CN114198764A - Incineration pretreatment process for high-sulfur waste liquid - Google Patents
Incineration pretreatment process for high-sulfur waste liquid Download PDFInfo
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- CN114198764A CN114198764A CN202111482537.2A CN202111482537A CN114198764A CN 114198764 A CN114198764 A CN 114198764A CN 202111482537 A CN202111482537 A CN 202111482537A CN 114198764 A CN114198764 A CN 114198764A
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- combustion chamber
- flue gas
- waste liquid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/04—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste liquors, e.g. sulfite liquors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
- F23G5/12—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating using gaseous or liquid fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
- F23G5/14—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/20—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having rotating or oscillating drums
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/442—Waste feed arrangements
- F23G5/446—Waste feed arrangements for liquid waste
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/48—Preventing corrosion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/50—Control or safety arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/04—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J7/00—Arrangement of devices for supplying chemicals to fire
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
Abstract
The invention relates to the technical field of hazardous wastes, and particularly discloses a high-sulfur waste liquid incineration pretreatment process, which comprises the following steps: A. igniting the burner before the materials are put into the burner, and burning the fuel to enable the temperature of the combustion chamber to reach about 900 ℃; B. spraying high-sulfur waste liquid after the temperature of the combustion chamber reaches 900 ℃; C. the high-sulfur waste liquid is combusted, and alkali liquor is sprayed into the combustion chamber. The invention mainly utilizes the combustion chamber to carry out primary combustion on the high-sulfur waste liquid, utilizes the secondary combustion chamber to carry out full combustion on combustible flue gas generated by the combustion chamber, further carries out desulfurization through tail gas alkaline washing, removes gaseous SOx in a two-stage alkaline washing tower, removes most of sulfur in the waste liquid, discharges the flue gas after the flue gas is treated by the invention and enters a main incineration line and reaches the hazardous waste incineration pollution control standard, plays a role in protecting the buffer of the rotary kiln, avoids the corrosion of large-scale waste heat boilers and other thermal equipment in a rotary kiln incineration system, and keeps the stability of the main incineration system.
Description
Technical Field
The invention relates to the technical field of hazardous wastes, in particular to a high-sulfur waste liquid incineration pretreatment process.
Background
The hazardous waste can be classified into solid hazardous waste, liquid hazardous waste and sticky hazardous waste according to the form classification, the incineration method is an effective treatment method for the liquid hazardous waste, toxic organic matters in waste liquid can be effectively destroyed through incineration, the method is an effective means for reducing and detoxifying the hazardous waste at present, the rotary kiln incineration is a mainstream process for the incineration treatment of the hazardous waste at present, and the design of the rotary kiln is suitable for continuous feeding and treatment of the solid hazardous waste, so that the method is widely applied to a hazardous waste incineration system.
With the continuous development of industry, the hazardous waste components generated by waste producing enterprises are gradually complicated, the output of liquid hazardous waste is gradually increased, when the waste liquid contains more sulfur elements, a large amount of SOx smoke is generated in the burning process of spraying into a rotary kiln, the corrosivity is strong, the service life of refractory materials and equipment is greatly reduced, the operation and maintenance cost is increased, in addition, the rotary kiln is not suitable for continuously spraying a large amount of waste liquid, the treatment capability of the rotary kiln on the liquid hazardous waste is limited, for the burning treatment of the high-sulfur hazardous waste, the current method of material compatibility feeding is adopted for treatment, the design standard of feeding the sulfur elements into the rotary kiln is reached through the compatibility of the high-sulfur hazardous waste with low sulfur content, however, the high-sulfur waste liquid has the characteristics of strong acidity and high calorific value, the phenomenon of deflagration is easy to occur during burning, and the condition of over-standard emission of the burning smoke is easy to occur, in addition, when liquid hazardous waste high-sulfur-content substances are added, and other alkaline components (such as sodium, potassium and the like) exist in the added mixed materials, low molten salt is formed and is in a sticky shape, more other substances are continuously adhered to the mixed materials, the phenomenon of coking is caused, the normal operation of the rotary kiln is influenced, frequent shutdown is possibly caused, if enough compatible materials are lacked, a large amount of overstocking of the high-sulfur waste liquid is caused, great potential safety hazards are brought to a hazardous waste treatment plant, the reduction of the sulfur element content in the hazardous waste through incineration pretreatment is a new idea, the treatment capacity of the incineration system on the high-sulfur waste liquid is greatly improved, but the deflagration phenomenon possibly occurs in the incineration pretreatment process of the high-sulfur waste liquid, a specific process is required to eliminate the safety risk, therefore, the SOx content in the flue gas generated by the incineration of the high-sulfur waste liquid is reduced to the purpose of prolonging the incineration system of the rotary kiln, the rotary kiln protection device has the advantages that the rotary kiln protection device has the function of protecting the rotary kiln, solves the problems that high-sulfur-content flue gas corrodes the rotary kiln and a flue gas treatment system and greatly reduces the service life of the rotary kiln, indirectly reduces operation and maintenance cost, and simultaneously ensures the safe operation of an incineration pretreatment process.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the incineration pretreatment process of the high-sulfur waste liquid, which has the advantage of protecting a rotary kiln, solves the problems that the high-sulfur-containing flue gas corrodes the rotary kiln and a flue gas treatment system and greatly reduces the service life of the rotary kiln, indirectly reduces the operation and maintenance cost, and simultaneously ensures the safe operation of the incineration pretreatment process.
The invention relates to a high-sulfur waste liquid incineration pretreatment process, which comprises the following steps:
A. igniting the burner before the materials are put into the burner, and burning the fuel to enable the temperature of the combustion chamber to reach about 900 ℃;
B. spraying high-sulfur waste liquid after the temperature of the combustion chamber reaches 900 ℃;
C. spraying alkali liquor into the combustion chamber while combusting the high-sulfur waste liquid;
D. the flue gas after combustion in the combustion chamber enters a second combustion chamber, fuel is properly added to ensure that the temperature of the flue gas reaches over 1100 ℃, and combustible substances in the flue gas are fully combusted;
E. the part of the outlet of the secondary combustion chamber is provided with an explosion venting device, and when the pressure of the combustion chamber or the secondary combustion chamber is too high due to the deflagration of waste liquid, the pressure is automatically relieved;
F. the flue gas enters a quench tower after passing through an explosion venting device;
G. the flue gas enters a first-stage alkaline washing tower after passing through a quench tower, the first-stage alkaline washing tower is in a form of countercurrent alkaline washing, and then the flue gas enters a first-stage alkaline washing demister;
H. the flue gas enters a secondary alkaline tower after passing through a primary alkaline tower, the form of the secondary alkaline tower is countercurrent alkaline washing, and then the flue gas enters a secondary alkaline washing demister;
I. and the flue gas enters a secondary combustion chamber of a main incineration line of the rotary kiln, a quench tower of the main incineration line or a flue gas purification system of the main incineration line after passing through a secondary alkali washing demister.
The incineration pretreatment process of the high-sulfur waste liquid comprises the step E, wherein the explosion venting device is in a normally closed state when the pressure of the explosion venting device does not exceed the process design pressure, the explosion venting device is automatically opened and releases the pressure outwards to the range of the design value when the pressure exceeds the design value, and the explosion venting device automatically restores to the closed state when the pressure returns to the normal range.
The invention relates to a process for pretreating high-sulfur waste liquid by incineration, wherein fuels used in a combustion chamber in the step A comprise but are not limited to diesel oil, natural gas and fuel oil.
According to the incineration pretreatment process of the high-sulfur waste liquid, in the step G and the step H, pall ring acid-resistant water mist-removing materials are embedded inside the demister of the primary alkaline tower and the demister of the secondary alkaline tower.
According to the incineration pretreatment process of the high-sulfur waste liquid, refractory pouring materials are lined inside the combustion chamber and the secondary combustion chamber in the step D.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention mainly utilizes the combustion chamber to carry out preliminary combustion on the high-sulfur waste liquid, utilizes the secondary chamber to carry out full combustion on combustible flue gas generated by the combustion chamber, further carries out desulfurization through tail gas alkali washing, gaseous SOx is removed in the two-stage alkali washing tower, most of sulfur in the waste liquid is removed, the flue gas enters a main burning line after being treated by the invention and is discharged after reaching the hazardous waste burning pollution control standard, the buffer effect of protecting the rotary kiln is achieved, the corrosion of large-scale waste heat boilers and other thermal equipment in the rotary kiln burning system is avoided, the stability of the main burning system is maintained, meanwhile, the explosion venting device also ensures the safety of waste liquid burning pretreatment, in addition, the burning pretreatment system has smaller treatment amount, so the system is relatively simple, the occupied area is small, and the installation and the maintenance are easy.
2. The invention solves the problem of insufficient removal efficiency of the traditional deacidification alkali washing process by adopting a mode of countercurrent alkali washing through a primary alkali washing tower and a secondary alkali washing tower, namely the flow direction of flue gas is opposite to the flow direction of alkali liquor, and the combination of the two alkali washing towers.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a flow chart of the treatment process of the high-sulfur waste liquid of the present invention;
FIG. 2 is a flow diagram of the high sulfur solid waste treatment process of the present invention;
FIG. 3 is a process flow diagram of the flue gas purification system of the main incineration line of the invention.
Detailed Description
In the following description, for purposes of explanation, numerous implementation details are set forth in order to provide a thorough understanding of the various embodiments of the present invention. It should be understood, however, that these implementation details are not to be interpreted as limiting the invention. That is, in some embodiments of the invention, such implementation details are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.
In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1-3, the incineration pretreatment process of the high-sulfur waste liquid of the present invention includes the following steps:
A. igniting the burner before the materials are put into the burner, and burning the fuel to enable the temperature of the combustion chamber to reach about 900 ℃;
B. spraying high-sulfur waste liquid after the temperature of the combustion chamber reaches 900 ℃;
C. spraying alkali liquor into the combustion chamber while combusting the high-sulfur waste liquid;
D. the flue gas after combustion in the combustion chamber enters a second combustion chamber, fuel is properly added to ensure that the temperature of the flue gas reaches over 1100 ℃, and combustible substances in the flue gas are fully combusted;
E. the part of the outlet of the secondary combustion chamber is provided with an explosion venting device, and when the pressure of the combustion chamber or the secondary combustion chamber is too high due to the deflagration of waste liquid, the pressure is automatically relieved;
F. the flue gas enters a quench tower after passing through an explosion venting device;
G. the flue gas enters a first-stage alkaline washing tower after passing through a quench tower, the first-stage alkaline washing tower is in a form of countercurrent alkaline washing, and then the flue gas enters a first-stage alkaline washing demister;
H. the flue gas enters a secondary alkaline tower after passing through a primary alkaline tower, the form of the secondary alkaline tower is countercurrent alkaline washing, and then the flue gas enters a secondary alkaline washing demister;
I. and the flue gas enters a secondary combustion chamber of a main incineration line of the rotary kiln, a quench tower of the main incineration line or a flue gas purification system of the main incineration line after passing through a secondary alkali washing demister.
And E, the explosion venting device is in a normally closed state when the pressure of the explosion venting device does not exceed the process design pressure, the explosion venting device is automatically opened and releases the pressure to the outside within the range of the design value when the pressure exceeds the design value, and the explosion venting device automatically restores to the closed state when the pressure restores to the normal range.
The fuel used in the combustion chamber in step a includes, but is not limited to, diesel, natural gas, and fuel oil.
And G and H, embedding pall ring acid-resistant water mist removing materials in the first-stage alkaline washing tower demister and the second-stage alkaline washing tower demister respectively.
And D, lining refractory pouring materials in the combustion chamber and the second combustion chamber in the step D.
Referring to fig. 1, the incineration pretreatment process of the high-sulfur waste liquid comprises the following steps:
A. igniting the burner before the materials are put into the burner, and burning the fuel to enable the temperature of the combustion chamber to reach about 900 ℃;
B. spraying high-sulfur waste liquid after the temperature of the combustion chamber reaches 900 ℃;
C. spraying alkali liquor into the combustion chamber while combusting the high-sulfur waste liquid;
D. the flue gas after combustion in the combustion chamber enters a second combustion chamber, fuel is properly added to ensure that the temperature of the flue gas reaches over 1100 ℃, and combustible substances in the flue gas are fully combusted;
E. the part of the outlet of the secondary combustion chamber is provided with an explosion venting device, and when the pressure of the combustion chamber or the secondary combustion chamber is too high due to the deflagration of waste liquid, the pressure is automatically relieved;
F. the flue gas enters a quench tower after passing through an explosion venting device;
G. the flue gas enters a first-stage alkaline washing tower after passing through a quench tower, the first-stage alkaline washing tower is in a form of countercurrent alkaline washing, and then the flue gas enters a first-stage alkaline washing demister;
H. the flue gas enters a secondary alkaline tower after passing through a primary alkaline tower, the form of the secondary alkaline tower is countercurrent alkaline washing, and then the flue gas enters a secondary alkaline washing demister;
I. and the flue gas enters a secondary combustion chamber of a main incineration line of the rotary kiln after passing through a secondary alkali washing demister.
Referring to fig. 2, the incineration pretreatment process of the high-sulfur solid waste is as follows:
A. igniting the burner before the materials are put into the burner, and burning the fuel to enable the temperature of the combustion chamber to reach about 900 ℃;
B. spraying high-sulfur waste liquid after the temperature of the combustion chamber reaches 900 ℃;
C. spraying alkali liquor into the combustion chamber while combusting the high-sulfur waste liquid;
D. the flue gas after combustion in the combustion chamber enters a second combustion chamber, fuel is properly added to ensure that the temperature of the flue gas reaches over 1100 ℃, and combustible substances in the flue gas are fully combusted;
E. the part of the outlet of the secondary combustion chamber is provided with an explosion venting device, and when the pressure of the combustion chamber or the secondary combustion chamber is too high due to the deflagration of waste liquid, the pressure is automatically relieved;
F. the flue gas enters a quench tower after passing through an explosion venting device;
G. the flue gas enters a first-stage alkaline washing tower after passing through a quench tower, the first-stage alkaline washing tower is in a form of countercurrent alkaline washing, and then the flue gas enters a first-stage alkaline washing demister;
H. the flue gas enters a secondary alkaline tower after passing through a primary alkaline tower, the form of the secondary alkaline tower is countercurrent alkaline washing, and then the flue gas enters a secondary alkaline washing demister;
I. and the flue gas enters a main burning line quench tower of the rotary kiln after passing through a secondary alkali washing demister.
Referring to fig. 3, the pretreatment process of the flue gas purification system of the main incineration line comprises the following steps:
A. igniting the burner before the materials are put into the burner, and burning the fuel to enable the temperature of the combustion chamber to reach about 900 ℃;
B. spraying high-sulfur waste liquid after the temperature of the combustion chamber reaches 900 ℃;
C. spraying alkali liquor into the combustion chamber while combusting the high-sulfur waste liquid;
D. the flue gas after combustion in the combustion chamber enters a second combustion chamber, fuel is properly added to ensure that the temperature of the flue gas reaches over 1100 ℃, and combustible substances in the flue gas are fully combusted;
E. the part of the outlet of the secondary combustion chamber is provided with an explosion venting device, and when the pressure of the combustion chamber or the secondary combustion chamber is too high due to the deflagration of waste liquid, the pressure is automatically relieved;
F. the flue gas enters a quench tower after passing through an explosion venting device;
G. the flue gas enters a first-stage alkaline washing tower after passing through a quench tower, the first-stage alkaline washing tower is in a form of countercurrent alkaline washing, and then the flue gas enters a first-stage alkaline washing demister;
H. the flue gas enters a secondary alkaline tower after passing through a primary alkaline tower, the form of the secondary alkaline tower is countercurrent alkaline washing, and then the flue gas enters a secondary alkaline washing demister;
I. and the flue gas enters a flue gas purification system of a main incineration line of the rotary kiln after passing through a secondary alkali washing demister.
In the use of the invention: the method mainly utilizes a combustion chamber to carry out primary combustion on the high-sulfur waste liquid, utilizes a secondary chamber to carry out full combustion on combustible flue gas generated by the combustion chamber, further carries out desulfurization through tail gas alkaline washing, gaseous SOx is removed in a two-stage alkaline washing tower, most of sulfur in the waste liquid is removed, the flue gas enters a main incineration line after being treated by the method, is discharged after reaching the hazardous waste incineration pollution control standard, plays a role in protecting a rotary kiln, avoids corrosion of large-scale waste heat boilers and other thermal equipment in a rotary kiln incineration system, keeps the stability of the main incineration system, simultaneously ensures the safety of waste liquid incineration pretreatment by an explosion venting device, and in addition, the incineration pretreatment system is relatively simple due to small treatment capacity, occupies a small area and is easy to install and maintain.
The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (5)
1. A high-sulfur waste liquid incineration pretreatment process comprises the following steps:
A. igniting the burner before the materials are put into the burner, and burning the fuel to enable the temperature of the combustion chamber to reach about 900 ℃;
B. spraying high-sulfur waste liquid after the temperature of the combustion chamber reaches 900 ℃;
C. spraying alkali liquor into the combustion chamber while combusting the high-sulfur waste liquid;
D. the flue gas after combustion in the combustion chamber enters a second combustion chamber, fuel is properly added to ensure that the temperature of the flue gas reaches over 1100 ℃, and combustible substances in the flue gas are fully combusted;
E. the part of the outlet of the secondary combustion chamber is provided with an explosion venting device, and when the pressure of the combustion chamber or the secondary combustion chamber is too high due to the deflagration of waste liquid, the pressure is automatically relieved;
F. the flue gas enters a quench tower after passing through an explosion venting device;
G. the flue gas enters a first-stage alkaline washing tower after passing through a quench tower, the first-stage alkaline washing tower is in a form of countercurrent alkaline washing, and then the flue gas enters a first-stage alkaline washing demister;
H. the flue gas enters a secondary alkaline tower after passing through a primary alkaline tower, the form of the secondary alkaline tower is countercurrent alkaline washing, and then the flue gas enters a secondary alkaline washing demister;
I. and the flue gas enters a secondary combustion chamber of a main incineration line of the rotary kiln, a quench tower of the main incineration line or a flue gas purification system of the main incineration line after passing through a secondary alkali washing demister.
2. The incineration pretreatment process of a high-sulfur waste liquid according to claim 1, characterized in that: and E, the explosion venting device is in a normally closed state when the pressure of the explosion venting device does not exceed the process design pressure, the explosion venting device is automatically opened and releases the pressure to the outside within the range of the design value when the pressure exceeds the design value, and the explosion venting device automatically restores to the closed state when the pressure restores to the normal range.
3. The incineration pretreatment process of a high-sulfur waste liquid according to claim 1, characterized in that: the fuel used in the combustion chamber in the step A comprises but is not limited to diesel oil, natural gas and fuel oil.
4. The incineration pretreatment process of a high-sulfur waste liquid according to claim 1, characterized in that: and in the step G and the step H, Bauer ring acid-resistant and water mist-removing materials are embedded in the primary alkali wash tower demister and the secondary alkali wash tower demister respectively.
5. The incineration pretreatment process of a high-sulfur waste liquid according to claim 1, characterized in that: and D, lining refractory pouring materials in the combustion chamber and the second combustion chamber in the step D.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111482537.2A CN114198764A (en) | 2021-12-07 | 2021-12-07 | Incineration pretreatment process for high-sulfur waste liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111482537.2A CN114198764A (en) | 2021-12-07 | 2021-12-07 | Incineration pretreatment process for high-sulfur waste liquid |
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| CN114198764A true CN114198764A (en) | 2022-03-18 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040013589A1 (en) * | 2002-07-22 | 2004-01-22 | Bayer Ag | Process for removing mercury from flue gases |
| CN204213938U (en) * | 2014-11-03 | 2015-03-18 | 新中天环保股份有限公司 | Portable poisonous and harmful solid waste fast processing integrating device |
| CN214619604U (en) * | 2021-04-14 | 2021-11-05 | 广州雅居乐固体废物处理有限公司 | Pre-burning device for sulfur-containing waste liquid |
-
2021
- 2021-12-07 CN CN202111482537.2A patent/CN114198764A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040013589A1 (en) * | 2002-07-22 | 2004-01-22 | Bayer Ag | Process for removing mercury from flue gases |
| CN204213938U (en) * | 2014-11-03 | 2015-03-18 | 新中天环保股份有限公司 | Portable poisonous and harmful solid waste fast processing integrating device |
| CN214619604U (en) * | 2021-04-14 | 2021-11-05 | 广州雅居乐固体废物处理有限公司 | Pre-burning device for sulfur-containing waste liquid |
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