CN209206021U - A kind of stabilisation curing process system of incineration of refuse flyash - Google Patents
A kind of stabilisation curing process system of incineration of refuse flyash Download PDFInfo
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- CN209206021U CN209206021U CN201821995880.0U CN201821995880U CN209206021U CN 209206021 U CN209206021 U CN 209206021U CN 201821995880 U CN201821995880 U CN 201821995880U CN 209206021 U CN209206021 U CN 209206021U
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Abstract
The utility model relates to a kind of stabilisation curing process systems of incineration of refuse flyash, including flying dust metering units, cement-weighting unit, chelating agent metering units, detection addition control unit, unit is stabilized, the flying dust metering units, cement-weighting unit, chelating agent metering units are connected to stabilisation unit；The detection addition control unit includes online detection module and control module.The utility model uses on-line checking module, can each element content in real-time detection every batch of flying dust, the accurate physicochemical property for grasping every batch of flying dust is conducive to the stabilisation curing process for instructing flying dust；In addition, carrying out the accurate adjustment control of cement, chelating agent additive amount for the physicochemical property of every batch of flying dust, the cured treatment effect of stabilizing fly ashization can be greatly improved, it is advantageously ensured that meeting environmental protection standard requirement after flying dust processing.
Description
Technical field
The utility model belongs to field of environment engineering technology, is related to a kind of stabilisation curing process system of incineration of refuse flyash
System.
Background technique
Counted according in July, 2018, the garbage incinerating power plant that has put into operation of the whole nation reaches 359, year garbage treatment quantity
More than 1.05 hundred million tons, the yield of incineration of refuse flyash has reached 3,200,000 tons, and according to national policy, standard criterion, waste incineration
Flying dust belongs to hazardous waste, and need to carry out stabilizing after curing process reaches relevant criterion can fill out into household refuse landfill sites subregion
It buries.But since landfill facility digestion capability is insufficient, specification cost of disposal is high, enterprise operation thinks little of, supervises seriously disconnection etc.
Reason becomes waste incineration facility fortune so that the illegal phenomenon such as incineration of refuse flyash disposition lack of standardization, any violation discharge is more
Capable weak link.But the physicochemical property of incineration of refuse flyash is influenced by location, Various Seasonal etc., difference is big, fluctuates
Property it is strong, if being handled in such a way that the chelating agent adding proportion that generallys use at present is fixed, first is that containing in fly-ash heavy metal
The waste that will lead to flying dust processing chelating agent when measuring lower, increases processing cost, second is that will when fly-ash heavy metal content is higher
Cause flying dust processing that relevant standard is not achieved, causes adverse effect to environment.Existing fly-ash heavy metal detection method is main
Including atomic absorption spectrography (AAS) (AAS), atomic emission spectrometry (AES), atomic fluorescence spectrometry (AFS), inductive coupling etc. from
Daughter mass spectrum (ICP-MS), UV-VIS spectrophotometry (UV-Vis) etc..Such methods detect heavy metal in the lab and contain
Amount has played important function, measuring accuracy with higher, but needs complicated sample pretreatment process, sampling-sample preparation-inspection
The survey overall process period is longer, cannot achieve the quick in situ measurement at operation scene.And X fluorescence spectrometer (XRF), induced with laser etc.
Emission spectrometer (LIBS) is detected in related fieldss such as power plant's raw coal, flying dust and environmental protection for the real-time online of element.
Patent CN201810067499.6 discloses a kind of using various heavy content in XRF instrument quantitative measurement flying dust
Method；Patent CN108246770A discloses a kind of use of stabilizing fly ash chelating agent dosing system based on XRF detection
Method is measured in real time every batch of flying dust Pb total amount using XRF, is divided into five class of A1-A5 according to flying dust Pb total amount,
It determines five grades of M1-M5 different chelating agent adding proportions, is compared by logic and realize stabilizing fly ash curing process chelating agent
Fining adds, but does not account for influence to stabilizing fly ash treatment effect of other elements such as Cd, Ca, Zn in flying dust, do not have
Relevant function model is established, there are biggish limitations for instructing chelating agent adding proportion；Application number CN106862235A
Utility model patent disclose a kind of on-line checking heavy metal solid waste method for innocent treatment, but the patent cannot be straight
Connect monitoring solid in content of beary metal, after being extracted monitor aqueous phase solution in heavy metal ion content, need into
The complicated water logging of row or acidleach pre-treating technology, and be not implemented and automatically control.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of stabilisation curing process system of incineration of refuse flyash
System, one of its goals is to meet different regions, Various Seasonal, physicochemical property significant difference incineration of refuse flyash accurate place
Reason.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is as follows:
A kind of stabilisation curing process system of incineration of refuse flyash, including flying dust metering units, cement-weighting unit, chela
Mixture metering units, stabilize unit, the flying dust metering units, cement-weighting unit, chelating agent at detection addition control unit
Metering units are connected to stabilisation unit；
Control unit is added in the detection
On-line checking module, for detecting in flying dust metering units each contents of heavy metal elements in incineration of refuse flyash；With
Control module, the data-signal for receiving and processing on-line checking module and flying dust metering units transmit, then root
According to data processed result control cement-weighting unit, chelating agent metering units, to unit is stabilized, according to target additive amount is quantitative respectively
Administration.
On-line checking module can with real-time online detect flying dust in calcium (Ca), cadmium (Cd), lead (Pb), nickel (Ni), copper (Cu),
The content of the elements such as zinc (Zn), chromium (Cr), barium (Ba), arsenic (As), mercury (Hg)；Generally, the detection range of each element, calcium (Ca)
It is 1 × 104~40 × 104Mg/kg, cadmium (Cd) are 50~1000mg/kg, lead (Pb) is 50~5000mg/kg, and nickel (Ni) is 50
~5000mg/kg, copper (Cu) are 50~5000mg/kg, zinc (Zn) is 50~10000mg/kg, chromium (Cr) is 50~5000mg/
Kg, barium (Ba) are 50~5000mg/kg, arsenic (As) is 50~1000mg/kg, mercury (Hg) is 50~1000mg/kg；Further
Ground, the detection error of each element are not more than 20%, and the period detected every time is 30~60 seconds.Control module receives and processes online
Data-signal that detection module and flying dust metering units transmit (including each contents of heavy metal elements data and to be processed fly in flying dust
The qualitative data of ash), controlling cement-weighting unit further according to data processed result, according to target additive amount is quantitative to unit is stabilized
Add cement, and control chelating agent metering units to stabilize unit according to target additive amount quantitatively add chelating agent, to flying dust reality
Now precisely processing, advantageously reduces processing cost, and guarantee treatment effect.
Further, as Ca content C in handled incineration of refuse flyashCaWhen > 12wt%, the leaching concentration L of i elementi
=a × CCa+b×Ci+ c, target additive amount P=m × (∑ L of chelating agenti)n, the target additive amount of cement is 0, wherein a, b, c,
M, the value range of n is respectively 0.5~0.7,0~0.01, -6~-0.1,0.013~0.024,0.20~0.38；When handled
Incineration of refuse flyash in Ca content CCaWhen < 12wt%, the leaching concentration of i element is Li=e × CCa+f×Ci+ g, chelating agent
Target additive amount P=s × (∑ Li)t, the target additive amount P of cementc=2 × (12-CCa) %, i be selected from Cd, Pb, Ni, Cu, Zn,
Cr, Ba, As, Hg, wherein the value range of e, f, g, s, t be respectively -0.3~-0.5,0.003~0.01, -6~20,0.01~
0.025,0.20~0.40；CiFor the content of i element in handled incineration of refuse flyash, ∑ Li=LPb+LCd+LNi+LCu+LZn+
LCr+LBa+LAs+LHg。
Optionally, the chelating agent is dimethyl amine organic sulfur chelating agent；Optionally, the cement is normal silicate class
Cement meets GB175-2007.Above-mentioned function model can be embedded in control module, be calculated in conjunction with flying dust qualitative data to be processed
Chelating agent, the cement, technique water quality that respective batch stabilizing fly ashization is added needed for solidifying.
Further, the flying dust metering units include the flying dust warehouse, screw(-type) feeder and flying dust quality being sequentially communicated
Measuring chute, the discharge port in flying dust mass metrology storehouse are connected to unit is stabilized, and the on-line checking module is set to screw feeder
Between machine and flying dust mass metrology storehouse, flying dust mass metrology storehouse passes the flying dust qualitative data added in stabilisation unit
It is defeated by control module, optionally, the control section in flying dust mass metrology storehouse communicates to connect or is electrically connected with control module.
The processing in batches of incineration of refuse flyash can be realized by flying dust mass metrology storehouse, it is preferable that every batch of is to be processed
The quality of incineration of refuse flyash is 800-1000ka.In addition, flying dust mass metrology storehouse can directly stabilize investment in unit
The qualitative data of incineration of refuse flyash is transferred to control module, and control module combines this data, can obtain specific required cement
The data of amount, chelating dosage.
Further, the on-line checking module includes detecting instrument, and the detecting instrument is X fluorescence spectrometer (XRF)
Or Laser induced plasma spectroscopy instrument (LIBS).
Further, the cement-weighting unit includes the cement storage bin being sequentially communicated and cement quality measuring chute, described
The discharge port of cement quality measuring chute is connected to unit is stabilized, and the cement quality measuring chute receives the water that control module issues
Mud adds instruction and adds cement to unit is stabilized by the instruction, optionally, the control section of the cement quality measuring chute
It communicates to connect or is electrically connected with control module.Cement quality measuring chute can receive the cement target additive amount number of control module output
It is believed that number, cement is quantitatively added by this.
Further, the chelating agent metering units include chelating agent storage tank, meter and the solution measures being sequentially communicated
Tank, the liquid outlet of the solution measures tank are connected to unit is stabilized, and meter receives the chelating agent that control module issues and adds
Instruct and add chelating agent to solution measures tank by the instruction, optionally, the control section of meter and control module communication link
It connects or is electrically connected；It further include the process water feeder being connected to solution measures tank, technique water controller receives control module and issues
Process water add instruct and add process water to solution measures tank by the instruction, optionally, the control of the process water feeder
System part communicates to connect or is electrically connected with control module.Solution measures tank is mainly used for the mixing of chelating agent and process water；Metering
Device receives the chelating agent target additive amount data-signal of the processing of the control module output part incineration of refuse flyash, quantitatively adds
Chelating agent.Process water target needed for the control section of process water feeder receives the processing of the control module output batch flying dust
Additive amount data, quantitative adding technology water.
Further, the meter is flow measurement pump；The process water feeder is technique Water flow control valve.
Further, it is equipped with pump between the solution measures tank and stabilisation unit, facilitates the addition of chelating agent solution.
Further, the unit that stabilizes includes the stabilizing fly ashization solidification kneading machine and flying dust jumbo bag packet being sequentially communicated
Installation.
Generally, the additive amount of chelating agent is the 0.1-10% of incineration of refuse flyash quality to be processed, process water additive amount
For the 35-45% of incineration of refuse flyash quality to be processed.
Conceived based on same utility model, the utility model also provides a kind of stabilisation curing process of incineration of refuse flyash
Method is carried out using processing system as described above, is included the following steps:
Ca content C in S1, detection incineration of refuse flyash to be processedCaWith other each contents of heavy metal elements Ci, wherein i choosing
From Cd, Pb, Ni, Cu, Zn, Cr, Ba, As, Hg；
S2, work as CCaWhen > 12wt%, the target additive amount P for obtaining chelating agent is calculated according to the following formula,
The leaching concentration L of i elementi=a × CCa+b×Ci+ c, P=m × (∑ Li)n；
Work as CCaWhen < 12wt%, the target for calculating the target additive amount P and cement that obtain chelating agent according to the following formula adds
Dosage Pc,
The leaching concentration of i element is Li=e × CCa+f×Ci+ g, P=s × (∑ Li)t, Pc=2 × (12-CCa) %；
Wherein, ∑ Li=LPb+LCd+LNi+LCu+LZn+LCr+LBa+LAs+LHg, a, b, c, e, f, g, m, n, s, t are constant；
S3, the calculated result according to S2 add chelating agent, cement into incineration of refuse flyash to be processed, are stabilized
Processing.
Compared with prior art, the beneficial effects of the utility model are as follows:
(1) use on-line checking module, can each element content in real-time detection every batch of flying dust, accurate grasp
The physicochemical property of every batch of flying dust is conducive to the stabilisation curing process for instructing flying dust, realizes accurate, efficient process.
(2) the polynomial function model of reflection flying dust each element content and its toxicity leaching concentration relationship, reflection are established
The power exponential function model of flying dust each element Leaching concentration and cement, chelating agent adding proportion relationship, can adapt to difference
The variation in area, Various Seasonal incineration of refuse flyash physicochemical property, precisely adjustment controls the additive amount of chelating agent, cement, favorably
In reduction stabilizing fly ash curing process cost.
(3) the accurate adjustment control of cement, chelating agent additive amount, Neng Gou great are carried out for the physicochemical property of every batch of flying dust
Width improves the cured treatment effect of stabilizing fly ashization, it is advantageously ensured that meeting environmental protection standard requirement after flying dust processing.
Detailed description of the invention
Fig. 1 is the building-block of logic of the processing system of the utility model the first embodiment.
Fig. 2 is the flow direction of material and control structure schematic diagram of the processing system of the utility model the first embodiment.
Specific embodiment
The utility model is further described with reference to embodiments: applying processing system described in the utility model
High lead cadmium content incineration of refuse flyash is handled, the Leaching concentration of lead cadmium in flying dust can be significantly reduced, reaches project institute really
Fixed management goal requirement.
Embodiment 1
A kind of stabilisation curing process system of incineration of refuse flyash, including flying dust metering units 100, cement-weighting unit
200, chelating agent metering units 300, detection addition control unit 400, stabilisation unit 500, the flying dust metering units 100,
Cement-weighting unit 200, chelating agent metering units 300 are connected to stabilisation unit 500；
Control unit 400 is added in the detection
On-line checking module 401, for detecting in flying dust metering units each contents of heavy metal elements in incineration of refuse flyash；
With
Control module (402) uses Siemens S7-300 PLC control cabinet, for receiving and processing on-line checking module and flying
The data-signal that grey metering units transmit, further according to data processed result control cement-weighting unit, chelating agent metering units point
Not to stabilizing unit according to target additive amount dosed administration.
The flying dust metering units 100 include flying dust warehouse 101, screw(-type) feeder 102 and the flying dust quality being sequentially communicated
Measuring chute 103 (is equipped with the Weighing module WMS1501C- of Meiteler-Toliduo's production
LX), the discharge port in flying dust mass metrology storehouse 103 is connected to unit 500 is stabilized, and the on-line checking module 401 is set to spiral shell
Revolve between batcher and flying dust mass metrology storehouse, the control section in flying dust mass metrology storehouse and control module communicate to connect or
Electrical connection.
The on-line checking module 401 includes detecting instrument, and the detecting instrument is Laser induced plasma spectroscopy instrument.
The cement-weighting unit 200 includes that the cement storage bin 201 being sequentially communicated and cement quality measuring chute 202 (are equipped with plum Teller-
Hold in the palm the Weighing module WMS402C-LX of benefit (Changzhou) Weight Equipment System Co., Ltd production)), the cement quality measuring chute
Discharge port be connected to unit is stabilized, the control section of the cement quality measuring chute and control module communication connection or be electrically connected
It connects.The chelating agent metering units 300 include the chelating agent storage tank 301 being sequentially communicated, the production of Changzhou Xin Wang finite instrument company
Teletransmission type electromagnetic type meter 302 and solution measures tank 304, the liquid outlet of the solution measures tank are connected to unit is stabilized,
The control section of meter communicates to connect or is electrically connected with control module；It further include the process water supply being connected to solution measures tank
The control section of device 303, the process water feeder communicates to connect or is electrically connected with control module.The solution measures tank 304
And it stabilizes and is equipped with pump 305 between unit.The unit that stabilizes includes that Zhuhai Shi Gaoma mechanical equipment for being sequentially communicated is limited
The stabilizing fly ashization of company's production solidifies the flying dust jumbo bag packing machine of kneading machine 501 and the production of Zhong Kekezheng Automation Engineering Company
502。
It is stabilized by incineration of refuse flyash described in the utility model and solidifies accurate efficient process system, Hengyang rubbish is sent out
Flying ash in electric power plant is handled.The flying dust amount that flying dust metering units 100 control every batch of processing is 1000kg, and flying dust is given by spiral
Material machine 102 enters flying dust mass metrology storehouse 103 from flying dust warehouse 101, solid subsequently into the stabilizing fly ashization for stabilizing unit 500
Change in kneading machine 501, is packaged after processing by flying dust jumbo bag packing machine 502, guarantees the uniformity of flying dust.On-line measuring device peace
Between batcher and measuring chute.
Laser induced plasma spectroscopy instrument (LIBS) detection is used to obtain the calcium content of first batch flying dust as 16.0%,
Lead content is 1165mg/kg and other content of beary metal data.The calcium content data that on-line checking module 202 obtains are automatic
The control module 402 of input detection addition control unit 400, since calcium content is higher than 12%, calculated result cement dosage is
0, the control section of the cement quality measuring chute 202 in cement-weighting unit 200 receives instruction and does not add cement.Calcium content and lead
Content data automatically enters the control module of detection addition control unit 400, according to the Leaching of Heavy Metals concentration in control module
Calculating formula Li=0.511 × CCa+0.00087×Ci- 6, wherein LiFor heavy metal leaching concentration (mg/L), CCaFor calcium content
(mg/kg), CiFor content of beary metal (mg/kg).Be calculated Pb leaching concentration be 3.19mg/L, Cd, As, Ba, Cr, Cu, Ni,
Zn, Hg are to be not detected, and are -0.59%~4.7% with actually detected error range.The data automatically enter computation model∑LiFor the sum of Pb, Cd, As, Ba, Cr, Cu, Ni, Zn, Hg heavy metal concentration, the batch is calculated
Medicament adding proportion be the 2.50% of flying dust to be processed, process water adding proportion is 40% (fixed adding proportion).The data
Chelating agent metering units 300 are automatically entered, meter 302 receives the data of medicament ratio 2.5%, according to flying dust quality to be processed
1000kg, calculating decentralization to the pharmacy quality for stabilizing unit 500 is 25kg, and process water feeder 303 receives process water addition
The data of ratio 40%, then transferring to the technique water quality for stabilizing unit 500 is 400kg.Fly after final stabilization processes
For ash after maintenance 2-3 days, the leaching concentration detection of Pb is below " household refuse landfill sites contamination control standard " GB16889-
2008 standard limited value 0.25mg/L.Illustrate to can effectively ensure that treated using Online Processing System fly-ash heavy metal concentration
Leaching concentration is up to standard.
After the accurate efficient process system of the solidification is run one month, calcium content and lead content change, and detect resulting
Calcium content is respectively 12.5%, and detecting resulting lead content is respectively 909mg/kg.Calcium content data automatically enter detection addition
The cement adding proportion calculation control module of control unit 400, since calcium content is higher than 12%, calculated result cement dosage is
0, the cement-weighting storehouse in cement-weighting unit 200 receives instruction and does not add cement.Calcium content and lead content data automatically enter
The medicament adding proportion calculation control module of detection addition control unit 400, according to the Leaching of Heavy Metals concentration in control system
Calculating formula Li=0.511 × CCa+0.00087×Ci- 6, wherein LiFor heavy metal leaching concentration (mg/L), CCaFor calcium content
(mg/kg), CiFor content of beary metal (mg/kg).Be calculated Pb leaching concentration be 1.18mg/L, Cd, As, Ba, Cr, Cu, Ni,
Zn, Hg are to be not detected, and are -0.67%~5.2% with actually detected error range.The data automatically enter computation model∑LiFor the sum of Pb, Cd, As, Ba, Cr, Cu, Ni, Zn, Hg heavy metal concentration, the batch is calculated
Medicament adding proportion be 1.8%, process water adding proportion be 40%.The data automatically enter chelating agent metering units 300, meter
302 control section of measuring device receives the data that medicament ratio is 1.8%, according to flying dust quality 1000kg to be processed, calculates decentralization extremely
The pharmacy quality for stabilizing unit 500 is 18kg, and the control section of process water feeder 303 receives process water adding proportion 40%
Data, then transfer to stabilize unit 500 technique water quality be 400kg.Flying dust after final stabilization processes is by supporting
For shield after 2-3 days, the leaching concentration detection of Pb is below the mark of " household refuse landfill sites contamination control standard " GB16889-2008
Quasi- limit value 0.25mg/L.Illustrate using system can real-time online regulation stabilizer adding proportion, guarantee treated flying dust weight
Metal concentration leaching concentration is up to standard, and can save cost.
Table 1Pb element on-line checking and processing situation up to standard
Embodiment 2:
It is stabilized by incineration of refuse flyash described in the utility model and solidifies accurate efficient process system, to Shanghai rubbish
Power plant flying dust is handled.The flying dust amount that flying dust metering units 100 control every batch of processing is 1000kg, and flying dust passes through spiral
Batcher enters stabilisation solidification stirring system, guarantees the uniformity of flying dust.On-line measuring device is mounted on batcher and metering
Between storehouse.
The calcium, lead and cadmium content point of first batch flying dust are obtained using Laser induced plasma spectroscopy instrument (LIBS) detection
Not Wei 10.8%, 2191mg/kg, 260mg/kg and other content of beary metal data.Calcium content data automatically enter detection and add
The cement adding proportion calculation control module for adding control unit 400, since calcium content is lower than 12%, according to model Pc=2 ×
(12-CCa) %, cement additive amount is 2.4%.Cement-weighting unit 200 receives instruction and is kneaded to the solidification for stabilizing unit 500
2.4% cement is added in machine.Calcium content and lead content data automatically enter the medicament addition ratio of detection addition control unit 400
Example calculation control module, according to the calculating formula L of the Leaching of Heavy Metals concentration in control systemi=-0.06 × CCa+0.005×Ci+
0.52, it is 10.83mg/L that Pb leaching concentration, which is calculated, according to the calculating formula L of the Cd leaching concentration in control uniti=-
0.416×CCa+0.037×Ci- 0.11, it is 5.02mg/L that Cd leaching concentration, which is calculated, other Leaching of Heavy Metals concentration do not surpass
Mark.It is -12.3%~13.0% with actually detected error range.The data series automatically enter computation model Pi=0.0127 ×
∑Li 0.3985, ∑ LiFor the sum of Pb, Cd, As, Ba, Cr, Cu, Ni, Zn, Hg heavy metal concentration, the medicament addition of the batch is calculated
Ratio is 3.8%, and process water adding proportion is 40%.The data automatically enter chelating agent metering units 300, the control of meter
Part receives the data of medicament ratio 3.8%, and calculating decentralization to the pharmacy quality for stabilizing unit 500 is 38kg, and process water supplies
The data of process water adding proportion 40% are received to the control section of device, then are transferred to the technique water quality for stabilizing unit 500
For 400kg.For flying dust after final stabilization processes after maintenance 2-3 days, the leaching concentration detection of Pb is below " house refuse
Landfill yard contamination control standard " GB16889-2008 standard limited value 0.25mg/L.Illustrate can have using Online Processing System
Effect guarantees that the leaching of treated fly-ash heavy metal concentration reaches standard.
After running a period of time, the constituent content in flying dust changes.Using Laser induced plasma spectroscopy instrument
(LIBS) it is respectively 7.1%, 2973.5mg/kg, 200mg/kg and other huge sum of moneys that detection, which obtains the calcium, lead and cadmium content of flying dust,
Belong to content data.Calcium content data automatically enter the cement adding proportion calculation control module of detection addition control unit 400, by
It is lower than 12% in calcium content, according to model Pc=2 × (12-CCa) %, cement additive amount is 9.8wt%.Cement-weighting unit 200
It receives instruction and adds the cement of 9.8wt% in kneading machine to solidifying for unit 500 is stabilized.Calcium content and lead content data are automatic
Input detection addition control unit 400, control module is according to the calculating formula L of Pb leaching concentrationi=-0.06 × CCa+0.005×Ci
+ 0.52, it is 14.96mg/L that Pb leaching concentration, which is calculated, according to the calculating formula L of Cd leaching concentrationi=-0.416 × CCa+
0.037×Ci- 0.11, it is 4.34mg/L that Cd leaching concentration, which is calculated, other Leaching of Heavy Metals concentration are not exceeded.With practical inspection
Surveying error range is -11.5%~13.5%.The data series automatically enter computation model Pi=0.0127 × ∑ Li 0.3985, ∑
LiFor the sum of Pb, Cd, As, Ba, Cr, Cu, Ni, Zn, Hg heavy metal concentration, the medicament adding proportion for calculating the batch is
4.13%, process water adding proportion is 40%.The data automatically enter chelating agent metering units 300, the control unit of meter 302
Tap receives the data of medicament ratio 4.13%, and calculating decentralization to the pharmacy quality for stabilizing unit 500 is 41.3kg, and process water supplies
The data of process water adding proportion 40% are received to device, then transferring to the technique water quality for stabilizing unit 500 is 400kg.Most
For flying dust after whole stabilization processes after maintenance 2-3 days, the leaching concentration detection of Pb and Cd are below " household refuse landfill sites
Contamination control standard " GB16889-2008 standard limited value 0.25mg/L, 0.15mg/L.Illustrate first in flying dust using the system
Element when changing can real-time monitoring medicament and cement adding proportion, being effectively ensured that treated, fly-ash heavy metal concentration leaches
It is up to standard.
The accurate efficient process system treatment effect of table 2
Flying dust metering units are controlled per a batch of flying dust about 800-1000kg, and blender continuous work, Weighing system waits for
After preceding a batch flying dust stirring, discharging second batch flying dust to blender, while being discharged into chelating agent or cement.When on-line checking mould
When the continuous two batches flying dust Ca and As, Ba, Cr, Cu, Ni, Zn, Hg content that block measures do not have significant change, detection addition control is single
Member continues set chelating agent proportion, when significant change occur in continuous two batches flying dust Ca and As, Ba, Cr, Cu, Ni, Zn, Hg content
When, logical operation of the data through computer software after the variation that detection addition control unit is measured according to on-line checking module is real
When adjustment chelating agent proportion, guarantee that flying dust processing is up to standard while can also save processing cost.
To sum up, the processing system of the utility model can adapt to different regions, Various Seasonal, physicochemical property significant difference
The processing requirement of incineration of refuse flyash realizes efficient, the accurate processing of incineration of refuse flyash.
The content that above-described embodiment illustrates should be understood as that these embodiments are only used for being illustrated more clearly that the utility model,
Rather than limitation the scope of the utility model, after having read the utility model, those skilled in the art are practical new to this
The modification of the various equivalent forms of type each falls within the application range as defined in the appended claims.
Claims (7)
1. a kind of stabilisation curing process system of incineration of refuse flyash, which is characterized in that including flying dust metering units (100),
Cement-weighting unit (200), detection addition control unit (400), stabilizes unit (500) at chelating agent metering units (300),
The flying dust metering units (100), cement-weighting unit (200), chelating agent metering units (300) with stabilize unit
(500) it is connected to；
Control unit (400) are added in the detection
On-line checking module (401), for detecting in flying dust metering units each contents of heavy metal elements in incineration of refuse flyash；With
Control module (402), the data-signal for receiving and processing on-line checking module and flying dust metering units transmit, then root
According to data processed result control cement-weighting unit, chelating agent metering units, to unit is stabilized, according to target additive amount is quantitative respectively
Administration.
2. processing system according to claim 1, which is characterized in that the flying dust metering units (100) include successively connecting
Logical flying dust warehouse (101), screw(-type) feeder (102) and flying dust mass metrology storehouse (103), flying dust mass metrology storehouse (103)
Discharge port is connected to unit (500) are stabilized, and the on-line checking module (401) includes detecting instrument, and the detecting instrument is set
It is placed between screw(-type) feeder and flying dust mass metrology storehouse, flying dust mass metrology storehouse, which will add in stabilisation unit, to fly
Grey qualitative data is transferred to control module.
3. processing system according to claim 2, which is characterized in that the detecting instrument is X fluorescence spectrometer or laser
Induced plasma spectrometer.
4. processing system according to claim 1, which is characterized in that the cement-weighting unit (200) includes successively connecting
Logical cement storage bin (201) and cement quality measuring chute (202), the discharge port and stabilisation unit of the cement quality measuring chute
Connection, the cement quality measuring chute receive the cement that control module issues and add instruction and throw by the instruction to unit is stabilized
Add cement.
5. processing system according to claim 1, which is characterized in that the chelating agent metering units (300) include successively
Chelating agent storage tank (301), meter (302) and the solution measures tank (304) of connection, the liquid outlet of the solution measures tank and steady
Surely change unit connection, meter receives the chelating agent that control module issues and adds instruction and add by the instruction to solution measures tank
Chelating agent；It further include the process water feeder (303) being connected to solution measures tank, technique water controller receives control module and issues
Process water add instruct and add process water to solution measures tank by the instruction.
6. processing system according to claim 5, which is characterized in that the solution measures tank (304) and stabilisation unit
Between be equipped with pump (305).
7. processing system according to claim 1-6, which is characterized in that the stabilisation unit includes successively connecting
Logical stabilizing fly ashization solidification kneading machine (501) and flying dust jumbo bag packing machine (502).
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109277402A (en) * | 2018-11-30 | 2019-01-29 | 永清环保股份有限公司 | A kind of the stabilisation curing process system and processing method of incineration of refuse flyash |
| CN113843255A (en) * | 2021-09-13 | 2021-12-28 | 生态环境部华南环境科学研究所 | Sectional type stabilization treatment method and system for household garbage incineration fly ash |
| CN115120924A (en) * | 2022-06-28 | 2022-09-30 | 重庆新离子环境科技有限公司 | Intelligent preparation system for household garbage incineration fly ash chelating agent |
-
2018
- 2018-11-30 CN CN201821995880.0U patent/CN209206021U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109277402A (en) * | 2018-11-30 | 2019-01-29 | 永清环保股份有限公司 | A kind of the stabilisation curing process system and processing method of incineration of refuse flyash |
| CN109277402B (en) * | 2018-11-30 | 2023-11-07 | 永清环保股份有限公司 | Stabilization and solidification treatment system and treatment method for waste incineration fly ash |
| CN113843255A (en) * | 2021-09-13 | 2021-12-28 | 生态环境部华南环境科学研究所 | Sectional type stabilization treatment method and system for household garbage incineration fly ash |
| CN113843255B (en) * | 2021-09-13 | 2023-10-27 | 生态环境部华南环境科学研究所 | Sectional type stabilization treatment method and system for household garbage incineration fly ash |
| CN115120924A (en) * | 2022-06-28 | 2022-09-30 | 重庆新离子环境科技有限公司 | Intelligent preparation system for household garbage incineration fly ash chelating agent |
| CN115120924B (en) * | 2022-06-28 | 2023-11-10 | 重庆新离子环境科技有限公司 | Intelligent preparation system for household garbage incineration fly ash chelating agent |
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