CN111059549A - Hazardous waste incineration treatment system and process thereof - Google Patents
Hazardous waste incineration treatment system and process thereof Download PDFInfo
- Publication number
- CN111059549A CN111059549A CN201911305275.5A CN201911305275A CN111059549A CN 111059549 A CN111059549 A CN 111059549A CN 201911305275 A CN201911305275 A CN 201911305275A CN 111059549 A CN111059549 A CN 111059549A
- Authority
- CN
- China
- Prior art keywords
- flue gas
- waste
- liquid
- hazardous waste
- solid
- 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
Links
Images
Classifications
-
- 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
-
- 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
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/027—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
-
- 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
- F23G5/16—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion in a separate combustion chamber
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Incineration Of Waste (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention relates to a hazardous waste incineration treatment system and a process thereof, which comprise a hazardous waste storage system, an incineration system and a tail gas purification treatment system, wherein the hazardous waste storage system comprises a solid hazardous waste storage area and a liquid hazardous waste storage area, the incineration system comprises a solid hazardous waste incineration system and a liquid hazardous waste incineration system, a matching room for matching solid hazardous waste is arranged between the solid hazardous waste incineration system and the liquid hazardous waste storage area, and the solid hazardous waste incineration system and the liquid hazardous waste incineration system are both communicated with the tail gas purification treatment system, so that smoke generated by the solid hazardous waste incineration system and the liquid hazardous waste incineration system enters the tail gas purification treatment system to be purified and then is discharged up to the standard. The invention realizes the classification incineration treatment of solid hazardous waste and liquid hazardous waste at the same time, and the smoke generated after incineration is purified by the tail gas purification treatment system and then discharged up to the standard, thereby ensuring that the hazardous waste can be stably, uniformly and balancedly combusted, and reducing the consumption of auxiliary fuel.
Description
Technical Field
The invention relates to the technical field of hazardous waste treatment, in particular to a hazardous waste incineration treatment system and a hazardous waste incineration treatment process.
Background
With the rapid development of economy in China, the generation amount of dangerous waste, namely hazardous waste, is increased rapidly. In view of the potential environmental risks and the threat to human health, the danger of waste becomes one of the major environmental problems facing China. The hazardous waste incineration method has the advantages that toxic and harmful organic waste in hazardous waste can be effectively destroyed through incineration, the volume and the quality of the waste are reduced, the final safe disposal of the waste is facilitated, and the hazardous waste reduction and harmless technology is the most rapid and effective technology.
The existing hazardous waste incineration treatment system generally comprises a rotary kiln, a secondary combustion chamber and a tail gas purification treatment system, wherein the treatment process mainly comprises the steps of placing solid, liquid or gaseous hazardous waste in the rotary kiln, reducing combustible smoke under the condition of high temperature and oxygen deficiency by combustible components in the hazardous waste, fully mixing and burning the combustible smoke with excess air in the secondary combustion chamber, and discharging the smoke generated by combustion in the secondary combustion chamber after the smoke is purified by the tail gas purification treatment system.
The above prior art solutions have the following drawbacks: only possess single processing system, can only burn the useless danger of single form and handle, can not be to the useless simultaneous classification of danger of two kinds of forms, the treatment effeciency is lower to do not carry out the compatibility before burning solid-state danger useless, hardly guarantee that the dangerous useless can be stable, even, balanced burning, increased the quantity of auxiliary fuel.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a hazardous waste incineration treatment system, which realizes the simultaneous classified incineration treatment of solid hazardous waste and liquid hazardous waste, ensures that the smoke generated after incineration is purified by a tail gas purification treatment system and then is discharged up to the standard, can ensure the stable, uniform and balanced combustion of the hazardous waste, and reduces the consumption of auxiliary fuel. The invention also aims to provide a process utilizing the hazardous waste incineration treatment system, which realizes the classification incineration treatment and tail gas purification and discharge of solid hazardous waste and liquid hazardous waste simultaneously, and improves the hazardous waste incineration treatment efficiency.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides a useless incineration disposal system of danger, includes that the useless storage system of danger, burns system and tail gas purification processing system, the useless storage system of danger includes the useless storage area of solid-state danger and the useless storage area of liquid danger, burn the system and include and be used for burning the useless solid-state danger system of burning of solid-state danger with the useless storage area intercommunication of solid-state danger and be used for burning the useless liquid danger system of burning that liquid danger is useless with the useless storage area intercommunication of liquid danger, the useless system of burning of solid-state danger is provided with between the compatibility that is used for carrying out the compatibility to solid-state danger between useless storage area and the useless storage area of liquid danger, the useless system of burning of solid-state danger and the useless system of burning of liquid danger all communicate with tail gas purification processing system, make the useless system of burning of solid-state danger and the useless flue gas.
By adopting the technical scheme, two sets of independent incineration systems are arranged, so that the solid hazardous waste and the liquid hazardous waste are simultaneously classified and incinerated, and the smoke generated after incineration is purified by the tail gas purification treatment system and then is discharged up to the standard; through setting up between the compatibility, when making solid-state danger useless the burning after the compatibility, not only have stable calorific value, reduced auxiliary fuel's quantity, can control acid pollutant and heavy metal, alkali metal content moreover, guarantee that incineration equipment does not receive corruption and tail gas discharge to reach standard, still can keep the continuation, stability and the homogeneity of burning.
The present invention in a preferred example may be further configured to: the solid-state dangerous waste incineration system comprises a pyrolysis gasifier, a jet combustion furnace, a first secondary combustion chamber and a first waste heat boiler which are sequentially communicated, wherein the feeding end of the pyrolysis gasifier is communicated with the compatibility, a feeding device is arranged between the compatibility and the pyrolysis gasifier, the steam outlet of the first waste heat boiler is communicated with a steam collecting device, and the smoke outlet of the first waste heat boiler is communicated with a tail gas purification treatment system.
By adopting the technical scheme, after the compatibility of the solid hazardous wastes is finished, the solid hazardous wastes are conveyed into the pyrolysis gasification furnace through the feeding device to be pyrolyzed to generate combustible flue gas, the combustible flue gas generated by the pyrolysis gasification furnace enters the jet combustion furnace to be combusted, the flue gas generated by the combustion of the jet combustion furnace enters the first secondary combustion chamber to be secondarily combusted, the flue gas generated by the combustion of the first secondary combustion chamber enters the first waste heat boiler to be subjected to heat exchange, saturated steam generated by the heat exchange in the first waste heat boiler enters the steam collecting device, the flue gas generated by the heat exchange in the first waste heat boiler enters the tail gas purification treatment system to be purified and then to reach the standard to be discharged, the incineration and the purification discharge of the solid hazardous wastes are realized, and meanwhile, through the compatibility link, when the compatible solid hazardous wastes are incinerated, the stable heat value is realized, the consumption of auxiliary fuel is, ensures that the incineration equipment is not corroded and the tail gas reaches the standard and can also keep the continuity, stability and uniformity of incineration.
The present invention in a preferred example may be further configured to: the liquid hazardous waste incineration system comprises a waste liquid combustion furnace, a second combustion chamber II and a waste heat boiler II which are sequentially communicated, wherein the feed end of the waste liquid combustion furnace is communicated with the liquid hazardous waste storage area, the steam outlet of the waste heat boiler II is communicated with a steam collecting device, and the smoke outlet of the waste heat boiler II is communicated with a tail gas purification treatment system.
Through adopting above-mentioned technical scheme, useless entering waste liquid combustion furnace of liquid danger burns, and the flue gas that waste liquid combustion furnace produced gets into two combustion chambers and carries out the postcombustion in two combustion chambers, and the flue gas that produces after two combustion chambers two combustion chamber two combustion gets into exhaust-heat boiler two and carries out the heat exchange, and the saturated steam that the heat exchange produced in the exhaust-heat boiler two gets into steam collection device, and the flue gas after two heat exchanges of exhaust-heat boiler gets into tail gas purification processing system and purifies back discharge to reaching standard, realizes burning and purifying the waste of liquid danger and discharges.
The present invention in a preferred example may be further configured to: and a pipeline for introducing combustible flue gas generated in the pyrolysis gasifier into the waste liquid combustion furnace for combustion supporting is communicated between the pyrolysis gasifier and the waste liquid combustion furnace.
Through adopting above-mentioned technical scheme, make the combustible flue gas that produces in the pyrolysis gasification stove can get into in the waste liquid combustion furnace through the pipeline and carry out combustion-supporting, adopt the useless high temperature flue gas that produces of the useless burning of high calorific value solid-state danger to replace the primary energy for the useless burning that heats of liquid state danger of waste liquid combustion furnace has improved resource utilization, has reduced the quantity of auxiliary fuel simultaneously.
The present invention in a preferred example may be further configured to: a second sampling analysis device and a liquid dangerous waste intermediate tank which are sequentially communicated are arranged between the liquid dangerous waste storage area and the feed end of the waste liquid combustion furnace, a liquid dangerous waste delivery pump is arranged between the second sampling analysis device and the liquid dangerous waste intermediate tank, and an atomizer is arranged at the feed end of the waste liquid combustion furnace.
Through adopting above-mentioned technical scheme, realize carrying out sample analysis to liquid state danger useless, the useless intermediate tank that carries liquid state danger through the useless delivery pump of liquid state danger after the sample analysis, the rethread atomizer spouts carries out the atomizing burning in the waste liquid combustion furnace, has improved combustion effect.
The present invention in a preferred example may be further configured to: the tail gas purification processing system is including flue gas quench tower, semidry process flue gas desulfurization tower, active carbon adsorption device, sack cleaner, flue gas scrubbing tower and the chimney that communicates in proper order, be provided with the flue gas reheater that is used for heating the flue gas between active carbon adsorption device and the sack cleaner, be provided with the draught fan between sack cleaner and the flue gas scrubbing tower.
Through adopting above-mentioned technical scheme, realized carrying out purification treatment to tail gas and then discharge to reach standard, reduced the pollution to the environment.
The present invention in a preferred example may be further configured to: the tail gas purification treatment system further comprises an alkali liquor circulating tank, an alkali liquor outlet of the alkali liquor circulating tank is communicated with the semi-dry flue gas desulfurization tower, and an alkali liquor recycling port of the alkali liquor circulating tank is communicated with the flue gas washing tower.
By adopting the technical scheme, the circulating supply of the alkali liquor is realized, and the desulfurization effect is ensured.
The present invention in a preferred example may be further configured to: a first sampling and analyzing device is arranged between the solid hazardous waste storage area and the compatibility room.
Through adopting above-mentioned technical scheme, realize carrying out sample analysis to solid-state danger useless, provide reference information for the compatibility simultaneously.
The second aim of the invention is realized by the following technical scheme:
a process for utilizing a hazardous waste incineration treatment system comprises the following steps:
s1, respectively storing the collected solid dangerous waste and liquid dangerous waste in a solid dangerous waste storage area and a liquid dangerous waste storage area of a dangerous waste storage system;
s2, respectively sampling and analyzing the solid hazardous waste stored in the solid hazardous waste storage area and the liquid hazardous waste stored in the liquid hazardous waste storage area;
s3, conveying the solid-state hazardous waste subjected to sampling analysis in the S2 to a matching room for matching, after the matching of the solid-state hazardous waste is completed, conveying the solid-state hazardous waste to a pyrolysis gasification furnace through a feeding device for pyrolysis to generate combustible flue gas, feeding the combustible flue gas generated by the pyrolysis gasification furnace into a flame jetting furnace for combustion, feeding the flue gas generated by the combustion of the flame jetting furnace into a first secondary combustion chamber for secondary combustion, and feeding the flue gas generated by the combustion of the first secondary combustion chamber into a first waste heat boiler for heat exchange; conveying the liquid-state hazardous waste sampled and analyzed in the S2 to a liquid-state hazardous waste intermediate tank through a liquid-state hazardous waste conveying pump, conveying the liquid-state hazardous waste intermediate tank to a waste liquid combustion furnace for combustion, feeding combustible flue gas generated in a pyrolysis gasification furnace into the waste liquid combustion furnace through a pipeline for supporting combustion, feeding flue gas generated in the waste liquid combustion furnace into a secondary combustion chamber II for secondary combustion, and feeding flue gas generated after secondary combustion in the secondary combustion chamber II into a waste heat boiler II for heat exchange; saturated steam generated by heat exchange in the first waste heat boiler and the second waste heat boiler enters the steam collecting device, flue gas subjected to heat exchange in the first waste heat boiler and the second waste heat boiler enters the flue gas quench tower to be cooled, the cooled flue gas enters the semi-dry flue gas desulfurization tower to be deacidified, the flue gas subjected to deacidification enters the activated carbon adsorption device to be subjected to adsorption treatment, the flue gas subjected to adsorption treatment is heated by a flue gas reheater and then enters the bag-type dust remover to be subjected to dust removal, the flue gas subjected to dust removal enters the flue gas washing tower through the induced draft fan to be washed, and the washed flue gas is discharged through the chimney.
The present invention in a preferred example may be further configured to: in the step S3, the temperature of the flue gas generated by the first combustion chamber and the second combustion chamber is 1100-1200 ℃, the temperature of the flue gas after heat exchange of the first waste heat boiler and the second waste heat boiler is 500-550 ℃, the temperature of the flue gas after cooling by the flue gas quench tower is 200-550 ℃, and the temperature of the flue gas after heating by the flue gas reheater is 180-200 ℃.
In summary, the invention includes at least one of the following beneficial technical effects:
1. the solid hazardous waste and the liquid hazardous waste are classified and incinerated at the same time, the smoke generated after incineration is purified by the tail gas purification treatment system and then is discharged up to the standard, the hazardous waste can be stably, uniformly and balancedly combusted, and the consumption of auxiliary fuel is reduced;
2. through setting up the pipeline, make the combustible flue gas that produces in the pyrolysis gasification stove can get into in the waste liquid combustion furnace through the pipeline and carry out combustion-supporting, adopt the useless high temperature flue gas that produces of the useless burning of solid-state danger of high calorific value to replace the primary energy for the useless burning that heats of liquid state danger of waste liquid combustion furnace has improved resource utilization, has reduced the quantity of auxiliary fuel simultaneously.
Drawings
Fig. 1 is a schematic structural diagram of the present embodiment.
In the figure, 1, a hazardous waste storage system, 2, an incineration system, 3, a tail gas purification treatment system, 4, a compatibility room, 5, a pyrolysis gasifier, 6, a spray combustion furnace, 7, a first combustion chamber, 8, a first exhaust-heat boiler, 9, a feeding device, 10, a waste liquid combustion furnace, 11, a second combustion chamber, 12, a second exhaust-heat boiler, 13, a pipeline, 14, a second sampling analysis device, 15, a liquid hazardous waste intermediate tank, 16, a flue gas quench tower, 17, a semi-dry flue gas desulfurization tower, 18, an activated carbon adsorption device, 19, a bag-type dust remover, 20, a flue gas washing tower, 21, a chimney, 22, a flue gas reheater, 23, an induced draft fan, 24, a first sampling analysis device, 25 and an alkali liquor circulation pool.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the invention discloses a hazardous waste incineration system, which comprises a hazardous waste storage system 1, an incineration system 2 and a tail gas purification treatment system 3, wherein the hazardous waste storage system 1 comprises a solid hazardous waste storage area and a liquid hazardous waste storage area, the incineration system 2 comprises a solid hazardous waste incineration system communicated with the solid hazardous waste storage area and used for incinerating solid hazardous waste and a liquid hazardous waste incineration system communicated with the liquid hazardous waste storage area and used for incinerating liquid hazardous waste, a matching room 4 used for matching solid hazardous waste is arranged between the solid hazardous waste incineration system and the liquid hazardous waste storage area, and the solid hazardous waste incineration system and the liquid hazardous waste incineration system are both communicated with the tail gas purification treatment system 3, so that smoke generated by the solid hazardous waste incineration system and the liquid hazardous waste incineration system enters the tail gas purification treatment system 3 to be purified and then is discharged up to the standard. The hazardous waste is also weighed before being stored into the hazardous waste storage system 1. By arranging two sets of independent incineration systems, the solid hazardous waste and the liquid hazardous waste are simultaneously classified and incinerated, and the smoke generated after incineration is purified by the tail gas purification treatment system 3 and then is discharged after reaching the standard; through setting up between 4, when making solid-state danger useless the burning after the compatibility, not only have stable calorific value, reduced auxiliary fuel's quantity, can control acid pollutant and heavy metal, alkali metal content moreover, guarantee that incineration equipment does not receive corruption and tail gas discharge to reach standard, still can keep the continuation, stability and the homogeneity of burning. The maximum limit value of the heavy metal content of the incineration solid hazardous waste after compatibility is shown in table 1.
TABLE 1 maximum limit of heavy metal content after compatibility of solid hazardous waste in incineration
| Heavy metal species | Accounts for the proportion of solid hazardous waste in incineration |
| Pb and its compound content | <0.06％ |
| As, Ni and compound contents thereof | <0.16％ |
| Cd and compound content thereof | <0.01％ |
| Cd and compound content thereof | <0.06％ |
| Cr + Cu + Sb + Mn + Pb + V + Zn and compound content thereof | <0.36％ |
Referring to fig. 1, the solid hazardous waste incineration system comprises a pyrolysis gasifier 5, a jet combustion furnace 6, a first secondary combustion chamber 7 and a first waste heat boiler 8 which are sequentially communicated, wherein a feeding end of the pyrolysis gasifier 5 is communicated with a compatibility chamber 4, a feeding device 9 is arranged between the compatibility chamber 4 and the pyrolysis gasifier 5, a steam outlet of the first waste heat boiler 8 is communicated with a steam collecting device, and a flue gas outlet of the first waste heat boiler 8 is communicated with a tail gas purification treatment system 3. In this embodiment, the feeding device 9 is a hopper, and the hopper uniformly drops solid hazardous wastes into the pyrolysis gasifier 5. The steam mainly acts on medical waste cooking, sludge drying and chimney outlet flue gas heating, and the temperature of a first 8 heat exchange interval of the waste heat boiler is changed from 1100 ℃ to 500 ℃. After the compatibility of the solid hazardous wastes is completed, the solid hazardous wastes are conveyed into a pyrolysis gasifier 5 through a feeding device 9 to be pyrolyzed to generate combustible flue gas, the combustible flue gas generated by the pyrolysis gasifier 5 enters a flame spraying furnace 6 to be combusted, the flue gas generated by the combustion of the flame spraying furnace 6 enters a first combustion chamber 7 to be secondarily combusted, the flue gas generated by the combustion of the first combustion chamber 7 enters a first waste heat boiler 8 to be subjected to heat exchange, saturated steam generated by the heat exchange in the first waste heat boiler 8 enters a steam collecting device, the flue gas generated by the heat exchange in the first waste heat boiler 8 enters a tail gas purification treatment system 3 to be purified and then to reach the standard to be discharged, the incineration and the purification discharge of the solid hazardous wastes are realized, and meanwhile, through a compatibility link, when the compatible solid hazardous wastes are incinerated, the stable heat value is realized, the consumption of auxiliary fuel is reduced, and the contents, ensures that the incineration equipment is not corroded and the tail gas reaches the standard and can also keep the continuity, stability and uniformity of incineration.
Referring to fig. 1, the liquid hazardous waste incineration system comprises a waste liquid combustion furnace 10, a second combustion chamber 11 and a second waste heat boiler 12 which are sequentially communicated, wherein a feed end of the waste liquid combustion furnace 10 is communicated with the liquid hazardous waste storage area, a steam outlet of the second waste heat boiler 12 is communicated with a steam collecting device, and a smoke outlet of the second waste heat boiler 12 is communicated with a tail gas purification treatment system 3. Liquid state danger is useless gets into to burn in the waste liquid fires burning furnace 10, and the flue gas that waste liquid fires burning furnace 10 production gets into and carries out the postcombustion in two combustion chambers 11, and the flue gas that two combustion chambers 11 burn back production gets into two exhaust-heat boilers 12 and carries out the heat exchange, and the saturated steam that heat exchange produced gets into steam collection device in two exhaust-heat boilers 12, and the flue gas after two 12 heat exchanges of exhaust-heat boilers gets into tail gas purification processing system 3 and purifies back discharge to reach standard, realizes burning and purifying the waste and discharging liquid state danger.
Referring to fig. 1, a pipeline 13 for introducing combustible flue gas generated in the pyrolysis gasifier 5 into the waste liquid combustion furnace 10 for combustion supporting is communicated between the pyrolysis gasifier 5 and the waste liquid combustion furnace 10. Combustible flue gas generated in the pyrolysis gasification furnace 5 can enter the waste liquid combustion furnace 10 through the pipeline 13 to be combustion-supporting, high-temperature flue gas generated by high-calorific-value solid-state dangerous waste combustion is adopted to replace primary energy, and the waste liquid combustion furnace 10 is heated and combusted in liquid-state dangerous waste, so that the resource utilization rate is improved, and the using amount of auxiliary fuel is reduced.
Referring to fig. 1, a second sampling and analyzing device 14 and a liquid hazardous waste intermediate tank 15 which are sequentially communicated are arranged between the liquid hazardous waste storage area and the feed end of the waste liquid combustion furnace 10, a liquid hazardous waste delivery pump is arranged between the second sampling and analyzing device 14 and the liquid hazardous waste intermediate tank 15, and an atomizer is arranged at the feed end of the waste liquid combustion furnace 10. The realization is useless to liquid state danger and is carried out sample analysis, and liquid state danger after sample analysis is useless through the useless transfer pump of liquid state danger carry liquid state danger middle groove 15 that gives up, and the rethread atomizer spouts to carry out the atomizing burning in the waste liquid fires burning furnace 10, has improved combustion effect.
Referring to fig. 1, the tail gas purification treatment system 3 includes a flue gas quenching tower 16, a semidry flue gas desulfurization tower 17, an activated carbon adsorption device 18, a bag-type dust remover 19, a flue gas washing tower 20 and a chimney 21 which are sequentially communicated, a flue gas reheater 22 for heating flue gas is arranged between the activated carbon adsorption device 18 and the bag-type dust remover 19, and an induced draft fan 23 is arranged between the bag-type dust remover 19 and the flue gas washing tower 20. Specifically, the temperature of the flue gas after heat exchange between the first waste heat boiler 8 and the second waste heat boiler 12 is reduced to 500 ℃, the flue gas after temperature reduction enters a flue gas quenching tower 16 to be quenched by spraying water for 1 second to be cooled to 200 ℃, the flue gas after temperature reduction enters a semi-dry flue gas desulfurization tower 17 to be deacidified by spraying high-concentration alkali liquor to remove most of acid gas, the flue gas after deacidification enters an activated carbon adsorption device 18 and activated carbon or slaked lime blown into the activated carbon adsorption device 18 is subjected to adsorption treatment, the activated carbon adsorption device 18 is used for further removing unreacted acid gas and dioxin possibly generated in an adsorption quenching section, the flue gas after adsorption treatment is heated by a flue gas reheater 22 and then enters a bag-type dust remover 19 to be dedusted, the flue gas after dedusting enters a flue gas washing tower 20 to be washed by an induced draft fan 23 to remove trace dust leaked from the bag-type dust remover 19, the washed flue gas is discharged through a chimney 21, so that the tail gas is purified and then discharged up to the standard, and the pollution to the environment is reduced.
Referring to fig. 1, the tail gas purification treatment system 3 further includes an alkali liquor circulation tank 25, an alkali liquor outlet of the alkali liquor circulation tank 25 is communicated with the semi-dry flue gas desulfurization tower 17, and an alkali liquor recovery port of the alkali liquor circulation tank 25 is communicated with the flue gas washing tower 20. The circulation supply of alkali liquor is realized, and the desulfurization effect is ensured.
Referring to fig. 1, a sampling and analyzing device 24 is arranged between the solid hazardous waste storage area and the compatibility room 4. The solid hazardous waste is sampled and analyzed, and reference information is provided for compatibility.
The invention also discloses a process for utilizing the hazardous waste incineration treatment system, which comprises the following steps:
s1, respectively storing the collected solid dangerous waste and liquid dangerous waste in a solid dangerous waste storage area and a liquid dangerous waste storage area of the dangerous waste storage system 1;
s2, respectively sampling and analyzing the solid hazardous waste stored in the solid hazardous waste storage area and the liquid hazardous waste stored in the liquid hazardous waste storage area;
s3, conveying the solid-state hazardous waste subjected to sampling analysis in the S2 to a matching room 4 for matching, after the matching of the solid-state hazardous waste is completed, conveying the solid-state hazardous waste to a pyrolysis gasifier 5 through a feeding device 9 for pyrolysis to generate combustible flue gas, feeding the combustible flue gas generated by the pyrolysis gasifier 5 into a flame-spraying furnace 6 for combustion, feeding the flue gas generated by the combustion of the flame-spraying furnace 6 into a first secondary combustion chamber 7 for secondary combustion, and feeding the flue gas generated by the combustion of the first secondary combustion chamber 7 into a first waste heat boiler 8 for heat exchange; the liquid hazardous waste sampled and analyzed in the step S2 is conveyed into a liquid hazardous waste intermediate tank 15 through a liquid hazardous waste conveying pump, and then conveyed into a waste liquid combustion furnace 10 through the liquid hazardous waste intermediate tank 15 for combustion, combustible flue gas generated in the pyrolysis gasifier 5 enters the waste liquid combustion furnace 10 through a pipeline 13 for combustion supporting, flue gas generated in the waste liquid combustion furnace 10 enters a secondary combustion chamber II 11 for secondary combustion, and flue gas generated after combustion in the secondary combustion chamber II 11 enters a waste heat boiler II 12 for heat exchange; saturated steam generated by heat exchange in the first waste heat boiler 8 and the second waste heat boiler 12 enters a steam collecting device, flue gas subjected to heat exchange in the first waste heat boiler 8 and the second waste heat boiler 12 enters a flue gas quenching tower 16 to be cooled, the cooled flue gas enters a semi-dry flue gas desulfurization tower 17 to be deacidified, the deacidified flue gas enters an activated carbon adsorption device 18 to be subjected to adsorption treatment, the flue gas subjected to adsorption treatment is heated by a flue gas reheater 22 and then enters a bag-type dust remover 19 to be dedusted, the dedusted flue gas enters a flue gas washing tower 20 through an induced draft fan 23 to be washed, and the washed flue gas is discharged through a chimney 21.
In step S3, the temperatures of the flue gas generated by the first two combustion chambers 7 and the second two combustion chambers 11 are both 1100 ℃ to 1200 ℃, the temperatures of the flue gas after heat exchange by the first waste heat boiler 8 and the second waste heat boiler 12 are both 500 ℃ to 550 ℃, the temperature of the flue gas after being cooled by the flue gas quenching tower 16 is 200 ℃ to 550 ℃, and the temperature of the flue gas after being heated by the flue gas reheater 22 is 180 ℃ to 200 ℃. In this embodiment, the temperatures of the flue gas generated by the first combustion chamber 7 and the second combustion chamber 11 are 1100 ℃, the temperatures of the flue gas after heat exchange by the first exhaust-heat boiler 8 and the second exhaust-heat boiler 12 are 500 ℃, and the temperature of the flue gas after heating by the flue gas reheater 22 is 180 ℃.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (10)
1. The utility model provides a useless incineration disposal system of danger, includes that the useless storage system of danger (1), incineration system (2) and tail gas purification processing system (3), useless storage system of danger (1) includes the useless storage area of solid-state danger and the useless storage area of liquid danger, its characterized in that: burn system (2) include with the useless storage area intercommunication of solid-state danger be used for burning the useless solid-state danger system of burning that solid-state danger was used for and the useless liquid danger system of burning that storage area intercommunication was used for burning liquid state danger was used for with the useless storage area intercommunication of liquid state danger, the useless system of burning of solid-state danger is provided with between the useless storage area of liquid state danger and is used for carrying out the compatibility of compatibility to solid-state danger (4), the useless system of burning of solid-state danger and the useless system of burning of liquid state danger all communicate with tail gas purification processing system (3), make the useless system of burning of solid-state danger and the useless flue gas that the system of burning of liquid state danger produced get into tail gas purification.
2. The hazardous waste incineration disposal system of claim 1, wherein: the useless system of burning of solid-state danger is including pyrolysis gasifier (5), spout a stove (6), two combustion chambers (7) and exhaust-heat boiler (8) that communicate in proper order, feed end and the compatibility of pyrolysis gasifier (5) between (4) intercommunication, and be provided with material feeding unit (9) between compatibility between (4) and pyrolysis gasifier (5), the steam outlet and the steam collection device intercommunication of exhaust-heat boiler (8), the exhanst gas outlet and tail gas clean-up processing system (3) intercommunication of exhaust-heat boiler (8).
3. The hazardous waste incineration disposal system of claim 2, wherein: the liquid hazardous waste incineration system comprises a waste liquid combustion furnace (10), a second combustion chamber II (11) and a waste heat boiler II (12) which are sequentially communicated, wherein the feed end of the waste liquid combustion furnace (10) is communicated with the liquid hazardous waste storage area, the steam outlet of the waste heat boiler II (12) is communicated with a steam collecting device, and the smoke outlet of the waste heat boiler II (12) is communicated with a tail gas purification treatment system (3).
4. The hazardous waste incineration disposal system of claim 3, wherein: and a pipeline (13) for introducing combustible flue gas generated in the pyrolysis gasification furnace (5) into the waste liquid combustion furnace (10) for supporting combustion is communicated between the pyrolysis gasification furnace (5) and the waste liquid combustion furnace (10).
5. The hazardous waste incineration disposal system of claim 3, wherein: a second sampling analysis device (14) and a liquid dangerous waste intermediate tank (15) which are sequentially communicated are arranged between the liquid dangerous waste storage area and the feed end of the waste liquid combustion furnace (10), a liquid dangerous waste conveying pump is arranged between the second sampling analysis device (14) and the liquid dangerous waste intermediate tank (15), and an atomizer is arranged at the feed end of the waste liquid combustion furnace (10).
6. The hazardous waste incineration disposal system of claim 3, wherein: tail gas clean-up processing system (3) are including flue gas quench tower (16), semidry flue gas desulfurization tower (17), activated carbon adsorption device (18), sack cleaner (19), flue gas scrubbing tower (20) and chimney (21) that communicate in proper order, be provided with between activated carbon adsorption device (18) and sack cleaner (19) and be used for flue gas reheater (22) to the flue gas heating, be provided with draught fan (23) between sack cleaner (19) and flue gas scrubbing tower (20).
7. The hazardous waste incineration disposal system of claim 6, wherein: the tail gas purification treatment system (3) further comprises an alkali liquor circulating tank (25), an alkali liquor outlet of the alkali liquor circulating tank (25) is communicated with the semi-dry flue gas desulfurization tower (17), and an alkali liquor recycling port of the alkali liquor circulating tank (25) is communicated with the flue gas washing tower (20).
8. The hazardous waste incineration disposal system of claim 1, wherein: a first sampling and analyzing device (24) is arranged between the solid hazardous waste storage area and the compatibility room (4).
9. A process for utilizing the hazardous waste incineration disposal system of any one of claims 1-8, comprising the steps of:
s1, respectively storing the collected solid dangerous waste and liquid dangerous waste in a solid dangerous waste storage area and a liquid dangerous waste storage area of the dangerous waste storage system (1);
s2, respectively sampling and analyzing the solid hazardous waste stored in the solid hazardous waste storage area and the liquid hazardous waste stored in the liquid hazardous waste storage area;
s3, conveying the solid hazardous waste subjected to sampling analysis in the S2 to a matching room (4) for matching, after the matching of the solid hazardous waste is completed, conveying the solid hazardous waste to a pyrolysis gasifier (5) through a feeding device (9) for pyrolysis to generate combustible flue gas, feeding the combustible flue gas generated by the pyrolysis gasifier (5) into a flame-jet furnace (6) for combustion, feeding the flue gas generated by the combustion of the flame-jet furnace (6) into a first secondary combustion chamber (7) for secondary combustion, and feeding the flue gas generated by the combustion of the first secondary combustion chamber (7) into a first waste heat boiler (8) for heat exchange; the liquid hazardous waste sampled and analyzed in the S2 is conveyed into a liquid hazardous waste intermediate tank (15) through a liquid hazardous waste conveying pump and then conveyed into a waste liquid combustion furnace (10) through the liquid hazardous waste intermediate tank (15) to be combusted, combustible flue gas generated in a pyrolysis gasification furnace (5) enters the waste liquid combustion furnace (10) through a pipeline (13) to support combustion, flue gas generated in the waste liquid combustion furnace (10) enters a secondary combustion chamber II (11) to be subjected to secondary combustion, and flue gas generated after combustion in the secondary combustion chamber II (11) enters a waste heat boiler II (12) to be subjected to heat exchange; saturated steam generated by heat exchange in the waste heat boiler I (8) and the waste heat boiler II (12) enters a steam collecting device, flue gas subjected to heat exchange in the waste heat boiler I (8) and the waste heat boiler II (12) enters a flue gas quenching tower to be cooled, the cooled flue gas enters a semi-dry flue gas desulfurization tower (17) to be deacidified, the deacidified flue gas enters an active carbon adsorption device (18) to be adsorbed, the adsorbed flue gas is heated by a flue gas reheater (22) and then enters a bag-type dust remover (19) to be dedusted, the dedusted flue gas enters a flue gas washing tower (20) to be washed through an induced draft fan (23), and the washed flue gas is discharged through a chimney (21).
10. The process according to claim 9, characterized in that: in the step S3, the temperature of the flue gas generated by the first combustion chamber (7) and the second combustion chamber (11) is 1100-1200 ℃, the temperature of the flue gas after heat exchange between the waste heat boiler (8) and the waste heat boiler (12) is 500-550 ℃, the temperature of the flue gas after being cooled by the flue gas quench tower is 200-550 ℃, and the temperature of the flue gas after being heated by the flue gas reheater (22) is 180-200 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911305275.5A CN111059549A (en) | 2019-12-18 | 2019-12-18 | Hazardous waste incineration treatment system and process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911305275.5A CN111059549A (en) | 2019-12-18 | 2019-12-18 | Hazardous waste incineration treatment system and process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111059549A true CN111059549A (en) | 2020-04-24 |
Family
ID=70302114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911305275.5A Pending CN111059549A (en) | 2019-12-18 | 2019-12-18 | Hazardous waste incineration treatment system and process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111059549A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112709988A (en) * | 2021-01-18 | 2021-04-27 | 江苏爱科固体废物处理有限公司 | Combustion method for reasonably matching solid organic wastes |
| CN113464959A (en) * | 2021-07-02 | 2021-10-01 | 深圳星河环境股份有限公司 | Incineration system and process suitable for medium-low calorific value waste liquid |
-
2019
- 2019-12-18 CN CN201911305275.5A patent/CN111059549A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112709988A (en) * | 2021-01-18 | 2021-04-27 | 江苏爱科固体废物处理有限公司 | Combustion method for reasonably matching solid organic wastes |
| CN113464959A (en) * | 2021-07-02 | 2021-10-01 | 深圳星河环境股份有限公司 | Incineration system and process suitable for medium-low calorific value waste liquid |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100526716C (en) | Plasma medical refuse burning methods | |
| CN109012124A (en) | A kind of dangerous waste incineration flue gas depth denitration purification system and method | |
| CN113182311A (en) | Hazardous waste treatment system and method based on medium-temperature pyrolysis and plasma high-temperature melting | |
| CN209076405U (en) | A kind of dangerous waste incineration flue gas depth denitration purification system | |
| CN212188526U (en) | Flue gas treatment system after sludge treatment | |
| CN107879585B (en) | Sludge resource utilization device and method | |
| CN104879759A (en) | Recycling system of after heat from exhaust gas of industrial dangerous waste incineration disposal | |
| CN111059549A (en) | Hazardous waste incineration treatment system and process thereof | |
| CN111928263A (en) | System for utilize rotary kiln to burn burning furnace and handle hazardous waste | |
| CN211551636U (en) | Waste liquid combustion system | |
| CN201662069U (en) | Carbonization incinerator for high concentration salty organic waste liquid | |
| CN111895424A (en) | Garbage disposal and generator set coupling power generation system | |
| CN102235678A (en) | Furnace for carbonizing and incinerating high-concentration salty organic waste liquid | |
| CN112062435A (en) | Oil sludge pyrolysis treatment device and process thereof | |
| CN107418602A (en) | A kind of pyrolytic gasification refuse disposal system and refuse disposal system | |
| CN108644782B (en) | Small garbage incineration structure and method thereof | |
| CN204648264U (en) | A kind of acrylate reclaims the CIU of waste material | |
| CN211694926U (en) | Useless incineration disposal system of danger | |
| CN213089821U (en) | System for utilize rotary kiln to burn burning furnace and handle hazardous waste | |
| CN213746746U (en) | Harmless treatment equipment for hazardous waste | |
| CN204404188U (en) | House refuse direct gasification melting incinerating device | |
| CN210891659U (en) | Dry pyrolysis incineration power generation system for municipal solid waste | |
| CN210345490U (en) | Incineration disposal system for organic chemical fine distillation residues | |
| CN211232880U (en) | High, low calorific value hazardous waste burns melting innocent treatment system in coordination | |
| CN210069852U (en) | Thermal decomposition grate furnace system |
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 |