CN204803204U - System for sludge drying handles - Google Patents
System for sludge drying handles Download PDFInfo
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- CN204803204U CN204803204U CN201520313228.6U CN201520313228U CN204803204U CN 204803204 U CN204803204 U CN 204803204U CN 201520313228 U CN201520313228 U CN 201520313228U CN 204803204 U CN204803204 U CN 204803204U
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- mud
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- vacuum drier
- sludge
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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- Drying Of Solid Materials (AREA)
- Treatment Of Sludge (AREA)
Abstract
The utility model provides a sludge drying processing system, the system includes: vapor compressor, heater, vacuum dryer, dust remover and purifier, vapor compressor and heater connection, last mud feed inlet, mud discharge port, steam inlet, steam outlet, comdenstion water discharge port and the noncondensable gas discharge port of being provided with of vacuum dryer, heater and vacuum dryer's steam inlet is connected, and the last steam outlet of vacuum dryer is connected with the dust remover, the dust remover is connected with vapor compressor, vacuum dryer's noncondensable gas discharge port and purifier are connected. Through the utility model discloses, make the moisture in the mud evaporate formation steam under the vacuum state, obtain dry mud simultaneously. Because the steam pressure boost intensification succeeding crop that the mud evaporation produced recycles for the heat source and the boiling point depression of water, can reduce sludge drying's energy consumption by a wide margin. The mode of low temperature evaporation simultaneously, foul smell production volume is less, and the foul smell of having avoided sludge treatment to produce causes environmental pollution.
Description
Technical field
The utility model relates to environmental technology field, particularly relates to a kind of drying sludge treatment system.
Background technology
Along with the development of wastewater treatment in China industry, the raising of sewage treatment capacity, causes the sharply increase of sludge yield, and relevant person estimates, if mud generation is with this speed increment, total amount will reach 3,560 ten thousand t in 2015.According to statistics, the mud of current national urban wastewater treatment firm only has small part to carry out burning, landfill and recycling, major part mud does not obtain standardization and disposes, these pile up the objectionable impurities such as microorganism, pathogenic agent contained in mud, constitute serious threat to surrounding enviroment, sludge disposal has become the another technical barrier that sewage disposal faces.
Sludge treating method mainly contains landfill, burning and biological compost etc.The later use of mud depends primarily on the height of water ratio, moisture percentage in sewage sludge is just applicable to burning lower than 50%, water ratio just can carry out compost lower than 60%, municipal sludge water ratio is higher, water ratio after mechanical dehydration is still more than 80%, therefore, sludge drying is the key point solving a sludge disposal difficult problem.
Sludge drying process mainly can be divided into heat drying, solar energy desiccation, biological dewatered and hydro-thermal mummification etc., heat drying is owned by France in traditional heat energy sludge drying method, be current most widely used general be also the most ripe drying technique, mud common heat drying technique has direct mummification (fluidized-bed mummification, rotary drum mummification etc.), indirectly drying (thin layer mummification, paddle mummification etc.), radiation mummification (belt-type drying, spiral mummification etc.), and its equipment manufacturers are mainly in developed countries such as the U.S., France, Germany, Belgium, Italy.
The mud drying device entering Chinese market generally adopts heat drying technology, and the energy consumption of operation is very high, and cause very large burden to enterprise, too high energy consumption does not meet the requirement of China's energy-saving and emission-reduction yet.And in order to improve sludge water content evaporation capacity during drying sludge, its service temperature is higher, drying is not only dehydration to the process of mud, and also have heat treated effect, the foul smell that mud produces in heat treatment process can have a strong impact on environment.Further, even if in hot conditions, also there are fraction of pathogens bacterium, parasite survival, and pollute surrounding enviroment along with mud discharging.In addition, the mud temperature after drying treatment is very high, then carry out transporting, the subsequent disposal such as soil improvement time very inconvenient.
In the face of the demand in domestic sludge treatment market, the drying sludge mechanism that process and safety are convenient in exploitation less energy-consumption less contamination is very urgent.
Utility model content
In view of the above problems, the utility model is proposed to provide a kind of drying sludge treatment system overcoming the problems referred to above or solve the problem at least in part.
In order to solve the problem, the utility model provides a kind of drying sludge treatment system, comprising:
Vapour compressor, well heater, vacuum drier, fly-ash separator and refining plant;
Described vapour compressor is connected with described well heater;
Described vacuum drier is provided with sludge inlet, sludge outlet, steam-in, vapour outlet, condensed water discharge outlet and non-condensable gas discharge outlet;
Described well heater is connected with the described steam-in of described vacuum drier, and the described vapour outlet on described vacuum drier is connected with described fly-ash separator;
Described fly-ash separator is connected with described vapour compressor;
The non-condensable gas discharge outlet of described vacuum drier is connected with described refining plant.
Alternatively, described well heater is electric heater or steam heater.
Alternatively, described vapour compressor is frequency conversion type vapour compressor.
Alternatively, the condensed water discharge outlet of described vacuum drier is connected with sewage disposal device.
According to the drying sludge treatment system of this utility model, comprise vapour compressor, well heater, vacuum drier, fly-ash separator and refining plant, described vacuum drier is provided with sludge inlet, sludge outlet, steam-in, vapour outlet, condensed water discharge outlet and non-condensable gas discharge outlet.
Be connected with the described steam-in of described vacuum drier by described well heater, described vapour outlet on described vacuum drier is connected with described fly-ash separator, described fly-ash separator is connected with described vapour compressor, described vapour compressor can be made to be vacuumized by described vacuum drier, the sludge inlet of the described vacuum drier by pending mud positive delivery extremely using steam as thermal source, the heat of described vapor condensation is passed to described mud by indirect heat exchange by described vacuum drier, can make moisture in mud pressure lower than a normal atmosphere and vaporization temperature lower than the vacuum state of 100 DEG C under evaporation form steam, obtain dry mud simultaneously, because the moisture in mud evaporates under vacuum conditions, the boiling point lowering of water, reduce moisture evaporation institute heat requirement, thus reduce the energy consumption of drying sludge.
And, by above-mentioned annexation, the steam that mud evaporation produces by the vapour outlet of described vacuum drier successively after vapour compressor pressurization intensification and heater heats process, enter the steam-in of described vacuum drier, make mud evaporate the steam produced to use as heat-source Cycles, significantly can reduce the energy consumption of drying sludge.
Discharged by the mud of described drying by the sludge outlet that described vacuum drier is arranged, because vaporization temperature is less than 100 DEG C, mud outflow temperature is low, and the less calories taken away when mud is discharged, reduce further the energy consumption of drying sludge.
Because the mode of low-temperature evaporation is overflowed without sludge odor, relative to traditional high-temperature hot drying technique, foul smell generation is less, and the foul smell avoiding sludge treatment generation causes environmental pollution.
Because drying sludge process is carried out under vacuum conditions, the pathogenic bacteria in mud, parasitic ovum deactivation, further avoid the mud after process and cause environmental pollution.
Owing to reducing temperature when mud is discharged, the organic composition of mud can not be destroyed, be convenient to the mud subsequent disposal such as soil improvement.
Be connected with described fly-ash separator by the described vapour outlet on described vacuum drier, described fly-ash separator is connected with described vapour compressor, the steam that the moisture of mud can be made to be formed when drying is by fly-ash separator dedusting, eliminate the dust impurities in recycle gas, wear and tear when reducing drying sludge hidden danger and dust explosion risk.
Be connected with described refining plant by the non-condensable gas discharge outlet of described vacuum drier, the noncondensable gas formed after making the described steam heating mud as thermal source through described refining plant process to reaching atmospheric emission standard, thus decrease drying sludge process produce waste gas to the secondary pollution of environment.
Described well heater can also be set to electric heater or steam heater, for the heat lost in supplementary drying sludge treatment system operational process.
Described vapour compressor can also be set to frequency conversion type vapour compressor, makes accurately to control vaporization temperature, avoid too low the causing of vaporization temperature and evaporate slowly, or vaporization temperature is too high causes energy wastage, reduces the energy consumption of drying sludge further.
The condensed water discharge outlet of described vacuum drier can also by being connected with sewage disposal device, and process is to reaching emission standard or reuse standard, and the sewage produced when decreasing drying sludge process is to the secondary pollution of environment.
Accompanying drawing explanation
Fig. 1 is the structural representation of the system of a kind of drying sludge process of the utility model embodiment one.
Embodiment
For enabling above-mentioned purpose of the present utility model, feature and advantage become apparent more, are described in further detail the utility model below in conjunction with the drawings and specific embodiments.
In description of the present utility model, except as otherwise noted, the implication of " multiple " is two or more; Term " on ", D score, "left", "right", " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of the machine of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary.For the ordinary skill in the art, particular case the concrete meaning of above-mentioned term in the utility model can be understood.
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples for illustration of the utility model, but are not used for limiting scope of the present utility model.
With reference to Fig. 1, show the structural representation of a kind of drying sludge treatment system in the utility model embodiment.
This drying sludge treatment system comprises: vapour compressor 2, well heater 4, vacuum drier 1, fly-ash separator 3 and refining plant 5; Annexation is: described vapour compressor 2 is connected with described well heater 4; Described vacuum drier 1 is provided with sludge inlet 11, sludge outlet 12, steam-in 13, vapour outlet 14, condensed water discharge outlet 15 and non-condensable gas discharge outlet 16; Described well heater 4 is connected with the steam-in 13 of described vacuum drier 1, and the vapour outlet 14 on described vacuum drier 1 is connected with described fly-ash separator 3; Described fly-ash separator 3 is connected with described vapour compressor 2; The non-condensable gas discharge outlet 16 of described vacuum drier 1 is connected with described refining plant 5.
The principle of design of drying sludge treatment system of the present utility model is, by the described steam-in 13 of described well heater 4 with described vacuum drier 1 is connected, described vapour outlet 14 on described vacuum drier 1 is connected with described fly-ash separator 3, described fly-ash separator 3 is connected with described vapour compressor 2, described vacuum drier 1 vacuumizes by described vapour compressor 2, the sludge inlet 11 of the described vacuum drier 1 by pending mud positive delivery extremely using steam as thermal source, the heat of described vapor condensation is passed to described mud by indirect heat exchange by described vacuum drier 1, can make moisture in mud pressure lower than a normal atmosphere and vaporization temperature lower than the vacuum state of 100 DEG C under evaporation form steam, obtain dry mud simultaneously, because the moisture in mud evaporates under vacuum conditions, the boiling point lowering of water, reduce moisture evaporation institute heat requirement, thus reduce the energy consumption of drying sludge.
Water is at the boiling point of vacuum negative pressure condition lower than the boiling point under normal temperature and pressure 100 DEG C, and such as, under the air pressure of 19.6kPa, the boiling point of water can drop to 60 DEG C; Therefore, control lower vaporization temperature and the moisture of mud just can be made to reach boiling state and evaporate, thus reduce the heat needed for the evaporation of the moisture of mud.
And, by above-mentioned annexation, the steam that mud evaporation produces by the vapour outlet 14 of described vacuum drier 1 successively after vapour compressor 2 pressurizes intensification and well heater 4 heat treated, enter the steam-in 13 of described vacuum drier 1, make mud evaporate the steam produced and use as heat-source Cycles, steam heat reuses, improve thermo-efficiency, reduce energy consumption, the energy consumption of saving 60% compared with the heat drying technology of routine, significantly can reduce the energy consumption of drying sludge.
Discharged by the mud of described drying by the sludge outlet 12 that described vacuum drier 1 is arranged, because vaporization temperature is less than 100 DEG C, mud outflow temperature is low, and the less calories taken away when mud is discharged, reduce further the energy consumption of drying sludge.
Because the mode of low-temperature evaporation is overflowed without sludge odor, relative to traditional high-temperature hot drying technique, foul smell generation is less, and the foul smell avoiding sludge treatment generation causes environmental pollution;
Because drying sludge process is carried out under vacuum conditions, the pathogenic bacteria in mud, parasitic ovum deactivation, further avoid the mud after process and cause environmental pollution.
Owing to reducing temperature when mud is discharged, the organic composition of mud can not be destroyed, be convenient to the mud subsequent disposal such as soil improvement.
Be connected with described fly-ash separator 3 by the described vapour outlet 14 on described vacuum drier 1, described fly-ash separator 3 is connected with described vapour compressor 2, the steam that the moisture of mud can be made to be formed when drying carries out dust removal process, eliminate the dust impurities in recycle gas, reduce wearing and tearing hidden danger and the dust explosion risk of vapour compressor.
By the non-condensable gas discharge outlet 16 of described vacuum drier 1 is connected with described refining plant 5, the noncondensable gas formed after making the described steam heating mud as thermal source enters described refining plant 5 through the non-condensable gas discharge outlet 16 of described vacuum drier 1 and processes to reaching atmospheric emission standard, thus decreases waste gas that drying sludge process produces to the secondary pollution of environment.
In the utility model embodiment, alternatively, described well heater 4 can be set to electric heater or steam heater, for the heat lost in supplementary drying sludge treatment system operational process.
In the utility model embodiment, alternatively, described vapour compressor 2 can be set to frequency conversion type vapour compressor, accurately can control vaporization temperature, avoid too low the causing of vaporization temperature to evaporate slowly, or vaporization temperature is too high causes energy wastage, reduces the energy consumption of drying sludge further.
In the utility model embodiment, alternatively, be connected with sewage disposal device by the condensed water discharge outlet 15 arranging described vacuum drier 1, the water of condensation formed after making the steam heating mud as thermal source enters described sewage disposal device, process is to reaching emission standard or reuse standard, and the sewage produced when decreasing drying sludge process is to the secondary pollution of environment.
Above a kind of drying sludge treatment system provided by the utility model is described in detail, apply specific case herein to set forth principle of the present utility model and embodiment, the explanation of above embodiment just understands method of the present utility model and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (4)
1. a drying sludge treatment system, is characterized in that, comprising:
Vapour compressor, well heater, vacuum drier, fly-ash separator and refining plant;
Described vapour compressor is connected with described well heater;
Described vacuum drier is provided with sludge inlet, sludge outlet, steam-in, vapour outlet, condensed water discharge outlet and non-condensable gas discharge outlet;
Described well heater is connected with the described steam-in of described vacuum drier, and the described vapour outlet on described vacuum drier is connected with described fly-ash separator;
Described fly-ash separator is connected with described vapour compressor;
The non-condensable gas discharge outlet of described vacuum drier is connected with described refining plant.
2. system according to claim 1, is characterized in that:
Described well heater is electric heater or steam heater.
3. system according to claim 1, is characterized in that:
Described vapour compressor is frequency conversion type vapour compressor.
4. system according to claim 1, is characterized in that:
The condensed water discharge outlet of described vacuum drier is connected with sewage disposal device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520313228.6U CN204803204U (en) | 2015-05-14 | 2015-05-14 | System for sludge drying handles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520313228.6U CN204803204U (en) | 2015-05-14 | 2015-05-14 | System for sludge drying handles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204803204U true CN204803204U (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520313228.6U Active CN204803204U (en) | 2015-05-14 | 2015-05-14 | System for sludge drying handles |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105486065A (en) * | 2016-01-20 | 2016-04-13 | 辛后安 | Heat balance type dryer |
| CN107056005A (en) * | 2016-12-30 | 2017-08-18 | 武汉芳笛环保股份有限公司 | A kind of efficient low-consume mud drying device |
| CN107804955A (en) * | 2017-11-15 | 2018-03-16 | 苏州欧拉透平机械有限公司 | Energy-saving sludge drying process system |
| CN113683289A (en) * | 2021-09-15 | 2021-11-23 | 东华大学 | Low-energy-consumption thermal drying method for sludge |
-
2015
- 2015-05-14 CN CN201520313228.6U patent/CN204803204U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105486065A (en) * | 2016-01-20 | 2016-04-13 | 辛后安 | Heat balance type dryer |
| CN107056005A (en) * | 2016-12-30 | 2017-08-18 | 武汉芳笛环保股份有限公司 | A kind of efficient low-consume mud drying device |
| CN107804955A (en) * | 2017-11-15 | 2018-03-16 | 苏州欧拉透平机械有限公司 | Energy-saving sludge drying process system |
| CN113683289A (en) * | 2021-09-15 | 2021-11-23 | 东华大学 | Low-energy-consumption thermal drying method for sludge |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 510180 Guangdong city of Guangzhou Province Pan Fu Lu Yi Guo Backstreet 24 No. 602 Patentee after: He Weicai Patentee after: Beijing Zhongke national environmental protection engineering technology Limited by Share Ltd Address before: 510180 Guangdong city of Guangzhou Province Pan Fu Lu Yi Guo Backstreet 24 No. 602 Patentee before: He Weicai Patentee before: GENERAL TREATMENT ENVIRONMENT (BEIJING) LTD. |