LU502474B1 - Device and method for recycling flue gas byproducts in glass or glass fiber industry - Google Patents
Device and method for recycling flue gas byproducts in glass or glass fiber industry Download PDFInfo
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- LU502474B1 LU502474B1 LU502474A LU502474A LU502474B1 LU 502474 B1 LU502474 B1 LU 502474B1 LU 502474 A LU502474 A LU 502474A LU 502474 A LU502474 A LU 502474A LU 502474 B1 LU502474 B1 LU 502474B1
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- flue gas
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- desulfurization
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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
- B01D53/50—Sulfur oxides
- B01D53/508—Sulfur oxides by treating the gases with solids
-
- 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
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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
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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
- B01D53/96—Regeneration, reactivation or recycling of reactants
-
- 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
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/302—Sulfur oxides
-
- 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
- B01D2258/0241—Other waste gases from glass manufacture plants
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- 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)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention relates to the technical field of flue gas treatment in the glass or glass fiber industry, and in particular, to a device and a method for recycling flue gas byproducts in the glass or glass fiber industry, comprising a desulfurizing tower, a ceramic filter, a draught fan and a chimney, wherein the flue gas of the glass or glass fiber industry is connected to the desulfurizing tower through a pipeline, a gas outlet of an upper end of the desulfurizing tower is connected to the ceramic filter through the pipeline, and a top end of the ceramic filter is connected to the chimney through the pipeline, and further comprises a byproduct bin, wherein a first pneumatic conveyor and a second pneumatic conveyor are connected to the byproduct bin through the pipeline, and the byproduct bin is connected with a byproduct raw material bin of a glass batching system.
Description
BL-5453 DEVICE AND METHOD FOR RECYCLING FLUE GAS BYPRODUCTS IN GLASS LV502474
[01] The invention relates to the technical field of flue gas treatment in the glass or glass fiber industry, and in particular, to a device and a method for recycling flue gas byproducts in the glass or glass fiber industry.
[02] With the global industry development, the atmospheric pollution problem becomes more and more serious, and thus various waste gas treatment technologies are researched, developed and globally promoted for application. The most typical industrial kiln flue gas desulfurization technology has many types, comprising wet desulfurization, which comprises a limestone-gypsum method, a magnesium method, an ammonia method, a dual-alkali method, a single-alkali method, etc., dry desulfurization and semidry desulfurization. All these methods aim to convert a harmful substance SO; in flue gas into another harmless substance (a sulfate byproduct) through a chemical reaction, thus removing SO; in flue gas. In a wet desulfurization process, the sulfate byproduct exists in waste water or gypsum seriflux, but the flue gas furthermore comprises other harmful and harmless gases and a lot of dust or a small amount of other heavy metal ions, etc., so that the sulfate byproduct generated thereby is not pure and contains many purities, and it is difficult for purification.
[03] Desulfurization facilities are gradually put into operation, and more and more desulfurization byproducts are produced thereby; therefore, the comprehensive utilization of the desulfurization byproducts for preventing secondary pollution has become an important project to be currently urgently researched. In the Several Opinions upon Acceleration of Flue Gas Desulfurization Industrialization Development for Thermal Power Plants issued by the National Development and Reform Commission, it is clearly pointed out that "Further develop the comprehensive utilization of flue gas desulfurization byproducts and promote the circular economy development. Organize the departments and scientific research institutions of construction materials, agriculture and forestry, power, etc. to deeply research the desulfurization byproducts, particularly, desulfurization gypsum, put forward guiding opinions upon various utilization ways, organize the implementation of the demonstration project for comprehensive utilization of desulfurization byproducts, and formulate compulsory measures and relevant preferential policies for comprehensive utilization of desulfurization byproducts at a proper time". In addition, various local departments also issued policy documents for strengthening comprehensive utilization of desulfurization byproducts, and pointed out that "In order to reduce secondary pollution, the desulfurization byproducts of coal-fired power plants must be comprehensively utilized. The limestone-gypsum desulfurization byproducts are applicable to construction materials or cement retarders; the byproduct of dry and semidry desulfurization facilities is calcium sulfite, it is unstable and must be treated by reliable measures to avoid the pollution from sulfur dioxide caused by secondary volatilization of calcium sulfite." At present, the desulfurization byproduct treatment methods are mainly as follows:
[04] I. Wet desulfurization byproduct treatment methods
[05] At present, the wet desulfurization mainly comprises the limestone-gypsum method, 1
BL-5453 the main component of the byproduct is gypsum, followed by a small amount of unreacted lime, calcium sulfite, impurities, etc. The chemical composition of the desulfurization gypsum mainly LU502474 comprises calcium sulphate dihydrate (CaSO4-2H>0), which is mainly applied in the following aspects:
[06] Construction materials: the construction materials comprises gypsum blocks, gypsum boards, gypsum plasters and gypsum putties.
[07] Cement retarders: silicate cement must be added with a proper amount of dihydrate gypsum to control CsA hydration in clinkers and thus adjust cement setting time, which can not only delay cement coagulation, but also improve cement strength. The desulfurization gypsum is mainly used in the case of natural gypsum lack or great gypsum demand. The application of the desulfurization gypsum in cements must meet certain physical and chemical requirements, and particularly, the desulfurization gypsum cannot obviously include calcium chloride, because calcium chloride can accelerate concrete setting and reinforcement corrosion.
[08] Agricultural application: the desulfurization gypsum is an excellent soil conditioner due to the air penetrability thereof.
[09] II Dry/semidry desulfurization byproduct treatment methods
[10] The dry/semidry flue gas desulfurization process mainly refers to such desulfurization processes as a spray drying method, a LIFAC (Limestone Injection into Furnace and Activation of Unreacted Calcium) technology, a CFB-FGD (Circulating Fluidized Bed for Flue Gas Desulfurization) technology and a GSA (Gas Suspension Absorption) technology. Since calcium-based absorbents are used for these desulfurization processes, the byproducts have similar chemical compositions; the byproducts generated by these processes are commonly called desulfurization residues. The desulfurization residues comprise such components as calcium sulfite, calcium sulfate, coal ash and unused calcium-based absorbents, wherein calcium sulfite has a large ratio; compared with wet desulphurization residues, the dry/semidry desulphurization residues have a higher amount of coal ash, accompanied with a higher ratio of microelements. The desulfurization residues are in the physical form of dry powder with a water content of 1-3%. At present, the desulfurization residues produced by the dry and semidry processes are usually discarded; for example, they are backfilled into waste mine pits and stacked in special discarding places.
[11] For solving the above-mentioned technological defects, the invention aims to provide a device and a method for recycling flue gas byproducts in the glass or glass fiber industry, which can recycle desulfurization byproducts so as to improve environment protection performance.
[12] To achieve this objective, the device for recycling flue gas byproducts in the glass or glass fiber industry, designed by the invention, comprises a desulfurizing tower, a ceramic filter, a draught fan and a chimney, wherein the flue gas of the glass or glass fiber industry is connected to the desulfurizing tower through a pipeline, a gas outlet of an upper end of the desulfurizing tower is connected to the ceramic filter through the pipeline, a top end of the ceramic filter is connected to the chimney through the pipeline, the draught fan is provided on the pipeline between the ceramic filter and the chimney, a first ash bucket of a lower end of the desulfurizing tower is connected to a first pneumatic conveyor, and a second ash bucket of a lower end of the 2
BL-5453 ceramic filter is connected with a second pneumatic conveyor, and further comprises a byproduct bin, wherein the first pneumatic conveyor and the second pneumatic conveyor are LU502474 connected to the byproduct bin through the pipeline, an exit of the byproduct bin is successively connected with a measuring bin and a third pneumatic conveyor, and the third pneumatic conveyor is connected to a byproduct raw material bin of a glass batching system through the pipeline.
[13] A method for recycling flue gas byproducts in the glass or glass fiber industry by the device, comprises the following steps:
[14] Firstly, the flue gas of the glass or glass fiber industry is introduced into the desulfurizing tower, a desulfurizer is sprayed into the desulfurizing tower and mixed with the flue gas to generate a desulfurization byproduct through a reaction, and the desulfurization byproduct is discharged from the first ash bucket and conveyed to the byproduct bin through the first pneumatic conveyor;
[15] Then, the flue gas enters the ceramic filter through the pipeline after the reaction in the desulfurizing tower, the desulfurizer is sprayed into a gas inlet chamber of the ceramic filter, and unreacted SO; in the flue gas reacts with the desulfurizer to generate the desulfurization byproduct; the desulfurization byproduct, unreacted desulfurizer and dust in the flue gas are filtered by the ceramic filter; the filtered-out substances enter the second ash bucket and are conveyed to the byproduct bin through the second pneumatic conveyor, and the filtered flue gas is conveyed to the chimney after passing the draught fan and is subsequently charged;
[16] Finally, the desulfurization byproduct in the byproduct bin is weighed by the measuring bin and subsequently conveyed to the byproduct raw material bin of the glass matching system through the third pneumatic conveyor to be prepared into a glass batch together with other glass raw materials, thus recycling the desulfurization byproduct.
[17] Therein, the desulfurizer is a calcium-based desulfurizer.
[18] The device and method aim at the treatment of dry/semidry flue gas desulfurization byproducts, and the flue gas is kiln gas in the glass industry or the glass fiber industry.
[19] In the glass industry and the glass fiber industry, the kiln flue gas is produced by air combustion or pure oxygen combustion, and a fuel is usually a clean fuel, namely natural gas; the dust in the flue gas is almost produced by the flying and volatilization of the glass raw materials in the kiln, so that the dust in the flue gas is almost the glass raw materials.
[20] The desulfurizer in the invention is the calcium-based desulfurizer, and the desulfurization byproduct comprises such components as calcium sulfite, calcium sulfate, unreacted calcium-based desulfurizer, and a small amount of glass raw material dust volatilized from the kiln.
[21] The desulfurization byproduct in the invention can be decomposed into CaO and various gases at high temperature. The gases are discharged from the flue gas; CaO is a glass network modifier and mainly acts as a stabilizer in the glass for improving the chemical stability and mechanical strength of the glass, and is an indispensable part of glass raw materials, so that the desulfurization byproduct can replace the limestone in the glass raw materials, and is mixed into the glass batch proportionally according to a glass formula to achieve the recycling objective.
3
BL-5453
[22] The desulfurization byproduct in the invention is produced in the desulfurizing tower and the ceramic filter, and discharged from lower outlets of respective ash buckets. LU502474
[23] According to the device and method for recycling flue gas byproducts in the glass or glass fiber industry, the desulfurization byproduct is conveyed to the byproduct bin for storage through the first pneumatic conveyor and the second pneumatic conveyor at an outlet of the first ash bucket of the lower part of the desulfurizing tower and an outlet of the second bucket of the lower part of the ceramic filter, respectively. Then, the desulfurization byproduct is weighed and subsequently conveyed to the byproduct raw material bin of the glass batching system through the third pneumatic conveyor; afterwards, the desulfurization byproduct is prepared into the glass batch uniformly according to the glass formula and conveyed to the kiln head bin, so as to be finally conveyed into the kiln and melted into glass.
[24] Therein, the first pneumatic conveyor, the second pneumatic conveyor and the third pneumatic conveyor are common mechanisms in the industry, and the structures thereof belong to the prior art.
[25] FIG. 1 is a device structure diagram according to the invention;
[26] FIG. 2 is a device structure diagram of a desulfurizing tower and a ceramic filter according to the invention;
[27] FIG. 3 is a device structure diagram of a byproduct bin and a glass batching system according to the invention.
[28] The following further describes the invention with reference to embodiments and accompanying drawings. Embodiment 1:
[29] As shown in FIGs. 1, 2 and 3, a device for recycling flue gas byproducts in the glass or glass fiber industry, described in an embodiment of the invention, comprises a desulfurizing tower 1, a ceramic filter 2, a draught fan 7 and a chimney 8, wherein the flue gas of the glass or glass fiber industry is connected to the desulfurizing tower 1 through a pipeline, a gas outlet of an upper end of the desulfurizing tower 1 is connected to the ceramic filter 2 through the pipeline, a top end of the ceramic filter 2 is connected to the chimney 8 through the pipeline, the draught fan 7 is provided on the pipeline between the ceramic filter 2 and the chimney 8, a first ash bucket 3 of a lower end of the desulfurizing tower 1 is connected to a first pneumatic conveyor 5, and a second ash bucket 4 of a lower end of the ceramic filter 2 is connected with a second pneumatic conveyor 6, and further comprises a byproduct bin 9, wherein the first pneumatic conveyor 5 and the second pneumatic conveyor 6 are connected to the byproduct bin 9 through the pipeline, an exit of the byproduct bin 9 is successively connected with a measuring bin 10 and a third pneumatic conveyor 11, and the third pneumatic conveyor 11 is connected to a byproduct raw material bin 13 of a glass batching system 12 through the pipeline.
[30] A method for recycling flue gas byproducts in the glass or glass fiber industry by the device, comprises the following steps: 4
BL-5453
[31] Firstly, the flue gas of the glass or glass fiber industry is introduced into the desulfurizing tower 1, a desulfurizer is sprayed into the desulfurizing tower 1 and mixed with LU502474 the flue gas to generate a desulfurization byproduct through a reaction, and the desulfurization byproduct is discharged from the first ash bucket 3 and conveyed to the byproduct bin 9 through the first pneumatic conveyor 5;
[32] Then, the flue gas enters the ceramic filter 2 through the pipeline after the reaction in the desulfurizing tower 1, the desulfurizer is sprayed into a gas inlet chamber of the ceramic filter 2, and unreacted SO; in the flue gas reacts with the desulfurizer to generate the desulfurization byproduct; the desulfurization byproduct, unreacted desulfurizer and dust in the flue gas are filtered by the ceramic filter 2; the filtered-out substances enter the second ash bucket 4 and are conveyed to the byproduct bin 9 through the second pneumatic conveyor 6, and the filtered flue gas is conveyed to the chimney 8 after passing the draught fan 7 and is subsequently charged;
[33] Finally, the desulfurization byproduct in the byproduct bin 9 is weighed by the measuring bin 10 and subsequently conveyed to the byproduct raw material bin 13 of the glass matching system 12 through the third pneumatic conveyor 11 to be prepared into a glass batch together with other glass raw materials, thus recycling the desulfurization byproduct.
[34] Therein, the desulfurizer is a calcium-based desulfurizer.
Claims (3)
1. A device for recycling flue gas byproducts in the glass or glass fiber industry, comprising a desulfurizing tower, a ceramic filter, a draught fan and a chimney, wherein the flue gas of the glass or glass fiber industry is connected to the desulfurizing tower through a pipeline, a gas outlet of an upper end of the desulfurizing tower is connected to the ceramic filter through the pipeline, a top end of the ceramic filter is connected to the chimney through the pipeline, the draught fan is provided on the pipeline between the ceramic filter and the chimney, a first ash bucket of a lower end of the desulfurizing tower is connected to a first pneumatic conveyor, and a second ash bucket of a lower end of the ceramic filter is connected with a second pneumatic conveyor, and further comprises a byproduct bin, wherein the first pneumatic conveyor and the second pneumatic conveyor are connected to the byproduct bin through the pipeline, an exit of the byproduct bin is successively connected with a measuring bin and a third pneumatic conveyor, and the third pneumatic conveyor is connected to a byproduct raw material bin of a glass batching system through the pipeline.
2. A method for recycling flue gas byproducts in the glass or glass fiber industry by the device according to claim 1, comprising the following steps: Firstly, the flue gas of the glass or glass fiber industry is introduced into the desulfurizing tower, a desulfurizer is sprayed into the desulfurizing tower and mixed with the flue gas to generate a desulfurization byproduct through a reaction, and the desulfurization byproduct is discharged from the first ash bucket and conveyed to the byproduct bin through the first pneumatic conveyor; Then, the flue gas enters the ceramic filter through the pipeline after the reaction in the desulfurizing tower, the desulfurizer is sprayed into a gas inlet chamber of the ceramic filter, and unreacted SO; in the flue gas reacts with the desulfurizer to generate the desulfurization byproduct; the desulfurization byproduct, unreacted desulfurizer and dust in the flue gas are filtered by the ceramic filter; the filtered-out substances enter the second ash bucket and are conveyed to the byproduct bin through the second pneumatic conveyor, and the filtered flue gas is conveyed to the chimney after passing the draught fan and is subsequently charged; Finally, the desulfurization byproduct in the byproduct bin is weighed by the measuring bin and subsequently conveyed to the byproduct raw material bin of the glass matching system through the third pneumatic conveyor to be prepared into a glass batch together with other glass raw materials, thus recycling the desulfurization byproduct.
3. The method for recycling flue gas byproducts in the glass or glass fiber industry by the device according to claim 2, wherein the desulfurizer is a calcium-based desulfurizer.
6
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011252490.6A CN112354353A (en) | 2020-11-11 | 2020-11-11 | Device and method for recycling flue gas by-products in glass or glass fiber industry |
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| Publication Number | Publication Date |
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| LU502474B1 true LU502474B1 (en) | 2022-11-08 |
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| LU502474A LU502474B1 (en) | 2020-11-11 | 2021-10-25 | Device and method for recycling flue gas byproducts in glass or glass fiber industry |
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|---|---|
| CN (1) | CN112354353A (en) |
| LU (1) | LU502474B1 (en) |
| WO (1) | WO2022100420A1 (en) |
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| CN112354353A (en) * | 2020-11-11 | 2021-02-12 | 浙江致远环境科技有限公司 | Device and method for recycling flue gas by-products in glass or glass fiber industry |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55162333A (en) * | 1979-06-01 | 1980-12-17 | Kawasaki Heavy Ind Ltd | Treating method for exhaust gas from glass melting furnace |
| KR101563079B1 (en) * | 2014-02-04 | 2015-10-30 | 한국남부발전 주식회사 | Flue gas desulfurizer for thermoelectric power plant |
| CN207667445U (en) * | 2017-12-21 | 2018-07-31 | 桐乡市致远环保科技有限公司 | A kind of waste gas of industrial kiln and furnace processing integration apparatus |
| CN110104670A (en) * | 2019-06-03 | 2019-08-09 | 中建材环保研究院（江苏）有限公司 | A kind of desulfurizing byproduct effective utilization system and method |
| CN210699488U (en) * | 2019-08-02 | 2020-06-09 | 北京济元紫能环境工程有限公司 | Full-green clean production process equipment for glass kiln |
| CN112354353A (en) * | 2020-11-11 | 2021-02-12 | 浙江致远环境科技有限公司 | Device and method for recycling flue gas by-products in glass or glass fiber industry |
| CN213761263U (en) * | 2020-11-11 | 2021-07-23 | 浙江致远环境科技有限公司 | Recycling device for flue gas by-products in glass or glass fiber industry |
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2020
- 2020-11-11 CN CN202011252490.6A patent/CN112354353A/en active Pending
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2021
- 2021-10-25 WO PCT/CN2021/126025 patent/WO2022100420A1/en active Application Filing
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| CN112354353A (en) | 2021-02-12 |
| WO2022100420A1 (en) | 2022-05-19 |
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