CN212152053U - Sludge electroosmosis deep dehydration coupling dehumidification drying device - Google Patents
Sludge electroosmosis deep dehydration coupling dehumidification drying device Download PDFInfo
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- CN212152053U CN212152053U CN202020773390.7U CN202020773390U CN212152053U CN 212152053 U CN212152053 U CN 212152053U CN 202020773390 U CN202020773390 U CN 202020773390U CN 212152053 U CN212152053 U CN 212152053U
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- dehumidification
- dehydration
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- 239000010802 sludge Substances 0.000 title claims abstract description 76
- 230000018044 dehydration Effects 0.000 title claims abstract description 68
- 238000006297 dehydration reaction Methods 0.000 title claims abstract description 68
- 238000005370 electroosmosis Methods 0.000 title claims abstract description 44
- 238000007791 dehumidification Methods 0.000 title claims abstract description 43
- 238000001035 drying Methods 0.000 title claims abstract description 38
- 230000008878 coupling Effects 0.000 title claims abstract description 12
- 238000010168 coupling process Methods 0.000 title claims abstract description 12
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 238000009833 condensation Methods 0.000 claims description 11
- 230000005494 condensation Effects 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 2
- 208000005156 Dehydration Diseases 0.000 description 60
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 36
- 238000005265 energy consumption Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 238000003763 carbonization Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000197 pyrolysis Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 238000009264 composting Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000009828 non-uniform distribution Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000010200 validation analysis Methods 0.000 description 1
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Abstract
The utility model relates to a mud electroosmosis degree of depth dehydration coupling dehumidification mummification device, include: the sludge lifter, the distributor, at least two groups of electroosmosis dehydration module systems and the dehumidification drying system are connected in sequence; the dehumidification drying system comprises a conveying module and a dehumidification heating module, wherein the dehumidification heating module comprises an air inlet and an air outlet; the outer part of the conveying module is covered with a sealing cover, the upper part of the sealing cover is provided with a plurality of air exhaust holes, and the air exhaust holes are connected through pipelines and connected with the air inlet; a hot air pipe is arranged below the conveying module and is connected with the air outlet through a pipeline; and the pipeline is provided with a fan for realizing the circulation of wind power. Has the advantages that: the utility model has the advantages of reasonable design, through multistage electroosmosis and dehumidification mummification, can realize that moisture content 80% mud once only dewaters to below 40%, have energy-conserving, high-efficient, the big characteristics of handling capacity.
Description
Technical Field
The utility model belongs to the technical field of the sludge dewatering technique and specifically relates to a sludge electroosmosis deep dehydration coupling dehumidification mummification device is related to.
Background
With the high-speed development of national economy, the water content of sludge of most sewage plants in China is about 80%, the total amount is 6000-9000 ten thousand tons every year, and the amount of the sludge which cannot be counted is also an astonishing number. The components of the sludge are complex, and the treatment and disposal difficulty is high. Mainly adopts the disposal routes of landfill, composting, pyrolysis carbonization and drying incineration. The water content of the sludge is required to be below 60 percent for landfill, the influence of shortage of land resources in economically developed areas is greatly limited, and the application field of the compost influenced by the heavy metal contained in the sludge is limited. Pyrolysis carbonization and drying incineration require that the water content of the sludge is about 40 percent, the water content is mainly achieved through heat drying, the operation energy consumption is large, and the cost is high. Therefore, the sludge reduction needs new technical equipment to be pushed out to break through the bottleneck of the current sludge treatment and disposal.
The sludge is subjected to electroosmotic dehydration, and the water (without phase change) in the sludge is discharged in a low-temperature liquid state. The water content of the sludge is 80 percent, the electroosmosis dehydration is reduced to 60 percent, the average power consumption of each ton of sludge is 60 ℃, the water removal amount is 500 kilograms, and the electric dehydration amount at 1 degree is 8.33 kilograms; dehydration time of the batches was 10 minutes. On the basis, if the sludge is further dehydrated, the energy consumption is greatly increased, and the main reason is that a drying layer is formed on the surface of the sludge and is converted into a heating resistor, most of electric energy is converted into heat energy, and electroosmosis dehydration is converted into electric heating drying. The specific verification data is as follows: electroosmosis dehydration is carried out on the sludge with the water content of 60 percent until the water content reaches 40 percent, the power consumption per ton of sludge is 100 ℃, and the dehydration amount is 167 kilograms; the electro-dewatering amount at 1 degree is 1.67 kg. Dehydration time of 8 minutes in batches; comprehensive statistics shows that if electroosmosis dehydration is singly adopted, the water content of the sludge is 80% -40%, the average power consumption of 1 ton of sludge is 160 ℃, the water removal amount is 667 kilograms, and the electric dehydration amount at 1 degree is 4.17 kilograms; dehydration time of the batches was 20 minutes.
From the data, the water content of the dehydration section with the optimal energy efficiency of electroosmosis is 80% -60%.
Therefore, it is necessary to develop a sludge treatment apparatus which can realize high drying (water content less than 50%) treatment of sludge and has low energy consumption.
SUMMERY OF THE UTILITY MODEL
The utility model provides a sludge electroosmosis deep dehydration coupling dehumidification mummification device to solve the high problem of mummification processing procedure energy consumption height in the prior art.
The utility model provides a technical problem adopt following technical scheme to realize:
the utility model provides a sludge electroosmosis deep dehydration coupling dehumidification mummification device, includes: the sludge lifter, the distributor, at least two groups of electroosmosis dehydration module systems and the dehumidification drying system are connected in sequence;
the dehumidification drying system comprises a conveying module and a dehumidification heating module, wherein the dehumidification heating module comprises an air inlet and an air outlet; the outer part of the conveying module is covered with a sealing cover, the upper part of the sealing cover is provided with a plurality of air exhaust holes, and the air exhaust holes are connected through pipelines and connected with the air inlet; a hot air pipe is arranged below the conveying module and is connected with the air outlet through a pipeline; the pipeline is provided with a fan for realizing the circulation of wind power;
the dehumidification heating module is internally provided with a condensation module and a heating module, the condensation module is used for condensing moisture in air entering from the air inlet, and the heating module is used for heating the air.
As a preferred technical scheme, the hot air pipe is provided with a plurality of hot air outlets, and the hot air outlets are positioned under the conveying module.
As a preferable technical solution, the hot air outlets are distributed on the hot air pipe unevenly, and the density of the hot air outlets is gradually reduced along the running direction of the conveying module
As preferred technical scheme, electroosmosis dehydration module system is two sets of, and is adjacent two sets of be equipped with mud turning device between the electroosmosis dehydration module system for realize the upset of mud, in order to improve the electroosmosis effect, mud turning device includes scraper and slide, the scraper is located the place ahead electroosmosis dehydration module system's discharge gate, and with certain contained angle alpha is become to the filter belt of discharge gate department, contained angle alpha preferred is 45, the slide is located the below of scraper, and with the scraper becomes certain contained angle beta, contained angle beta is preferred 45.
As a preferred technical scheme, a filter screen is arranged in the cache cloth device and used for filtering hard objects or metal blocks.
As an optimal technical scheme, the sealing cover is provided with the heat preservation layer, so that heat loss is reduced, the temperature in the sealing cover is higher, the drying efficiency is improved, and the energy consumption is reduced.
Has the advantages that:
the utility model has the advantages of reasonable design, through multistage electroosmosis and dehumidification mummification, can realize that moisture content 80% mud once only dewaters to below 40%, compare and adopt electroosmosis or dehumidification mummification technique alone, ton mud dehydration mummification energy consumption reduces 50%, and equal energy consumption sludge treatment increases more than the one time, has energy-conserving, high-efficient, the big characteristics of handling capacity.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 shows the utility model: a schematic structure diagram of a sludge electroosmosis deep dehydration coupling dehumidification drying device;
fig. 2 shows the utility model: a structural schematic diagram of a hot air pipe of a sludge electroosmosis deep dehydration coupling dehumidification drying device;
wherein:
1-sludge lifter
2-distributing device
3-electroosmotic dehydration module system
4-dehumidification drying system
201-Filter Screen
301-sludge turnover device
3011 scraper
3012 skateboard
41-transport module
42-dehumidification heating module
43-sealing cover
44-air exhaust hole
45-hot air pipe
46-blower
421-air inlet
422-air outlet
423-condensation module
424-heating module
431-insulating layer
451-Hot air Outlet
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with the specific drawings.
Example 1
Referring to fig. 1-2, an electro-osmosis deep dehydration coupled dehumidification drying device for sludge comprises: the device comprises a sludge lifter 1, a distributor 2, at least two groups of electroosmosis dehydration module systems 3 and a dehumidification drying system 4 which are connected in sequence.
The dehumidification drying system 4 of the utility model comprises a conveying module 41 and a dehumidification heating module 42, wherein the dehumidification heating module 42 comprises an air inlet 421 and an air outlet 422; a sealing cover 43 is covered outside the conveying module 41, a plurality of exhaust holes 44 are arranged at the upper part of the sealing cover 43, and the exhaust holes 44 are connected with an air inlet 421 through pipelines; a hot air pipe 45 is arranged below the conveying module 41, and the hot air pipe 45 is connected with the air outlet 422 through a pipeline; a fan 46 is arranged on the pipeline to realize the circulation of wind power;
the utility model discloses a dehumidification heats and is equipped with condensation module 423 in the module 42 and heats module 424, and condensation module 423 is used for the moisture in the air that condensation air intake 421 got into, heats module 424 and is used for heating air.
Because the dehumidifying and drying system 4 has a circulating structure of air, the hot air generated by the heating module 424 is blown out through the hot air outlet 451 of the hot air pipe 45 via the pipeline, the hot air continuously heats and dries the sludge on the conveying module 41, the moisture in the sludge is evaporated and discharged from the air outlet 44, and enters the dehumidifying and heating module 42 via the pipeline, the moisture in the air is condensed by the condensing module 423, and the air after condensation is heated by the heating module 424 and then continuously circulates.
In order to achieve better drying effect, the hot air duct 45 is provided with a plurality of hot air outlets 451, the hot air outlets 451 are located right below the conveying module 41, the hot air outlets 451 are unevenly distributed on the hot air duct 45, and the density of the hot air outlets 451 is gradually reduced along the running direction of the conveying module 41. Because the conveying module 41 runs slowly, the sludge water content distributed in front of the conveying module 41 is high, and the sludge water content distributed behind the conveying module 41 is high, the hot air outlets 451 adopt a non-uniform distribution mode, so that the energy consumption can be effectively reduced, and meanwhile, the drying effect is good.
In order to further reduce energy consumption, the sealing cover 43 is provided with the heat-insulating layer 431, so that heat loss is reduced, the temperature in the sealing cover 43 is higher, drying efficiency is improved, and energy consumption is reduced.
The electroosmotic dehydration module systems 3 of the utility model are two groups, the running directions of each group of electroosmotic dehydration module systems 3 are the same, a certain step difference is formed between two adjacent groups of electroosmotic dehydration module systems 3, the height of the former group of electroosmotic dehydration module systems 3 is higher than that of the latter group of electroosmotic dehydration module systems 3, and the material receiving section of the latter group of electroosmotic dehydration module systems 3 is positioned below the material discharging section of the former group of electroosmotic dehydration module systems 3; be equipped with mud turning device 301 between two sets of adjacent electroosmosis dehydration module system 3, be used for realizing the upset of mud, in order to improve the electroosmosis effect, mud turning device 301 includes scraper 3011, and slide 3012, the discharge gate of electroosmosis dehydration module system 3 that scraper 3011 is located the place ahead, and become certain contained angle alpha with the filter belt of discharge gate department, contained angle alpha is preferred 45, slide 3012 is located the below of scraper 3011, and become certain contained angle beta with scraper 3011, contained angle beta is preferred 45.
In order to prevent hard or metal impurities from entering the electroosmosis dehydration module system 3, the filter screen 201 is arranged in the distributor 2, so that an electroosmosis anode plate is effectively protected, the fault shutdown caused by short circuit is prevented, and the service life of the equipment is prolonged.
The concrete working mode, the mud of moisture content more than 80% passes through in mud lifting mechanism 1 gets into distributing device 2, because be equipped with filter screen 201 in the distributing device 2, can stop stereoplasm or metal debris to get into electroosmosis dehydration module system 3. Under the action of the distributor 2, the sludge uniformly enters the electroosmosis dehydration module system 3, the water content of the sludge is reduced to about 60% through at least two stages of electroosmosis dehydration, the sludge cake at the moment has a residual temperature of about 40 ℃ after electroosmosis dehydration, PAM (flocculating agent added in primary dehydration of sludge in a sewage treatment plant) in raw sludge is decomposed, the sludge enters the dehumidification drying system 4, under the action of hot air dehumidification drying, the water in the sludge cake is rapidly evaporated and vaporized to become hot and humid air, and finally the water content of the sludge is reduced to 40%.
And specific energy consumption comparison:
only low-temperature dehumidification drying is adopted, and a dehumidification heat pump is used for condensing, dehumidifying and drying the sludge by adopting hot air circulation; the hot air circulation changes the moisture in the sludge into moist heat (liquid water phase is changed into vapor water), the vapor water in the moist heat air is changed into liquid water through condensation and is discharged, and the condensed dry air is changed into circulating hot air to evaporate the moisture in the sludge through recovering latent heat of condensation and heating. The water content of the sludge is 80 percent, the heat pump dehumidification drying is reduced to 40 percent, the average power consumption of each ton of sludge is 180 degrees, the water removal amount is 667 kilograms, and the electric dehydration amount at 1 degree is 3.7 kilograms; dehydration time 120 minutes; the whole dehumidification and desiccation process is observed, and the dehydration curve is basically smooth. Therefore, the calculation shows that the water content of the sludge is dried from 60 percent to 40 percent, the dewatering amount is 167/667-25 percent, and the dewatering time is 120 multiplied by 25 percent-30 minutes; the power consumption is 180 × 25% ═ 45 degrees.
Only the sludge is used for electroosmotic dehydration, and the water (without phase change) in the sludge is discharged in a low-temperature liquid state. The water content of the sludge is 80 percent, the electroosmosis dehydration is reduced to 60 percent, the average power consumption of each ton of sludge is 60 ℃, the water removal amount is 500 kilograms, and the electric dehydration amount at 1 degree is 8.33 kilograms; dehydration time of the batches was 10 minutes. On the basis, if the sludge is further dehydrated, the energy consumption is greatly increased, and the main reason is that a drying layer is formed on the surface of the sludge and is converted into a heating resistor, most of electric energy is converted into heat energy, and electroosmosis dehydration is converted into electric heating drying. The specific verification data is as follows: electroosmosis dehydration is carried out on the sludge with the water content of 60 percent until the water content reaches 40 percent, the power consumption per ton of sludge is 100 ℃, and the dehydration amount is 167 kilograms; the electro-dewatering amount at 1 degree is 1.67 kg. Dehydration time of 8 minutes in batches; comprehensive statistics shows that if electroosmosis dehydration is singly adopted, the water content of the sludge is 80% -40%, the average power consumption of 1 ton of sludge is 160 ℃, the water removal amount is 667 kilograms, and the electric dehydration amount at 1 degree is 4.17 kilograms; dehydration time of the batches was 20 minutes.
By utilizing the device, the sludge with the water content of 80 percent is deeply dehydrated to 60 percent by utilizing the electroosmosis optimal energy efficiency dehydration section. Then the sludge is subjected to dehumidification and drying to reduce the water content of the sludge from 60% to about 40%. Statistics of a large number of industrial validation data: the water content of the sludge is 80 percent, the sludge is dehydrated to 40 percent, the average power consumption of each ton of sludge is 92 degrees, the water removal amount is 667 kilograms, and the electric dehydration amount at 1 degree is 7.25 kilograms; the dehydration time of the sequential batches is 11 minutes (in the industrial operation of equipment, the electroosmosis dehydration and the dehumidification drying of the same batch are carried out synchronously).
The data show that the device has obvious advantages of electroosmosis deep dehydration coupling dehumidification and drying, and has the technical characteristics of energy conservation, high efficiency and large treatment capacity.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a sludge electroosmosis deep dehydration coupling dehumidification mummification device which characterized in that includes: the sludge lifter, the distributor, at least two groups of electroosmosis dehydration module systems and the dehumidification drying system are connected in sequence;
the dehumidification drying system comprises a conveying module and a dehumidification heating module, wherein the dehumidification heating module comprises an air inlet and an air outlet; the outer part of the conveying module is covered with a sealing cover, the upper part of the sealing cover is provided with a plurality of air exhaust holes, and the air exhaust holes are connected through pipelines and connected with the air inlet; a hot air pipe is arranged below the conveying module and is connected with the air outlet through a pipeline; the pipeline is provided with a fan for realizing the circulation of wind power;
the dehumidification heating module is internally provided with a condensation module and a heating module, the condensation module is used for condensing moisture in air entering from the air inlet, and the heating module is used for heating the air.
2. The device of claim 1, wherein the hot air pipe is provided with a plurality of hot air outlets, and the hot air outlets are located right below the conveying module.
3. The device of claim 2, wherein the hot air outlets are distributed on the hot air pipe unevenly, and the density of the hot air outlets is gradually reduced along the running direction of the conveying module.
4. The device of claim 1, wherein the electro-osmotic dehydration module systems are two groups, a sludge turning device is disposed between two adjacent groups of the electro-osmotic dehydration module systems, the sludge turning device includes a scraper and a sliding plate, the scraper is disposed at the front of the discharge port of the electro-osmotic dehydration module system and forms a certain included angle α with the filter belt at the discharge port, and the sliding plate is disposed below the scraper and forms a certain included angle β with the scraper.
5. The electro-osmotic deep dewatering coupling dehumidifying and drying device for sludge as claimed in claim 4, wherein the included angle α is 45 °, and the included angle β is 45 °.
6. The electro-osmosis deep dewatering coupled dehumidifying and drying device for sludge as claimed in claim 1, wherein a filter screen for filtering hard substances or metal blocks is arranged in the distributor.
7. The electro-osmosis deep dewatering coupling dehumidifying and drying device for sludge as claimed in claim 1, wherein an insulating layer is arranged on the sealing cover.
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|---|---|---|---|
| CN202020773390.7U CN212152053U (en) | 2020-05-12 | 2020-05-12 | Sludge electroosmosis deep dehydration coupling dehumidification drying device |
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| CN202020773390.7U CN212152053U (en) | 2020-05-12 | 2020-05-12 | Sludge electroosmosis deep dehydration coupling dehumidification drying device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112811788A (en) * | 2021-02-02 | 2021-05-18 | 国投信开水环境投资有限公司 | Electroosmosis and low-temperature drying combined sludge dewatering system |
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2020
- 2020-05-12 CN CN202020773390.7U patent/CN212152053U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112811788A (en) * | 2021-02-02 | 2021-05-18 | 国投信开水环境投资有限公司 | Electroosmosis and low-temperature drying combined sludge dewatering system |
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