CN113494710B - Animal carcass incineration treatment system and treatment method - Google Patents
Animal carcass incineration treatment system and treatment method Download PDFInfo
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- CN113494710B CN113494710B CN202010257548.XA CN202010257548A CN113494710B CN 113494710 B CN113494710 B CN 113494710B CN 202010257548 A CN202010257548 A CN 202010257548A CN 113494710 B CN113494710 B CN 113494710B
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- 239000010868 animal carcass Substances 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000007921 spray Substances 0.000 claims abstract description 37
- 239000000428 dust Substances 0.000 claims abstract description 22
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 53
- 238000002485 combustion reaction Methods 0.000 claims description 50
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 27
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 27
- 238000010791 quenching Methods 0.000 claims description 21
- 230000000171 quenching effect Effects 0.000 claims description 20
- 239000000243 solution Substances 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 239000002893 slag Substances 0.000 claims description 17
- 238000010521 absorption reaction Methods 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 15
- 239000003513 alkali Substances 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 12
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 9
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- 239000000920 calcium hydroxide Substances 0.000 claims description 9
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- 239000007924 injection Substances 0.000 claims description 8
- 239000012634 fragment Substances 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 7
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- 238000004891 communication Methods 0.000 claims description 6
- 230000007613 environmental effect Effects 0.000 claims description 6
- 229910001385 heavy metal Inorganic materials 0.000 claims description 6
- 230000003993 interaction Effects 0.000 claims description 6
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- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
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- 230000007246 mechanism Effects 0.000 claims description 3
- 239000000779 smoke Substances 0.000 claims description 3
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- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
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- 238000006477 desulfuration reaction Methods 0.000 claims description 2
- 230000023556 desulfurization Effects 0.000 claims description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims 2
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- 238000000197 pyrolysis Methods 0.000 abstract 1
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- 241001465754 Metazoa Species 0.000 description 8
- 238000007599 discharging Methods 0.000 description 8
- 230000001502 supplementing effect Effects 0.000 description 8
- 229910052799 carbon Inorganic materials 0.000 description 6
- 239000004744 fabric Substances 0.000 description 6
- 239000002253 acid Substances 0.000 description 5
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 4
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G1/00—Furnaces for cremation of human or animal carcasses
-
- 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
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2203/00—Furnace arrangements
- F23G2203/20—Rotary drum furnace
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2206/00—Waste heat recuperation
- F23G2206/20—Waste heat recuperation using the heat in association with another installation
- F23G2206/203—Waste heat recuperation using the heat in association with another installation with a power/heat generating installation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2900/00—Special features of, or arrangements for incinerators
- F23G2900/70—Incinerating particular products or waste
- F23G2900/7009—Incinerating human or animal corpses or remains
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2217/00—Intercepting solids
- F23J2217/50—Intercepting solids by cleaning fluids (washers or scrubbers)
-
- 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
- Y02E20/12—Heat utilisation in combustion or incineration of waste
-
- 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)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treating Waste Gases (AREA)
Abstract
本发明提出了一种动物尸体焚烧处理系统，属于垃圾处理技术领域，包括进料系统、焚烧系统、热交换系统、急冷喷淋系统、干式脱酸系统、除尘系统、补风系统、引风系统及湿式除酸系统，在密封条件下热解焚烧、急冷中和、脱酸及除尘彻底成为净化气体排出，同时和热回收利用装置联动将系统产生的大量热量加以回收利用，降低了运营成本。本发明还提出了一种动物尸体焚烧处理应用方法。本发明技术方案能够实现自动化控制，连续稳定运行，运行成本低，热能回收利用率高，无有害气体排放，安全可靠，经济效益良好。
The present invention proposes an animal carcass incineration treatment system, which belongs to the technical field of garbage treatment, and includes a feeding system, an incineration system, a heat exchange system, a rapid cooling spray system, a dry deacidification system, a dust removal system, an air supply system, an induced draft system and a wet deacidification system. Under sealed conditions, pyrolysis and incineration, rapid cooling and neutralization, deacidification and dust removal are completely discharged as purified gas. At the same time, the system is linked with a heat recovery device to recycle a large amount of heat generated by the system, thereby reducing operating costs. The present invention also proposes an animal carcass incineration treatment application method. The technical solution of the present invention can realize automatic control, continuous and stable operation, low operating cost, high heat recovery rate, no harmful gas emissions, safety and reliability, and good economic benefits.
Description
Technical Field
The invention relates to the technical field of garbage disposal, in particular to an animal carcass incineration disposal system and an animal carcass incineration disposal method.
Background
With the rapid development of animal husbandry, the increase of animal tissues, dead pigs and abnormal dead animal carcasses is an outstanding problem affecting the current food safety, prevention and control of animal epidemic diseases and sustainable development of animal husbandry, and serious environmental pollution and infectious diseases can be caused if the animal husbandry is improperly treated, so that the public health safety of society is directly threatened. How to effectively treat the dead animals becomes a new problem in the current animal industry development and even in the social development, and it is urgent to find a safe, effective, environment-friendly, economically feasible harmless treatment technology for the dead animals.
Disclosure of Invention
In order to solve the problems in the prior art, the invention discloses an animal carcass incineration treatment system which comprises a feeding system, an incineration system, a heat exchange system, a quenching spraying system, a dry deacidification system, a dust removal system, an air supplementing system, an air inducing system and a wet acid removal system;
the feeding system breaks animal carcasses into fragments by a crusher, and the fragments of the animal carcasses are conveyed to a hydraulic pushing device by a bucket elevator to be pushed;
The burning system comprises a rotary kiln, a secondary combustion chamber and a burner, wherein the rotary kiln is connected with the secondary combustion chamber, the burner is used for providing combustible gas for burning of the rotary kiln and the secondary combustion chamber, the rotary kiln comprises a horizontal cylinder-shaped cylinder body, a speed reducing motor and a riding wheel mechanism for driving the cylinder body to rotate are arranged at the lower part of the cylinder body, a kiln head connected with a hydraulic pushing device is arranged at the front end of the cylinder body, the kiln head is connected with the cylinder body through a front sealing device, the rear end of the cylinder body is connected with a kiln tail through a rear sealing device, the secondary combustion chamber comprises a combustion chamber, and an emergency discharge chimney is arranged at the top of the combustion chamber;
The heat exchange system is a tube type heat exchanger, the tube type heat exchanger is connected with a cold water system for heat exchange to obtain high-temperature water vapor for production and life to provide heat energy, and the cold water system is provided with a water softening device;
the quenching spraying system comprises a quenching tower, an alkali liquid pump and an atomizing spray gun, wherein the alkali liquid pump sprays alkali liquid prepared in the alkali liquid tank to high-temperature acid gas of the quenching tower through the atomizing spray gun for neutralization reaction and rapid cooling, tail gas generated by the reaction is discharged through an adjustable valve arranged at a discharge port of the quenching tower, and residues generated by the reaction are collected through an ash collector arranged at the bottom of the quenching tower;
the dry deacidification system comprises a dry adsorption tower, a slaked lime injection device and an active carbon injection device, wherein tail gas introduced into the dry adsorption tower is deacidified and desulfurized through the slaked lime injection device, and dioxin and heavy metals in the tail gas are adsorbed through the active carbon injection device;
the dust removing system comprises a cloth bag dust remover, wherein solid particles and ashes in tail gas are removed through the cloth bag dust remover, and the cloth bag dust remover is provided with a pulse cleaner for cleaning a filter bag and a constant-temperature heating device for keeping the temperature;
The wet type acid removal system comprises at least one absorption tower body, wherein a spray header is arranged in the absorption tower body, and the spray header sprays alkali liquor in an alkali liquor circulation tank into the absorption tower body through a spray pump for deacidification and desulfurization of tail gas;
the air supplementing system provides sufficient oxygen for the rotary kiln to continue burning, is used for improving the temperature of flue gas and the burn-out rate, and simultaneously introduces the heated secondary air into the secondary combustion chamber through the air supplementing system to compensate the oxygen supply;
The induced air system comprises an induced draft fan, and the induced draft fan is respectively connected with the outlets of the dry adsorption tower and the bag-type dust remover and is used for introducing tail gas into the absorption tower body.
Further, the intelligent control system comprises a control system, wherein the control system comprises a central processing unit module, a sensor module, a communication module and a man-machine interaction module, and the sensor module, the communication module and the man-machine interaction module are all connected with the central processing unit module.
Further, the denitration system is connected with the heat exchange system, the denitration system comprises an ammonia water storage device, an ammonia water solution metering and distributing device and an ejector, the ammonia water solution in the ammonia water storage device is conveyed by a liquid supply pump, a dilution waterway is arranged at an outlet of the liquid supply pump, the ammonia water solution is diluted by the ammonia water solution metering and distributing device, and the diluted ammonia water solution is conveyed to the ejector through a stainless steel heat tracing pipe.
Further, a control valve is arranged at the bottom of the emergency discharge chimney, and the control valve is used for automatically opening the valve to enable the combustion chamber to be communicated with the emergency discharge chimney when the system is in power failure.
Further, a slag remover for collecting slag generated by the combustion chamber is arranged at the bottom of the combustion chamber, and a water cooling device is arranged in the slag remover and is used for discharging the slag through a conveying device when the temperature of the slag is reduced to be below 80 ℃.
Further, the kiln head, the barrel and the kiln tail incline downwards for 1-3 degrees along a straight line and are used for moving from the kiln head to the kiln tail in the cadaver fragment burning process, and the rotating speed of the barrel is 0.2-2.0 r/min.
Further, the secondary combustion chamber further comprises an explosion-proof device arranged at the bottom of the combustion chamber, and the explosion-proof device is used for opening and releasing pressure when the pressure in the combustion chamber exceeds a preset value.
Further, the bag-type dust collector is provided with an input port and an output port, and a bypass smoke pipe is arranged between the input port and the output port.
Further, the device also comprises a chimney and a detection device arranged on the chimney, wherein the chimney is used for discharging tail gas outwards.
The invention discloses an animal carcass incineration treatment method, which comprises the following steps:
s1, starting a control system to realize system self-detection;
s2, starting an induced draft fan to realize system induced draft;
S3, starting a wind supplementing machine to supplement wind for the system;
S4, sequentially starting the burners of the rotary kiln and the secondary combustion chamber, keeping the temperature in the rotary kiln between 850 ℃ and 1050 ℃, and keeping the temperature in the secondary combustion chamber not lower than 1100 ℃;
s5, starting a slag remover, and discharging residues generated by combustion in the secondary combustion chamber through a conveying device;
S6, starting a shell and tube heat exchanger, wherein the shell and tube heat exchanger is connected with a cold water system for heat exchange to obtain high-temperature steam for production and life to provide heat energy, and the temperature of tail gas which is not lower than 1100 ℃ is introduced into the shell and tube heat exchanger for heat exchange, and then the temperature of the tail gas is 500-550 ℃;
S7, sequentially starting an atomization spray gun, a slaked lime spraying device, an active carbon spraying device, a bag-type dust remover and a spray header arranged in an absorption tower body of the quenching spray system, deacidifying and desulfurizing the tail gas, and removing harmful substances such as residual dioxin, heavy metals, dust particles and the like;
s8, starting an ammonia water solution metering and distributing device and an ejector in the denitration system, and performing reduction reaction on the tail gas sprayed with ammonia water to realize tail gas denitration;
s9, starting a detection device to analyze the components of the tail gas, and discharging the tail gas which meets the environmental protection standard into the atmosphere, otherwise, returning to the step S7 through a draught fan, and continuing to process until the tail gas meets the environmental protection standard.
The animal carcass incineration treatment system and the treatment method provided by the invention have the following beneficial technical effects:
the technical scheme of the invention can realize automatic control, continuous and stable operation, low operation cost, high heat energy recycling rate, no harmful gas emission, safety, reliability and good economic benefit.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic diagram of an animal carcass incineration disposal system according to an embodiment of the present invention;
Fig. 2 is a diagram showing the construction of a rotary kiln in an animal carcass incineration disposal system according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 and 2, an embodiment of the invention is an animal carcass incineration treatment system, which comprises a feeding system 1, an incineration system 2, a heat exchange system 3, a quenching spray system 4, a dry deacidification system 5, a dust removal system 6, an air supplementing system 8, an air inducing system 9 and a wet deacidification system 7;
the feeding system 1 breaks animal carcasses into fragments by a crusher, and the fragments of the animal carcasses are conveyed to a hydraulic pushing device by a bucket elevator to be pushed;
The incineration system 2 comprises a rotary kiln 21, a secondary combustion chamber 22 and a combustor, wherein the rotary kiln 21 is connected with the secondary combustion chamber 22, the combustor is used for the rotary kiln 21 and the secondary combustion chamber 22 to provide combustible gas for incineration, the rotary kiln 21 comprises a horizontal cylinder-shaped cylinder body 211, a speed reducing motor 212 and a riding wheel mechanism 213 for driving the cylinder body to rotate are arranged at the lower part of the cylinder body 211, a kiln head 214 connected with a hydraulic pushing device is arranged at the front end of the cylinder body 211, the kiln head 214 is connected with the cylinder body 211 through a front sealing device 215, the rear end of the cylinder body 211 is connected with a kiln tail 217 through a rear sealing device 216, the secondary combustion chamber 22 comprises a combustion chamber 221, and an emergency discharge chimney 222 is arranged at the top of the combustion chamber 221;
The heat exchange system 3 is a tube type heat exchanger, the tube type heat exchanger is connected with a cold water system for heat exchange to obtain high-temperature water vapor for production and life to provide heat energy, and the cold water system is provided with a water softening device;
the quenching spray system 4 comprises a quenching tower 41, an alkaline pump 42 and an atomizing spray gun 43, wherein the alkaline pump 42 sprays alkaline liquor prepared in the alkaline liquid tank to the high-temperature acid gas of the quenching tower 41 through the atomizing spray gun 43 for neutralization reaction and rapid cooling, tail gas generated by the reaction is discharged through an adjustable valve arranged at the discharge outlet of the quenching tower 41, and residues generated by the reaction are collected through an ash collector 411 arranged at the bottom of the quenching tower 41;
The dry deacidification system 5 comprises a dry adsorption tower 51, a slaked lime spraying device 52 and an active carbon spraying device 53, wherein tail gas introduced into the dry adsorption tower 51 is deacidified and desulfurized through the slaked lime spraying device 52, and dioxin and heavy metals in the tail gas are adsorbed through the active carbon spraying device 53;
the dust removing system 6 comprises a cloth bag dust remover 61, wherein solid particles and ashes in tail gas are removed through the cloth bag dust remover 61, and the cloth bag dust remover 61 is provided with a pulse cleaner 62 for cleaning a filter bag and a constant-temperature heating device 63 for keeping temperature;
The wet type acid removal system 7 comprises an absorption tower body 71, wherein a spray header 72 is arranged in the absorption tower body 71, and the spray header 72 sprays alkali liquor in an alkali liquor circulation tank 74 into the absorption tower body 71 through a spray pump 73 for deacidifying and desulfurizing tail gas;
The air supplementing system 8 provides sufficient oxygen for the rotary kiln 21 to continue burning for improving the temperature of flue gas and the burn-out rate, and simultaneously introduces heated secondary air into the secondary combustion chamber 22 through the air supplementing system 8 to compensate the oxygen supply;
the induced air system 9 comprises an induced air fan which is respectively connected with the outlets of the dry adsorption tower 51 and the bag-type dust collector 61 and is used for introducing tail gas into the absorption tower body 71.
According to a specific embodiment, the animal carcass incineration treatment system further comprises a control system, wherein the control system comprises a central processing unit module, a sensor module, a communication module and a man-machine interaction module, and the sensor module, the communication module and the man-machine interaction module are all connected with the central processing unit module.
According to a specific embodiment, the animal carcass incineration treatment system further comprises a denitration system connected with the heat exchange system 3, wherein the denitration system comprises an ammonia water storage device, an ammonia water solution metering and distributing device and an ejector, the ammonia water solution in the ammonia water storage device is conveyed by a liquid supply pump, a dilution waterway is arranged at an outlet of the liquid supply pump, the ammonia water solution is diluted by the ammonia water solution metering and distributing device, and the diluted ammonia water solution is conveyed to the ejector through a stainless steel heat tracing pipe.
According to one embodiment, a control valve is arranged at the bottom of the emergency exhaust stack 222, and the control valve is used for automatically opening a valve to enable the combustion chamber 221 to be communicated with the emergency exhaust stack 222 when the system fails.
According to one embodiment, the bottom of the combustion chamber 221 is provided with a slag remover for collecting slag generated by the combustion chamber, and a water cooling device is arranged in the slag remover and is used for discharging the slag through a conveying device when the temperature of the slag is reduced to below 80 ℃.
According to one embodiment, the kiln head 214, the cylinder 211 and the kiln tail 217 are inclined downward by 2 degrees along a straight line for moving from the kiln head 214 to the kiln tail 217 in the process of incinerating the corpse fragments, and the rotation speed of the cylinder is 0.2-2.0 r/min.
According to one embodiment, the secondary combustion chamber 22 further comprises an explosion-proof means provided at the bottom of said combustion chamber for opening and releasing the pressure when the pressure in the combustion chamber exceeds a preset value.
According to one embodiment, the bag house 61 has an inlet 611 and an outlet 612, and a bypass flue 613 is disposed between the inlet 611 and the outlet 612.
According to one embodiment, the animal carcass incineration disposal system further comprises a chimney 10 and a detection device arranged on the chimney 10, wherein the chimney 10 is used for discharging tail gas outwards.
The embodiment of the invention discloses an animal carcass incineration treatment method, which comprises the following steps:
s1, starting a control system to realize system self-detection;
s2, starting an induced draft fan to realize system induced draft;
S3, starting a wind supplementing machine to supplement wind for the system;
S4, sequentially starting the burners of the rotary kiln and the secondary combustion chamber, keeping the temperature in the rotary kiln between 850 ℃ and 1050 ℃, and keeping the temperature in the secondary combustion chamber not lower than 1100 ℃;
s5, starting a slag remover, and discharging residues generated by combustion in the secondary combustion chamber through a conveying device;
S6, starting a shell and tube heat exchanger, wherein the shell and tube heat exchanger is connected with a cold water system for heat exchange to obtain high-temperature steam for production and life to provide heat energy, and the temperature of tail gas which is not lower than 1100 ℃ is introduced into the shell and tube heat exchanger for heat exchange, and then the temperature of the tail gas is 500-550 ℃;
S7, sequentially starting an atomization spray gun, a slaked lime spraying device, an active carbon spraying device, a bag-type dust remover and a spray header arranged in an absorption tower body of the quenching spray system, deacidifying and desulfurizing the tail gas, and removing harmful substances such as residual dioxin, heavy metals, dust particles and the like;
s8, starting an ammonia water solution metering and distributing device and an ejector in the denitration system, and performing reduction reaction on the tail gas sprayed with ammonia water to realize tail gas denitration;
s9, starting a detection device to analyze the components of the tail gas, and discharging the tail gas which meets the environmental protection standard into the atmosphere, otherwise, returning to the step S7 through a draught fan, and continuing to process until the tail gas meets the environmental protection standard.
The animal carcass incineration treatment system and the treatment method provided by the invention have the following beneficial technical effects:
the technical scheme of the invention can realize automatic control, continuous and stable operation, low operation cost, high heat energy recycling rate, no harmful gas emission, safety, reliability and good economic benefit.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (6)
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