CN105598132B - Method for synchronously recycling biomass and harmlessly treating chromium slag by using waste heat of blast furnace slag - Google Patents
Method for synchronously recycling biomass and harmlessly treating chromium slag by using waste heat of blast furnace slag Download PDFInfo
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- CN105598132B CN105598132B CN201610035340.7A CN201610035340A CN105598132B CN 105598132 B CN105598132 B CN 105598132B CN 201610035340 A CN201610035340 A CN 201610035340A CN 105598132 B CN105598132 B CN 105598132B
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- 239000002893 slag Substances 0.000 title claims abstract description 114
- 239000002028 Biomass Substances 0.000 title claims abstract description 42
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 title claims description 81
- 239000011651 chromium Substances 0.000 title claims description 79
- 229910052804 chromium Inorganic materials 0.000 title claims description 75
- 239000002918 waste heat Substances 0.000 title claims description 9
- 238000000034 method Methods 0.000 title abstract description 32
- 238000004064 recycling Methods 0.000 title 1
- 239000007789 gas Substances 0.000 claims abstract description 58
- 238000001816 cooling Methods 0.000 claims abstract description 44
- 239000000498 cooling water Substances 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000006243 chemical reaction Methods 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 12
- 230000032258 transport Effects 0.000 claims description 12
- 238000001833 catalytic reforming Methods 0.000 claims description 10
- 238000000197 pyrolysis Methods 0.000 claims description 9
- 206010054949 Metaplasia Diseases 0.000 claims description 8
- 230000015689 metaplastic ossification Effects 0.000 claims description 8
- 230000009467 reduction Effects 0.000 claims description 8
- 238000005516 engineering process Methods 0.000 claims description 6
- 239000000571 coke Substances 0.000 claims description 5
- 238000001354 calcination Methods 0.000 claims description 4
- 238000009833 condensation Methods 0.000 claims description 4
- 230000005494 condensation Effects 0.000 claims description 4
- 230000018044 dehydration Effects 0.000 claims description 4
- 238000006297 dehydration reaction Methods 0.000 claims description 4
- 238000005469 granulation Methods 0.000 claims description 4
- 230000003179 granulation Effects 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 229910052593 corundum Inorganic materials 0.000 claims description 2
- 239000010802 sludge Substances 0.000 claims description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 3
- 229910000514 dolomite Inorganic materials 0.000 claims 1
- 239000010459 dolomite Substances 0.000 claims 1
- 239000011943 nanocatalyst Substances 0.000 claims 1
- 229920003023 plastic Polymers 0.000 claims 1
- 239000004033 plastic Substances 0.000 claims 1
- 230000010512 thermal transition Effects 0.000 claims 1
- 238000005336 cracking Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 6
- 238000006555 catalytic reaction Methods 0.000 abstract description 3
- 239000002737 fuel gas Substances 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 230000003197 catalytic effect Effects 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 abstract 7
- 239000010959 steel Substances 0.000 abstract 7
- 238000004886 process control Methods 0.000 abstract 1
- 239000008246 gaseous mixture Substances 0.000 description 7
- 230000008901 benefit Effects 0.000 description 4
- 231100000419 toxicity Toxicity 0.000 description 4
- 230000001988 toxicity Effects 0.000 description 4
- 239000002920 hazardous waste Substances 0.000 description 3
- 231100000614 poison Toxicity 0.000 description 3
- 239000002585 base Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 2
- 238000004939 coking Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001603 reducing effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000011285 coke tar Substances 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
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000011269 tar Substances 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
- B09B3/45—Steam treatment, e.g. supercritical water gasification or oxidation
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to a novel method for cracking biomass by using liquid steel slag and preparing high-quality fuel gas. Through process control, the liquid steel slag can be effectively cooled, the heat energy of the liquid steel slag can be effectively utilized, and meanwhile, the biomass is converted into high-quality energy gas. The technical scheme of the process is as follows: liquid steel slag is heated and gasified with biomass and cooling water, biomass cracking gas and water vapor are subjected to catalytic reaction under the catalytic action of the steel slag, tar gradually generates energy gas mainly comprising CO and H2, and Cl and CO2 in the energy gas are absorbed by alkaline substances in the steel slag. The process greatly saves energy sources and obtains high-grade energy source gas while cooling the steel slag.
Description
Technical field
The present invention is synchronization process chromium slag and biomass and the method for cooling down blast furnace slag, in innoxious chromium slag, is obtained
While high-grade energy gas, the energy is greatlyd save, simultaneously.Belong to environmental protection and low-carbon technology field.
Background technology
Chromium slag is the accessory substance discharged in bichromate production process.Have because wherein containing water soluble hexavalent chromium greatly
Toxicity, if the air storage without processing, different degrees of pollution can be caused to underground water source, river or marine site, sternly
The growth being detrimental to health with animals and plants of weight.
On the whole, the detoxification of current chromium slag（The high Cr VI of toxicity is changed into trivalent chromium）It is divided into wet method detoxifcation
With dry detoxified two major class.But there is respective problem.Wet method is by by adding reducing agent by Cr in chromium slag6+In liquid-phase reduction solution
The method of poison.But method reagent consumption is big, and cost is high, also it is difficult at present extensive for administering chromium slag.Dry detoxified is both logical
Crossing the strong reducing action of high temperature reducing atmosphere makes hexavalent chrome reduction in chromium slag be the purpose that trivalent chromium reaches removing toxic substances.Traditional is dry
It is to make reducing agent with carbon that method, which is administered, and 1000 DEG C or so are heated in restoring property atmosphere poisonous Cr6+It is reduced into nontoxic Cr6 +, large-scale application, in the improvement of chromium slag, there is certain economic benefit to the method, but is polluted in processing procedure with secondary dust,
And cost of investment is high, energy consumption is big.
On the other hand, China produces substantial amounts of biomass every year, and nowadays most of biomass is not utilized effectively, and is carried out
Field is burned, and is formd haze, has been had a strong impact on atmospheric environment.It is a kind of biomass economy method that biomass pyrolytic, which is utilized, but
Its product tar is generally difficult to utilize, the problem of also there is equipment coking.The patent of application number 2014102110190 describes one
The method for reforming cracking fuel gas using sludge and biomass catalyzing is planted, biomass coke tar is converted into combustible gas by this method
Method, although generate the fuel gas more easily utilized, but its CO2 content is high, poor quality；1000 DEG C or so height are needed simultaneously
Temperature, energy consumption is big, and utilization rate is relatively low；In addition the method also needs to utilize CaO bases, Al2O3 base catalyst costly.
In addition, China produces substantial amounts of blast furnace slag every year, liquid blast furnace temperature is high, 1500-1700 DEG C of temperature, if energy
Utilize carefully, will be valuable resource.But current few technologies effectively utilize heat energy therein.
The content of the invention
In view of the shortcomings of the prior art, the present invention is at the processing of a kind of new chromium slag, biomass and liquid blast furnace
Put method.By technology controlling and process, liquid blast furnace can effectively be cooled down and effectively utilize its heat energy, while biomass is turned
High-quality energy gas is turned to, and by while Cr VI is efficiently reduced in chromium slag.
This process technology scheme is：By liquid blast furnace heating and gasified bio-matter and cooling water, given up followed by danger
Thing chromium slag high-temperature catalytic crack biomass cracking gas, is more thoroughly converted biomass into low under conditions of steam gasification
The high temperature energy gas of molecule（H2, CO and CH4 etc.）, it is to avoid the coking on chromium slag surface.And the high temperature that biomass is produced simultaneously
Energy gas again heats chromium slag, while making hexavalent chrome reduction in chromium slag be trivalent chromium, low temperature chromium slag is allowed in passing to energy gas
Cooled down, and the Cl and CO2 in energy gas are absorbed by the alkaline matter in chromium slag.This technique is same innoxious chromium slag
When, the energy is greatlyd save, while obtaining high-grade energy gas.
The method of the present invention specifically includes following steps：
（1）The liquid blast furnace of 1500-1700 DEG C of temperature is poured onto nodulizer arrival end by slag ladle, after granulation, from going out
Mouth end enters revolution reaction cooling device porch, is mixed with biomass, and by biomass pyrolytic, subsequent blast furnace slag and biomass
Pyrolysis coke transports to the revolution reaction cooling device port of export, is put through cooling down water cooling heel row；Cool down the cooling water and height of blast furnace slag
The continuous input quality ratio of clinker is 1：(1-8)；The continuous input quality ratio of biomass and blast furnace slag is 1：(1-8)；
（2）Step（1）In cooling water added from the revolution reaction cooling device port of export, spray to blast furnace slag surface is heated
It is converted into vapor；Vapor then with blast furnace slag reverse flow and exchanging heat, transports to revolution reaction cooling device arrival end and life
Material pyrolysis gas is mixed；Gaseous mixture is then transported to nodulizer and exchanged heat with high temperature blast furnace slag, is converted into 800-1400 DEG C of height
Warm gaseous mixture；
（3）By step（2）In gaseous mixture transport to catalytic reforming furnace, the chromium slag in stove after load calcining, mixed gas adds
Chromium slag inside heat carries out catalytic reforming in the range of 800-1200 DEG C, generates energy gas；
（4）Step（3）The high temperature energy gas of middle generation is subsequently input in internal heat type rotary kiln end, continuously defeated with kiln tail
The chromium slag brought carries out heat exchange processing, while hexavalent chrome reduction in chromium slag is trivalent chromium by energy gas；High temperature energy gas
Temperature is reduced to after less than 250 DEG C, from rotary kiln discharge, into condensing unit, between cooling water reverse flow and occurring
Connect and collected after heat exchange, condensation dehydration；High temperature chromium slag after heat exchange is discharged from rotary kiln end, into cooling device, uses cooling
Water is cooled to discharge after less than 150 DEG C, while controlling cooling device air pressure inside to be higher than room using produced vapor
Outer air pressure 0-30kp；The mass ratio control of the high temperature energy gas continuously generated and the chromium slag continuously inputted exists（1-8）：4；
（5）Step（4）High temperature chromium slag after middle heat exchange is discharged from rotary kiln end, into cooling device, uses cooling water
Discharge after less than 150 DEG C is cooled to, while controlling cooling device air pressure inside higher than outdoor using produced vapor
Air pressure 0-30kp；
Compared to traditional biomass treatment method, this method has following advantage：
1. using the heating of high-temperature liquid state blast furnace slag and gasified bio-matter and cooling water, produce biomass cracking product and water
Steam, is that pyrolysis product catalysis preparation high-quality energy gas creates conditions；Heat energy is taken full advantage of simultaneously, the energy is substantially increased
Efficiency；
2. utilize chromium slag hazardous waste chromium slag catalysis biomass, it is to avoid while using expensive catalyst, also achieve chromium
Slag it is innoxious；
3. because of the effect of high-temperature steam so that chromium slag is after reduction treatment, and surface coke content greatly reduces, be conducive to place
The secondary utilization of chromium slag after reason；
4. heated and innoxious chromium slag using the high temperature energy gas produced by after catalytic reforming, while having saved extra
The equipment of cooling down high-temperature gas；
5. taking full advantage of the water vapour of each stage of technique generation, without extra heat source auxiliary production steam, be conducive to
Energy-conservation, while reduce the discharge of steam, it is to avoid secondary thermal pollution；
6. accessory substance CO2 generated in the energy gas that biomass catalyzing cracking is produced etc. can be by alkali such as the CaO in chromium slag
Property material absorbing, improve fuel product quality；
7. chromium slag cooling device is using water cooling chromium slag is cooled down, while producing steam, aggrandizement apparatus air pressure inside hinders
Only extraneous air enters system, the trivalent chromium after redox, while avoiding using extra device control air pressure.
Brief description of the drawings
Fig. 1 is process chart
Fig. 2 is nodulizer schematic diagram
Wherein 1 nodulizer entrance；At 2 cracking gases and steam entry；At 3 cracking gases and steam outlet；4 blast furnace slags are made
Grain outlet；5 rotating disks
Example is embodied as follows：
（1）The liquid blast furnace of 1500-1700 DEG C of temperature is poured onto nodulizer arrival end by slag ladle, after granulation, from going out
Mouth end enters revolution reaction cooling device porch, is mixed with biomass, and by biomass pyrolytic, subsequent blast furnace slag and biomass
Pyrolysis coke transports to the revolution reaction cooling device port of export, is put through cooling down water cooling heel row；Cool down the cooling water and height of blast furnace slag
The continuous input quality ratio of clinker is 1：2；The continuous input quality ratio of biomass and blast furnace slag is 1：2；
（2）Step（1）In cooling water added from the revolution reaction cooling device port of export, spray to blast furnace slag surface is heated
It is converted into vapor；Vapor then with blast furnace slag reverse flow and exchanging heat, transports to revolution reaction cooling device arrival end and life
Material pyrolysis gas is mixed；Gaseous mixture is then transported to nodulizer and exchanged heat with high temperature blast furnace slag, and the high temperature for being converted into 1000 DEG C is mixed
Close gas；
（3）By step（2）In gaseous mixture transport to catalytic reforming furnace, the chromium slag in stove after load calcining, mixed gas adds
Chromium slag inside heat carries out catalytic reforming in the range of 800 DEG C, generates energy gas；
（4）Step（3）The high temperature energy gas of middle generation is subsequently input in internal heat type rotary kiln end, continuously defeated with kiln tail
The chromium slag brought carries out heat exchange processing, while hexavalent chrome reduction in chromium slag is trivalent chromium by energy gas；High temperature energy gas
Temperature is reduced to after less than 250 DEG C, from rotary kiln discharge, into condensing unit, between cooling water reverse flow and occurring
Connect and collected after heat exchange, condensation dehydration；High temperature chromium slag after heat exchange is discharged from rotary kiln end, into cooling device, uses cooling
Water is cooled to discharge after less than 150 DEG C, while controlling cooling device air pressure inside to be higher than room using produced vapor
Outer air pressure 0-30kp；The mass ratio of the high temperature energy gas continuously generated and the chromium slag continuously inputted is controlled 2：1；
（5）Step（4）High temperature chromium slag after middle heat exchange is discharged from rotary kiln end, into cooling device, uses cooling water
Discharge after less than 150 DEG C is cooled to, while controlling cooling device air pressure inside higher than outdoor using produced vapor
Air pressure 0-30kp；
（6）Toxicity characteristic leaching procedure is carried out to chromium slag after processing using the horizontal vibration methods of national standard GB 5086.2, water solubility is measured
Chromium is 0.01mg/L, is significantly less than the hazardous waste upper limit 1.5mg/L of national standard GB 5085.3；Biomass per ton produces 0.6-0.7t
Energy gas, flammable Gas content is higher than 80%.
Example 2：
（1）The liquid blast furnace of 1500-1700 DEG C of temperature is poured onto nodulizer arrival end by slag ladle, after granulation, from going out
Mouth end enters revolution reaction cooling device porch, is mixed with biomass, and by biomass pyrolytic, subsequent blast furnace slag and biomass
Pyrolysis coke transports to the revolution reaction cooling device port of export, is put through cooling down water cooling heel row；Cool down the cooling water and height of blast furnace slag
The continuous input quality ratio of clinker is 1：4；The continuous input quality ratio of biomass and blast furnace slag is 1：2；
（2）Step（1）In cooling water added from the revolution reaction cooling device port of export, spray to blast furnace slag surface is heated
It is converted into vapor；Vapor then with blast furnace slag reverse flow and exchanging heat, transports to revolution reaction cooling device arrival end and life
Material pyrolysis gas is mixed；Gaseous mixture is then transported to nodulizer and exchanged heat with high temperature blast furnace slag, and the high temperature for being converted into 1400 DEG C is mixed
Close gas；
（3）By step（2）In gaseous mixture transport to catalytic reforming furnace, the chromium slag in stove after load calcining, mixed gas adds
Chromium slag inside heat carries out catalytic reforming in the range of 800 DEG C, generates energy gas；
（4）Step（3）The high temperature energy gas of middle generation is subsequently input in internal heat type rotary kiln end, continuously defeated with kiln tail
The chromium slag brought carries out heat exchange processing, while hexavalent chrome reduction in chromium slag is trivalent chromium by energy gas；High temperature energy gas
Temperature is reduced to after less than 250 DEG C, from rotary kiln discharge, into condensing unit, between cooling water reverse flow and occurring
Connect and collected after heat exchange, condensation dehydration；High temperature chromium slag after heat exchange is discharged from rotary kiln end, into cooling device, uses cooling
Water is cooled to discharge after less than 150 DEG C, while controlling cooling device air pressure inside to be higher than room using produced vapor
Outer air pressure 0-30kp；The mass ratio of the high temperature energy gas continuously generated and the chromium slag continuously inputted is controlled 1：1；
（5）Step（4）High temperature chromium slag after middle heat exchange is discharged from rotary kiln end, into cooling device, uses cooling water
Discharge after less than 150 DEG C is cooled to, while controlling cooling device air pressure inside higher than outdoor using produced vapor
Air pressure 0-30kp；
（6）Toxicity characteristic leaching procedure is carried out to chromium slag after processing using the horizontal vibration methods of national standard GB 5086.2, water solubility is measured
Chromium is 0.01mg/L, is significantly less than the hazardous waste upper limit 1.5mg/L of national standard GB 5085.3；Biomass per ton produces 0.6-0.7t
Energy gas, flammable Gas content is higher than 80%.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than is limited；Although with reference to foregoing
The present invention is described in detail embodiment, for the person of ordinary skill of the art, still can be to foregoing
Technical scheme described in embodiment is modified, or carries out equivalent substitution to which part technical characteristic；And these are repaiied
Change or replace, the essence of appropriate technical solution is departed from the spirit and scope of claimed technical solution of the invention.
Claims (7)
1. the technology of a kind of utilization blast furnace slag waste heat isochronous resources metaplasia material and innoxious chromium slag, it is characterised in that including such as
Lower step：
（1）The liquid blast furnace of 1500-1700 DEG C of temperature is poured onto nodulizer arrival end by slag ladle, after heat exchange granulation, from going out
Mouth end enters revolution reaction cooling device porch, is mixed with biomass, and by biomass pyrolytic, subsequent blast furnace slag and biomass
Pyrolysis coke transports to the revolution reaction cooling device port of export, is put through cooling down water cooling heel row；
（2）Step（1）In cooling water added from the revolution reaction cooling device port of export, spray to blast furnace slag surface is by thermal transition
For vapor；Vapor then with blast furnace slag reverse flow and exchanging heat, transports to revolution reaction cooling device arrival end and biomass
Pyrolysis gas mixing constitutes low-temperature mixed gas；Low-temperature mixed gas is then transported to nodulizer and exchanged heat with liquid blast furnace, is converted into
800-1400 DEG C of high-temperature gas mixture；
（3）By step（2）In high-temperature gas mixture transport to catalytic reforming furnace, the chromium slag in stove after load calcining, high-temperature gas mixture
Chromium slag inside heating carries out catalytic reforming in the range of 800-1200 DEG C, generates high temperature energy gas；
（4）Step（3）The high temperature energy gas of middle generation is subsequently input in internal heat type rotary kiln end, with kiln tail continuous conveying mistake
The chromium slag come carries out heat exchange processing, while hexavalent chrome reduction in chromium slag is trivalent chromium by high temperature energy gas；High temperature energy gas
Temperature is reduced to after less than 250 DEG C, from rotary kiln discharge, into condensing unit, between cooling water reverse flow and occurring
Connect and collected after heat exchange, condensation dehydration；
（5）Step（4）High temperature chromium slag after middle heat exchange is discharged from rotary kiln end, into cooling device, using cooling water by its
Discharge after less than 150 DEG C is cooled to, while controlling cooling device air pressure inside to be higher than outdoor air pressure using produced vapor
0-30kp。
2. the skill of a kind of utilization blast furnace slag waste heat isochronous resources metaplasia material according to claim 1 and innoxious chromium slag
Art, it is characterised in that the continuous input quality ratio of the cooling water and blast furnace slag that cool down blast furnace slag is 1：(1-8).
3. the skill of a kind of utilization blast furnace slag waste heat isochronous resources metaplasia material according to claim 1 and innoxious chromium slag
Art, it is characterised in that the continuous input quality ratio of biomass and blast furnace slag is 1：(1-8).
4. the skill of a kind of utilization blast furnace slag waste heat isochronous resources metaplasia material according to claim 1 and innoxious chromium slag
Art, it is characterised in that the mass ratio control of the high temperature energy gas continuously generated and the chromium slag continuously inputted exists（1-8）：4.
5. the skill of a kind of utilization blast furnace slag waste heat isochronous resources metaplasia material according to claim 1 and innoxious chromium slag
Art, it is characterised in that the cooling water of cooling blast furnace slag and the continuous input quality of biomass exist than control（0.2-5）：1.
6. the skill of a kind of utilization blast furnace slag waste heat isochronous resources metaplasia material according to claim 1 and innoxious chromium slag
Art, it is characterised in that the chromium slag loaded in catalytic reforming furnace is by dolomite or Al2O3Base nano catalyst is substituted.
7. the skill of a kind of utilization blast furnace slag waste heat isochronous resources metaplasia material according to claim 1 and innoxious chromium slag
Art, it is characterised in that wherein described biomass is substituted by plastics or sludge.
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| CN201610035340.7A CN105598132B (en) | 2016-01-19 | 2016-01-19 | Method for synchronously recycling biomass and harmlessly treating chromium slag by using waste heat of blast furnace slag |
| PCT/CN2017/071515 WO2017125012A1 (en) | 2016-01-19 | 2017-01-18 | Method and system for synchronously recycling biomass and detoxifying chromium slag by using waste heat of blast furnace slag |
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| CN201610035340.7A CN105598132B (en) | 2016-01-19 | 2016-01-19 | Method for synchronously recycling biomass and harmlessly treating chromium slag by using waste heat of blast furnace slag |
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| 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 |
| CN107760383A (en) * | 2017-11-13 | 2018-03-06 | 中国矿业大学(北京) | Blast furnace slag waste heat catalytic pyrolysis biomass gas technology |
| CN113005289B (en) * | 2019-12-19 | 2022-05-27 | 有研资源环境技术研究院(北京)有限公司 | Method for improving zinc oxygen pressure leaching rate by using calcine waste heat and oxygen pressure leaching kettle exhaust |
| CN113683342B (en) * | 2021-07-16 | 2023-01-24 | 清远金谷智联环保产业研究院有限公司 | Method for preparing high-strength artificial board by using nickel smelting furnace slag and biomass waste |
| CN114590607B (en) * | 2022-03-09 | 2024-03-19 | 上海电气集团股份有限公司 | Slag discharging system for high-temperature ash and using method thereof |
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| US5204073A (en) * | 1991-04-29 | 1993-04-20 | Guangzhou Zhufeng Institute | Toxicity elimination and comprehensive utilization of chrome residues |
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| CN103978006B (en) * | 2013-10-28 | 2016-08-17 | 青岛理工大学 | High-efficiency low-consumption low-pollution chromium slag pyrolysis treatment method |
| CN105087844B (en) * | 2015-08-26 | 2017-05-17 | 中冶南方工程技术有限公司 | Blast furnace slag waste heat recovery and direct reduction joint production system and method |
| CN105647584B (en) * | 2016-01-19 | 2019-07-30 | 青岛理工大学 | Technology for recycling biomass and harmlessly treating chromium slag by using waste heat of blast furnace slag |
| CN105542859B (en) * | 2016-01-19 | 2018-09-07 | 青岛理工大学 | Technology for recycling biomass and producing high-quality fuel gas by using waste heat of blast furnace slag |
| CN105542813B (en) * | 2016-01-19 | 2019-08-20 | 青岛理工大学 | Biomass recycling and chromium slag harmless synchronization method |
| 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 |
| 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 |
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