CN103277803A - Salty waste water incineration disposal system and disposal method thereof - Google Patents
Salty waste water incineration disposal system and disposal method thereof Download PDFInfo
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- CN103277803A CN103277803A CN2013101733630A CN201310173363A CN103277803A CN 103277803 A CN103277803 A CN 103277803A CN 2013101733630 A CN2013101733630 A CN 2013101733630A CN 201310173363 A CN201310173363 A CN 201310173363A CN 103277803 A CN103277803 A CN 103277803A
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Abstract
The invention discloses a salty waste water incineration disposal system and a disposal method of the salty waste water incineration disposal system and relates to the field of salty waste water incineration disposal. According to the technical scheme, an existing method that a large amount of water is used for cooling waste water rapidly is changed, heat exchange is conducted through a radiation radiator, therefore, the temperature of smoke is effectively lowered, high-temperature smoke is provided through a coal burning machine, and the problem that burning cost of natural gas is high is solved. Furthermore, circulating smoke pipelines are arranged in a plurality of places of the whole system, therefore, heat energy is recovered, and the temperature of the smoke is effectively controlled in a suitable range, for instance, the state of salt in the salty waste water is prevented from becoming a molten state, and the temperature of the salty waste water entering a multi-pipe dust remover and the temperature of the salty waste water entering a Tai Mian high-temperature dust remover are controlled within 600 DEG C to 650 DEG C. Dust removing efficiency is effectively improved.
Description
Technical field
The present invention relates to brine waste burning disposal field, but relate in particular to a kind of brine waste burning processing system and processing method thereof of high efficiente callback organic salt.
Background technology
At present in industrial production, can produce a large amount of high slat-containing wastewaters unavoidably, traditional technology generally adopts burning high slat-containing wastewater method to handle, the problem of its existence is: 1. brine waste must adopt quick cooling method to cool off after burning, traditional method all is to adopt a large amount of water mixing coolings, water behind the chilling also needs to drain into sewage treatment plant and carries out subsequent treatment, waste water resource and subsequent treatment process complexity greatly, cost of investment is higher; 2. in burning process, the too high meeting of incineration temperature causes the salt fusing, and the salt of molten can be penetrated in the refractory material of incinerator, causes refractory material in layer to peel off damage, and the life-span of refractory material is shortened greatly; 3. the heat energy after burning can not reclaim the energy consumption height; 4. fuse salt and other materials can produce insoluble matter at high temperature incineration, meeting occluding device and system; 5. the salt behind the chilling can become floating dust surrounding enviroment is brought severe contamination.Have much room for improvement.
Chinese patent application number is 201210362762.7, disclose a kind of salt-containing organic wastewater immersion and burned chilling treating apparatus and method, it comprises incinerator, the waste water supply system of supply salt-containing organic wastewater in the combustion chamber of incinerator, the fuel gas supply system of fuel supplying gas in the combustion chamber of incinerator, the combustion air supply system of input combustion air in the combustion chamber of incinerator, incinerator internal reaction products therefrom chilling is reduced the flue gas chilling system of temperature, the flue gas dust collecting system that salt contained in the flue gas behind the chilling is cleaned up.After the oxidation, its saliferous flue gas can reach the gas-liquid two-phase balance by chilling to salt-containing organic wastewater in incinerator, realizes separating recovery saliferous material.Flue gas behind the chilling reaches the fume environment protection discharge standard by smoke stack emission by after the venturi scrubber dedusting.This technical scheme also is to adopt burning method to handle the saline solution of high-load, but its incineration temperature control is at 1050 ~ 1150 ℃, the fusing point that has surpassed salt, in burning process, can form the salt of molten, can't overcome the salt penetration of molten in the refractory material of incinerator, cause refractory material in layer to peel off damage, make the problem that life-span of refractory material shortens greatly, and in quenching process, can produce salting liquid, can't effectively separate obtaining solid salt, realize gas-liquid separation, its dedusting is also produced and is used wet dedusting, still do not overcome in the prior art shortcoming of the big water gaging of waste, and the heat energy that produces of high-temperature flue gas do not have recyclingly, energy consumption is bigger.Have much room for improvement.
Summary of the invention
The present invention provides a kind of energy-conserving and environment-protective for solving the problems of the technologies described above, and can effectively handle and reclaim the solid salt in the brine waste, improves brine waste burning processing system and the processing method thereof for the treatment of effeciency greatly.
Key problem in technology of the present invention is to change the method for in the past using a large amount of water quick coolings, adopt radiator to carry out heat exchange, effectively reduce flue-gas temperature, and provide high-temperature flue gas by coal burning machine, overcome with the high problem of combustion of natural gas cost, moreover many places arrange the circulating flue gas pipeline in whole system, effectively flue gas are controlled in suitable temperature, for example: prevent that the salt in the brine waste from becoming molten when reclaiming heat energy; The temperature control that enters multi-tube dust cleaner and too cotton hot precipitator is at 600 ℃ ~ 650 ℃ etc.Effectively improve the efficient of dedusting.Its concrete technical scheme is: a kind of brine waste burning processing system, comprise incinerator, pump into the waste water supercharging equipment of high-pressure atomization waste water to incinerator, feed the gas supply equipment of high-temperature flue gas to incinerator, feed the auxiliary combustion equipment of combustion-supporting gas in the incinerator, the cooling device that the product quenching of incinerator internal reaction gained is handled and the cleaner that the chilling flue gas is carried out purified treatment, it is characterized in that described gas supply equipment is coal burning machine, the high-temperature flue gas that coal burning machine produces connects incinerator by pipeline; Described cooling device is radiator, and the radiator import is connected with incinerator bottom smoke discharging pipe, and outlet conduit connects cleaner; Described cleaner comprises at least one multi-tube dust cleaner, at least one too cotton hot precipitator, described multi-tube dust cleaner exhanst gas outlet is connected by pipeline in turn with too cotton hot precipitator gas approach, the dust outlet of described multi-tube dust cleaner bottom is communicated with the dust outlet conduit of too cotton hot precipitator bottom, and the dust outlet of described too cotton hot precipitator bottom is set up a pipeline in addition and connected flow delivery systems; Described too cotton hot precipitator exhanst gas outlet pipeline is communicated with preboiler, and preboiler connects air preheat machine, soft water heater and smoke exhaust fan successively by pipeline.
As a further improvement on the present invention, establish a circulating flue gas pipeline on the described radiator in addition and be communicated with coal burning machine.Effectively reduce the temperature of flue gas can be with the part of smoke heat energy recycling time by this kind setting.
As a further improvement on the present invention, establish a circulating flue gas pipeline in addition on the pipeline between described multi-tube dust cleaner exhanst gas outlet and the too cotton hot precipitator gas approach and be communicated with coal burning machine.Effectively reduce the temperature of flue gas can be with the part of smoke heat energy recycling time by this kind setting.
As a further improvement on the present invention, set up the secondary multi-tube dust cleaner on the described circulating flue gas pipeline, the dust outlet conduit of described secondary multi-tube dust cleaner bottom is communicated with the dust outlet of too cotton hot precipitator bottom.Can further carry out dedusting to flue gas by this kind setting, effectively divide the organic salt in the separable flue gas.
As a further improvement on the present invention, have additional the flue gas recirculation blower fan on the circulating flue gas pipeline of establishing in addition on the pipeline between described multi-tube dust cleaner exhanst gas outlet and the too cotton hot precipitator gas approach.By this kind raising flue gas transfer efficiency is set.
As a further improvement on the present invention, pipeline between the dust outlet of the outlet of the dust of described secondary multi-tube dust cleaner bottom and too cotton hot precipitator bottom and the dust of described multi-tube dust cleaner bottom export with pipeline between the dust of too cotton hot precipitator bottom exports and communicate, and have additional the air-flow conveying fan.Can effectively save duct length by this kind setting, and improve organic salt dust transfer efficiency.
As preferably, have additional the clean room on the pipeline between described coal burning machine and the incinerator.Reduce the unnecessary impurity in the high-temperature flue gas.
As a further improvement on the present invention, described auxiliary combustion equipment is neat gas burner, is arranged at the pipeline that coal burning machine is connected with incinerator that is used for the tangential setting of incinerator body of heater.By this kind setting, in right amount by natural gas, effectively control flue-gas temperature in the incinerator.
The present invention also provides the method for utilizing said system to handle for solving the problems of the technologies described above, and its concrete technical scheme is: a kind of brine waste incineration treatment method is characterized in that may further comprise the steps:
A. the atomizing brine waste of the high-temperature flue gas that at first coal burning machine is produced, the generation of waste water supercharging equipment pumps into the incinerator chamber, both haptoreactions, brine waste gasifies and mixes with high-temperature flue gas, it is 900 ℃ ~ 950 ℃ that described high-temperature flue gas enters temperature, makes mixed flue-gas temperature control at 700 ℃ ~ 780 ℃; Effectively prevent from becoming molten salt.
B. the neat gas burner by auxiliary combustion equipment injects natural gas and carries out drying and incinerating then, makes temperature control below 1000 ℃, the dry flue gas that contains dust salt that produces;
C. the flue gas that contains dust salt is discharged from incinerator bottom smoke discharging pipe, enters radiation recuperator and carries out heat exchange, simultaneously part of smoke is pumped into coal burning machine by the circulating flue gas pipe and recycles, and makes the flue gas that contains dust salt further be cooled to 600 ℃ ~ 650 ℃;
The flue gas that contains dust salt that d. will cool off enters multi-tube dust cleaner and carries out flue gas ash removal, with flue gas and saliferous dust separation, flue gas after the dedusting enters too cotton hot precipitator again and carries out final dusting, flue gas behind the final dusting enters preboiler and cools to 600 ℃, utilize the circulating flue gas pipe to be circulated back in the coal burning machine part of smoke, after treating flue gas cool-down to 425 ℃, remaining flue gas is entered air preheater, with the air heat to 300 in the air preheater ℃, continue again to enter atmosphere with behind the flue gas cool-down to 180 ℃ by smoke exhaust fan;
E. utilize the air-flow conveying fan to pump into flow delivery systems behind the saliferous dust collection with multi-tube dust cleaner and too cotton hot precipitator bottom dust outlet discharge, carry through air-flow to be cooled to pack outward transport about 70 ℃.
As a further improvement on the present invention, circulation entered coal burning machine after a described flue gas part after the multi-tube dust cleaner dedusting entered the dedusting of secondary multi-tube dust cleaner by the circulating flue gas pipeline, and the saliferous dust that dust outlet in secondary multi-tube dust cleaner bottom is discharged enters flow delivery systems.
Beneficial effect of the present invention: simplified technological process greatly, simple to operateization is reliable, and the continuity of production improves greatly; Reduce equipment investment, shortened the completion time of project; Salt can not become fuse salt in burning process, solved the etch of fuse salt to refractory material, and improve the service life of refractory material greatly; Can reclaim heat energy (middle pressure steam); Consume water does not have the generation of waste water simultaneously yet; Waste residue can fully utilize or as common offal treatment; Flue gas does not contain dust, fully can qualified discharge; A large amount of solid salt that reclaim.
Description of drawings
Fig. 1 is the structural representation of system of the present invention.
Fig. 2 is process structure schematic diagram of the present invention.
The specific embodiment
Embodiment 1: a kind of brine waste burning processing system, comprise incinerator 003, pump into the waste water supercharging equipment 017 of high-pressure atomization waste water to incinerator, feed the gas supply equipment of high-temperature flue gas to incinerator, feed the auxiliary combustion equipment of combustion-supporting gas in the incinerator, the cooling device that the product quenching of incinerator internal reaction gained is handled and the cleaner that the chilling flue gas is carried out purified treatment, described gas supply equipment is coal burning machine 001, and the high-temperature flue gas that coal burning machine 001 produces connects incinerator 003 by pipeline 002; Described cooling device is radiator 004, and radiator 004 import is connected with incinerator 003 bottom smoke discharging pipe 002, and outlet conduit 002 connects cleaner; Described cleaner comprises at least one multi-tube dust cleaner 005, at least one too cotton hot precipitator 006, described multi-tube dust cleaner 005 exhanst gas outlet is connected by pipeline 002 in turn with too cotton hot precipitator 006 gas approach, the dust outlet of described multi-tube dust cleaner 005 bottom is communicated with the dust outlet conduit 021 of too cotton hot precipitator 006 bottom, and the dust outlet of described too cotton hot precipitator 006 bottom is set up a pipeline 021 in addition and connected flow delivery systems 007; Described too cotton hot precipitator 006 exhanst gas outlet pipeline 002 is communicated with preboiler 008, and preboiler 008 connects air preheat machine 009 and smoke exhaust fan 010 successively by pipeline 002.
Embodiment 2: with reference to embodiment 1, establish a circulating flue gas pipeline 012 on the described radiator 004 in addition and be communicated with coal burning machine 001.
Embodiment 3: with reference to implementing 1 or 2, establish a circulating flue gas pipeline 012 in addition on the pipeline between described multi-tube dust cleaner 005 exhanst gas outlet and too cotton hot precipitator 006 gas approach and be communicated with coal burning machine 001.
Embodiment 4: with reference to embodiment 1 or 2 or 3, set up secondary multi-tube dust cleaner 051 on the described circulating flue gas pipeline 012, the dust outlet conduit of described secondary multi-tube dust cleaner 051 bottom is communicated with the dust outlet of too cotton hot precipitator 006 bottom.
Embodiment 5: with reference to embodiment 4, have additional flue gas recirculation blower fan 013 on the circulating flue gas pipeline of establishing in addition on the pipeline between described multi-tube dust cleaner 005 exhanst gas outlet and too cotton hot precipitator 006 gas approach 012.
Embodiment 6: with reference to embodiment 1, pipeline 021 between the dust outlet of the outlet of the dust of described secondary multi-tube dust cleaner 051 bottom and too cotton hot precipitator 006 bottom and the dust of described multi-tube dust cleaner 005 bottom export with pipeline 021 between the dust of too cotton hot precipitator 006 bottom exports and communicate, and have additional air-flow conveying fan 014.
Embodiment 7: with reference to embodiment 1, have additional clean room 015 on the pipeline 002 between described coal burning machine 001 and the incinerator 003.
Embodiment 8: with reference to embodiment 1, described auxiliary combustion equipment is neat gas burner 016, is arranged at the pipeline 002 that coal burning machine 001 is connected with incinerator 003 that is used for the tangential setting of incinerator 003 body of heater.
A kind of brine waste incineration treatment method may further comprise the steps:
A. the atomizing brine waste of the high-temperature flue gas that at first coal burning machine 001 is produced, 017 generation of waste water supercharging equipment pumps into incinerator 003 chamber, both haptoreactions, brine waste gasifies and mixes with high-temperature flue gas, it is 900 ℃ ~ 950 ℃ that described high-temperature flue gas enters temperature, makes mixed flue-gas temperature control at 700 ℃ ~ 780 ℃;
B. the neat gas burner by auxiliary combustion equipment 016 injects natural gas and carries out drying and incinerating then, makes temperature control below 1000 ℃, the dry flue gas that contains dust salt that produces;
C. the flue gas that contains dust salt is discharged from incinerator 003 bottom smoke discharging pipe, enter radiation recuperator 004 and carry out heat exchange, simultaneously part of smoke is pumped into coal burning machine 001 by circulating flue gas pipe 012 and recycle, make the flue gas that contains dust salt further be cooled to 600 ℃ ~ 650 ℃;
The flue gas that contains dust salt that d. will cool off enters multi-tube dust cleaner 005 and carries out flue gas ash removal, with flue gas and saliferous dust separation, flue gas after the dedusting enters too cotton hot precipitator 006 again and carries out final dusting, flue gas behind the final dusting enters preboiler 008 and cools to 600 ℃, utilize circulating flue gas pipe 012 to be circulated back in the coal burning machine 001 part of smoke, after treating flue gas cool-down to 425 ℃, remaining flue gas is entered air preheater 009, with the air heat to 300 in the air preheater 009 ℃, continue again to enter atmosphere with behind the flue gas cool-down to 180 ℃ by smoke exhaust fan 010;
E. utilize air-flow conveying fan 014 to pump into flow delivery systems 007 behind the saliferous dust collection with multi-tube dust cleaner 005 and the 006 bottom dust outlet discharge of too cotton hot precipitator, carry through air-flow to be cooled to pack outward transport about 70 ℃.
Circulation entered coal burning machine 001 after a described flue gas part after multi-tube dust cleaner 005 dedusting entered 051 dedusting of secondary multi-tube dust cleaner by circulating flue gas pipeline 012, and the saliferous dust that the 051 bottom dust outlet of secondary multi-tube dust cleaner is discharged enters flow delivery systems 007.
Claims (10)
1. brine waste burning processing system, comprise incinerator, pump into the waste water supercharging equipment of high-pressure atomization waste water to incinerator, feed the gas supply equipment of high-temperature flue gas to incinerator, feed the auxiliary combustion equipment of combustion-supporting gas in the incinerator, the cooling device that the product quenching of incinerator internal reaction gained is handled and the cleaner that the chilling flue gas is carried out purified treatment, it is characterized in that described gas supply equipment is coal burning machine, the high-temperature flue gas that coal burning machine produces connects incinerator by pipeline; Described cooling device is radiator, and the radiator import is connected with incinerator bottom smoke discharging pipe, and outlet conduit connects cleaner; Described cleaner comprises at least one multi-tube dust cleaner, at least one too cotton hot precipitator, described multi-tube dust cleaner exhanst gas outlet is connected by pipeline in turn with too cotton hot precipitator gas approach, the dust outlet of described multi-tube dust cleaner bottom is communicated with the dust outlet conduit of too cotton hot precipitator bottom, and the dust outlet of described too cotton hot precipitator bottom is set up a pipeline in addition and connected flow delivery systems; Described too cotton hot precipitator exhanst gas outlet pipeline is communicated with preboiler, and preboiler connects air preheat machine and smoke exhaust fan successively by pipeline.
2. according to the described a kind of brine waste burning processing system of claim 1, it is characterized in that establishing in addition on the described radiator circulating flue gas pipeline and be communicated with coal burning machine.
3. according to the described a kind of brine waste burning processing system of claim 1, it is characterized in that establishing a circulating flue gas pipeline in addition on the pipeline between described multi-tube dust cleaner exhanst gas outlet and the too cotton hot precipitator gas approach is communicated with coal burning machine.
4. a kind of brine waste burning processing system according to claim 3, it is characterized in that setting up the secondary multi-tube dust cleaner on the described circulating flue gas pipeline, the dust outlet conduit of described secondary multi-tube dust cleaner bottom is communicated with the dust outlet of too cotton hot precipitator bottom.
5. according to the described a kind of brine waste burning processing system of claim 3, have additional the flue gas recirculation blower fan on the circulating flue gas pipeline that it is characterized in that establishing in addition on the pipeline between described multi-tube dust cleaner exhanst gas outlet and the too cotton hot precipitator gas approach.
6. according to the described a kind of brine waste burning processing system of claim 4, pipeline between the dust outlet that it is characterized in that described secondary multi-tube dust cleaner bottom and the dust outlet of too cotton hot precipitator bottom and the dust of described multi-tube dust cleaner bottom export with pipeline between the dust of too cotton hot precipitator bottom exports and communicate, and have additional the air-flow conveying fan.
7. according to the described a kind of brine waste burning processing system of claim 1, it is characterized in that having additional the clean room on the pipeline between described coal burning machine and the incinerator.
8. according to the described a kind of brine waste burning processing system of claim 1, it is characterized in that described auxiliary combustion equipment is neat gas burner, be arranged at the pipeline that coal burning machine is connected with incinerator that is used for the tangential setting of incinerator body of heater.
9. according to the described a kind of brine waste incineration treatment method of one of claim 1 ~ 8, it is characterized in that may further comprise the steps:
A. the atomizing brine waste of the high-temperature flue gas that at first coal burning machine is produced, the generation of waste water supercharging equipment pumps into the incinerator chamber, both haptoreactions, brine waste gasifies and mixes with high-temperature flue gas, it is 900 ℃ ~ 950 ℃ that described high-temperature flue gas enters temperature, makes mixed flue-gas temperature control at 700 ℃ ~ 780 ℃;
B. the neat gas burner by auxiliary combustion equipment injects natural gas and carries out drying and incinerating then, makes temperature control below 1000 ℃, the dry flue gas that contains dust salt that produces;
C. the flue gas that contains dust salt is discharged from incinerator bottom smoke discharging pipe, enters radiation recuperator and carries out heat exchange, simultaneously part of smoke is pumped into coal burning machine by the circulating flue gas pipe and recycles, and makes the flue gas that contains dust salt further be cooled to 600 ℃ ~ 650 ℃;
The flue gas that contains dust salt that d. will cool off enters multi-tube dust cleaner and carries out flue gas ash removal, with flue gas and saliferous dust separation, flue gas after the dedusting enters too cotton hot precipitator again and carries out final dusting, flue gas behind the final dusting enters preboiler and cools to 600 ℃, utilize the circulating flue gas pipe to be circulated back in the coal burning machine part of smoke, after treating flue gas cool-down to 425 ℃, remaining flue gas is entered air preheater, with the air heat to 300 in the air preheater ℃, continue again to enter atmosphere with behind the flue gas cool-down to 180 ℃ by smoke exhaust fan;
E. utilize the air-flow conveying fan to pump into flow delivery systems behind the saliferous dust collection with multi-tube dust cleaner and too cotton hot precipitator bottom dust outlet discharge, carry through air-flow to be cooled to pack outward transport about 70 ℃.
10. a kind of brine waste incineration treatment method according to claim 9, it is characterized in that a described flue gas part after the multi-tube dust cleaner dedusting enters by the circulating flue gas pipeline that circulation enters coal burning machine after the dedusting of secondary multi-tube dust cleaner, the saliferous dust that dust outlet in secondary multi-tube dust cleaner bottom is discharged enters flow delivery systems.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105169815A (en) * | 2015-09-06 | 2015-12-23 | 中国石油集团东北炼化工程有限公司吉林设计院 | Method for dedusting high temperature flue gas of high-salt waste liquid incinerator |
| CN109775786A (en) * | 2017-11-15 | 2019-05-21 | 江苏金牛环保工程设备有限公司 | A kind of high-salt wastewater burns desalting system and its processing method |
| CN110804465A (en) * | 2019-11-20 | 2020-02-18 | 张俊霞 | Device and method for producing hydrogen by gasifying plastic biomass |
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| CN109775786A (en) * | 2017-11-15 | 2019-05-21 | 江苏金牛环保工程设备有限公司 | A kind of high-salt wastewater burns desalting system and its processing method |
| CN110804465A (en) * | 2019-11-20 | 2020-02-18 | 张俊霞 | Device and method for producing hydrogen by gasifying plastic biomass |
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| Publication number | Publication date |
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| CN103277803B (en) | 2015-12-02 |
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