CN105157044B - A kind of waste incinerator leachate recycle denitrification apparatus and method - Google Patents
A kind of waste incinerator leachate recycle denitrification apparatus and method Download PDFInfo
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Abstract
The invention discloses the sensor at a kind of waste incinerator leachate recycle denitrification apparatus and method, including percolate gun array, the thermocouple of the first flue and infrared radiation thermometer and SNCR gun arrays, flue outlet.Method is first to carry out percolate precipitation and filtering and mixed with ammoniacal liquor, and according to Temperature numerical, the control of progress flow closes simultaneously water purification cleaning and the melting concn of adjustment SNCR injection flows and ammoniacal liquor with automatic, until the NOX numerical value at flue outlet reaches requirement.Leachate recycle can be made full use of to operate, mix ammoniacal liquor and be combined the overall denitration of progress with SNCR, reduce the moisture sprayed into denitrating system and compressed air, ensure that the temperature of boiler furnace, greatly reduce the dosage of water purification, compressed air and electric power.Present apparatus price is low, practical, and used method is simple, and meets environmental requirement, can be widely used for each garbage incinerating power plant, and application prospect is wider.
Description
Technical field
The present invention relates to denitration process technique, more particularly to a kind of waste incinerator leachate recycle denitrification apparatus and side
Method.
Background technology
Rubbish is in municipal solid waste incinerator because anaerobic fermentation, rain-out, organic matter decomposition etc. are raw in stacking process
Inorganic or organic principle the complicated waste water of high concentration is formd under thing chemical degradation effect, i.e. percolate.Without place
The percolate of reason is by underground water pollution water source and soil, so as to cause serious shadow to surrounding environment and health
Ring.Therefore, it is necessary to harmless treatment is carried out to percolate, so as to reach the pollution of effectively control percolate.
Processing to percolate at this stage is based on biochemical process, but there is complex process, processing for the handling process
The shortcomings of time is long, processing cost is high, floor space is big, building time is long, maintenance cost is high.Have technique simple due to returning spray
Singly, the features such as operation and maintenance cost is low, building time is short, one-time investment is small, processing cost is relatively low, external house refuse is burnt
Power plant is burnt to start extensively using time spray processing percolate.When refuse thermal value is higher, and burn the burning temperature in burner hearth
When degree allows, just percolate can be sprayed into incinerator, high temperature harmless treatment is carried out to percolate.With domestic water
Flat raising, the calorific value of house refuse increase, and domestic MSW Incineration Plant gradually starts to apply back spray.
Because requirement of the country to pollutant emission is increasingly strict, every waste incinerator is both needed at least supporting SNCR devices
NO can just be madeXDischarge meet the requirement of environmental protection.SNCR devices spray into ammoniacal liquor or urea in incinerator and NOXReaction generation N2, so as to
Reach the purpose of denitration.It is each independent system that SNCR and percolate, which return spray, at this stage, fail to be formed one it is unified
Cooperate with the entirety of denitration.
The content of the invention
The shortcomings that it is an object of the invention to overcome above-mentioned prior art and deficiency, there is provided a kind of waste incinerator percolate
Return spray denitrification apparatus and method.While high temperature harmless treatment is carried out to percolate, acted on SNCR systematic collaborations
Reduce domestic waste incineration NOXDischarge.
The present invention is achieved through the following technical solutions：
A kind of waste incinerator leachate recycle denitrification apparatus, including percolate jet control system, SNCR gun controls
System, the percolate gun array burned on burner hearth wall is arranged on, is arranged on the thermocouple 3 of the flue of waste heat boiler first
With infrared radiation thermometer 4, the SNCR gun arrays of the flue of waste heat boiler first are arranged on, are arranged on waste heat boiler flue exit
NOXSensor 8 and O2Sensor 9；
The SNCR spray gun control systems and percolate jet control system, NOXSensor 8 and O2Sensor 9 is connected.
The percolate gun array is made up of 4 spray guns, i.e. A spray guns 1, B spray guns 10, C spray guns 2 and D spray guns 11,
The equal independent control of flow of every spray gun, is highly respectively positioned at the 3/5 of furnace height；In this 4 spray guns, A spray guns 1 and B spray guns
10 be one group, and C spray guns 2 and D spray guns 11 are one group；A spray guns 1 and B spray guns 10, which are respectively symmetrically distributed to be arranged on, burns burner hearth wall
Front wall and rear wall, C spray guns 2 and D spray guns 11, which are respectively symmetrically distributed, is arranged on the front wall for burning burner hearth wall and rear wall.
The A spray guns 1 and B spray guns 10 are located at the top of second level fire grate, and are in 30 °~45 ° with level；C spray guns 2 and D
Spray gun 11 is located at the top of third level fire grate, and is in 50 °~75 ° with level.
The thermocouple 3 and infrared radiation thermometer 4 are arranged at the first flue entrance of waste heat boiler 3m；The He of thermocouple 3
Infrared radiation thermometer 4 distinguishes 4, positioned at the middle part of the first flue of waste heat boiler four sides wall, thermocouple 3 and infrared radiation thermometer 4 it
Between mounting distance difference be no more than 30cm；The temperature value that thermocouple 3 and infrared radiation thermometer 4 are detected feeds back to percolate injection
Control system, the injection flow of each nozzle in percolate gun array is changed by the change of temperature value.
The SNCR gun arrays of the flue of waste heat boiler first, 3 layers are divided into, first layer is arranged on the cigarette of waste heat boiler first
At the 1/3 of road, the second layer is arranged at the 1/2 of the flue of waste heat boiler first, and third layer is arranged on the flue of waste heat boiler first
At 2/3.
The SNCR gun arrays of the flue of waste heat boiler first, 3 layers are divided into, every layer is uniformly distributed 7, i.e., before flue
4, wall, 3, the rear wall of flue；Wherein, the centre of front wall 2 is in being horizontally inserted, and another two with wall in 45 ° of opposite distributions；Afterwards
The centre 1 of wall is in being horizontally inserted, and another two with wall in 45 ° of opposite distributions.
The NOXSensor 8 and O2Sensor 9, it is arranged at waste heat boiler flue outlet 1m；NOXThe He of sensor 8
O2Below mounting distance 30cm between sensor 9.
The method that percolate returns spray denitration is as follows：
(1), percolate caused by heap garbage in MSW Incineration Plant is collected in diafiltration fluid pool；
(2) percolate, is pumped across by coarse filtration and thin mistake from percolate pond by percolate delivery pump
Two-stage filter is filtered, and is delivered in percolate clean solution tank；
(3), percolate is delivered in blender by percolate clean solution tank and carries out mixing match with ammoniacal liquor, makes ammoniacal liquor dense
Degree ratio reduces；
(4), mixed percolate clear liquid is pumped to percolate jet control system, by percolate injection control system
4 spray guns of system distribution percolate gun array, each gun traffic independent control, and under the atomizing of compressed air
Equably it is injected to high temperature incineration in waste incinerator to handle, and makes ammonia volatilization and caused NO at high temperatureXReaction denitration is anti-
Should；
(5), by the thermocouple 3 and infrared radiation thermometer 4 at the flue entrance of waste heat boiler first, the temperature at this is detected
Value, and carry out contrast verification；According to the numerical value of detection temperature, percolate jet control system, by respectively to A spray guns 1, B spray guns
10th, the injection flow of C spray guns 2 and D spray guns 11 is independently controlled and closed automatically A spray guns 1, B spray guns 10, C spray guns 2 and D
The injection control of spray gun 11.
After percolate spraying is closed automatically, percolate jet control system performs cleaning procedure and passes through water purification automatically
Spray gun is cleaned up；
SNCR control systems are according to the action of percolate jet control system, and the NO in waste heat boiler flue exitX
Sensor 8 and O2The output numerical value of sensor 9, the SNCR injection flows of SNCR gun arrays and the melting concn of ammoniacal liquor are adjusted, directly
To the NO in waste heat boiler flue exitXNumerical value reaches requirement；Complete waste incinerator leachate recycle denitrification process.
Above-mentioned steps (5) are described to pass through the thermocouple 3 and infrared radiation thermometer 4 at the flue entrance of waste heat boiler first, inspection
The temperature value surveyed at this, and carry out contrast verification and be specifically：If temperature value is more than 890 DEG C, leachate recycle flow is volume
Constant flow；If temperature value is 875 DEG C, percolate jet control system performs automatic deloading program, makes returning for percolate
Jet flow amount is reduced to the 2/3 of metered flow；If temperature value drops to 860 DEG C, percolate jet control system performs automatic deloading
Program, the jet flow amount of returning of percolate is set to be reduced to the 1/3 of metered flow；If temperature value continues to drop to 850 DEG C, stop
Percolate returns spray；And when temperature value continues to drop to 830 DEG C, percolate jet control system performs flushing journey automatically
Sequence, after water purification rinses 3 minutes, stop the operation of jet pump；When temperature value goes back up to 850 DEG C, start to perform leachate recycle.
The present invention is had the following advantages and effect relative to prior art：
The present apparatus and method are decomposed generation at high temperature by making full use of the ammonia nitrogen compound in percolate
NH3, and with waste incineration caused by NOXReaction generation N2, so as to reduce NO in a degreeXDischarge；
The mixing match ammoniacal liquor in percolate clear liquid, reduces during high-temperature process percolate
The moisture and compressed air that SNCR denitration system sprays into, ensure that the temperature of boiler furnace, greatly reduce water purification, compression sky
The dosage of gas and electric power；
By detecting the temperature of the flue of waste heat boiler first, change percolate injection flow in real time, ensure that burner hearth
Ignition temperature and waste incineration " 850 DEG C, 2s " requirements, flow is also fed back into SNCR control systems while change, then tied
Close the NO of flue outletXDischarge capacity detects, and the corresponding injection flow for changing SNCR, both can guarantee that NOXDischarge meet the requirement of environmental protection,
And can consumes minimal amount of ammoniacal liquor, water purification, compressed air and electric energy；
Present apparatus price is low, practical, and used method is simple, and meets environmental requirement, can widely make
It is wider for each garbage incinerating power plant, application prospect.
Brief description of the drawings
Fig. 1 is waste incinerator leachate recycle denitrification apparatus and percolate gun array distributing position of the present invention
Front view.
Fig. 2 is waste incinerator leachate recycle denitrification apparatus and percolate gun array distributing position of the present invention
Top view.
Fig. 3 is the process flow diagram of waste incinerator leachate recycle method of denitration of the present invention.
Embodiment
The present invention is more specifically described in detail with reference to specific embodiment.
Embodiment
As shown in Figures 1 to 3.Waste incinerator leachate recycle denitrification apparatus of the present invention, including percolate injection control system
System, SNCR spray gun control systems, the percolate gun array burned on burner hearth wall is arranged on, is arranged on waste heat boiler the
The thermocouple 3 and infrared radiation thermometer 4 of one flue, are arranged on the SNCR gun arrays of the flue of waste heat boiler first, are arranged on waste heat
The NO in boiler flue exitXSensor 8 and O2Sensor 9；
The SNCR spray gun control systems and percolate jet control system, NOXSensor 8 and O2Sensor 9 is connected.
The percolate gun array is made up of 4 spray guns, i.e. A spray guns 1, B spray guns 10, C spray guns 2 and D spray guns 11,
The equal independent control of flow of every spray gun, is highly respectively positioned at the 3/5 of furnace height；In this 4 spray guns, A spray guns 1 and B spray guns
10 be one group, and C spray guns 2 and D spray guns 11 are one group；A spray guns 1 and B spray guns 10, which are respectively symmetrically distributed to be arranged on, burns burner hearth wall
Front wall and rear wall, C spray guns 2 and D spray guns 11, which are respectively symmetrically distributed, is arranged on the front wall for burning burner hearth wall and rear wall.
The A spray guns 1 and B spray guns 10 are located at the top of second level fire grate, and are in 30 °~45 ° with level；C spray guns 2 and D
Spray gun 11 is located at the top of third level fire grate, and is in 50 °~75 ° with level.
The thermocouple 3 and infrared radiation thermometer 4 are arranged at the first flue entrance of waste heat boiler 3m；The He of thermocouple 3
Infrared radiation thermometer 4 distinguishes 4, positioned at the middle part of the first flue of waste heat boiler four sides wall, thermocouple 3 and infrared radiation thermometer 4 it
Between mounting distance difference be no more than 30cm；The temperature value that thermocouple 3 and infrared radiation thermometer 4 are detected feeds back to percolate injection
Control system, the injection flow of each nozzle in percolate gun array is changed by the change of temperature value.
The SNCR gun arrays of the flue of waste heat boiler first, 3 layers are divided into, first layer is arranged on the cigarette of waste heat boiler first
At the 1/3 of road, the second layer is arranged at the 1/2 of the flue of waste heat boiler first, and third layer is arranged on the flue of waste heat boiler first
At 2/3.
The SNCR gun arrays of the flue of waste heat boiler first, 3 layers are divided into, every layer is uniformly distributed 7, i.e., before flue
4, wall, 3, the rear wall of flue；Wherein, the centre of front wall 2 is in being horizontally inserted, and another two with wall in 45 ° of opposite distributions；Afterwards
The centre 1 of wall is in being horizontally inserted, and another two with wall in 45 ° of opposite distributions.
The NOXSensor 8 and O2Sensor 9, it is arranged at waste heat boiler flue outlet 1m；NOXThe He of sensor 8
O2Below mounting distance 30cm between sensor 9.
The method that percolate returns spray denitration can be achieved by the steps of：
(1), percolate caused by heap garbage in MSW Incineration Plant is collected in diafiltration fluid pool；
(2) percolate, is pumped across by coarse filtration and thin mistake from percolate pond by percolate delivery pump
Two-stage filter is filtered, and is delivered in percolate clean solution tank；
(3), percolate is delivered in blender by percolate clean solution tank and carries out mixing match with ammoniacal liquor, makes ammoniacal liquor dense
Degree ratio reduces；
(4), mixed percolate clear liquid is pumped to percolate jet control system, by percolate injection control system
4 spray guns of system distribution percolate gun array, each gun traffic independent control, and under the atomizing of compressed air
Equably it is injected to high temperature incineration in waste incinerator to handle, and makes ammonia volatilization and caused NO at high temperatureXReaction denitration is anti-
Should；
(5), by the thermocouple 3 and infrared radiation thermometer 4 at the flue entrance of waste heat boiler first, the temperature at this is detected
Value, and carry out contrast verification；According to the numerical value of detection temperature, percolate jet control system, by respectively to A spray guns 1, B spray guns
10th, the injection flow of C spray guns 2 and D spray guns 11 is independently controlled and closed automatically A spray guns 1, B spray guns 10, C spray guns 2 and D
The injection control of spray gun 11.
After percolate spraying is closed automatically, percolate jet control system performs cleaning procedure and passes through water purification automatically
Spray gun is cleaned up；
SNCR control systems are according to the action of percolate jet control system, and the NO in waste heat boiler flue exitX
Sensor 8 and O2The output numerical value of sensor 9, the SNCR injection flows of SNCR gun arrays and the melting concn of ammoniacal liquor are adjusted, directly
To the NO in waste heat boiler flue exitXNumerical value reaches requirement；Complete waste incinerator leachate recycle denitrification process.
Above-mentioned steps (5) are described to pass through the thermocouple 3 and infrared radiation thermometer 4 at the flue entrance of waste heat boiler first, inspection
The temperature value surveyed at this, and carry out contrast verification and be specifically：If temperature value is more than 890 DEG C, leachate recycle flow is volume
Constant flow；If temperature value is 875 DEG C, percolate jet control system performs automatic deloading program, makes returning for percolate
Jet flow amount is reduced to the 2/3 of metered flow；If temperature value drops to 860 DEG C, percolate jet control system performs automatic deloading
Program, the jet flow amount of returning of percolate is set to be reduced to the 1/3 of metered flow；If temperature value continues to drop to 850 DEG C, stop
Percolate returns spray；And when temperature value continues to drop to 830 DEG C, percolate jet control system performs flushing journey automatically
Sequence, after water purification rinses 3 minutes, stop the operation of jet pump；When temperature value goes back up to 850 DEG C, start to perform leachate recycle.
As described above, the present invention can be better realized.
Embodiments of the present invention are simultaneously not restricted to the described embodiments, other any Spirit Essences without departing from the present invention
With made under principle change, modification, replacement, combine, simplification, should be equivalent substitute mode, be included in the present invention's
Within protection domain.
Claims (3)
1. a kind of method that percolate returns spray denitration, it is characterised in that including a waste incinerator leachate recycle denitration
Device；
The waste incinerator leachate recycle denitrification apparatus includes：Percolate jet control system, SNCR spray gun control systems, set
The percolate gun array on burner hearth wall is burned is put, is arranged on the thermocouple (3) of the flue of waste heat boiler first and red
Outer temperature measurer (4), is arranged on the SNCR gun arrays of the flue of waste heat boiler first, is arranged on waste heat boiler flue exit
NOXSensor (8) and O2Sensor (9)；
The SNCR spray gun control systems and percolate jet control system, NOXSensor (8) and O2Sensor (9) is connected；
The percolate gun array is made up of 4 spray guns, i.e. A spray guns (1), B spray guns (10), C spray guns (2) and D spray guns
(11), the equal independent control of the flow of every spray gun, is highly respectively positioned at the 3/5 of furnace height；In this 4 spray guns, A spray guns (1)
It it is one group with B spray guns (10), C spray guns (2) and D spray guns (11) are one group；A spray guns (1) and B spray guns (10), which are respectively symmetrically distributed, to be set
Put and burning the front wall of burner hearth wall and rear wall, C spray guns (2) and D spray guns (11), which are respectively symmetrically distributed to be arranged on, burns burner hearth wall
The front wall of body and rear wall；
The thermocouple (3) and infrared radiation thermometer (4) are arranged at the first flue entrance of waste heat boiler 3m；The thermocouple (3)
With infrared radiation thermometer (4) 4 respectively, positioned at the middle part of the first flue of waste heat boiler four sides wall, thermocouple (3) and infrared measurement of temperature
Mounting distance difference between instrument (4) is no more than 30cm；The temperature value feedback that thermocouple (3) and infrared radiation thermometer (4) are detected
To percolate jet control system, the injection of each nozzle in percolate gun array is changed by the change of temperature value
Flow；
The SNCR gun arrays of the flue of waste heat boiler first, 3 layers are divided into, first layer is arranged on the flue of waste heat boiler first
At 1/3, the second layer is arranged at the 1/2 of the flue of waste heat boiler first, and third layer is arranged on the 2/3 of the flue of waste heat boiler first
Place；
The A spray guns (1) and B spray guns (10) are located at the top of second level fire grate, and are in 30 °~45 ° with level；C spray guns (2) and
D spray guns (11) are located at the top of third level fire grate, and are in 50 °~75 ° with level；
The method that the percolate returns spray denitration is as follows：
(1), percolate caused by heap garbage in MSW Incineration Plant is collected in diafiltration fluid pool；
(2) percolate, is pumped across from percolate pond by coarse filtration by percolate delivery pump and carefully filters two
Level filter, and deliver in percolate clean solution tank；
(3), percolate is delivered in blender by percolate clean solution tank and carries out mixing match with ammoniacal liquor, makes ammonia concn ratio
Example reduces；
(4), mixed percolate clear liquid is pumped to percolate jet control system, by percolate jet control system point
4 spray guns with percolate gun array, each gun traffic independent control, and under the atomizing of compressed air uniformly
Ground is injected to high temperature incineration in waste incinerator and handled, and makes ammonia volatilization and caused NO at high temperatureXReaction denitration reacts；
(5), by the thermocouple (3) and infrared radiation thermometer (4) at the flue entrance of waste heat boiler first, the temperature at this is detected
Value, and carry out contrast verification；According to the numerical value of detection temperature, percolate jet control system, A spray guns (1), B will be sprayed respectively
The injection flow of rifle (10), C spray guns (2) and D spray guns (11) is independently controlled and automatic closing A spray guns (1), B spray guns
(10), the injection control of C spray guns (2) and D spray guns (11)；
After percolate spraying is closed automatically, percolate jet control system performs cleaning procedure automatically will be sprayed by water purification
Rifle cleans up；
SNCR control systems are according to the action of percolate jet control system, and the NO in waste heat boiler flue exitXSensor
And O (8)2Sensor (9) output numerical value, the SNCR injection flows of SNCR gun arrays and the melting concn of ammoniacal liquor are adjusted, until
The NO in waste heat boiler flue exitXNumerical value reaches requirement；Complete waste incinerator leachate recycle denitrification process；
Step (5) the contrast verification process is, if temperature value is more than 890 DEG C, leachate recycle flow is metered flow；
If temperature value is 875 DEG C, percolate jet control system performs automatic deloading program, and make percolate returns jet flow amount drop
As little as the 2/3 of metered flow；If temperature value drops to 860 DEG C, percolate jet control system performs automatic deloading program, makes rubbish
The jet flow amount of returning of rubbish percolate is reduced to the 1/3 of metered flow；If temperature value continues to drop to 850 DEG C, stop garbage filter
Liquid returns spray；And when temperature value continues to drop to 830 DEG C, percolate jet control system performs cleaning procedure automatically, water purification
After rinsing 3 minutes, stop the operation of jet pump；When temperature value goes back up to 850 DEG C, start to perform leachate recycle.
2. the method that percolate returns spray denitration according to claim 1, it is characterised in that：The cigarette of waste heat boiler first
The SNCR gun arrays in road, 3 layers are divided into, every layer is uniformly distributed 7, the i.e. front wall of flue 4,3, the rear wall of flue；Wherein,
The centre 2 of front wall is in being horizontally inserted, and another two with wall in 45 ° of opposite distributions；The centre of wall 1 is in being horizontally inserted afterwards, separately
Two with wall in 45 ° of opposite distributions.
3. the method that percolate returns spray denitration according to claim 2, it is characterised in that：The NOXSensor (8) and
O2Sensor (9), it is arranged at waste heat boiler flue outlet 1m；NOXSensor (8) and O2Installation between sensor (9)
Below distance 30cm.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106377991A (en) * | 2016-11-09 | 2017-02-08 | 中国科学院过程工程研究所 | Device and method for removing nitric oxide in smoke gas by landfill leachate |
| CN108911340A (en) * | 2018-08-21 | 2018-11-30 | 中国华能集团清洁能源技术研究院有限公司 | A kind of method and system using SNCR denitration device processing desulfurization wastewater |
| CN109092040A (en) * | 2018-10-09 | 2018-12-28 | 北京高安屯垃圾焚烧有限公司 | The method that garbage burning boiler Leachate site returns spray system and reduces NOx content |
| CN109595558A (en) * | 2018-12-05 | 2019-04-09 | 南通万达锅炉有限公司 | A kind of denitration type garbage burning boiler |
| CN109539264B (en) * | 2018-12-21 | 2024-04-05 | 北京高安屯垃圾焚烧有限公司 | Garbage incineration equipment and garbage incineration method |
| CN110454802A (en) * | 2019-09-05 | 2019-11-15 | 成都市兴蓉再生能源有限公司 | The concentrate for reducing nitrous oxides concentration in furnace enters furnace and returns spray system and return spray method |
| CN110981100A (en) * | 2019-12-18 | 2020-04-10 | 南京凯盛开能环保能源有限公司 | Landfill leachate disposal system and method suitable for cement kiln |
| CN111828987A (en) * | 2020-07-09 | 2020-10-27 | 成都市兴蓉再生能源有限公司 | Switchable urea-concentrated solution spraying system and method for garbage incinerator |
| CN111747474A (en) * | 2020-08-05 | 2020-10-09 | 生态环境部南京环境科学研究所 | Landfill leachate treatment device |
| CN113175678B (en) * | 2021-03-09 | 2023-11-10 | 广州特种承压设备检测研究院 | Garbage incineration monitoring method and device |
| CN113634111A (en) * | 2021-06-23 | 2021-11-12 | 杭州新世纪能源环保工程股份有限公司 | Efficient denitration injection apparatus in waste incineration exhaust-heat boiler stove |
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| CN101209881B (en) * | 2006-12-28 | 2010-07-14 | 深圳市能源环保有限公司 | System for processing leachate of garbage burning factory |
| JP5780806B2 (en) * | 2011-03-31 | 2015-09-16 | 株式会社クボタ | Sludge incineration treatment system and sludge incineration treatment method |
| CN202158567U (en) * | 2011-06-28 | 2012-03-07 | 光大环保能源（苏州）有限公司 | Percolate return-spraying system |
| CN203899439U (en) * | 2014-01-13 | 2014-10-29 | 广东清华中邦热能科技有限公司 | Novel SNCR (selective non-catalytic reduction) denitration system |
| CN104001420B (en) * | 2014-06-09 | 2016-01-20 | 盐城工学院 | The control method of a kind of flue gas SNCR denitration control device and use thereof |
| CN204324930U (en) * | 2014-12-19 | 2015-05-13 | 南通天蓝环保能源成套设备有限公司 | Consumer waste infiltration liquid concentrates back spray system |
| CN205048454U (en) * | 2015-09-30 | 2016-02-24 | 华南理工大学 | Waste incinerator filtration liquid returns and spouts denitrification facility |
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