CN106217925A - A kind of method of pretreatment before incineration of refuse flyash is melted - Google Patents
A kind of method of pretreatment before incineration of refuse flyash is melted Download PDFInfo
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- CN106217925A CN106217925A CN201610631529.2A CN201610631529A CN106217925A CN 106217925 A CN106217925 A CN 106217925A CN 201610631529 A CN201610631529 A CN 201610631529A CN 106217925 A CN106217925 A CN 106217925A
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- percolate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/32—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/0052—Details of, or accessories for, presses; Auxiliary measures in connection with pressing for fluid driven presses
Abstract
The method that the invention discloses the melted front pretreatment of a kind of incineration of refuse flyash, employing following steps :) utilize mixing and blending machine that flying dust and the film filtration concentrated of percolate are mixed into pureed mixture；Two) single lead screw ex truding briquetting machine is utilized by step one) the pureed mixture that obtains is extruded for bar column electric arc furnace raw material.The present invention is by the film filtration concentrated of percolate and flying dust mix and blend, the electric arc furnace raw material that loose flying dust is combined by the film filtration concentrated caking property utilizing percolate and machine-shaping is bar column, both can ensure that flying dust efficient process in melting furnace, solve again a film filtration concentrated harmless treatment difficult problem for percolate, the treatment of wastes with processes of wastes against one another, achieve many things at one stroke, there is plurality of advantages, environmental benefit and the remarkable in economical benefits such as flow process is simple, compact conformation, floor space are little, small investment, operational efficiency are high.
Description
Technical field
The present invention relates to the processing method of a kind of incineration of refuse flyash, particularly relate to a kind of film utilizing percolate
Filtering and concentrating liquid carries out the method for the melted front pretreatment of incineration of refuse flyash.
Background technology
Domestic waste, crop material, municipal sludge generation amount big, coverage is wide, it has also become seriously restrict me
One of key factor that society of state, economic heath develop.At present, the generation amount of National urban house refuse be up to 1.6 hundred million tons/
Year, and just increase year by year with the speed of 5%-8%.Use incineration technology to process domestic waste, make rubbish owing to having
The minimizing of limits, the advantage such as the resource of the minimum innoxious and heat energy utilization polluted, the most gradually rise.According to not
Adding up completely, current domestic existing nearly 100 garbage incinerating power plants in succession put into construction and run, and in the five-year, China is also
By solid waste burning power plants such as newly-built more than 300 seat rubbish, mud and straws.
Incineration of refuse flyash is the powdery refuse collected after the reacted tower of flue gas of refuse burning and sack cleaner purify, main
Wanting composition is the oxide containing Si, Ca, Al, Fe and calcium salt etc., possibly together with a small amount of heavy metal of activated carbon adsorption and trace
The severe toxicity Organic substance such as dioxin, belongs to the danger wastes that composition is more complicated, it is necessary to carry out safe place by relative national standards regulation
Put, and destroying completely of dioxin to be guaranteed is fixed with the effective of heavy metal, it is ensured that secondary pollution will not be produced.Safe disposal
Incineration of refuse flyash is the most all a difficult problem of environmental protection, common solidification land-fill method not only still suffer from potential safety hazard but also
Needs take a large amount of soil, and by comparison, arc melting technique can make flying dust remelted and discharge liquid slag, and liquid slag is through swashing
Form the most innoxious vitreous body material after cold, both can thoroughly eliminate safe hidden trouble, building materialsization can be realized again and utilize, just be subject to
The most how the extensive concern of industry all circles also obtains Demonstration Application.But, owing to melting furnace is usually negative-pressure operation, powdery
Flying dust is difficult to normally enter the liquid state molten pool of furnace bottom and be effectively addressed after entering melting furnace under negative pressure-pumping effect, thus
Need to carry out the pretreatment before melting.
Percolate is that the high concentration of a kind of complicated component that rubbish produces in receiving fortune, process and disposal process is organic
Waste water, not only contains a large amount of organic pollution, and ammonia nitrogen and salt content is the highest, and containing tens metal ion species, raw
Thing nutritive proportion is lacked of proper care, and water quantity and quality changes greatly, and colourity is deep and foul smelling, it is difficult to process.For reaching strict discharge standard, rubbish
The process of rubbish percolate have employed " pretreatment+biological treatment+bi-membrane method (NF+RO) " combined treatment process more.This combination
Process technique and become the prevailing technology of China's landfill leachate treatment, solve the material of contained a large amount of difficult degradations in percolate
With the advanced treating problem of toxicant, outlet effect is good, floor space is little.But, the method still can produce in a large number (30% left side
Right) film filtration concentrated, the wherein Organic substance of enriched difficult degradation, inorganic salts and micro heavy, it is difficult to process.
Current domestic more recharging to refuse landfill or return and be sprayed onto incinerator, passage in time causes the incinerator blowing-ouf of lines, fills out
Bury an infiltration liquid difficult degradation organic matter accumulation, salinity increases, until related system cannot run.
Summary of the invention
The present invention solves technical problem present in known technology provide a kind of incineration of refuse flyash melted before pre-place
The method of reason, employing the method can be by the film filtration concentrated of percolate and flying dust mix and blend molding, for solving simultaneously
Certainly incineration of refuse flyash provides preparation with the film filtration concentrated process handling problems of percolate.
The present invention solves that technical problem is adopted the technical scheme that present in known technology: a kind of waste incineration flies
The method of pretreatment before ash is melted, employing following steps :) utilize mixing and blending machine by flying dust and the membrane filtration of percolate
Concentrated solution is mixed into pureed mixture；Two) single lead screw ex truding briquetting machine is utilized by step one) the pureed mixture that obtains is extruded
For bar column electric arc furnace raw material.
Described flying dust uses feed screw to send into described mixing and blending machine, described percolate film filtration concentrated
Using nozzle to spray into described mixing and blending machine, described nozzle is fixed on described mixing and blending machine.
Described mixing and blending machine is provided with the tank body being vertically arranged, and is provided with multiple being evenly distributed on the sidewall of described tank body
Described concentrated solution nozzle, in described tank body, be provided with shaft, described shaft be fixed with helical blade, described stirring
Axle is driven by motor.
Described single lead screw ex truding briquetting machine is provided with horizontally disposed pressing cavity, is respectively arranged at the two ends with an one-tenth in described pressing cavity
Type sieve plate and a described molding mass outlet, be provided with multiple uniform molding sieve aperture on described molding sieve plate, and described molding is sieved
The diameter in hole is gradually reduced from the inside to the outside, is provided with the stripper plate being vertically arranged in described pressing cavity, and described stripper plate is by liquid
Pressure push rod drives.
The present invention has the advantage that with good effect: percolate film filtration concentrated is mixed with flying dust and stirs
Mix, utilize the film filtration concentrated caking property of percolate to be combined by loose flying dust and machine-shaping is bar post
The electric arc furnace raw material of shape, both can ensure that flying dust efficient process in melting furnace, had solved again the film of percolate
A harmless treatment difficult problem for filtering and concentrating liquid, the treatment of wastes with processes of wastes against one another, achieve many things at one stroke, have that flow process is simple, compact conformation, floor space
Plurality of advantages, environmental benefit and the remarkable in economical benefits such as little, small investment, operational efficiency are high.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention applies；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the sectional view of the mixing and blending machine that the present invention applies.
In figure: 1, feed screw, 2, mixing and blending machine, 3, nozzle, 4, single lead screw ex truding briquetting machine, 5, hydraulic push rod, 6, molding
Material outlet, 7, flying dust entrance, 8, propeller blade, 9, motor.
Detailed description of the invention
For the summary of the invention of the present invention, feature and effect can be further appreciated that, hereby enumerate following example, and coordinate accompanying drawing
Describe in detail as follows:
Refer to Fig. 1～Fig. 3, a kind of method of pretreatment before incineration of refuse flyash is melted, employing following steps :) profit
With mixing and blending machine 2, flying dust and the film filtration concentrated of percolate are mixed into pureed mixture；Two) extruding is utilized
Forming machine 4 is by step one) the pureed mixture that obtains is extruded for bar column electric arc furnace raw material.
In the present embodiment, described flying dust uses feed screw 1 to send into described mixing and blending machine 2, described garbage filter
The film filtration concentrated employing nozzle 3 of liquid sprays into described mixing and blending machine 2, and described nozzle 3 is fixed on described mixing and blending machine 2
On.Described mixing and blending machine 2 is provided with the tank body being vertically arranged, and is provided with multiple institute being evenly distributed on the sidewall of described tank body
State concentrated solution nozzle 3, in described tank body, be provided with shaft, described shaft is fixed with helical blade 8, described shaft
Driven by motor 9.Described single lead screw ex truding briquetting machine 4 is provided with horizontally disposed pressing cavity, being respectively arranged at the two ends with of described pressing cavity
One molding sieve plate and a described molding mass outlet 6, be provided with multiple uniform molding sieve aperture on described molding sieve plate, described
The diameter of molding sieve aperture is gradually reduced from the inside to the outside, is provided with the stripper plate being vertically arranged, described extruding in described pressing cavity
Plate is driven by hydraulic push rod 5.The material of above-mentioned mixing and blending machine 2 and single lead screw ex truding briquetting machine 4 is 304 rustless steels.
Although the preferred embodiments of the present invention being described above in conjunction with accompanying drawing, but the invention is not limited in
The detailed description of the invention stated, above-mentioned detailed description of the invention is only schematically, is not restrictive, this area common
Technical staff is under the enlightenment of the present invention, in the case of without departing from present inventive concept and scope of the claimed protection, also
Can be to make a lot of form, within these belong to protection scope of the present invention.
Claims (4)
1. the method for pretreatment before an incineration of refuse flyash is melted, it is characterised in that employing following steps:
One) utilize mixing and blending machine that flying dust and the film filtration concentrated of percolate are mixed into pureed mixture；
Two) single lead screw ex truding briquetting machine is utilized by step one) the pureed mixture that obtains is extruded for bar column electric arc furnace raw material.
The method of pretreatment before incineration of refuse flyash the most according to claim 1 is melted, it is characterised in that described flying dust is adopted
Sending into described mixing and blending machine with feed screw, the film filtration concentrated employing nozzle of described percolate sprays into described mixed
Closing blender, described nozzle is fixed on described mixing and blending machine.
The method of pretreatment before incineration of refuse flyash the most according to claim 2 is melted, it is characterised in that described mixing is stirred
The machine of mixing is provided with the tank body being vertically arranged, and is provided with multiple described concentrated solution nozzle being evenly distributed on the sidewall of described tank body,
Being provided with shaft in described tank body, be fixed with helical blade on described shaft, described shaft is driven by motor.
The method of pretreatment before incineration of refuse flyash the most according to claim 1 is melted, it is characterised in that described in be squeezed into
Type machine is provided with horizontally disposed pressing cavity, is respectively arranged at the two ends with a molding sieve plate and a described one-tenth in described pressing cavity
Moulding mixture export, described molding sieve plate is provided with multiple uniform molding sieve aperture, the diameter of described molding sieve aperture from the inside to the outside by
The least, in described pressing cavity, it is provided with the stripper plate being vertically arranged, described stripper plate is driven by hydraulic push rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610631529.2A CN106217925B (en) | 2016-08-02 | 2016-08-02 | A kind of preceding pretreated method of incineration of refuse flyash melting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610631529.2A CN106217925B (en) | 2016-08-02 | 2016-08-02 | A kind of preceding pretreated method of incineration of refuse flyash melting |
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| CN106217925A true CN106217925A (en) | 2016-12-14 |
| CN106217925B CN106217925B (en) | 2019-02-05 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107030093A (en) * | 2017-05-03 | 2017-08-11 | 江苏天楹环保能源成套设备有限公司 | One kind combines washing and plasma fusion handles flying ash system |
| CN108296260A (en) * | 2018-01-17 | 2018-07-20 | 上海煜工环保科技有限公司 | A kind of domestic garbage incineration flyash recycling corollary system |
| CN109824271A (en) * | 2019-01-16 | 2019-05-31 | 武汉博立达农业科技发展有限公司 | It handles the method for house refuse and implements its system |
| CN110715297A (en) * | 2019-10-15 | 2020-01-21 | 武汉丰盈能源技术工程有限公司 | Harmless treatment system and method for plasma gasification furnace and waste incineration power plant |
| CN112082164A (en) * | 2020-09-11 | 2020-12-15 | 中国科学院过程工程研究所 | Garbage leachate and incineration fly ash cooperative treatment process |
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| CN205393165U (en) * | 2016-03-03 | 2016-07-27 | 四川昊伶节能科技有限公司 | Domestic waste renewable sources of energy material shaping ejection of compact machine |
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| CN1908518A (en) * | 2006-08-21 | 2007-02-07 | 东北大学 | Electric arc molten processing system and method for processing rubbish combustion ash |
| CN101255990A (en) * | 2007-03-01 | 2008-09-03 | 刘正华 | Preprocessing method for incineration of industry peril waste |
| CN101284396A (en) * | 2008-05-22 | 2008-10-15 | 郝志付 | Method for producing building elements from building rubbish |
| KR100915531B1 (en) * | 2008-10-21 | 2009-09-04 | 문상수 | Equipment ferment for food waste discomposition processing system |
| CN102250666A (en) * | 2011-06-13 | 2011-11-23 | 华北电力大学 | Method for preparing formed fuel by compressing unburned fly ash of straws |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107030093A (en) * | 2017-05-03 | 2017-08-11 | 江苏天楹环保能源成套设备有限公司 | One kind combines washing and plasma fusion handles flying ash system |
| CN108296260A (en) * | 2018-01-17 | 2018-07-20 | 上海煜工环保科技有限公司 | A kind of domestic garbage incineration flyash recycling corollary system |
| CN109824271A (en) * | 2019-01-16 | 2019-05-31 | 武汉博立达农业科技发展有限公司 | It handles the method for house refuse and implements its system |
| CN110715297A (en) * | 2019-10-15 | 2020-01-21 | 武汉丰盈能源技术工程有限公司 | Harmless treatment system and method for plasma gasification furnace and waste incineration power plant |
| CN112082164A (en) * | 2020-09-11 | 2020-12-15 | 中国科学院过程工程研究所 | Garbage leachate and incineration fly ash cooperative treatment process |
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| Publication number | Publication date |
|---|---|
| CN106217925B (en) | 2019-02-05 |
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