CN1488590A - Sludge pyrolysis treating method and apparatus thereof - Google Patents
Sludge pyrolysis treating method and apparatus thereof Download PDFInfo
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- CN1488590A CN1488590A CNA021373515A CN02137351A CN1488590A CN 1488590 A CN1488590 A CN 1488590A CN A021373515 A CNA021373515 A CN A021373515A CN 02137351 A CN02137351 A CN 02137351A CN 1488590 A CN1488590 A CN 1488590A
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- mud
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- 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
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/40—Valorisation of by-products of wastewater, sewage or sludge processing
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- Gasification And Melting Of Waste (AREA)
Abstract
The invention is mud thermal decomposition method and the device. The invention uses plasma fire injector, process the dehydrated sticky mud into thin strips, and passes through high temperature plasma fire, under the protection of inert nitrogen, the organic substance is changed into combustible gas and solid through volatilization, degradation and polymerization. The reaction equation is: N2+RH electron current arc heating CO+CH4+C+ash compound+N2, thus the volume of mud is decreased greatly, the weight is light.
Description
Technical field
The present invention relates to a kind of treatment process and device of pyrolysis method mud, especially utilize the heat method mud to be carried out a kind of method and the equipment thereof of thermal decomposition process.
Background technology
Municipal sewage system mud comprises that inland river mud contains large amount of organic matter, and these organic substances can produce a considerable number of mud by behind the biochemical action of nature microorganism, and mud contains a large amount of microorganism remains and secretory product, and has pathogenic bacteria.Because the mud oxygen level is low, and anaerobically fermenting very easily takes place, and produces a large amount of foul smell.The common method of the mud of city processing at present is that landfill or burning disposal are made in sludge barging to outskirts of a town, but can produce secondary pollution to urban environment in above-mentioned transportation by lighter and the landfill disposal process, especially for some inland citys, landfill mud also will take valuable soil.And use the cheap energy such as fuel oil inferior or fire coal in the process of burning sludge, also can produce flue dust, pollute the atmosphere.Chinese patent (the patent No.: 01206033.X) disclose the utility model patent that a name is called " extraordinary rubbish plasma body incinerator ", but the content of its specification sheets and accompanying drawing is conflicting, for example; 1 block diagram with reference to the accompanying drawings, shielding gas, working gas advance plasma generator, and air advances incinerator, but has only an air intake passage on the accompanying drawing 2, does not provide the inlet of shielding gas, working gas.What difference does these two kinds of gases have? effect and principle? both do not drawn necessary technology schemes such as plasma structure, installation in the accompanying drawing, so that the person of an ordinary skill in the technical field is difficult to reproduce! The inflammable gas that discharges in the hospital waste treating processes and explosive reaction can occur after the air mixed continuously, and operation brings very big danger to equipment, but this device does not provide the technical scheme that solves above-mentioned difficult point yet.In addition, this device can not uninterruptedly be handled apace continuously to containing the more relatively municipal sludge of inanimate matter.
Summary of the invention
Technical problem to be solved by this invention is: a kind of pyrolysis treating method and equipment thereof of mud are provided, and this equipment has lightly, the characteristics of on-the-spot disposal, and the advantage of continuous uninterrupted duty.The pyrolysis treating method of this mud does not pollute atmosphere, can not bring danger such as blast to equipment yet.
The technical solution adopted for the present invention to solve the technical problems is: adopt temperature shock method drying and other treatment mud technology.Concrete technical scheme is; A container that utilizes metal foil to make, as the combustion chamber of handling mud, this combustion chamber inwall does not adopt any refractory materials to protect, and facts have proved the thawing phenomenon that steel plate do not occur, certainly, does not repel technical measures such as adding the cartridge plate radiator element yet.In side wall of combustion chamber, transverse horizontal has been installed a plasma body cutting torch, and the plasma body cutting torch adopts electric power to make the energy.Top layer in the combustion chamber, a sludge inlet divider also has been installed, as traditional vermicelli processing machine, its effect is with the thick sludge through whizzer or the finished hygrometric state of extrusion dehydration, extruding is rubbed into elongated vermicelli shape (physical construction of centrifugal or extrusion dehydration processing can be identical with prior art constructions again, also can improve to some extent, but should belong to the content of dividing an application, repeat no more here).The pyrolysis treating method of mud of the present invention is: the mud of vermicelli shape, to be basically perpendicular to the injection direction of flame passes, flame passes by the extreme temperatures that ejects continually lentamente, this high-temperature zone is to utilize the stream of electrons arcization to make local temperature be elevated to several thousand degree, mud is subjected to temperature shock in moment, produced rapid reaction, partial organic substances becomes inflammable gas by volatilization, cracking, polymerization, another part organic carbon becomes solid matter, and its organic chemical equation is:
Thereby sludge volume is dwindled, oxidation, change is harmful, and solid matter wherein is some ash contents into harmless, discharges from the discharge port of combustion chamber with the freely falling body form, also can further be utilized.As make material of construction, artwork also can be directly used in biologic packing material etc.Wherein the gas of Chan Shenging can be used as fuel as fuel.
The invention has the beneficial effects as follows: 1. sludge treatment residence time: mud enter combustion chamber body to residence time that the whole process of solid residue discharge opening is handled less than 25 seconds, have the advantages that the treatment time is extremely short, occupation area of equipment is little.2. the inflammable gas main component that produces in the reaction is CO, can be used as fuel.3. the plasma flame injector can adopt the 380V three-phase alternating-current supply, can be easy to get by source clean.With traditional prejudice, as if expensive secondary energy electric power is adopted in the refuse treatment of mud one class, expensive, so really not so through facts have proved.Because sludge treatment device of the present invention is a stand-alone product can finishing in the factory floor manufacturing, and its volume is small and exquisite, floor space is little, and convenient in carrying is flexible, sets up or removes a sludge treatment station and be very easy to.Along with remove in the city, planning enlarges, the immigrant, the sludge treatment website is also cancelled with newly-built thereupon, compare with necessary civil engineering of traditional sludge incinerator of construction, its front-end investment and dismounting cost reduce greatly, thereby its beneficial effect of the invention is outstanding further.In addition, traditional sludge incinerator often needs to build incinerator to such an extent that reach certain scale, and in order to handle mud continuously with fuel economy, also needs to build the storage tank or the stockyard that store fuel oil inferior or fire coal in order to improve the thermo-efficiency of fuel.These add shortcoming, just can not exist in the sludge treatment device of the present invention.In addition because incinerator possesses certain scale, so incinerator limited amount that the city can be built, mud just needs to concentrate burning disposal like this, so just need employ a lot of automobiles, river vessel transportation mud needs the short distance lighterage of consumes expensive to use, and bring secondary pollution to urban environment, and the pyrolysis processing equipment of mud of the present invention can use many simultaneously, also can shut down at any time, and the sludge treatment ability is changeable.Its current consumption of model machine of the present invention calculates (calculating with water ratio behind the mud extrusion dehydration 65%) through experiment test to handle the 1Kg dewatered sludge, plasma cutting-torch power consumption theoretical value is 1.6100 degree/1Kg mud, and cooling water amount is 0.0586m
3/ 1Kg mud, cost reaches: 0.60 yuan/1Kg mud.I.e. 600 yuans of/ton mud, and the international price of sludge incineration is 500 dollars of/ton dewatered sludges.And the cost of present domestic burning sludge is all greater than 1000 yuan of/ton mud.The pricing of comprehensive each side, the pyrolysis processing device processes unit price of mud of the present invention is less than the unit price that burns, and practical prospect is considerable.With Shanghai City is example, and water ratio 84% mud is more than 40 ton/year, and volume reduces to 1/3 of original mud after preliminary hydro-extraction, and promptly more than 130,000 tons of/year water ratio are 65% dewatered sludge.If by the pyrolysis processing equipment operation of mud of the present invention,, thereby fundamentally stopped the secondary pollution that mud landfill, short distance transportation by lighter cause urban environment with ten thousand yuan of handling problems that just can solve mud of 90O.
Description of drawings
Accompanying drawing is a pyrolyzing sludge treatment facility forward sectional view of the present invention.
Among the figure, 1. sludge inlet, 2. anodic conversion mechanism, 3. plasma body cutting torch, 4. inflammable gas outlet, 5. residue discharge opening, 6. combustion chamber, 7. cooling water inlet 8. rare gas element N
2The 9. vermicelli shape mud that enter the mouth, 10. flame passes inlet zone, 11. anode screw thread rotation mechanisms, 12. steel plates, 13. grey powder mixtures.
Embodiment
See accompanying drawing plasma body cutting torch 3, a rare gas element N is arranged on plasma body cutting torch 3
2Inlet 8.Feed rare gas element N
2Purpose be to prevent that the gas that the organism in the mud decomposites from meeting the oxygen combustion explosion, skin at plasma cutting-torch 3 is provided with cooling jacket, and be provided with cooling water inlet 7, cooling circulating water is to take away the localized hyperthermia that produces in the plasma body cutting torch working process, make cutting torch front end temperature be unlikely to unlimited rising, keep the cutting torch works better.At right opposite with respect to plasma cutting-torch 3, on another sidewall steel plate 12 of combustion chamber 6, an anode throw-over gear 2 also has been installed, and the skin of anode throw-over gear 2 also is provided with and identical cooling jacket and cooling water inlet (not the drawing in the accompanying drawing) of plasma cutting-torch 3 effects.On the sidewall steel plate 12 of combustion chamber 6, also be provided with an inflammable gas outlet 4.Anode throw-over gear 2 is by thread mechanism rotation, its with the striking of plasma cutting-torch 3 apart from regulating.When and plasma cutting-torch 3 between distance when reaching desired value, produce plasma electron flood high temperature, i.e. striking.This moment, plasma cutting-torch 3 was anodal, and anode throw-over gear is negative pole, constitutes the direct current loop, regulated plasma cutting-torch 3 and anode throw-over gear 2 then to suitable distance, opened sludge inlet 1 and just can handle mud.When 3 work of plasma body cutting torch, temperatures at localized regions in the combustion chamber, promptly the temperature of flame passes inlet zone 10 can be elevated to several thousand degree, at this moment rare gas element N
2 Inject combustion chamber 6 together in company with flame passes, be full of the rare gas element of pressure-fired in the burner 6.Enter the vermicelli shape mud 9 of combustion chamber 6 from opening for feed 1, at rare gas element N
2Protection under, through flame passes inlet zone 10, its chemical equation no longer repeats as mentioned above here.The inflammable gas that produces is collected by collection and confinement of gases mouth 4, and ash content solids residue drops to residue discharge opening 5 and discharges.Mud 9 enter combustion chamber 6 bodies to processing residence time of discharge opening 5 whole processes less than 25 seconds.
The central axis of plasma cutting-torch 3; with opening for feed 1 central axis; and the feedstock direction of mud 9 can shape in an angle; in accompanying drawing of the present invention, for sake of convenience, this angle is got 90 ° of degree; the personnel that so are skillful in field of the present invention can change this angle fully; pass through the path of flame passes 10 to increase mud, strengthen the sludge treatment effect, but all should fall within the protection domain of the present invention.
Claims (7)
1. the pyrolysis treating method of mud and equipment thereof comprise a combustion chamber (6), plasma cutting cabinet (3), and opening for feed (1) and discharge opening (5) is characterized in that: also comprise a rare gas element N
2Inlet (8), described N
2Inlet (8) is arranged on the plasma cutting cabinet (3), and injects combustion chamber (6) in company with flame passes, the installation direction of plasma cutting cabinet (3), with the feedstock direction shape of opening for feed (1) and mud (9) in an angle.
2. pyrolysis treating method that utilizes the mud of the described equipment of claim 1 is characterized in that: enter the mud (9) of combustion chamber (6) from described sludge inlet (1), at rare gas element N
2Protection under, through flame passes inlet zone (10), be subjected to temperature shock in moment, organism is volatilized, cracking, polymerization become inflammable gas and part of ash solids, its chemical equation:
Mud wherein (9) enter combustion chamber (6) body to residence time that discharge opening (5) whole process is handled less than 25 seconds.
3. according to the pyrolysis treating method of the described mud of claim 2, it is characterized in that: the gaseous tension in combustion chamber (6) keeps the measure of pressure-fired.
4. the pyrolysis treating method of mud according to claim 1 and equipment thereof, it is characterized in that: another sidewall of (6) in the combustion chamber, relative plasma cutting cabinet (3) right opposite, an anode throw-over gear (2) also has been installed, by the thread mechanism rotation, anode throw-over gear (2) can be regulated with the striking distance of plasma cutting cabinet (3).
5. the pyrolysis treating method of mud according to claim 4 and equipment thereof, it is characterized in that: the skin of described plasma cutting cabinet (3) is provided with cooling jacket, and is provided with cooling water inlet (7); The skin of anode throw-over gear (2) also is provided with identical cooling jacket and cooling water inlet.
6. the pyrolysis treating method of mud according to claim 5 and equipment thereof, it is characterized in that: plasma cutting cabinet (3) connects galvanic positive pole, and anode throw-over gear (2) connects the direct current negative pole.
7. according to the pyrolysis treating method and the equipment thereof of claim 1 or 6 described mud, it is characterized in that: on the sidewall steel plate (12) of combustion chamber (6), also be provided with an inflammable gas outlet (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021373515A CN1488590A (en) | 2002-10-08 | 2002-10-08 | Sludge pyrolysis treating method and apparatus thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021373515A CN1488590A (en) | 2002-10-08 | 2002-10-08 | Sludge pyrolysis treating method and apparatus thereof |
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| Publication Number | Publication Date |
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| CN1488590A true CN1488590A (en) | 2004-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA021373515A Pending CN1488590A (en) | 2002-10-08 | 2002-10-08 | Sludge pyrolysis treating method and apparatus thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103145307A (en) * | 2013-04-02 | 2013-06-12 | 湖北博实城乡环境能源工程有限公司 | High temperature carbonization system of sludge and carbonization process |
| CN104261645A (en) * | 2014-10-28 | 2015-01-07 | 山东博润工业技术股份有限公司 | Sludge treatment process and system |
| CN106594757A (en) * | 2016-11-07 | 2017-04-26 | 娈疯 | High-temperature plasma sludge incineration device |
-
2002
- 2002-10-08 CN CNA021373515A patent/CN1488590A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103145307A (en) * | 2013-04-02 | 2013-06-12 | 湖北博实城乡环境能源工程有限公司 | High temperature carbonization system of sludge and carbonization process |
| CN104261645A (en) * | 2014-10-28 | 2015-01-07 | 山东博润工业技术股份有限公司 | Sludge treatment process and system |
| CN104261645B (en) * | 2014-10-28 | 2016-08-17 | 山东博润工业技术股份有限公司 | A kind of sludge treatment technique and system |
| CN106594757A (en) * | 2016-11-07 | 2017-04-26 | 娈疯 | High-temperature plasma sludge incineration device |
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