CN214791158U - Useless processing system of fluorine-containing danger - Google Patents

Useless processing system of fluorine-containing danger Download PDF

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Publication number
CN214791158U
CN214791158U CN202120751559.3U CN202120751559U CN214791158U CN 214791158 U CN214791158 U CN 214791158U CN 202120751559 U CN202120751559 U CN 202120751559U CN 214791158 U CN214791158 U CN 214791158U
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incineration
fluorine
module
waste
hazardous waste
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马晓军
纪伟勇
李秀朝
杨虎林
蓝丽梅
项乐群
黎梦薇
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Zhejiang Sanlian Environment Machinery Equipment Co ltd
Zhejiang Environmental Protection Group Co ltd
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Zhejiang Sanlian Environment Machinery Equipment Co ltd
Zhejiang Environmental Protection Group Co ltd
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Abstract

The utility model discloses a useless processing system of fluorine-containing danger, including preceding processing module, preceding processing module is used for carrying out the processing of fluorine-containing danger and burns the module, burns the module and includes incineration device and second combustion chamber, burns the device and includes entrance point and exit end, burns the entrance point and the preceding processing module intercommunication of incineration device, exit end and second combustion chamber intercommunication; the cooling module comprises a quenching tower and industrial water arranged in the quenching tower, and the quenching tower is communicated with the secondary combustion chamber; and the tail gas post-treatment module comprises a denitration device, a dust removal device and a deacidification device which are sequentially communicated, and the denitration device is communicated with the quench tower. The utility model provides a fluorine-containing hazardous waste treatment system, which treats hazardous waste by burning, completely decomposes organic matters in the hazardous waste and eliminates pathogens; the corrosion to the incineration device is reduced, and the service life of the incineration device is prolonged; the social environmental benefit and the economic benefit of dangerous waste treatment are fully exerted.

Description

Useless processing system of fluorine-containing danger
Technical Field
The utility model belongs to the technical field of hazardous waste treatment technology and specifically relates to a useless processing system of fluorine-containing danger is related to.
Background
With the continuous progress of modern construction, waste is inevitably generated during the production of some products, and particularly dangerous waste, particularly fluorine-containing dangerous waste, is generated in the electronic industry, the chemical industry and the like. With the continuous and clear understanding of environmental risks and hazards in various regions in recent years, the treatment of hazardous wastes is more and more important, but the hazardous wastes contain more harmful substances and are difficult to treat, wherein the treatment method taking incineration as a core is the most thorough treatment method in the hazardous wastes, but some fluorine-containing hazardous wastes can generate high-corrosive gas in a high-temperature environment and can damage an incineration device. For example, the publication of "a fluorine-containing organic waste liquid and exhaust gas negative pressure incineration treatment system and method" in the chinese patent literature, publication No. CN103292332B, includes an incinerator, a fluorine-containing organic waste liquid and exhaust gas supply system, a fuel supply system, a negative pressure air supply system, a flue gas quenching and HF recovery system, and an alkali washing system; firstly, respectively and simultaneously feeding fluorine-containing waste liquid and waste gas into a combustion chamber of an incinerator; in the presence of oxygen, the reaction temperature in the incinerator is 1100-1200 ℃, the pressure is maintained at-50 Pa, and the fluorine-containing waste liquid and the waste gas are subjected to pyrolysis reaction; promoting the conversion of redundant organic fluorine into inorganic hydrogen fluoride by adding H2 or CH4 into the incinerator, and finally ensuring the conversion of all the organic fluorine into the inorganic hydrogen fluoride; the reaction products discharged from the combustion chamber of the incinerator are treated and discharged into the atmosphere through a chimney. Although the technical scheme of the invention reduces the number and links of parameter adjustment, is convenient for operation and maintains the long-period stable operation of production, the fluorine-containing waste liquid and the waste gas can generate highly corrosive gas, particularly fluoride, at high temperature, the inner wall of the incinerator can be corroded, the damage of the incinerator is caused, and the service life of the incinerator is reduced.
Disclosure of Invention
The utility model provides a fluorine-containing hazardous waste treatment system, which can completely decompose the organic substances in the hazardous waste and eliminate pathogens by burning the hazardous waste to treat the hazardous waste, in order to overcome the problems that the hazardous waste is difficult to treat in the prior art, the high-corrosivity gas generated by the fluorine-containing hazardous waste damages the inner wall of the incinerator when the burning treatment method is used, and the service life of the incinerator is shortened; the corrosion to the incineration device is reduced, and the service life of the incineration device is prolonged; the social environmental benefit and the economic benefit of dangerous waste treatment are fully exerted.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a fluorine-containing hazardous waste treatment system comprises a pretreatment module, wherein the pretreatment module is used for pretreating fluorine-containing hazardous waste to burn the module, the burning module comprises a burning device and a secondary combustion chamber, the burning device comprises an inlet end and an outlet end, the inlet end of the burning device is communicated with the pretreatment module, and the outlet end is communicated with the secondary combustion chamber; the cooling module comprises a quenching tower and industrial water arranged in the quenching tower, and the quenching tower is communicated with the secondary combustion chamber; the tail gas aftertreatment module, the tail gas aftertreatment module is including the denitrification facility, dust collector and the deacidification device that communicate the setting in proper order, denitrification facility and quench tower intercommunication.
In the technical scheme, the hazardous solid waste is treated mainly by burning, organic matters in the hazardous solid waste are completely decomposed and pathogens are eliminated, and the pretreatment module is used for pretreating the fluorine-containing hazardous waste, so that the fluorine-containing hazardous waste is conveyed into the burning device and is more favorable for burning, and the burning efficiency is improved; the arrangement of the secondary combustion chamber can fully combust the incompletely combusted smoke, so that the incineration is more thorough; the quenching tower is used for cooling the high-temperature flue gas generated by the incineration module, and the quenching tower is used for carrying out ultra-cold cooling by spraying industrial water, so that the temperature of the flue gas is reduced to be below 200 ℃ in a short time of 2 seconds, the flue gas is convenient to carry out post-treatment, the high-temperature flue gas is prevented from damaging a tail gas post-treatment device, the maintenance period is shortened, and the service life of each device is prolonged; the tail gas post-treatment module is arranged to facilitate weak and small treatment of the flue gas generated by incineration, so that the flue gas is discharged up to the standard.
Preferably, the incineration device is a vertical incineration furnace, the vertical incineration furnace comprises a furnace body made of refractory materials and a furnace bed made of refractory materials, the furnace bed is arranged at the bottom of the furnace body, an annular air distribution pipe is arranged in the furnace bed, a plurality of ventilation covers for supplying oxygen for incineration in the furnace body are arranged on the annular air distribution pipe, and the ventilation covers are made of refractory and corrosion-resistant materials; the stirring device is further arranged in the furnace body and comprises a stirring main shaft arranged in the middle of the bottom of the furnace body, a plurality of annular stirring arms arranged at the end part of the stirring main shaft and a plurality of shoveling plates arranged on the stirring arms, and the shoveling plates are perpendicular to the stirring arms.
The stirring device uniformly stirs the burned materials and the burned ash and provides stir-frying and advancing power for the solid phase; the ventilation cover is arranged to supply oxygen for incineration in the furnace body, and is made of a fireproof and corrosion-resistant material, so that the corrosion rate is reduced while ventilation is performed, and the replacement period of the ventilation cover is shortened; fluorine-containing dangerous waste enters a vertical incinerator as an incineration material, the combustion temperature in the vertical incinerator is strictly controlled at about 850 ℃, the residence time of flame combustion is greater than 2 seconds, and under the action of a stirring device and a ventilation cover arranged in an annular mode, combustion flame is a rotary slip device to form turbulence disturbance, the incineration material on a hearth is also overturned ceaselessly under the action of the stirring device to advance, so that solid phase and gas phase can be fully combusted, and the generation of dioxin in the incineration process is strictly controlled.
Preferably, the pretreatment module comprises an agriculture and animal husbandry solid waste treatment module, a barreled dangerous solid waste treatment module, a dangerous waste liquid treatment module and a dangerous solid waste treatment module.
Different pre-treatments are carried out on different dangerous solid wastes, and the economic benefits of dangerous waste treatment are improved by utilizing different treatment processes.
Preferably, the agriculture and animal husbandry solid waste treatment module comprises a refrigeration house for freezing agriculture and animal husbandry solid waste, a crusher for crushing the frozen agriculture and animal husbandry solid waste into chips and a plunger pump for conveying the agriculture and animal husbandry solid waste; the barreled dangerous solid waste treatment module comprises a barreled waste elevator for conveying the barreled dangerous solid waste into the incineration device; the hazardous waste liquid treatment module comprises a spray gun for directly spraying the hazardous waste liquid into the incineration device and/or the secondary combustion chamber; the dangerous solid waste treatment module comprises a material pit for storing broken dangerous solid waste and a grab bucket for conveying the dangerous solid waste.
The water content in the agricultural and pastoral solid waste is high, and the frozen solid waste is frozen to form solid waste which is convenient to crush into chips and then convey the chips into an incineration device for incineration, so that the transportation is convenient; the dangerous solid wastes are complex in source and indefinite in shape, so that the dangerous solid wastes are firstly crushed and then conveyed to a burning device by a grab bucket for burning.
Preferably, the dangerous solid waste treatment module further comprises a feeder, and the feeder is arranged between the grab bucket and the incineration device.
The arrangement of the feeder is convenient for conveying the dangerous solid wastes uniformly and quantitatively into the vertical incinerator for incineration treatment.
Preferably, a waste heat recovery device is arranged between the secondary combustion chamber and the quenching tower, and the waste heat recovery device is a waste heat boiler.
Under the situation that the waste treatment capacity is large, waste heat recovery is carried out to the accessible addding exhaust-heat boiler, increase economic efficiency, the high temperature flue gas of second combustion chamber exhaust is spouted into urea when getting into exhaust-heat boiler and is carried out denitration treatment, it adopts selectivity non-catalytic reduction method SNCR to reduce the concentration of burning nitrogen oxide in the flue gas, high temperature flue gas absorbs heat through exhaust-heat boiler and produces steam, utilize steam to generate electricity and heat supply, economic benefits is improved, and after exhaust-heat boiler heat recovery, exhaust flue gas temperature is less than or equal to 500 ℃.
Preferably, a slag extractor is arranged behind the second combustion chamber.
And the residues generated in the secondary combustion chamber are discharged through a slag extractor, so that the incineration residues are collected and then uniformly treated.
Preferably, the denitration device is a dry denitration device, slaked lime and activated carbon are arranged in the dry denitration device, the dust removal device is a cloth bag dust removal device, the deacidification device is a wet deacidification device, and an induced draft fan used for conveying flue gas into the wet deacidification device is arranged behind the cloth bag dust removal device.
The flue gas after the temperature is rapidly cooled enters a dry-type denitration device, acid gas and other harmful substances in the flue gas are removed by spraying slaked lime and activated carbon, and the activated carbon, slaked lime products after reaction and other dust in the flue gas are collected by a cloth bag dust removal device; the flue gas after cloth bag dust removal enters a wet deacidification device through a draught fan, acid gas in the flue gas is further reduced by spraying alkali liquor, and the discharged flue gas is ensured to reach the national emission standard; wastewater generated by the wet deacidification device enters a wastewater treatment system for purification treatment; and demisting and de-whitening the flue gas subjected to wet deacidification, and then discharging the flue gas through a chimney to reach the standard.
Preferably, the fly ash storage device is used for storing fly ash generated by a waste heat boiler, a quenching tower and a cloth bag dust removal device.
The fly ash storage device is convenient for storing the fly ash generated by each device, avoiding the fly ash to be discharged into the atmosphere and simultaneously facilitating the fly ash to be entrusted to a third party for unified treatment.
Therefore, the utility model discloses following beneficial effect has: the hazardous waste is treated by incineration, so that organic matters in the hazardous waste are completely decomposed and pathogens are eliminated; the corrosion to the incineration device is reduced, and the service life of the incineration device is prolonged; the social environmental benefit and the economic benefit of dangerous waste treatment are fully exerted.
Drawings
FIG. 1 is a first process flow diagram of a fluorine-containing hazardous waste treatment process;
FIG. 2 is a second process flow diagram of a fluorine-containing hazardous waste treatment process;
FIG. 3 is a third process flow diagram of a fluorine-containing hazardous waste treatment process;
FIG. 4 is a fourth process flow diagram of a fluorine-containing hazardous waste treatment process;
FIG. 5 is a schematic view of the structure of an incinerator;
in the figure: 1. the device comprises a pretreatment module 2, an incineration module 3, a cooling module 4, a tail gas aftertreatment module 5, a vertical incinerator 501, a furnace body 502, a hearth 503, a stirring device 504, a ventilation cover 505 and an annular air distribution pipe.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description.
Example 1:
as shown in fig. 1 and 2, in embodiment 1, a fluorine-containing hazardous waste treatment system includes a pretreatment module 1, an incineration module 2, a cooling module 3, and a tail gas post-treatment module 4.
Pretreatment module 1 is used for carrying out the pretreatment with useless fluoride danger and burns module 2, and fluoride danger is useless mainly including solid useless, the dangerous useless admittedly of barreled, dangerous waste liquid and dangerous solid useless of farming-grazing, therefore pretreatment module 1 includes the solid useless processing module of farming-grazing admittedly, dangerous waste liquid processing module and dangerous solid useless processing module of barreled danger. The agricultural and pastoral solid waste treatment module comprises a refrigeration house for freezing the agricultural and pastoral solid waste, a crusher for crushing the frozen agricultural and pastoral solid waste into chips and a plunger pump for conveying the agricultural and pastoral solid waste; the barreled dangerous solid waste treatment module comprises a barreled waste elevator for conveying the barreled dangerous solid waste into the incineration device; the hazardous waste liquid treatment module comprises a spray gun for directly spraying the hazardous waste liquid into the incineration device and/or the secondary combustion chamber; the dangerous solid waste treatment module comprises a material pit for storing broken dangerous solid waste and a grab bucket for conveying the dangerous solid waste.
Further, dangerous solid useless processing module still includes the feeder, and the feeder setting is between grab bucket and incineration device, and the setting of feeder is convenient for carry the even ration of dangerous solid useless vertical incinerator 5 in burning the processing.
The incineration module 2 comprises an incineration device and a secondary combustion chamber, the incineration device comprises an inlet end and an outlet end, the inlet end of the incineration device is communicated with the pretreatment module 1, and the outlet end is communicated with the secondary combustion chamber
Cooling module 3 includes quench tower and the industrial water of setting in the quench tower, quench tower and two combustion chambers intercommunication, quench tower is used for cooling down the high temperature flue gas that burns module 2 production, it carries out utmost point cold cooling through spraying industrial water, make it reduce the flue gas temperature to below 200 ℃ in little and 2 seconds's time, be convenient for carry out the aftertreatment to the flue gas, also avoid high temperature flue gas to cause the damage to tail gas aftertreatment device, reduce maintenance cycle, the life of each device is improved.
Tail gas aftertreatment module 4 is including the denitrification facility, dust collector and the deacidification device that communicate the setting in proper order, denitrification facility and quench tower intercommunication. The denitration device is a dry denitration device, slaked lime and active carbon are arranged in the dry denitration device, the dust removal device is a cloth bag dust removal device, the deacidification device is a wet deacidification device, an induced draft fan used for conveying the flue gas into the wet deacidification device is arranged behind the cloth bag dust removal device, the flue gas after quenching and cooling enters the dry denitration device, acid gas and other harmful substances in the flue gas are removed by spraying slaked lime and the active carbon, slaked lime products after reaction and other dust in the flue gas are collected by the cloth bag dust removal device; the flue gas after cloth bag dust removal enters a wet deacidification device through a draught fan, acid gas in the flue gas is further reduced by spraying alkali liquor, and the discharged flue gas is ensured to reach the national emission standard; wastewater generated by the wet deacidification device enters a wastewater treatment system for purification treatment; and demisting and de-whitening the flue gas subjected to wet deacidification, and then discharging the flue gas through a chimney to reach the standard.
Further, as shown in fig. 5, the incineration device is a vertical incineration furnace 5, the vertical incineration furnace 5 includes a furnace body 501 made of refractory material and a hearth 502 made of refractory material, the hearth 502 is arranged at the bottom of the furnace body 501, an annular air distribution pipe 505 is arranged in the hearth 502, a plurality of ventilation covers 504 for supplying oxygen for incineration in the furnace body 501 are arranged on the annular air distribution pipe 505, and the ventilation covers 504 are made of refractory and corrosion-resistant material; the furnace body 501 is also internally provided with a stirring device 503, the stirring device 503 comprises a stirring main shaft arranged in the middle of the bottom of the furnace body 501, a plurality of annular stirring arms arranged at the end part of the stirring main shaft and a plurality of shoveling plates arranged on the stirring arms, and the shoveling plates are perpendicular to the stirring arms. The stirring device 503 uniformly stirs the burned material and the burned ash, and provides stir-frying and advancing power for the solid phase; the ventilation cover 504 is arranged to supply oxygen for incineration in the furnace body 501, and the ventilation cover 504 is made of a fireproof and corrosion-resistant material, so that the corrosion rate is reduced while ventilation is performed, and the replacement period of the ventilation cover 504 is shortened; fluorine-containing hazardous waste enters the vertical incinerator 5 as an incineration material, the combustion temperature in the vertical incinerator 5 is strictly controlled to be about 850 ℃, the residence time of flame combustion is more than 2 seconds, combustion flame is in a rotary slide way under the action of the stirring device 503 and the annularly arranged ventilation cover 504 to form turbulence disturbance, the incineration material on the hearth 502 is also in continuous turnover and advance under the action of the stirring device 503, so that both solid phase and gas phase can be fully combusted, and the generation of dioxin in the incineration process is strictly controlled.
Example 2:
as shown in fig. 2, the embodiment 2 is basically the same as the embodiment 1, except that: and a waste heat recovery device is arranged between the secondary combustion chamber and the quench tower, and the waste heat recovery device is arranged as a waste heat boiler. Under the situation that the waste treatment capacity is large, waste heat recovery is carried out to the accessible addding exhaust-heat boiler, increase economic efficiency, the high temperature flue gas of second combustion chamber exhaust is spouted into urea when getting into exhaust-heat boiler and is carried out denitration treatment, it adopts selectivity non-catalytic reduction method SNCR to reduce the concentration of burning nitrogen oxide in the flue gas, high temperature flue gas absorbs heat through exhaust-heat boiler and produces steam, utilize steam to generate electricity and heat supply, economic benefits is improved, and after exhaust-heat boiler heat recovery, exhaust flue gas temperature is less than or equal to 500 ℃.
Example 3:
as shown in fig. 3, the embodiment 3 is basically the same as the embodiment 1, except that: the device that burns sets up to the rotary kiln, uses the rotary kiln to burn when burning the processing useless or the useless incineration disposal of no fluorine danger of low fluorine, and the rotary kiln has that the handling capacity is big, the wide characteristics of application scope, and the useless or useless not hard to damage rotary kiln of fluoride that only can produce very little in the high temperature burning process of low fluorine danger.
Example 4:
embodiment 4 is a fluorine-containing hazardous waste treatment system uses process flow, and it mainly includes the following steps:
s1: carrying out incineration pretreatment on the fluorine-containing hazardous waste in the pretreatment module 1;
s2: conveying the fluorine-containing hazardous waste into an incineration device for incineration treatment, wherein the incineration temperature is 850-1100 ℃, introducing smoke and residues generated after incineration into a secondary combustion chamber for full combustion treatment, and introducing a proper amount of auxiliary fuel into the secondary combustion chamber to maintain the combustion temperature; introducing urea into high-temperature flue gas generated by incineration treatment;
s3: introducing the high-temperature flue gas mixed with urea into a quench tower, and carrying out ultra-cold cooling by spraying industrial water;
s4: introducing flue gas generated by incineration treatment of the low-fluorine hazardous waste after rapid cooling and flue gas generated by incineration treatment of the high-fluorine hazardous waste after rapid cooling into a dry denitration device at the same time, removing acid gas and other harmful substances in the flue gas by spraying slaked lime and activated carbon,
s5: collecting active carbon, reacted slaked lime product and other dust in the flue gas by cloth bag dust removal;
s6: the flue gas after cloth bag dust removal enters a wet deacidification device through a draught fan, acid gas in the flue gas is further reduced by spraying liquid caustic soda, and the discharged flue gas is ensured to reach the national emission standard;
s7: wastewater generated by the wet deacidification device enters a wastewater treatment system for purification treatment; and demisting and de-whitening the flue gas subjected to wet deacidification, and then discharging the flue gas through a chimney to reach the standard.
In step S1, the pretreatment of the hazardous solid waste includes the following four paths:
(1) the water content of the agricultural and pastoral solid waste is high, the agricultural and pastoral solid waste is stored in a refrigeration house, is crushed into chips by a crusher after being frozen, and is sent into an incineration device by a plunger pump for incineration;
(2) lifting the barreled dangerous solid waste by a barreled waste lifter and then putting the barreled dangerous solid waste into an incineration device for incineration;
(3) one part of the hazardous waste liquid directly enters the incineration device for incineration, and the other part of the hazardous waste liquid is sprayed into the secondary combustion chamber for combustion;
(4) the dangerous solid waste has complex source and indefinite shape, so the dangerous solid waste is firstly crushed and then enters a material pit for storage, and then is put into an incineration device by a grab bucket for incineration treatment.
Further, in step S2, the incineration apparatus is provided as the vertical type incinerator 5 and/or the rotary kiln. For dangerous wastes with different fluorine contents, the incineration devices of the dangerous wastes are different, and different treatment processes are utilized to treat low-fluorine dangerous wastes and high-fluorine dangerous wastes, so that the social environmental benefits and the economic benefits of dangerous waste treatment are improved. For high-fluorine dangerous waste, the incineration treatment device is a vertical incinerator 5, the high-fluorine dangerous waste can generate strong corrosive acid gas, especially fluoride, in a high-temperature incineration environment, the high-fluorine dangerous waste is incinerated by the vertical incinerator 5, the service cycle of the incinerator is prolonged, the maintenance frequency is reduced, the maintenance cycle is shortened, and the operation and maintenance cost is reduced; for the low-fluorine dangerous waste and the fluorine-free dangerous waste, the incineration device is set as a rotary kiln.
Further, as shown in fig. 4, step S2 includes burning the low-fluorine hazardous waste and the high-fluorine hazardous waste respectively through the rotary kiln and the vertical incinerator 5, and then entering the second combustion chamber and the cooling module 3, and finally performing post-treatment on the flue gas generated by the low-fluorine hazardous waste incineration treatment after rapid cooling and the flue gas generated by the high-fluorine hazardous waste incineration treatment after rapid cooling so as to reach the standard for emission.
Further, for the situation of large waste treatment capacity, a waste heat boiler is additionally arranged after the second combustion chamber, and the following steps are further included in S2 and S3: and (3) spraying urea into the high-temperature flue gas discharged from the secondary combustion chamber when the high-temperature flue gas enters a waste heat boiler for denitration treatment (the concentration of nitrogen oxides in the incineration flue gas is reduced by adopting a selective non-catalytic reduction method SNCR), absorbing heat by the high-temperature flue gas through the waste heat boiler to generate steam, and generating power and supplying heat by utilizing the steam. After the heat of the waste heat boiler is recovered, the temperature of the discharged flue gas is less than or equal to 500 ℃.
It should be noted that as used in the foregoing description, the terms "front," "back," "left," "right," "upper" and "lower" refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
The above examples are only for illustrating the present invention and are not intended to limit the scope of the present invention. Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes are intended to fall within the scope of the claims.

Claims (9)

1. A fluorine-containing hazardous waste treatment system is characterized by comprising,
the pretreatment module (1), the pretreatment module (1) is used for pretreating the fluorine-containing hazardous waste
The incineration module (2) comprises an incineration device and a secondary combustion chamber, the incineration device comprises an inlet end and an outlet end, the inlet end of the incineration device is communicated with the pretreatment module (1), and the outlet end is communicated with the secondary combustion chamber;
the cooling module (3) comprises a quenching tower and industrial water arranged in the quenching tower, and the quenching tower is communicated with the secondary combustion chamber;
tail gas aftertreatment module (4), tail gas aftertreatment module (4) are including the denitrification facility, dust collector and the deacidification device that communicate the setting in proper order, denitrification facility and quench tower intercommunication.
2. The system for treating fluorine-containing hazardous waste according to claim 1, wherein the incineration device is arranged as a vertical incinerator (5), the vertical incinerator (5) comprises an incinerator body (501) made of refractory material and a hearth (502) made of refractory material, the hearth (502) is arranged at the bottom of the incinerator body (501), an annular air distribution pipe (505) is arranged in the hearth (502), a plurality of ventilation covers (504) for supplying oxygen for incineration in the incinerator body (501) are arranged on the annular air distribution pipe (505), and the ventilation covers (504) are made of refractory and corrosion-resistant materials; the furnace body (501) is also internally provided with a stirring device (503), the stirring device (503) comprises a stirring main shaft arranged in the middle of the bottom of the furnace body (501), a plurality of stirring arms annularly arranged at the end part of the stirring main shaft and a plurality of shoveling plates arranged on the stirring arms, and the shoveling plates are perpendicular to the stirring arms.
3. The system for treating hazardous waste containing fluorine according to claim 1, wherein the pretreatment module (1) comprises an agriculture and animal husbandry solid waste treatment module, a barreled hazardous solid waste treatment module, a hazardous waste liquid treatment module and a hazardous solid waste treatment module.
4. The system for treating the fluorine-containing hazardous waste according to claim 3,
the agriculture and animal husbandry solid waste treatment module comprises a refrigeration house for freezing agriculture and animal husbandry solid waste, a crusher for crushing the frozen agriculture and animal husbandry solid waste into fragments, and a plunger pump for conveying the agriculture and animal husbandry solid waste;
the barreled dangerous solid waste treatment module comprises a barreled waste elevator for conveying the barreled dangerous solid waste into the incineration device;
the hazardous waste liquid treatment module comprises a spray gun for directly spraying the hazardous waste liquid into the incineration device and/or the secondary combustion chamber;
the dangerous solid waste treatment module comprises a material pit for storing broken dangerous solid waste and a grab bucket for conveying the dangerous solid waste.
5. The system of claim 4, wherein the hazardous waste treatment module further comprises a feeder, and the feeder is arranged between the grab bucket and the incineration device.
6. The system for treating fluorine-containing hazardous waste according to any one of claims 1 to 5, wherein a waste heat recovery device is arranged between the secondary combustion chamber and the quenching tower, and the waste heat recovery device is a waste heat boiler.
7. The system for treating the fluorine-containing hazardous waste according to any one of claims 1 to 5, wherein a slag extractor is further arranged behind the secondary combustion chamber.
8. The system according to any one of claims 1 to 5, wherein the denitration device is a dry denitration device, slaked lime and activated carbon are disposed in the dry denitration device, the dedusting device is a cloth bag dedusting device, the deacidification device is a wet deacidification device, and an induced draft fan for conveying flue gas into the wet deacidification device is disposed behind the cloth bag dedusting device.
9. The system for treating hazardous waste containing fluorine according to claim 8, further comprising a fly ash storage device for storing fly ash generated by the exhaust-heat boiler, the quench tower and the cloth bag dust removal device.
CN202120751559.3U 2021-04-13 2021-04-13 Useless processing system of fluorine-containing danger Active CN214791158U (en)

Priority Applications (1)

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CN202120751559.3U CN214791158U (en) 2021-04-13 2021-04-13 Useless processing system of fluorine-containing danger

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Application Number Priority Date Filing Date Title
CN202120751559.3U CN214791158U (en) 2021-04-13 2021-04-13 Useless processing system of fluorine-containing danger

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Publication Number Publication Date
CN214791158U true CN214791158U (en) 2021-11-19

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