CN102829624B - Desulfuration and impurity removal device and process of tunnel kiln exhaust gas - Google Patents
Desulfuration and impurity removal device and process of tunnel kiln exhaust gas Download PDFInfo
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- CN102829624B CN102829624B CN201210351340.XA CN201210351340A CN102829624B CN 102829624 B CN102829624 B CN 102829624B CN 201210351340 A CN201210351340 A CN 201210351340A CN 102829624 B CN102829624 B CN 102829624B
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- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 52
- 239000012535 impurity Substances 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000011449 brick Substances 0.000 claims abstract description 169
- 239000002912 waste gas Substances 0.000 claims abstract description 85
- 239000007789 gas Substances 0.000 claims abstract description 38
- 238000001035 drying Methods 0.000 claims abstract description 13
- 230000023556 desulfurization Effects 0.000 claims description 45
- 230000003139 buffering effect Effects 0.000 claims description 26
- 239000012634 fragment Substances 0.000 claims description 23
- 238000005070 sampling Methods 0.000 claims description 21
- 238000002156 mixing Methods 0.000 claims description 18
- 238000010304 firing Methods 0.000 claims description 17
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 230000007613 environmental effect Effects 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 9
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 4
- 239000011593 sulfur Substances 0.000 abstract description 3
- 229910052717 sulfur Inorganic materials 0.000 abstract description 3
- 238000000605 extraction Methods 0.000 description 6
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000010992 reflux Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003500 flue dust Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
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Abstract
The invention relates to the technical field of waste gas treatment, and particularly relates to a desulfuration and impurity removal device and process of tunnel kiln exhaust gas. The process comprises the following steps that: A. part of exhaust gas generated in a high temperature baking area is introduced pinto a drying buffer area, the exhaust gas passes through a brick mesh of the drying buffer area and is then discharged from an exhaust gas collection channel; B. another part of exhaust gas generated in the high temperature baking area enters a side air duct through an air duct port, a ventilating gate is opened, cold air outside a tunnel kiln enters the side air duct through a ventilating gate port and is mixed with the exhaust gas in the side air duct, and the mixed exhaust gas enters the high temperature baking area again through the air duct port; C. the ventilating gate is closed, the exhaust gas enters the side air duct through the air duct port, and when the mixed exhaust gas reaches the side air duct of a drying area, the mixed exhaust gas is pumped from the air duct port to the drying area, and the mixed exhaust gas passes the brick mesh of the drying area; and D. the exhaust gas is pumped by a exhaust fan and discharged from the exhaust gas collection channel. The desulfuration and impurity removal device and process of tunnel kiln exhaust gas provided by the invention is good in a dedusting effect and high in desulfuration efficiency, and the sulfur content of the exhaust gas is reduced by 80%-90%.
Description
Technical field
The present invention relates to technical field of waste gas treatment, relate in particular to a kind of impurity desulfurization device and technique of tunnel cave waste gas.
Background technology
Tunnel cave, as a kind of environment-friendly and energy-efficient brickkiln, has slowly substituted traditional annular kiln in China, becomes the main brickkiln of China.The combustion product of tunnel cave has caused serious pollution to atmosphere, the mankind's existence and quality of life are affected, for example the sulphur in tunnel cave fuel has formed acid rain in atmosphere, cause the agriculture underproduction, harmful small dust in the waste gas that tunnel cave is discharged in addition affects the mankind's health, contaminated environment.For this reason, people adopt some desulfurization and dust-removal methods to process tunnel cave waste gas, make tunnel cave waste gas qualified discharge.
At present, people mainly arrange desulfation dust-extraction device tunnel cave waste gas are carried out desulfurization and dedusting and meets environmental requirement in the top of the kiln by tunnel cave.The patent No. is 201120328277.9 Chinese utility model patent, a kind of mobile tunnel furnace desulfation dust-extraction device is disclosed, comprise liquid shower, the feed liquor house steward and the water pump that are connected with liquid shower, waste reflux pipe with desulfation dust-extraction device bottom connection, described desulfation dust-extraction device is arranged on the top of mobile tunnel furnace dryer section, be provided with the annular reservoir concentric with track in mobile tunnel furnace track inner side, the outlet of desulfation dust-extraction device feed liquor house steward's entrance and waste reflux pipe is placed in annular reservoir.This mobile tunnel furnace desulfation dust-extraction device is in the time of work, the main limewash spraying by liquid shower falls into waste reflux pipe after reacting with sulfur dioxide and generating calcium sulfate, flue dust in waste gas falls into equally waste reflux pipe after spray, and is back in annular reservoir and reuses.Whole desulfurization dust-removing technique need guarantee that constantly water supply and draining just can complete the desulfurization and dedusting of waste gas, complex operation, and make its temperature higher owing to baking bricks in tunnel cave, the limewash of liquid shower ejection is easily vaporized, assimilation effect to sulfur dioxide or flue dust is poor, and desulfurization dust-removing efficiency is low.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, and provide a kind of impurity desulfurization device and technique of tunnel cave waste gas, this impurity desulfurization device is reasonable in design, construction investment is few, floor space is little, the impurity desulfurization technological operation that adopts this impurity desulfurization device to carry out is easy, good dedusting effect, desulfuration efficiency is high.
The present invention is achieved through technology.
A kind of impurity desulfurization device of tunnel cave waste gas, comprise directly burning type tunnel, described directly burning type tunnel comprises the baking zone and the high-temperature firing district that set gradually, described directly burning type tunnel also comprises oven dry buffering area, gas sampling passage and brick net, described oven dry buffering area is arranged at the front of described baking zone, described oven dry buffering area and described gas sampling channel connection, described brick net is arranged in described directly burning type tunnel, described impurity desulfurization device also comprises crosswind road, wind passage mouth and ventilating damper, described crosswind road is opened in the inside of the kiln wall of the both sides in described directly burning type tunnel, the top in described crosswind road offers air lock mouth, described ventilating damper is movably set in described air lock mouth, described wind passage mouth is arranged at the bottom in described crosswind road and is communicated with described directly burning type tunnel, described directly burning type tunnel, described gas sampling passage, described crosswind road, described wind passage mouth and described air lock mouth form circulation air path system.
Wherein, in described gas sampling passage, be provided with air exhauster.
Wherein, the length of described oven dry buffering area is 30-40 m, and the length in described directly burning type tunnel is 120-140 m.
Wherein, described brick net comprises two-layer above brick stratum reticulare, and described brick stratum reticulare comprises horizontal brick stratum reticulare and longitudinal brick stratum reticulare, and the fragment of brick that described horizontal brick stratum reticulare is placed by some horizontal directions forms, and the fragment of brick that the some vertical directions of described longitudinal brick stratum reticulare are placed forms.
Wherein, described horizontal brick stratum reticulare and described longitudinal brick stratum reticulare include 4 fragments of brick that are set up in parallel.
Wherein, every described fragment of brick is solid environmental protection brick, and the length of described fragment of brick is 210-216mm, and width is 105-108 mm, is highly 38-43mm.
Wherein, horizontal longitudinal piled bricks of the stacking formation of brick stratum reticulare square crossing described in brick stratum reticulare and one deck described in one deck, some described piled bricks are at the stacking formation brick row of vertical direction, and described brick net comprises 10 above described bricks row.
Wherein, the quantity of described brick row is 10 row, and the brick stratum reticulare of the brick row of the 1st, the 10th row is 11 layers, and the brick stratum reticulare of the brick row of the 2nd, the 9th row is 12 layers, 3rd, the brick stratum reticulare of the brick row of the 8th row is 13 layers, and the brick stratum reticulare of the brick row of the 4th, the 5th, the 6th, the 7th row is 14 layers.
Wherein, described brick net also comprises the first bridging, the second bridging, and described the first bridging level is layed in the top of described brick row, and described the first bridging is a fragment of brick; Described second puts up a bridge is arranged between described the 7th, the 8th layer of brick stratum reticulare, and described the second bridging is the fragment of brick of two parallel placements.
Wherein, the impurity desulfurization technique that a kind of impurity desulfurization device of tunnel cave waste gas carries out, is characterized in that: it comprises the following steps:
A, a part of waste gas that high-temperature firing district is produced are introduced and are dried buffering area, and waste gas is extracted out and discharges from gas sampling passage with air exhauster through drying after the brick net of buffering area;
Another part waste gas that B, high-temperature firing district produce is by wind passage mouth approaching side air channel, open ventilating damper, the cold wind of tunnel cave outside passes through air lock mouth approaching side air channel and mixes with the waste gas in crosswind road, and the waste gas of mixing reenters high-temperature firing district by wind passage mouth again;
C, closed ventilating damper, in step B, the waste gas of the mixing in high-temperature firing district, by wind passage mouth approaching side air channel, in the time that the waste gas mixing arrives the crosswind road of baking zone, is evacuated to baking zone by the waste gas of mixing from wind passage mouth, and the waste gas of mixing is through the brick net of baking zone;
D, the waste gas through the mixing of brick net in step C is extracted out by air exhauster, and discharged from gas sampling passage.
Beneficial effect of the present invention is: a kind of impurity desulfurization device of tunnel cave waste gas, directly utilize the brick net of placing sintering in tunnel cave as screen pack, and the circulation air path system of tunnel cave carry out impurity desulfurization processing to tunnel cave waste gas, reasonable in design, construction investment is few, and floor space is little; Due to the suction-operated of coarse brick face and the adhesiveness of sulfide of brick net, brick netting gear is for the filtration of screen pack, can carry out efficient impurity desulfurization to tunnel cave waste gas, and tunnel cave waste gas can repeatedly pass brick net under the effect of circulation air path system, tunnel cave waste gas is effectively purified, greatly reduce the pollution of tunnel cave waste gas to air.
A kind of impurity desulfurization technique of tunnel cave waste gas, repeatedly can make tunnel cave waste gas effectively be purified by circulation air path system and brick net tunnel cave waste gas, and impurity desulfurization process need be by the medium such as water or chemical reagent, impurity desulfurization technological operation is easy, good dedusting effect, desulfuration efficiency is high, and tunnel cave waste gas sulfur content reduces 80%-90%.
Accompanying drawing explanation
Fig. 1 is the structural representation of the impurity desulfurization device of a kind of tunnel cave waste gas of the present invention.
Fig. 2 is the Section View along A-A in Fig. 1.
Fig. 3 is the Section View along B-B in Fig. 1.
Fig. 4 is the structural representation of the brick row of the 1st row of the impurity desulfurization device of a kind of tunnel cave waste gas of the present invention.
Reference numeral comprises:
1-directly burning type tunnel, 2-crosswind road, 3-wind passage mouth, 4-ventilating damper, 5-air lock mouth, 6-oven dry buffering area, 7-gas sampling passage, 8-air exhauster, 9-baking zone, 10-high-temperature firing district, 11-laterally brick stratum reticulare, 12-longitudinally brick stratum reticulare, 13-the first puts up a bridge, and 14-the second puts up a bridge.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.
embodiment mono-.
As shown in Figure 1 to Figure 3, the impurity desulfurization device of a kind of tunnel cave waste gas of the present embodiment, it comprises directly burning type tunnel 1, described directly burning type tunnel 1 comprises the baking zone 9 and the high-temperature firing district 10 that set gradually, described directly burning type tunnel 1 also comprises dries buffering area 6, gas sampling passage 7 and brick net, described oven dry buffering area 6 is arranged at the front of described baking zone 9, described oven dry buffering area 6 is communicated with described gas sampling passage 7, described brick net is arranged in described directly burning type tunnel 1, described impurity desulfurization device also comprises crosswind road 2, wind passage mouth 3 and ventilating damper 4, described crosswind road 2 is opened in the inside of the kiln wall of the both sides in described directly burning type tunnel 1, the top in described crosswind road 2 offers air lock mouth 5, described ventilating damper 4 is movably set in described air lock mouth 5, described wind passage mouth 3 is arranged at the bottom in described crosswind road 2 and is communicated with described directly burning type tunnel 1, described directly burning type tunnel 1, described gas sampling passage 7, described crosswind road 2, described wind passage mouth 3 and described air lock mouth 5 form circulation air path system.
Impurity desulfurization device of the present invention, directly utilizes the brick net of placing sintering in tunnel cave as screen pack, and the circulation air path system of tunnel cave carries out impurity desulfurization processing to tunnel cave waste gas, and reasonable in design, construction investment is few, and floor space is little; Due to the suction-operated of coarse brick face and the adhesiveness of sulfide of brick net, brick netting gear is for the filtration of screen pack, can carry out efficient impurity desulfurization to tunnel cave waste gas, and tunnel cave waste gas can repeatedly pass brick net under the effect of circulation air path system, tunnel cave waste gas is effectively purified, greatly reduce the pollution of tunnel cave waste gas to air.
In the present embodiment, in described gas sampling passage 7, be provided with air exhauster 8.Set up and dry buffering area 6, can increase the time of staying of waste gas in directly burning type tunnel 1, increase the contact area of waste gas and brick net, the impurity-eliminating effect of waste gas is better, when waste gas is through after drying the brick net of buffering area 6, waste gas after treatment is taken away and discharged by gas sampling passage 7 by air exhauster 8.In addition, when air exhauster 8 is worked, by gas sampling passage 7, the part hot gas of drying in buffering area 6 is taken away, the temperature of drying buffering area 6 reduces gradually, hot gas absorbs at the brick net of taking first process oven dry buffering area 6 in process away, make to dry the temperature of buffering area 6 and the comparatively balance of temperature in directly burning type tunnel 1, guarantee that brick net can not produce because of the acute variation of temperature the quality problems of deformation and explosion.
In the present embodiment, the length of described oven dry buffering area 6 is 30-40 m, and the length in described directly burning type tunnel 1 is 120-140 m.The length of drying buffering area 6 is 30-40 m, directly burning type tunnel 1 has lengthened the length of drying section, make waste gas that high-temperature firing district 10 produces in the time that air exhauster 8 is worked, there is the sufficient flowing space, increase the contact area of waste gas and brick net, waste gas is more effectively delivered in brick net, waste gas is carried out to more efficient impurity desulfurization.
In the present embodiment, the impurity desulfurization technique that a kind of impurity desulfurization device of tunnel cave waste gas carries out, it comprises the following steps: A, a part of waste gas that high-temperature firing district 10 is produced are introduced and dried buffering area 6, and waste gas is extracted out and discharged from gas sampling passage 7 with air exhauster 8 through drying after the brick net of buffering area 6; Another part waste gas that B, high-temperature firing district 10 produce is by wind passage mouth 3 approaching side air channels 2, open ventilating damper 4, the cold wind of tunnel cave outside passes through air lock mouth 5 approaching side air channels 2 and mixes with the waste gas in crosswind road 2, and the waste gas of mixing reenters high-temperature firing district 10 by wind passage mouth 3 again; C, closed ventilating damper 4, in step B, the waste gas of the mixing in high-temperature firing district 10 is by wind passage mouth 3 approaching side air channels 2, in the time that the waste gas mixing arrives the crosswind road 2 of baking zone 9, the waste gas of mixing is evacuated to baking zone 9 from wind passage mouth 3, the waste gas of mixing is through the brick net of baking zone 9; D, the waste gas through the mixing of brick net in step C is extracted out by air exhauster 8, and discharged from gas sampling passage 7.Repeatedly can make tunnel cave waste gas effectively be purified by circulation air path system and brick net tunnel cave waste gas, and impurity desulfurization process need be by the medium such as water or chemical reagent, impurity desulfurization technological operation is easy, good dedusting effect, desulfuration efficiency is high, and tunnel cave waste gas sulfur content reduces 80%-90%.
In the present embodiment, described brick net comprises two-layer above brick stratum reticulare, described brick stratum reticulare comprises horizontal brick stratum reticulare 11 and longitudinal brick stratum reticulare 12, and the fragment of brick that described horizontal brick stratum reticulare 11 is placed by some horizontal directions forms, and the fragment of brick that the some vertical directions of described longitudinal brick stratum reticulare 12 are placed forms; Longitudinal piled bricks of the brick stratum reticulare stacking formation of 12 square crossing described in horizontal brick stratum reticulare 11 and one deck described in one deck, some described piled bricks are at the stacking formation brick row of vertical direction, and described brick net comprises 10 above described bricks row; The quantity of described brick row is 10 row, and the brick stratum reticulare of the brick row of the 1st, the 10th row is 11 layers, and the brick stratum reticulare of the brick row of the 2nd, the 9th row is 12 layers, and the brick stratum reticulare of the brick row of the 3rd, the 8th row is 13 layers, and the brick stratum reticulare of the brick row of the 4th, the 5th, the 6th, the 7th row is 14 layers.Brick stratum reticulare intersects in length and breadth, the close structure of brick net is stable, and the quantity of brick row is more, the area of section that brick row form is large, and this closely brick web frame the cross section void area of brick net is greatly reduced, coordinating king-size length is the directly burning type tunnel 1 of 30-40m, and brick net can effectively absorb the objectionable impurities in waste gas, purifying exhaust air.
In the present embodiment, described horizontal brick stratum reticulare 11 and described longitudinal brick stratum reticulare 12 include 4 fragments of brick that are set up in parallel, and described fragment of brick is solid environmental protection brick, and the length of described fragment of brick is 210-216mm, and width is 105-108 mm, is highly 38-43mm.Replace original length and be 240mm, width and be 115mm, be highly the solid clay brick of 53mm, the volume of fragment of brick of the present invention reduces slightly, the length-width ratio of fragment of brick increases, make piled bricks become existing 4 × 4 every buttress from original 3 × 3 every buttress, it is a buttress that piled bricks adopts 8 bricks, is concentrated type piled bricks, has optimized the pore size between piled bricks, in the density that increases brick net, avoid causing because density is excessive air-flow obstructed, improved the effect of filtering.
embodiment bis-.
The difference of the present embodiment and embodiment mono-is: described in the present embodiment, brick net also comprises the first bridging 13, described first 13 levels of putting up a bridge are layed in the top of described brick row, described the first bridging 13 is a fragment of brick, described brick net also comprises the second bridging 14, described the second bridging 14 is arranged between described the 7th, the 8th layer of brick stratum reticulare, and described the second bridging 14 is the fragment of brick of two parallel placements.Be positioned at first the putting up a bridge 13 for firm brick row and reduce space of top of brick row, second puts up a bridge 14 can firmly support the brick layer being stacked on the second bridging 14, makes brick array structure more stable, and then guarantees the filtration of brick net.
Other structure of the present embodiment is identical with embodiment mono-, does not repeat them here.
The above embodiment, it is preferred embodiments of the present invention, be not to limit the scope of the present invention, the equivalence of doing according to structure, feature and principle described in the present patent application the scope of the claims therefore all changes or modifies, and all should comprise in patent claim of the present invention.
Claims (10)
1. the impurity desulfurization device of a tunnel cave waste gas, comprise directly burning type tunnel, described directly burning type tunnel comprises the baking zone and the high-temperature firing district that set gradually, it is characterized in that: described directly burning type tunnel also comprises oven dry buffering area, gas sampling passage and brick net, described oven dry buffering area is arranged at the front of described baking zone, described oven dry buffering area and described gas sampling channel connection, described brick net is arranged in described directly burning type tunnel, described impurity desulfurization device also comprises crosswind road, wind passage mouth and ventilating damper, described crosswind road is opened in the inside of the kiln wall of the both sides in described directly burning type tunnel, the top in described crosswind road offers air lock mouth, described ventilating damper is movably set in described air lock mouth, described wind passage mouth is arranged at the bottom in described crosswind road and is communicated with described directly burning type tunnel, described directly burning type tunnel, described gas sampling passage, described crosswind road, described wind passage mouth and described air lock mouth form circulation air path system.
2. the impurity desulfurization device of a kind of tunnel cave waste gas according to claim 1, is characterized in that: in described gas sampling passage, be provided with air exhauster.
3. the impurity desulfurization device of a kind of tunnel cave waste gas according to claim 1, is characterized in that: the length of described oven dry buffering area is 30-40 m, and the length in described directly burning type tunnel is 120-140 m.
4. the impurity desulfurization device of a kind of tunnel cave waste gas according to claim 1, it is characterized in that: described brick net comprises two-layer above brick stratum reticulare, described brick stratum reticulare comprises horizontal brick stratum reticulare and longitudinal brick stratum reticulare, the fragment of brick that described horizontal brick stratum reticulare is placed by some horizontal directions forms, and the fragment of brick that described longitudinal brick stratum reticulare is placed by some vertical directions forms.
5. the impurity desulfurization device of a kind of tunnel cave waste gas according to claim 4, is characterized in that: described horizontal brick stratum reticulare and described longitudinal brick stratum reticulare include 4 fragments of brick that are set up in parallel.
6. the impurity desulfurization device of a kind of tunnel cave waste gas according to claim 5, is characterized in that: every described fragment of brick is solid environmental protection brick, and the length of described fragment of brick is 210-216mm, and width is 105-108 mm, is highly 38-43mm.
7. the impurity desulfurization device of a kind of tunnel cave waste gas according to claim 4, it is characterized in that: longitudinal piled bricks of the stacking formation of brick stratum reticulare square crossing described in horizontal brick stratum reticulare and one deck described in one deck, some described piled bricks are at the stacking formation brick row of vertical direction, and described brick net comprises 10 above described brick row.
8. the impurity desulfurization device of a kind of tunnel cave waste gas according to claim 7, it is characterized in that: the quantity of described brick row is 10 row, 1st, the brick stratum reticulare of the brick row of the 10th row is 11 layers, 2nd, the brick stratum reticulare of the brick row of the 9th row is 12 layers, 3rd, the brick stratum reticulare of the brick row of the 8th row is 13 layers, and the brick stratum reticulare of the brick row of the 4th, the 5th, the 6th, the 7th row is 14 layers.
9. the impurity desulfurization device of a kind of tunnel cave waste gas according to claim 8, is characterized in that: described brick net also comprises the first bridging, the second bridging, and described the first bridging level is layed in the top of described brick row, and described the first bridging is a fragment of brick; Described second puts up a bridge is arranged between described the 7th, the 8th layer of brick stratum reticulare, and described the second bridging is the fragment of brick of two parallel placements.
10. the impurity desulfurization technique of carrying out according to the impurity desulfurization device of a kind of tunnel cave waste gas described in claim 1 to 9 any one, is characterized in that: it comprises the following steps:
A, a part of waste gas that high-temperature firing district is produced are introduced and are dried buffering area, and waste gas is extracted out and discharges from gas sampling passage with air exhauster through drying after the brick net of buffering area;
Another part waste gas that B, high-temperature firing district produce is by wind passage mouth approaching side air channel, open ventilating damper, the cold wind of tunnel cave outside passes through air lock mouth approaching side air channel and mixes with the waste gas in crosswind road, and the waste gas of mixing reenters high-temperature firing district by wind passage mouth again;
C, closed ventilating damper, in step B, the waste gas of the mixing in high-temperature firing district, by wind passage mouth approaching side air channel, in the time that the waste gas mixing arrives the crosswind road of baking zone, is evacuated to baking zone by the waste gas of mixing from wind passage mouth, and the waste gas of mixing is through the brick net of baking zone;
D, the waste gas through the mixing of brick net in step C is extracted out by air exhauster, and discharged from gas sampling passage.
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| CN201210351340.XA CN102829624B (en) | 2012-09-20 | 2012-09-20 | Desulfuration and impurity removal device and process of tunnel kiln exhaust gas |
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| CN201210351340.XA CN102829624B (en) | 2012-09-20 | 2012-09-20 | Desulfuration and impurity removal device and process of tunnel kiln exhaust gas |
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| CN103954126B (en) * | 2014-04-14 | 2019-02-05 | 周大林 | The vertical Refining Equipmeut for Desulfuration in Gas of annular mobile tunnel oven |
| CN106643190A (en) * | 2017-01-24 | 2017-05-10 | 成都中祥天宇环保科技有限公司 | Annular mobile tunnel kiln flue gas desulfurization device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999003567A1 (en) * | 1997-07-16 | 1999-01-28 | William Frederick Boylett | Absorbent material, apparatus and method for exhaust gas cleaning |
| JP3263906B2 (en) * | 1992-11-12 | 2002-03-11 | 高砂工業株式会社 | Tunnel kiln for firing carbon products |
| CN201311198Y (en) * | 2008-01-30 | 2009-09-16 | 王枫 | Converse multi-point combustion-type smoke and dust removing coal-burning tunnel kiln |
| CN202254782U (en) * | 2011-09-03 | 2012-05-30 | 魏胜英 | Desulfurizing and dedusting device for movable tunnel kiln |
-
2012
- 2012-09-20 CN CN201210351340.XA patent/CN102829624B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3263906B2 (en) * | 1992-11-12 | 2002-03-11 | 高砂工業株式会社 | Tunnel kiln for firing carbon products |
| WO1999003567A1 (en) * | 1997-07-16 | 1999-01-28 | William Frederick Boylett | Absorbent material, apparatus and method for exhaust gas cleaning |
| CN201311198Y (en) * | 2008-01-30 | 2009-09-16 | 王枫 | Converse multi-point combustion-type smoke and dust removing coal-burning tunnel kiln |
| CN202254782U (en) * | 2011-09-03 | 2012-05-30 | 魏胜英 | Desulfurizing and dedusting device for movable tunnel kiln |
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Effective date of registration: 20171106 Address after: Group of villagers Zhongtang town Chajiao Branch Park 523000 Guangdong city of Dongguan province No. 2 lane four Co-patentee after: Li Yanming Patentee after: Li Zhideng Address before: 523049 Guangdong city of Huizhou province Tong Hu Zhen Gang tou Cun Huizhou Fang Cheng Industrial Co., Ltd. Patentee before: Huizhou Fangcheng Industrial Co.,Ltd. |