CN219836246U - Cloth bag dust remover with desulfurization and denitration functions - Google Patents
Cloth bag dust remover with desulfurization and denitration functions Download PDFInfo
- Publication number
- CN219836246U CN219836246U CN202223182724.1U CN202223182724U CN219836246U CN 219836246 U CN219836246 U CN 219836246U CN 202223182724 U CN202223182724 U CN 202223182724U CN 219836246 U CN219836246 U CN 219836246U
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- China
- Prior art keywords
- connecting pipe
- water mist
- dust collector
- cooling tower
- guide plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000428 dust Substances 0.000 title claims abstract description 46
- 239000004744 fabric Substances 0.000 title claims abstract description 26
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 16
- 230000023556 desulfurization Effects 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 57
- 239000003595 mist Substances 0.000 claims abstract description 41
- 238000001816 cooling Methods 0.000 claims abstract description 38
- 239000007921 spray Substances 0.000 claims abstract description 15
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 13
- 239000003054 catalyst Substances 0.000 claims abstract description 12
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims description 3
- 239000011229 interlayer Substances 0.000 claims description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 22
- 239000003546 flue gas Substances 0.000 abstract description 22
- 239000007789 gas Substances 0.000 abstract description 12
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 6
- 239000002245 particle Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 235000011116 calcium hydroxide Nutrition 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- RRWPVHYLVNVOBL-UHFFFAOYSA-L [Ca++].[O-]O[O-] Chemical compound [Ca++].[O-]O[O-] RRWPVHYLVNVOBL-UHFFFAOYSA-L 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a bag-type dust collector with desulfurization and denitration functions, which comprises a bag-type dust collector body, wherein a water mist cooling tower is arranged at the air inlet end corresponding to the bag-type dust collector body, the air inlet end of the bag-type dust collector body is communicated with the air outlet end of the water mist cooling tower through a connecting pipe, a plurality of spray heads are arranged on the side wall of the top of the water mist cooling tower, a guide plate is arranged in the connecting pipe, the side wall is net-shaped, and a desulfurizing agent is filled in a cavity. Because the denitration process needs to be carried out at 200-400 ℃, a catalyst needs to be added at the same time, and kiln tail gas enters the cloth belt dust remover and is just high-temperature flue gas, the flue gas temperature does not need to be additionally heated to be increased, the flue gas temperature is properly reduced, the forward direction of the denitration reaction is met, and meanwhile, the temperature is reduced to an acceptable range of the cloth belt dust remover.
Description
Technical Field
The utility model belongs to the technical field of kiln equipment, and particularly relates to a bag-type dust remover with a desulfurization and denitration function.
Background
The particles generated by the industrial kiln way are derived from the combustion of fuel and the sediment on the stone surface, the particle size distribution of the particles is wider, and the particles contain SO at the same time 2 And NO x Harmful gas can not be directly discharged into the atmosphere, and kiln gas treatment of lime kiln enterprises in the existing furnace burden industry aims at controlling the discharge concentration of kiln gas particles, sulfur dioxide and nitrogen oxides to be 10, 100 and 100mg/m respectively 3 . The kiln tail gas is treated by a whole set of treatment equipment, namely a bag-type dust remover, a denitration tower, a cooling tower, a desulfurization tower, an electrostatic absorber and the like. And the bag-type dust collector is positioned at the front end of the equipment, and the flue gas temperature needs to be reasonably controlled and a high-temperature-resistant material bag is selected in consideration of the condition that the flue gas temperature is high, otherwise, the bag-type dust collector cannot stably operate for a long time.
Kiln gas enters a dust remover from the kiln top through the heat radiation effect of a wind collecting pipeline, the temperature is generally 120-300 ℃, the cloth bag of the existing high-temperature resistant material is a film-covered cloth bag of 60% glass fiber and 30% aramid fiber, the bearable temperature range is 185-250 ℃, and the filtering wind speed is not more than 0.7m 3 And/min, the impact of high-temperature flue gas directly influences the service life of the dust remover. Therefore, the utility model is applied according to the installation of the bag-type dust collectorCharacterized in that the front end of the bag-type dust collector is processed, and water mist cooling equipment is arranged, and the device has the effects of rough desulfurization and denitration.
Disclosure of Invention
The utility model aims to provide a cloth bag dust collector with desulfurization and denitration functions, wherein the front end of the cloth bag dust collector is processed according to the installation and application characteristics of the cloth bag dust collector, and water mist cooling equipment is installed, so that the cloth bag dust collector has rough desulfurization and denitration effects.
In order to solve the technical problems, the utility model is realized by the following technical scheme:
the cloth bag dust remover with the desulfurization and denitration functions comprises a cloth bag dust remover body, wherein a water mist cooling tower is arranged at the air inlet end corresponding to the cloth bag dust remover body, and the air inlet end of the cloth bag dust remover body is communicated with the air outlet end of the water mist cooling tower through a connecting pipe;
the water mist cooling tower is of a shell structure, the center of the top is communicated with an air inlet pipe, the side part of the lower part is communicated with a connecting pipe, a plurality of spray heads are arranged on the side wall of the top of the water mist cooling tower and are arranged around the circumference of the air inlet pipe, and a catalyst honeycomb plate is arranged below the corresponding spray heads in the inner cavity of the water mist cooling tower;
the connecting pipe is internally provided with a guide plate, a cavity is arranged in the guide plate, the side wall is netty, and the cavity is filled with a desulfurizing agent.
Further, the cross section of the connecting pipe is square, the guide plate is plate-shaped, and extends from one side to the other side along the radial direction of the connecting pipe, and a plurality of sandwich-type airflow channels are formed in the gas flowing direction of the connecting pipe.
Further, the upper side of the connecting pipe corresponds to the upper side of the guide plate and is correspondingly grooved, the guide plate is inserted into the groove at the upper side of the connecting pipe for detachable installation, the upper side of the guide plate is opened, the guide plate is horizontally provided with a supporting plate corresponding to the opening side, and the guide plate is supported at the position of the groove through the supporting plate.
Further, the clamping cover is arranged on the upper side of the connecting pipe, the front side and the rear side of the clamping cover are bent at 90 degrees to form a folded plate, the folded plate is bent at 90 degrees to form a supporting part, and side walls for supporting the supporting part are arranged on the front side and the rear side of the connecting pipe.
Further, an ash bucket is arranged at the bottom of the connecting pipe, the ash bucket is funnel-shaped and is communicated with the bottom of the connecting pipe, and a sealing cover is arranged at the bottom of the ash bucket.
Further, the bottom of the water mist cooling tower is funnel-shaped and is communicated with a drain pipe.
The utility model has the following beneficial effects: the top of the water mist cooling tower is dome-shaped, the center of the water mist cooling tower is communicated with the air inlet pipe, the spray head is arranged on the circumference side of the water mist cooling tower corresponding to the air inlet pipe, high-temperature flue gas sprayed out of the air inlet pipe is wrapped by water mist, short-time mixing is carried out in the water mist cooling tower, the water mist is formed by tiny liquid drops, and then the high-temperature part evaporates to take away heat, so that a low-temperature and simple denitration process is realized. Because the denitration process needs to be carried out at 200-400 ℃, a catalyst needs to be added at the same time, and kiln tail gas enters the cloth belt dust remover and is just high-temperature flue gas, the flue gas temperature does not need to be additionally heated to be increased, the flue gas temperature is properly reduced, the forward direction of the denitration reaction is met, and meanwhile, the temperature is reduced to an acceptable range of the cloth belt dust remover.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present utility model, the drawings used for describing the embodiments will be briefly described below.
Fig. 1: the utility model is a schematic structural diagram.
Fig. 2: the structure of the connecting pipe is schematically shown.
Fig. 3: the connecting pipe disassembly structure is schematically shown.
Fig. 4: the flow guide plate structure of the utility model is schematically shown.
In the drawings, the list of components represented by the various numbers is as follows: the cloth bag dust collector body 1, the water mist cooling tower 2, the connecting pipe 3, the air inlet pipe 21, the spray head 23, the catalyst honeycomb plate 22, the guide plate 4, the supporting plate 41, the clamping cover 5, the folded plate 51, the side wall 31, the ash bucket 32, the sealing cover 33 and the drain pipe 24.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
As shown in fig. 1-4: the cloth bag dust remover with the desulfurization and denitration functions comprises a cloth bag dust remover body 1, wherein a water mist cooling tower 2 is arranged at the air inlet end corresponding to the cloth bag dust remover body 1, and the air inlet end of the cloth bag dust remover body 1 is communicated with the air outlet end of the water mist cooling tower 2 through a connecting pipe 3;
the water mist cooling tower 2 is of a shell structure, the center of the top is communicated with the air inlet pipe 21, the side part of the lower part is communicated with the connecting pipe 3, a plurality of spray heads 23 are arranged on the side wall of the top of the water mist cooling tower 2, the spray heads 23 are arranged around the circumference of the air inlet pipe, and a catalyst honeycomb plate 22 is arranged below the corresponding spray heads 23 in the inner cavity of the water mist cooling tower 2;
the catalyst honeycomb plate catalyst is V2O5-WO3 (MoO 3)/TiO 2 series TiO2 serving as a main carrier and V2O5 serving as a main active component. Is used for realizing denitration reaction at the intersection temperature, and the reaction temperature is controlled to be the catalyst 4NO+4NH 3 +O 2 →4N 2 +6H 2 O, catalyst NO+NO 2 +2NH 3 →2N 2 +3H 2 O. The reaction can be effectively carried out within the temperature range of 200-450 ℃ by using a proper catalyst generally, the water mist spray head is communicated with the same water inlet pipe and sprays out from the spray head through high pressure to form water mist, wherein the water inlet pipe is water added with a denitration agent, the denitration agent adopts ammonia water, the water temperature is controlled, and the high-temperature flue gas is cooled through the water mist.
The top of the water mist cooling tower is dome-shaped, the center of the water mist cooling tower is communicated with the air inlet pipe, the spray head is arranged on the circumference side of the water mist cooling tower corresponding to the air inlet pipe, high-temperature flue gas sprayed out of the air inlet pipe is wrapped by water mist, short-time mixing is carried out in the water mist cooling tower, the water mist is formed by tiny liquid drops, and then the high-temperature part evaporates to take away heat, so that a low-temperature and simple denitration process is realized. Because the denitration process needs to be carried out at 200-400 ℃, a catalyst needs to be added at the same time, and kiln tail gas enters the cloth belt dust remover and is just high-temperature flue gas, the flue gas temperature does not need to be additionally heated to be increased, the flue gas temperature is properly reduced, the forward direction of the denitration reaction is met, and meanwhile, the temperature is reduced to an acceptable range of the cloth belt dust remover.
The connecting pipe 3 is internally provided with a guide plate 4, a cavity is arranged in the guide plate 4, the side wall is netlike, and the cavity is filled with desulfurizing agent. The flue gas through water smoke cooling tower realizes cooling and simple denitration, but contains higher steam and vapor therein, and steam and vapor directly get into strap dust remover and "paste the bag" easily, and strap dust remover lateral wall temperature is lower simultaneously, and condensation is the drop of water after the rapid cooling of high temperature vapor contact strap dust remover lateral wall, appears the condensation phenomenon, and the drop of water mixes with the dust that filters the interception, and easy caking leads to the clearance degree of difficulty of later stage back to storehouse to increase. Therefore, the guide plate is arranged in the connecting pipe, and filters vapor and water vapor in the flue gas on the premise of not influencing the normal gas flow rate, so that the humidity of the flue gas in the bag-type dust collector is reduced. The desulfurizing agent filled in the guide plate is generally slaked lime, so that the desulfurizing agent not only absorbs water, but also contains calcium oxide as a main component, and can react with sulfur dioxide in the flue gas to generate calcium trioxide precipitate, so that the sulfur dioxide in the flue gas is further filtered simply.
As shown in fig. 2: the cross section of the connecting pipe 3 is square, the guide plate 4 is plate-shaped, and extends from one side to the other side along the radial direction of the connecting pipe 3, and a plurality of interlayer gas flow channels are formed in the gas flow direction of the connecting pipe 3. When the flue gas flows through the connecting pipe, the flue gas is divided into a plurality of channels by the guide plate, and the desulfurizing agent filled in the guide plate can absorb sulfides, water vapor and water vapor.
As shown in fig. 3: the upper side of the connecting pipe 3 corresponds to the upper side of the guide plate 4 and is provided with a groove, a strip-shaped groove corresponds to the guide plate, the guide plate 4 is detachably installed by being inserted into the groove at the upper side of the connecting pipe, the upper side of the guide plate 4 is opened, the guide plate 4 corresponds to the opening side and is provided with a horizontally arranged support plate 41, and the guide plate is supported at the position of the groove through the support plate 41. The backup pad is as supporting part, supports in the notch of fluting position, and the upside opening of guide plate for change the desulfurizing agent, the guide plate is convenient for dismantle and change inside desulfurizing agent.
The upper side of the connecting pipe 3 is provided with a clamping cover 5, the front side and the rear side of the clamping cover 5 are bent at 90 degrees to form a folded plate 51, the folded plate 51 is bent at 90 degrees to form a supporting part, and the front side and the rear side of the connecting pipe 3 are provided with side walls 31 for supporting the supporting part. The clamping cover is used for covering the upper side of the connecting pipe and is used for shielding the upper side opening of the baffle plate to prevent pollution and rainwater.
As shown in fig. 1: the ash bucket 32 is installed to the bottom of connecting pipe 3, and ash bucket 32 is the funnel form, communicates with connecting pipe 3 bottom, and the bottom of ash bucket 32 has sealed lid 33. The device is used for collecting the desulfurizing agent leaked from the baffle plate, most of the desulfurizing agent is slaked lime, and the ash is easy to hang.
The bottom of the water mist cooling tower 2 is funnel-shaped and is communicated with a drain pipe 24. The water inlet pipe and the water outlet pipe are connected in series with valves, and the water outlet pipe is used for discharging water formed by water drops gathering at the bottom of the water mist cooling tower.
The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model.
Claims (6)
1. A sack cleaner with desulfurization, denitration function, its characterized in that:
the water mist cooling device comprises a cloth bag dust collector body (1), wherein a water mist cooling tower (2) is arranged at the air inlet end corresponding to the cloth bag dust collector body (1), and the air inlet end of the cloth bag dust collector body (1) is communicated with the air outlet end of the water mist cooling tower (2) through a connecting pipe (3);
the water mist cooling tower (2) is of a shell structure, the center of the top is communicated with the air inlet pipe (21), the side part of the lower part is communicated with the connecting pipe (3), a plurality of spray heads (23) are arranged on the side wall of the top of the water mist cooling tower (2), the spray heads (23) are arranged around the circumference of the air inlet pipe, and a catalyst honeycomb plate (22) is arranged below the corresponding spray heads (23) in the inner cavity of the water mist cooling tower (2);
a guide plate (4) is arranged in the connecting pipe (3), a cavity is arranged in the guide plate (4), the side wall is netty, and a desulfurizing agent is filled in the cavity.
2. The bag-type dust collector with desulfurization and denitrification functions according to claim 1, which is characterized in that: the cross section of the connecting pipe (3) is square, the guide plate (4) is plate-shaped, and extends from one side to the other side along the radial direction of the connecting pipe (3), and a plurality of interlayer airflow channels are formed in the gas flowing direction of the connecting pipe (3).
3. The bag-type dust collector with desulfurization and denitrification functions according to claim 2, which is characterized in that: the upper side of the connecting pipe (3) corresponds to the upper side of the guide plate (4) to be correspondingly grooved, the guide plate (4) is inserted into the groove at the upper side of the connecting pipe to be detachably installed, the upper side of the guide plate (4) is opened, the guide plate (4) corresponds to the opening side to be provided with a horizontally arranged supporting plate (41), and the guide plate is supported at the grooved position through the supporting plate (41).
4. A bag-type dust collector with desulfurization and denitrification functions according to claim 3, characterized in that: the clamping cover (5) is arranged on the upper side of the connecting pipe (3), the front side and the rear side of the clamping cover (5) are bent at 90 degrees to form a folded plate (51), the folded plate (51) is bent at 90 degrees to form a supporting part, and side walls (31) for supporting the supporting part are arranged on the front side and the rear side of the connecting pipe (3).
5. The bag-type dust collector with desulfurization and denitrification functions according to claim 1 or 2, wherein: the ash bucket (32) is installed at the bottom of the connecting pipe (3), the ash bucket (32) is funnel-shaped and communicated with the bottom of the connecting pipe (3), and the bottom of the ash bucket (32) is provided with a sealing cover (33).
6. The bag-type dust collector with desulfurization and denitrification functions according to claim 1, which is characterized in that: the bottom of the water mist cooling tower (2) is funnel-shaped and is communicated with a drain pipe (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223182724.1U CN219836246U (en) | 2022-11-28 | 2022-11-28 | Cloth bag dust remover with desulfurization and denitration functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223182724.1U CN219836246U (en) | 2022-11-28 | 2022-11-28 | Cloth bag dust remover with desulfurization and denitration functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219836246U true CN219836246U (en) | 2023-10-17 |
Family
ID=88303211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223182724.1U Active CN219836246U (en) | 2022-11-28 | 2022-11-28 | Cloth bag dust remover with desulfurization and denitration functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219836246U (en) |
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2022
- 2022-11-28 CN CN202223182724.1U patent/CN219836246U/en active Active
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