CN109838794A - A kind of water-cooling jacket incinerator and method handling salt bearing liquid wastes and exhaust gas - Google Patents
A kind of water-cooling jacket incinerator and method handling salt bearing liquid wastes and exhaust gas Download PDFInfo
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- CN109838794A CN109838794A CN201910148039.0A CN201910148039A CN109838794A CN 109838794 A CN109838794 A CN 109838794A CN 201910148039 A CN201910148039 A CN 201910148039A CN 109838794 A CN109838794 A CN 109838794A
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- 150000003839 salts Chemical group 0.000 title claims abstract description 149
- 238000001816 cooling Methods 0.000 title claims abstract description 108
- 239000010808 liquid waste Substances 0.000 title claims abstract description 92
- 238000000034 method Methods 0.000 title claims abstract description 31
- 239000000498 cooling water Substances 0.000 claims abstract description 81
- 239000007788 liquid Substances 0.000 claims abstract description 73
- 239000002893 slag Substances 0.000 claims abstract description 67
- 238000002347 injection Methods 0.000 claims abstract description 47
- 239000007924 injection Substances 0.000 claims abstract description 47
- 239000000446 fuel Substances 0.000 claims abstract description 43
- 239000002699 waste material Substances 0.000 claims abstract description 39
- 238000007599 discharging Methods 0.000 claims abstract description 35
- 239000007787 solid Substances 0.000 claims abstract description 28
- 238000000605 extraction Methods 0.000 claims abstract description 13
- 230000009466 transformation Effects 0.000 claims abstract description 12
- 239000007789 gas Substances 0.000 claims description 106
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 51
- 239000002912 waste gas Substances 0.000 claims description 37
- 238000002485 combustion reaction Methods 0.000 claims description 31
- 239000011819 refractory material Substances 0.000 claims description 27
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 22
- 239000003546 flue gas Substances 0.000 claims description 21
- 239000002826 coolant Substances 0.000 claims description 19
- 239000008367 deionised water Substances 0.000 claims description 19
- 229910021641 deionized water Inorganic materials 0.000 claims description 19
- 238000011084 recovery Methods 0.000 claims description 17
- 239000000567 combustion gas Substances 0.000 claims description 15
- 239000000295 fuel oil Substances 0.000 claims description 14
- 239000000779 smoke Substances 0.000 claims description 12
- 239000008187 granular material Substances 0.000 claims description 11
- 239000007921 spray Substances 0.000 claims description 9
- 238000013021 overheating Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 5
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- 238000007711 solidification Methods 0.000 abstract description 3
- 230000008023 solidification Effects 0.000 abstract description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract 1
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 239000011651 chromium Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 16
- 238000012545 processing Methods 0.000 description 7
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- 238000000889 atomisation Methods 0.000 description 4
- 210000000038 chest Anatomy 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 238000010304 firing Methods 0.000 description 4
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- 238000005265 energy consumption Methods 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 3
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- 239000000575 pesticide Substances 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000004056 waste incineration Methods 0.000 description 3
- 229910052783 alkali metal Inorganic materials 0.000 description 2
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Abstract
A kind of water-cooling jacket incinerator and method handling salt bearing liquid wastes and exhaust gas, device include that booster burners (10), incinerator (20), waste liquid injection apparatus (30), exhaust blast device (40), water-cooled jacket set (50), cooling water heat exchanger (60) and twin shaft are cooling slag-discharging device (70)；By using bottom burning technology, the complete decomposition that thermal-flame realizes waste is generated in furnace bottom, make liquid melt salt with minimum fuel consumption simultaneously to be smoothly discharged incinerator (20), then make to melt salt phase transformation solidification by twin shaft cooler (70), finally realizes dry ash extraction.This incinerator also uses water-cooling jacket technology simultaneously, forms solid slag layer in furnace lining side towards the fire, realizes " with slag anti-slag ", in the case where abandoning lining containing chromium, effectively extends furnace lining service life, realizes that the long period low cost of incinerator stablizes safe operation.
Description
Technical field
The present invention relates to a kind of water-cooling jacket incinerators and method for handling salt bearing liquid wastes and exhaust gas, belong to saliferous waste product
Processing technology field.
Background technique
With the fast development of the industries such as petrochemical industry, coal chemical industry, papermaking, pesticide, in its production process, frequent outlet
A large amount of high concentration salt bearing liquid wastes, simultaneously containing a large amount of non-biodegradable organic matters in these waste liquids, and constituent part toxicity
It is higher.The method that industrial trade generallys use high temperature incineration handles salt bearing liquid wastes, generates innocuous gas and is discharged into atmosphere, but
The Major Difficulties of the method are that waste liquid can generate low melting point alkaline metal salt in burning, and alkali metal salt is in environment complexity
Fusing point will be in fused solution as low as 600-750 DEG C in high-temperature burner hearth, corrode seriously furnace wall lining, cause equipment that can not grow
Phase operation.
It is common in the prior art, process flow is that salt bearing liquid wastes are passed through in incinerator and burn, and the high-temperature flue gas of generation is straight
It connects into the chilling tank being filled with water, fused salt chilling solidification in flue gas is deposited to chilling pot bottom, and the low-temperature flue gas of chilling tank is logical out
Later atmosphere is discharged into after system processing.Major defect existing for the incinerator and method has:
(1) whole system operation under positive pressure does not meet GB18484 " dangerous waste incineration contamination control standard "；
(2) chilled water (chw) is fully converted into as waste water to be processed in whole system operational process, and water consume is big；
(3) the high-temperature flue gas heat content that liquid waste incineration generates can't recycle, and energy consumption is high；
(4) incinerator uses adiabatic furnace, and the fused salt that salt bearing liquid wastes generate during the burning process corrodes lining tight
Weight, release liner easily block chilling tank, influence device longtime running, need to regularly replace whole furnace lining, maintenance cost is high.
Also in the prior art, process flow is that salt bearing liquid wastes are passed through in burning boiler and burn, the high-temperature flue gas of generation
Radiant cooling room and convection bank are flowed through, flue-gas temperature is gradually decrease under alkali metal salt fusing point, and the major part in flue gas is molten
Salt is solidified into little particle and enters system after dedusting with flue gas.Small part fused salt in flue gas is pooled to furnace bottom along four wall of burner hearth, so
It is discharged to outside furnace by slag-drip opening afterwards.There are major defects to have for the burning boiler:
(1) burning boiler uses Natural Circulation membrane wall structure, and structure is complicated, and operation difficulty is big；
(2) it is limited by furnace cross, which should not handle the salt bearing liquid wastes of Small Amount；
(3) under nominal situation, to guarantee that the smooth deslagging of boiler bottom, furnace bottom need to mend fuel burning and maintain high temperature, increase
Operating cost；
(4) burning boiler uses water pipe form, when handling saliferous waste gas and waste liquid containing corrosive elements,
Afterwards there is inevitable acid dew piont corrosion in system.
Summary of the invention
Present invention solves the technical problem that are as follows: overcome above-mentioned technological deficiency of the existing technology, a kind of handle is provided and is contained
The water-cooling jacket incinerator and method of bisulfate waste liquor and exhaust gas, the object of the present invention is to provide a kind of easy to operate, the operation is stable,
Meet the incinerator of the processing salt bearing liquid wastes and exhaust gas of various loads, it can be ensured that organic matter is thorough in salt bearing liquid wastes and exhaust gas
Bottom oxygenolysis, and pass through the scientific design of water-cooling jacket furnace wall, realize the maximization in lining service life, it is ensured that incinerator is long-acting
Low cost operation.
A kind of technical solution that the present invention solves are as follows: water-cooling jacket incinerator for handling salt bearing liquid wastes and exhaust gas, comprising:
Booster burners (10), incinerator (20), waste liquid injection apparatus (30), exhaust blast device (40), water-cooled jacket set (50),
Cooling water heat exchanger (60) and twin shaft are cooling slag-discharging device (70)；
Booster burners (10) are located at incinerator bottom, and salt bearing liquid wastes injection apparatus (30) is located at booster burners (10)
Top, salt bearing liquid wastes injection apparatus (30) and exhaust blast device (40) are also all located at incinerator (20) lower part, incinerator (20)
High-temperature region is formed on bottom, realizes slag tap with minimum fuel consumption；
Incinerator (20) bottom is equipped with the slag-drip opening (23) of outlet liquid fused salt, and twin shaft cooling slag-discharging device (70), which is located at, to be burned
The outside of furnace (20), and be located at below the slag-drip opening (23) of outlet liquid fused salt；
Water-cooled jacket set (50) is tightly attached on the outside of incinerator (20) furnace wall, and deionized water is filled in inside；
Cooling water heat exchanger (60) is set on the outside of incinerator (20) furnace wall, and the entrance of cooling water heat exchanger (60) connects water
The outlet of cold clamping device (50), the entrance of outlet connection water-cooled jacket set (50) of cooling water heat exchanger (60).
Before booster burners of igniting (10), it is passed through deionized water in water-cooled jacket set (50), is changed with cooling water
Hot device (60) cooperation carries out cycle heat exchange, cools down to refractory material (21)；After booster burners of igniting (10), make to burn
When furnace (20) fire box temperature reaches the operating temperature of setting, waste liquid injection apparatus (30) and/or exhaust blast device (40) are to furnace
After spraying salt bearing liquid wastes and/or exhaust gas in thorax, when salt bearing liquid wastes and/or high exhaust gas calorific value, cuts down combustion-supporting fuel, make burner hearth temperature
When degree maintains the operating temperature of setting, when salt bearing liquid wastes and/or low exhaust gas calorific value, increase combustion-supporting fuel (combustion gas or combustion
Oil), when fire box temperature being made to maintain the operating temperature of setting, thermal oxide burning disposal is carried out, high-temperature flue gas is generated, passes through smoke evacuation
Outlet (24) is sent, and is generated liquid fused salt by slag-drip opening (23) and is discharged into twin shaft cooling slag-discharging device (70)；
Twin shaft cooling slag-discharging device (70) accepts the molten slag that incinerator (20) slag-drip opening (23) exclude, and then passes through cooling
Heat exchange makes molten slag mutually become solid granulates, finally realizes convenient and safe dry ash extraction；The cooling slag-discharging device of twin shaft simultaneously
(70) heat recovery is carried out using the heat of transformation of molten slag.
After booster burners of igniting (10), incinerator (20) fire box temperature is made to reach the operating temperature of setting, setting
Operating temperature is 1000 DEG C or more；When salt bearing liquid wastes and/or high exhaust gas calorific value, cuts down combustion-supporting fuel, maintain fire box temperature
In the operating temperature of setting, the operating temperature set is 1000 DEG C or more；When salt bearing liquid wastes and/or low exhaust gas calorific value, increase
Add combustion-supporting fuel i.e. combustion gas or fuel oil, when fire box temperature being made to maintain the operating temperature of setting, the operating temperature that sets as
1000 DEG C or more.
Water-cooled jacket set (50) includes cooling water inlet (51), baffle plate (52) and cooling water outlet (53), cooling water
Entrance (51) is lower than cooling water outlet (53)；Baffle plate (52) is set between cooling water inlet (51) and cooling water outlet (53),
For water conservancy diversion；
Water-cooled jacket set (50) is tightly attached on the outside of incinerator (20) furnace wall, and deionized water is filled in inside, and ionized water uses
Closed cycle mode is forced, 30 DEG C~40 DEG C or so of deionized water enters water-cooled jacket set by cooling water inlet (51)
(50), it is then flowed up by baffle plate (52), enters cooling water heat exchanger (60) eventually by cooling water outlet (53), water
The cooling water temperature of cold clamping device (50) discharge is at 60 DEG C~90 DEG C；Baffle plate (52), which mainly rises, prevents flow field dead zone and reinforcing
The effect of heat exchange can both use sandwich tape well format, can also use spiral form；Water-cooled jacket set (50) makes incinerator
(20) refractory material (21) of inner wall laying
Incinerator by the enhanced heat exchange of water-cooled jacket set (50) interior cooling water and furnace wall refractory (21) to
Fiery face temperature is lower than the melting temperature of salt, solidifies operative liquid fused salt, forms solid slag layer, protects refractory material (21), avoids
It is corroded by liquid high-temperature molten salt.
Waste liquid injection apparatus (30) can spray into salt bearing liquid wastes and carry out suspension combustion in incinerator (20), waste liquid injection dress
(30) are set equipped with nozzle, select form of nozzle according to the viscosity of salt bearing liquid wastes, these performance indicators of dregginess；Waste liquid injection dress
Setting (30) further includes cooling wind runner (32), the through hole phase that cooling wind runner (32) is opened with corresponding position on incinerator (20)
It is logical, it is passed through cooling wind into cooling wind runner (32), the furnace by through hole to waste liquid injection apparatus (30) in incinerator (20)
Part in thorax carries out overheating protection.
A kind of water-cooling jacket incinerator handling salt bearing liquid wastes and exhaust gas according to claim 3, feature exist
In: exhaust blast device (40), including exhaust gas endless tube (41), Waste-gas gun (42) and Waste-gas gun coolant flow channel (43)；
Exhaust gas flows through exhaust gas endless tube (41) and enters each branch Waste-gas gun (42), and the burner hearth for being then sprayed into incinerator (20) is fired
It burns；Waste-gas gun coolant flow channel (43) is communicated with the through hole that corresponding position on incinerator (20) is opened, Waste-gas gun coolant flow channel
(43) it is passed through cooling wind in, overheating protection is carried out to Waste-gas gun (42)；
When exhaust gas is low-BTU gas, Waste-gas gun coolant flow channel (43) can be cancelled；When exhaust gas is low-pressure gas, give up
Air gun (42) can be cancelled, and exhaust gas is directly entered hearth combustion through through-hole by what is opened on incinerator (20).
Cooling water heat exchanger (60), the high-temperature water for water-cooled jacket set (50) to be discharged carry out cooling heat exchange, then
It is passed through water-cooled jacket set (50) to recycle, cooling water heat exchanger (60) can either be changed according to the difference of technique using cold water
Heat also can carry out heat recovery using air preheater.
Twin shaft cooling slag-discharging device (70) accepts the molten slag that incinerator (20) slag-drip opening (23) exclude, and then passes through cooling
Heat exchange makes molten slag mutually become solid granulates, finally realizes convenient and safe dry ash extraction；The cooling slag-discharging device of twin shaft simultaneously
(70) heat recovery is carried out using the heat of transformation of molten slag.
Incinerator (20) inner wall lays refractory material (21), and incinerator (20) bottom is disposed with the refractory-lined ovens that inclination angle is A °
Bottom (22), and the lowest part in refractory-lined ovens bottom (22) is disposed with the slag-drip opening (23) of outlet liquid fused salt, incinerator (20) top
It is disposed with smoke evacuation outlet (24).
A kind of water-cooling jacket incinerating method handling salt bearing liquid wastes and exhaust gas, steps are as follows:
(1) before booster burners of igniting (10), it is passed through deionized water in water-cooled jacket set (50), with cooling water
Heat exchanger (60) cooperation carries out cycle heat exchange, cools down to refractory material (21)；
(2) after booster burners of igniting (10), when so that incinerator (20) fire box temperature is reached the operating temperature of setting (preferably
Be 1000 DEG C or more), waste liquid injection apparatus (30) and/or exhaust blast device (40) sprayed into burner hearth salt bearing liquid wastes and/or
Exhaust gas；
(3) salt bearing liquid wastes and/or exhaust gas calorific value are judged, when salt bearing liquid wastes and/or high exhaust gas calorific value, abatement is helped
Fuel is fired, when fire box temperature being made to maintain the operating temperature of setting (preferably 1000 DEG C or more), when salt bearing liquid wastes and/or exhaust gas
When calorific value is low, increase combustion-supporting fuel (combustion gas or fuel oil), when so that the fire box temperature is maintained the operating temperature of setting (preferably
1000 DEG C or more),
(4) thermal oxide burning disposal is carried out in burner hearth, generates high-temperature flue gas, by smoke evacuation outlet (24) discharge, is generated
Liquid fused salt is discharged into twin shaft cooling slag-discharging device (70) by slag-drip opening (23)；
(5) twin shaft cooling slag-discharging device (70) accepts the molten slag that incinerator (20) slag-drip opening (23) exclude, and then passes through
Cooling heat transferring makes molten slag mutually become solid granulates, finally realizes convenient and safe dry ash extraction；The cooling deslagging of twin shaft simultaneously
Device (70) carries out heat recovery using the heat of transformation of molten slag.
The advantages of the present invention over the prior art are that:
(1) salt bearing liquid wastes and exhaust gas that the present invention relates to a kind of to generate the industries such as chemical industry, papermaking, pesticide carry out at burning
The environmental protecting device of reason makes the incinerator with water-cooling jacket furnace wall and its lining life-prolonging method, is suitble to salt bearing liquid wastes burning or saliferous
Waste liquid and exhaust gas carry out the various workings such as multifuel combustion.
(2) booster burners of the invention are located at incinerator bottom, and booster burners are equipped with combustion air entrance and combustion-supporting
Fuel injection device, the combustion-supporting fuel injection device are referred mainly to for combustion-supporting combustion gas needed for spraying maintenance incineration temperature or are helped
The gas-liquid gun array of fuel oil is fired, gas-liquid gun array is equipped with combustion-supporting fuel gas inlet and combustion-supporting fuel filler, can be according to process conditions
Or the different free switchings for realizing fuel oil and combustion gas of combustion conditions.
(3) the water-cooling jacket incinerator of processing salt bearing liquid wastes and exhaust gas of the invention, it is characterised in that exhaust blast dress
Setting in incinerator lower part, including exhaust gas endless tube, Waste-gas gun and Waste-gas gun coolant flow channel.Exhaust gas flows through exhaust gas endless tube into each
Waste-gas gun is then sprayed into hearth combustion.Waste-gas gun coolant flow channel is communicated with the through hole that corresponding position on incinerator is opened, interior logical
Enter cooling wind to protect Waste-gas gun.When exhaust gas is low-BTU gas, Waste-gas gun coolant flow channel can be cancelled；When exhaust gas is
When low-pressure gas, cancel Waste-gas gun, exhaust gas is by entering burner hearth through through-hole on incinerator furnace wall.
(4) present invention passes through the lightening design of the enhanced heat exchange and refractory liner of cooling water in water-cooling jacket, in furnace lining
Side towards the fire form solid slag layer, effective protection furnace lining avoids the erosion of high-temperature molten salt, realizes " with slag anti-slag ", extends furnace lining and uses
Service life guarantees incinerator long period, inexpensive stable operation.
(5) the combustion-supporting fuel of the present invention and salt bearing liquid wastes, exhaust gas, which are all sprayed into from incinerator lower part, carries out suspension combustion, using cigarette
The mode of gas uplink forms high-temperature region in burner hearth bottom, realizes the slag tap of minimum fuel consumption, then cooling by twin shaft
Device realizes melt cinder solidification, last dry ash extraction.
Detailed description of the invention
Fig. 1 is the structure chart of incinerator of the present invention；
Fig. 2 is each layer temperature schematic diagram of incinerator water-cooling jacket of the present invention furnace wall partial cutaway view and furnace wall；
Specific embodiment
The invention will be described in further detail in the following with reference to the drawings and specific embodiments.
Apparatus of the present invention are a kind of using industrial rows such as high temperature incineration method realization petrochemical industry, coal chemical industry, papermaking, pesticides
The environmental protecting device of salt bearing liquid wastes and exhaust gas harmless treatment that industry generates.For such salt bearing liquid wastes, exhaust gas, conventional processing device
Have with the common problem of method: the lining service life is short, operation energy consumption is high；The present invention is designed by water-cooled jacket set, serves as a contrast burner hearth
In side towards the fire temperature lower than melting salt ash fusion point, fused salt is formed by curing protective layer, avoids the high-temperature molten salt of burner hearth lining from corroding, realization
" with slag anti-slag ", make saliferous burn burner hearth lining service life extended to 3~5 years by 5~12 months, be greatly reduced operation at
This；Bottom burning technology is used simultaneously, realizes that the liquid fused salt of minimum fuel consumption is smoothly discharged, and operation energy consumption is low, and burner hearth is discharged
The hot break of high-temperature flue gas can be recycled by rear system, be further reduced energy dissipation, the whole series burn the operation of coefficient negative pressure, symbol
Close national environmental standard.Incinerator of the invention be realize salt bearing liquid wastes, exhaust gas long period, low-cost processes it is only it
Choosing.
As shown in Figure 1, a kind of water-cooling jacket incinerator for handling salt bearing liquid wastes and exhaust gas of the present invention, comprising: combustion-supporting combustion
Burner (10), incinerator (20), waste liquid injection apparatus (30), exhaust blast device (40), water-cooled jacket set (50), cooling water
Heat exchanger (60) and twin shaft are cooling slag-discharging device (70)；
Booster burners (10) are located at incinerator bottom, and salt bearing liquid wastes injection apparatus (30) is located at booster burners (10)
Top, salt bearing liquid wastes injection apparatus (30) and exhaust blast device (40) are also all located at incinerator (20) lower part, incinerator (20)
High-temperature region is formed on bottom, realizes slag tap with minimum fuel consumption；
Incinerator (20) bottom is equipped with the slag-drip opening (23) of outlet liquid fused salt, and twin shaft cooling slag-discharging device (70), which is located at, to be burned
The outside of furnace (20), and be located at below the slag-drip opening (23) of outlet liquid fused salt；
Water-cooled jacket set (50) is tightly attached on the outside of incinerator (20) furnace wall, and deionized water is filled in inside；
Cooling water heat exchanger (60) is set on the outside of incinerator (20) furnace wall, and the entrance of cooling water heat exchanger (60) connects water
The outlet of cold clamping device (50), the entrance of outlet connection water-cooled jacket set (50) of cooling water heat exchanger (60).
Before booster burners of igniting (10), it is passed through deionized water in water-cooled jacket set (50), is changed with cooling water
Hot device (60) cooperation carries out cycle heat exchange, cools down to refractory material (21)；After booster burners of igniting (10), make to burn
When furnace (20) fire box temperature reaches the operating temperature of setting, waste liquid injection apparatus (30) and/or exhaust blast device (40) are to furnace
After spraying salt bearing liquid wastes and/or exhaust gas in thorax, when salt bearing liquid wastes and/or high exhaust gas calorific value, cuts down combustion-supporting fuel, make burner hearth temperature
When degree maintains the operating temperature of setting, when salt bearing liquid wastes and/or low exhaust gas calorific value, increase combustion-supporting fuel (combustion gas or combustion
Oil), when fire box temperature being made to maintain the operating temperature of setting, thermal oxide burning disposal is carried out, high-temperature flue gas is generated, passes through smoke evacuation
Outlet (24) is sent, and is generated liquid fused salt by slag-drip opening (23) and is discharged into twin shaft cooling slag-discharging device (70).
Twin shaft cooling slag-discharging device (70) accepts the molten slag that incinerator (20) slag-drip opening (23) exclude, and then passes through cooling
Heat exchange makes molten slag mutually become solid granulates, finally realizes convenient and safe dry ash extraction.The cooling slag-discharging device of twin shaft simultaneously
(70) heat recovery is carried out using the heat of transformation of molten slag.
After booster burners of igniting (10), incinerator (20) fire box temperature is made to reach the operating temperature of setting, setting
Operating temperature is 1000 DEG C or more；When salt bearing liquid wastes and/or high exhaust gas calorific value, cuts down combustion-supporting fuel, maintain fire box temperature
In the operating temperature of setting, the operating temperature of setting is preferably 1000 DEG C or more；When salt bearing liquid wastes and/or exhaust gas calorific value are low
When, increase combustion-supporting fuel (combustion gas or fuel oil), when fire box temperature being made to maintain the operating temperature of setting, the operating temperature of setting
Preferably 1000 DEG C or more.
Cooling water heat exchanger (60) can either be exchanged heat using cold water according to the difference of technique, can also utilize air preheat
Device carries out heat recovery.
Booster burners (10) are equipped with combustion-supporting fuel injection device (11) and combustion air entrance (12), combustion-supporting fuel injection
Device (11) is the gas-liquid gun array for combustion-supporting combustion gas or combustion-supporting fuel oil needed for spraying maintenance incineration temperature, combustion-supporting fuel spray
Injection device (11) is equipped with combustion-supporting fuel gas inlet and combustion-supporting fuel filler, according to Incineration circumstances or can burn requirement condition not
With realizing fuel oil and fuel gas injection into the free switching in booster burners (10)；Booster burners (10) are equipped with combustion air
Entrance (12), the fuel oil and/or combustion gas that the combustion air and combustion-supporting fuel injection device (11) that combustion air entrance (12) enters spray into
It is sufficiently mixed generation thermal-flame, is sprayed into incinerator (20) in real time.
Incinerator (20) inner wall lays refractory material (21), and incinerator (20) bottom is disposed with the refractory-lined ovens that inclination angle is A °
Bottom (22), and the lowest part in refractory-lined ovens bottom (22) is disposed with the slag-drip opening (23) of outlet liquid fused salt, incinerator (20) top
It is disposed with smoke evacuation outlet (24).
Incinerator (20) carries out thermal oxide decomposition and provides space for salt bearing liquid wastes and exhaust gas, and refractory material (21) prevents combustion-supporting
Burner (10) generate thermal-flame heat loss and furnace wall is isolated in thermal-flame；Inclination angle is A ° resistance to
Stove bottom (22) is discharged for fused salt from the slag-drip opening (23) of outlet liquid fused salt；Smoke evacuation outlet (24) is for being discharged incinerator
(20) the internal flue gas generated.
Incinerator (20) internal-combustion temperature is high, when treated waste is the hazardous waste of national regulation, ignition temperature
It is preferred that >=1100 DEG C；When treated waste is not belonging to the hazardous waste of national regulation, ignition temperature is preferably 900 DEG C~1100
℃。
According to the difference of incinerator (20) thermic load, the inclination angle of refractory-lined ovens bottom (22) refers to furnace bottom with respect to the horizontal plane
Angle, the range at A ° of the inclination angle of refractory-lined ovens bottom (22) are 5 °~12 °
Water-cooled jacket set (50) includes cooling water inlet (51), baffle plate (52) and cooling water outlet (53), cooling water
Entrance (51) is lower than cooling water outlet (53)；Baffle plate (52) is set between cooling water inlet (51) and cooling water outlet (53),
For water conservancy diversion；
Water-cooled jacket set (50) is tightly attached on the outside of incinerator (20) furnace wall, and deionized water is filled in inside, and ionized water uses
Closed cycle mode is forced, 30 DEG C~40 DEG C or so of deionized water enters water-cooled jacket set by cooling water inlet (51)
(50), it is then flowed up by baffle plate (52), enters cooling water heat exchanger (60) eventually by cooling water outlet (53), water
The cooling water temperature of cold clamping device (50) discharge is at 60 DEG C~90 DEG C.Baffle plate (52), which mainly rises, prevents flow field dead zone and reinforcing
The effect of heat exchange can both use sandwich tape well format, can also use spiral form.Water-cooled jacket set (50) makes incinerator
(20) refractory material (21) of inner wall laying
Incinerator by the enhanced heat exchange of water-cooled jacket set (50) interior cooling water and furnace wall refractory (21) to
Fiery face temperature is lower than the melting temperature of salt, solidifies operative liquid fused salt, forms solid slag layer, protects refractory material (21), avoids
It is corroded by liquid high-temperature molten salt.
Waste liquid injection apparatus (30) can spray into salt bearing liquid wastes and carry out suspension combustion in incinerator (20), waste liquid injection dress
(30) are set equipped with nozzle, (include: machinery according to the viscosity of salt bearing liquid wastes, these performance indicators of dregginess selection form of nozzle
Atomization or interior mixed, outer mixed, Y type medium atomization nozzle；) waste liquid injection apparatus (30) further includes cooling wind runner (32), it is cooling
Distinguished and admirable road (32) communicates with the through hole that corresponding position on incinerator (20) is opened, and is passed through cooling into cooling wind runner (32)
Wind carries out overheating protection to part of the waste liquid injection apparatus (30) in the burner hearth of incinerator (20) by through hole.
Exhaust blast device (40), including exhaust gas endless tube (41), Waste-gas gun (42) and Waste-gas gun coolant flow channel (43).
Exhaust gas flows through exhaust gas endless tube (41) and enters each branch Waste-gas gun (42), and the burner hearth for being then sprayed into incinerator (20) is fired
It burns.Waste-gas gun coolant flow channel (43) is communicated with the through hole that corresponding position on incinerator (20) is opened, Waste-gas gun coolant flow channel
(43) it is passed through cooling wind in, overheating protection is carried out to Waste-gas gun (42).
When exhaust gas is low-BTU gas, Waste-gas gun coolant flow channel (43) can be cancelled；When exhaust gas is low-pressure gas, give up
Air gun (42) can be cancelled, and exhaust gas is directly entered hearth combustion through through-hole by what is opened on incinerator (20).
Cooling water heat exchanger (60), the high-temperature water for water-cooled jacket set (50) to be discharged carry out cooling heat exchange, then
It is passed through water-cooled jacket set (50) to recycle, cooling water heat exchanger (60) can either be changed according to the difference of technique using cold water
Heat also can carry out heat recovery using air preheater.
Twin shaft cooling slag-discharging device (70) accepts the molten slag that incinerator (20) slag-drip opening (23) exclude, and then passes through cooling
Heat exchange makes molten slag mutually become solid granulates, finally realizes convenient and safe dry ash extraction.The cooling slag-discharging device of twin shaft simultaneously
(70) heat recovery is carried out using the heat of transformation of molten slag.
As shown in Fig. 2, being close to refractory material (21) on the inside of water-cooled jacket set (50), pass through baffle plate (52) enhanced heat exchange
Effect improves incinerator furnace wall heat flux, makes burner hearth refractory material (21) inner wall temperature lower than fused salt ash fusion point, and fused salt solidifies shape
At solid slag layer, solid slag layer is condensed to certain thickness, and solid slag layer outside wall temperature is in fused salt ash fusion point and closes on temperature, solid slag layer outer wall
Fused salt is in a liquid state, and avoids fused salt to refractory material high temperature erosion.
The present apparatus realizes the further scheme that firing efficiency improves: salt bearing liquid wastes calorific value is greater than 2000Kcal/kg, is atomized grain
Diameter meets the preferred constraint condition less than 100 μm, and the further promotion of firing efficiency may be implemented.
The present apparatus realizes complete further scheme of burning: combustion temperature in hearth is greater than 1100 DEG C, and the residence time is greater than 2s,
Meet the preferred constraint condition, salt bearing liquid wastes may be implemented destroys removal rate >=99.999% and more smoothly slag tap by fire.
The present apparatus realizes that burning furnace lining grows tall the further scheme in service life: realizing circulating cooling water flow in water-cooling jacket
Greater than 30t/h, guarantee that solid slag shelf theory thickness is greater than 2mm, liquid slag layer theoretic throat is greater than 5mm.Meet the preferred constraint condition,
The long-life that may be implemented to burn furnace lining runs.
The water-cooling jacket incinerating method of a kind of processing salt bearing liquid wastes and exhaust gas of the invention, steps are as follows:
(1) before booster burners of igniting (10), it is passed through deionized water in water-cooled jacket set (50), with cooling water
Heat exchanger (60) cooperation carries out cycle heat exchange, cools down to refractory material (21)；
(2) after booster burners of igniting (10), when so that incinerator (20) fire box temperature is reached the operating temperature of setting (preferably
Be 1000 DEG C or more), waste liquid injection apparatus (30) and/or exhaust blast device (40) sprayed into burner hearth salt bearing liquid wastes and/or
Exhaust gas；
(3) salt bearing liquid wastes and/or exhaust gas calorific value are judged, when salt bearing liquid wastes and/or high exhaust gas calorific value, abatement is helped
Fuel is fired, when fire box temperature being made to maintain the operating temperature of setting (preferably 1000 DEG C or more), when salt bearing liquid wastes and/or exhaust gas
When calorific value is low, increase combustion-supporting fuel (combustion gas or fuel oil), when so that the fire box temperature is maintained the operating temperature of setting (preferably
1000 DEG C or more),
(4) thermal oxide burning disposal is carried out in burner hearth, generates high-temperature flue gas, by smoke evacuation outlet (24) discharge, is generated
Liquid fused salt is discharged into twin shaft cooling slag-discharging device (70) by slag-drip opening (23)；
(5) twin shaft cooling slag-discharging device (70) accepts the molten slag that incinerator (20) slag-drip opening (23) exclude, and then passes through
Cooling heat transferring makes molten slag mutually become solid granulates, finally realizes convenient and safe dry ash extraction.The cooling deslagging of twin shaft simultaneously
Device (70) carries out heat recovery using the heat of transformation of molten slag.
In the above method, preferred scheme is as follows:
Booster burners (10) are located at incinerator bottom, and salt bearing liquid wastes injection apparatus (30) is located at booster burners (10)
Top, salt bearing liquid wastes injection apparatus (30) and exhaust blast device (40) are also all located at incinerator (20) lower part, incinerator (20)
High-temperature region is formed on bottom, realizes slag tap with minimum fuel consumption；
Incinerator (20) bottom is equipped with the slag-drip opening (23) of outlet liquid fused salt, and twin shaft cooling slag-discharging device (70), which is located at, to be burned
The outside of furnace (20), and be located at below the slag-drip opening (23) of outlet liquid fused salt；
Water-cooled jacket set (50) is tightly attached on the outside of incinerator (20) furnace wall, and deionized water is filled in inside；
Cooling water heat exchanger (60) is set on the outside of incinerator (20) furnace wall, and the entrance of cooling water heat exchanger (60) connects water
The outlet of cold clamping device (50), the entrance of outlet connection water-cooled jacket set (50) of cooling water heat exchanger (60).
Before booster burners of igniting (10), it is passed through deionized water in water-cooled jacket set (50), is changed with cooling water
Hot device (60) cooperation carries out cycle heat exchange, cools down to refractory material (21)；After booster burners of igniting (10), make to burn
When furnace (20) fire box temperature reaches the operating temperature of setting, waste liquid injection apparatus (30) and/or exhaust blast device (40) are to furnace
After spraying salt bearing liquid wastes and/or exhaust gas in thorax, when salt bearing liquid wastes and/or high exhaust gas calorific value, cuts down combustion-supporting fuel, make burner hearth temperature
When degree maintains the operating temperature of setting, when salt bearing liquid wastes and/or low exhaust gas calorific value, increase combustion-supporting fuel (combustion gas or combustion
Oil), when fire box temperature being made to maintain the operating temperature of setting, thermal oxide burning disposal is carried out, high-temperature flue gas is generated, passes through smoke evacuation
Outlet (24) is sent, and is generated liquid fused salt by slag-drip opening (23) and is discharged into twin shaft cooling slag-discharging device (70).
Twin shaft cooling slag-discharging device (70) accepts the molten slag that incinerator (20) slag-drip opening (23) exclude, and then passes through cooling
Heat exchange makes molten slag mutually become solid granulates, finally realizes convenient and safe dry ash extraction.The cooling slag-discharging device of twin shaft simultaneously
(70) heat recovery is carried out using the heat of transformation of molten slag.
After booster burners of igniting (10), incinerator (20) fire box temperature is made to reach the operating temperature of setting, setting
Operating temperature is 1000 DEG C or more；When salt bearing liquid wastes and/or high exhaust gas calorific value, cuts down combustion-supporting fuel, maintain fire box temperature
In the operating temperature of setting, the operating temperature of setting is preferably 1000 DEG C or more；When salt bearing liquid wastes and/or exhaust gas calorific value are low
When, increase combustion-supporting fuel (combustion gas or fuel oil), when fire box temperature being made to maintain the operating temperature of setting, the operating temperature of setting
Preferably 1000 DEG C or more.
Cooling water heat exchanger (60) can either be exchanged heat using cold water according to the difference of technique, can also utilize air preheat
Device carries out heat recovery.
Booster burners (10) are equipped with combustion-supporting fuel injection device (11) and combustion air entrance (12), combustion-supporting fuel injection
Device (11) is the gas-liquid gun array for combustion-supporting combustion gas or combustion-supporting fuel oil needed for spraying maintenance incineration temperature, combustion-supporting fuel spray
Injection device (11) is equipped with combustion-supporting fuel gas inlet and combustion-supporting fuel filler, according to Incineration circumstances or can burn requirement condition not
With realizing fuel oil and fuel gas injection into the free switching in booster burners (10)；Booster burners (10) are equipped with combustion air
Entrance (12), the fuel oil and/or combustion gas that the combustion air and combustion-supporting fuel injection device (11) that combustion air entrance (12) enters spray into
It is sufficiently mixed generation thermal-flame, is sprayed into incinerator (20) in real time.
Incinerator (20) inner wall lays refractory material (21), and incinerator (20) bottom is disposed with the refractory-lined ovens that inclination angle is A °
Bottom (22), and the lowest part in refractory-lined ovens bottom (22) is disposed with the slag-drip opening (23) of outlet liquid fused salt, incinerator (20) top
It is disposed with smoke evacuation outlet (24).
Incinerator (20) carries out thermal oxide decomposition and provides space for salt bearing liquid wastes and exhaust gas, and refractory material (21) prevents combustion-supporting
Burner (10) generate thermal-flame heat loss and furnace wall is isolated in thermal-flame；Inclination angle is A ° resistance to
Stove bottom (22) is discharged for fused salt from the slag-drip opening (23) of outlet liquid fused salt；Smoke evacuation outlet (24) is for being discharged incinerator
(20) the internal flue gas generated.
Incinerator (20) internal-combustion temperature is high, when treated waste is the hazardous waste of national regulation, ignition temperature
It is preferred that >=1100 DEG C；When treated waste is not belonging to the hazardous waste of national regulation, ignition temperature is preferably 900 DEG C~1100
℃。
According to the difference of incinerator (20) thermic load, the inclination angle of refractory-lined ovens bottom (22) refers to furnace bottom with respect to the horizontal plane
Angle, the range at A ° of the inclination angle of refractory-lined ovens bottom (22) are 5 °~12 °
Water-cooled jacket set (50) includes cooling water inlet (51), baffle plate (52) and cooling water outlet (53), cooling water
Entrance (51) is lower than cooling water outlet (53)；Baffle plate (52) is set between cooling water inlet (51) and cooling water outlet (53),
For water conservancy diversion；
Water-cooled jacket set (50) is tightly attached on the outside of incinerator (20) furnace wall, and deionized water is filled in inside, and ionized water uses
Closed cycle mode is forced, 30 DEG C~40 DEG C or so of deionized water enters water-cooled jacket set by cooling water inlet (51)
(50), it is then flowed up by baffle plate (52), enters cooling water heat exchanger (60) eventually by cooling water outlet (53), water
The cooling water temperature of cold clamping device (50) discharge is at 60 DEG C~90 DEG C.Baffle plate (52), which mainly rises, prevents flow field dead zone and reinforcing
The effect of heat exchange can both use sandwich tape well format, can also use spiral form.Water-cooled jacket set (50) makes incinerator
(20) refractory material (21) of inner wall laying
Incinerator by the enhanced heat exchange of water-cooled jacket set (50) interior cooling water and furnace wall refractory (21) to
Fiery face temperature is lower than the melting temperature of salt, solidifies operative liquid fused salt, forms solid slag layer, protects refractory material (21), avoids
It is corroded by liquid high-temperature molten salt.
Waste liquid injection apparatus (30) can spray into salt bearing liquid wastes and carry out suspension combustion in incinerator (20), waste liquid injection dress
(30) are set equipped with nozzle, (include: machinery according to the viscosity of salt bearing liquid wastes, these performance indicators of dregginess selection form of nozzle
Atomization or interior mixed, outer mixed, Y type medium atomization nozzle；) waste liquid injection apparatus (30) further includes cooling wind runner (32), it is cooling
Distinguished and admirable road (32) communicates with the through hole that corresponding position on incinerator (20) is opened, and is passed through cooling into cooling wind runner (32)
Wind carries out overheating protection to part of the waste liquid injection apparatus (30) in the burner hearth of incinerator (20) by through hole.
Exhaust blast device (40), including exhaust gas endless tube (41), Waste-gas gun (42) and Waste-gas gun coolant flow channel (43).
Exhaust gas flows through exhaust gas endless tube (41) and enters each branch Waste-gas gun (42), and the burner hearth for being then sprayed into incinerator (20) is fired
It burns.Waste-gas gun coolant flow channel (43) is communicated with the through hole that corresponding position on incinerator (20) is opened, Waste-gas gun coolant flow channel
(43) it is passed through cooling wind in, overheating protection is carried out to Waste-gas gun (42).
When exhaust gas is low-BTU gas, Waste-gas gun coolant flow channel (43) can be cancelled；When exhaust gas is low-pressure gas, give up
Air gun (42) can be cancelled, and exhaust gas is directly entered hearth combustion through through-hole by what is opened on incinerator (20).
Cooling water heat exchanger (60), the high-temperature water for water-cooled jacket set (50) to be discharged carry out cooling heat exchange, then
It is passed through water-cooled jacket set (50) to recycle, cooling water heat exchanger (60) can either be changed according to the difference of technique using cold water
Heat also can carry out heat recovery using air preheater.
Twin shaft cooling slag-discharging device (70) accepts the molten slag that incinerator (20) slag-drip opening (23) exclude, and then passes through cooling
Heat exchange makes molten slag mutually become solid granulates, finally realizes convenient and safe dry ash extraction.The cooling slag-discharging device of twin shaft simultaneously
(70) heat recovery is carried out using the heat of transformation of molten slag.
As shown in Fig. 2, being close to refractory material (21) on the inside of water-cooled jacket set (50), pass through baffle plate (52) enhanced heat exchange
Effect improves incinerator furnace wall heat flux, makes burner hearth refractory material (21) inner wall temperature lower than fused salt ash fusion point, and fused salt solidifies shape
At solid slag layer, solid slag layer is condensed to certain thickness, and solid slag layer outside wall temperature is in fused salt ash fusion point and closes on temperature, solid slag layer outer wall
Fused salt is in a liquid state, and avoids fused salt to refractory material high temperature erosion.
This method realizes the further scheme that firing efficiency improves: salt bearing liquid wastes calorific value is greater than 2000Kcal/kg, is atomized grain
Diameter meets the preferred constraint condition less than 100 μm, and the further promotion of firing efficiency may be implemented.
This method realizes complete further scheme of burning: combustion temperature in hearth is greater than 1100 DEG C, and the residence time is greater than 2s,
Meet the preferred constraint condition, salt bearing liquid wastes may be implemented destroys removal rate >=99.999% and more smoothly slag tap by fire.
This method realizes that burning furnace lining grows tall the further scheme in service life: realizing circulating cooling water flow in water-cooling jacket
Greater than 30t/h, guarantee that solid slag shelf theory thickness is greater than 2mm, liquid slag layer theoretic throat is greater than 5mm.Meet the preferred constraint condition,
The long-life that may be implemented to burn furnace lining runs.
The present invention realizes the operation of incineration system negative pressure, meets GB18484 " dangerous waste incineration contamination control standard "；Chilling
Water cools down to refractory liner and flue gas by the way of chuck layer indirect heat exchange, not byproduct wastewater；Using water-cooling jacket knot
Structure makes burner hearth lining side towards the fire temperature lower than salt ash fusion point is melted, and forms solid slag protective layer, realizes " with slag anti-slag ", extends the lining longevity
Life reduces operating cost；1000 DEG C of outlet of still exhaust gas temperature or so are burned, hot break can be absorbed and utilized in rear system；This burning
Device uses bottom burning technology, and smooth deslagging is realized under the premise of not increasing fuel consumption, realizes low cost operation；The invention is burned
Device can be used for handling the salt bearing liquid wastes of 10t/h or less Small Amount；This incinerator belongs to atmospheric pressure device, and structure is simple, operation
It is convenient.
It is real that the water-cooling jacket incinerator of processing salt bearing liquid wastes and exhaust gas of the present invention has carried out test in certain project
It tests, operating parameter is as follows:
| Waste liquid amount | Exhausted air quantity | Afterburning tolerance | Cooling water inflow | Flue gas NOX | Carbon monoxide | |
| Unit | kg/h | Nm3/h | Nm3/h | kg/h | mg/Nm3 | mg/Nm3 |
| 100% load | 1800 | 1200 | 80 | 30000 | 66 | 9 |
| 110% load | 1980 | 1320 | 73 | 33000 | 78 | 11 |
| 60% load | 1080 | 720 | 120 | 30000 | 71 | 7 |
Incinerator of the invention puts into operation stable over 2 years, and refractory liner had not been replaced since going into operation, turn(a)round
Between check lining it is intact, sufficiently verify the water-cooling jacket incinerator may be implemented salt bearing liquid wastes and exhaust gas long period, it is low at
This environmental protection operation.
Claims (10)
1. a kind of water-cooling jacket incinerator for handling salt bearing liquid wastes and exhaust gas, characterized by comprising: booster burners (10),
Incinerator (20), waste liquid injection apparatus (30), exhaust blast device (40), water-cooled jacket set (50), cooling water heat exchanger
(60) and twin shaft is cooling slag-discharging device (70)；
Booster burners (10) are located at incinerator bottom, and salt bearing liquid wastes injection apparatus (30) is located at the upper of booster burners (10)
Side, salt bearing liquid wastes injection apparatus (30) and exhaust blast device (40) are also all located at incinerator (20) lower part, incinerator (20) bottom
Portion forms high-temperature region, realizes slag tap with minimum fuel consumption；
Incinerator (20) bottom is equipped with the slag-drip opening (23) of outlet liquid fused salt, and twin shaft cooling slag-discharging device (70) is located at incinerator
(20) outside, and be located at below the slag-drip opening (23) of outlet liquid fused salt；
Water-cooled jacket set (50) is tightly attached on the outside of incinerator (20) furnace wall, and deionized water is filled in inside；
Cooling water heat exchanger (60) is set on the outside of incinerator (20) furnace wall, the entrance connection water cooling folder of cooling water heat exchanger (60)
The outlet of covering device (50), the entrance of outlet connection water-cooled jacket set (50) of cooling water heat exchanger (60).
2. a kind of water-cooling jacket incinerator for handling salt bearing liquid wastes and exhaust gas according to claim 1, it is characterised in that:
Before booster burners of igniting (10), it is passed through deionized water in water-cooled jacket set (50), with cooling water heat exchanger (60)
Cooperation carries out cycle heat exchange, cools down to refractory material (21)；After booster burners of igniting (10), make incinerator (20) furnace
When bore temperature reaches the operating temperature of setting, waste liquid injection apparatus (30) and/or exhaust blast device (40) are sprayed into burner hearth
After salt bearing liquid wastes and/or exhaust gas, when salt bearing liquid wastes and/or high exhaust gas calorific value, cuts down combustion-supporting fuel, maintain fire box temperature
When the operating temperature of setting, when salt bearing liquid wastes and/or low exhaust gas calorific value, increases combustion-supporting fuel, maintain fire box temperature and set
When fixed operating temperature, thermal oxide burning disposal is carried out, generates high-temperature flue gas, is sent by smoke evacuation outlet (24), liquid is generated
Fused salt is discharged into twin shaft cooling slag-discharging device (70) by slag-drip opening (23)；
Twin shaft cooling slag-discharging device (70) accepts the molten slag that incinerator (20) slag-drip opening (23) exclude, and then passes through cooling heat transferring
So that molten slag is mutually become solid granulates, finally realizes convenient and safe dry ash extraction；Twin shaft cooling slag-discharging device (70) benefit simultaneously
Heat recovery is carried out with the heat of transformation of molten slag.
3. a kind of water-cooling jacket incinerator for handling salt bearing liquid wastes and exhaust gas according to claim 2, it is characterised in that:
After booster burners of igniting (10), incinerator (20) fire box temperature is made to reach the operating temperature of setting, the operating temperature of setting
It is 1000 DEG C or more；When salt bearing liquid wastes and/or high exhaust gas calorific value, cuts down combustion-supporting fuel, fire box temperature is made to maintain setting
When operating temperature, the operating temperature set is 1000 DEG C or more；When salt bearing liquid wastes and/or low exhaust gas calorific value, increase combustion-supporting combustion
Material is combustion gas or fuel oil, and when fire box temperature being made to maintain the operating temperature of setting, the operating temperature set is 1000 DEG C or more.
4. a kind of water-cooling jacket incinerator for handling salt bearing liquid wastes and exhaust gas according to claim 1, it is characterised in that:
Water-cooled jacket set (50) includes cooling water inlet (51), baffle plate (52) and cooling water outlet (53), cooling water inlet (51)
Lower than cooling water outlet (53)；Baffle plate (52) is set between cooling water inlet (51) and cooling water outlet (53), is used for water conservancy diversion；
Water-cooled jacket set (50) is tightly attached on the outside of incinerator (20) furnace wall, and deionized water is filled in inside, and ionized water is using pressure
Closed cycle mode, 30 DEG C~40 DEG C or so of deionized water enter water-cooled jacket set (50) by cooling water inlet (51),
Then it is flowed up by baffle plate (52), enters cooling water heat exchanger (60) eventually by cooling water outlet (53), water cooling folder
The cooling water temperature of covering device (50) discharge is at 60 DEG C~90 DEG C；Baffle plate (52), which mainly rises, prevents flow field dead zone and enhanced heat exchange
Effect, can either use sandwich tape well format, can also use spiral form；Water-cooled jacket set (50) makes incinerator (20)
The refractory material (21) of inner wall laying
Incinerator passes through the enhanced heat exchange of water-cooled jacket set (50) interior cooling water and the side towards the fire of furnace wall refractory (21)
Temperature is lower than the melting temperature of salt, solidifies operative liquid fused salt, forms solid slag layer, protects refractory material (21), avoids by liquid
State high-temperature molten salt corrodes.
5. a kind of water-cooling jacket incinerator for handling salt bearing liquid wastes and exhaust gas according to claim 1, it is characterised in that:
Waste liquid injection apparatus (30) can spray into salt bearing liquid wastes and carry out suspension combustion in incinerator (20), on waste liquid injection apparatus (30)
Equipped with nozzle, form of nozzle is selected according to the viscosity of salt bearing liquid wastes, these performance indicators of dregginess；Waste liquid injection apparatus (30) is also
Including cooling wind runner (32), cooling wind runner (32) is communicated with the through hole that corresponding position on incinerator (20) is opened, Xiang Leng
It is passed through cooling wind in distinguished and admirable road (32), the portion by through hole to waste liquid injection apparatus (30) in the burner hearth of incinerator (20)
Divide and carries out overheating protection.
6. a kind of water-cooling jacket incinerator for handling salt bearing liquid wastes and exhaust gas according to claim 1, it is characterised in that:
Exhaust blast device (40), including exhaust gas endless tube (41), Waste-gas gun (42) and Waste-gas gun coolant flow channel (43)；
Exhaust gas flows through exhaust gas endless tube (41) and enters each branch Waste-gas gun (42), and the burner hearth for being then sprayed into incinerator (20) burns；
Waste-gas gun coolant flow channel (43) is communicated with the through hole that corresponding position on incinerator (20) is opened, in Waste-gas gun coolant flow channel (43)
It is passed through cooling wind and overheating protection is carried out to Waste-gas gun (42)；
When exhaust gas is low-BTU gas, Waste-gas gun coolant flow channel (43) is cancelled；When exhaust gas is low-pressure gas, Waste-gas gun (42)
Cancel, exhaust gas is directly entered hearth combustion through through-hole by what is opened on incinerator (20).
7. a kind of water-cooling jacket incinerator for handling salt bearing liquid wastes and exhaust gas according to claim 1, it is characterised in that:
Cooling water heat exchanger (60), the high-temperature water for water-cooled jacket set (50) to be discharged carry out cooling heat exchange, are subsequently passed water cooling
Clamping device (50) recycles, and cooling water heat exchanger (60) can either be exchanged heat using cold water, also can according to the difference of technique
Heat recovery is carried out using air preheater.
8. a kind of water-cooling jacket incinerator for handling salt bearing liquid wastes and exhaust gas according to claim 1, it is characterised in that:
Twin shaft cooling slag-discharging device (70) accepts the molten slag that incinerator (20) slag-drip opening (23) exclude, and then makes liquid by cooling heat transferring
State slag mutually becomes solid granulates, finally realizes convenient and safe dry ash extraction；Twin shaft cooling slag-discharging device (70) utilizes liquid simultaneously
The heat of transformation of state slag carries out heat recovery.
9. a kind of water-cooling jacket incinerator for handling salt bearing liquid wastes and exhaust gas according to claim 1, it is characterised in that:
Incinerator (20) inner wall lays refractory material (21), and incinerator (20) bottom is disposed with the refractory-lined ovens bottom (22) that inclination angle is A °,
And the lowest part in refractory-lined ovens bottom (22) is disposed with the slag-drip opening (23) of outlet liquid fused salt, incinerator (20) top layout has row
Cigarette exports (24).
10. a kind of water-cooling jacket incinerating method for handling salt bearing liquid wastes and exhaust gas, it is characterised in that steps are as follows:
(1) before booster burners of igniting (10), it is passed through deionized water in water-cooled jacket set (50), is exchanged heat with cooling water
Device (60) cooperation carries out cycle heat exchange, cools down to refractory material (21)；
(2) after booster burners of igniting (10), when incinerator (20) fire box temperature being made to reach the operating temperature of setting, waste liquid injection
Device (30) and/or exhaust blast device (40) spray salt bearing liquid wastes and/or exhaust gas into burner hearth；
(3) salt bearing liquid wastes and/or exhaust gas calorific value are judged, when salt bearing liquid wastes and/or high exhaust gas calorific value, cuts down combustion-supporting combustion
Material, makes fire box temperature maintain the operating temperature of setting, when salt bearing liquid wastes and/or low exhaust gas calorific value, increases combustion-supporting fuel, make
Fire box temperature maintains the operating temperature of setting；
(4) thermal oxide burning disposal is carried out in burner hearth, generates high-temperature flue gas, by smoke evacuation outlet (24) discharge, generates liquid
Fused salt is discharged into twin shaft cooling slag-discharging device (70) by slag-drip opening (23)；
(5) twin shaft cooling slag-discharging device (70) accepts the molten slag that incinerator (20) slag-drip opening (23) exclude, and then passes through cooling
Heat exchange makes molten slag mutually become solid granulates, finally realizes convenient and safe dry ash extraction；The cooling slag-discharging device of twin shaft simultaneously
(70) heat recovery is carried out using the heat of transformation of molten slag.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN111678153A (en) * | 2020-06-08 | 2020-09-18 | 苏州臻越流体设备有限公司 | Waste liquid burns and waste heat recovery's integrated device based on temperature measurement |
| CN112303642A (en) * | 2019-08-02 | 2021-02-02 | 中国石油化工股份有限公司 | Cooling device for incineration nozzles and cooling method for incineration nozzles and use thereof |
| CN113511923A (en) * | 2021-04-28 | 2021-10-19 | 郑州大学 | Method for strengthening salt corrosion resistance of refractory lining in situ |
| CN115371061A (en) * | 2022-10-26 | 2022-11-22 | 浙江百能科技有限公司 | High-concentration salt-containing organic waste liquid incineration device and incineration molten slag separation and recovery process |
| CN116143550A (en) * | 2023-02-17 | 2023-05-23 | 华北电力大学 | Method for protecting refractory material by forward utilization of self cladding layer of waste liquid slag |
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| CN111678153A (en) * | 2020-06-08 | 2020-09-18 | 苏州臻越流体设备有限公司 | Waste liquid burns and waste heat recovery's integrated device based on temperature measurement |
| CN113511923A (en) * | 2021-04-28 | 2021-10-19 | 郑州大学 | Method for strengthening salt corrosion resistance of refractory lining in situ |
| CN115371061A (en) * | 2022-10-26 | 2022-11-22 | 浙江百能科技有限公司 | High-concentration salt-containing organic waste liquid incineration device and incineration molten slag separation and recovery process |
| CN116143550A (en) * | 2023-02-17 | 2023-05-23 | 华北电力大学 | Method for protecting refractory material by forward utilization of self cladding layer of waste liquid slag |
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