CN105797529B - A kind of fire coal boiler fume three-stage processing method - Google Patents
A kind of fire coal boiler fume three-stage processing method Download PDFInfo
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- CN105797529B CN105797529B CN201610347242.7A CN201610347242A CN105797529B CN 105797529 B CN105797529 B CN 105797529B CN 201610347242 A CN201610347242 A CN 201610347242A CN 105797529 B CN105797529 B CN 105797529B
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- dust
- cyclone dust
- fire coal
- coal boiler
- dust collectors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/81—Solid phase processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/3416—Regenerating or reactivating of sorbents or filter aids comprising free carbon, e.g. activated carbon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/345—Regenerating or reactivating using a particular desorbing compound or mixture
- B01J20/3475—Regenerating or reactivating using a particular desorbing compound or mixture in the liquid phase
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Abstract
The invention discloses a kind of fire coal boiler fume three-stage processing methods, fume treatment process is divided into three sections by the fire coal boiler fume three-stage processing method, first part is cyclone dust collectors, and second part is electric bag integrated dust collector, and Part III is the triple processors of sulphur nitrogen.The present invention is directed to emission problem, using the segmented treatment method of fire coal boiler fume.The processing of system has been carried out to dust, sulfide and oxycarbide respectively.Dust, sulfide and the nitride of exhaust emissions are better than national standard, or even reach EU criteria.The present invention preferably with autocratic three kinds of smoke processing systems, divide three sections to handle dust, sulfide and oxide, since these three processing systems respectively have effects that uniqueness, it is effectively supplemented between each other, form the high smoke processing system of cost performance, the content's index of dust content, sulfide and oxide in its tail gas is better than state quota, reaches European Union's index.
Description
Technical field
The invention belongs to coal-burning boiler technical field more particularly to a kind of fire coal boiler fume three-stage processing methods.
Background technique
Coal-burning boiler especially Small Coal-fired Boilers basically there exist two large problems, first is that the thermal energy conversion rate of coal compared with
Low, the residual carbon content in coal ash reaches 8% or more, and some is up to 12%.Second is that dust, sulfide and nitride in flue gas
Discharge generally severely exceeds.Sulfide and nitride processing in existing boiler smoke, method are usually high-temperature catalytic reduction,
Since temperature can drop to 180 DEG C hereinafter, low-temperature catalyzed reduction can only be carried out to boiler smoke after bag-type dust, effect significantly under
Drop, it is necessary to increase investment and cost can be only achieved the index of emission reduction.Existing boiler smoke processing mode has cyclone dust removal, electrostatic
Dedusting, bag-type dust and water film dedusting etc., various dust removal methods are advantageous, also there is its disadvantage.And lack a kind of method of system,
The characteristics of for boiler smoke, forms the better dedusting method of a set of cost performance.
The shortcomings that existing fire coal boiler fume processing method, is: not organically by dust processing and desulfurization removing nitric processing
It links together, lacks a kind of high-temperature dust filtration system that cost performance is high, implement the high temperature of efficient sulfide and nitride
Reduction catalysts, to make coal-burning boiler especially middle and small burn coal boiler at the main source of China's atmosphere pollution.
Summary of the invention
The purpose of the present invention is to provide a kind of fire coal boiler fume three-stage processing methods, it is intended to solve existing fire coal
Boiler smoke processing method does not link together dust processing and desulfurization removing nitric processing organically, lacks a kind of cost performance
The problem of high-temperature dust filtration system of high, high heat utilization rate.
The invention is realized in this way a kind of fire coal boiler fume three-stage processing method, the fire coal boiler fume three
Fume treatment process is divided into three sections by segmentation processing method, and the flue dust that coal generates that will burn passes sequentially through cyclone dust collector, electricity
The flue gas that bag dust collector and sulphur nitrogen deduster generate fire coal is handled.First part is cyclone dust collectors, including the first order
Cyclone dust collectors and second level cyclone dust collectors；Dust air-flow inputs first order cyclone dust collectors, single stage of dust collection by air inlet
Case is 10 microns of disposal boxes, and the upper end of level-one cone is connected to by level-one exhaust pipe with reducer pipe, the end of reducer pipe and second
The air intake vent connection of grade cyclone dust collectors, second level disposal box are 2.5 microns of disposal boxes.Second part is electric bag integrated dust collector,
Including tubular dirt pocket, it is equipped with floral disc in dirt pocket, is hung on several dust settling pockets under floral disc and is electrically connected respectively with electrostatic generator
It connects, Part III is the triple processors of sulphur nitrogen, and high-temp waste gas passes sequentially through downwards the first filled layer, the second filling from exhaust gas entrance
It is discharged after layer and adsorption layer from gas vent；First filled layer is the reductant layer for reduced sulphur compound；Second filled layer is
Reductant layer for reduction nitridation object.
Further, the both ends formula cyclone dust collectors are according to dust size greater than 10um and less than the particle characteristics of 10um.
Further, the electric bag integrated dust collector manufactures sack cleaner and electrostatic precipitator with metallic filtering film.
Further, it is successively arranged the first filled layer, the second filled layer from top to bottom in the triple processor cylinders of the sulphur nitrogen
And adsorption layer；First filled layer is the reductant layer for reduced sulphur compound；Second filled layer is going back for reduction nitridation object
Former oxidant layer, the second filled layer are adsorbent material Activated Carbon For Desulphurization From Furfural Residue.
Further, the Activated Carbon For Desulphurization From Furfural Residue regeneration activating method is to carry out pickling deliming to activated carbon product, takes hydrochloric acid
Be 1h for pickling solution active carbon soaking time, in acid cleaning process, alkaline matter is removed, metal ion be dissolved, again with
The ratio of binder 7:3 by volume is mixed, by the direct extrusion forming of mixture.Then it is carbonized at 500 DEG C, charcoal
The process of change is divided into dehydration and two stages of pyrolysis, and partial pore is destructurized, aperture increases, specific surface area and absorption property
Decline.
Fire coal boiler fume three-stage processing method provided by the invention, for emission problem, using fire coal boiler fume
Segmented treatment method.The processing of system has been carried out to dust, sulfide and oxycarbide respectively.The dust of exhaust emissions,
Sulfide and nitride are better than national standard, or even reach EU criteria.The present invention preferably with autocratic three kinds of fume treatment systems
System divides three sections and handles dust, sulfide and oxide, since these three processing systems respectively have effects that uniqueness,
It is effectively supplemented between each other, forms the high smoke processing system of cost performance, dust content, sulfide in tail gas
It is better than state quota with the content's index of oxide, reaches European Union's index.
Detailed description of the invention
Fig. 1 is fire coal boiler fume three-stage processing device structure diagram provided in an embodiment of the present invention.
In figure: 1, first order cyclone dust collectors；2, second level cyclone dust collectors；3, dust settling pocket；4, dust storage chamber；5, it first fills out
Fill layer；6, the second filled layer；7, adsorption layer.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Application principle of the invention is explained in detail with reference to the accompanying drawing.
As shown in Figure 1, fume treatment process is divided into three sections by the fire coal boiler fume three-stage processing method, will burn
The flue dust that coal generates passes sequentially through at the flue gas that cyclone dust collector, electrostatic fabric filter and sulphur nitrogen deduster generate fire coal
Reason.First part is cyclone dust collectors, including first order cyclone dust collectors and second level cyclone dust collectors；Dust air-flow by into
Air port inputs first order cyclone dust collectors, and single stage of dust collection case is 10 microns of disposal boxes, and the upper end of level-one cone is vented by level-one
Pipe is connected to reducer pipe, and the end of reducer pipe is connected to the air intake vent of second level cyclone dust collectors, and second level disposal box is 2.5 microns
Disposal box.Second part is electric bag integrated dust collector, including tubular dirt pocket, and floral disc is equipped in dirt pocket, is hung under floral disc
Several dust settling pockets are electrically connected with electrostatic generator respectively, and Part III is the triple processors of sulphur nitrogen, and high-temp waste gas enters from exhaust gas
Mouth is discharged after passing sequentially through the first filled layer 5, the second filled layer 6 and adsorption layer 7 downwards from gas vent；First filled layer 5 is
Reductant layer for reduced sulphur compound；Second filled layer 6 is the reductant layer for reduction nitridation object.
The Activated Carbon For Desulphurization From Furfural Residue regeneration activating method is to carry out pickling deliming to activated carbon product, and taking hydrochloric acid is pickling solution
Active carbon soaking time is 1h, and in acid cleaning process, alkaline matter is removed, and metal ion is dissolved, and is pressed again with binder
The ratio of volume ratio 7:3 is mixed, by the direct extrusion forming of mixture.Then it is carbonized at 500 DEG C, the process of charing
It is divided into dehydration and two stages of pyrolysis, partial pore is destructurized, aperture increases, specific surface area and absorption property decline.
Fume treatment process is divided into three sections, first by the fire coal boiler fume three-stage processing method of the embodiment of the present invention
Dividing is cyclone dust collectors, and second part is electric bag integrated dust collector, and Part III is the triple processors of sulphur nitrogen.
Both ends formula cyclone dust collectors are greater than 10um according to dust size and less than the particle characteristics of 10um, design two sections of whirlwind
Dedusting, first segment are directed to the particle greater than 10um, and second segment is directed to the particle less than 10um.
Electric bag integrated dust collector is to complete the function of electrostatic precipitation and bag-type dusting in set of device, both with metal mistake
Filter membrane manufactures sack cleaner and electrostatic precipitator.
Metal film is according to manufacture film filter bag claimed below:
(1) the alloying component iron of metal film bag, aluminium etc.
(2) the boiler pressure 1.6kpa of metal film bag
(3) the filtering air quantity 15000m3/h of metal film bag
(4) dimensions 0.3mm, 0.5mm, 0.6mm, 1mm, 1.5mm, 2mm, 3m, 5mm of metal film bag
Metal film is according to manufacture electric precipitator claimed below:
(1) metal film bag quantity
(2) metal film bag voltage
(3) metal film bag electric current
(4) metal film bag
The triple processors of sulphur nitrogen will realize sulfide and the reduction of nitride activated carbon catalysis and active carbon in a device
The double action of absorption.
The absorbent charcoal material of the triple processors of sulphur nitrogen is that its dosage of Activated Carbon For Desulphurization From Furfural Residue is (tolerance per hour).
Activated Carbon For Desulphurization From Furfural Residue carries out regeneration activating in the following manner:
(1) regeneration activating time 1h
(2) 400 DEG C of regeneration activating temperature
(3) regeneration activating number (this must see specific testing result, and universal 20 times out of question)
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (1)
1. a kind of fire coal boiler fume three-stage processing method, which is characterized in that fire coal boiler fume three-stage processing side
Fume treatment process is divided into three sections by method, and first part is cyclone dust collectors, and second part is electric bag integrated dust collector, third portion
Dividing is the triple processors of sulphur nitrogen；
The cyclone dust collectors include first order cyclone dust collectors and second level cyclone dust collectors；Dust air-flow is defeated by air inlet
Enter first order cyclone dust collectors, single stage of dust collection case is 10 microns of disposal boxes, and the upper end of level-one cone by level-one exhaust pipe and becomes
The end of diameter Guan Liantong, reducer pipe are connected to the air intake vent of second level cyclone dust collectors, and second level disposal box is 2.5 microns of dusts
Case；
The electricity bag integrated dust collector, including tubular dirt pocket, dirt pocket is interior to be equipped with floral disc, is hung on several dedustings under floral disc
Bag is electrically connected with electrostatic generator respectively；
Part III is the triple processors of sulphur nitrogen, and high-temp waste gas passes sequentially through downwards the first filled layer from exhaust gas entrance, second fills out
It is discharged after filling layer and adsorption layer from gas vent；First filled layer is the reductant layer for reduced sulphur compound；Second filled layer
For the reductant layer for reduction nitridation object；Second filled layer is adsorbent material Activated Carbon For Desulphurization From Furfural Residue；
Both ends formula cyclone dust collectors are divided into two sections, and first segment is directed to the particle greater than 10um, and second segment is directed to less than 10um
Grain；
The electricity bag integrated dust collector manufactures sack cleaner and electrostatic precipitator with metallic filtering film；
The Activated Carbon For Desulphurization From Furfural Residue regeneration activating method is to carry out pickling deliming to activated carbon product, and taking hydrochloric acid is pickling solution activity
Charcoal soaking time is 1h, and in acid cleaning process, alkaline matter is removed, and metal ion is dissolved, and presses volume with binder again
Ratio than 7:3 is mixed, by the direct extrusion forming of mixture；Then it is carbonized at 500 DEG C, the process of charing is divided into
Dehydration and two stages of pyrolysis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610347242.7A CN105797529B (en) | 2016-05-23 | 2016-05-23 | A kind of fire coal boiler fume three-stage processing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610347242.7A CN105797529B (en) | 2016-05-23 | 2016-05-23 | A kind of fire coal boiler fume three-stage processing method |
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| CN105797529A CN105797529A (en) | 2016-07-27 |
| CN105797529B true CN105797529B (en) | 2019-03-08 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2068920A (en) * | 1980-02-13 | 1981-08-19 | Alcan Res & Dev | Dry-scrubbing fluoride- containing gases |
| WO1998013128A1 (en) * | 1996-09-28 | 1998-04-02 | Volkswagen Aktiengesellschaft | PROCESS FOR REMOVING NOx FROM EXHAUST FUMES |
| KR100260743B1 (en) * | 1997-12-12 | 2000-07-01 | 송길홍 | Exhaust gas purifier of an incinerator |
| CN202141064U (en) * | 2011-02-28 | 2012-02-08 | 邹炎 | System compositing purification of smoke and quality improvement of lignite |
| CN103212292A (en) * | 2013-04-12 | 2013-07-24 | 陕西华祥能源科技集团有限公司 | Integrated flue gas dust removal desulfurization and denitrification device |
| CN205055818U (en) * | 2015-10-19 | 2016-03-02 | 张仲伟 | Adsorption desulfurization and denitration device |
-
2016
- 2016-05-23 CN CN201610347242.7A patent/CN105797529B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2068920A (en) * | 1980-02-13 | 1981-08-19 | Alcan Res & Dev | Dry-scrubbing fluoride- containing gases |
| WO1998013128A1 (en) * | 1996-09-28 | 1998-04-02 | Volkswagen Aktiengesellschaft | PROCESS FOR REMOVING NOx FROM EXHAUST FUMES |
| KR100260743B1 (en) * | 1997-12-12 | 2000-07-01 | 송길홍 | Exhaust gas purifier of an incinerator |
| CN202141064U (en) * | 2011-02-28 | 2012-02-08 | 邹炎 | System compositing purification of smoke and quality improvement of lignite |
| CN103212292A (en) * | 2013-04-12 | 2013-07-24 | 陕西华祥能源科技集团有限公司 | Integrated flue gas dust removal desulfurization and denitrification device |
| CN205055818U (en) * | 2015-10-19 | 2016-03-02 | 张仲伟 | Adsorption desulfurization and denitration device |
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| Publication number | Publication date |
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| CN105797529A (en) | 2016-07-27 |
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