CN103978007B - Fluidized bed type chromium slag pyrolysis harmless process - Google Patents
Fluidized bed type chromium slag pyrolysis harmless process Download PDFInfo
- Publication number
- CN103978007B CN103978007B CN201310511716.3A CN201310511716A CN103978007B CN 103978007 B CN103978007 B CN 103978007B CN 201310511716 A CN201310511716 A CN 201310511716A CN 103978007 B CN103978007 B CN 103978007B
- Authority
- CN
- China
- Prior art keywords
- chromium slag
- pyrolysis
- gas
- fluidized bed
- chromium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000011651 chromium Substances 0.000 title claims abstract description 103
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 title claims abstract description 77
- 229910052804 chromium Inorganic materials 0.000 title claims abstract description 77
- 239000002893 slag Substances 0.000 title claims abstract description 71
- 238000000197 pyrolysis Methods 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 51
- 230000008569 process Effects 0.000 title claims abstract description 27
- 230000003647 oxidation Effects 0.000 claims abstract description 8
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000002844 melting Methods 0.000 claims abstract description 5
- 230000008018 melting Effects 0.000 claims abstract description 5
- 239000002028 Biomass Substances 0.000 claims abstract 3
- 239000007789 gas Substances 0.000 claims description 59
- 230000009467 reduction Effects 0.000 claims description 13
- 239000012530 fluid Substances 0.000 claims description 12
- 238000002485 combustion reaction Methods 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 5
- 239000000428 dust Substances 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- JGUQDUKBUKFFRO-UHFFFAOYSA-N chembl3184098 Chemical compound ON=C(C)C(C)=NO JGUQDUKBUKFFRO-UHFFFAOYSA-N 0.000 claims description 4
- 239000000446 fuel Substances 0.000 claims description 4
- 239000002737 fuel gas Substances 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 239000010802 sludge Substances 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 239000002699 waste material Substances 0.000 claims description 3
- 238000010411 cooking Methods 0.000 claims 1
- 239000010794 food waste Substances 0.000 claims 1
- 239000010813 municipal solid waste Substances 0.000 claims 1
- 239000010815 organic waste Substances 0.000 claims 1
- 244000144977 poultry Species 0.000 claims 1
- 230000001603 reducing effect Effects 0.000 abstract description 3
- 238000005243 fluidization Methods 0.000 abstract 1
- 230000014759 maintenance of location Effects 0.000 abstract 1
- 239000002296 pyrolytic carbon Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- 231100000419 toxicity Toxicity 0.000 description 4
- 230000001988 toxicity Effects 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 231100000614 poison Toxicity 0.000 description 3
- 230000035484 reaction time Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000007233 catalytic pyrolysis Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 239000002920 hazardous waste Substances 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000003440 toxic substance Substances 0.000 description 2
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001784 detoxification Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- SOCTUWSJJQCPFX-UHFFFAOYSA-N dichromate(2-) Chemical compound [O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O SOCTUWSJJQCPFX-UHFFFAOYSA-N 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 1
Landscapes
- Gasification And Melting Of Waste (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to a fluidized bed type chromium slag pyrolysis harmless process which is characterized by comprising the following steps: respectively putting the biomass and the chromium slag into a high-temperature fluidized bed pyrolysis furnace, quickly melting and pyrolyzing the biomass in the process, releasing a large amount of pyrolysis gas, and reducing Cr (VI). Meanwhile, the pyrolytic carbon residue is attached to the surface of the chromium slag in the fluidization process, and the reduced Cr (III) in the chromium slag is protected from secondary oxidation. The chromium slag can effectively catalyze and crack the generated pyrolysis gas, thereby avoiding the generation of a large amount of highly-polluted tar gas. Compared with the traditional pyrolysis process, the process greatly shortens the retention time, can generate energy tail gas with high calorific value, and avoids the treatment and disposal of the tail gas.
Description
Technical field
The present invention is a kind of fluidized bed type chromium slag pyrolysis butanedionedioxime, by technology controlling and process, and can by while Cr (VI) in chromium slag efficiently reduction, Reaction time shorten greatly, simultaneously tail gas by as using energy source, while economize energy, can avoid treating tail gas.The invention belongs to environmental protection technical field.
Background technology
Chromium slag is the accessory substance discharged in bichromate production process.Because of wherein containing water-solubility Cr (VI) and have great toxicity, if the air storage without process, can cause pollution in various degree to underground water source, river or marine site, serious is detrimental to health and vegeto-animal growth.
On the whole, the detoxification (Cr (VI) high by toxicity becomes Cr (III)) of current chromium slag is divided into wet method detoxifcation and dry detoxified two large classes.Wet method adds reducing agent by Cr in chromium slag by passing through
6+in the method for liquid-phase reduction removing toxic substances.But this method reagent consumption is large, and cost is high, be also difficult to extensive for administering chromium slag at present.
Dry detoxified is make Cr (VI) in chromium slag be reduced to the object that Cr (III) reaches removing toxic substances by the strong reducing action of high-temperature reductibility atmosphere.Traditional dry treatment makees reducing agent with carbon, is heated to about 1000 DEG C poisonous Cr in restoring property atmosphere
6+be reduced into nontoxic Cr
6+, this method large-scale application, in the improvement of chromium slag, has certain economic benefit, but pollutes with secondary dust in processing procedure, and cost of investment is high, and energy consumption is large.
Number of patent application 200710041125.9 describes a kind of technique utilizing pyrolytic technique process chromium slag.This technique will utilize mud by Cr (VI) reduction in chromium slag under high temperature condition, this technique treatment of wastes with processes of wastes against one another, and reaction temperature be reduced, and greatly reduce cost.But this technique has many defects, technique adopts rotary kiln technology on the one hand, and material time of staying in kiln is longer, and therefore treatment effeciency is lower.On the other hand, because organic matter mixes at low-temperature space with chromium slag by this technique, the two is in the moving process of high-temperature region, in mud, organic matter enters tail gas by constantly producing tar gas along air-flow, and containing carcinogenic substances such as a large amount of such as polycyclic aromatic hydrocarbons in tar gas, and easily discharge with the form of PM2.5 in cooling procedure, it is very harmful, therefore needs to carry out after-treatment to tail gas.In addition, in this technique, the organic tar gas produced is diluted by high temperature gas flow, and cause reducibility gas concentration in air-flow to reduce, reducing atmosphere is not strong, and Cr (VI) reduction efficiency is reduced.
Summary of the invention
For the deficiencies in the prior art, the present invention is a kind of novel chromium slag pyrolysis treating method, pass through technology controlling and process, can by while Cr (VI) in chromium slag efficiently reduction, Reaction time shorten greatly, simultaneously tail gas by as using energy source, while economize energy, can avoid treating tail gas.
This process technology scheme is: render in high temperature fluidized bed pyrolysis oven respectively by living beings and chromium slag, and living beings Flashmelt pyrolysis discharge a large amount of pyrolysis gas in the process, reduces Cr (VI).Be attached to chromium slag surface in the carbon residue of pyrolysis simultaneously fluid mapper process, the Cr (III) reduced in protection chromium slag is not by secondary oxidation.And the pyrolysis gas of generation is also carried out effective catalytic pyrolysis by chromium slag, avoid the generation of a large amount of high pollution tar gas.
Method of the present invention specifically comprises the following steps:
1. chromium slag is broken, and collection cut size, at the particle of 0.5-3mm, is delivered to pyrolysis oven from top chromium slag charging aperture.Through fluosolids, react with pyrolysis gas, Cr (VI) is reduced.Be attached to chromium slag surface in the carbon residue of pyrolysis simultaneously fluid mapper process, the Cr (III) reduced in protection chromium slag is not by secondary oxidation.Chromium slag finally flows out from discharging opening and enters cooling device, is cooled to rapidly less than 200 DEG C discharges after water-cooled.The stable gas pressure in controlled cooling model equipment exit is within the scope of-0.5 ~ 50kPa simultaneously;
2. living beings enter fluidized bed pyrolysis stove on the downside of chromium slag charging aperture, and rapid melting pyrolysis also divides present chromium solid impurity particle surface, discharges a large amount of pyrolysis gas simultaneously.The mass ratio controlling living beings and chromium slag is: living beings: chromium slag=(0.3-0.7): 1;
3. control coefficient of excess air and be less than 1 in reduction combustion furnace, the high temperature gas flow temperature of generation at 550 ~ 800 DEG C, oxygen content <0.5%, thus effective pyrolysis is carried out to chromium slag sludge mixture.High temperature gas flow enters from fluidized bed pyrolysis furnace bottom, heated fluidized bed, makes fluidized-bed temperature at 450 ~ 600 DEG C.High temperature gas flow enters tail gas with the pyrolysis gas discharged subsequently, and after dust collecting process, portion gas is as reduction combustion furnace thermal source and fuels sources, and portion gas utilizes further as fuel gas.
Compare traditional pyrolysis treating method, this method has following advantage:
1. chromium slag is shorter in the fluid bed time of staying, therefore substantially reduces the reaction time, improves reaction efficiency;
2. chromium slag in fluid bed can fully catalytic pyrolysis living beings produce tar gas, improve the combustibility of pyrolysis gas, period is more easily secondary use.The tail gas of part containing pyrolysis gas can be used as energy sources for heating fluid bed, reduces the consumption of fossil energy;
3. tail gas contains the pyrolysis gas with good combustion performance, can utilize by secondary, achieves resource, saves the process investment of tail gas simultaneously;
4. different from conventional pyrolytic technique, because chromium slag heat transfer efficiency in fluid bed is poor, therefore its heat taken away is less, and decreases the cool time of chromium slag simultaneously, reduces Cr (III) by the possibility of secondary oxidation.Fluid bed can make living beings be attached to chromium slag surface simultaneously, guarantees that Cr (III) is not by secondary oxidation further.
Accompanying drawing explanation
Fig. 1 is process flow diagram.
concrete embodiment is as follows:
1. chromium slag is broken, and collection cut size, at the particle of 0.5-3mm, is delivered to pyrolysis oven from top chromium slag charging aperture.Through fluosolids, react with pyrolysis gas, Cr (VI) is reduced.Be attached to chromium slag surface in the carbon residue of pyrolysis simultaneously fluid mapper process, the Cr (III) reduced in protection chromium slag is not by secondary oxidation.Chromium slag finally flows out from discharging opening, is cooled to rapidly less than 200 DEG C discharges after water-cooled;
2. living beings enter fluidized bed pyrolysis stove on the downside of chromium slag charging aperture, and rapid melting pyrolysis also divides present chromium solid impurity particle surface, discharges a large amount of pyrolysis gas simultaneously.The mass ratio controlling living beings and chromium slag is: living beings: chromium slag=0.3:1;
3. control coefficient of excess air and be less than 1 in reduction combustion furnace, the high temperature gas flow temperature of generation at 600 ~ 800 DEG C, oxygen content <0.5%, thus effective pyrolysis is carried out to chromium slag sludge mixture.High temperature gas flow enters from fluidized bed pyrolysis furnace bottom, heated fluidized bed, makes fluidized-bed temperature at 500 ~ 600 DEG C.High temperature gas flow enters tail gas with the pyrolysis gas discharged subsequently, and after dust collecting process, portion gas is as reduction combustion furnace thermal source and fuels sources, and portion gas utilizes further as fuel gas;
4. use GB GB5086.2 horizontal vibration method to carry out toxicity characteristic leaching procedure to chromium slag after process, recording water soluble chromium is 0.01mg/L, is significantly less than GB GB5085.3 hazardous waste upper limit 1.5mg/L.Chromium slag mean residence time in fluid bed is no more than 3min, is significantly less than the 30min of conventional rotary kiln.
Example 2:
1. chromium slag is broken, and collection cut size, at the particle of 0.5-3mm, is delivered to pyrolysis oven from top chromium slag charging aperture.Through fluosolids, react with pyrolysis gas, Cr (VI) is reduced.Be attached to chromium slag surface in the carbon residue of pyrolysis simultaneously fluid mapper process, the Cr (III) reduced in protection chromium slag is not by secondary oxidation.Chromium slag finally flows out from discharging opening, is cooled to rapidly less than 200 DEG C discharges after water-cooled;
2. living beings enter fluidized bed pyrolysis stove on the downside of chromium slag charging aperture, and rapid melting pyrolysis also divides present chromium solid impurity particle surface, discharges a large amount of pyrolysis gas simultaneously.The mass ratio controlling living beings and chromium slag is: living beings: chromium slag=0.7:1;
3. control coefficient of excess air and be less than 1 in reduction combustion furnace, the high temperature gas flow temperature of generation at 550 ~ 650 DEG C, oxygen content <0.5%, thus effective pyrolysis is carried out to chromium slag sludge mixture.High temperature gas flow enters from fluidized bed pyrolysis furnace bottom, heated fluidized bed, makes fluidized-bed temperature at 450 ~ 550 DEG C.High temperature gas flow enters tail gas with the pyrolysis gas discharged subsequently, and after dust collecting process, portion gas is as reduction combustion furnace thermal source and fuels sources, and portion gas utilizes further as fuel gas;
4. use GB GB5086.2 horizontal vibration method to carry out toxicity characteristic leaching procedure to chromium slag after process, recording water soluble chromium is 0.01mg/L, is significantly less than GB GB5085.3 hazardous waste upper limit 1.5mg/L.Chromium slag mean residence time in fluid bed is no more than 3min, is significantly less than the 30min of conventional rotary kiln.
Claims (2)
1. a fluidized bed type chromium slag pyrolysis butanedionedioxime, is characterized in that, comprise the steps:
(1) chromium slag is broken, collection cut size, at the particle of 0.5-3mm, is delivered to pyrolysis oven from top chromium slag charging aperture; Through fluosolids, react with pyrolysis gas, Cr (VI) is reduced; Be attached to chromium slag surface in the carbon residue of pyrolysis simultaneously fluid mapper process, the Cr (III) reduced in protection chromium slag is not by secondary oxidation; Chromium slag finally flows out from bottom discharge mouth and enters cooling device, is cooled to rapidly less than 200 DEG C discharges after water-cooled; The stable gas pressure in controlled cooling model equipment exit is within the scope of-0.5 ~ 50kPa simultaneously;
(2) biomass feed inlet of living beings on the downside of chromium slag charging aperture enters fluidized bed pyrolysis stove, and rapid melting pyrolysis also divides present chromium solid impurity particle surface, discharges a large amount of pyrolysis gas simultaneously; The mass ratio controlling living beings and chromium slag is: living beings: chromium slag=(0.3-0.7): 1;
(3) control coefficient of excess air and be less than 1 in reduction combustion furnace, the high temperature gas flow temperature of generation at 550 ~ 800 DEG C, oxygen content <0.5%, thus effective pyrolysis is carried out to chromium slag sludge mixture; High temperature gas flow enters from fluidized bed pyrolysis furnace bottom, heated fluidized bed, makes fluidized-bed temperature at 450 ~ 600 DEG C; High temperature gas flow is flowed out by gas outlet with the pyrolysis gas discharged subsequently, and after dust collecting process, portion gas is as reduction combustion furnace thermal source and fuels sources, and portion gas utilizes further as fuel gas.
2. a kind of fluidized bed type chromium slag pyrolysis butanedionedioxime according to claim 1, it is characterized in that, living beings used make a general reference various organic waste, comprise rubbish from cooking, mud, food waste of aquatic, agriculture, woods, poultry, waste of aquatic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310511716.3A CN103978007B (en) | 2013-10-28 | 2013-10-28 | Fluidized bed type chromium slag pyrolysis harmless process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310511716.3A CN103978007B (en) | 2013-10-28 | 2013-10-28 | Fluidized bed type chromium slag pyrolysis harmless process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103978007A CN103978007A (en) | 2014-08-13 |
| CN103978007B true CN103978007B (en) | 2016-01-13 |
Family
ID=51270313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310511716.3A Active CN103978007B (en) | 2013-10-28 | 2013-10-28 | Fluidized bed type chromium slag pyrolysis harmless process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103978007B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105524640B (en) * | 2016-01-19 | 2019-07-30 | 青岛理工大学 | Method for preparing energy gas by using chlorine-free plastic and simultaneously harmlessly treating chromium slag |
| CN105524635B (en) | 2016-01-19 | 2018-04-10 | 青岛理工大学 | Synchronous technology for recycling plastics and harmlessly treating chromium slag by using waste heat of steel slag |
| CN105694938B (en) * | 2016-01-19 | 2019-05-24 | 青岛理工大学 | Method for preparing energy oil gas and simultaneously harmlessly treating chromium slag by using chlorine-containing plastics |
| CN105598132B (en) * | 2016-01-19 | 2017-09-29 | 青岛理工大学 | Method for synchronously recycling biomass and harmlessly treating chromium slag by using waste heat of blast furnace slag |
| CN105524639B (en) * | 2016-01-19 | 2019-03-01 | 青岛理工大学 | Method for preparing energy gas by using plastics and simultaneously harmlessly treating chromium slag |
| CN105694987B (en) * | 2016-01-19 | 2019-05-24 | 青岛理工大学 | Method for preparing energy gas by using biomass and simultaneously harmlessly treating chromium slag |
| CN105537244B (en) * | 2016-01-19 | 2017-09-29 | 青岛理工大学 | Method for synchronously recycling biomass and harmlessly treating chromium slag by using waste heat of steel slag |
| CN105542818B (en) * | 2016-01-19 | 2018-04-20 | 青岛理工大学 | Synchronization technology for recycling sludge and harmlessly treating chromium slag by using steel slag waste heat |
| CN106824979A (en) * | 2017-01-04 | 2017-06-13 | 长沙汇聚环境技术有限公司 | A kind of cooperative disposal method of Cr VI slag and biomass castoff |
| CN108374065B (en) * | 2017-03-13 | 2020-07-03 | 安徽工业大学 | Method for co-producing combustible gas and direct reduced iron |
| CN107243500B (en) * | 2017-06-28 | 2019-05-21 | 河南科技大学 | A kind of high-temp. vortex melting formula chromium residue detoxifying device and its detoxification |
| CN111117682A (en) * | 2020-01-13 | 2020-05-08 | 王凯军 | Chromium-containing solid waste and organic material collaborative pyrolysis harmless treatment device and method |
| CN111252882B (en) * | 2020-02-29 | 2022-09-23 | 广州绿邦环境技术有限公司 | Chromium slag resource utilization equipment and treatment process thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3892639A (en) * | 1974-09-11 | 1975-07-01 | Us Interior | Extraction of metal values from lateritic ores |
| CN101053908A (en) * | 2007-05-24 | 2007-10-17 | 上海交通大学 | Pyrolytic treatment method for chromium slag |
| CN101318064A (en) * | 2007-06-07 | 2008-12-10 | 四川省安县银河建化集团有限公司 | Method for detoxifying chromium slag by using reducing gas |
| CN101898019A (en) * | 2010-08-13 | 2010-12-01 | 上海交通大学 | Treatment method for decontaminating chromic slag by utilizing eutrophicated algal residue |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012149168A (en) * | 2011-01-19 | 2012-08-09 | Toshiba Corp | Method of treating waste ion exchange resin containing chromium |
-
2013
- 2013-10-28 CN CN201310511716.3A patent/CN103978007B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3892639A (en) * | 1974-09-11 | 1975-07-01 | Us Interior | Extraction of metal values from lateritic ores |
| CN101053908A (en) * | 2007-05-24 | 2007-10-17 | 上海交通大学 | Pyrolytic treatment method for chromium slag |
| CN101318064A (en) * | 2007-06-07 | 2008-12-10 | 四川省安县银河建化集团有限公司 | Method for detoxifying chromium slag by using reducing gas |
| CN101898019A (en) * | 2010-08-13 | 2010-12-01 | 上海交通大学 | Treatment method for decontaminating chromic slag by utilizing eutrophicated algal residue |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103978007A (en) | 2014-08-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103978007B (en) | Fluidized bed type chromium slag pyrolysis harmless process | |
| CN103977529B (en) | Chromium slag pyrolysis treatment method with low tar emission | |
| WO2017128943A1 (en) | Anaerobic catalytic thermal cracking method for solid waste | |
| CN108176703B (en) | Harmless treatment method and system for multi-element waste | |
| CN103438461B (en) | A kind of integral type pyrolysis restoring system and waste disposal method | |
| CN103978015B (en) | Method for dry-type reduction innocent treatment of chromium slag | |
| CN103978006B (en) | High-efficiency low-consumption low-pollution chromium slag pyrolysis treatment method | |
| CN105316014A (en) | Method and system for pyrolyzing biomass | |
| CN104261645B (en) | A kind of sludge treatment technique and system | |
| CN107879585B (en) | Sludge resource utilization device and method | |
| CN108426250A (en) | A kind of domestic garbage gasification melting electricity generation system | |
| CN109893997B (en) | Biomass boiler fuel preprocess method, pretreatment unit and denitration method for flue gas | |
| CN106479527A (en) | One kind carries out rubbish charcoal processing system using straw burning heat release | |
| CN206958931U (en) | A kind of waste incinerator bioxin emission-reducing system based on addition inhibitor | |
| CN205061973U (en) | System for indirect heating formula pyrolysis and carbonization living beings | |
| CN103894412B (en) | A kind of soil remediation method for upgrading | |
| CN103791503B (en) | A kind of organic solid waste gasification burning integrated apparatus and method | |
| CN108359499A (en) | Fixed-bed gasification furnace, process system and garbage gasifying method for refuse gasification | |
| KR101699057B1 (en) | Total amount of useful energy conversion system of waste resources | |
| CN208613349U (en) | Polynary waste innocuity disposal system | |
| CN101648771A (en) | Sludge drying and carbonizing processing device | |
| RU2570331C1 (en) | Method for processing solid household and industrial wastes and device for thereof realisation | |
| CN203036646U (en) | Incineration disposal system of oily sludge | |
| CN111115570B (en) | Chemical chain conversion recovery non-magnetic metal oxide parallel hydrogen production system and process | |
| CN211896797U (en) | Domestic waste pyrolysis carbomorphism processing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Dalei Inventor after: Sun Xiaoguang Inventor after: Liu Xia Inventor after: Lujing Inventor after: Lu Liang Inventor before: Zhang Dalei Inventor before: Lujing Inventor before: Lu Liang |
|
| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181224 Address after: 266011 Xueyuan Hotel, No. 18 Fushun Road, North District, Qingdao City, Shandong Province Patentee after: Guangda Institute of Environmental Technology (Qingdao) Co.,Ltd. Address before: 266520 No. 2 Changjiang Road, Qingdao economic and Technological Development Zone, Shandong Patentee before: Qingdao University of Technology |