CN109210551A - A kind of low concentration sodium salt organic waste liquid burning furnace, incineration system and burning process - Google Patents

A kind of low concentration sodium salt organic waste liquid burning furnace, incineration system and burning process Download PDF

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Publication number
CN109210551A
CN109210551A CN201811189279.7A CN201811189279A CN109210551A CN 109210551 A CN109210551 A CN 109210551A CN 201811189279 A CN201811189279 A CN 201811189279A CN 109210551 A CN109210551 A CN 109210551A
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CN
China
Prior art keywords
burning
evaporator
sodium
gas
flue gas
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Pending
Application number
CN201811189279.7A
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Chinese (zh)
Inventor
陈泓远
游述怀
陈平生
匡乐
鲁路
屈志勇
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Shaanxi rejude Engineering Technology Co.,Ltd.
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Yueyang Mapower Thermprocess & Electromagnetic Technology Co ltd
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Priority to CN201811189279.7A priority Critical patent/CN109210551A/en
Publication of CN109210551A publication Critical patent/CN109210551A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/04Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste liquors, e.g. sulfite liquors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00Arrangements of devices for treating smoke or fumes
    • F23J15/02Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/022Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
    • F23J15/025Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00Arrangements of devices for treating smoke or fumes
    • F23J15/02Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/04Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00Arrangements of devices for treating smoke or fumes
    • F23J15/06Arrangements of devices for treating smoke or fumes of coolers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J3/00Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2204/00Supplementary heating arrangements
    • F23G2204/10Supplementary heating arrangements using auxiliary fuel
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00Specific waste
    • F23G2209/10Liquid waste
    • F23G2209/101Waste liquor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2217/00Intercepting solids
    • F23J2217/10Intercepting solids by filters
    • F23J2217/102Intercepting solids by filters electrostatic
    • 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
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/30Technologies for a more efficient combustion or heat usage

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)

Abstract

The present invention relates to a kind of low concentration sodium salt organic waste liquid burning furnaces, including burner, vertical tipburn Burning Room, First Transition section, gas solid separation expansion chamber, Π shape convection cell.The invention further relates to the incineration system including aforementioned incinerator, further include waste drains pump, gasifier, electric precipitator, air-introduced machine, chimney and drum, and incinerator is exported by incineration flue gas and is sequentially connected with electric precipitator, air-introduced machine and chimney.The invention also includes the burning process using aforementioned incineration system.The present invention will utilize most water and light component organic liquid waste in the self-produced superheated steam gasification organic liquid waste of incineration flue gas, fused solution deslagging (sodium peroxide), sodium peroxide conversion sodium carbonate, gas-solid sedimentation separation, solid particle are disappeared the technological incorporation such as kinetic energy sedimentation separation, equipment (soot blower) deashing, artificial snaking, extend the equipment checking maintenance period, the sodium salt incineration treatment method for the economical recycling waste heat byproduct steam for being unable to stable operation originally is made to become possible.

Description

A kind of low concentration sodium salt organic waste liquid burning furnace, incineration system and burning process
Technical field
The present invention relates to fine chemistry industry and petrochemical industry, in particular to a kind of low concentration sodium salt organic waste liquid burning Furnace, incineration system and burning process.
Background technique
Burning is that chemical plant handles toxic, harmful waste effective means, and it is anti-to burn the oxidative pyrolysis reacted be under high temperature It answers.Incineration treatment technology require burn reaction generate high-temperature gas must be quickly cooled down (Quench) to avoid burn back reaction and The generation of side reaction.The method of Quench generally takes water Quench and waste heat boiler to be quickly cooled down two methods.It is small to amount of waste Incinerator, the method for generally taking water spray Quench reprocess waste water;The incinerator bigger to waste throughput, generally The method for being quickly cooled down byproduct steam using waste heat boiler improves the economy of incinerator operation.The low organic liquid waste of concentration, Its burning process requires supplementation with a large amount of fuel, the water in the waste liquid that gasifies, and reaches incineration temperature.
The burning post-processing of the salt bearing liquid wastes bigger to treating capacity is relatively difficult, especially to sodium salt organic liquid waste.Such as Fruit does not recycle heat, will lose a large amount of thermal energy, substantially reduces the economy of device operation;If recycling heat, produced after burning Raw carrying molten state, solid-state sodium peroxide and other inorganic sodiums in flue gas will be attached on heat exchange tube wall, be formed " dirty Dirty layer " reduces heat exchange efficiency, shortens the equipment cycle of operation, or even be unable to run equipment.
Summary of the invention
The purpose of the present invention is being improved and being innovated for disadvantage present in background technique and problem, a kind of warp is provided Sodium salt incinerator, incineration system and the incineration treatment method for the recycling waste heat byproduct steam that Ji property is good, stability is strong.
The technical scheme is that construct a kind of low concentration sodium salt organic waste liquid burning furnace, including it is burner, vertical The top of Burning Room is arranged in tipburn Burning Room, First Transition section, gas solid separation expansion chamber, Π shape convection cell, the burner, Organic liquid waste and steam entry is arranged in Burning Room upper side, corresponding position setting organic liquid waste and water vapour distribution in Burning Room Device, positioned at the lower section of burner, funnel shaped molten state slag-drip opening, the Π shape convection cell packet is arranged in the bottom of the Burning Room The first convection section, the second changeover portion, the second convection section are included, a foot i.e. first of the Π shape convection cell is arranged in the expansion chamber The first dry ash extraction mouth is arranged in the bottom and connection, bottom of convection section, and the side of expansion chamber passes through First Transition section and Burning Room Side connection, the first evaporator is set in the First Transition section, the second evaporator is set in expansion chamber, the first convection section and Third evaporator and the 4th evaporator are respectively set in second convection section, wherein third evaporator is located at the top of expansion chamber, and Plugging is arranged in lower section, and vapor superheater is arranged in the top of Π shape convection cell i.e. the second changeover portion, sets below the 4th evaporator Boiler water preheater is set, the corresponding position of the third evaporator, steam superheater and boiler water preheater is provided with soot blower, The second dry ash extraction mouth is arranged in second convection section bottom of Π shape convection cell, and side is arranged incineration flue gas and exports, and is located at boiler water Below preheater.
The third evaporator and the 4th evaporator is vertical-type evaporator, including several vertical heat exchange sleeves, Heat exchanger tube, set header, set header are arranged above heat exchange sleeve, and the heat exchange sleeve includes heat exchange sleeve outer tube and its interior The heat exchange sleeve inner tube in portion, set header include the set header inner tube for covering header outer tube and its inside, all heat exchange sleeves The top of inner tube, which is connected to, covers header inner tube, bottom opening, and at least four heat exchanger tubes, heat exchanger tube is arranged around each heat exchange sleeve Top and bottom be respectively communicated with the upper/lower terminal of heat exchange sleeve outer tube, and be connected to set header outer tube and set header Space between inner tube, described sleeve pipe header inner tube are provided with saturation boiler water inlet, and set header outer tube setting water, vapour go out Mouthful.
More preferably, it is uniformly arranged six roots of sensation heat exchanger tube around every heat exchange sleeve, heat exchange sleeve is square array distribution.
The incinerator inner wall lays lining.
First Transition section is arranged cold wind and protects water ejector.
Heat exchange sleeve outer tube lower head in third evaporator, the 4th evaporator is connected with tube bank or across tube bank, reduces shake It is dynamic.
Another technical solution of the invention be construct a kind of low concentration sodium salt organic liquor incineration system, including incinerator, Waste drains pump, gasifier, electric precipitator, air-introduced machine, chimney and drum, incinerator by incineration flue gas export with electric precipitator, draw Blower and chimney are sequentially connected;
The gasifier includes organic liquid waste entrance, organic liquid waste outlet and organic exhaust gas outlet, and organic liquid waste outlet connection is burnt The organic liquid waste and steam entry of furnace are burnt, organic exhaust gas exports the burner of logical waste drains pump connection incinerator;
The drum is arranged in the top of incinerator, and tedge, down-comer are separately connected the first evaporator in incinerator, Two evaporators, third evaporator, steam superheater, the 4th evaporator and boiler water preheater, steam pipe connect steam superheating Device, and gasifier, burner, soot blower are connected by steam superheater;
The air-introduced machine provides negative pressure for incinerator, the electric precipitator of its upstream.
The steel structure support that gasifier and drum pass through incinerator.
Yet another aspect of the invention is to construct a kind of low concentration sodium salt organic waste liquid burning process, step packet It includes:
1. an air-introduced machine is arranged in system, operated under tiny structure;
2. supplement fuel is entered by burner, guarantee when heating and normal operating when Burning Room burns, and drives for incinerator Safety is affected and provides supplemental heat;
3. low concentration sodium salt organic liquid waste enters gasifier, it is incinerated the superheated steam gasification of flue gas generation;
4. the saturated vapor and light component organic liquid waste even gas distribution that generate in gasifier enter having reached for tiny structure and burn The Burning Room for burning temperature burns;
5. the organic liquid waste being concentrated in gasifier is pumped to burner by waste liquid, after self-produced superheated steam atomization It is burned into the Burning Room for having reached incineration temperature;
6. incineration temperature is much higher than sodium peroxide fusing point, the inorganic sodium of the generation after burning is made to be completely converted into the mistake of molten state Sodium oxide molybdena;
7. top spray enters furnace after organic liquid waste atomization, make the sodium peroxide drop even dispersion for burning the molten state generated after burning High-temperature gas in;Top spray air-flow (drop containing sodium peroxide) is identical with gravity direction, is conducive to gas-liquid separation, avoids droplets from winged Splash inboard wall of furnace body;
8. changing airflow direction, gas is discharged from Burning Room side wall, realizes sodium peroxide drop and the gas separation of molten state; The sodium peroxide drop of molten state is in Burning Room bottom collection, gravity flow discharge Burning Room;
9. the flue gas (containing molten state sodium peroxide drop) of Burning Room discharge matches air cooling, water-spraying control simultaneously provides reaction item Part is brought down below flue-gas temperature the fusing point and decomposition temperature of sodium carbonate, and molten state sodium peroxide drop is promoted as often as possible to turn Sodium carbonate solid particle is turned to, then is further cooled down by the first evaporator;
10. flue gas (particle containing solid sodium carbonate and unconverted sodium peroxide drop) enters expansion chamber, flue gas (contains solid carbonic acid Sodium particle and unconverted sodium peroxide drop) reduction of speed, the second evaporator are cooling (particle containing solid sodium carbonate and does not turn to flue gas The sodium peroxide drop of change) further cool down (the sodium peroxide drop for being not converted into sodium carbonate is made to be fully converted to solid-state) drop Plugging is arranged in speed, top of settling chamber, reduces solid particle kinetic energy, further gas solid separation;Sodium carbonate and peroxide after separation Change sodium solid particle to be discharged from expansion chamber, expansion chamber pipe row is designed as can repairing and Quick replacing structure;
The flue gas (particle containing solid sodium carbonate and sodium peroxide particle) of expansion chamber enters Π shape convection cell out, is steamed by third Power transmission dedusting after device, steam superheater, the 4th evaporator, boiler water preheater cool down is sent out, soot blower, manhole is arranged in convection cell, Third evaporator, steam superheater, the 4th vertical comb of evaporator, steam superheater square comb, with soot blower or manually Product is removed in the dry ash (solid sodium carbonate particle and sodium peroxide particle) of heat exchange pipe surface, the dry ash a part blown down is from sedimentation Room discharge, a part are discharged from the second convection cell bottom, and another part enters electric precipitator with flue gas;
Flue gas (particle containing solid sodium carbonate and sodium peroxide particle) enters qualified discharge after electric precipitator dedusting, the dirt removed Electric precipitator is discharged after collecting in (solid sodium carbonate particle and sodium peroxide particle).
Temperature control in one of the embodiments, in burning process is as follows: incineration temperature >=1100 DEG C, cigarette after burning Gas >=1100 DEG C, air distribution water-spraying control is to 650 ~ 700 DEG C;By-product steam expansion chamber flue-gas temperature is down to 350 ~ 390 DEG C;Flue gas goes out 200 ~ 250 DEG C of convection section temperature.
The advantages of the present invention: the superheated steam gasification organic liquid waste that the present invention will utilize incineration flue gas self-produced In most water and light component organic liquid waste, fused solution deslagging (sodium peroxide), sodium peroxide convert sodium carbonate, gas-solid Sedimentation separation, solid particle disappear the technological incorporation such as kinetic energy sedimentation separation, equipment (soot blower) deashing, artificial snaking, extend equipment The checking maintenance period makes the sodium salt burning disposal side for the economical recycling waste heat byproduct steam for being unable to stable operation originally Method becomes possible.
Present invention process process is simple, and equipment investment is low, and land occupation saves, and technical process is safe and reliable, and there is no risk Technique and equipment.
Third evaporator, the 4th evaporator vertical enable water, vapour Natural Circulation, reduce incinerator operation Expense, unique heat exchanger tube arrangement improve the fever and chills efficiency of unit volume, reduce equipment investment.
Utilize most water and light component organic liquid waste in the self-produced superheated steam gasification organic liquid waste of incineration flue gas, drop Low incinerator load, and the earth reduce supplement fuel usage amount, substantially increase incinerator equipment investment and device fortune Capable economy.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment.
Fig. 2 is the heat-exchanging tube bundle component diagram of third evaporator, the 4th evaporator.
Fig. 3 is the heat-exchanging tube bundle layout drawing of third evaporator, the 4th evaporator.
Fig. 4 is the structural schematic diagram of another embodiment.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing Give preferred embodiment of the invention.But the invention can be realized in many different forms, however it is not limited to this paper institute The embodiment of description.On the contrary, purpose of providing these embodiments is make it is more thorough and comprehensive to the disclosure.
It should be noted that when element be considered as " setting " on the other element, it can be directly setting or company Connect on the other element or may be simultaneously present centering elements.
Unless otherwise defined, the skill of all technical and scientific terms and technical field of the invention used herein The normally understood meaning of art personnel is identical.Term used in the description is intended merely to describe specifically to implement purpose, is not It is intended to limit the present invention.
Embodiment 1
As shown in Figure 1, a kind of low concentration sodium salt organic waste liquid burning furnace 1, including burner 101, vertical tipburn Burning Room 102, First Transition section 103, gas solid separation expansion chamber 104, Π shape convection cell 105, the burner 101 are arranged in Burning Room Organic liquid waste and steam entry 106 is arranged in 102 top, 102 upper side of Burning Room, corresponding position setting in Burning Room 102 Organic liquid waste and water vapour distributor 107, positioned at the lower section of burner 101, the bottom setting of the Burning Room 102 is funnel shaped Molten state slag-drip opening 108, the Π shape convection cell 105 include the first convection section 121, the second changeover portion 115, the second convection section 122, a foot i.e. bottom of the first convection section 121 and the connection of the Π shape convection cell 105, bottom is arranged in the expansion chamber 104 The first dry ash extraction mouth 109 is arranged in portion, and the side of expansion chamber 104 is connected by the side of First Transition section 103 and Burning Room 102 It is logical, the first evaporator 110 is set in the First Transition section 103, second evaporator 111, the first convection current are set in expansion chamber 104 Third evaporator 112 and the 4th evaporator 113 is respectively set in section 121 and the second convection section 122, wherein third evaporator 112 Positioned at the top of expansion chamber 104, and plugging 114 is arranged in lower section, sets in the top of Π shape convection cell 105 i.e. the second changeover portion 115 Vapor superheater 116 is set, boiler water preheater 117, the third evaporator 112, steam is arranged in the lower section of the 4th evaporator 113 The corresponding position of superheater 116 and boiler water preheater 117 is provided with soot blower 118, the second convection section of Π shape convection cell 105 The second dry ash extraction mouth 119 is arranged in 122 bottoms, and side is arranged incineration flue gas and exports 120, is located at 117 lower section of boiler water preheater.
As shown in Figure 2,3, the third evaporator 112 and the 4th evaporator 113 are vertical-type evaporator, if including Vertical heat exchange sleeve 130, heat exchanger tube 131, set header 132 are done, set header 132 is arranged above heat exchange sleeve 130, institute The heat exchange sleeve inner tube 134 that heat exchange sleeve 130 includes heat exchange sleeve outer tube 133 and its inside is stated, set header 132 includes casing The top connection of the set header inner tube 136 of header outer tube 135 and its inside, all heat exchange sleeve inner tubes 134 covers in header At least four heat exchanger tubes 131, the top and bottom of heat exchanger tube 131 are arranged in pipe 136, bottom opening, each 130 surrounding of heat exchange sleeve The upper/lower terminal being respectively communicated with inside heat exchange sleeve outer tube 133, and it is connected to set header outer tube 135 and set header inner tube 136 Between space, described sleeve pipe header inner tube 136 is provided with saturation boiler water inlet 137, and set header outer tube setting water, vapour go out Mouth 138.
More preferably, it is uniformly arranged six roots of sensation heat exchanger tube 131 around every heat exchange sleeve 130, heat exchange sleeve 130 is square array Distribution.
1 inner wall of incinerator lays lining.
First Transition section 103 is arranged cold wind and protects water ejector.
133 lower head of heat exchange sleeve outer tube in third evaporator 112, the 4th evaporator 113 is with tube bank or across tube bank phase Even, vibration is reduced.
Embodiment 2
As shown in figure 4, a kind of low concentration sodium salt organic liquor incineration system, including incinerator 1, waste drains pump 2, gasifier 3, electricity remove Dirt device 4, air-introduced machine 5, chimney 6 and drum 7, incinerator 1 pass through incineration flue gas outlet 120 and electric precipitator 4, air-introduced machine 5 and cigarette Chimney 6 is sequentially connected;
The gasifier 3 includes organic liquid waste entrance, organic liquid waste outlet and organic exhaust gas outlet, and organic liquid waste outlet connection is burnt The organic liquid waste and steam entry 106 of furnace 1 are burnt, organic exhaust gas exports the burner 101 that logical waste drains pump 2 connects incinerator 1;
The top of incinerator 1 is arranged in the drum 7, and tedge, down-comer are separately connected the first evaporator in incinerator 1 110, the second evaporator 111, third evaporator 112, steam superheater 116, the 4th evaporator 113 and boiler water preheater 117, Its steam pipe connects steam superheater 116, and connects gasifier 3, burner 101, soot blower 118 by steam superheater 116;
The air-introduced machine 5 is that incinerator 1, the electric precipitator 4 of its upstream provide negative pressure.
Using incinerator steel structure support gasifier and drum, make compact overall structure, occupied area is small.
Embodiment 3
A kind of low concentration sodium salt organic waste liquid burning process, using incineration system as described in example 2, step includes:
1. an air-introduced machine is arranged in system, operated under tiny structure;
2. supplement fuel is entered by burner 101, heating and normal operating when Burning Room 102 burns, and drives for incinerator 1 When guarantee safety it is affected and provide supplemental heat;
3. low concentration sodium salt organic liquid waste enters gasifier 3, it is incinerated the superheated steam gasification of flue gas generation;
4. the saturated vapor and light component organic liquid waste even gas distribution that generate in gasifier 3 enter having reached for tiny structure and burn The Burning Room 102 for burning temperature burns;
5. the organic liquid waste being concentrated in gasifier 3 is sent by waste drains pump 2 to burner 101, by self-produced superheated steam mist Enter the burning of Burning Room 102 for having reached incineration temperature after change;
6. incineration temperature is much higher than sodium peroxide fusing point, the inorganic sodium of the generation after burning is made to be completely converted into the mistake of molten state Sodium oxide molybdena;
7. top spray enters furnace after organic liquid waste atomization, make the sodium peroxide drop even dispersion for burning the molten state generated after burning High-temperature gas in;Top spray air-flow (drop containing sodium peroxide) is identical with gravity direction, is conducive to gas-liquid separation, avoids droplets from winged Splash inboard wall of furnace body;
8. changing airflow direction, gas is discharged from 102 side wall of Burning Room, realizes the sodium peroxide drop and gas point of molten state From;The sodium peroxide drop of molten state is in 10 bottom collection of Burning Room, gravity flow discharge Burning Room 102;
9. the flue gas (containing molten state sodium peroxide drop) of Burning Room discharge matches air cooling, water-spraying control simultaneously provides reaction item Part is brought down below flue-gas temperature the fusing point and decomposition temperature of sodium carbonate, and molten state sodium peroxide drop is promoted as often as possible to turn Sodium carbonate solid particle is turned to, then is further cooled down by the first evaporator;
10. flue gas (particle containing solid sodium carbonate and unconverted sodium peroxide drop) enters expansion chamber, flue gas (contains solid carbonic acid Sodium particle and unconverted sodium peroxide drop) reduction of speed, the second evaporator are cooling (particle containing solid sodium carbonate and does not turn to flue gas The sodium peroxide drop of change) further cool down (the sodium peroxide drop for being not converted into sodium carbonate is made to be fully converted to solid-state) drop Plugging is arranged in speed, top of settling chamber, reduces solid particle kinetic energy, further gas solid separation;Sodium carbonate and peroxide after separation Change sodium solid particle to be discharged from expansion chamber, expansion chamber pipe row is designed as can repairing and Quick replacing structure;
The flue gas (particle containing solid sodium carbonate and sodium peroxide particle) of expansion chamber enters Π shape convection cell out, is steamed by third Power transmission dedusting after device, steam superheater, the 4th evaporator, boiler water preheater cool down is sent out, soot blower, manhole is arranged in convection cell, Third evaporator, steam superheater, the 4th vertical comb of evaporator, steam superheater square comb, with soot blower or manually Product is removed in the dry ash (solid sodium carbonate particle and sodium peroxide particle) of heat exchange pipe surface, the dry ash a part blown down is from sedimentation Room discharge, a part are discharged from the second convection cell bottom, and another part enters electric precipitator with flue gas;
Flue gas (particle containing solid sodium carbonate and sodium peroxide particle) enters qualified discharge after electric precipitator dedusting, the dirt removed Electric precipitator is discharged after collecting in (solid sodium carbonate particle and sodium peroxide particle).
Temperature control in one of the embodiments, in burning process is as follows: incineration temperature >=1100 DEG C, cigarette after burning Gas >=1100 DEG C, air distribution water-spraying control is to 650 ~ 700 DEG C;By-product steam expansion chamber flue-gas temperature is down to 350 ~ 390 DEG C;Flue gas goes out 200 ~ 250 DEG C of convection section temperature.
The present invention will have using most water in the self-produced superheated steam gasification organic liquid waste of incineration flue gas and light component Machine waste liquid disappears fused solution deslagging (sodium peroxide), sodium peroxide conversion sodium carbonate, gas-solid sedimentation separation, solid particle The technological incorporation such as energy sedimentation separation, equipment (soot blower) deashing, artificial snaking, extend the equipment checking maintenance period, and making originally cannot The sodium salt incineration treatment method of the economical recycling waste heat byproduct steam of stable operation becomes possible.
Present invention process process is simple, and equipment investment is low, and land occupation saves, and technical process is safe and reliable, and there is no risk Technique and equipment.
Third evaporator, the 4th evaporator vertical enable water, vapour Natural Circulation, reduce incinerator operation Expense, unique heat exchanger tube arrangement improve the fever and chills efficiency of unit volume, reduce equipment investment.
Utilize most water and light component organic liquid waste in the self-produced superheated steam gasification organic liquid waste of incineration flue gas, drop Low incinerator load, and the earth reduce supplement fuel usage amount, substantially increase incinerator equipment investment and device fortune Capable economy.
Embodiment of the present invention is only the description carried out to the preferred embodiment of the present invention, not to the present invention Conception and scope is defined, and under the premise of not departing from design philosophy of the present invention, engineers and technicians are to this hair in this field The all variations and modifications that bright technical solution is made should all fall into protection scope of the present invention, the claimed skill of the present invention Art content, is all described in the claims.

Claims (10)

1. a kind of low concentration sodium salt organic waste liquid burning furnace, it is characterised in that: including burner, vertical tipburn Burning Room, The top of Burning Room, Burning Room upper side is arranged in one changeover portion, gas solid separation expansion chamber, Π shape convection cell, the burner Organic liquid waste and steam entry is arranged in face, and corresponding position setting organic liquid waste and water vapour distributor, are located at burning in Burning Room Funnel shaped molten state slag-drip opening is arranged in the lower section of device, the bottom of the Burning Room, and the Π shape convection cell includes the first convection current The a foot i.e. bottom of the first convection section of the Π shape convection cell is arranged in section, the second changeover portion, the second convection section, the expansion chamber Portion is simultaneously connected to, and the first dry ash extraction mouth is arranged in bottom, and the side of expansion chamber is connected to by First Transition section with the side of Burning Room, First evaporator is set in the First Transition section, the second evaporator, the first convection section and the second convection section are set in expansion chamber Third evaporator and the 4th evaporator is inside respectively set, wherein third evaporator is located at the top of expansion chamber, and lower section setting is stifled Pipe, the top of Π shape convection cell i.e. the second changeover portion is interior to be arranged vapor superheater, and the lower section setting boiler water of the 4th evaporator is pre- Hot device, the corresponding position of the third evaporator, steam superheater and boiler water preheater are provided with soot blower, Π shape convection cell The second convection section bottom be arranged the second dry ash extraction mouth, side be arranged incineration flue gas export, be located at boiler water preheater below.
2. low concentration sodium salt organic waste liquid burning furnace according to claim 1, it is characterised in that: the third evaporation Device and the 4th evaporator are vertical-type evaporator, including several vertical heat exchange sleeves, heat exchanger tube, set header, casing collection Case is arranged above heat exchange sleeve, and the heat exchange sleeve includes the heat exchange sleeve inner tube of heat exchange sleeve outer tube and its inside, casing Header includes covering the set header inner tube of header outer tube and its inside, the top connection set header of all heat exchange sleeve inner tubes At least four heat exchanger tubes are arranged around each heat exchange sleeve in inner tube, bottom opening, and the top and bottom of heat exchanger tube, which are respectively communicated with, to be changed The upper/lower terminal of thermal sleeve outer tube, and be connected to set header outer tube and cover the space between header inner tube, described sleeve pipe Header inner tube is provided with saturation boiler water inlet, and water, vapor outlet is arranged in set header outer tube.
3. low concentration sodium salt organic waste liquid burning furnace according to claim 2, it is characterised in that: every heat exchange sleeve week It encloses and is uniformly arranged six roots of sensation heat exchanger tube, heat exchange sleeve is square array distribution.
4. low concentration sodium salt organic waste liquid burning furnace according to claim 1, it is characterised in that: in the incinerator Wall lays lining.
5. low concentration sodium salt organic waste liquid burning furnace according to claim 1, it is characterised in that: the setting of First Transition section Cold wind protects water ejector.
6. low concentration sodium salt organic waste liquid burning furnace according to claim 2, it is characterised in that: third evaporator, Heat exchange sleeve outer tube lower head in four evaporators is connected with tube bank or across tube bank, reduces vibration.
7. a kind of low concentration sodium salt organic liquor incineration system, it is characterised in that: removed including incinerator, waste drains pump, gasifier, electricity Dirt device, air-introduced machine, chimney and drum, incinerator are exported by incineration flue gas and are sequentially connected with electric precipitator, air-introduced machine and chimney;
The gasifier includes organic liquid waste entrance, organic liquid waste outlet and organic exhaust gas outlet, and organic liquid waste outlet connection is burnt The organic liquid waste and steam entry of furnace are burnt, organic exhaust gas exports the burner of logical waste drains pump connection incinerator;
The drum is arranged in the top of incinerator, and tedge, down-comer are separately connected the first evaporator in incinerator, Two evaporators, third evaporator, steam superheater, the 4th evaporator and boiler water preheater, steam pipe connect steam superheating Device, and gasifier, burner, soot blower are connected by steam superheater;
The air-introduced machine provides negative pressure for incinerator, the electric precipitator of its upstream.
8. low concentration sodium salt organic liquor incineration system according to claim 7, it is characterised in that: gasifier and drum are logical Cross the steel structure support of incinerator.
9. a kind of low concentration sodium salt organic waste liquid burning process, which is characterized in that step includes:
1. an air-introduced machine is arranged in system, operated under tiny structure;
2. supplement fuel is entered by burner, guarantee when heating and normal operating when Burning Room burns, and drives for incinerator Safety is affected and provides supplemental heat;
3. low concentration sodium salt organic liquid waste enters gasifier, it is incinerated the superheated steam gasification of flue gas generation;
4. the saturated vapor and light component organic liquid waste even gas distribution that generate in gasifier enter having reached for tiny structure and burn The Burning Room for burning temperature burns;
5. the organic liquid waste being concentrated in gasifier is pumped to burner by waste liquid, after self-produced superheated steam atomization It is burned into the Burning Room for having reached incineration temperature;
6. incineration temperature is much higher than sodium peroxide fusing point, the inorganic sodium of the generation after burning is made to be completely converted into the mistake of molten state Sodium oxide molybdena;
7. top spray enters furnace after organic liquid waste atomization, make the sodium peroxide drop even dispersion for burning the molten state generated after burning High-temperature gas in;Top spray air-flow (drop containing sodium peroxide) is identical with gravity direction, is conducive to gas-liquid separation, avoids droplets from winged Splash inboard wall of furnace body;
8. changing airflow direction, gas is discharged from Burning Room side wall, realizes sodium peroxide drop and the gas separation of molten state; The sodium peroxide drop of molten state is in Burning Room bottom collection, gravity flow discharge Burning Room;
9. the flue gas (containing molten state sodium peroxide drop) of Burning Room discharge matches air cooling, water-spraying control simultaneously provides reaction item Part is brought down below flue-gas temperature the fusing point and decomposition temperature of sodium carbonate, and molten state sodium peroxide drop is promoted as often as possible to turn Sodium carbonate solid particle is turned to, then is further cooled down by the first evaporator;
10. flue gas (particle containing solid sodium carbonate and unconverted sodium peroxide drop) enters expansion chamber, flue gas (contains solid carbonic acid Sodium particle and unconverted sodium peroxide drop) reduction of speed, the second evaporator are cooling (particle containing solid sodium carbonate and does not turn to flue gas The sodium peroxide drop of change) further cool down (the sodium peroxide drop for being not converted into sodium carbonate is made to be fully converted to solid-state) drop Plugging is arranged in speed, top of settling chamber, reduces solid particle kinetic energy, further gas solid separation;Sodium carbonate and peroxide after separation Change sodium solid particle to be discharged from expansion chamber, expansion chamber pipe row is designed as can repairing and Quick replacing structure;
The flue gas (particle containing solid sodium carbonate and sodium peroxide particle) of expansion chamber enters Π shape convection cell out, is steamed by third Power transmission dedusting after device, steam superheater, the 4th evaporator, boiler water preheater cool down is sent out, soot blower, manhole is arranged in convection cell, Third evaporator, steam superheater, the 4th vertical comb of evaporator, steam superheater square comb, with soot blower or manually Product is removed in the dry ash (solid sodium carbonate particle and sodium peroxide particle) of heat exchange pipe surface, the dry ash a part blown down is from sedimentation Room discharge, a part are discharged from the second convection cell bottom, and another part enters electric precipitator with flue gas;
Flue gas (particle containing solid sodium carbonate and sodium peroxide particle) enters qualified discharge after electric precipitator dedusting, the dirt removed Electric precipitator is discharged after collecting in (solid sodium carbonate particle and sodium peroxide particle).
10. low concentration sodium salt organic liquor incineration system according to claim 9, it is characterised in that: in burning process Temperature control is as follows: incineration temperature >=1100 DEG C, flue gas >=1100 DEG C after burning, air distribution water-spraying control is to 650 ~ 700 DEG C;By-product Steam expansion chamber flue-gas temperature is down to 350 ~ 390 DEG C;Flue gas goes out 200 ~ 250 DEG C of convection section temperature.
CN201811189279.7A 2018-10-12 2018-10-12 A kind of low concentration sodium salt organic waste liquid burning furnace, incineration system and burning process Pending CN109210551A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111550813A (en) * 2020-05-12 2020-08-18 安徽省益农化工有限公司 Waste liquid incineration equipment for pesticide production
CN117003226A (en) * 2023-09-28 2023-11-07 江苏钠博恩新材料有限公司 Hard carbon composite material, preparation method and application thereof

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CN106989405A (en) * 2017-05-31 2017-07-28 北京石油化工工程有限公司 The stove of organic waste liquid burning containing sodium salt and burning process method
CN209309997U (en) * 2018-10-12 2019-08-27 岳阳钟鼎热工电磁科技有限公司 A kind of low concentration sodium salt organic waste liquid burning furnace and incineration system

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JPH11159719A (en) * 1997-11-26 1999-06-15 Nippon Steel Corp Incinerating method of waste
JP2002310402A (en) * 2001-02-06 2002-10-23 Nkk Corp Utilizing facility for gas produced by gasifying melting furnace
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CN111550813A (en) * 2020-05-12 2020-08-18 安徽省益农化工有限公司 Waste liquid incineration equipment for pesticide production
CN117003226A (en) * 2023-09-28 2023-11-07 江苏钠博恩新材料有限公司 Hard carbon composite material, preparation method and application thereof

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