CN211734214U - Sludge drying machine energy saving and consumption reduction and waste gas zero discharge system based on zero discharge framework - Google Patents
Sludge drying machine energy saving and consumption reduction and waste gas zero discharge system based on zero discharge framework Download PDFInfo
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- CN211734214U CN211734214U CN202020246276.9U CN202020246276U CN211734214U CN 211734214 U CN211734214 U CN 211734214U CN 202020246276 U CN202020246276 U CN 202020246276U CN 211734214 U CN211734214 U CN 211734214U
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
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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
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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Abstract
The embodiment of the utility model discloses sludge drying machine energy saving and consumption reduction and waste gas zero release system based on zero release framework, this system includes: sludge drying machine, spiral discharge machine, dust remover, regenerator, circulating fan, heat exchanger, cooling tower and deodorization system, sludge drying machine is used for right sludge carries out the mummification and handles the mixture that obtains vapor and air, the dust remover is used for right the mixture of vapor and air removes dust, the regenerator is used for right the gas that the dust remover produced is cooled down, heat exchanger is used for carrying out the heat exchange to the cold water that the cooling tower provided and the gas after the regenerator cooling, deodorization system is used for right the waste gas that heat exchanger produced carries out the deodorization and handles the back, through the regenerator is sent into circulating fan, circulating fan is used for sending into the gas after handling sludge drying machine. The scheme realizes zero emission of waste gas treatment, saves the operating cost to the maximum extent by recovering heat energy, greatly reduces the treatment scale, has high cost performance and good economic benefit compared with the traditional sludge drying and deodorizing process.
Description
Technical Field
The embodiment of the application relates to the technical field of environmental protection, in particular to a sludge drying machine energy saving and consumption reduction and waste gas zero emission system based on a zero emission framework.
Background
Along with the acceleration of the urbanization process of China, the living standard of people is continuously improved, the environmental awareness of people is continuously enhanced, the requirements on the ecological environment are higher and higher, the pressure of traditional industrial environment protection upgrading is higher and higher, and the social responsibility of enterprises is stronger and higher.
The existing waste gas treatment mode of the sludge drying machine mainly comprises the following steps: the sludge enters the drier through the sludge delivery pump, heat is obtained through the disc scraper heated by the steam, and moisture in the sludge is heated and gasified to form steam which is discharged from a steam outlet of the drier. The steam becomes condensed water after releasing heat and is discharged from the drier. The water in the sludge is vaporized into a mixture of water vapor and air, and the mixture is dedusted, washed and cooled, enters a deodorizing device, is subjected to removal of malodorous components in the gas, and is discharged after reaching the standard. Because a small part of sludge is coked after being heated, scorched odor with a low threshold value is generated, the requirement on a deodorization system is extremely high, and the sludge can be biodegraded by oxygen oxidation, the treatment effect of the conventional deodorization equipment cannot be satisfactory, and people disturbing events occur occasionally, so that the pollution potential safety hazard is relatively large.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a sludge drying machine energy saving and consumption reduction and waste gas zero release system based on zero release framework has realized the exhaust-gas treatment zero release, and through retrieving heat energy, furthest practices thrift the working costs, compares with traditional sludge drying deodorization technology, and the processing scale reduces by a wide margin, and the sexual valence relative altitude has good economic benefits.
The embodiment of the utility model provides a sludge drying machine energy saving and consumption reduction and waste gas zero release system based on zero release framework, the system includes: sludge drying machine, spiral discharge machine, dust remover, regenerator, circulating fan, heat exchanger, cooling tower and deodorizing system, sludge drying machine receives the mud that sludge delivery pump sent, it is right sludge carries out the mummification and handles the mixture that obtains vapor and air, the dust remover with sludge drying machine links to each other, is used for right the mixture of vapor and air removes dust, the regenerator with the dust remover links to each other, is used for to passing through high-temperature gas behind the dust remover cools down, heat exchanger respectively with the regenerator and the cooling tower links to each other for cold water that the cooling tower provided and the gas after the regenerator cooling carry out the heat exchange, deodorizing system respectively with heat exchanger and the regenerator links to each other, be used for to passing through waste gas behind the heat exchanger carries out the deodorization and handles the back, through the regenerator sends into circulating fan, and the circulating fan is respectively connected with the heat regenerator and the sludge drier and is used for feeding the purified gas into the sludge drier.
Optionally, circulating fan still with the spiral discharge machine links to each other for with gas transport extremely the sludge drying machine is returned to the pipeline bypass interface of spiral discharge machine again through pipeline bypass interface, prevents under negative pressure state that wild wind is inhaled, the spiral discharge machine be used for with dry sludge that the sludge drying machine produced sends into dry sludge storage bin.
Optionally, the dust remover is a high-temperature bag type dust remover, and is used for removing sludge particles in the mixture of the water vapor and the air.
Optionally, the deodorization system includes pretreatment unit and purification unit, pretreatment unit is used for carrying out the preliminary treatment to the waste gas that the sludge drying machine produced, purification unit is used for carrying out further purification to the gas after the preliminary treatment.
Optionally, the pretreatment unit pretreats the exhaust gas by using a chemical process and/or a physical process; the purification unit is used for purifying waste gas containing malodorous components by at least one of biological washing, biological filtration, acid-base washing and chemical oxidation.
Optionally, the sludge drying machine is a disc type high-temperature sludge drying machine, and the disc type high-temperature sludge drying machine comprises a mud scraper, an air inlet, a steam outlet, a feed inlet, a discharge outlet, a rotor, a stator, a stirrer, a steam inlet and a condensate outlet.
Optionally, the disc type high-temperature sludge drying machine is used for drying sludge, condensed water generated after steam entering from a steam inlet releases heat is discharged from the condensed water outlet, and water vapor generated by gasifying water in the sludge is discharged from the steam outlet.
The utility model discloses a sludge drying machine energy saving and consumption reduction and waste gas zero release system based on zero release framework, including sludge drying machine, spiral discharge machine, dust remover, regenerator, circulating fan, heat exchanger, cooling tower and deodorization system, sludge drying machine receives the mud of sludge conveying pump conveying, and is right sludge carries out the mummification and handles the mixture of vapor and air that produces, the dust remover with sludge drying machine links to each other, is used for right the mixture of vapor and air removes dust, the regenerator with the dust remover links to each other, is used for the process the high-temperature gas after the dust remover produces cools down the dehumidification, heat exchanger respectively with regenerator and the cooling tower links to each other for carry out the heat exchange to the cold water that the cooling tower provided and the gas after the regenerator cooling, deodorization system respectively with heat exchanger and the regenerator links to each other, the heat regenerator is used for feeding the waste gas passing through the high temperature of the heat exchanger into the circulating fan after deodorization treatment, and the circulating fan is respectively connected with the heat regenerator and the sludge drier and used for feeding the gas into the sludge drier. This scheme breaks through traditional concept, thoroughly realizes the exhaust-gas treatment zero release, eliminated the pollution hidden danger to the environment, solve the problem of manufacturing enterprise's long-term safety, this system retrieves heat energy, furthest practices thrift the working costs, energy saving and consumption reduction, realize green, civilized production, simultaneously with sludge drying machine main part equipment integrated design, neat, coordinate, pleasing to the eye, do not have the aiutage, indoor (outdoor) all can arrange, do not influence facade structure, compare with traditional sludge drying deodorization technology, the processing scale reduces by a wide margin (a large amount of vapor condensate water, the gas volume that needs to handle reduces greatly), the sexual valence relative altitude, good economic benefits has. In addition, zero emission of waste gas cyclic treatment is realized, the environment is effectively protected, and excessive pollution discharge punishment under environmental inspection and special accident condition conditions is effectively avoided, so that enterprises are not influenced by external uncertain environment factors.
Drawings
Fig. 1 is a block diagram of a sludge drying machine energy saving and consumption reduction and waste gas zero emission system based on a zero emission framework provided by an embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad embodiments of the invention. It should be further noted that, for convenience of description, only some structures, but not all structures, related to the embodiments of the present invention are shown in the drawings.
The present solution will now be described in detail with reference to the system.
Fig. 1 is a block diagram of a sludge drying machine energy saving and consumption reduction and waste gas zero emission system based on a zero emission framework provided by an embodiment of the present invention. As shown in fig. 1, the system includes:
the system comprises a sludge drier 101, a spiral discharging machine 102, a dust remover 103, a heat regenerator 104, a circulating fan 105, a heat exchanger 106, a cooling tower 107 and a deodorization system 108. Optionally, a sludge transfer pump 109 and a dry sludge storage bin 110 are also included.
The sludge drier 101 receives the sludge conveyed by the sludge conveying pump 109, dries the sludge to obtain a mixture of water vapor and air, the dust remover 103 is connected with the sludge drier 101, for dedusting the mixture of water vapor and air, a heat regenerator 104 is connected with the deduster 103, for cooling the high-temperature gas passing through the dust remover 103, a heat exchanger 106 is respectively connected with the heat regenerator 104 and the cooling tower 107, for exchanging heat between the cold water supplied from the cooling tower 107 and the gas cooled by the heat regenerator 104, a deodorization system 108 is respectively connected to the heat exchanger 106 and the heat regenerator 104, the heat regenerator 104 is used for sending the waste gas after the waste gas passes through the heat exchanger 106 to the circulating fan 105 after being deodorized, and the circulating fan 105 is respectively connected with the heat regenerator 104 and the sludge drier 101 and is used for sending the purified gas to the sludge drier 101 again.
Wherein, the temperature of the gas after dust removal by the dust remover is about 100 ℃, and after the gas is cooled to about 90 ℃ by the heat regenerator, the condensed water in the heat exchanger and the cooling tower carries out heat exchange. The gas deodorized by the deodorization system is about 30 ℃, the gas is heated by the heat regenerator to 70 ℃ and then is conveyed to the circulating fan, and the circulating fan conveys hot air to the bypass interfaces of the sludge drier and the spiral discharging machine, so that wild wind is prevented from entering the sludge drier in a negative pressure running state.
In one embodiment, the sludge dryer is a disc type high-temperature sludge dryer, and the disc type high-temperature sludge dryer comprises a mud scraper, an air inlet, a steam outlet, a feeding hole, a discharging hole, a rotor, a stator, a stirrer, a steam inlet and a condensed water outlet. Optionally, the disc type high-temperature sludge drying machine further comprises a motor driving device, and the disc type high-temperature sludge drying machine is driven by a motor. The superheated steam enters the sludge drying machine through the steam inlet, the sludge enters through the feed inlet, the sludge is discharged from the discharge port after being stirred by the mud scraper and dried by the superheated steam in the sludge drying machine, condensed water generated after the steam entering the steam inlet releases heat is discharged from the condensed water outlet, water vapor obtained by gasifying the water in the sludge is discharged from the steam outlet, and the air inlet is used for supplementing gas to the inside of the sludge drying machine when the system is started to play a role in mixing disturbance.
Preferably, the circulating fan 105 is connected to the screw discharging machine 102, and is configured to convey gas to a bypass pipe interface of the screw discharging machine 102, and the screw discharging machine 102 is configured to convey dry sludge generated by the sludge drying machine into the dry sludge bin 110. In this scheme, lead a bypass with circulating hot air through circulating fan and carry the sealed pipeline interface of spiral discharging machine to this mummification machine that prevents to be negative pressure state prevents that the screw conveyer from the cold wind of spiral discharging machine discharge gate seepage, prevents the scale deposit of screw conveyer, blocks up, guarantees the safe and stable operation of system.
In one embodiment, the dust collector is a high-temperature bag type dust collector for removing sludge particles in the mixture of the water vapor and the air. For example, an internal filtering and lower air inlet mode can be adopted, and the dust remover can be composed of a shell, a valve system, a back blowing system, an ash conveying system and the like.
In one embodiment, the deodorizing system is biodegradable for deodorizing. The mode closely combines the characteristics of the odor generated by the drying machine, scientifically selects design parameters and achieves accurate treatment.
In another embodiment, the deodorization system comprises a pretreatment unit and a purification treatment unit, wherein the pretreatment unit is used for pretreating the waste gas generated by the sludge drying machine, and the purification treatment unit is used for further purifying the pretreated gas. The pretreatment unit pretreats the waste gas by using a chemical process and/or a physical process, and specifically, the pretreatment unit pretreats the waste gas by using an acid-base neutralization and chemical oxidation mode. The purification unit is used for purifying waste gas containing malodorous components by at least one of biological washing, biological filtration, acid-base washing and chemical oxidation.
In one embodiment, the system further comprises an evaporator, a condenser and a waste heat condenser, wherein the evaporator is connected with the heat exchanger, the condenser is respectively connected with the evaporator and the waste heat condenser, and the waste heat condenser is used for producing hot water, heating boiler feed water or producing other heat energy media. Wherein, to the place that carries out the mud stoving in non-power plant steam, the heat retrieval and utilization requires highly, and the big condition of retrieval and utilization is carried out recycle through the waste heat condenser to the latent heat of gasification of a large amount that is not absorbed by the waste gas of recycling, has improved heat recovery efficiency.
In the scheme, high-temperature odor discharged by the sludge drying machine enters the high-temperature bag type dust collector firstly to remove sludge particles in gas, and the high-temperature gas after dust removal enters the heat exchanger to exchange heat with the recycled gas, so that the inlet air temperature is increased, and the heat input is reduced. And the cooled and dehumidified gas enters a deodorization system to accurately treat the odor in the gas. The low-temperature gas from which the odor has been removed is returned to the heat exchanger again, and heat exchange is performed with the high-temperature gas discharged, thereby raising the gas temperature. The gas with the temperature increased by the heat exchanger enters the sludge drier again through the circulating fan to form closed circulation and realize zero emission.
The scheme realizes zero emission of waste gas treatment, saves the operating cost to the maximum extent by recovering heat energy, greatly reduces the treatment scale, has high cost performance and good economic benefit compared with the traditional sludge drying and deodorizing process.
In the scheme, a sludge drier is used for receiving sludge conveyed by a sludge conveying pump, and drying the sludge to obtain a mixture of water vapor and air; dedusting the mixture of the water vapor and the air by a deduster; cooling the gas generated by the dust remover through a heat regenerator; performing heat exchange on cold water provided by the cooling tower and the gas cooled by the heat regenerator through heat exchange; after the waste gas generated by the heat exchanger is deodorized by a deodorization system, the waste gas is sent into the circulating fan through the heat regenerator; and sending gas into the sludge drier through the circulating fan. This scheme, this scheme breaks through traditional concept, thoroughly realize exhaust-gas treatment zero release, eliminated the pollution hidden danger to the environment, solve the problem of manufacturing enterprise's long-term safety, this system retrieves heat energy, furthest practices thrift the working costs, energy saving and consumption reduction, realize green, civilized production, simultaneously with sludge drying machine main part equipment integrated design, it is neat, coordinate, pleasing to the eye, do not have the aiutage, indoor (outdoor) all can arrange, do not influence facade structure, compare with traditional sludge drying deodorization technology, the processing scale greatly reduced (a large amount of vapor condensate water, the gas volume that needs to handle reduces greatly), the sexual valence relative altitude, good economic benefits has. In addition, zero emission of waste gas cyclic treatment is realized, the environment is effectively protected, and excessive pollution discharge punishment under environmental inspection and special accident condition conditions is effectively avoided, so that enterprises are not influenced by external uncertain environment factors.
It should be noted that, in the embodiment of the energy saving and consumption reduction and waste gas zero emission system of the sludge drying machine based on the zero emission architecture, the included units and modules are only divided according to functional logic, but are not limited to the above division, as long as corresponding functions can be realized; in addition, specific names of the functional units are also only for convenience of distinguishing from each other, and are not used to limit the scope of the embodiments of the present invention.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the embodiments of the present invention are not limited to the particular embodiments described herein, but are capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the embodiments of the invention. Therefore, although the embodiments of the present invention have been described in greater detail through the above embodiments, the embodiments of the present invention are not limited to the above embodiments, and many other equivalent embodiments can be included without departing from the concept of the embodiments of the present invention, and the scope of the embodiments of the present invention is determined by the scope of the appended claims.
Claims (8)
1. Sludge drying machine energy saving and consumption reduction and waste gas zero release system based on zero release framework, its characterized in that, the system includes: sludge drying machine, spiral discharge machine, dust remover, regenerator, circulating fan, heat exchanger, cooling tower and deodorizing system, sludge drying machine receives the mud that the sludge delivery pump sent, it is right sludge carries out the mummification and handles the mixture that obtains vapor and air, the dust remover with sludge drying machine links to each other, is used for right the mixture of vapor and air removes dust, the regenerator with the dust remover links to each other, is used for right the gas that the dust remover produced cools down, heat exchanger respectively with the regenerator and the cooling tower links to each other for cold water that provides the cooling tower and the gas after the regenerator cooling carry out heat exchange, deodorizing system respectively with heat exchanger and the regenerator links to each other, be used for right the waste gas that heat exchanger produced carries out the deodorization back, through the regenerator sends into circulating fan, and the circulating fan is respectively connected with the heat regenerator and the sludge drier and is used for feeding the purified gas into the sludge drier.
2. The system of claim 1, wherein the circulating fan is connected with the spiral discharging machine and used for conveying a part of treated gas to a pipeline bypass interface of the spiral discharging machine and returning the part of treated gas to the sludge drying machine through the pipeline bypass interface so as to prevent wild wind from being sucked in under a negative pressure state, and the spiral discharging machine is used for conveying dry sludge generated by the sludge drying machine into a dry sludge bin.
3. The system of claim 1, wherein the dust separator is a high temperature bag separator for removing sludge particulates from the mixture of water vapor and air.
4. The system of claim 1, wherein the deodorization system comprises a pretreatment unit and a purification unit, the pretreatment unit is used for pretreating the waste gas generated by the sludge drying machine, and the purification unit is used for further purifying the pretreated gas.
5. The system of claim 4, wherein the pretreatment unit pretreats the exhaust gas using a chemical process and/or a physical process; the purification treatment unit is used for purifying waste gas containing malodorous components by at least one of biological washing, biological filtration, acid-base washing and chemical oxidation.
6. The system of claim 1, wherein the sludge dryer is a disc type high temperature sludge dryer, and the disc type high temperature sludge dryer comprises a mud scraper, an air inlet, a steam outlet, a feed inlet, a discharge outlet, a rotor, a stator, a stirrer, a steam inlet and a condensed water outlet.
7. The system of claim 6, wherein the disc type high temperature sludge drying machine is used for drying sludge, condensed water generated after heat is released by steam entering from a steam inlet is discharged from a condensed water outlet, and water vapor obtained by heating and gasifying water in the sludge is discharged from the steam outlet.
8. The system of claim 1, further comprising an evaporator, a condenser and a waste heat condenser, wherein the evaporator is connected to the heat exchanger, the condenser is connected to the evaporator and the waste heat condenser, respectively, and the waste heat condenser is used for producing hot water, heating boiler feed water or producing other heat energy media.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111170778A (en) * | 2020-03-03 | 2020-05-19 | 广州金鹏环保工程有限公司 | Sludge drying machine energy-saving consumption-reducing and waste gas zero-discharge system and method based on zero-discharge framework |
| CN113499656A (en) * | 2021-07-09 | 2021-10-15 | 杭州国泰环保科技股份有限公司 | Waste gas zero discharge system based on sludge drying and control method thereof |
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2020
- 2020-03-03 CN CN202020246276.9U patent/CN211734214U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111170778A (en) * | 2020-03-03 | 2020-05-19 | 广州金鹏环保工程有限公司 | Sludge drying machine energy-saving consumption-reducing and waste gas zero-discharge system and method based on zero-discharge framework |
| CN113499656A (en) * | 2021-07-09 | 2021-10-15 | 杭州国泰环保科技股份有限公司 | Waste gas zero discharge system based on sludge drying and control method thereof |
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