CN201493302U - Cyclone furnace fly ash remelting method chromium residue directly into furnace detoxification system - Google Patents

Cyclone furnace fly ash remelting method chromium residue directly into furnace detoxification system Download PDF

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CN201493302U
CN201493302U CN2009202182687U CN200920218268U CN201493302U CN 201493302 U CN201493302 U CN 201493302U CN 2009202182687 U CN2009202182687 U CN 2009202182687U CN 200920218268 U CN200920218268 U CN 200920218268U CN 201493302 U CN201493302 U CN 201493302U
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chromium
chromium slag
fine powder
fly ash
cyclone furnace
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CN2009202182687U
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殷大众
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling

Abstract

The utility model provides a cyclone furnace fly ash remelting method chromium residue directly into furnace detoxification system which comprises a fuel mixed system, a fuel conveying system, a boiler milling system, a combustion system auxiliary device, a cyclone furnace, a dust remover, a draught fan, a chimney, as well as a water-quench tank and a sediment pond that are connected with the cyclone furnace, and the system also comprises a chromium residue pretreating conveying system and a chromium-contained fly ash configuration system. The chromium residue pretreating conveying system comprises a chromium residue drying machine, a chromium residue sieving machine and a chromium residue fine powder conveying system. The chromium-contained fly ash configuration system comprises a chromium residue fine powder storage bin and a chromium residue metering feeder. The chromium residue metering feeder is connected with a scraper, and finally connected with a cyclone cylinder combustion chamber through a chromium-contained fly ash into furnace remelting system. The chromium residue of the utility model is not added to boiler fire coal again, the problems of large contacted scope of the chromium residue, multiple process systems of secondary pollution, more leakage points of chromium-contained dust, limited addition proportion of into furnace chromium residue, and the like of the prior art, and the potential for the cyclone furnace to detoxicate and treat the chromium residue is fully exerted.

Description

Cyclone furnace fly ash remelting method chromium slag is directly into the stove detoxification system
Technical field
The utility model relates to a kind of chromium residue detoxifying treatment system, particularly a kind of system that directly carries out the chromium slag reduction detoxification processing by cyclone furnace fly ash remelting method.The utility model belongs to Solid-state Chemistry dangerous material controlling waste residue technical field.
Background technology
The chromium slag be in metallurgy industry crome metal production process and chromic salts process of producing product such as chemical industry potassium chromate, sodium chromate in the solid slag that discharges, contain the hexavalent chromium of severe toxicity, be one of 47 kinds of Hazardous Chemical Substances determining of national environmental protection portion.The chromium slag must be handled hexavalent chromium with severe toxicity through detoxifcation and be reduced into nontoxic trivalent chromic ion and solidify and just allow after the sealing safety to store up or as the regenerated resources safe utilization.
The basic characteristics of the domestic traditional attached burning method of cyclone furnace (hereinafter to be referred as boiler) detoxification chromium slag technology are to add a certain proportion of chromium slag that is mixed among the fire coal of thermal power plant cyclone furnace, fuel by the power plant system that is mixed, the coal conveyer belt system, pulverized coal preparation system grinds the chromium slag and the mixture of raw coal to become to contain chromic coal dust (hereinafter to be referred as containing the chromium coal dust) and be transported to Pulverized Coal Bin storage, and then through machine supplying powder, wind power transportation pipe and burner spray into and participate in burning in the boiler, by means of the inner strong high temperature reduction atmosphere of boiler whirlwind tube combustion chamber the 2nd section, become trivalent chromic ion to fuse into simultaneously among the high-temperature liquid state slag hexavalent chromium reduction and detoxication, be converted into solid-state vitreum Water Quenching Slag after the shrend, finish curing sealing, realize chromic slag harmlessness and recycling chromium ion.
Domestic since 1987 to 1989 the industrial test of the attached burning method of cyclone furnace chromium residue detoxifying, and on the cyclone furnace of Inner Mongolia Autonomous Region enterprise, be applied to today always." chemical industry environmental protection " magazine nineteen ninety the 10th volume article " cyclone furnace is handled the operation of chromium slag and summed up " disclose this factory in the cyclone furnace fire coal, adds 20% the poisonous chromium slag of being mixed, by equipment such as ball mill and thickness powder separator grind become to contain the chromium coal dust, finally enter boiler whirlwind tube combustion chamber, utilize the production process of cyclone furnace combusting coal fines generating to attach the technical method of detoxification chromium slag.
" the stove internal procedure of the attached burning chromium of cyclone furnace slag " (the 15th the 2nd phase of volume of " power engineering " nineteen ninety-five) discloses a kind of 65t/h sub-high pressure vertical cyclone furnace subsidiary process system design frame chart (this stove design back is not built because of reasons such as funds) that burns the chromium slag and detoxify of mixing in fire coal, also be poisonous chromium slag to be added be compounded among the fire coal of boiler, enter the run coal bin of boiler through belt conveyor system, the ball mill of pulverized coal preparation system, grind and become to contain the chromium coal dust and enter Pulverized Coal Bin, the boiler internal combustion process is participated in the whirlwind tube combustion chamber that enters boiler through Impeller powder feeder and wind power transportation pipe again, and the subsidiary detoxifcation of finishing the chromium slag is handled.
Application number is that 200610081310.6 Chinese patent application has proposed a kind of cyclone furnace fly ash remelting chromium residue detoxifying system and method (referring to Fig. 1), remain earlier the chromium slag to be added and be compounded among the raw coal, pass through ball mill, mill separator, Pulverized Coal Bin, equipment and systems such as Impeller powder feeder, to contain the chromium coal dust and send into cyclone furnace extended furnace (whirlwind tube combustion chamber), in the process of boiler combustion, finish the reduction and detoxication and the curing of a part of chromium slag, utilize the fly ash remelting system mentioned in this patent to contain the whirlwind tube combustion chamber second-time burning refuse that chromic poisonous flying dust is all sent (abbreviation contains the chromium flying dust) boiler back to then, realize containing the reduction and detoxication of chromium flying dust and the curing sealing of chromium ion with what boiler dust remover captured.
What more than enumerate all is that cyclone furnace is mixed the technical method that burning chromium slag carries out chromium residue detoxifying in fire coal, and it has following shortcoming:
1, poisonous chromium slag interpolation is compounded among the fire coal of boiler, will inevitably be to the fire coal system equipment that is mixed, the coal conveyer belt system, the boiler run coal bin, the ball mill of boiler milling system, thickness powder separator, Pulverized Coal Bin, Impeller powder feeder, coal, pulverulent fuel mixer, large quantities of equipment such as wind power transportation pipe and burner bring poisonous hexavalent chromium polluted, overhaul and safeguard and increased difficulty for the maintainer enters these equipment, the airborne dust of coal conveyer belt system and the said equipment leakage of including the chromium coal dust simultaneously also will inevitably cause large-area secondary pollution to the production environment in a plurality of workshops of power plant and the region of periphery, directly threaten the healthy of post workman, the Manufacturing Worker of power plant is caused huge psychological pressure and stress.
2, the ground flushing water of production system and the rainwater in summer touch the chromic coal dust that contains that ground descends slowly and lightly between boiler shop and defeated coal car, the hexavalent chromium of severe toxicity can be dissolved in ground flushing water and the rain drainage system, or enter rivers and lakes or infiltrate soil, cause the surface water of surrounding area and phreatic hexavalent chromium polluted, directly threaten this area's resident living water, industry, agricultural, animal husbandry water, may cause large-area environmental pollution incident.
3, the chromium slag adds ratio among the fire coal to and is subjected to restriction into the stove coal burning caloricity, usually the ratio of adding is 10%~23%, if adding proportion surpasses 25%, the caloric value of going into the stove fire coal reduces too many, coal dust catching fire and normal combustion in burner and whirlwind tube combustion chamber first section be will influence, boiler steam supply and generating directly influenced.
4, since in the fire coal chromium slag adding proportion be subjected to above-mentioned the 3rd restriction, cause in the unit interval, the detoxify ability of processing chromium slag of cyclone furnace to be restricted.Store up under the certain condition of chromium slag quantity in enterprise, the time cycle that the chromium slag is handled in existing cyclone furnace detoxifcation will be spun out, be unfavorable for country to the undertaking treatment within a prescribed limit of time of chromium slag and the recycling of chromium slag, the chromium slag of storing up for a long time can constitute huge pollution hidden trouble to the ecological environment of peripheral region.
Summary of the invention
The purpose of this utility model provides a kind of cyclone furnace fly ash remelting method chromium slag directly into the stove detoxification system, makes poisonous chromium slag fine powder only carry out reduction and detoxication by the 2nd section (being the high-temperature slag section of cyclone furnace) that the boiler fly ash remelting system enters whirlwind tube combustion chamber.The chromium slag no longer adds in the boiler fired coal, and the scope that has solved chromium slag contact in the prior art effectively is big, cause the process system of Cr VI secondary pollution many, contaminated equipment is many, the potential ability of the processing chromium slag that contains that chromium powder dirt leakage point adding proportions many, that go into stove chromium slag are restricted, cyclone furnace detoxifies is brought into play problem such as do not come out.
The technical scheme that the utility model addresses the above problem is: design a kind of cyclone furnace fly ash remelting method chromium slag directly into the stove detoxification system, it comprises successively: the fuel system that is mixed, fuel delivery system, boiler milling system, the combustion system auxiliary equipment, cyclone furnace, deduster, air-introduced machine and chimney, and watch-quench tank that is connected with cyclone furnace and detritus tank, deduster connects by the scraper plate machine, the metering ash bucket, the metering batcher, contain chromium flying dust delivery pump, air compressor plant, go into the chromium flying dust that contains of stove conveyance conduit and flying dust injector composition and go into stove remelting system, it is characterized in that it also comprises: chromium slag preliminary treatment induction system and contain chromium flying dust configuration-system; Described pre-chromium slag processing/transfer system comprises successively: chromium slag dryer, chromium ballast screen extension set and chromium slag fine powder induction system; The described chromium flying dust configuration-system that contains comprises successively: chromium slag fine powder warehouse and chromium slag metering batcher; Described chromium slag metering batcher connects described scraper plate machine, goes into stove remelting system and connects whirlwind tube combustion chamber at last through the described chromium flying dust that contains.
In the such scheme, described chromium slag fine powder induction system comprises successively: fine powder elevator, high hopper, metering batcher, chromium slag fine powder delivery pump and chromium slag fine powder conveyance conduit, and this chromium slag fine powder conveyance conduit output connects described chromium slag fine powder warehouse; Perhaps described chromium slag fine powder induction system comprises successively: bulk cement tanker and the standby conveyance conduit of chromium slag fine powder, wherein bulk cement tanker is accepted the chromium slag fine powder of chromium ballast screen extension set output, and the standby conveyance conduit output of chromium slag fine powder connects described chromium slag fine powder warehouse.
In the such scheme, it also comprises chromium slag fine powder dust-precipitator, and its inlet connects chromium slag fine powder warehouse, and its tail gas outlet connects described deduster inlet, and the capture ash bucket of chromium slag fine powder dust-precipitator connects described scraper plate machine.
In the such scheme, set up relay air blower and fume afterheat utilizes pipeline at the thermal source of chromium slag dryer inlet, sack cleaner is set up in the outlet of chromium slag dryer, and sack cleaner is connected with high hopper; Described fume afterheat utilizes pipeline to connect the air-introduced machine rear end, and relay air blower connects the thermal source inlet of described chromium slag dryer.
In the such scheme, described air compressor plant connects on the one hand and contains chromium flying dust delivery pump, and compressed on the other hand air duct is connected with chromium slag fine powder delivery pump.
In the such scheme, it also comprises preparation of lime stone class desulfurizing agent and induction system; It is connected with described chromium slag fine powder conveyance conduit.
In the such scheme, native system adopts PLC robot control system(RCS), DCS control system or bus control system to control whole technical process.
The utility model has the following advantages compared with prior art:
1, poisonous chromium slag directly enters the fly ash remelting system, and the chromium flying dust that contains that captures with deduster is conveyed into stove after being mixed, and carries out reduction and detoxication.Raw coal storage system, limestone system, the fuel that the chromium slag no longer enters power plant the be mixed outer combustion system auxiliary equipment of system, fuel delivery system, boiler milling system, stove and the burner of boiler, avoided secondary pollution, also avoided said system and equipment leakage to contain the secondary pollution of chromium that chromium powder dirt causes plant area and Workshop Production environment the above-mentioned numerous process system equipment in thermal power plant.
2, chromium slag fine powder is not to add in the fire coal but be compounded among the flying dust that boiler dust remover captures, contain the 1st section (section catches fire) that the chromium flying dust does not enter burner and boiler whirlwind tube combustion chamber, but directly enter the 2nd section (high-temperature slag section) of boiler whirlwind tube combustion chamber, the adding proportion that strengthens the chromium slag fine powder in the flying dust can not influence catch fire in whirlwind tube combustion chamber catching fire of section and burning of coal dust, can not influence the generating of boiler steam supply, can guarantee boiler safety stable operation.
3, because cyclone furnace no longer is subjected to the restriction of fire coal and chromium slag adding proportion, can give full play to the ability of the potential melt back flying dust in enormous quantities of cyclone furnace itself and the ability of detoxification chromium slag, cyclone furnace fly ash remelting system can carry contain chromium flying dust and the chromium slag pretreatment system of deduster to carry the chromium slag fine powder of coming to detoxify directly into the stove remelting apace in large quantity, in the process of slag water quenching, realize the curing sealing of chromium ion simultaneously, realize the safe and the recycling of chromium slag.
4, native system can be accelerated the improvement speed of domestic cyclone furnace detoxification chromium slag, shortens the treatment of chromate slag cycle significantly.
5, can partly or entirely substitute the external desulfurzation device (deciding) of cyclone furnace with the native system that the preparation of lime stone class desulfurizing agent is connected with induction system, realize the boiler flue gas sulphur dioxide qualified discharge on the coal-fired sulfur content of cyclone furnace.
Description of drawings
Fig. 1 is the schematic diagram of existing cyclone furnace chromium residue detoxifying process system;
Fig. 2 is the schematic diagram of chromium residue detoxifying process of the present utility model system.
The specific embodiment
Below in conjunction with drawings and Examples, further specify the utility model.
With reference to Fig. 2, cyclone furnace fly ash remelting method chromium slag of the present utility model comprises successively directly into the stove detoxification system: fuel be mixed system 1, fuel delivery system 2, boiler milling system 3, combustion system auxiliary equipment 4, cyclone furnace 5, deduster 8, air-introduced machine 9 and chimney 10 and the watch-quench tank 16 and the detritus tank 17 that are connected with whirlwind tube combustion chamber the 2nd section 52 (being the high-temperature slag section); Deduster 8 connecting by scraper plate machine 11, metering ash bucket 12, metering batcher 13, contain chromium flying dust delivery pump 14, air compressor plant 18, go into that stove conveyance conduit 15 and flying dust injector 20 form contain chromium fly ash remelting system, this is the prior art scheme.Different is that it has also increased chromium slag preliminary treatment induction system 6 and has contained chromium flying dust configuration-system 7; Described chromium slag preliminary treatment induction system 6 comprises successively: chromium slag dryer 61, chromium ballast screen extension set 62, chromium slag fine powder induction system 63 and thick chromium ground-slag grinding machine 64; The described chromium flying dust configuration-system 7 that contains comprises successively: chromium slag fine powder warehouse 71 and chromium slag metering batcher 72; Chromium slag metering batcher 72 connects the scraper plate machine 11 that contains in the chromium fly ash remelting system, finally is connected to whirlwind tube combustion chamber the 2nd section (high-temperature slag section) of cyclone furnace 5 through flying dust injector 20; Thick chromium ground-slag grinding machine 64 is accepted the thick chromium slag that 62 outlets of chromium ballast screen extension set sieve out, sends chromium ballast screen extension set 62 inlets after the grinding back to.
Described chromium slag fine powder induction system 63 comprises successively: fine powder elevator 631, high hopper 632, metering batcher 633, chromium slag fine powder delivery pump 634 and chromium slag fine powder conveyance conduit 635, wherein fine powder elevator 631 is accepted the chromium slag fine powder of chromium ballast screen extension set 62 outputs, and the output of chromium slag fine powder conveyance conduit 635 connects chromium slag fine powder warehouse 71.Described chromium slag fine powder induction system 63 also comprises: the standby conveyance conduit 637 of bulk cement tanker 636 and chromium slag fine powder, wherein bulk cement tanker 636 is accepted the chromium slag fine powder of chromium ballast screen extension set 62 outputs, and standby conveyance conduit 637 outputs of chromium slag fine powder connect chromium slag fine powder warehouse 71.
Chromium slag fine powder warehouse 71 also connects chromium slag fine powder dust-precipitator 73, and the tail gas outlet 74 of chromium slag fine powder dust-precipitator 73 connects the inlet of boiler tail deduster 8, and the capture ash bucket 75 of chromium slag fine powder dust-precipitator connects scraper plate machine 11.
The fume afterheat that the thermal source of chromium slag dryer 61 can utilize boiler to discharge.Set up relay air blower 621 and fume afterheat utilizes pipeline 622 at the thermal source arrival end of chromium slag dryer 61, the port of export at chromium slag dryer 61 is set up sack cleaner 623, and waste heat flue gas self-induced-air machine 9 rear ends are derived through fume afterheat and utilized pipeline 622, are connected to the thermal source inlet of chromium slag dryer 61 through relay air blower 621 again.Sack cleaner 623 is realized qualified discharge.
Air compressor plant 18 connects on the one hand and contains chromium flying dust delivery pump 14, and compressed on the other hand air duct 19 is connected with chromium slag fine powder delivery pump 634.
Chromium slag fine powder conveyance conduit 635 is connected with induction system 21 with the preparation of lime stone class desulfurizing agent, the utility model can partly or entirely substitute the external desulfurzation device (sulfur content on boiler fired coal is decided) of cyclone furnace when the desulfurization operating mode needs, the function of performance desulfuration in furnace realizes the boiler flue gas sulphur dioxide qualified discharge.
Whole process system 23 of the present utility model adopts PLC robot control system(RCS) or DCS control system or bus control system 22 to control whole technical process.
In conjunction with Fig. 2, chromium slag of the present utility model is as follows directly into the operation principle of stove detoxification system:
1, deposits oven dry, screening and the induction system that the chromium slag is built in the place at the chromium slag muck
Deposit the place at the chromium slag muck and dry screening chromium slag nearby, the thick chromium slag that the particle diameter that screening is come out is big or be used for metallurgy industry and do raw materials for metallurgy reduction and detoxication in sintering furnace and blast furnace perhaps returns thick chromium slag to screening machine 62 rescreenings again after flour mill 64 is pulverized.The chromium slag fine powder that screening is come out is delivered to high hopper 632 storages through fine powder elevator 631, quantitatively provide through metering batcher 633 again, enter 634 pressurizations of chromium slag fine powder delivery pump and extrude the mode of making the conveying of carrier employing strength afterwards of compressed air, the airtight chromium slag fine powder conveyance conduit 635 of process is transported to the chromium slag fine powder warehouse 71 on boiler tail deduster next door, and this mode of movement is applicable to in-plant chromium slag fine powder conveying; If fed distance surpasses a km, then can adopt airtight bulk cement tanker 636 substitute chromium slag fine powder induction systems to transport chromium slag fine powder and arrive near the boiler tail deduster, it is standby with the compression pump of bulk cement carrier self chromium slag fine powder to be transported to chromium slag fine powder warehouse 71 through standby conveyance conduit 637.The dust-laden tail gas of chromium slag dryer 61 and the dust-laden tail gas of high hopper 632 are handled through bagroom 623, purify the back qualified discharge to atmosphere, the chromium slag micro mist that bagroom 623 reclaims relies on deadweight to fall into chromium slag high hopper 632 and enters chromium slag fine powder induction system in the lump.The powder feeding tail gas of chromium slag fine powder warehouse 71 enters chromium slag fine powder dust-precipitator 73 and handles, the inlet that the outlet blast pipe 74 of this dust-precipitator is sent dust-laden tail gas into electric cleaner 8 is done final purification and is handled, and chromium slag fine powder dust-precipitator bottom captures the thin dirt of small additions of chromium slag discharging regularly that ash bucket 75 collects and enters the scraper plate machine 11 fed to boiler remelting detoxifcation that is mixed.
2, the chromium flying dust that contains of chromium slag fine powder and boiler dust remover capture is mixed mutually
The chromium slag metering batcher 72 that contains chromium flying dust configuration-system quantitatively provides chromium slag fine powder and enters scraper plate machine 11, finish elementary be mixed homogenizing by predetermined ratio with the chromium flying dust that contains that electric cleaner 8 each ash buckets are quantitatively emitted in scraper plate machine 11 runnings, synthetic meeting contains the chromium flying dust into the stove standard.
3, cyclone furnace fly ash remelting system directly carries and contains the chromium flying dust and go into the stove detoxifcation
Cyclone furnace fly ash remelting system is that totally enclosed strength is sent ash system.The chromium flying dust that contains from scraper plate machine 11 enters metering ash bucket 12, provide to enter through metering batcher 13 again and contain chromium flying dust delivery pump 14, in containing chromium flying dust delivery pump compressed air with contain the chromium flying dust and evenly mix, the 2nd section (high-temperature slag section) 52 that fly ash remelting conveyance conduit 15 that process is airtight and flying dust injector 20 spray into whirlwind tube combustion chamber, chromium slag fine powder and the poisonous hexavalent chromium ion that contains in the chromium flying dust are finished the reduction and detoxication process in the strong high temperature reduction atmosphere in the 2nd section inner space, whirlwind tube combustion chamber, the hexavalent chromium of severe toxicity is reduced to nontoxic trivalent chromic ion, be converted into the high-temperature liquid state slag of molten condition together with remaining mineral matter ash after the fuel combustion, be pooled to the molten slag bath of the 2nd section bottom, whirlwind tube combustion chamber.
4, high-temperature slag shrend process realizes the curing sealing to chromium ion
The high-temperature liquid state slag flows out in the 2nd section 52 bottom dross ponds from whirlwind tube combustion chamber, enters to be converted into solid-state vitreum Water Quenching Slag (contain chromium and increase the calcium Water Quenching Slag) after watch-quench tank 16 cools off, and the shrend process has realized the curing sealing of vitreum to the chromium ion after detoxifying.The vitreum Water Quenching Slag is taken detritus tank 17 to by flushing cinder water and is carried out precipitate and separate, and flushing cinder water returns watch-quench tank and recycles, the chromium slag (contain chromium and increase the calcium Water Quenching Slag) after the detoxifcation) can be as cement raw material and construction material recycling in addition safely.

Claims (7)

1. a cyclone furnace fly ash remelting method chromium slag is directly into the stove detoxification system, it comprises successively: the fuel system that is mixed, fuel delivery system, boiler milling system, the combustion system auxiliary equipment, cyclone furnace, deduster, air-introduced machine and chimney, and watch-quench tank that is connected with cyclone furnace and detritus tank, deduster connects by the scraper plate machine, the metering ash bucket, the metering batcher, contain chromium flying dust delivery pump, air compressor plant, go into the chromium flying dust that contains of stove conveyance conduit and flying dust injector composition and go into stove remelting system, it is characterized in that it also comprises: chromium slag preliminary treatment induction system and contain chromium flying dust configuration-system; Described chromium slag preliminary treatment induction system comprises successively: chromium slag dryer, chromium ballast screen extension set and chromium slag fine powder induction system; The described chromium flying dust configuration-system that contains comprises successively: chromium slag fine powder warehouse and chromium slag metering batcher; Described chromium slag metering batcher connects described scraper plate machine, goes into stove remelting system and connects whirlwind tube combustion chamber at last through the described chromium flying dust that contains.
2. cyclone furnace fly ash remelting method chromium slag according to claim 1 is directly into the stove detoxification system, it is characterized in that, described chromium slag fine powder induction system comprises successively: fine powder elevator, high hopper, metering batcher, chromium slag fine powder delivery pump and chromium slag fine powder conveyance conduit, and this chromium slag fine powder conveyance conduit output connects described chromium slag fine powder warehouse; Perhaps described chromium slag fine powder induction system comprises successively: bulk cement tanker and the standby conveyance conduit of chromium slag fine powder, wherein bulk cement tanker is accepted the chromium slag fine powder of chromium ballast screen extension set output, and the standby conveyance conduit output of chromium slag fine powder connects described chromium slag fine powder warehouse.
3. cyclone furnace fly ash remelting method chromium slag according to claim 1 is directly into the stove detoxification system, it is characterized in that it also comprises chromium slag fine powder dust-precipitator, its inlet connects chromium slag fine powder warehouse, its tail gas outlet connects described deduster inlet, and it captures ash bucket and connects described scraper plate machine.
4. cyclone furnace fly ash remelting method chromium slag according to claim 1 is directly into the stove detoxification system, it is characterized in that, set up relay air blower and fume afterheat utilizes pipeline at the thermal source of chromium slag dryer inlet, sack cleaner is set up in the outlet of chromium slag dryer, and sack cleaner is connected with high hopper; Described fume afterheat utilizes pipeline to connect the air-introduced machine rear end, and relay air blower connects the thermal source inlet of described chromium slag dryer.
5. cyclone furnace fly ash remelting method chromium slag according to claim 2 is characterized in that directly into the stove detoxification system described air compressor plant connects on the one hand and contains chromium flying dust delivery pump, and compressed on the other hand air duct is connected with chromium slag fine powder delivery pump.
6. cyclone furnace fly ash remelting method chromium slag according to claim 2 is characterized in that directly into the stove detoxification system it also comprises preparation of lime stone class desulfurizing agent and induction system, and it is connected with described chromium slag fine powder conveyance conduit.
7. it is characterized in that directly into the stove detoxification system according to arbitrary described cyclone furnace fly ash remelting method chromium slag among the claim 1-6 that native system adopts PLC robot control system(RCS), DCS control system or bus control system to control whole technical process.
CN2009202182687U 2009-10-16 2009-10-16 Cyclone furnace fly ash remelting method chromium residue directly into furnace detoxification system Expired - Fee Related CN201493302U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105921483A (en) * 2016-04-29 2016-09-07 义马环保电力有限公司 Environment-friendly treatment system and method for fly ash of household garbage power generating station
CN110586612A (en) * 2019-08-26 2019-12-20 北京高能时代环境技术股份有限公司 Harmless treatment method for co-processing incineration fly ash by using chromium slag
CN110586620A (en) * 2019-09-18 2019-12-20 北京金隅琉水环保科技有限公司 Metering and weighing device, fly ash treatment system and fly ash treatment method
CN110904329A (en) * 2019-12-15 2020-03-24 兰州理工大学 Pretreatment method for detoxification and comprehensive utilization of chromium slag

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105921483A (en) * 2016-04-29 2016-09-07 义马环保电力有限公司 Environment-friendly treatment system and method for fly ash of household garbage power generating station
CN105921483B (en) * 2016-04-29 2018-04-03 义马环保电力有限公司 The environment-friendly disposal system and method for house refuse power station flying dust
CN110586612A (en) * 2019-08-26 2019-12-20 北京高能时代环境技术股份有限公司 Harmless treatment method for co-processing incineration fly ash by using chromium slag
CN110586620A (en) * 2019-09-18 2019-12-20 北京金隅琉水环保科技有限公司 Metering and weighing device, fly ash treatment system and fly ash treatment method
CN110904329A (en) * 2019-12-15 2020-03-24 兰州理工大学 Pretreatment method for detoxification and comprehensive utilization of chromium slag

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