CN108786408A - Thin float glass substrate production line denitrating flue gas boron removal dust removal integrated plant - Google Patents
Thin float glass substrate production line denitrating flue gas boron removal dust removal integrated plant Download PDFInfo
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- CN108786408A CN108786408A CN201810938425.5A CN201810938425A CN108786408A CN 108786408 A CN108786408 A CN 108786408A CN 201810938425 A CN201810938425 A CN 201810938425A CN 108786408 A CN108786408 A CN 108786408A
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- flue gas
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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
- B01D53/75—Multi-step processes
-
- 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
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
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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
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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
- B01D53/83—Solid phase processes with moving reactants
-
- 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
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
- B01D53/8631—Processes characterised by a specific device
-
- 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
- B01D53/86—Catalytic processes
- B01D53/90—Injecting reactants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2062—Ammonia
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/40—Alkaline earth metal or magnesium compounds
- B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/60—Inorganic bases or salts
- B01D2251/604—Hydroxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
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- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The present invention discloses thin float glass substrate production line denitrating flue gas boron removal dust removal integrated plant, portion is transported including lime storage, cold portion is converted in heat exchange, boron removal portion, ammonia spray portion, catalyst filter house and by-product collection portion, boron removal after flue gas is fully reacted into boron removal portion jointly with white lime, then denitration is carried out to the flue gas for mixing ammonium hydroxide by catalyst filter house, portion is transported by lime storage, cold portion is converted in heat exchange, boron removal portion, ammonia spray portion, the mutual cooperation of catalyst filter house and by-product collection portion, flue gas is set to realize boron removal, denitration, and it being capable of further purifying smoke using catalyst filter collector, the discharge of flue gas is set to meet discharge standard.
Description
Technical field
The present invention relates to flue gas of glass melting furnace to administer field, and specifically a kind of thin float glass substrate production line flue gas is de-
Nitre boron removal dust removal integrated plant.
Background technology
2017,《Flat glass industry atmosphere pollutants emission standards》（GB 26453-2011）Modification is single（Solicit meaning
See original text）Appearance, territorial development density is higher, environmental bearing capacity starts to weaken or atmospheric environment capacity is smaller, ecological ring
Border is fragile, is easy to happen serious atmospheric problem of environmental pollution and needs to take the area of special protection measure, should strictly control enterprise
The disposal of pollutants behavior of industry.And it is as follows to provide that the enterprise in above-mentioned area executes the special emission limit of atmosphere pollution：
Glass melter particulate matter limit value 20mg/m3, sulfur dioxide limit value 100mg/m3, nitrogen oxides limit value 400mg/m3。
Meanwhile in June, 2017,《Coal-burning power plant's minimum discharge smoke gas treatment engineering legislation（Exposure draft）》Hair
Cloth provides as follows coal-fired plant flue gas minimum discharge limitation：Under the conditions of benchmark oxygen content 6%, the dry cigarette of coal-burning power plant's standard state
Particulate matter, SO in gas2、NOxConcentration of emission is high 10 respectively, 35,50mg/m3。
In recent years, country receives environment protection emission concentration tight year by year, and glass industry will certainly be gradually carried out similar coal-fired electricity
The minimum discharge limit value of factory, and TFT-LCD thin float glasses base plate glass is as high-end glass, inevitable positive respective country
It calls, meets more stringent discharge standard.
Currently, glass industry and coal-burning power plant's denitration minimum discharge prevailing technology are SCR denitration, catalyst is positioned over instead
It answers in device, after seal approach, denitration is carried out to flue gas；And flue gas boron removal technology is then blank, national relevant emission standards
In also the concentration of emission of boron is not provided.The sack cleaner that the dedusting Main Basiss of flue gas are traditional is realized.Meanwhile at present
Total oxygen kiln flue gas emission form essentially first convert cold wind cooling after be discharged into again in subsequent system, increase nitrogen oxides
Initial concentration.
Invention content
The purpose of the present invention is to provide thin float glass substrate production line denitrating flue gas boron removal dust removal integrated plant,
The device can handle the nitrogen oxides generated in flue gas, diboron trioxide, while be removed to the flue dust in flue gas, make cigarette
Gas reaches discharge standard.
The technical solution adopted by the present invention to solve the technical problems is：
Thin float glass substrate production line denitrating flue gas boron removal dust removal integrated plant, including：
A, lime storage transports portion,
The lime storage portion of transporting includes white lime storage warehouse, and the first deduster is equipped at the top of white lime storage warehouse；White lime stores
Orlop portion is equipped with the first rotary valve, and the weighing cabin being sequentially communicated, screw conveyor, the are from top to bottom equipped with below the first rotary valve
Two rotary valves and gas-solid mixing storehouse；The entrance in gas-solid mixing storehouse is separately connected the outlet of conveying fan and the second rotary valve；
B, cold portion is converted in heat exchange,
Heat exchange converts cold portion and includes heat exchanger and convert air-cooler, and heat exchanger entrance connects smoke inlet pipe, heat exchanger exit connects cigarette
Gas escape pipe is converted air-cooler and is connected with and convert cold branch pipe, converts cold branch pipe and be connected with flue gas escape pipe；The outlet in gas-solid mixing storehouse
It is connected with flue gas escape pipe；
C, boron removal portion,
Boron removal portion includes dry method boron removal tower, and venturi accelerator, the entrance and flue gas of dry method boron removal tower are equipped in dry method boron removal tower
Escape pipe outlet is connected；
D, ammonia spray portion,
Ammonia spray portion includes ammonium hydroxide holding vessel, and ammonium hydroxide stores pot bottom and is equipped with ammonium hydroxide delivery pipe, on the pipeline of ammonium hydroxide delivery pipe
It is equipped with ammonium hydroxide delivery pump, shut-off valve, flowmeter, regulating valve and filter successively, the outlet of ammonium hydroxide delivery pipe is equipped with ammonia water spray gun；
E, catalyst filter house,
Catalyst filter house includes catalyst filter collector, and catalyst filter collector entrance is separately connected dedusting inlet pipe and removes with outlet
Dirt outlet pipe, the outlet of the entrance connection dry method boron removal tower of dedusting inlet pipe, dedusting outlet pipe connect air-introduced machine；
The ammonia water spray gun stretches into the pipeline of dedusting inlet pipe, and ammonium hydroxide is sprayed into dedusting inlet pipe；
F, by-product collection portion,
By-product collection portion includes Pneumatic ash conveying machine and by-product storage warehouse, Pneumatic ash conveying machine entrance and catalyst filter collector
Ash bucket outlet is connected, and the outlet of Pneumatic ash conveying machine is connected with by-product storage warehouse, and the top of by-product storage warehouse is equipped with the second dedusting
Device.
The beneficial effects of the invention are as follows：
One, portion is transported by lime storage, heat exchange is converted cold portion, boron removal portion, ammonia spray portion, catalyst filter house and by-product and collected
The mutual cooperation in portion makes flue gas realize boron removal, denitration, and using catalyst filter collector can further purifying smoke, make
The discharge of flue gas meets discharge standard；
Two, the flue gas being discharged through melting furnaces, the form directly to be cooled down by heat exchanger, 600 are down to by flue gas by 1000~1200 DEG C
DEG C, avoid the possibility for generating nitrogen oxides in original production process when directly converting cold wind for 1000~1200 DEG C, i.e., it is fully sharp
With the waste heat of flue gas, while reducing the production quantity of nitrogen oxides；
Three, flue gas is cooled to 300~350 DEG C by 600 DEG C through converting cold wind.Flue gas has avoided burning type nitrogen when converting cold wind for 600 DEG C
The generation temperature of oxide, will not cause the increase of nitrogen oxides；Meanwhile because combustion of natural gas generate product be carbon dioxide and
Water vapour, to having certain requirement into vapour content therein, on the one hand the purpose for converting cold wind drops catalyst filter collector
Low flue-gas temperature makes it meet the temperature window of catalyst filter collector denitration, on the other hand, dilutes the water vapour in former flue gas
Content makes it meet requirement of the catalyst filter collector to water content.
Four, using the dry method boron removal tower with venturi accelerator, the white lime of diboron trioxide and penetrating in flue gas
Fully reaction；
Five, after flue gas enters catalyst filter collector, solid powder state diboron trioxide and spray are condensed at 450 DEG C or less
The reaction product of the lime and lime and diboron trioxide that enter, catalyst filter element outer surface detach, meanwhile, nitrogen oxides with
NH3Denitration function is realized in fully reaction.
Six, through this integrated apparatus treated flue gas of glass melting furnace, particulate matter is less than 5mg/m3, nitrogen oxides limit value
50mg/m3, diboron trioxide can realize complete removing substantially.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples：
Fig. 1 is the structural schematic diagram of the present invention；
Fig. 2 is the enlarged diagram that lime storage of the present invention transports portion；
Fig. 3 is the enlarged diagram that cold portion is converted in present invention heat exchange；
Fig. 4 is the enlarged diagram in boron removal portion of the present invention；
Fig. 5 is the enlarged diagram in ammonia spray portion of the present invention；
Fig. 6 is the enlarged diagram of catalyst filter house of the present invention；
Fig. 7 is the enlarged diagram of by-product collection portion of the present invention.
Specific implementation mode
As shown in Figure 1, the present invention provides thin float glass substrate production line denitrating flue gas boron removal dust removal integrated plant,
Including：
A, lime storage transports portion,
In conjunction with shown in Fig. 2, the lime storage portion of transporting includes white lime storage warehouse 12, and 12 top of white lime storage warehouse is removed equipped with first
Dirt device 11；12 bottom of white lime storage warehouse is equipped with the first rotary valve 13, and 13 lower section of the first rotary valve is from top to bottom equipped with to be connected successively
Logical weighing cabin 14, screw conveyor 15, the second rotary valve 16 and gas-solid mixing storehouse 17；The entrance in gas-solid mixing storehouse 17 connects respectively
Connect the outlet of conveying fan 18 and the second rotary valve 16；
B, cold portion is converted in heat exchange,
In conjunction with shown in Fig. 3, heat exchange converts cold portion and includes heat exchanger 31 and convert air-cooler 32, and 31 entrance of heat exchanger connects smoke inlet pipe
33, the outlet of heat exchanger 31 connection flue gas escape pipe 34 is converted air-cooler 32 and is connected with and convert cold branch pipe 35, converts cold branch pipe 35 and go out with flue gas
Tracheae 34 is connected；The outlet in gas-solid mixing storehouse 17 is also connected with flue gas escape pipe 34；
C, boron removal portion,
In conjunction with shown in Fig. 4, boron removal portion includes dry method boron removal tower 51, and 51 are equipped with venturi accelerator 52, dry method in dry method boron removal tower
The entrance of boron removal tower 51 is connected with the outlet of flue gas escape pipe 34；
D, ammonia spray portion,
In conjunction with shown in Fig. 5, ammonia spray portion includes ammonium hydroxide holding vessel 21, and 21 bottom of ammonium hydroxide holding vessel is equipped with ammonium hydroxide delivery pipe 28,
Ammonium hydroxide delivery pump 22, shut-off valve 23, flowmeter 24, regulating valve 25 and filter are equipped on the pipeline of ammonium hydroxide delivery pipe 28 successively
26, the outlet of ammonium hydroxide delivery pipe 28 is equipped with ammonia water spray gun 27；
E, catalyst filter house,
In conjunction with shown in Fig. 6, catalyst filter house includes catalyst filter collector 61, and 61 entrance of catalyst filter collector is distinguished with outlet
Connect dedusting inlet pipe 62 and dedusting outlet pipe 63, the outlet of the entrance connection dry method boron removal tower 51 of dedusting inlet pipe 62, dedusting outlet pipe 63
Connect air-introduced machine 64；The ammonia water spray gun 27 stretches into the pipeline of dedusting inlet pipe 61, and ammonium hydroxide is sprayed into dedusting inlet pipe；
F, by-product collection portion,
In conjunction with shown in Fig. 7, by-product collection portion includes Pneumatic ash conveying machine 71 and by-product storage warehouse 72,71 entrance of Pneumatic ash conveying machine
It is connected with the outlet of the ash bucket of catalyst filter collector 61, the outlet of Pneumatic ash conveying machine 71 is connected with by-product storage warehouse 72, by-product
The top of storage warehouse 72 is equipped with the second deduster 73.
In use, white lime powder is sent into white lime storage warehouse 12, the first deduster 11 can be stored to white lime
It is dusted when charging in storehouse 12；Ammonium hydroxide is sent into ammonium hydroxide holding vessel 21；Open the first rotary valve 13, white lime powder is via weighing
Storehouse 14 enters screw conveyor 15 after weighing, and opens the second rotary valve 16, white lime powder enters gas-solid mixing storehouse 17, by defeated
Pressure fan 18 conveys air to gas-solid mixing storehouse 17, and white lime powder mixing air is made to enter flue gas escape pipe 34；It is arranged through melting furnaces
Flue gas is down to 600 DEG C by the form that the flue gas gone out is cooled down by heat exchanger 31 by 1000~1200 DEG C, and then flue gas is by 600 DEG C
It is blended into cold wind through converting air-cooler 32 and converting cold branch pipe 35, flue-gas temperature is down to 300~350 DEG C；Flue gas after cooling and white lime
Powder enters dry method boron removal tower 51 jointly, and the diboron trioxide in flue gas is fully reacted with the white lime of penetrating；Later flue gas into
Enter dedusting inlet pipe 62, ammonia water spray gun 27 sprays ammonium hydroxide in dedusting inlet pipe 62, subsequently into catalyst filter collector 61, flue gas into
After entering catalyst filter collector, solid powder state diboron trioxide and the lime and stone of penetrating are condensed at 450 DEG C or less
The reaction product of ash and diboron trioxide is detached in catalyst filter element outer surface, meanwhile, nitrogen oxides and NH3Fully reaction,
Realize denitration function；By catalyst filter collector 61, treated that flue gas is discharged by air-introduced machine 64；Meanwhile by-product is through touching
The ash bucket of matchmaker's filter collector 61 falls into Pneumatic ash conveying machine 71, is delivered to by Pneumatic ash conveying machine 71 and is recycled with by-product storage warehouse 72
It utilizes.
The above described is only a preferred embodiment of the present invention, being not intended to limit the present invention in any form；Appoint
What those skilled in the art, without departing from the scope of the technical proposal of the invention, all using the side of the disclosure above
Method and technology contents make many possible changes and modifications to technical solution of the present invention, or are revised as the equivalent reality of equivalent variations
Apply example.Therefore, every content without departing from technical solution of the present invention, according to the technical essence of the invention does above example
Any simple modification, equivalent replacement, equivalence changes and modification, still fall within technical solution of the present invention protection in the range of.
Claims (1)
1. thin float glass substrate production line denitrating flue gas boron removal dust removal integrated plant, which is characterized in that including：
A, lime storage transports portion,
The lime storage portion of transporting includes white lime storage warehouse, and the first deduster is equipped at the top of white lime storage warehouse；White lime stores
Orlop portion is equipped with the first rotary valve, and the weighing cabin being sequentially communicated, screw conveyor, the are from top to bottom equipped with below the first rotary valve
Two rotary valves and gas-solid mixing storehouse；The entrance in gas-solid mixing storehouse is separately connected the outlet of conveying fan and the second rotary valve；
B, cold portion is converted in heat exchange,
Heat exchange converts cold portion and includes heat exchanger and convert air-cooler, and heat exchanger entrance connects smoke inlet pipe, heat exchanger exit connects cigarette
Gas escape pipe is converted air-cooler and is connected with and convert cold branch pipe, converts cold branch pipe and be connected with flue gas escape pipe；The outlet in gas-solid mixing storehouse
It is connected with flue gas escape pipe；
C, boron removal portion,
Boron removal portion includes dry method boron removal tower, and venturi accelerator, the entrance and flue gas of dry method boron removal tower are equipped in dry method boron removal tower
Escape pipe outlet is connected；
D, ammonia spray portion,
Ammonia spray portion includes ammonium hydroxide holding vessel, and ammonium hydroxide stores pot bottom and is equipped with ammonium hydroxide delivery pipe, on the pipeline of ammonium hydroxide delivery pipe
It is equipped with ammonium hydroxide delivery pump, shut-off valve, flowmeter, regulating valve and filter successively, the outlet of ammonium hydroxide delivery pipe is equipped with ammonia water spray gun；
E, catalyst filter house,
Catalyst filter house includes catalyst filter collector, and catalyst filter collector entrance is separately connected dedusting inlet pipe and removes with outlet
Dirt outlet pipe, the outlet of the entrance connection dry method boron removal tower of dedusting inlet pipe, dedusting outlet pipe connect air-introduced machine；
The ammonia water spray gun stretches into the pipeline of dedusting inlet pipe, and ammonium hydroxide is sprayed into dedusting inlet pipe；
F, by-product collection portion,
By-product collection portion includes Pneumatic ash conveying machine and by-product storage warehouse, Pneumatic ash conveying machine entrance and catalyst filter collector
Ash bucket outlet is connected, and the outlet of Pneumatic ash conveying machine is connected with by-product storage warehouse, and the top of by-product storage warehouse is equipped with the second dedusting
Device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810938425.5A CN108786408A (en) | 2018-08-17 | 2018-08-17 | Thin float glass substrate production line denitrating flue gas boron removal dust removal integrated plant |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810938425.5A CN108786408A (en) | 2018-08-17 | 2018-08-17 | Thin float glass substrate production line denitrating flue gas boron removal dust removal integrated plant |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109364736A (en) * | 2018-12-15 | 2019-02-22 | 深圳市凯盛科技工程有限公司 | Electronic glass total oxygen melting furnaces production line flue gas collaboration processing integrated apparatus |
| CN111921355A (en) * | 2020-08-26 | 2020-11-13 | 深圳市凯盛科技工程有限公司 | Flue gas dust removal system and dust removal process for high borosilicate glass industrial melting furnace |
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| CN208771176U (en) * | 2018-08-17 | 2019-04-23 | 深圳市凯盛科技工程有限公司 | Thin float glass substrate production line denitrating flue gas boron removal dust removal integrated plant |
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|---|---|---|---|---|
| CN109364736A (en) * | 2018-12-15 | 2019-02-22 | 深圳市凯盛科技工程有限公司 | Electronic glass total oxygen melting furnaces production line flue gas collaboration processing integrated apparatus |
| CN111921355A (en) * | 2020-08-26 | 2020-11-13 | 深圳市凯盛科技工程有限公司 | Flue gas dust removal system and dust removal process for high borosilicate glass industrial melting furnace |
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