CN111111437A - Multistage denitration ultralow-emission method in heat storage chamber of longitudinal flame energy-saving environment-friendly glass kiln, heat storage chamber and application thereof - Google Patents
Multistage denitration ultralow-emission method in heat storage chamber of longitudinal flame energy-saving environment-friendly glass kiln, heat storage chamber and application thereof Download PDFInfo
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- 238000005338 heat storage Methods 0.000 title claims abstract description 82
- 239000011521 glass Substances 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000003054 catalyst Substances 0.000 claims abstract description 85
- 230000009467 reduction Effects 0.000 claims abstract description 81
- 239000005329 float glass Substances 0.000 claims abstract description 5
- 210000000481 breast Anatomy 0.000 claims abstract description 3
- 230000001174 ascending effect Effects 0.000 claims description 95
- 238000006722 reduction reaction Methods 0.000 claims description 79
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 29
- 239000003546 flue gas Substances 0.000 claims description 29
- 238000010531 catalytic reduction reaction Methods 0.000 claims description 17
- 229910002651 NO3 Inorganic materials 0.000 claims description 14
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 14
- 230000003197 catalytic effect Effects 0.000 claims description 5
- 230000001172 regenerating effect Effects 0.000 claims description 4
- 210000000779 thoracic wall Anatomy 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 15
- 238000003912 environmental pollution Methods 0.000 abstract description 7
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 238000005192 partition Methods 0.000 description 56
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 32
- 239000003638 chemical reducing agent Substances 0.000 description 8
- 238000005457 optimization Methods 0.000 description 7
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 4
- 235000011114 ammonium hydroxide Nutrition 0.000 description 4
- 239000004202 carbamide Substances 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N urea group Chemical group NC(=O)N XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 4
- 238000003915 air pollution Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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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
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
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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
- B01D53/56—Nitrogen oxides
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
- C03B5/235—Heating the glass
- C03B5/237—Regenerators or recuperators specially adapted for glass-melting furnaces
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- 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
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- 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
- B01D2251/2067—Urea
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
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Abstract
The invention relates to a multi-stage denitration ultralow-emission method in a heat storage chamber of a longitudinal flame energy-saving environment-friendly glass kiln, the heat storage chamber and application thereof. The regenerators are one or more groups of multi-channel regenerators which are respectively communicated with small furnace channels on the breast walls at the two longitudinal ends of the longitudinal flame energy-saving environment-friendly glass kiln, and the regenerators are provided with SNCR first-stage high-temperature denitration devices and SCR second-stage catalyst reduction medium-temperature denitration devices; the tail end of the regenerator is communicated with a catalyst reduction low-temperature denitration system. The application is applied to a longitudinal reversing flame energy-saving environment-friendly float glass kiln. Has the advantages of reducing environmental pollution, small investment, low operation cost and obvious economic, social and environmental protection benefits.
Description
Technical Field
The invention relates to a glass kiln, in particular to a multistage denitration ultralow emission method in a heat storage chamber of a longitudinal flame energy-saving environment-friendly glass kiln, and the heat storage chamber and application thereof.
Background
With the development of modern industrial production, air pollution becomes a problem of great concern, and the problem of air pollution by nitrogen oxides NOx has been gradually emphasized since the 70 s. It has been found through research that NOx not only causes photochemical smog, but also causes serious atmospheric pollution by causing harm to human health, causing high-level nitric acid rain, reducing ozone layer, and other problems. After China begins to grab nitric oxide for emission reduction, denitration is the key point for pollution prevention and control. Therefore, along with the deepening of the work of preventing and controlling the air pollution, more strict emission standards are continuously established again in various industries. The existing glass kiln denitration technology generally mainly processes by independently adding equipment investment at the tail end of flue gas, and has the disadvantages of high required flue gas temperature, large investment and high operation cost. However, for the longitudinal flame energy-saving environment-friendly float glass furnace of our company, although the energy-saving effect of the longitudinal flame glass furnace is good, because the flue gas temperature is low (120 ℃ -200 ℃), the low temperature energy is saved, the existing low temperature denitration technology is not mature, the investment is large, and the operation cost is high. The existing longitudinal flame glass kiln of the regenerator-communicated catalyst reduction low-temperature denitration system has the new problems of high technical energy consumption, more nitrogen oxides, large denitration investment and high operation cost.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, provides a multistage denitration ultralow-emission method in a heat storage chamber of a longitudinal flame energy-saving environment-friendly glass kiln, which has the advantages of low denitration investment and low operation cost, and also relates to the heat storage chamber applicable to the method and the application of the method.
In order to achieve the purpose, the ultralow emission method for multi-stage denitration in the heat storage chamber of the longitudinal flame energy-saving environment-friendly glass kiln is characterized in that small furnace channels and one or more groups of multi-channel heat storage chambers communicated with the small furnace channels are respectively arranged on breast walls at two longitudinal ends of the longitudinal flame energy-saving environment-friendly glass kiln, and SNCR first-stage high-temperature denitration and SCR second-stage catalyst reduction medium-temperature denitration are carried out in the heat storage chambers, and a catalyst reduction low-temperature denitration system is communicated with the tail ends of the heat storage chambers for denitration. The SCR secondary catalyst reduction medium-temperature denitration device is a reducing agent spraying mechanism. The reducing agent is urea or ammonia water. The device is a two-stage denitration ultra-low nitrogen oxide emission technical device in a heat storage chamber of a longitudinal flame energy-saving environment-friendly glass kiln. The heat storage chamber is a group of or a plurality of groups of single-channel heat storage chambers of the traditional glass kiln and is designed into at least one group or a plurality of groups of three-channel heat storage chambers. The small furnace channel is communicated with the heat storage chamber in an inclined mode. The method has the advantages of reducing environmental pollution, really achieving stricter emission standard of nitrogen oxides, simultaneously realizing less investment of fixed assets, low operation cost and remarkable economic, social and environmental protection benefits.
As optimization, SNCR first-stage high-temperature denitration is carried out at the temperature of 800-1100 ℃ in the regenerator, and SCR second-stage catalyst reduction medium-temperature denitration is carried out at the temperature of 320-420 ℃. The best denitration temperature is detected in the regenerator, the first-stage high-temperature (800-1100 ℃) denitration of the SNCR system is arranged, and the second-stage medium-temperature (320-420 ℃) denitration of the SCR catalyst is arranged, so that the ultralow emission is realized. SNCR first-stage high-temperature denitration is carried out at the temperature of 900 ℃ in the regenerator, and SCR second-stage catalyst reduction medium-temperature denitration is carried out at the temperature of 370 ℃.
As optimization, the denitration amount of the SNCR primary high-temperature denitration device accounts for more than 50% of the total nitrate content of the flue gas, and the residual nitrate in the flue gas is removed by the SNCR secondary catalyst reduction medium-temperature denitration device. The denitration amount of the SNCR secondary catalyst reduction medium-temperature denitration device accounts for more than 80% of the residual nitrate amount of the flue gas. More precisely, an SNCR first-stage high-temperature denitration device is arranged at the position of the optimum temperature (900 ℃) measured and found in at least one or more groups of three-channel heat storage chambers of the glass kiln, so that the denitration rate is more than 50%. More precisely, an SCR secondary catalyst reduction medium-temperature denitration device is arranged at the position where the optimum temperature (370 ℃) is detected and found in at least one or more groups of three-channel heat storage chambers, so that the denitration rate is over 80 percent.
As optimization, SNCR first-stage high-temperature denitration is carried out on the upper parts of the regenerative chambers connected with the small furnace channels, and SCR second-stage catalyst reduction medium-temperature denitration is carried out at the corresponding temperature of at least one or more groups of regenerative chamber channels. The SNCR first-stage high-temperature denitration device is arranged at the upper parts of the small furnace channels and the regenerator, the SCR second-stage catalyst reduction medium-temperature denitration device is arranged at the optimal temperature of at least one or more groups of three channels, and two-stage denitration is carried out in the regenerator, so that the fixed asset investment is low, the operation cost is low, and the ultralow emission of the glass kiln is achieved.
As optimization, the small furnace channel is communicated with an upward channel inclined upwards at the upper part of the regenerator, the upward channel is sequentially communicated with a regenerator descending channel, a regenerator ascending channel and a regenerator descending channel, and the low-temperature catalytic denitration system is transversely communicated with the regenerator descending channel; the SNCR first-stage high-temperature denitration device is arranged in the ascending channel, and the SCR second-stage catalyst reduction medium-temperature denitration device is arranged in the first descending channel of the regenerator or at the common bottom of the first descending channel of the regenerator and the second ascending channel of the regenerator.
The upper part of the regenerator communicated with the small furnace channel is upwards inclined, the top of the ascending channel is provided with an ascending channel vault, the axis of which is vertical to the flow direction of flue gas in the ascending channel, the bottom of the ascending channel is provided with an ascending channel slope base which is inclined upwards from the small furnace channel end, an SNCR (selective catalytic reduction) first-stage high-temperature denitration device is arranged in the ascending channel between the ascending channel vault and the ascending channel slope base, and the SCR second-stage catalyst reduction medium-temperature denitration device is arranged in a descending channel of the regenerator. An SNCR (selective catalytic reduction) first-stage high-temperature denitration device is arranged in an ascending channel between an ascending channel vault and an ascending channel slope bottom and between surrounding walls on two sides, a first channel and a second channel dividing wall between a regenerator descending first channel and a regenerator ascending second channel are arranged at the inner end of the ascending channel slope bottom downwards, a first channel outer wall of the regenerator descending first channel is arranged at the front top end of the ascending channel vault opposite to a small furnace channel, and an SCR second-stage catalyst reduction medium-temperature denitration device is arranged in a regenerator descending first channel between the first channel dividing wall and the first channel outer wall. The SCR second-stage catalyst reduction medium-temperature denitration device is arranged in a descending first channel of the regenerator between a first channel partition wall, a second channel partition wall and surrounding walls at two sides, a second channel bottom plate is arranged at the lower end of the outer wall of the first channel backwards, a second channel partition wall is arranged upwards in the middle of the second channel bottom plate, a rising second channel is arranged between the first channel partition wall and the second channel partition wall, a third channel outer wall is arranged downwards at the rear end of the slope bottom of an ascending channel, a regenerator descending third channel is arranged between the second channel partition wall and the third channel outer wall, and the lower part of the descending third channel. The flue gas rotary cavity between the two-channel bottom plate below the two-channel partition wall, the outer wall of the one channel, the two-channel partition wall and the surrounding walls at two sides is a two-turn channel between the first descending channel of the regenerator and the second ascending channel of the regenerator, and the SCR second-stage catalyst reduction medium-temperature denitration device is arranged at the lower part of the first descending channel of the lower regenerator and in the two-turn channel. A regenerator ascending two-channel is arranged between the partition wall of the first channel and the partition wall of the second channel and the partition wall of the third channel and surrounding walls at two sides, a flue gas rotary cavity between the slope bottom of an ascending channel above the partition wall of the second channel and between the partition wall of the third channel and the surrounding walls at two sides is a two-three turning channel between the ascending two-channel of the regenerator and the descending three-channel of the regenerator, a regenerator descending three-channel is arranged between the partition wall of the second channel and the partition wall of the third channel and between the.
The heat storage chamber suitable for the multistage denitration ultralow-emission method in the heat storage chamber of the longitudinal flame energy-saving environment-friendly glass kiln is a group or a plurality of groups of multi-channel heat storage chambers which are respectively communicated with small furnace channels on the chest walls at the two longitudinal ends of the longitudinal flame energy-saving environment-friendly glass kiln, an SNCR (selective non catalytic reduction) first-stage high-temperature denitration device and an SCR (selective catalytic reduction) second-stage catalyst reduction medium-temperature denitration device are arranged in the heat storage chambers, and a catalyst reduction low-temperature denitration system is communicated. The SCR secondary catalyst reduction medium-temperature denitration device is a reducing agent spraying mechanism. The reducing agent is urea or ammonia water. The device is a two-stage denitration ultra-low nitrogen oxide emission technical device in a heat storage chamber of a longitudinal flame energy-saving environment-friendly glass kiln. The heat storage chamber is a group of or a plurality of groups of single-channel heat storage chambers of the traditional glass kiln and is designed into at least one group or a plurality of groups of three-channel heat storage chambers. The small furnace channel is communicated with the heat storage chamber in an inclined mode. The method has the advantages of reducing environmental pollution, really achieving stricter emission standard of nitrogen oxides, simultaneously realizing less investment of fixed assets, low operation cost and remarkable economic, social and environmental protection benefits.
As optimization, an SNCR first-stage high-temperature denitration device is arranged at the temperature of 800-1100 ℃ of the regenerator, and an SCR second-stage catalyst reduction medium-temperature denitration device is arranged at the temperature of 320-420 ℃. The method comprises a small furnace channel and a heat storage chamber provided with three channels, wherein the position of the heat storage chamber where the optimal denitration temperature is detected is provided with a first-stage high-temperature (800-1100 ℃) denitration of an SNCR system and a second-stage medium-temperature (320-420 ℃) denitration of SCR catalyst reduction, so that the ultralow emission is realized.
As optimization, an SNCR first-stage high-temperature denitration device is arranged at the temperature of 900 ℃ of the heat storage chamber, and an SCR second-stage catalyst reduction medium-temperature denitration device is arranged at the temperature of 370 ℃. The denitration amount of the SNCR first-stage high-temperature denitration device accounts for more than 50% of the total nitrate content of the flue gas, and the residual nitrate in the flue gas is removed by the SNCR second-stage catalyst reduction medium-temperature denitration device. More precisely, an SNCR first-stage high-temperature denitration device is arranged at the position of the optimum temperature (900 ℃) measured and found in at least one or more groups of three-channel heat storage chambers of the glass kiln, so that the denitration rate is more than 50%. The denitration amount of the SNCR secondary catalyst reduction medium-temperature denitration device accounts for more than 80% of the residual nitrate amount of the flue gas. More precisely, an SCR secondary catalyst reduction medium-temperature denitration device is arranged at the position where the optimum temperature (370 ℃) is detected and found in at least one or more groups of three-channel heat storage chambers, so that the denitration rate is over 80 percent.
As optimization, an SNCR first-stage high-temperature denitration device is arranged at the upper part of a regenerator connected with a small furnace channel, and an SCR second-stage catalyst reduction medium-temperature denitration device is arranged at the corresponding temperature of at least one or more groups of regenerator channels. The SNCR first-stage high-temperature denitration device is arranged at the upper parts of the small furnace channels and the regenerator, the SCR second-stage catalyst reduction medium-temperature denitration device is arranged at the optimal temperature of at least one or more groups of three channels, and two-stage denitration is carried out in the regenerator, so that the fixed asset investment is low, the operation cost is low, and the ultralow emission of the glass kiln is achieved.
The small furnace channel is communicated with an upward channel which is inclined upwards and arranged at the upper part of the regenerator, the upward channel sequentially passes through the regenerator descending channel, and the regenerator ascending channel and the regenerator descending channel are transversely communicated with the low-temperature catalytic denitration system; the SNCR first-stage high-temperature denitration device is arranged in the ascending channel, and the SCR second-stage catalyst reduction medium-temperature denitration device is arranged in the first descending channel of the regenerator or at the common bottom of the first descending channel of the regenerator and the second ascending channel of the regenerator.
The upper part of the regenerator communicated with the small furnace channel is upwards inclined, the top of the ascending channel is provided with an ascending channel vault, the axis of which is vertical to the flow direction of flue gas in the ascending channel, the bottom of the ascending channel is provided with an ascending channel slope base which is inclined upwards from the small furnace channel end, an SNCR (selective catalytic reduction) first-stage high-temperature denitration device is arranged in the ascending channel between the ascending channel vault and the ascending channel slope base, and the SCR second-stage catalyst reduction medium-temperature denitration device is arranged in a descending channel of the regenerator.
An SNCR first-stage high-temperature denitration device is arranged in an ascending channel between the arch top of the ascending channel and the slope bottom of the ascending channel and between the enclosing walls at two sides of the ascending channel, a first channel and a second channel dividing wall between a descending first channel and an ascending second channel are arranged at the inner end of the slope bottom of the ascending channel downwards, a first channel outer wall of the descending first channel is arranged at the front top end of the arch top of the ascending channel opposite to the small furnace channel, and an SCR second-stage catalyst reduction medium-temperature denitration device is arranged in a descending first channel between the first.
The SCR second-stage catalyst reduction medium-temperature denitration device is arranged in a descending first channel of a regenerator between a first channel partition wall, a second channel partition wall and surrounding walls at two sides, a second three-channel bottom plate is arranged at the lower end of the outer wall of the first channel backwards, a second three-channel partition wall is arranged at the middle part of the second three-channel bottom plate upwards, a regenerator ascending second channel is arranged between the first channel partition wall and the second three-channel partition wall, a third channel outer wall is arranged at the rear end of the slope bottom of an ascending channel downwards, a regenerator descending third channel is arranged between the second three-channel partition wall and the third channel outer wall. The flue gas rotary cavity between the two-channel bottom plate below the two-channel partition wall, the outer wall of the one channel, the two-channel partition wall and the surrounding walls at two sides is a two-turn channel between the first descending channel of the regenerator and the second ascending channel of the regenerator, and the SCR second-stage catalyst reduction medium-temperature denitration device is arranged at the lower part of the first descending channel of the lower regenerator and in the two-turn channel. A regenerator ascending two-channel is arranged between the partition wall of the first channel and the partition wall of the second channel and the partition wall of the third channel and surrounding walls at two sides, a flue gas rotary cavity between the slope bottom of an ascending channel above the partition wall of the second channel and between the partition wall of the third channel and the surrounding walls at two sides is a two-three turning channel between the ascending two-channel of the regenerator and the descending three-channel of the regenerator, a regenerator descending three-channel is arranged between the partition wall of the second channel and the partition wall of the third channel and between the.
The application of the multistage denitration ultralow emission method in the heat storage chamber of the longitudinal flame energy-saving environment-friendly glass kiln is applied to a longitudinal reversing flame energy-saving environment-friendly float glass kiln.
In a word, the two-stage denitration ultralow-emission technical device in the heat storage chamber of the longitudinal flame energy-saving environment-friendly glass kiln comprises a small furnace channel, the heat storage chamber with three channels, an SNCR (selective non catalytic reduction) first-stage high-temperature denitration device and an SCR (selective catalytic reduction) second-stage catalyst reduction medium-temperature denitration device, and ultralow emission is realized. One or more groups of single-channel regenerators of the traditional glass kiln are designed into at least one or more groups of three-channel regenerators. An SNCR first-stage high-temperature denitration device is arranged at 900 ℃ for testing and finding the optimal temperature in at least one or more groups of three-channel heat storage chambers of the glass kiln, and the denitration rate is over 50 percent. And an SCR secondary catalyst reduction medium-temperature denitration device is arranged at 370 ℃ for finding the optimal temperature in at least one or more groups of three-channel heat storage chambers, so that the denitration rate is over 80 percent. The upper parts of the small furnace channels and the regenerator are subjected to primary denitration by adopting an SNCR system, the SCR catalyst is arranged at the optimal temperature of at least one group or multiple groups of three channels to reduce secondary medium-temperature denitration, and the two-stage denitration is carried out in the regenerator, so that the fixed asset investment is low, the operation cost is low, and the ultralow emission of the glass kiln is realized. One or more groups of single-channel regenerators of the traditional glass kiln are designed into at least one or more groups of three-channel regenerators, namely a first regenerator channel 2, a second regenerator channel 3 and a third regenerator channel 4. An SNCR high-temperature primary denitration system 5 is arranged in at least one or more groups of three-channel heat storage chambers of the glass kiln at the optimum temperature (900 ℃) to realize the denitration of more than 50 percent. The optimal temperature (370 ℃) is measured and found in at least one or more groups of three-channel heat storage chambers, and an SCR catalyst reduction secondary medium-temperature denitration system 6 is arranged, so that the denitration rate is over 80 percent.
By adopting the technical scheme, the multistage denitration ultralow-emission method in the heat storage chamber of the longitudinal flame energy-saving environment-friendly glass kiln, the heat storage chamber and the application thereof have the advantages of reducing environmental pollution, really achieving stricter emission standards of nitric oxides, simultaneously realizing less investment of fixed assets, low operation cost and remarkable economic, social and environment-friendly benefits.
Drawings
FIG. 1 is a schematic structural diagram of a regenerator to which the method for multistage denitration and ultralow emission in the regenerator of the longitudinal flame energy-saving and environment-friendly glass kiln of the invention is applied.
Detailed Description
The invention discloses an ultralow emission method for multi-stage denitration in a heat storage chamber of a longitudinal flame energy-saving environment-friendly glass kiln. The SCR secondary catalyst reduction medium-temperature denitration device is a reducing agent spraying mechanism. The reducing agent is urea or ammonia water. The device is a two-stage denitration ultra-low nitrogen oxide emission technical device in a heat storage chamber of a longitudinal flame energy-saving environment-friendly glass kiln. The heat storage chamber is a group of or a plurality of groups of single-channel heat storage chambers of the traditional glass kiln and is designed into at least one group or a plurality of groups of three-channel heat storage chambers. The small furnace channel is communicated with the heat storage chamber in an inclined mode. The method has the advantages of reducing environmental pollution, really achieving stricter emission standard of nitrogen oxides, simultaneously realizing less investment of fixed assets, low operation cost and remarkable economic, social and environmental protection benefits.
SNCR first-stage high-temperature denitration is carried out at the temperature of 800-1100 ℃ in the regenerator, and SCR second-stage catalyst reduction medium-temperature denitration is carried out at the temperature of 320-420 ℃. The best denitration temperature is detected in the regenerator, the first-stage high-temperature (800-1100 ℃) denitration of the SNCR system is arranged, and the second-stage medium-temperature (320-420 ℃) denitration of the SCR catalyst is arranged, so that the ultralow emission is realized. SNCR first-stage high-temperature denitration is carried out at the temperature of 900 ℃ in the regenerator, and SCR second-stage catalyst reduction medium-temperature denitration is carried out at the temperature of 370 ℃.
The denitration amount of the SNCR first-stage high-temperature denitration device accounts for more than 50% of the total nitrate content of the flue gas, and the residual nitrate in the flue gas is removed by the SNCR second-stage catalyst reduction medium-temperature denitration device. The denitration amount of the SNCR secondary catalyst reduction medium-temperature denitration device accounts for more than 80% of the residual nitrate amount of the flue gas. More precisely, an SNCR first-stage high-temperature denitration device is arranged at the position of the optimum temperature (900 ℃) measured and found in at least one or more groups of three-channel heat storage chambers of the glass kiln, so that the denitration rate is more than 50%. More precisely, an SCR secondary catalyst reduction medium-temperature denitration device is arranged at the position where the optimum temperature (370 ℃) is detected and found in at least one or more groups of three-channel heat storage chambers, so that the denitration rate is over 80 percent.
SNCR first-stage high-temperature denitration is carried out on the upper part of the regenerator connected with the small furnace channel, and SCR second-stage catalyst reduction medium-temperature denitration is carried out at the corresponding temperature of at least one or more groups of regenerator channels. The SNCR first-stage high-temperature denitration device is arranged at the upper parts of the small furnace channels and the regenerator, the SCR second-stage catalyst reduction medium-temperature denitration device is arranged at the optimal temperature of at least one or more groups of three channels, and two-stage denitration is carried out in the regenerator, so that the fixed asset investment is low, the operation cost is low, and the ultralow emission of the glass kiln is achieved. The small furnace channel is communicated with an upward channel which is inclined upwards and arranged at the upper part of the regenerator, the upward channel sequentially passes through the regenerator descending channel, and the regenerator ascending channel and the regenerator descending channel are transversely communicated with the low-temperature catalytic denitration system; the SNCR first-stage high-temperature denitration device is arranged in the ascending channel, and the SCR second-stage catalyst reduction medium-temperature denitration device is arranged in the first descending channel of the regenerator or at the common bottom of the first descending channel of the regenerator and the second ascending channel of the regenerator.
The upper part of the regenerator communicated with the small furnace channel is upwards inclined, the top of the ascending channel is provided with an ascending channel vault, the axis of which is vertical to the flow direction of flue gas in the ascending channel, the bottom of the ascending channel is provided with an ascending channel slope base which is inclined upwards from the small furnace channel end, an SNCR (selective catalytic reduction) first-stage high-temperature denitration device is arranged in the ascending channel between the ascending channel vault and the ascending channel slope base, and the SCR second-stage catalyst reduction medium-temperature denitration device is arranged in a descending channel of the regenerator. An SNCR (selective catalytic reduction) first-stage high-temperature denitration device is arranged in an ascending channel between an ascending channel vault and an ascending channel slope bottom and between surrounding walls on two sides, a first channel and a second channel dividing wall between a regenerator descending first channel and a regenerator ascending second channel are arranged at the inner end of the ascending channel slope bottom downwards, a first channel outer wall of the regenerator descending first channel is arranged at the front top end of the ascending channel vault opposite to a small furnace channel, and an SCR second-stage catalyst reduction medium-temperature denitration device is arranged in a regenerator descending first channel between the first channel dividing wall and the first channel outer wall. The SCR second-stage catalyst reduction medium-temperature denitration device is arranged in a descending first channel of the regenerator between a first channel partition wall, a second channel partition wall and surrounding walls at two sides, a second channel bottom plate is arranged at the lower end of the outer wall of the first channel backwards, a second channel partition wall is arranged upwards in the middle of the second channel bottom plate, a rising second channel is arranged between the first channel partition wall and the second channel partition wall, a third channel outer wall is arranged downwards at the rear end of the slope bottom of an ascending channel, a regenerator descending third channel is arranged between the second channel partition wall and the third channel outer wall, and the lower part of the descending third channel. The flue gas rotary cavity between the two-channel bottom plate below the two-channel partition wall, the outer wall of the one channel, the two-channel partition wall and the surrounding walls at two sides is a two-turn channel between the first descending channel of the regenerator and the second ascending channel of the regenerator, and the SCR second-stage catalyst reduction medium-temperature denitration device is arranged at the lower part of the first descending channel of the lower regenerator and in the two-turn channel. A regenerator ascending two-channel is arranged between the partition wall of the first channel and the partition wall of the second channel and the partition wall of the third channel and surrounding walls at two sides, a flue gas rotary cavity between the slope bottom of an ascending channel above the partition wall of the second channel and between the partition wall of the third channel and the surrounding walls at two sides is a two-three turning channel between the ascending two-channel of the regenerator and the descending three-channel of the regenerator, a regenerator descending three-channel is arranged between the partition wall of the second channel and the partition wall of the third channel and between the.
As shown in figure 1, the regenerator of the multistage denitration ultralow-emission method in the regenerator of the longitudinal flame energy-saving environment-friendly glass kiln is one or more groups of multi-channel regenerators which are respectively communicated with small furnace channels on the two longitudinal end walls of the longitudinal flame energy-saving environment-friendly glass kiln, an SNCR (selective non catalytic reduction) first-stage high-temperature denitration device 5 and an SCR (selective catalytic reduction) second-stage catalyst reduction medium-temperature denitration device 6 are arranged in the regenerator, and a catalyst reduction low-temperature denitration system 7 is communicated with the tail end of the regenerator. The SCR secondary catalyst reduction medium-temperature denitration device is a reducing agent spraying mechanism. The reducing agent is urea or ammonia water. The device is a two-stage denitration ultra-low nitrogen oxide emission technical device in a heat storage chamber of a longitudinal flame energy-saving environment-friendly glass kiln. The heat storage chamber is a group of or a plurality of groups of single-channel heat storage chambers of the traditional glass kiln and is designed into at least one group or a plurality of groups of three-channel heat storage chambers. The small furnace channel is communicated with the heat storage chamber in an inclined mode. The method has the advantages of reducing environmental pollution, really achieving stricter emission standard of nitrogen oxides, simultaneously realizing less investment of fixed assets, low operation cost and remarkable economic, social and environmental protection benefits.
An SNCR first-stage high-temperature denitration device 5 is arranged at the temperature of 800-1100 ℃ of the regenerator, and an SCR second-stage catalyst reduction medium-temperature denitration device 6 is arranged at the temperature of 320-420 ℃. The method comprises a small furnace channel and a heat storage chamber provided with three channels, wherein the position of the heat storage chamber where the optimal denitration temperature is detected is provided with a first-stage high-temperature (800-1100 ℃) denitration of an SNCR system and a second-stage medium-temperature (320-420 ℃) denitration of SCR catalyst reduction, so that the ultralow emission is realized. An SNCR first-stage high-temperature denitration device 5 is arranged at the temperature of 900 ℃ of the regenerator, and an SCR second-stage catalyst reduction medium-temperature denitration device 6 is arranged at the temperature of 370 ℃. More precisely, an SNCR first-stage high-temperature denitration device is arranged at the position of the optimum temperature (900 ℃) measured and found in at least one or more groups of three-channel heat storage chambers of the glass kiln, so that the denitration rate is more than 50%. The denitration amount of the SNCR first-stage high-temperature denitration device 5 accounts for more than 50% of the total nitrate content of the flue gas, and the residual nitrate in the flue gas is removed by the SNCR second-stage catalyst reduction medium-temperature denitration device 6. The denitration amount of the SNCR secondary catalyst reduction medium-temperature denitration device 6 accounts for more than 80% of the residual nitrate amount of the flue gas. More precisely, an SCR secondary catalyst reduction medium-temperature denitration device is arranged at the position where the optimum temperature (370 ℃) is detected and found in at least one or more groups of three-channel heat storage chambers, so that the denitration rate is over 80 percent.
An SNCR first-stage high-temperature denitration device 5 is arranged at the upper part of a regenerator connected with the small furnace channel 1, and an SCR second-stage catalyst reduction medium-temperature denitration device 6 is arranged at the corresponding temperature of the regenerator channel. The SNCR first-stage high-temperature denitration device is arranged at the upper parts of the small furnace channels and the regenerator, the SCR second-stage catalyst reduction medium-temperature denitration device is arranged at the optimal temperature of at least one or more groups of three channels, and two-stage denitration is carried out in the regenerator, so that the fixed asset investment is low, the operation cost is low, and the ultralow emission of the glass kiln is achieved.
The small furnace channel 1 is communicated with an upward channel which is inclined upwards at the upper part of the regenerator, the upward channel sequentially passes through the regenerator descending channel 2, and the regenerator ascending channel 3 and the regenerator descending channel 4 are transversely communicated with the low-temperature catalytic denitration system 7; the SNCR first-stage high-temperature denitration device 5 is arranged in the ascending channel, and the SCR second-stage catalyst reduction medium-temperature denitration device 6 is arranged in the regenerator descending first channel 2 or at the common bottom of the regenerator descending first channel 2 and the regenerator ascending second channel 3. The upward inclined ascending channel at the upper part of the regenerator communicated with the port 1 is characterized in that the top of the ascending channel is provided with an ascending channel vault 8 the axis of which is vertical to the flow direction of flue gas in the ascending channel, the bottom of the ascending channel is provided with an ascending channel slope bottom 80 which is inclined inwards from the port 1 of the port, an SNCR (selective catalytic reduction) first-stage high-temperature denitration device 5 is arranged in the ascending channel between the ascending channel vault 8 and the ascending channel slope bottom 80, and an SCR second-stage catalyst reduction medium-temperature denitration device 6 is arranged in a. An SNCR (selective catalytic reduction) first-stage high-temperature denitration device 5 is arranged in an ascending channel between an ascending channel vault 8 and an ascending channel slope bottom 80 and between surrounding walls on two sides, a first channel dividing wall 81 between a regenerator descending first channel 2 and a regenerator ascending second channel 3 is arranged at the inner end of the ascending channel slope bottom 80 downwards, a first channel outer wall 82 of the regenerator descending first channel is arranged at the front top end of the ascending channel vault 8 opposite to a small furnace channel 1, and an SCR second-stage catalyst reduction medium-temperature denitration device 6 is arranged in the regenerator descending first channel 2 between the first channel dividing wall 81 and the first channel outer wall 82.
The SCR second-stage catalyst reduction medium-temperature denitration device 6 is arranged in a regenerator descending first channel 2 between a first channel partition wall 81, a channel outer wall 82 and surrounding walls at two sides, a two-channel bottom plate 83 is arranged at the lower end of the channel outer wall 82 backwards, a two-channel partition wall 84 is arranged at the middle part of the two-channel bottom plate 83 upwards, a regenerator ascending second channel 3 is arranged between the first channel partition wall 81 and the two-channel partition wall 84, a three-channel outer wall 85 is arranged at the rear end of an ascending channel slope bottom 80 downwards, a regenerator descending three channel 4 is arranged between the two-channel partition wall 84 and the three-channel outer wall 85, and the lower part of the regenerator descending three channel 4 is. The flue gas rotary cavity between the two-channel bottom plate 83 and the one-channel outer wall 82 below the two-channel partition wall 81, the two-channel partition wall 81 and the surrounding walls at two sides is a two-turn channel 9 between the regenerator descending one-channel 2 and the regenerator ascending two-channel 3, and the SCR second-stage catalyst reduction medium-temperature denitration device 6 is arranged at the lower part of the lower regenerator descending one-channel 2 and the two-turn channel 9. A regenerator ascending second channel 3 is arranged between a second channel partition 81, a second channel partition 84 and surrounding walls at two sides, a flue gas rotary cavity between an ascending channel slope bottom 80 above the second channel partition 84, a three channel outer wall 85 and the surrounding walls at two sides is a two-three turning channel 10 between the regenerator ascending second channel 3 and a regenerator descending third channel 4, regenerator descending third channels 4 are arranged between the second channel partition 84, the three channel outer wall 85 and the surrounding walls at two sides, and the regenerator descending third channels 4 are transversely communicated with the low-temperature catalyst reduction denitration system 7 through lower openings of the three channel outer wall 85.
In a word, the two-stage denitration ultralow-emission technical device in the heat storage chamber of the longitudinal flame energy-saving environment-friendly glass kiln comprises a small furnace channel, the heat storage chamber with three channels, an SNCR (selective non catalytic reduction) first-stage high-temperature denitration device and an SCR (selective catalytic reduction) second-stage catalyst reduction medium-temperature denitration device, and ultralow emission is realized. One or more groups of single-channel regenerators of the traditional glass kiln are designed into at least one or more groups of three-channel regenerators. An SNCR first-stage high-temperature denitration device is arranged at 900 ℃ for testing and finding the optimal temperature in at least one or more groups of three-channel heat storage chambers of the glass kiln, and the denitration rate is over 50 percent. And an SCR secondary catalyst reduction medium-temperature denitration device is arranged at 370 ℃ for finding the optimal temperature in at least one or more groups of three-channel heat storage chambers, so that the denitration rate is over 80 percent. The upper parts of the small furnace channels and the regenerator are subjected to primary denitration by adopting an SNCR system, the SCR catalyst is arranged at the optimal temperature of at least one group or multiple groups of three channels to reduce secondary medium-temperature denitration, and the two-stage denitration is carried out in the regenerator, so that the fixed asset investment is low, the operation cost is low, and the ultralow emission of the glass kiln is realized. One or more groups of single-channel regenerators of the traditional glass kiln are designed into at least one or more groups of three-channel regenerators, namely a first regenerator channel 2, a second regenerator channel 3 and a third regenerator channel 4. An SNCR high-temperature primary denitration system is arranged in at least one or more groups of three-channel heat storage chambers of the glass kiln at the optimum temperature (900 ℃) to achieve the denitration rate of more than 50 percent. The optimal temperature (370 ℃) is measured and found in at least one or more groups of three-channel heat storage chambers, and an SCR catalyst reduction secondary medium-temperature denitration system is arranged, so that the denitration rate is over 80 percent.
The invention discloses an application of a multistage denitration ultralow emission method in a heat storage chamber of a longitudinal flame energy-saving environment-friendly glass kiln, which is applied to a longitudinal reversing flame energy-saving environment-friendly float glass kiln.
Therefore, the multistage denitration ultralow-emission method in the heat storage chamber of the longitudinal flame energy-saving environment-friendly glass kiln, the heat storage chamber and the application thereof have the advantages of reducing environmental pollution, really achieving stricter emission standards of nitric oxides, realizing low investment in fixed assets, low operation cost and remarkable economic, social and environment-friendly benefits.
Claims (10)
1. A multi-stage denitration ultralow-emission method in a heat storage chamber of a longitudinal flame energy-saving environment-friendly glass kiln is characterized in that small furnace channels and one or more groups of multi-channel heat storage chambers communicated with the small furnace channels are respectively arranged on breast walls at two longitudinal ends of the longitudinal flame energy-saving environment-friendly glass kiln, SNCR first-stage high-temperature denitration and SCR second-stage catalyst reduction medium-temperature denitration are carried out in the heat storage chambers, and a catalyst reduction low-temperature denitration system is communicated with the tail ends of the heat storage chambers for denitration.
2. The method for multistage denitration and ultralow emission in the heat storage chamber of the longitudinal flame energy-saving environment-friendly glass kiln as claimed in claim 1, is characterized in that SNCR first-stage high-temperature denitration is carried out at 800-1100 ℃ in the heat storage chamber, and SCR second-stage catalyst reduction medium-temperature denitration is carried out at 320-420 ℃.
3. The method for multistage denitration and ultralow emission in the heat storage chamber of the longitudinal flame energy-saving environment-friendly glass kiln as claimed in any one of claims 1 or 2, wherein the SNCR first-stage high-temperature denitration and denitration amount accounts for more than 50% of the total nitrate content in the flue gas, and the SCR catalyst reduces the second-stage medium-temperature denitration to remove the residual nitrate in the flue gas.
4. The method for multi-stage denitration and ultralow emission in the regenerator of the longitudinal flame energy-saving and environment-friendly glass kiln as claimed in claim 1, wherein SNCR one-stage high-temperature denitration is performed at the upper part of the regenerator connected with the small furnace channels, and SCR two-stage catalyst reduction medium-temperature denitration is performed at the corresponding temperature of at least one or more groups of regenerator channels.
5. The method for multistage denitration and ultralow emission in the regenerator of the longitudinal flame energy-saving environment-friendly glass kiln according to claim 4, characterized in that the small furnace channels are communicated with an upward channel inclined upwards at the upper part of the regenerator, the upward channel is sequentially communicated with a regenerator descending channel, a regenerator ascending channel and a regenerator descending channel are transversely communicated with a low-temperature catalytic denitration system; an SNCR first-stage high-temperature denitration device is arranged in the ascending channel, and an SCR second-stage catalyst reduction medium-temperature denitration device is arranged in the regenerator descending first channel or at the common bottom of the regenerator descending first channel and the regenerator ascending second channel.
6. The heat storage chamber suitable for the multistage denitration ultralow-emission method in the heat storage chamber of the longitudinal flame energy-saving environment-friendly glass kiln in claim 1 is characterized in that one or more groups of multi-channel heat storage chambers are respectively communicated with small furnace channels on the chest walls at the two longitudinal ends of the longitudinal flame energy-saving environment-friendly glass kiln, and an SNCR (selective non catalytic reduction) first-stage high-temperature denitration device and an SCR (selective catalytic reduction) second-stage catalyst reduction medium-temperature denitration device are arranged in the heat storage chambers; the tail end of the regenerator is communicated with a catalyst reduction low-temperature denitration system.
7. The regenerative chamber according to claim 6, wherein an SNCR first-stage high-temperature denitration device is arranged at 800-1100 ℃ of the regenerative chamber, and an SCR second-stage catalyst reduction medium-temperature denitration device is arranged at 320-420 ℃.
8. The regenerator of claim 6 or 7, wherein an SNCR first-stage high-temperature denitrator is provided at 900 ℃ and an SCR second-stage catalyst reduction medium-temperature denitrator is provided at 370 ℃ in the regenerator.
9. The regenerator of claim 1, wherein an SNCR first-stage high-temperature denitration device is disposed at the upper part of the regenerator connected to the port, and an SCR second-stage catalyst reduction medium-temperature denitration device is disposed at the corresponding temperature of at least one or more groups of regenerator channels.
10. The application of the multistage denitration ultra-low emission method in the heat storage chamber of the longitudinal flame energy-saving environment-friendly glass kiln as claimed in claim 1, which is characterized by being applied to a longitudinal reversing flame energy-saving environment-friendly float glass kiln.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5573568A (en) * | 1992-11-27 | 1996-11-12 | Pilkington Glass Limited | Method for reducing NOx emissions from a regenerative glass furnace |
| CN203501199U (en) * | 2013-08-30 | 2014-03-26 | 安徽省元琛环保科技有限公司 | NOx-controlled denitrification device of glass kiln |
| CN203794769U (en) * | 2014-02-22 | 2014-08-27 | 江苏中建材环保研究院有限公司 | Gun distributing device for flue gas selective non-catalytic reduction (SNCR) denitration of glass melter |
| CN108579360A (en) * | 2018-05-22 | 2018-09-28 | 北京科技大学 | A kind of coke oven regenerator UTILIZATION OF VESIDUAL HEAT IN couples method of denitration and device with SNCR/SCR |
-
2020
- 2020-02-28 CN CN202010126956.1A patent/CN111111437A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5573568A (en) * | 1992-11-27 | 1996-11-12 | Pilkington Glass Limited | Method for reducing NOx emissions from a regenerative glass furnace |
| CN203501199U (en) * | 2013-08-30 | 2014-03-26 | 安徽省元琛环保科技有限公司 | NOx-controlled denitrification device of glass kiln |
| CN203794769U (en) * | 2014-02-22 | 2014-08-27 | 江苏中建材环保研究院有限公司 | Gun distributing device for flue gas selective non-catalytic reduction (SNCR) denitration of glass melter |
| CN108579360A (en) * | 2018-05-22 | 2018-09-28 | 北京科技大学 | A kind of coke oven regenerator UTILIZATION OF VESIDUAL HEAT IN couples method of denitration and device with SNCR/SCR |
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