the sludge refining screening device comprises a screening grid and sludge refining cutting points, wherein a plurality of sludge refining cutting points are distributed on the screening grid, and the screening grid is fixedly connected with the connecting shaft.
4. The centrifugal sludge dewatering device according to claim 1, further comprising an air purge device mounted to the sludge dewatering outer cylinder, wherein an output end of the air purge device is directed at an outer wall of the centrifugal dewatering outer cylinder.
5. The centrifugal sludge dewatering device according to claim 4, wherein the air purge device is provided with a plurality of purge pipes from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322303065.0U CN220618730U (en) | 2023-08-25 | 2023-08-25 | Centrifugal sludge dewatering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322303065.0U CN220618730U (en) | 2023-08-25 | 2023-08-25 | Centrifugal sludge dewatering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220618730U true CN220618730U (en) | 2024-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322303065.0U Active CN220618730U (en) | 2023-08-25 | 2023-08-25 | Centrifugal sludge dewatering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220618730U (en) |
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2023
- 2023-08-25 CN CN202322303065.0U patent/CN220618730U/en active Active
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