CN113483348A - Hazardous waste incineration flue gas treatment device and method - Google Patents

Hazardous waste incineration flue gas treatment device and method Download PDF

Info

Publication number
CN113483348A
CN113483348A CN202110594181.5A CN202110594181A CN113483348A CN 113483348 A CN113483348 A CN 113483348A CN 202110594181 A CN202110594181 A CN 202110594181A CN 113483348 A CN113483348 A CN 113483348A
Authority
CN
China
Prior art keywords
flue gas
tower
heat exchanger
communicated
washing tower
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110594181.5A
Other languages
Chinese (zh)
Inventor
高开
王云刚
朱学理
王曦
曾志佳
许继云
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Everbright Greentech Management Shenzhen Co ltd
Original Assignee
Everbright Greentech Management Shenzhen Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Everbright Greentech Management Shenzhen Co ltd filed Critical Everbright Greentech Management Shenzhen Co ltd
Priority to CN202110594181.5A priority Critical patent/CN113483348A/en
Publication of CN113483348A publication Critical patent/CN113483348A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/1456—Removing acid components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/18—Absorbing units; Liquid distributors therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides
    • B01D53/508—Sulfur oxides by treating the gases with solids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/81—Solid phase processes
    • 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
    • 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
    • F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
    • F23J15/025—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
    • 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
    • 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
    • F23J15/08—Arrangements of devices for treating smoke or fumes of heaters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • B01D2258/0283—Flue gases
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Treating Waste Gases (AREA)

Abstract

The invention discloses a hazardous waste incineration flue gas treatment device and a method, wherein the device comprises the following steps: the filter is used for removing smoke dust in the smoke; the smoke heat exchanger is communicated with the filter and used for receiving the smoke discharged by the filter and cooling the smoke; the quenching tower is communicated with the flue gas heat exchanger and is used for receiving the flue gas discharged by the flue gas heat exchanger and cooling the flue gas; the bottom of the washing tower is communicated with the quenching tower and is used for receiving the flue gas discharged by the quenching tower, absorbing HCl gas in the flue gas and collecting HCl solution obtained after the HCl gas is absorbed; the dry-method deacidification tower is communicated with the flue gas heat exchange, the flue gas heat exchanger is communicated with the top of the washing tower, the flue gas heat exchanger is used for receiving the flue gas discharged from the top of the washing tower, heating the flue gas and transmitting the heated flue gas to the dry-method deacidification tower, and the dry-method deacidification tower is used for absorbing oxysulfide in the heated flue gas and simultaneously obtaining sulfate solid.

Description

Hazardous waste incineration flue gas treatment device and method
Technical Field
The invention relates to the field of flue gas treatment, in particular to a hazardous waste incineration flue gas treatment device and method.
Background
Incineration is one currently in widespread use for hazardous waste that is not directly recyclable. The slag and the flue gas produced in the incineration process of the hazardous wastes need to be treated so as to avoid secondary pollution to the environment. The flue gas generated by burning the hazardous waste mainly contains components needing to be treated, such as smoke dust, acid gas, heavy metal, dioxin and the like.
At present, the treatment process of the hazardous waste flue gas is generally adopted, wherein the incineration flue gas after heat exchange of a waste heat boiler is subjected to cooling by a quench tower, dry deacidification, activated carbon adsorption, cloth bag dust removal and wet deacidification.
The prior treatment method has the following defects: only the standard treatment of the flue gas is concerned, the value of comprehensive recycling is not considered, the comprehensive utilization rate is low, and the treatment cost is high.
Therefore, improvements are required to solve the above problems.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a hazardous waste incineration flue gas treatment device, which comprises:
the filter is used for removing smoke dust in the smoke;
the smoke heat exchanger is communicated with the filter and used for receiving the smoke discharged by the filter and cooling the smoke;
the quenching tower is communicated with the flue gas heat exchanger and is used for receiving the flue gas discharged by the flue gas heat exchanger and cooling the flue gas;
the bottom of the washing tower is communicated with the quenching tower and is used for receiving the flue gas discharged by the quenching tower, absorbing HCl gas in the flue gas and collecting HCl solution obtained after the HCl gas is absorbed;
the dry-method deacidification tower is communicated with the flue gas heat exchange, the flue gas heat exchanger is communicated with the top of the washing tower, the flue gas heat exchanger is used for receiving the flue gas discharged from the top of the washing tower, heating the flue gas and transmitting the heated flue gas to the dry-method deacidification tower, and the dry-method deacidification tower is used for absorbing oxysulfide in the heated flue gas and simultaneously obtaining sulfate solid.
Optionally, the scrubber comprises:
the collecting tank is arranged at the bottom of the washing tower and is used for collecting the HCl solution;
the collecting tank is communicated with the collecting tank through a pipeline and is used for receiving the HCl solution collected by the collecting tank;
and the centrifugal pump is arranged on the pipeline and is used for spraying the HCl solution in the collecting tank back to the washing tower through a nozzle.
Optionally, the scrubber further comprises:
a flue gas inlet arranged at the bottom of the washing tower, communicated with the flue gas outlet at the bottom of the quenching tower and used for introducing the flue gas at the bottom of the quenching tower into the bottom of the washing tower,
and the packing layer is arranged in the middle of the washing tower and is used for enabling the flue gas to be in contact with the HCl solution sprayed by the nozzles to absorb the HCl gas in the flue gas.
Optionally, the scrubber further comprises:
the pH detection equipment is arranged in the collecting tank and is used for detecting the pH value of the HCl solution; and/or
And the temperature detection equipment is arranged in the filler layer and is used for detecting the temperature of the filler layer.
Optionally, the dry deacidification tower is used for absorbing sulfur dioxide in the heated flue gas to obtain gypsum.
Optionally, the flue gas heat exchange device comprises a first inlet, a second inlet, a first outlet and a second outlet;
the first inlet is communicated with a flue gas outlet of the filter, the second inlet is communicated with a flue gas outlet of the washing tower, the first outlet is communicated with a flue gas inlet at the top of the quenching tower, the second outlet is communicated with a flue gas inlet at the top of the dry deacidification tower, and the flue gas heat exchange device is used for carrying out heat exchange on the flue gas discharged by the filter and the flue gas discharged by the top of the washing tower.
The application also provides a hazardous waste incineration flue gas treatment method, which comprises the following steps:
removing smoke dust in the smoke through a filter;
the flue gas discharged by the filter is transmitted to a flue gas heat exchanger for cooling;
the flue gas discharged by the flue gas heat exchanger is transmitted to a quenching tower to be cooled;
the flue gas discharged by the quenching tower is transmitted to a washing tower to absorb HCl gas in the flue gas and collect HCl solution obtained after absorbing HCl gas;
the flue gas discharged by the washing tower is transmitted to the flue gas heat exchanger to exchange heat with the flue gas transmitted to the flue gas heat exchanger from the filter, so that the flue gas with the increased temperature is obtained;
and conveying the flue gas with the increased temperature to a dry-method deacidification tower to absorb sulfur oxides in the flue gas with the increased temperature and obtain sulfate solids.
Optionally, the method comprises:
and measuring the temperature of a filler layer in the washing tower, and forming a temperature gradient with a lower upper part and a higher lower part in the filler layer by controlling the flow rate in a nozzle in the washing tower so as to volatilize sulfur oxide dissolved at the upper part of the filler layer in the lower part of the filler layer.
Optionally, the temperature of the flue gas transmitted from the filter to the flue gas heat exchanger is not lower than 650 ℃; and/or
The temperature of the flue gas after the temperature rise is not lower than 180 ℃.
Optionally, the method further comprises:
measuring the pH of the HCl solution;
recovering the HCl solution reaching the preset concentration to obtain hydrochloric acid; and/or
And spraying part of HCl solution which does not reach the concentration back to the washing tower through the nozzle, and continuously absorbing HCl gas.
In order to solve the technical problems at present, the invention provides a hazardous waste incineration flue gas treatment device and a method. The treatment device and the method utilize hydrogen chloride gas in flue gas after high-risk waste incineration to be very soluble in water, separate the hydrogen chloride gas from sulfur dioxide, nitrogen oxide and the like, and respectively recover and prepare by-product hydrochloric acid through a washing tower and recover and prepare by-product gypsum through a dry-method deacidification tower.
Except that hydrochloric acid and gypsum are recycled, the treatment device and the treatment method can greatly reduce the treatment load of a subsequent dry method and a subsequent wet method of the flue gas, reduce the using amount of a dry deacidification agent and a wet deacidification agent, reduce the ash amount of a dry deacidification tower and the discharge capacity of the wet method, obviously reduce the treatment cost of hazardous waste incineration, and have great economic benefits. The treatment method is simple and clear, environment-friendly and greatly improves the treatment effect of the existing hazardous waste incineration flue gas.
Drawings
The following drawings of the invention are included to provide a further understanding of the invention. There are shown in the drawings, embodiments and descriptions thereof, which are used to explain the principles and apparatus of the invention. In the drawings, there is shown in the drawings,
FIG. 1 is a schematic structural diagram of a hazardous waste incineration flue gas treatment device according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of the hazardous waste incineration flue gas treatment method according to an embodiment of the present invention;
fig. 3 is a schematic block diagram of the hazardous waste incineration flue gas treatment method in one embodiment of the present invention.
Drawing symbol
1. Filter
2. Quench tower
3. Smoke heat exchanger
4. Washing tower
5. Collecting tank
6. Collecting tank
7. Centrifugal pump
8. Nozzle with a nozzle body
9. Packing layer
10. PH detection equipment
11. Temperature detection device
12. Industrial water interface
13. Dry deacidification tower
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.
It is to be understood that the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity. Like reference numerals refer to like elements throughout.
It will be understood that, although the terms first, second, third, etc. may be used to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the present invention.
Spatial relational terms such as "under," "below," "under," "above," "over," and the like may be used herein for convenience in describing the relationship of one element or feature to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. As used herein, the term "and/or" includes any and all combinations of the associated listed items.
Embodiments of the invention are described herein with reference to cross-sectional illustrations that are schematic illustrations of idealized embodiments (and intermediate structures) of the invention. As such, variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, are to be expected. Thus, embodiments of the invention should not be limited to the particular shapes of regions illustrated herein but are to include deviations in shapes that result, for example, from manufacturing. Thus, the regions illustrated in the figures are schematic in nature and their shapes are not intended to illustrate the actual shape of a region of a device and are not intended to limit the scope of the present invention.
The existing method for treating hazardous waste incineration flue gas comprises the following steps: cooling the flue gas by a quenching tower to avoid the regeneration of dioxin; then the flue gas enters a dry reactor to react with lime to remove most of acid gas, then the flue gas enters a bag-type dust remover to remove smoke dust and particulate matters, and then the flue gas enters a wet scrubber to further remove the acid gas.
The further processing method further comprises: the flue gas from the waste heat boiler enters a quench tower, and is cooled by alkaline liquid, so that part of acid gas is removed; then the flue gas is moderated by a sprayer and lime slurry and enters a composite dust remover, the front end of the composite dust remover is used for electric dust removal, the rear end of the composite dust remover is used for bag dust removal, and activated carbon powder is sprayed into the bag dust remover to adsorb dioxin in the flue gas; and further removing acid gas and particulate matters from the flue gas discharged from the dust remover through a wet-method deacidification tower. The treatment device is provided with a first flue gas heat exchanger, a second flue gas heat exchanger and an air burner, high-temperature gas heated by the air burner exchanges heat, and an SCR denitration reactor is arranged behind the dust remover to remove nitrogen oxides in the flue gas.
The method has the disadvantages that the method only focuses on the standard treatment of the flue gas, does not consider the comprehensive recycling value of the flue gas, and endangers the acid gas, HCl and SO in the waste flue gas2Are potentially available resources. With the market competition of the storage hazardous waste becoming more and more intense, the cost of incineration treatment of the hazardous waste needs to be further reduced, if HCl and SO can be used2As an effective resource, the method not only can obtain additional value, but also can avoid the defects that a large amount of dry tower ash generated by the traditional method in the flue gas treatment process and mixed salt generated by evaporation of wet washing wastewater are difficult to recycle and the landfill treatment cost is high.
In order to realize the purpose, this application provides danger is useless burns flue gas processing apparatus, the device includes:
the filter is used for removing smoke dust in the smoke;
the smoke heat exchanger is communicated with the filter and used for receiving the smoke discharged by the filter and cooling the smoke;
the quenching tower is communicated with the flue gas heat exchanger and is used for receiving the flue gas discharged by the flue gas heat exchanger and cooling the flue gas;
the bottom of the washing tower is communicated with the quenching tower and is used for receiving the flue gas discharged by the quenching tower, absorbing HCl gas in the flue gas and collecting HCl solution obtained after the HCl gas is absorbed;
the dry-method deacidification tower is communicated with the flue gas heat exchange, the flue gas heat exchanger is communicated with the top of the washing tower, the flue gas heat exchanger is used for receiving the flue gas discharged from the top of the washing tower, heating the flue gas and transmitting the heated flue gas to the dry-method deacidification tower, and the dry-method deacidification tower is used for absorbing oxysulfide in the heated flue gas and simultaneously obtaining sulfate solid.
The treatment device and the method utilize hydrogen chloride gas in flue gas after high-risk waste incineration to be very soluble in water, separate the hydrogen chloride gas from sulfur dioxide, nitrogen oxide and the like, and respectively recover and prepare by-product hydrochloric acid through a washing tower and recover and prepare by-product gypsum through a dry-method deacidification tower. Except that hydrochloric acid and gypsum are recycled, the treatment device and the treatment method can greatly reduce the treatment load of a subsequent dry method and a subsequent wet method of the flue gas, reduce the using amount of a dry deacidification agent and a wet deacidification agent, reduce the ash amount of a dry deacidification tower and the discharge capacity of the wet method, obviously reduce the treatment cost of hazardous waste incineration, and have great economic benefits. The treatment method is simple and clear, environment-friendly and greatly improves the treatment effect of the existing hazardous waste incineration flue gas.
The hazardous waste incineration flue gas treatment device is described in detail with reference to the attached drawing 1. Fig. 1 is a schematic structural diagram of the hazardous waste incineration flue gas treatment device in one embodiment of the invention.
As shown in figure 1, the hazardous waste incineration flue gas treatment device comprises: the system comprises a filter 1, a quench tower 2, a flue gas heat exchanger 3, a washing tower 4, a collecting tank 5 and a collecting tank 6, a centrifugal pump 7, a nozzle 8 packing layer 9, a pH detection device 10, a temperature detection device 11, an industrial water interface 12 and a dry-method deacidification tower 13.
The hazardous waste incineration flue gas treatment device is explained in detail below, wherein the filter 1 is a ceramic fiber filter for removing smoke and other solid particles in the flue gas.
Wherein, the discharged flue gas firstly passes through a ceramic fiber filter, the high-temperature flue gas firstly exchanges heat with the flue gas passing through a washing tower 4 through a flue gas heat exchanger 3 before entering a quenching tower 2, and the flue gas after quenching treatment enters the middle part of the washing tower 4 from the lower part of the quenching tower 2.
The washing tower 4 is an HCl washing tower, a collecting tank 5 is arranged below the HCl washing tower, the collecting tank 5 is a hydrochloric acid collecting tank, and the hydrochloric acid collecting tank is connected with a collecting tank 6 (for example, a hydrochloric acid collecting tank) through a pipeline. The pipeline is provided with a centrifugal pump 7, the centrifugal pump 7 controls the hydrochloric acid solution in the hydrochloric acid collecting tank to be sprayed back to the HCl washing tower through a nozzle 8 through a three-way pipeline and a valve on the pipeline, or the hydrochloric acid reaching a proper concentration is discharged to the hydrochloric acid collecting tank 6, and a byproduct hydrochloric acid is generated.
Further, a packing layer 9 is arranged in the middle of the HCl washing tower and used for enabling the flue gas to be in contact with the hydrochloric acid solution sprayed by the touch nozzle on the packing layer so as to absorb HCl gas in the flue gas. Specifically, the flue gas contacts with the hydrochloric acid solution or industrial water sprayed out from the collision nozzle 8 from bottom to top under the packing layer 9, and HCl gas in the flue gas is absorbed and removed.
Further, the washing tower further comprises a pH detection device 10 which is arranged in the collecting tank and used for detecting the pH value of the HCl solution, and the pH value of the solution in the hydrochloric acid collecting tank 5 is monitored and fed back through a pH detection point in the packing layer 9 so as to control whether the HCl solution or the industrial water is sprayed into the HCl washing tower 4.
In an embodiment of the present application, the concentration of hydrochloric acid in the hydrochloric acid collecting tank is controlled through the pH detection device 10, the centrifugal pump 7, the industrial water interface 12 and the related control valve, so as to prepare by-product hydrochloric acid with different concentrations.
Specifically, in an embodiment of the application, the acidity of the hydrochloric acid liquid in the hydrochloric acid collecting tank is detected at a pH detection point, the centrifugal pump 7 and a valve on a three-way pipeline where the centrifugal pump is located are controlled to be opened by a feedback signal, and when the acidity meets a set requirement for by-product hydrochloric acid, the hydrochloric acid solution enters the hydrochloric acid collecting tank 6 to obtain the by-product hydrochloric acid; and when the acidity does not meet the requirement, the hydrochloric acid solution is sprayed back to the washing tower to continuously absorb HCl.
The dry-method deacidification tower is communicated with the flue gas in a heat exchange manner, the flue gas heat exchanger is communicated with the top of the washing tower, the flue gas heat exchanger is used for receiving the flue gas discharged from the top of the washing tower, heating the flue gas, and transmitting the heated flue gas to the dry-method deacidification tower, and the dry-method deacidification tower is used for absorbing oxysulfide in the heated flue gas and simultaneously obtaining sulfate solid.
Specifically, in an embodiment of the present application, the filler layer 9 detects the temperature of the filler layer and feeds back a signal through the temperature detection device 11, and the temperature of the filler layer 9 is controlled by controlling the flow rate of the nozzle 8, SO that the SO dissolved in the liquid is dissolved in the liquid2Gas can be volatilized from the solution, so that the purity of the hydrochloric acid solution washed is ensured. The flue gas which is washed to remove HCl is heated by the flue gas heat exchanger 3 and enters the dry-method deacidification tower 13, the flue gas reacts with the lime slurry in the dry-method deacidification tower 13, and the generated byproduct gypsum is collected from the lower part of the dry-method deacidification tower 13. And the flue gas from the dry deacidification tower 13 is subjected to subsequent bag-type dust removal and wet deacidification to meet the emission standard and then discharged through a chimney.
In one embodiment of the present application, a temperature detecting point is disposed at the lower part of the packing layer 9, and the temperature gradient forming the upper part and the lower part in the packing layer is controlled by controlling the flow rate in the nozzle 8, SO that the dissolved SO at the upper part of the packing layer 92Volatilizes out in the lower part of the packing layer 9, reduces SO in the hydrochloric acid solution falling into the hydrochloric acid collecting tank 52The dissolving amount of the gypsum can effectively reduce the impurity content in the byproduct hydrochloric acid and the byproduct gypsum。
In an embodiment of the present application, the flue gas heat exchange device includes a first inlet, a second inlet, a first outlet, and a second outlet; the first inlet is communicated with a flue gas outlet of the filter, the second inlet is communicated with a flue gas outlet of the washing tower, the flue gas heat exchange device exchanges heat between the flue gas discharged by the filter and the flue gas discharged by the top of the washing tower, the first outlet is communicated with a flue gas inlet of the top of the quenching tower, and the second outlet is communicated with a flue gas inlet of the top of the dry deacidification tower. The flue gas from which the smoke dust is filtered by the ceramic fiber filter is used for heating the flue gas from the HCl washing tower; in the flue gas heat exchanger 3, two flue gases exchange heat, and the heated flue gas can increase the reaction rate of subsequent dry treatment and avoid dew point corrosion of a bag-type dust remover.
In an embodiment of the present application, the temperature of the flue gas entering the flue gas heat exchanger 3 is not lower than 650 degrees centigrade to ensure the flue gas passing through the heat exchanger.
In an embodiment of the application, in a quenching temperature reduction interval in a quenching tower, the temperature of flue gas after heat exchange is not lower than 180 ℃ so as to increase the reaction rate of subsequent dry treatment and avoid dew point corrosion of a subsequent bag-type dust remover.
In the conventional hazardous waste flue gas treatment process flow of a quench tower, dry deacidification, cloth bag dust removal and wet deacidification, a hydrochloric acid washing and separating device is added behind the quench tower, and hydrogen chloride in the quenched flue gas is recycled and prepared into byproduct hydrochloric acid in a water washing mode. The flue gas after HCl removal is treated by a dry method, and the byproduct gypsum can be recovered and prepared, thereby realizing the recovery of HCl and SO from the flue gas2The aim of preparing by-product hydrochloric acid and gypsum can be achieved, and HCl gas in hazardous waste can be separated to prepare by-product hydrochloric acid and SO while standard treatment of flue gas is achieved2The by-product gypsum is prepared by the gases, the production amount of dry ash and mixed salt is greatly reduced, two by-products can be prepared, and the environmental protection and economic benefits are very obvious.
As shown in figure 3, the working principle of the hazardous waste incineration flue gas treatment device is as followsThe process is as follows: the flue gas from the waste heat boiler is firstly filtered by a ceramic fiber filter to remove smoke dust in the flue gas, the temperature of the filtered flue gas is kept at 650 ℃, and the flue gas can heat the flue gas passing through a quench tower and an HCl washing tower through a flue gas heat exchanger; the quench tower can avoid the regeneration of dioxin, and the flue gas after passing through the quench tower passes through the HCl washing tower to remove HCl in the flue gas and prepare by-product hydrochloric acid. The flue gas passing through the HCl washing tower is heated to 180 ℃ through a flue gas heat exchanger and enters a dry-method deacidification tower, and SO in the flue gas2And reacting with lime slurry to prepare byproduct gypsum, and then enabling the flue gas to enter a subsequent flue gas treatment process, including cloth bag dust removal and further wet deacidification, so as to ensure that the flue gas reaches the standard and is discharged.
The application has the advantages that:
1. the recycling of the flue gas is realized. In the existing dangerous waste flue gas treatment process, HCl and SO in flue gas are ignored2The invention separately treats HCl and SO in the flue gas2The gas is used for preparing hydrochloric acid as a byproduct and gypsum as a byproduct respectively, so that waste is changed into valuable, and the economic benefit is obvious.
2. Because most of the acid gas in the flue gas is recycled, the invention avoids the removal of the acid gas in the traditional flue gas treatment process, the generation of a large amount of ash (containing chloride and sulfate) generated by dry deacidification and inorganic mixed salt wastewater generated in the wet deacidification process, and has obvious environmental protection benefit.
3. The invention adds the dedusting step of the ceramic fiber filter in the high temperature section (650 ℃) before the flue gas enters the quench tower, can effectively reduce the impurity content in the by-product hydrochloric acid and the by-product gypsum, and the flue gas waste heat after high temperature dedusting can be used for heating the flue gas after the hydrogen chloride gas is removed by washing, thereby effectively utilizing the energy of the flue gas and achieving the effect of energy saving.
In addition, this application still provides a danger waste incineration flue gas processing method, as shown in fig. 2, the method includes:
step S310: removing smoke dust in the smoke through a filter;
step S320: the flue gas discharged by the filter is transmitted to a flue gas heat exchanger for cooling;
step S330: the flue gas discharged by the flue gas heat exchanger is transmitted to a quenching tower to be cooled;
step S340: the flue gas discharged by the quenching tower is transmitted to a washing tower to absorb HCl gas in the flue gas and collect HCl solution obtained after absorbing HCl gas;
step S350: the flue gas discharged by the washing tower is transmitted to the flue gas heat exchanger to exchange heat with the flue gas transmitted to the flue gas heat exchanger from the filter, so that the flue gas with the increased temperature is obtained;
step S360: and conveying the flue gas with the increased temperature to a dry-method deacidification tower to absorb sulfur oxides in the flue gas with the increased temperature and obtain sulfate solids.
In the treatment method, the flue gas from the waste heat boiler firstly passes through the ceramic fiber filter 1, the high-temperature flue gas firstly exchanges heat with the flue gas passing through the HCl washing tower 4 through the flue gas heat exchanger 3 before entering the quenching tower 2, and the flue gas after quenching treatment enters the middle part of the HCl washing tower 4 from the lower part of the quenching tower 2. A hydrochloric acid collecting tank 5 is arranged below the HCl washing tower 4 and is connected with a hydrochloric acid collecting tank 6 through a pipeline. The centrifugal pump 7 pumps the low-concentration hydrochloric acid in the hydrochloric acid collecting tank to a nozzle 8 in the washing tower through a valve on a pipeline, and the low-concentration hydrochloric acid or industrial water sprayed out of the nozzle 8 is in full contact with the flue gas in a packing layer 9 below and absorbs hydrogen chloride gas in the flue gas. The flue gas after being washed and HCl removed enters a dry-method deacidification tower 13 to react with the sprayed lime slurry to produce a byproduct gypsum through the temperature rise of a flue gas heat exchanger 3. And (4) performing cloth bag dust removal and wet deacidification on the flue gas subjected to the dry deacidification to reach the discharge standard.
The treatment method is based on the hazardous waste incineration flue gas treatment device in the application, and the related working modes and principles in the hazardous waste incineration flue gas treatment device can be introduced into the method, so that the details are not repeated.
The invention provides a hazardous waste flue gas treatment device and method, which are used for recovering HCl and SO from flue gas2The hydrochloric acid and the gypsum which are by-products are prepared, and when the standard treatment of the flue gas is realized,separating HCl gas in hazardous waste to prepare by-products of hydrochloric acid and SO2The by-product gypsum is prepared by the gases, the generation amount of dry ash and mixed salt is greatly reduced, two by-products can be prepared, and the environmental protection and economic benefits are very obvious.
Example one
After the heat exchange of the flue gas after the hazardous waste is fully combusted in the waste heat boiler, the temperature of the flue gas discharged from the waste heat boiler is 650 ℃.
The filtering efficiency of the smoke dust in the smoke is more than 99 percent after passing through the ceramic fiber filter 1; the smoke after the smoke dust filtration exchanges heat through the smoke heat exchanger 3, and the temperature is reduced to 500 ℃; then the flue gas enters a quench tower 2 from top to bottom, and rapidly and directly exchanges heat with water sprayed into the quench tower, the water is atomized to form water mist smaller than 50 microns, the water is rapidly vaporized and evaporated, the temperature of the flue gas is reduced from 500 ℃ to 200 ℃ within 1s, and the regeneration of dioxin is prevented.
The flue gas after rapid cooling enters the scrubbing tower from the middle lower part of the HCl scrubbing tower 4, the flue gas passes through the packing layer 9 from bottom to top, the packing adopts the Bohr ring form, the absorption liquid sprayed out by the nozzle 8 is atomized, and the liquid drops absorb HCl, HF and a small amount of SO in the flue gas in the falling process and the process of fully contacting with the packing2A gas. The temperature detection point is positioned at the middle lower part of the packing layer, the temperature of the middle lower part of the packing layer is measured, the temperature feedback is utilized, the flow of the nozzle 8 is controlled, the temperature of the lower part of the packing layer is kept at about 90 ℃, SO that in the packing layer, a temperature gradient with the upper part and the lower part being high is formed, when the solution passes through the lower part of the packing layer, because the temperature rises, the dissolved SO in the solution is dissolved in the solution2The gas can be partially volatilized to reduce the contents of sulfurous acid and sulfuric acid in the hydrochloric acid solution in the hydrochloric acid collecting tank 5 at the lower part of the scrubbing tower. According to the standard of the byproduct hydrochloric acid of HG-T3783-2005, the product quality of the byproduct hydrochloric acid is not influenced by a small amount of absorbed acid gas.
The acidity of the hydrochloric acid liquid in the hydrochloric acid collecting tank is detected by a pH detection point, the centrifugal pump 7 and a valve on a three-way pipeline where the centrifugal pump is located are controlled to be opened by a feedback signal, and when the acidity meets the requirement of setting the byproduct hydrochloric acid, the hydrochloric acid solution enters a hydrochloric acid collecting tank 6 to obtain the byproduct hydrochloric acid; and when the acidity does not meet the requirement, the hydrochloric acid solution is sprayed back to the washing tower to continuously absorb HCl.
The temperature of the flue gas discharged from the upper part of the HCl washing tower is lower, the flue gas is heated to 180 ℃ through heat exchange with the hot flue gas before entering the quench tower, the heated flue gas enters the dry reaction tower 13 and reacts with the sprayed lime slurry, and the byproduct gypsum is obtained at the lower outlet of the dry deacidification tower.
The flue gas after the treatment steps is subjected to cloth bag dust removal and a wet washing tower to remove particulate matters and acid gas in the flue gas, and finally the flue gas is discharged through a chimney after reaching the standard.
According to the method, hydrogen chloride gas in flue gas generated after high-risk waste incineration is easily dissolved in water and separated from sulfur dioxide, nitrogen oxide and the like, the hydrochloric acid byproduct is prepared by recycling through a washing tower, and the gypsum byproduct is prepared by recycling through a dry-method deacidification tower.
According to the method, hydrochloric acid and gypsum are recycled, and after the hydrogen chloride gas is removed from the flue gas, the treatment load of a subsequent dry method and a subsequent wet method of the flue gas can be greatly reduced, the using amounts of a dry deacidification agent and a wet deacidification agent are reduced, the ash amount of a dry deacidification tower and the discharge capacity of the wet method are reduced, the treatment cost of hazardous waste incineration can be obviously reduced, and great economic benefits are achieved. The treatment method is simple and clear, environment-friendly and greatly improves the treatment effect of the existing hazardous waste incineration flue gas.
Although the illustrative embodiments have been described herein with reference to the accompanying drawings, it is to be understood that the foregoing illustrative embodiments are merely exemplary and are not intended to limit the scope of the invention thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention. All such changes and modifications are intended to be included within the scope of the present invention as set forth in the appended claims.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the units is only one logical functional division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another device, or some features may be omitted, or not executed.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the invention and aiding in the understanding of one or more of the various inventive aspects. However, the method of the present invention should not be construed to reflect the intent: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
It will be understood by those skilled in the art that all of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where such features are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims, any of the claimed embodiments may be used in any combination.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.

Claims (10)

1. The utility model provides a useless incineration flue gas processing apparatus of danger, its characterized in that, the device includes:
the filter is used for removing smoke dust in the smoke;
the smoke heat exchanger is communicated with the filter and used for receiving the smoke discharged by the filter and cooling the smoke;
the quenching tower is communicated with the flue gas heat exchanger and is used for receiving the flue gas discharged by the flue gas heat exchanger and cooling the flue gas;
the bottom of the washing tower is communicated with the quenching tower and is used for receiving the flue gas discharged by the quenching tower, absorbing HCl gas in the flue gas and collecting HCl solution obtained after the HCl gas is absorbed;
the dry-method deacidification tower is communicated with the flue gas heat exchange, the flue gas heat exchanger is communicated with the top of the washing tower, the flue gas heat exchanger is used for receiving the flue gas discharged from the top of the washing tower, heating the flue gas and transmitting the heated flue gas to the dry-method deacidification tower, and the dry-method deacidification tower is used for absorbing oxysulfide in the heated flue gas and simultaneously obtaining sulfate solid.
2. The apparatus of claim 1, wherein the scrubber tower comprises:
the collecting tank is arranged at the bottom of the washing tower and is used for collecting the HCl solution;
the collecting tank is communicated with the collecting tank through a pipeline and is used for receiving the HCl solution collected by the collecting tank;
and the centrifugal pump is arranged on the pipeline and is used for spraying the HCl solution in the collecting tank back to the washing tower through a nozzle.
3. The apparatus of claim 2, wherein the scrub column further comprises:
a flue gas inlet arranged at the bottom of the washing tower, communicated with the flue gas outlet at the bottom of the quenching tower and used for introducing the flue gas at the bottom of the quenching tower into the bottom of the washing tower,
and the packing layer is arranged in the middle of the washing tower and is used for enabling the flue gas to be in contact with the HCl solution sprayed by the nozzles to absorb the HCl gas in the flue gas.
4. The apparatus of claim 3, wherein the scrubber tower further comprises:
the pH detection equipment is arranged in the collecting tank and is used for detecting the pH value of the HCl solution; and/or
And the temperature detection equipment is arranged in the filler layer and is used for detecting the temperature of the filler layer.
5. The device of claim 1, wherein the dry deacidification tower is used for absorbing sulfur dioxide in the heated flue gas and simultaneously obtaining gypsum.
6. The apparatus of claim 1, wherein the flue gas heat exchange device comprises a first inlet, a second inlet, a first outlet, and a second outlet;
the first inlet is communicated with a flue gas outlet of the filter, the second inlet is communicated with a flue gas outlet of the washing tower, the first outlet is communicated with a flue gas inlet at the top of the quenching tower, the second outlet is communicated with a flue gas inlet at the top of the dry deacidification tower, and the flue gas heat exchange device is used for carrying out heat exchange on the flue gas discharged by the filter and the flue gas discharged by the top of the washing tower.
7. A method for treating hazardous waste incineration flue gas is characterized by comprising the following steps:
removing smoke dust in the smoke through a filter;
the flue gas discharged by the filter is transmitted to a flue gas heat exchanger for cooling;
the flue gas discharged by the flue gas heat exchanger is transmitted to a quenching tower to be cooled;
the flue gas discharged by the quenching tower is transmitted to a washing tower to absorb HCl gas in the flue gas and collect HCl solution obtained after absorbing HCl gas;
the flue gas discharged by the washing tower is transmitted to the flue gas heat exchanger to exchange heat with the flue gas transmitted to the flue gas heat exchanger from the filter, so that the flue gas with the increased temperature is obtained;
and conveying the flue gas with the increased temperature to a dry-method deacidification tower to absorb sulfur oxides in the flue gas with the increased temperature and obtain sulfate solids.
8. The method of claim 7, wherein the method comprises:
and measuring the temperature of a filler layer in the washing tower, and forming a temperature gradient with a lower upper part and a higher lower part in the filler layer by controlling the flow rate in a nozzle in the washing tower so as to volatilize sulfur oxide dissolved at the upper part of the filler layer in the lower part of the filler layer.
9. The method of claim 7, wherein the temperature of the flue gas passing from the filter to the flue gas heat exchanger is not less than 650 degrees Celsius; and/or
The temperature of the flue gas after the temperature rise is not lower than 180 ℃.
10. The method of claim 7, further comprising:
measuring the pH of the HCl solution;
recovering the HCl solution reaching the preset concentration to obtain hydrochloric acid; and/or
And spraying part of HCl solution which does not reach the concentration back to the washing tower through the nozzle, and continuously absorbing HCl gas.
CN202110594181.5A 2021-05-28 2021-05-28 Hazardous waste incineration flue gas treatment device and method Pending CN113483348A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110594181.5A CN113483348A (en) 2021-05-28 2021-05-28 Hazardous waste incineration flue gas treatment device and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110594181.5A CN113483348A (en) 2021-05-28 2021-05-28 Hazardous waste incineration flue gas treatment device and method

Publications (1)

Publication Number Publication Date
CN113483348A true CN113483348A (en) 2021-10-08

Family

ID=77933536

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110594181.5A Pending CN113483348A (en) 2021-05-28 2021-05-28 Hazardous waste incineration flue gas treatment device and method

Country Status (1)

Country Link
CN (1) CN113483348A (en)

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2007258119A1 (en) * 2006-06-12 2007-12-21 General Electric Technology Gmbh Integrated dry and wet flue gas cleaning process and system
CN101634453A (en) * 2009-08-31 2010-01-27 北京航天动力研究所 Quenching process and quenching device of incineration smoke of waste liquid and waste gas containing chlorine
CN101797472A (en) * 2009-05-04 2010-08-11 上海蓝鸟环境科技发展有限公司 Smoke processing technology
CN102895857A (en) * 2012-10-31 2013-01-30 北京国电清新环保技术股份有限公司 Comprehensive waste incineration flue gas purification system and purification method thereof
CN103768929A (en) * 2014-01-28 2014-05-07 上海黎明资源再利用有限公司 Purification treatment device for flue gas generated in garbage incineration process, and application of purification treatment device
CN106669361A (en) * 2015-11-05 2017-05-17 中国石油化工股份有限公司大连石油化工研究院 Method for production of sulfuric acid by flue gas desulfurization and for sulfuric acid purification and device thereof
CN108176194A (en) * 2018-01-16 2018-06-19 中国石油工程建设有限公司 A kind of processing unit and processing method containing sulphur simple substance and compound tail gas
CN109297037A (en) * 2018-10-30 2019-02-01 大连科林能源工程技术开发有限公司 A kind of environment-friendly type resource utilization system of organic exhaust gas containing chlorine
CN109647164A (en) * 2018-12-28 2019-04-19 浙江天蓝环保技术股份有限公司 A kind of sulfur removal technology and device of zero discharge waste-water
CN111006226A (en) * 2019-12-16 2020-04-14 中国船舶重工集团公司第七一一研究所 Incineration treatment system and incineration treatment method for chlorine-containing waste gas and waste liquid
CN212188526U (en) * 2019-12-24 2020-12-22 惠州Tcl环境科技有限公司 Flue gas treatment system after sludge treatment
CN112460604A (en) * 2020-11-26 2021-03-09 中广核工程有限公司 Hazardous waste incineration flue gas treatment system and hazardous waste incineration flue gas treatment method

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2007258119A1 (en) * 2006-06-12 2007-12-21 General Electric Technology Gmbh Integrated dry and wet flue gas cleaning process and system
CN101797472A (en) * 2009-05-04 2010-08-11 上海蓝鸟环境科技发展有限公司 Smoke processing technology
CN101634453A (en) * 2009-08-31 2010-01-27 北京航天动力研究所 Quenching process and quenching device of incineration smoke of waste liquid and waste gas containing chlorine
CN102895857A (en) * 2012-10-31 2013-01-30 北京国电清新环保技术股份有限公司 Comprehensive waste incineration flue gas purification system and purification method thereof
CN103768929A (en) * 2014-01-28 2014-05-07 上海黎明资源再利用有限公司 Purification treatment device for flue gas generated in garbage incineration process, and application of purification treatment device
CN106669361A (en) * 2015-11-05 2017-05-17 中国石油化工股份有限公司大连石油化工研究院 Method for production of sulfuric acid by flue gas desulfurization and for sulfuric acid purification and device thereof
CN108176194A (en) * 2018-01-16 2018-06-19 中国石油工程建设有限公司 A kind of processing unit and processing method containing sulphur simple substance and compound tail gas
CN109297037A (en) * 2018-10-30 2019-02-01 大连科林能源工程技术开发有限公司 A kind of environment-friendly type resource utilization system of organic exhaust gas containing chlorine
CN109647164A (en) * 2018-12-28 2019-04-19 浙江天蓝环保技术股份有限公司 A kind of sulfur removal technology and device of zero discharge waste-water
CN111006226A (en) * 2019-12-16 2020-04-14 中国船舶重工集团公司第七一一研究所 Incineration treatment system and incineration treatment method for chlorine-containing waste gas and waste liquid
CN212188526U (en) * 2019-12-24 2020-12-22 惠州Tcl环境科技有限公司 Flue gas treatment system after sludge treatment
CN112460604A (en) * 2020-11-26 2021-03-09 中广核工程有限公司 Hazardous waste incineration flue gas treatment system and hazardous waste incineration flue gas treatment method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
张蕾: "《烟气脱硫脱硝技术及催化剂的研究进展》", 31 August 2016, 中国矿业大学出版社, pages: 14 - 23 *

Similar Documents

Publication Publication Date Title
CN108480360B (en) Method for recycling fly ash resources and discharging tail gas in ultra-clean mode by melting method of rotary kiln
CN110280125B (en) Containing arsenic and SO3Dry purification method of smelting flue gas
CN105080310B (en) Exhaust gas purifying system for waste incineration and overall solution technique
CN107213785A (en) A kind of method and device of FCC tail gas by ammonia method denitration desulfurization and dedusting
CN102974181A (en) Flue gas dedusting and desulfurization and denitrification craft and special device thereof
CN105862053B (en) Hydrochloric acid exhausted liquid reclaiming process and system
WO2008052465A1 (en) A sintered flue gas wet desulfurizing and dedusting process
CN104383801B (en) Method and system for treating electronic scrap smoke
CN112742201A (en) Method and system for purifying waste incineration flue gas
CN201701866U (en) Garbage incineration flue gas purification system
CN113776061A (en) Hazardous waste incineration flue gas purification and waste heat recovery device and method thereof
CN113883543A (en) High-chlorine-content hazardous waste incineration flue gas purification and hydrochloric acid recycling system and method
CN108892179B (en) Method for green treatment of titanium tetrachloride dust collecting slag
CN215523303U (en) Plasma hazardous waste treatment system
CN204973575U (en) Garbage incineration flue gas purification system
CN212025143U (en) Contain Cu industrial sludge danger useless resourceful treatment system
CN112499589A (en) Acid regeneration water-to-acid mode acid mist chimney red smoke emission treatment method
CN210772220U (en) Contain salt waste water high temperature melting and burn burning furnace
CN218155574U (en) Acidizing calcination flue gas processing system
CN113483348A (en) Hazardous waste incineration flue gas treatment device and method
CN215863435U (en) Industrial waste's processing apparatus
CN209161488U (en) A kind of system of sulfur gas reduction Waste Sulfuric Acid sulfur dioxide liquid and sulfuric acid
CN212523640U (en) Metal sludge sintering flue gas treatment system
CN216953078U (en) Flue gas treatment system for waste incineration
CN116422311A (en) Thermal regeneration device and regeneration method for activated carbon

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination