CN108405549A - The method and device of refuse landfill fouling and clogging is prevented using clinker and landfill gas - Google Patents

The method and device of refuse landfill fouling and clogging is prevented using clinker and landfill gas Download PDF

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Publication number
CN108405549A
CN108405549A CN201810108187.5A CN201810108187A CN108405549A CN 108405549 A CN108405549 A CN 108405549A CN 201810108187 A CN201810108187 A CN 201810108187A CN 108405549 A CN108405549 A CN 108405549A
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China
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clinker
landfill
gas
fouling
processing
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CN201810108187.5A
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CN108405549B (en
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徐期勇
王前
邵明帅
吴华南
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Peking University Shenzhen Graduate School
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Peking University Shenzhen Graduate School
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE
    • B09B1/00—Dumping solid waste
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE
    • B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/30—Landfill technologies aiming to mitigate methane emissions

Abstract

The invention discloses a kind of methods preventing refuse landfill fouling and clogging using clinker and landfill gas, include the following steps：1) is interior to handling by clinker discharging, between closed processes；2) landfill gas is reacted with clinker；3) detects CO in the gas of gas outlet2When concentration is less than 20%, the landfill gas after reaction is collected；4) transports the clinker after reaction to landfill yard and fills.Also disclose the device for the prevention refuse landfill fouling and clogging for realizing the above method, including between processing, discharge gate, air inlet, gas outlet and clinker discharge port, gas monitor is set at the gas outlet, bottom between the processing is laid with landfill gas admission line, and the air inlet is arranged on the admission line.It solves the problems, such as clinker and the mixed fouling and clogging filled out of house refuse, improves CO2Removal efficiency, purify landfill gas quality, improve utilization of LFG efficiency, be carried out at the same time the processing of dregs of incinerator recycling.

Description

The method and device of refuse landfill fouling and clogging is prevented using clinker and landfill gas
Technical field
The present invention relates to technical field of waste treatment, and in particular to waste incineration by-product-clinker and refuse landfill The combination of by-product-landfill gas is handled, and the method and device of refuse landfill fouling and clogging is prevented.
Background technology
The current landfill gas yield in China is big, and landfill gas refers in refuse landfill since microbial activities and other factors are produced The complicated mixed gases of raw composition, main component CH4And CO2, micro constitutent includes H2O、H2S、N2Deng.Wherein CH4It accounts for 50-65%, CO2Account for 30-40%.CH4With higher calorific value (35.9MJ/m3), a kind of New Regenerated energy is can be used as, is used for Power generation, production regenerative resource and cogeneration of heat and power etc..But main impurity component CO in landfill gas2It can greatly reduce and fill out Bury the calorific value of gas, therefore CO2Removal the relative density of landfill gas after purification can be made to reduce, CH4Concentration greatly improve, calorific value Increase, the quality of landfill gas improves, and landfill gas is made to reach as the requirement of the standard of high-quality natural gas power or motor vehicle fuel.Therefore Landfill gas purification technique is a step of key, essential purification process before being comprehensive utilization landfill gas.It answers at present With more CO2Technique is removed mainly including physically or chemically absorption technique, pressure-variable adsorption, UF membrane and deep cooling process for separating. If pressure swing adsorption purge is efficient, investment and operating cost are excessively high, and program is complicated, though washing process is easy to operate, but need Consume great lot of water resources.
Due to taking up little area, handling the feature that solid waste is efficient, quick, developed recently is rapid for waste incineration.It is same with this When, waste incineration produces a large amount of by-products, including clinker and flying dust.Wherein clinker, which accounts for, burns the 80% of by-product total amount.Rubbish Rubbish dregs of incinerator refers to remaining residue and the fine ash fallen from fire grate on fire grate in Refuse Incineration Process.One can be regarded As solid waste be disposed.Domestic waste incineration amount is more than 219080t/d at present, is to burn rubbish according to flying ash amount Rubbish amount 16% calculates, and annual waste incineration will generate 12,790,000 tons of clinker.One that the processing and disposition of clinker also become at present is big Technological difficulties.
Compared to the development that domestic garbage resource utilizes, waste incineration slag recycling development process is slow.Due to day Clinker yield that benefit increases and limited recycling there are huge contradiction, currently, China's major part clinker be still directly into Enter household refuse landfill sites to be disposed.《Household refuse landfill sites contamination control standard》(GBI6889 --- 2008) it points out to give birth to Waste incineration slag living can be directly entered household refuse landfill sites and carry out landfill stabilization.Ca is main element in clinker, is accounted for The percentage of metal element content can reach 50-60% in clinker.Once the waste of these rich calciums enters landfill yard, this A little compounds can be released in liquid phase, then enter percolate in the form of an ion.Finally, under certain condition, Ca2+Gradually The deposition tamper for depositing and being formed calcium causes the fouling and blocking of geomembrane and pipe-line system, the leachate level of landfill yard It can constantly increase, pressure increase easily makes geomembrane rupture, and is also easy to that landfill yard is caused to cave in, and then it is qualitative to influence Landfill Stabilization.
It is interior-over-the-counter that a kind of landfill gas field is disclosed in the Chinese invention patent application document of Publication No. CN105062598B The method of Combined Treatment, the method include the following steps：(1) purified in situ is carried out in garbage loading embeading device；(2) landfill gas enters Purify packed tower.Reach purification landfill gas, improves the effect of release gaseous mass.The middle promulgated by the State Council of Publication No. CN106284429A A kind of domestic refuse incineration ash landfill yard and its good antiscale property processing method are disclosed in bright Patent Application Publication, it is pre- by aging Calcium concentration in source control percolate is handled, while controlling the control of leachate collection Well Water Level, achievees the purpose that good antiscale property.And it is net It is limited to change packed tower treating capacity, pays close attention to landfill gas purification, does not consider slag filler handling problems.Aging pretreatment time week Phase is long, and floor space is wider.
Existing clinker preconditioning technique has weathering, washing, solidification, chemical stabilization and heat treatment etc., and method is main at present It is for going removing heavy metals, stabilizing slag property.And length (needs several thoughtful some months the time required to processing method exists at present Time), the problems such as processing cost is high, treatment effeciency is not high.So needing to propose for slag treatment a kind of efficient, easily square Method, while purification landfill gas is also needed to, landfill yard fouling risk is reduced, maintains Landfill Stabilization qualitative.
Invention content
The purpose of the present invention is the Drainage features and landfill yard fouling condition for current refuse landfill landfill gas, and The physicochemical property of dregs of incinerator provides a kind of method preventing refuse landfill fouling and clogging using clinker and landfill gas, a side Face purifies landfill gas, on the other hand reduces the dissolution of calcium in furnace ion, prevents landfill yard fouling and dregs of incinerator recycling Combined governance method improve CO effectively to reduce the risk of the mixed fouling and clogging filled out of clinker and house refuse2Removal effect Rate purifies landfill gas quality, improves utilization of LFG efficiency, is carried out at the same time the processing of dregs of incinerator recycling.The present invention is simultaneously A kind of device for being prevented refuse landfill fouling and clogging using clinker and landfill gas is provided, dregs of incinerator and landfill gas are focused on It handles together, device is simple, easy to operate.
In order to achieve the above object, technical scheme is as follows：
In order to achieve the above object, the method that the present invention carries out prevention refuse landfill fouling and clogging using above-mentioned apparatus, including Following steps：
1) clinker buring layers of the by the clinker discharging after burning in handling, between closed processes；
2) conveys landfill gas in handling by admission line, and landfill gas is reacted with clinker；
3) reactions after a certain period of time, detect CO in the gas of gas outlet2Concentration works as CO2When concentration is higher than 20%, landfill gas From returned in pipeline processing between the reaction was continued, work as CO2When concentration is less than 20%, the landfill gas after reaction is collected；
4) for the clinker between is handled after processing in 3-5 days, the clinker in replacement processing transports the clinker after reaction It is filled toward landfill yard.
Further, reaction temperature is 20-35 DEG C in the step 2).
Further, the reaction time described in the step 3) is 7-8h.
The present invention utilizes the Ca in clinker mainly to exist with oxidation state, by the CO of itself and reproducibility2It is anti-to carry out redox It answers, can effectively cure the CaO in dregs of incinerator, reduce the risk of landfill yard fouling, maintain landfill yard normal operation. Also landfill gas is purified simultaneously, increases CH4Ratio improves landfill gas quality.Key reaction is as follows：
CaO+CO2→CaCO3
Realize the above method prevention refuse landfill fouling and clogging device, including between processing, discharge gate, air inlet Mouth, gas outlet and clinker discharge port, the side wall between the processing are arranged discharge gate, close the processing when discharge gate Between be confined space, clinker buring layer is set below the discharge gate in the processing, described in the processing The lower part of clinker buring layer is arranged the clinker discharge port, and the top of the clinker buring layer is arranged the gas outlet, it is described go out Gas monitor is set at gas port, and the bottom between the processing is laid with landfill gas admission line, and institute is arranged on the admission line State air inlet.
Further, the valve of the air inlet and setting control gas flow at gas outlet.
Further, reflux line is set between the air inlet and the gas outlet, is arranged back on the reflux line Stream pump.
Further, admission line is set in the clinker buring layer surrounding in the processing.
Further, the admission line includes transport supervisor and transport branch pipe, and the transport supervisor transverse horizontal is laid with, One section of transport branch pipe is set every a distance on the transport supervisor, all transport branch pipe vertical equities are laid with.
Further, the spacing between each two adjacent transport branch pipe is 1-3m, every 20- on the transport branch pipe 50cm beats 2-3 hole.
Further, discharging platform is set outside the discharge gate, is convenient for clinker stack pallet discharging.
Further, discharge port is set at the discharge gate, and the discharge port is funnel-form.
Further, the funnel-form discharge port be can the closeable discharge port of leak.
The device have the advantages that：
1. significantly reducing fouling and clogging risk in landfill yard, landfill yard stable operation is maintained
Calcareous material enters the risk that landfill yard increases landfill yard fouling and clogging, serious to reduce landfill yard stabilization Property.Clinker is curing by filling in the present invention, and calcium ion therein is converted into calcium carbonate, reduces calcium ion exudation Risk.It inserts in landfill yard later, reduces the fouling possibility of geomembrane and leachate collection system, improve Landfill Stabilization It is qualitative.
2. significantly reducing CO in landfill gas2Content improves landfill gas quality
CH in landfill gas at present4Resource utilization it is low, the potential energy source in landfill gas is not fully used, need by Landfill gas continues to be subject to purification, especially removes the CO in landfill gas2To improve calorific value, the CH in gas after purifying is improved4 Content.Traditional method there are high cost, consumption great lot of water resources the shortcomings that.The present invention is pure in landfill operation area setting landfill gas Makeup is set, and landfill gas is introduced purification devices by blower unit, can effectively reduce energy consumption, obtains preferable CO2Removal effect Fruit improves calorific value.Landfill gas can produce renewable motor vehicle fuel, natural gas tube after gas-guide tube drains into landfill gas purification devices Road transport etc..
3. completing waste incineration slag comprehensive utilization of resources
Pretreatment waste incineration slag entered at present before landfill yard include mainly weathering, washing, chemical stabilization, The modes such as heat treatment.Traditional mode there are high cost ineffective, increase-volume rate is high the shortcomings of.The present invention fills landfill gas using clinker Purification devices fully reduce clinker and pre-process cost, complete clinker solidification.Landfill gas quality is improved simultaneously, reduces clinker Lead to landfill yard geomembrane and leachate collection system fouling possibility into landfill yard.
4. realizing landfill yard landfill gas to comprehensively utilize with dregs of incinerator
The method of the present invention has carried out landfill gas purifying and stove using the characteristic and landfill gas Drainage feature of waste incineration slag The cured comprehensive treatment of slag improves landfill gas quality and effectively has cured clinker.CO processed by the invention2Removal rate is reachable 34% or more.Calcium ion after dregs of incinerator is cured is exudative to be substantially reduced.It can be seen that the method for the present invention has well Environment and social benefit.
1. significantly reducing fouling and clogging risk in landfill yard, landfill yard stable operation is maintained
2. significantly reducing CO in landfill gas2Content improves landfill gas quality
3. completing waste incineration slag comprehensive utilization of resources
4. realizing landfill yard landfill gas to comprehensively utilize with dregs of incinerator
Description of the drawings
With reference to the accompanying drawings and detailed description, the present invention is described in detail, wherein：
Fig. 1 is a kind of step block diagram for the method carrying out prevention refuse landfill fouling and clogging using above-mentioned apparatus.
Fig. 2 is a kind of schematic device carrying out prevention refuse landfill fouling and clogging using above-mentioned apparatus.
Fig. 3 is bottom inflow pipeline vertical view arrangement schematic diagram between processing.
Fig. 4 is clinker XRD (X-ray diffractometer) figure before being reacted in embodiment 1.
Fig. 5 is clinker XRD (X-ray diffractometer) figure after being reacted in embodiment 1.
Wherein：1- discharge gates, 2- clinkers stack pallet, 3- discharging platforms, 4- clinkers discharge pit, 5- clinkers buring layer, 6- Clinker discharge port, 7- clinkers transport vehicle, 8- landfill yards, 9- air inlets, 10- reflux lines, 11- reflux pumps, the gas outlets 12-, 13- Between detector, the power plants 14-, 15- temperature sensors, 16- processing.
Specific implementation mode
In order to make goal of the invention, technical solution and its technique effect of the present invention be more clear, below in conjunction with attached drawing and tool Body embodiment, the present invention is described in more detail.It should be understood that specific implementation mode described in this specification is only Merely to explaining the present invention, it is not intended to limit the present invention.
Embodiment 1：
A method of prevention refuse landfill fouling and clogging being carried out using above-mentioned apparatus, as shown in Figure 1, including following step Suddenly：
1) clinker (clinker XRD is shown in Fig. 4 before reaction) in garbage incinerator grates mouth is collected, takes 50g clinkers extremely Between processing, between closed processes；
2) landfill gas that 60% methane, 40% carbon dioxide form is transported by admission line to processing, processing Between bottom and both sides be evenly arranged gas-guide tube, it is anti-to ensure that clinker with landfill gas comes into full contact with progress by charge flow rate 50mL/min It answers, reaction temperature is 35 DEG C；
3) gas monitor is set in exhaust outlet, monitors CO at any time2Concentration is entered between processing by circulating pump and continues to locate It manages, after reaction time 8h, the CO in landfill gas2It a concentration of 19.14% (being less than 20%), collects the landfill gas after reaction and directly transports Transport to power plant use.
4) clinker between handling stops air inlet, the landfill gas in emptying process, after reaction after processing in 3 days Clinker transport landfill yard to and filled, and more renew clinker between handling.
Treated, and clinker (clinker XRD is shown in Fig. 5 after reaction) is carried out at the same time three groups of exudation experiments：
TCLP (Environmental Protection Agency USA 1315 --- toxic characteristic leaching test), the clinker calcium ion concentration before reaction are 7386mg/L, the clinker calcium ion concentration after reaction are 6485mg/L；
SPLP (Environmental Protection Agency USA 1312 --- synthesis precipitation leaching test), the clinker calcium ion concentration before reaction is 471mg/L, the clinker calcium ion concentration after reaction are 416mg/L；
Percolate leaching test (pH=5.89), 30mL percolates are added in clinker after taking 5g to react, and are placed on 25 DEG C of shaking table Lower 200r/min rocks for 24 hours, and supernatant is gone to measure calcium ion content after standing, and the clinker calcium ion concentration before reaction is 7652mg/L, the clinker calcium ion concentration after reaction are 4593mg/.
Clinker calcium ion concentration obviously has reduction before comparing reaction after reaction, CO in the landfill gas after reaction2Content reduces , methane content improve, the quality of the landfill gas after reaction is high, so that the landfill gas is reached as high-quality natural gas power or automobile The standard requirement of fuel.
Embodiment 2：
A method of prevention refuse landfill fouling and clogging is carried out using above-mentioned apparatus, is included the following steps：
1) slag collection in garbage incinerator grates mouth is got up, takes 50g to fill between processing, between closed processes；
2) landfill gas that 60% methane, 40% carbon dioxide form is transported by admission line to processing, processing Between bottom and both sides be evenly arranged gas-guide tube, it is anti-to ensure that clinker with landfill gas comes into full contact with progress by flow 31.32mL/min It answers, reaction temperature is 20 DEG C；
3) gas monitor is set in exhaust outlet, monitors CO at any time2Concentration is entered between processing by circulating pump and continues to locate Reason, after reacting 7 hours, the CO in landfill gas2It a concentration of 19.14% (being less than 20%), collects the landfill gas after reaction and directly transports Transport to power plant use.
4) clinker between handling stops air inlet, the landfill gas in emptying process, after reaction after processing in 5 days Clinker transport landfill yard to and filled.
TCLP (Environmental Protection Agency USA's danger wastes discrimination method), the clinker calcium ion concentration before reaction are 7529mg/L, the clinker calcium ion concentration after reaction are 6631mg/L
SPLP (Environmental Protection Agency USA's Simulated Acid Rain leaching method), the clinker calcium ion concentration before reaction are 480mg/L, Clinker calcium ion concentration after reaction is 424mg/L
Percolate leaching test (pH=5.89), the clinker calcium ion concentration before reaction are 7716mg/L, the stove after reaction Slag calcium ion concentration is 4645mg/L
Clinker calcium ion concentration before reaction compared to obviously having reduction after reaction, and CO2 contents reduce in the landfill gas after reaction , methane content improve, the quality of the landfill gas after reaction is high, so that the landfill gas is reached as high-quality natural gas power or automobile The standard requirement of fuel.
Embodiment 3：
A method of prevention refuse landfill fouling and clogging is carried out using above-mentioned apparatus, is included the following steps：
1) slag collection in garbage incinerator grates mouth is got up, takes 50g clinkers between handling, between closed processes；
2) landfill gas that 60% methane, 40% carbon dioxide form is transported by admission line to processing, processing Between bottom and both sides be evenly arranged gas-guide tube, it is anti-to ensure that clinker with landfill gas comes into full contact with progress by charge flow rate 50mL/min It answers, reaction temperature is 30 DEG C；
3) gas monitor is set in exhaust outlet, monitors CO2 concentration at any time, entered between processing by circulating pump and continue to locate It manages, after reaction time 8h, the CO2 a concentration of 19.2% (being less than 20%) in landfill gas collects the landfill gas after reaction and directly transports Transport to power plant use.
4) clinker between handling stops air inlet, the landfill gas in emptying process, after reaction after processing in 3 days Clinker transport landfill yard to and filled, and more renew clinker between handling.
Treated, and clinker is carried out at the same time three groups of exudation experiments：
TCLP (Environmental Protection Agency USA 1315 --- toxic characteristic leaching test), the clinker calcium ion concentration before reaction are 7673mg/L, the clinker calcium ion concentration after reaction are 6778mg/L；
SPLP (Environmental Protection Agency USA 1312 --- synthesis precipitation leaching test), the clinker calcium ion concentration before reaction is 491mg/L, the clinker calcium ion concentration after reaction are 432mg/L；
Percolate leaching test (pH=5.89), 30mL percolates are added in clinker after taking 5g to react, and are placed on 25 DEG C of shaking table Lower 200r/min rocks for 24 hours, and supernatant is gone to measure calcium ion content after standing, and the clinker calcium ion concentration before reaction is 7780mg/L, the clinker calcium ion concentration after reaction are 4697mg/.
Clinker calcium ion concentration before reaction compared to obviously having reduction after reaction, and CO2 contents reduce in the landfill gas after reaction , methane content improve, the quality of the landfill gas after reaction is high, so that the landfill gas is reached as high-quality natural gas power or automobile The standard requirement of fuel.
Embodiment 4：
As Figure 2-3, a kind of device of prevention refuse landfill fouling and clogging, including 16, discharge gate 1 between processing, Air inlet 9, gas outlet 12 and clinker discharge port 6, discharge gate 1 is arranged in 16 side wall between processing, is handled when closing discharge gate 1 Between 16 be confined space, clinker buring layer 5 is set in 16 between processing below discharge gate 1,16 between processing in filled in clinker The clinker discharge port 6 is arranged in the lower part of layer 5, and the top of clinker buring layer 5 is arranged the gas outlet 12, is arranged at gas outlet 12 Gas monitor 13,16 bottom is laid with landfill gas admission line 17 between processing, and air inlet 9 is arranged on admission line 17.
In the present embodiment, the valve of setting control gas flow at air inlet 9 and gas outlet 12, according to the yield of gas come Gas flow is adjusted, when gas outlet carbon dioxide content is more than 30%, reduces air inflow；When gas outlet, carbon dioxide content is low When 20%, increase air inflow.
In the present embodiment, reflux line 10 is set between air inlet 9 and the gas outlet 12, is arranged on the reflux road 10 Reflux pump 11, reflux pump 11 provide the power that gas backstreaming enters between processing 16.
In the present embodiment, 16 is interior in 5 surrounding of clinker buring layer setting admission line 17 between processing, and clinker is entering When between processing, different grain size layers can be naturally formed according to the grain size of particle, tiny grain size can be in bottom, so filling out It is also provided with admission line 17 above buried layer, is come into full contact with clinker with providing enough landfill gas.
In the present embodiment, admission line 17 includes transport supervisor 171 and transport branch pipe 172, and the transport supervisor 171 is laterally Level is laid with, and one section of transport branch pipe 172, all transports branch 172 is arranged every a distance on the transport supervisor 171 Pipe vertical equity is laid with.
In the present embodiment, transport pipeline 17 is PVC tube having holes, between each adjacent transport branch pipe spacing for 1m or 2m or 3m is evenly arranged air inlet 9 on transport pipeline 17, and aperture is 1m or 2cm, and pitch of holes is 10m or 20cm, ensures clinker and fills out It buries gas to come into full contact with, pipeline is that both sides open up air inlet 9.
In the present embodiment, discharging platform 3 is set outside the discharge gate 1, discharge port is set at the discharge gate, The discharge port is funnel-form.
Specifically, on clinker stack pallet 4 to discharging platform 3, discharge gate 1 is opened, clinker is discharged to funnel-form discharge port, So that clinker is dropped down onto clinker buring layer 5, then removes clinker stack pallet 4 and close discharge gate 1, allow reaction to continue, reacted The flow of input and output gas is adjusted according to the yield for collecting final gas in journey, between processing in clinker after 3-5 days are handled, Calcium ion in clinker is all cured, and the clinker between processing, which is transported to landfill yard, to be filled；The clinker more renewed then leads to Cross gas vent drain processing between gas, discharging is then carried out by clinker stack pallet 4 again, by collection it is untreated completely Gas, by reflux pump again be back to processing between continue with.
As shown in Fig. 2, another embodiment of the presently claimed invention, the present embodiment has the full content of above-described embodiment 3, no It is with place：The funnel-form discharge port is can the closeable discharge port of leak.
Specifically, on clinker stack pallet 4 to discharging platform 3, discharge gate 1 is opened, clinker is discharged to funnel-form discharge port, Then it removes clinker stack pallet 4 and closes discharge gate 1 so that 16 are in air-tight state between processing, are then turned on funnelform discharging Mouthful, so that clinker is dropped down onto clinker buring layer 5, reaction is allowed to continue, is adjusted according to the yield for collecting final gas in reaction process Save input and output gas flow, between processing in clinker by 3-5 days handle after, the calcium ion in clinker is all cured, and will handle Between in clinker be transported to landfill yard and filled；The clinker more renewed then drains the gas between processing by gas vent, so Discharging is carried out by clinker stack pallet 4 again afterwards, by the untreated complete gas of collection, is back to place again by reflux pump It is continued between reason.
In the present embodiment, online methane and carbon dioxide detector, 24 hours uninterrupted works may be used in gas monitor Make, bound alarming value can be set, concrete model is for example：CJR4/5 type methane and carbon dioxide analyzers.
As shown in Fig. 2, another embodiment of the presently claimed invention, the present embodiment has the full content of above-described embodiment 3, no It is with place：In the temperature sensor 16 of the interior setting monitoring temperature of processing, unreacted fill up contains about 50-65% in gas Methane, the upper explosion limit of methane is 15.4%.Lower limit is 5%, and required ignition temperature is 538 DEG C, under normal circumstances, first The content of alkane can increase with the progress of reaction, be not at the state that can be exploded, but be not excluded for producing in refuse landfill Raw landfill gas ingredient change cause methane can be in can explode in the range of, so increase a temperature monitor 16, Enhance safety coefficient.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited in above-mentioned specific Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much Form, all of these belong to the protection of the present invention.In addition, although having used some specific terms in this specification, this A little terms merely for convenience of description, do not limit the present invention in any way.

Claims (10)

1. a kind of method preventing refuse landfill fouling and clogging using clinker and landfill gas, includes the following steps：
1) clinker buring layers of the by the clinker discharging after burning in handling, between closed processes；
2) conveys landfill gas in handling by admission line, and landfill gas is reacted with clinker；
3) reactions after a certain period of time, detect CO in the gas of gas outlet2Concentration works as CO2When concentration is higher than 20%, landfill gas is from pipe Returned in road processing between the reaction was continued, work as CO2When concentration is less than 20%, the landfill gas after reaction is collected；
4) after processing in 3-5 days, the clinker after reaction is transported to and is filled out the clinker between is handled by the clinker in replacement processing Field is buried to be filled.
2. the method according to claim 1 for preventing refuse landfill fouling and clogging using clinker and landfill gas, feature It is：Reaction temperature is 20-35 DEG C in the step 2).
3. the method according to claim 1 for preventing refuse landfill fouling and clogging using clinker and landfill gas, feature It is：The reaction time is 7-8h in the step 3).
4. realizing the device of the prevention refuse landfill fouling and clogging of claim 1 the method, it is characterised in that：Including processing Between, discharge gate, air inlet, gas outlet and clinker discharge port, the side wall between the processing is arranged discharge gate, unloaded described in closing Expect to be confined space between the processing when gate, clinker buring layer, institute are set below the discharge gate in the processing It states the lower part in processing in the clinker buring layer and the clinker discharge port is set, institute is arranged in the top of the clinker buring layer State gas outlet, gas monitor be set at the gas outlet, the bottom between the processing is laid with landfill gas admission line, it is described into The air inlet is set in feed channel.
5. the device according to claim 4 for preventing refuse landfill fouling and clogging using clinker and landfill gas, feature It is：The valve of the air inlet and setting control gas flow at gas outlet.
6. the device according to claim 4 for preventing refuse landfill fouling and clogging using clinker and landfill gas, feature It is：Reflux line is set between the air inlet and the gas outlet, reflux pump is set on the reflux line.
7. the device according to claim 4 for preventing refuse landfill fouling and clogging using clinker and landfill gas, feature It is：Admission line is set in the clinker buring layer surrounding in the processing.
8. the device according to claim 4 for preventing refuse landfill fouling and clogging using clinker and landfill gas, feature It is：The admission line includes transport supervisor and transport branch pipe, and the transport supervisor transverse horizontal is laid with, the transport supervisor On every a distance be arranged one section transport branch pipe, all transport branch pipe vertical equities be laid with.
9. the device according to claim 8 for preventing refuse landfill fouling and clogging using clinker and landfill gas, feature It is：Spacing between each two adjacent transport branch pipe is 1-3m, and 2-3 hole is beaten every 20-50cm on the transport branch pipe.
10. the device according to claim 4 for preventing refuse landfill fouling and clogging using clinker and landfill gas, feature It is：Discharge port is set at the discharge gate, and the discharge port is funnel-form.
CN201810108187.5A 2018-02-02 2018-02-02 Method and device for preventing and treating scaling blockage of refuse landfill by utilizing furnace slag and landfill gas Active CN108405549B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114289474A (en) * 2021-11-24 2022-04-08 生态环境部南京环境科学研究所 Rapid carbon fixation and stabilization pretreatment method for incinerator slag

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008264627A (en) * 2007-04-17 2008-11-06 Pollars Laboratory Corp Waste treatment material and treatment method for detoxifying fly ash (soot and dust) and burned ash or the like
CN105062598A (en) * 2015-08-28 2015-11-18 台州学院 Method for landfill gas in-the-field and out-of-the-field combined treatment
CN106001058A (en) * 2016-06-16 2016-10-12 同济大学 Method for manufacturing industrial chemicals by using household garbage incineration slag
CN106284429A (en) * 2016-08-10 2017-01-04 同济大学 One way of life cinder from refuse incineration landfill yard and good antiscale property processing method thereof
CN206701916U (en) * 2017-03-07 2017-12-05 环境保护部南京环境科学研究所 A kind of Sanitary Landfill air guide well of embedded dregs of incinerator
CN107570528A (en) * 2017-10-31 2018-01-12 青岛理工大学 A kind of stabilizing fly ash makeup is put

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008264627A (en) * 2007-04-17 2008-11-06 Pollars Laboratory Corp Waste treatment material and treatment method for detoxifying fly ash (soot and dust) and burned ash or the like
CN105062598A (en) * 2015-08-28 2015-11-18 台州学院 Method for landfill gas in-the-field and out-of-the-field combined treatment
CN106001058A (en) * 2016-06-16 2016-10-12 同济大学 Method for manufacturing industrial chemicals by using household garbage incineration slag
CN106284429A (en) * 2016-08-10 2017-01-04 同济大学 One way of life cinder from refuse incineration landfill yard and good antiscale property processing method thereof
CN206701916U (en) * 2017-03-07 2017-12-05 环境保护部南京环境科学研究所 A kind of Sanitary Landfill air guide well of embedded dregs of incinerator
CN107570528A (en) * 2017-10-31 2018-01-12 青岛理工大学 A kind of stabilizing fly ash makeup is put

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114289474A (en) * 2021-11-24 2022-04-08 生态环境部南京环境科学研究所 Rapid carbon fixation and stabilization pretreatment method for incinerator slag
CN114289474B (en) * 2021-11-24 2023-08-29 生态环境部南京环境科学研究所 Rapid carbon fixation and stabilization incinerator slag pretreatment method

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