CN106439859A - Two-stage sludge carbonization and incineration method and system - Google Patents
Two-stage sludge carbonization and incineration method and system Download PDFInfo
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- CN106439859A CN106439859A CN201611084172.7A CN201611084172A CN106439859A CN 106439859 A CN106439859 A CN 106439859A CN 201611084172 A CN201611084172 A CN 201611084172A CN 106439859 A CN106439859 A CN 106439859A
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- carbonization
- sludge
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- heat exchanger
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/001—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals for sludges or waste products from water treatment installations
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/04—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment drying
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/46—Recuperation of heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2209/00—Specific waste
- F23G2209/12—Sludge, slurries or mixtures of liquids
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a two-stage sludge carbonization and incineration method. The two-stage sludge carbonization and incineration method comprises the following steps that 1, first-time sludge carbonization is performed; 2, second-time carbonization is conducted on the sludge subjected to the first-time carbonization; 3, the sludge subjected to second-time carbonization is incinerated; 4, smoke produced after incineration is cooled to the predetermined temperature of the second-time carbonization and used in the step 2; 5, the smoke discharged in the step 2 is cooled to first-time carbonization temperature and used in the step 1. Harmless, reduced and resourceful disposal is conducted on the sludge through sludge incineration in the method, the heat produced in sludge incineration is provided for carbonization heating, the heat source is recycled, meanwhile the heat transfer efficiency of two-stage sludge carbonization is high, and smoke heat utilization is sufficient.
Description
Technical field
The present invention relates to a kind of sludge two-part carbonization adds incinerating method and system.
Background technology
With the development of the city, environmental conservation is increasingly taken seriously.Among the sludge that municipal sewage plant produces, dense
The various pollutant for having contracted in sewage, larger to surrounding environment influence.As the construction of municipal sewage plant is constantly accelerated, dirty
Water process scale constantly increases, and the sludge yield of sewage treatment plant increases substantially so that the process problem of sludge is more projected.
The pollutant for concentrating in sludge mainly include inorganic, organic pollution, containing substantial amounts of pathogen and multiple huge sum of moneys
Category element, therefore, it is necessary to deal carefully with to sludge.Treatment of Sludge seeks to carry out depth harmless treatment to sludge, thorough
Bottom solves pollution of the sludge to environment and the harm to the mankind.The usual way of whole nation overwhelming majority sewage treatment plant is, to dirt
Mud is unprocessed or after simple process, directly transports to soot and rubbish blended landfill, arbitrarily stacks, does not much reach
Sanitary landfills standard;Long-term stacking, mosquitos and flies grows, and crops and everyway will be injured by destructiveness, be caused serious
Secondary pollution, has run counter to the principle of environmental conservation, let alone resource circulation utilization.
At present, domestic is substantially sludge condensation and dehydration technique, after the concentrated and dehydration of sludge, typically can only be by sludge
Moisture content is down to 80% or so, and so high moisture content is unfavorable for the subsequent transportation of sludge and disposal.
The mode of sludge anhydration burning can realize sludge reduction and innoxious, so that sludge is effectively processed and provide
The utilization in source, is the developing direction of domestic and international sludge treatment.
Content of the invention
For the problems referred to above, the present invention provides a kind of minimizing for realizing municipal sludge, the sludge of innoxious and resource
Two-part carbonization adds incinerating method and system.
For reaching above-mentioned purpose, a kind of sludge two-part carbonization of the present invention adds incinerating method, and the method is comprised the following steps:
(1) sludge is carried out first time carbonization;
(2) sludge of first time carbonization is carried out second carbonization;
(3) sludge of second carbonization is burned;
(4) flue gas after burning is cooled to the predetermined temperature of second carbonization and for step (2);
(5) flue gas that discharges in step (2) is cooled to first time carburizing temperature and for step (1).
Preferably, further comprising the steps of after step (2):
(1) sludge for obtaining after carbonization is sent into dewatered sludge storehouse;
(2) by first time carbonization and second carbonization discharge waste gas condensation and will produce wastewater collection;
(3) condensed waste gas is passed through burner combustion-supporting.
Preferably, also including step before step (1):Sludge is carried out filter pressing, the wastewater collection in filter pressing is processed.
Preferably, also including step after step (5):
(1) flue gas that discharges in step (1) is condensed;
(2) will discharge after condensed fume treatment.
Preferably, further comprising the steps of after step (3):
(1) into burner, combustion air is blasted;
(2) in the flue gas for producing to burning, cold wind is mixed.
For reaching above-mentioned purpose, a kind of sludge two-part carbonization of the present invention adds CIU, including carbonizing plant and burning
Device;
The carbonizing plant includes the low temperature carbonization furnace for first time carbonization, the high temperature cabonization for second carbonization
Stove, dewatered sludge storehouse;The low-temperature carbonization outlet of still is connected with the high temperature carbonization furnace entrance;The high temperature cabonization outlet of still and institute
State the entrance connection of dewatered sludge storehouse;
The burner includes the incinerator being connected with dewatered sludge storehouse outlet;The incinerator includes to be arranged on and burns
Burn the burner in stove;
The high temperature carbonization furnace includes to arrange for providing the first heat exchanger of heat for second carbonization in stove, described
Low temperature carbonization furnace includes to arrange for providing the second heat exchanger of heat for first time carbonization in stove;The first heat exchanger
Entrance is connected with the flue gas gas outlet of the burner in incinerator;The first heat exchanger outlet and the second heat exchanger
Entrance connection.
Preferably, also including mechanism filter-pressing device and the purifier processed by sludge;
The mechanism filter-pressing device includes mechanical filter press and the filter pressing waste water tank being detachably connected on mechanical filter press;
The purifier include the second condenser, for process in the combustion furnace produce flue gas flue-gas treater,
The chimney being connected with the flue-gas treater gas outlet and the air-introduced machine for being fixedly connected on the chimney entrance;The flue gas
Processor is connected with second condensator outlet;The second heat exchanger outlet is connected with the second condenser inlet.
Preferably, what the carbonizing plant also included to be connected with the low temperature carbonization furnace and the high temperature carbonization furnace gas outlet
First condenser and with first condenser be connected to collect condensed water first condensation waste water tank;
The burner also includes to be arranged on incinerator side for the aerator to the combustor blast;
First condensator outlet is connected with the burner inlet;The burner outlet and the flue-gas treater
Slag notch is respectively arranged with lime-ash transport vehicle.
Preferably, the first heat exchanger is provided with bimetal leaf valve with the second heat exchanger junction;Institute
State second heat exchanger and second condensing tube junction arrange be sequentially connected electrically temp.-control valve, for detecting flue gas temperature
The temperature sensor of degree and the controller for control valve switch.
Thermal source needed for municipal sludge carbonization drying nest is provided by the present invention by own combustion flue gas, realizes resources circulation profit
With.After the purified device of flue gas that incinerator is produced is processed, qualified discharge.In system flow, the waste water of generation accesses Sewage Plant
Process, lime-ash is transported outward, properly innoxious landfill disposal, basic non-secondary pollution.The heat transfer efficiency of two-part carbonization is higher, flue gas
The utilization of heat is more abundant.The dried dewatered sludge of carbonization and carbonization furnace exhaust, through the burning of incinerator, obtain innoxious,
Minimizing, disposal of resources.
Description of the drawings
Fig. 1 is Example 1 and Example 2 of the present invention total system schematic flow sheet.
Specific embodiment
With reference to Figure of description, the present invention will be further described.
Embodiment 1
As shown in figure 1, a kind of sludge two-part carbonization of the present embodiment adds incinerating method, the method is comprised the following steps:
(1) sludge is carried out first time carbonization;
(2) sludge of first time carbonization is carried out second carbonization;
(3) sludge of second carbonization is burned;
(4) flue gas after burning is cooled to the predetermined temperature of second carbonization and for step (2);
(5) flue gas that discharges in step (2) is cooled to first time carburizing temperature and for step (1).
Further comprising the steps of after step (2):
(1) sludge for obtaining after carbonization is sent into dewatered sludge storehouse;
(2) by first time carbonization and second carbonization discharge waste gas condensation and will produce wastewater collection;
(3) condensed waste gas is passed through burner combustion-supporting.
Also included step before step (1):Sludge is carried out filter pressing, the wastewater collection in filter pressing is processed.
Also include step after step (5):
(1) flue gas that discharges in step (1) is condensed;
(2) will discharge after condensed fume treatment.
Further comprising the steps of after step (3):
(1) into burner, combustion air is blasted;
(2) in the flue gas for producing to burning, cold wind is mixed.;
Concrete grammar step:The primary sludge of moisture content 90% is first sent into mechanical filter press 1 and carries out filter pressing.Filter pressing waste water enters
Enter filter pressing waste water tank 2 to store, transfer Sewage Plant process.The sludge of moisture content 80% is obtained after filter pressing.The sludge sends into cryogenic carbon
Changing stove 3 carries out indirectly heat carbonization.The sludge of moisture content 50% is obtained after carbonization.Then sludge entrance high temperature carbonization furnace 4 enters
Row indirectly heat carbonization, obtains the dewatered sludge of moisture content 30% after carbonization.Dewatered sludge is sent into dewatered sludge storehouse 7 and is stored for future use.Sludge
The waste gas for discharging in low temperature carbonization furnace 3 and high temperature carbonization furnace 4 is accessed and is cooled down with cooling water indirectly in the first condenser 5.Should
After the waste water that water vapor condensation in waste gas is produced is collected by the first condensation waste water tank 6, Sewage Plant process is transferred, condensed useless
Pneumatic transmission enters combustion-supporting in the burner of incinerator 8.The sludge for storing in dewatered sludge storehouse 7 is also fed into burning in the burner of incinerator 8,
While blasting air-breathing in from aerator 10 to burner.Dewatered sludge is useless with what low temperature carbonization furnace 3 and high temperature carbonization furnace 4 were discharged
Gas is after burning in incinerator 8, and the lime-ash of generation collects outward transport, innoxious landfill by automobile;About 900 DEG C of combustion process generation
Flue gas, by aerator air blast mix proper amount of normal-temperature cold wind after, temperature drops to 750 DEG C, then passes in high temperature carbonization furnace 4,
The sludge of indirectly heat moisture content 50%, flue-gas temperature is reduced to 500 DEG C, is subsequently passed in low temperature carbonization furnace 3, and indirectly heat contains
The sludge of water rate 80%, flue-gas temperature is reduced to 200 DEG C, subsequently into the second condenser 13.Flue gas is in the second condenser 13
Condensation, the condensation waste water of generation accesses second and condenses waste water tank 14, transfers Sewage Plant process.Condensed flue gas is accessed at flue gas
Reason device 9 carries out fume treatment.The lime-ash that fume treatment is produced is transported outward by automobile, innoxious landfill.Flue gas after process is by air inducing
11 suction chimney 12 of machine, qualified discharge is in air.
The flue gas that the present embodiment is produced by the use of municipal sludge carbonization after-combustion realizes following for resource as the thermal source of carbide furnace
Ring is utilized.After the purified device of flue gas that incinerator is produced is processed, qualified discharge.In system flow, the waste water of generation accesses dirt
Water factory is processed, the lime-ash outward transport that dewatered sludge is produced after burning, properly innoxious landfill disposal, basic non-secondary pollution.Condenser
Using the indirect type of cooling, cooling water reduces water consumption without the need for process, reusable edible.The heat transfer efficiency of two-part carbonization is more
Height, the utilization of flue gas heat is more abundant.The waste gas that the dried dewatered sludge of carbonization and carbide furnace are discharged, burning through incinerator
Burn, obtain innoxious, minimizing, disposal of resources.
Embodiment 2
As shown in figure 1, a kind of sludge two-part carbonization of the present embodiment adds CIU, including carbonizing plant and burning dress
Put;
The carbonizing plant includes the low temperature carbonization furnace 3 for first time carbonization, the high temperature cabonization for second carbonization
Stove 4, dewatered sludge storehouse 7;The low temperature carbonization furnace 3 is exported and is connected with 4 entrance of the high temperature carbonization furnace;The high temperature carbonization furnace 4 goes out
Mouth is connected with 7 entrance of dewatered sludge storehouse;
The burner includes the incinerator 8 being connected with the dewatered sludge storehouse 7 outlet;The incinerator 8 includes to arrange
Burner in incinerator 8;
The high temperature carbonization furnace 4 includes to arrange for providing the first heat exchanger of heat, institute for second carbonization in stove
Stating low temperature carbonization furnace 3 includes to arrange for providing the second heat exchanger of heat for first time carbonization in stove;First heat is handed over
Exchanger inlet is connected with the flue gas gas outlet of the burner in incinerator 8;The first heat exchanger outlet and the described second heat
The entrance connection of exchanger.
Also include mechanism filter-pressing device and the purifier processed by sludge;
The mechanism filter-pressing device includes mechanical filter press 1 and the filter pressing waste water tank being detachably connected on mechanical filter press
2;
The purifier includes to produce the flue-gas treater 9 of flue gas and the flue gas for processing in the combustion furnace
The chimney 12 of 9 gas outlet of processor connection and it is fixedly connected on the air-introduced machine 11 of 12 entrance of the chimney;The fume treatment
Device 9 and 13 outlet of the second condenser;Second condenser, 13 entrance and the second heat exchanger outlet.
The carbonizing plant also includes first for being connected with the low temperature carbonization furnace 3 and 4 gas outlet of the high temperature carbonization furnace
Condenser 5 and with first condenser 5 be connected to collect condensed water first condensation waste water tank 6;
The burner also includes to be arranged on incinerator side for the aerator 10 to the combustor blast;
First condenser 4 is exported and is connected with the burner inlet;The burner outlet and the fume treatment
9 slag notch of device is respectively arranged with lime-ash transport vehicle.
The first heat exchanger is provided with bimetal leaf valve with the second heat exchanger junction;Second heat
The junction of exchanger and second condensing tube arrange be sequentially connected electrically temp.-control valve, for detecting the temperature of flue-gas temperature
Sensor and the controller for control valve switch;
Concrete grammar step:The primary sludge of moisture content 90% is first sent into mechanical filter press 1 and carries out filter pressing.Filter pressing waste water enters
Enter filter pressing waste water tank 2 to store, transfer Sewage Plant process.The sludge of moisture content 80% is obtained after filter pressing.The sludge sends into cryogenic carbon
Changing stove 3 carries out indirectly heat carbonization.The sludge of moisture content 50% is obtained after carbonization.Then sludge entrance high temperature carbonization furnace 4 enters
Row indirectly heat carbonization, obtains the dewatered sludge of moisture content 30% after carbonization.Dewatered sludge is sent into dewatered sludge storehouse 7 and is stored for future use.Sludge
The waste gas for discharging in low temperature carbonization furnace 3 and high temperature carbonization furnace 4 is accessed and is cooled down with cooling water indirectly in the first condenser 5.Should
After the waste water that water vapor condensation in waste gas is produced is collected by the first condensation waste water tank 6, Sewage Plant process is transferred, condensed useless
Pneumatic transmission enters combustion-supporting in the burner of incinerator 8.The sludge for storing in dewatered sludge storehouse 7 is also fed into burning in the burner of incinerator 8,
While blasting air-breathing in from aerator 10 to burner.Dewatered sludge is useless with what low temperature carbonization furnace 3 and high temperature carbonization furnace 4 were discharged
Gas is after burning in incinerator 8, and the lime-ash of generation collects outward transport, innoxious landfill by automobile;About 900 DEG C of combustion process generation
Flue gas, after mixing proper amount of normal-temperature cold wind, temperature drops to 750 DEG C, when flue gas that temperature is 750 DEG C enters first heat exchanger
When, the bimetal leaf valve closing, flue gas provides heat for the high temperature carbonization furnace to be reduced so as to temperature, when flue-gas temperature drops
When as little as 500 DEG C, the bimetal leaf valve is opened, and temperature is that 500 DEG C of flue gas enters into second heat exchanger;Temperature 500
DEG C flue gas provide heat for the low temperature carbonization furnace, flue-gas temperature reduces, when flue-gas temperature is reduced to 200 DEG C, the temperature
Degree induction apparatuss send a signal to the controller, and the controller controls the temp.-control valve to open, and temperature is 200 DEG C of flue gas
Enter the second condenser 13.Flue gas is using indirect type of cooling condensation in the second condenser 13, and the condensation waste water of generation is accessed
Second condensation waste water tank 14, transfers Sewage Plant process.Condensed flue gas accesses flue-gas treater 9 and carries out fume treatment.Flue gas
Process the lime-ash for producing to be transported outward by automobile, innoxious landfill.Flue gas after process is by 11 suction chimney 12 of air-introduced machine, qualified discharge
To in air.
The flue gas that the present embodiment is produced by the use of municipal sludge carbonization after-combustion as the thermal source of carbide furnace, two-part carbonization
Heat transfer efficiency is higher, and the utilization of flue gas heat is more abundant;Realize resource circulation utilization.The purified device of flue gas that incinerator is produced
After process, qualified discharge.In system flow, the waste water of generation accesses Sewage Plant process, outside the lime-ash that dewatered sludge is produced after burning
Transport, properly innoxious landfill disposal, basic non-secondary pollution.Condenser adopts the indirect type of cooling, and cooling water, can without the need for processing
Recycle, reduce water consumption.The waste gas that the dried dewatered sludge of carbonization and carbide furnace are discharged, through the burning of incinerator, obtains
To innoxious, minimizing, disposal of resources.
More than, only presently preferred embodiments of the present invention, but protection scope of the present invention is not limited thereto, any it is familiar with sheet
Those skilled in the art the invention discloses technical scope in, the change or replacement that can readily occur in, should all cover
Within protection scope of the present invention.Therefore, the protection domain that protection scope of the present invention should be defined by claim is defined.
Claims (9)
1. a kind of sludge two-part carbonization adds incinerating method, it is characterised in that:The method is comprised the following steps:
(1) sludge is carried out first time carbonization;
(2) sludge of first time carbonization is carried out second carbonization;
(3) sludge of second carbonization is burned;
(4) flue gas after burning is cooled to the predetermined temperature of second carbonization and for step (2);
(5) flue gas that discharges in step (2) is cooled to first time carburizing temperature and for step (1).
2. a kind of sludge two-part carbonization adds incinerating method as claimed in claim 1, it is characterised in that:After step (2)
Further comprising the steps of:
(1) sludge for obtaining after carbonization is sent into dewatered sludge storehouse;
(2) by first time carbonization and second carbonization discharge waste gas condensation and will produce wastewater collection;
(3) condensed waste gas is used for combustion-supporting.
3. a kind of sludge two-part carbonization adds incinerating method as claimed in claim 1, it is characterised in that:Before step (1)
Also include step:Sludge is carried out filter pressing, the wastewater collection in filter pressing is processed.
4. a kind of sludge two-part carbonization adds incinerating method as claimed in claim 1, it is characterised in that:After step (5)
Also include step:
(1) flue gas that step (1) discharged afterwards will be used for be condensed;
(2) will discharge after condensed fume treatment.
5. a kind of sludge two-part carbonization adds incinerating method as claimed in claim 1, it is characterised in that:After step (3)
Further comprising the steps of:
(1) when burning, combustion air is blasted;
(2) in the flue gas for producing to burning, cold wind is mixed.
6. a kind of sludge two-part carbonization adds CIU, it is characterised in that:Including carbonizing plant and burner;
The carbonizing plant includes the low temperature carbonization furnace for first time carbonization, the high temperature carbonization furnace for second carbonization, does
Sludge bin;The low-temperature carbonization outlet of still is connected with the high temperature carbonization furnace entrance;The high temperature cabonization outlet of still is dry with described
Sludge bin entrance connects;
The burner includes the incinerator being connected with dewatered sludge storehouse outlet;The incinerator includes to be arranged on incinerator
Interior burner;
The high temperature carbonization furnace includes to arrange for providing the first heat exchanger of heat, the low temperature for second carbonization in stove
Carbide furnace includes to arrange for providing the second heat exchanger of heat for first time carbonization in stove;The first heat exchanger entrance
Connect with the flue gas gas outlet of the burner in incinerator;The first heat exchanger outlet is entered with the second heat exchanger
Mouth connection.
7. a kind of sludge two-part carbonization adds CIU as claimed in claim 6, it is characterised in that:Also include to carry out sludge
The mechanism filter-pressing device of process and purifier;
The mechanism filter-pressing device includes mechanical filter press and the filter pressing waste water tank being detachably connected on mechanical filter press;
The purifier includes the second condenser, produces the flue-gas treater of flue gas and institute for processing in the combustion furnace
The chimney for stating flue-gas treater outlet connection and the air-introduced machine for being fixedly connected on the chimney entrance;The flue-gas treater
Entrance is connected with the second condensator outlet;Second condenser inlet and the second heat exchanger outlet.
8. a kind of sludge two-part carbonization adds CIU as claimed in claim 6, it is characterised in that:The carbonizing plant is also wrapped
Include the first condenser being connected with the low temperature carbonization furnace and the high temperature carbonization furnace gas outlet and with first condenser
It is connected to collect the first condensation waste water tank of condensed water;
The burner also includes to be arranged on incinerator side for the aerator to the combustor blast;
First condensator outlet is connected with the burner inlet;The burner outlet and the flue-gas treater are slagged tap
Mouth is respectively arranged with lime-ash transport vehicle.
9. a kind of sludge two-part carbonization adds CIU as claimed in claim 7, it is characterised in that:The first heat exchanger
The second heat exchanger junction is provided with bimetal leaf valve;The second heat exchanger and second condensing tube
Junction arrange be sequentially connected electrically temp.-control valve, for detecting the temperature sensor of flue-gas temperature and opening for control valve
The controller of pass.
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Cited By (5)
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CN106904814A (en) * | 2017-04-24 | 2017-06-30 | 上海梵煦环境科技有限公司 | A kind of method of sludge carbonization resintering |
CN106949475A (en) * | 2017-04-01 | 2017-07-14 | 广东焕杰环保科技有限公司 | A kind of sludge incinerating system and its incinerating method |
CN106979524A (en) * | 2017-04-01 | 2017-07-25 | 广东焕杰环保科技有限公司 | A kind of flue gas recirculation incinerator and its incinerating method |
CN107686111A (en) * | 2017-08-23 | 2018-02-13 | 无锡绿麦环保科技有限公司 | Sludge drying carbonization treatment technique |
CN112979122A (en) * | 2021-02-08 | 2021-06-18 | 湖南爵铭环保有限公司 | Sludge carbonizing device |
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