CN209885570U - Useless line two dry process deacidification dust pelletizing system that burns of danger - Google Patents

Useless line two dry process deacidification dust pelletizing system that burns of danger Download PDF

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Publication number
CN209885570U
CN209885570U CN201920083633.1U CN201920083633U CN209885570U CN 209885570 U CN209885570 U CN 209885570U CN 201920083633 U CN201920083633 U CN 201920083633U CN 209885570 U CN209885570 U CN 209885570U
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deacidification
dry
type
storage bin
air inlet
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CN201920083633.1U
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Chinese (zh)
Inventor
唐雁春
张寅璞
卢斌斌
彭杰夏
董健永
杨志诚
吴鑫铭
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Shanghai HOPE Environmental Protection Engineering Co Ltd
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Shanghai HOPE Environmental Protection Engineering Co Ltd
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Abstract

The utility model relates to the field of machinary, concretely relates to deacidification dust pelletizing system. The utility model provides a useless line dual dry process deacidification dust pelletizing system that burns of danger, includes a deacidification dust pelletizing system, and deacidification dust pelletizing system includes a quench tower, one-level dry-type deacidification reactor, one-level sack cleaner, second grade dry-type deacidification reactor, second grade sack cleaner. Through the design, the utility model provides a double-dry deacidification and dust removal system for hazardous waste incineration lines, which overcomes the defects of large occupied area, treatment of generated sewage and sludge and the like of the existing deacidification and dust removal system, removes the treatment process of the sewage and the sludge, and reduces the discharge of the sewage; the system has short process flow, centralized equipment arrangement and small system floor area, and simultaneously adopts the independently arranged bag-type dust remover, so that the influence of equipment failure and maintenance on the whole system is lower, and the system stability is superior to that of the traditional deacidification and dust removal system.

Description

Useless line two dry process deacidification dust pelletizing system that burns of danger
Technical Field
The utility model relates to the field of machinary, specifically, relate to deacidification dust pelletizing system.
Background
At present, the most applied of the deacidification and dust removal system of the hazardous waste incineration line is a 'dry method + wet method' deacidification and dust removal system, and waste gas firstly enters the dry method deacidification and dust removal system from a quench tower and then enters the wet method dust removal system. Wet dedusting systems remove sulfur dioxide by scrubbing flue gas with a liquid caustic absorbent. Firstly, in the aspect of process, the wet dust removal system needs to be integrally considered by adding a sewage treatment part, so that the process flow of the wet dust removal system is lengthened, the flue gas purification part and the sewage treatment part are mutually independent, the equipment arrangement is dispersed, and the occupied area is large; secondly, the pipeline equipment of the wet dust removal system has to be anticorrosive, the produced sewage and sludge are treated, meanwhile, the wet dust removal system also needs to discharge part of the sewage periodically, the sewage contains a large amount of harmful substances such as suspended matters, cyanogen, phenols and heavy metal ions, the lifting height of the flue gas is reduced, and the chimney can produce condensed water when the temperature is lower.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a two dry process deacidification dust pelletizing system of useless line that burns of danger to solve above-mentioned at least one technical problem.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a double-dry-method deacidification and dust removal system of a hazardous waste incineration line comprises a deacidification and dust removal system and is characterized in that the deacidification and dust removal system comprises a quench tower, a primary dry-type deacidification reactor, a primary bag-type dust remover, a secondary dry-type deacidification reactor and a secondary bag-type dust remover;
a smoke outlet of the quenching tower is connected with an air inlet of the primary dry-type deacidification reactor, an air outlet of the primary dry-type deacidification reactor is connected with an air inlet of the primary bag-type dust remover, an air outlet of the primary bag-type dust remover is connected with an air inlet of the secondary dry-type deacidification reactor, and an air outlet of the secondary dry-type deacidification reactor is connected with an air inlet of the secondary bag-type dust remover;
the air inlet department of one-level dry-type deacidification reactor ann has one and is used for spouting into the first nozzle of baking soda powder, the air inlet department of one-level sack cleaner ann has one and is used for spouting into the second nozzle of active carbon powder, the air inlet department of second grade dry-type deacidification reactor ann has one and is used for spouting into the third nozzle of baking soda powder, the air inlet department of second grade sack cleaner ann has one and is used for spouting into the fourth nozzle of active carbon powder.
A first storage bin for storing baking soda powder is arranged on one side of the primary dry-type deacidification reactor, a discharge port of the first storage bin is connected with an air inlet of a first fan through a pipeline, and an air outlet of the first fan is connected with the first nozzle through a pipeline;
and a second storage bin for storing baking soda powder is arranged on one side of the secondary dry-type deacidification reactor, a discharge port of the second storage bin is connected with an air inlet of a second fan through a pipeline, and an air outlet of the second fan is connected with the third nozzle through a pipeline.
The first fan adopts one of a Roots fan and a centrifugal fan.
A first stirring rod is arranged in the first storage bin, and a second stirring rod is arranged in the second storage bin.
The discharge hole of the first storage bin is arranged at the lower part of the first storage bin;
the first stirring rod is a spiral rod, the spiral rod comprises a straight rod, a sheet-shaped protrusion is arranged on the straight rod, and the sheet-shaped protrusion is spirally arranged on the outer surface of the straight rod.
A first screen is installed at the discharge outlet of the first storage bin, and a second screen is installed at the discharge outlet of the second storage bin.
The primary bag-type dust collector and the secondary bag-type dust collector are both provided with a dust discharging device.
The utility model is connected with a primary dry deacidification reactor, a primary cloth bag dust remover, a secondary dry deacidification reactor and a secondary cloth bag dust remover in series behind the quench tower; wherein alkaline adsorbent, i.e. baking soda powder, is sprayed into the inlets of the first and second dry deacidification reactors, and the adsorbent rapidly expands and decomposes into Na under the working condition temperature of 200 DEG C2 Co3+H2 O+Co2Newly produced sodium carbonate Na2 Co3The reaction activity is high at the moment of generation, and the reaction product can spontaneously and chemically react with acidic pollutants in the flue gas to generate a large amount of salt which is discharged through an ash discharging device; active carbon powder is sprayed at the inlet of the first-stage bag-type dust collector and the second-stage bag-type dust collector, the adsorbent and the active carbon circulate between the second-stage bags, in the first-stage bag-type dust collector and the second-stage bag-type dust collector, the fly ash, the acid gas and the solid-phase dioxin attached to the fly ash and the solid-phase dioxin are removed by the first-stage bag-type dust collector, the first-stage bag-type dust collector does not completely remove part of the acid gas and the gaseous-phase dioxin, then the acid gas and the gaseous-phase dioxin enter the second-stage dry deacidification reactor through the first-stage bag-type dust collector and are sprayed into the adsorbent and the sprayed active carbon, the second-stage bag-type dust collector can effectively adsorb the residual acid gas and the gaseous-phase dioxin without the interference of the particulate matters such as the fly ash, meanwhile.
Through the design, the utility model provides a double-dry deacidification and dust removal system for hazardous waste incineration lines, which overcomes the defects of large occupied area, treatment of generated sewage and sludge and the like of the existing deacidification and dust removal system, removes the treatment process of the sewage and the sludge, and reduces the discharge of the sewage; the system has short process flow, centralized equipment arrangement and small system floor area, and simultaneously adopts the independently arranged bag-type dust remover, so that the influence of equipment failure and maintenance on the whole system is lower, and the system stability is superior to that of the traditional deacidification and dust removal system.
Drawings
FIG. 1 is a schematic view of a part of the structure of the present invention;
fig. 2 is a partial structural plan view of the present invention.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings.
As shown in fig. 1 and 2, a double-dry deacidification and dust removal system of a hazardous waste incineration line comprises a deacidification and dust removal system, wherein the deacidification and dust removal system comprises a quenching tower 1, a primary dry deacidification reactor 3, a primary bag-type dust remover 4, a secondary dry deacidification reactor 6 and a secondary bag-type dust remover 7; a smoke outlet of the quench tower is connected with an air inlet of a primary dry-type deacidification reactor, an air outlet of the primary dry-type deacidification reactor is connected with an air inlet of a primary bag-type dust remover, an air outlet of the primary bag-type dust remover is connected with an air inlet of a secondary dry-type deacidification reactor, and an air outlet of the secondary dry-type deacidification reactor is connected with an air inlet of a secondary bag-type dust remover; the air inlet of the primary dry deacidification reactor is provided with a first nozzle for spraying baking soda powder, the air inlet of the primary bag-type dust remover is provided with a second nozzle for spraying activated carbon powder, the air inlet of the secondary dry deacidification reactor is provided with a third nozzle for spraying baking soda powder, and the air inlet of the secondary bag-type dust remover is provided with a fourth nozzle for spraying activated carbon powder. Through the design, the utility model provides a double-dry deacidification and dust removal system for hazardous waste incineration lines, which overcomes the defects of large occupied area, treatment of generated sewage and sludge and the like of the existing deacidification and dust removal system, removes the treatment process of the sewage and the sludge, and reduces the discharge of the sewage; the system has short process flow, centralized equipment arrangement and small system floor area, and simultaneously adopts the independently arranged bag-type dust remover, so that the influence of equipment failure and maintenance on the whole system is lower, and the system stability is superior to that of the traditional deacidification and dust removal system.
The utility model is connected with a primary dry deacidification reactor, a primary cloth bag dust remover, a secondary dry deacidification reactor and a secondary cloth bag dust remover in series behind the quench tower; wherein alkaline adsorbent, i.e. baking soda powder, is sprayed into the inlets of the first and second dry deacidification reactors, and the adsorbent rapidly expands and decomposes into Na under the working condition temperature of 200 DEG C2 Co3 +H2 O+Co2Newly produced sodium carbonate Na2 Co3The reaction activity is high at the moment of generation, and the chemical reaction with the acidic pollutants in the smoke can be spontaneously carried out as follows:
Na2CO3+SO3=Na2SO4+CO2
Na2CO3+2HCl=2NaCl+H2O+CO2
Na2CO3+2HF=2NaF+H2O+CO2
active carbon powder is sprayed at the inlet of the first-stage bag-type dust collector and the second-stage bag-type dust collector, the adsorbent and the active carbon circulate between the second-stage bags, in the first-stage bag-type dust collector and the second-stage bag-type dust collector, the fly ash, the acid gas and the solid-phase dioxin attached to the fly ash and the solid-phase dioxin are removed by the first-stage bag-type dust collector, the first-stage bag-type dust collector does not completely remove part of the acid gas and the gaseous-phase dioxin, then the acid gas and the gaseous-phase dioxin enter the second-stage dry deacidification reactor through the first-stage bag-type dust collector and are sprayed into the adsorbent and the sprayed active carbon, the second-stage bag-type dust collector can effectively adsorb the residual acid gas and the gaseous-phase dioxin without the interference of the particulate matters such as the fly ash, meanwhile.
A first storage bin 2 for storing baking soda powder is arranged on one side of the primary dry-type deacidification reactor, a discharge port of the first storage bin is connected with an air inlet of a first fan through a pipeline, and an air outlet of the first fan is connected with a first nozzle through a pipeline; and a second storage bin 5 for storing baking soda powder is arranged on one side of the secondary dry-type deacidification reactor, a discharge port of the second storage bin is connected with an air inlet of a second fan through a pipeline, and an air outlet of the second fan is connected with a third nozzle through a pipeline. The first fan adopts one of a Roots fan and a centrifugal fan. The baking soda powder can be directly blown into the dry deacidification reactor through the fan, and then the baking soda powder can directly react with the flue gas. Similarly, a storage bin for storing activated carbon powder is arranged on one side of each of the primary bag-type dust collector and the secondary bag-type dust collector, and the activated carbon powder is blown into the bag-type dust collectors through a fan.
A first stirring rod is arranged in the first storage bin, and a second stirring rod is arranged in the second storage bin. The discharge hole of the first storage bin is arranged at the lower part of the first storage bin; the first stirring rod adopts a spiral rod, the spiral rod comprises a straight rod, a sheet-shaped bulge is arranged on the straight rod, and the sheet-shaped bulge is spirally arranged on the outer surface of the straight rod. A first screen is arranged at the discharge outlet of the first storage bin, and a second screen is arranged at the discharge outlet of the second storage bin. The first screen and the second screen are both made of stainless steel. The stirring rod is used for stirring the raw materials in the storage bin to prevent silting and blockage; a spiral rod-shaped stirring rod is adopted to push the raw materials in the storage bin to be discharged to a discharge port of the storage bin; and the raw material with larger particles is filtered by a screen mesh and can be crushed by matching with a stirring rod.
The primary bag-type dust collector and the secondary bag-type dust collector are both provided with a dust discharging device. The product of the double-dry deacidification and dust removal system is a large amount of salt, the salt is discharged from the bag-type dust remover device through the dust discharging device, and the purified air reaching the standard is discharged from a chimney through the secondary bag-type dust remover.
While the present invention has been described in detail with reference to the preferred embodiments thereof, it should be understood that the above description should not be taken as limiting the present invention. Numerous modifications and alterations to the present invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be limited only by the attached claims.

Claims (7)

1. A double-dry-method deacidification and dust removal system of a hazardous waste incineration line comprises a deacidification and dust removal system and is characterized in that the deacidification and dust removal system comprises a quench tower, a primary dry-type deacidification reactor, a primary bag-type dust remover, a secondary dry-type deacidification reactor and a secondary bag-type dust remover;
a smoke outlet of the quenching tower is connected with an air inlet of the primary dry-type deacidification reactor, an air outlet of the primary dry-type deacidification reactor is connected with an air inlet of the primary bag-type dust remover, an air outlet of the primary bag-type dust remover is connected with an air inlet of the secondary dry-type deacidification reactor, and an air outlet of the secondary dry-type deacidification reactor is connected with an air inlet of the secondary bag-type dust remover;
the air inlet department of one-level dry-type deacidification reactor ann has one and is used for spouting into the first nozzle of baking soda powder, the air inlet department of one-level sack cleaner ann has one and is used for spouting into the second nozzle of active carbon powder, the air inlet department of second grade dry-type deacidification reactor ann has one and is used for spouting into the third nozzle of baking soda powder, the air inlet department of second grade sack cleaner ann has one and is used for spouting into the fourth nozzle of active carbon powder.
2. The system for dual dry deacidification and dedusting of a hazardous waste incineration line as claimed in claim 1, wherein a first storage bin for storing baking soda powder is arranged at one side of the primary dry deacidification reactor, a discharge port of the first storage bin is connected with an air inlet of a first fan through a pipeline, and an air outlet of the first fan is connected with the first nozzle through a pipeline;
and a second storage bin for storing baking soda powder is arranged on one side of the secondary dry-type deacidification reactor, a discharge port of the second storage bin is connected with an air inlet of a second fan through a pipeline, and an air outlet of the second fan is connected with the third nozzle through a pipeline.
3. The double dry deacidification and dedusting system for the hazardous waste incineration line as claimed in claim 2, wherein the first fan is one of a roots fan and a centrifugal fan.
4. The dual dry deacidification and dedusting system of the hazardous waste incineration line as claimed in claim 2, wherein a first stirring rod is arranged in the first storage bin, and a second stirring rod is arranged in the second storage bin.
5. The double dry deacidification and dedusting system for the hazardous waste incineration line as claimed in claim 4, wherein the discharge hole of the first storage bin is arranged at the lower part of the first storage bin;
the first stirring rod is a spiral rod, the spiral rod comprises a straight rod, a sheet-shaped protrusion is arranged on the straight rod, and the sheet-shaped protrusion is spirally arranged on the outer surface of the straight rod.
6. The system for dual dry deacidification and dedusting of a hazardous waste incineration line as claimed in claim 2, wherein a first screen is installed at the discharge port of the first storage bin, and a second screen is installed at the discharge port of the second storage bin.
7. The system of claim 1, wherein the primary bag-type dust collector and the secondary bag-type dust collector are both provided with an ash discharging device.
CN201920083633.1U 2019-01-18 2019-01-18 Useless line two dry process deacidification dust pelletizing system that burns of danger Active CN209885570U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920083633.1U CN209885570U (en) 2019-01-18 2019-01-18 Useless line two dry process deacidification dust pelletizing system that burns of danger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920083633.1U CN209885570U (en) 2019-01-18 2019-01-18 Useless line two dry process deacidification dust pelletizing system that burns of danger

Publications (1)

Publication Number Publication Date
CN209885570U true CN209885570U (en) 2020-01-03

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Country Status (1)

Country Link
CN (1) CN209885570U (en)

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