CN205191613U - Thermal power plant's chimney is discharged fume inner tube or inside lining and is used corrosion -resistant brick - Google Patents
Thermal power plant's chimney is discharged fume inner tube or inside lining and is used corrosion -resistant brick Download PDFInfo
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- CN205191613U CN205191613U CN201520873314.2U CN201520873314U CN205191613U CN 205191613 U CN205191613 U CN 205191613U CN 201520873314 U CN201520873314 U CN 201520873314U CN 205191613 U CN205191613 U CN 205191613U
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- 239000011449 brick Substances 0.000 title claims abstract description 131
- 230000007797 corrosion Effects 0.000 title claims abstract description 54
- 238000005260 corrosion Methods 0.000 title claims abstract description 54
- 239000003517 fume Substances 0.000 title abstract description 6
- 238000000576 coating method Methods 0.000 claims abstract description 53
- 239000011248 coating agent Substances 0.000 claims abstract description 44
- 239000004593 Epoxy Substances 0.000 claims abstract description 27
- 239000007788 liquid Substances 0.000 claims abstract description 22
- 239000002904 solvent Substances 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 24
- 230000002421 anti-septic effect Effects 0.000 claims description 20
- 239000003973 paint Substances 0.000 claims description 14
- 239000002131 composite material Substances 0.000 claims description 12
- 238000003723 Smelting Methods 0.000 claims description 11
- 239000011247 coating layer Substances 0.000 claims description 6
- 239000004568 cement Substances 0.000 claims description 4
- 239000011451 fired brick Substances 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 12
- 239000000758 substrate Substances 0.000 abstract description 7
- 239000000843 powder Substances 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 17
- 239000003546 flue gas Substances 0.000 description 17
- 238000000034 method Methods 0.000 description 16
- 229920006334 epoxy coating Polymers 0.000 description 14
- 239000011159 matrix material Substances 0.000 description 11
- 238000007711 solidification Methods 0.000 description 10
- 230000008023 solidification Effects 0.000 description 10
- 230000002378 acidificating effect Effects 0.000 description 9
- 238000009833 condensation Methods 0.000 description 9
- 230000005494 condensation Effects 0.000 description 9
- 239000000779 smoke Substances 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 238000005507 spraying Methods 0.000 description 6
- 239000000919 ceramic Substances 0.000 description 5
- 238000005243 fluidization Methods 0.000 description 5
- 239000011494 foam glass Substances 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 230000001154 acute effect Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 230000007850 degeneration Effects 0.000 description 4
- 238000000280 densification Methods 0.000 description 4
- 238000006477 desulfuration reaction Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 238000010422 painting Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000023556 desulfurization Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000010926 purge Methods 0.000 description 3
- 238000005488 sandblasting Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229920002396 Polyurea Polymers 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Landscapes
- Chimneys And Flues (AREA)
Abstract
The utility model provides a thermal power plant's chimney is discharged fume inner tube or inside lining and is used corrosion -resistant brick which characterized in that: physically be provided with compact anticorrosive wear -resistant coating (2) in substrate (1) surface at the brick, the section porosity of anticorrosive wear -resistant coating (2) is 1~2 grade, coating curing degree >= 98 percent, anticorrosive wear -resistant coating specifically combines the coating of epoxy powder coating or the preparation of solvent -free epoxy liquid coating for the melting, the coating thickness is 0.2~6mm. The corrosion effects of corrosion -resistant brick is good, and it has, and relative light in weight, structural strength are high, the non -corrosibility can reach advantages such as economical and practical well.
Description
Technical field
The utility model relates to the structural design of corrosion resistant brick, preparation technology and applied technical field thereof, specifically proposes a kind of thermal power plant chimney emission inner core or liner corrosion resistant brick.
Background technology
Heat-engine plant wet flue gas desulfurization green technology is because of features such as its desulfuration efficiency is high, ature of coal is widely applicable, mature technology, the steady running cycle are long, load change impact is little, gas treatment ability is large, be widely used in each large and medium-sized thermal power plant, become the leading technology of domestic and international flue gas desulphurization.This technique be utilize flue gas by during desulfurizer and alkaline detergent meet, make acidic materials generation chemical reaction, generate salt, remove SO in flue gas
2deng material.Finally, the flue gas after wet desulfurizing process process discharges through chimney.In early days mainly for promoting the rising height of flue gas, flue gas heat-exchange unit GGH being installed, the neat stress about 50 DEG C that absorption tube is discharged being heated to about 80 DEG C and being beneficial to discharge.But in order to reduce the side effect that adds heat smoke and energy-conservation aspect is considered, all cancelling GGH at the desulfurizer built afterwards, making the wet steam of about 50 DEG C and flue gas directly in smoke stack emission like this, making the corrosion of the wet flue gas at this temperature to chimney even more serious.
When wet desulfurization system is out of service for some reason, the flue gas of now smoke stack emission can reach 180 DEG C, to the destruction of chimney protective materials also very greatly, meanwhile, powerful wet flue gas exhaust jet stream also has certain wear-out failure to chimney wall for flue gas alternation of wetting and drying and temperature alternate run.
Insoluble technical problem is there is: because the neat stress temperature after desulfurization is lower in prior art, humidity is comparatively large, flue gas in chimney along with the increase of height, when flue-gas temperature is lower than dew point, steam in flue gas condenses at inner wall of stack, the SO simultaneously in flue gas
3, HCl, HF, HNO
3etc. being condensed in condensate water, generate and have extremely strong corrosive acid solution, usual pH value is 1.5 ~ 2.5.Owing to generating corrosive acid solution to chimney lining corrosion failure containing wet larger smoke condensation, flue gas can penetrate into chimney internal cylinder surface by liner crack, causes chimney wall corrosion failure, affects chimney structure intensity time serious.
At present both at home and abroad chimney data, the structural material of thermal power plant's chimney emission inner core generally has two kinds: steel inner cylinder type structure and brick inner core or inside bearing strip structure.Wherein: steel inner cylinder structure adopts protective coating to carry out anticorrosion, namely as glass flake, fiberglass, polyurea protection etc., but there is large area hollowing and obscission in application soon.In addition also have and adopt titanium lined plate, but cost is extremely expensive.Corrosion resistant brick is adopted for brick inner core or inner lining structure, as materials such as foam glass brick, foamed ceramic brick, acidproof bricks, but in use affects by dry wet alternation and temperature alternating the phenomenon often finding that there is cracking and peel off.
People urgently wish to obtain a kind of economical and practical, thermal power plant's chimney emission inner core corrosion resistant brick that technique effect is excellent.
Utility model content
The purpose of this utility model is to provide a kind of economical and practical, thermal power plant's chimney emission inner core that technique effect is excellent or liner corrosion resistant brick.
A kind of thermal power plant's chimney emission inner core of the utility model or liner corrosion resistant brick, is characterized in that:
Be provided with fine and close antiseptic wearable coat 2 on brick body base material 1 surface, the section porosity of antiseptic wearable coat 2 is 1 ~ 2 grade, curing of coatings degree >=98 ﹪; Antiseptic wearable coat is specially the coating of smelting combined epoxy powdery paints or the making of non-solvent epoxy liquid coating; Coating layer thickness is 0.2 ~ 6 ㎜.
Corrosion resistant brick key property index request is as follows: compression strength >=2MPa; Resistance to 160 DEG C of temperature difference acute degenerations circulation >=30 times in air; Resistance to 75 DEG C of temperature difference acute degenerations circulation >=40 times in water; Resistance to 80 DEG C, the sulfuric acid of 20% soaks 7d: compression strength retention rate >=95%; Wearability: Cs10,1Kg, 1000r≤50mg.See table 1:
Table 1 corrosion resistant brick key property index request
Described thermal power plant chimney emission inner core corrosion resistant brick, is characterized in that: brick body base material is specifically following one of several: foamed brick, fired brick, cement brick or composite brick.
The utility model also relates to aforementioned by the preparation method of utility model content closely-related a kind of thermal power plant chimney emission inner core or liner corrosion resistant brick in technology application practice, automatic continuous production and the mode of production hand-manipulated can be adopted to carry out, it is characterized in that: at the high-performance epoxy anticorrosion wear-resistant coating that the preparation of brick body substrate surface is fine and close; Two kinds of preparation method's specific requirements of described thermal power plant chimney internal cylinder or liner corrosion resistant brick are as follows:
(1) with the preparation of smelting combined epoxy powdery paints:
First the preheating of brick body is carried out: treating that application brick body inserts preheating in baking oven, preheat temperature controls, at 220 ± 40 DEG C, to be then incubated 20 ~ 60 minutes;
Carry out application afterwards: preheating brick is immersed and fills in the fluid bed of powdery paints, regulate the fluidisation time according to actual conditions and immerse number of times, to reach required thickness 0.2 ~ 6 ㎜; Fluidisation time requirement is 1 ~ 10 second, and immersing number of times is 1 ~ 10 time;
And then carrying out curing of coatings: the brick applied is sent in baking oven and solidifies further, reach coating optimum performance, solidification temperature is 200 ± 40 DEG C;
(2) with the antiseptic wearable coat of non-solvent epoxy liquid coating in brick body substrate surface preparation densification: adopt high pressure airless spraying apparatus directly to carry out spray-on coating operation to brick body, coating layer thickness is 0.2 ~ 6mm as required.
The preparation method of described thermal power plant chimney emission inner core corrosion resistant brick, is characterized in that: when carrying out the preheating of brick body, preheat temperature controls, at 220 ± 40 DEG C, to be then incubated 20 ~ 60 minutes to assigned temperature; When carrying out curing of coatings, solidification temperature is 200 ± 40 DEG C.
Before the application of brick body, preferred operations will carry out surface pretreatment to brick body base material, specific requirement is as follows: matrix brick needs fully dry, adopt the mode texturing brick body of sandblasting to treat coating surface, depth of abrasion pattern, between 50 ~ 200 microns, purges surface clean with pressure-air afterwards.
For ensureing technique effect further, the matrix brick choice requirement surfacing of coating to be prepared, the nothing obviously rough and uneven in surface and open defect such as crack, cavity.
Adopt smelting combined epoxy powdery paints in fluidized bed painting mode, or (the similar preparation manipulation technique of liquid coating is similar with using in prior art in airless spraying mode to adopt solvent-free liquid epoxy coating, do not repeat them here), fine and close antiseptic wearable coat is formed in brick surface, to reach anticorrosion effect after solidification.
The good resistance to chemical corrosion that the utility model has based on high-performance epoxy coating and mechanical performance, described thermal power plant chimney emission inner core or liner corrosion resistant brick can resist the corrosive conditions environment of wet-method desulfurized fume condensation acidic liquid completely, if make this type coating of one deck on common brick surface, this composite brick matrix can be ensured under the corrosive conditions environmental condition of smoke condensation acidic liquid from corrosion.
Based on structural material and the Problems existing of thermal power plant's chimney emission inner core or liner employing both at home and abroad at present, the utility model proposes a kind of corrosion protection can better the corrosion resistant brick (essence is a kind of composite brick) of surface coating high-performance epoxy coating, it can substitute the material such as foam glass brick, foamed ceramic brick, acidproof brick used at present, has the advantages such as relative weight is light, structural strength is high, antiseptic property is good and economical and practical.
Accompanying drawing explanation
Below in conjunction with drawings and the embodiments, the utility model is described in further detail:
Fig. 1 is thermal power plant's chimney emission inner core corrosion resistant brick structural representation sketch sectional view.
Detailed description of the invention
The implication that in Fig. 1, Reference numeral 1 represents is brick body base material, Reference numeral 2 implication is that (smelting combined epoxy powdery paints or non-solvent epoxy liquid coating make face coat, in Fig. 1, Reference numeral 2 indication place is section, and hatching omits and do not draw---hereby illustrate).
Embodiment 1
A kind of thermal power plant's chimney emission inner core or liner corrosion resistant brick, be provided with fine and close antiseptic wearable coat 2 on brick body base material 1 surface, the section porosity of antiseptic wearable coat 2 is 1 ~ 2 grade, curing of coatings degree >=98 ﹪; Antiseptic wearable coat is specially the coating of smelting combined epoxy powdery paints or the making of non-solvent epoxy liquid coating; Coating layer thickness is 0.2 ~ 6 ㎜.
Corrosion resistant brick key property index request is as follows: compression strength >=2MPa; Resistance to 160 DEG C of temperature difference acute degenerations circulation >=30 times in air; Resistance to 75 DEG C of temperature difference acute degenerations circulation >=40 times in water; Resistance to 80 DEG C, the sulfuric acid of 20% soaks 7d: compression strength retention rate >=95%; Wearability: Cs10,1Kg, 1000r≤50mg.Specific targets can see table 1:
Table 1 corrosion resistant brick key property index request
In described thermal power plant chimney emission inner core corrosion resistant brick, brick body base material is specifically following one of several: foamed brick, fired brick, cement brick or composite brick.
With the preparation method of foregoing teachings closely-related thermal power plant chimney emission inner core or liner corrosion resistant brick: automatic continuous production and the mode of production hand-manipulated can be adopted to carry out, and its important requirement is:
At the high-performance epoxy anticorrosion wear-resistant coating that the preparation of brick body substrate surface is fine and close; Two kinds of preparation method's specific requirements of described thermal power plant chimney internal cylinder or liner corrosion resistant brick are as follows:
(1) with the preparation of smelting combined epoxy powdery paints:
First the preheating of brick body is carried out: treating that application brick body inserts preheating in baking oven, preheat temperature controls, at 220 ± 40 DEG C, to be then incubated 20 ~ 60 minutes;
Carry out application afterwards: preheating brick is immersed and fills in the fluid bed of powdery paints, regulate the fluidisation time according to actual conditions and immerse number of times, to reach required thickness 0.2 ~ 6 ㎜; Fluidisation time requirement is 1 ~ 10 second, and immersing number of times is 1 ~ 10 time;
And then carrying out curing of coatings: the brick applied is sent in baking oven and solidifies further, reach coating optimum performance, solidification temperature is 200 ± 40 DEG C;
(2) with the antiseptic wearable coat of non-solvent epoxy liquid coating in brick body substrate surface preparation densification: adopt high pressure airless spraying apparatus directly to carry out spray-on coating operation to brick body, coating layer thickness is 0.2 ~ 6mm as required.
The preparation method of described thermal power plant chimney emission inner core corrosion resistant brick, requires: when carrying out the preheating of brick body, preheat temperature controls, at 220 ± 40 DEG C, to be then incubated 20 ~ 60 minutes to assigned temperature; When carrying out curing of coatings, solidification temperature is 200 ± 40 DEG C.
Before the application of brick body, preferred operations will carry out surface pretreatment to brick body base material, specific requirement is as follows: matrix brick needs fully dry, adopt the mode texturing brick body of sandblasting to treat coating surface, depth of abrasion pattern, between 50 ~ 200 microns, purges surface clean with pressure-air afterwards.
For ensureing technique effect further, the matrix brick choice requirement surfacing of coating to be prepared, the nothing obviously rough and uneven in surface and open defect such as crack, cavity.
Adopt smelting combined epoxy powdery paints in fluidized bed painting mode, or (the similar preparation manipulation technique of liquid coating is similar with using in prior art in airless spraying mode to adopt solvent-free liquid epoxy coating, do not repeat them here), fine and close antiseptic wearable coat is formed in brick surface, to reach anticorrosion effect after solidification.
The good resistance to chemical corrosion that the present embodiment has based on high-performance epoxy coating and mechanical performance, described thermal power plant chimney emission inner core or liner corrosion resistant brick can resist the corrosive conditions environment of wet-method desulfurized fume condensation acidic liquid completely, if make this type coating of one deck on common brick surface, this composite brick matrix can be ensured under the corrosive conditions environmental condition of smoke condensation acidic liquid from corrosion.
Based on structural material and the Problems existing of thermal power plant's chimney emission inner core or liner employing both at home and abroad at present, the present embodiment proposes a kind of corrosion protection can better the corrosion resistant brick (essence is a kind of composite brick) of surface coating high-performance epoxy coating, it can substitute the material such as foam glass brick, foamed ceramic brick, acidproof brick used at present, has the advantages such as relative weight is light, structural strength is high, antiseptic property is good and economical and practical.
Embodiment 2
A kind of thermal power plant chimney emission inner core corrosion resistant brick, has fine and close antiseptic wearable coat at brick body substrate surface; Antiseptic wearable coat is specially the coating of smelting combined epoxy powdery paints or the making of non-solvent epoxy liquid coating; Coating layer thickness is 0.2 ~ 6 ㎜.
Described thermal power plant chimney emission inner core or liner corrosion resistant brick, is characterized in that: brick body base material is specifically following one of several: foamed brick, fired brick, cement brick or composite brick.
For ensureing technique effect further, treat the matrix brick choice requirement surfacing of application high-performance epoxy coating, the nothing obviously rough and uneven in surface and open defect such as crack, cavity.
Adopt smelting combined epoxy powdery paints with fluidized bed painting mode or with non-solvent epoxy liquid coating in the mode of airless spraying, after solidification, form the antiseptic wearable coat of densification in brick surface, to reach the wear-resistant effect of anticorrosion.
The good resistance to chemical corrosion that the present embodiment has based on high-performance epoxy coating and mechanical performance, described thermal power plant chimney emission inner core or liner corrosion resistant brick can resist the corrosive conditions environment of wet-method desulfurized fume condensation acidic liquid completely, if make one deck high-performance epoxy coating on common brick surface, this composite brick matrix can be ensured under the corrosive conditions environmental condition of smoke condensation acidic liquid from corrosion.
Based on structural material and the Problems existing of thermal power plant's chimney emission inner core employing both at home and abroad at present, the present embodiment proposes a kind of corrosion protection can better the corrosion resistant brick (essence is a kind of composite brick) of surface coating high-performance epoxy coating, it can substitute the material such as foam glass brick, foamed ceramic brick, acidproof brick used at present, has the advantages such as relative weight is light, structural strength is high, antiseptic property is good and economical and practical.
Embodiment 2
The preparation method of thermal power plant's chimney emission inner core or liner corrosion resistant brick described in embodiment 1: have fine and close high-performance epoxy anticorrosion wear-resistant coating at brick body substrate surface; The method that described thermal power plant chimney emission inner core corrosion resistant brick adopts clinkery epoxy powder coating to prepare is as follows:
First the preheating of brick body is carried out: treating that application brick body inserts preheating in baking oven, preheat temperature controls, at 220 ± 40 DEG C, to be then incubated 20 ~ 60 minutes to assigned temperature;
Carry out application afterwards: preheating brick is immersed and fills in the fluid bed of powdery paints, regulate the fluidisation time according to actual conditions and immerse number of times, to reach required thickness 0.2 ~ 6 ㎜;
And then carrying out curing of coatings: the brick applied is sent in baking oven and solidifies further, reach coating optimum performance, solidification temperature is 200 ± 40 DEG C.
Optimized parameter requires: when carrying out the preheating of brick body, preheat temperature controls, at 220 ± 40 DEG C, to be then incubated 20 ~ 60 minutes to assigned temperature; When carrying out curing of coatings, solidification temperature is about 200 ± 40 DEG C.
Preferably surface pretreatment can also be carried out to brick body base material before the application of brick body, specific requirement is as follows: matrix brick needs fully dry, adopt the mode texturing brick body of sandblasting to treat coating surface, depth of abrasion pattern, between 50 ~ 200 microns, purges surface clean with pressure-air afterwards.
For ensureing technique effect further, treat the matrix brick choice requirement surfacing of application high-performance epoxy coating, the nothing obviously rough and uneven in surface and open defect such as crack, cavity.
Adopt smelting combined epoxy powdery paints with fluidized bed painting mode or with non-solvent epoxy liquid coating in the mode of airless spraying, after solidification, form the high-performance epoxy anticorrosion wear-resistant coating of densification in brick surface, to reach anticorrosion effect.
The good resistance to chemical corrosion that the present embodiment has based on high-performance epoxy coating and mechanical performance, described thermal power plant chimney emission inner core corrosion resistant brick can resist the corrosive conditions environment of wet-method desulfurized fume condensation acidic liquid completely, if make one deck high-performance epoxy coating on common brick surface, this composite brick matrix can be ensured under the corrosive conditions environmental condition of smoke condensation acidic liquid from corrosion.
Based on structural material and the Problems existing of thermal power plant's chimney emission inner core employing both at home and abroad at present, the present embodiment proposes a kind of corrosion protection can better the corrosion resistant brick (essence is a kind of composite brick) of surface coating high-performance epoxy coating, it can substitute the material such as foam glass brick, foamed ceramic brick, acidproof brick used at present, has the advantages such as relative weight is light, structural strength is high, antiseptic property is good and economical and practical.
Claims (2)
1. thermal power plant's chimney emission inner core or liner corrosion resistant brick, it is characterized in that: be provided with fine and close antiseptic wearable coat (2) on brick body base material (1) surface, the section porosity of antiseptic wearable coat (2) is 1 ~ 2 grade, curing of coatings degree >=98 ﹪; Antiseptic wearable coat is specially the coating of smelting combined epoxy powdery paints or the making of non-solvent epoxy liquid coating; Coating layer thickness is 0.2 ~ 6mm.
2. according to thermal power plant's chimney emission inner core described in claim 1 or liner corrosion resistant brick, it is characterized in that: brick body base material is specifically following one of several: foamed brick, fired brick, cement brick or composite brick.
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106017114A (en) * | 2016-06-18 | 2016-10-12 | 湖南众鑫新材料科技股份有限公司 | Vanadium nitride kiln smoke discharge system modification process |
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2015
- 2015-11-04 CN CN201520873314.2U patent/CN205191613U/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106017114A (en) * | 2016-06-18 | 2016-10-12 | 湖南众鑫新材料科技股份有限公司 | Vanadium nitride kiln smoke discharge system modification process |
CN106017114B (en) * | 2016-06-18 | 2017-12-12 | 湖南众鑫新材料科技股份有限公司 | A kind of vanadium nitride stores stove Modification of Waste Gas Exhausting System technique |
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