CN208260414U - A kind of dedusting, denitration collaborative device - Google Patents
A kind of dedusting, denitration collaborative device Download PDFInfo
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- CN208260414U CN208260414U CN201821276714.5U CN201821276714U CN208260414U CN 208260414 U CN208260414 U CN 208260414U CN 201821276714 U CN201821276714 U CN 201821276714U CN 208260414 U CN208260414 U CN 208260414U
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- 239000000428 dust Substances 0.000 claims abstract description 85
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000003546 flue gas Substances 0.000 claims abstract description 46
- 239000000779 smoke Substances 0.000 claims abstract description 7
- 239000000919 ceramic Substances 0.000 claims description 33
- 239000000835 fiber Substances 0.000 claims description 27
- 239000003054 catalyst Substances 0.000 claims description 24
- 239000000178 monomer Substances 0.000 claims description 19
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 14
- 238000004140 cleaning Methods 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 6
- 229910021529 ammonia Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 10
- 238000005516 engineering process Methods 0.000 abstract description 9
- 239000007789 gas Substances 0.000 abstract description 7
- 230000010354 integration Effects 0.000 abstract description 6
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 30
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 16
- 235000017491 Bambusa tulda Nutrition 0.000 description 16
- 241001330002 Bambuseae Species 0.000 description 16
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 16
- 239000011425 bamboo Substances 0.000 description 16
- 239000004568 cement Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000001914 filtration Methods 0.000 description 6
- 230000002195 synergetic effect Effects 0.000 description 6
- 239000011521 glass Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000002657 fibrous material Substances 0.000 description 4
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000006722 reduction reaction Methods 0.000 description 3
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 2
- 238000010531 catalytic reduction reaction Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000010574 gas phase reaction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000012857 repacking Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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- Filtering Of Dispersed Particles In Gases (AREA)
- Treating Waste Gases (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The utility model is to be related to smoke gas treatment technical field about a kind of dedusting, denitration collaborative device.The technical solution mainly used are as follows: the dedusting, denitration collaborative device include cabinet and at least one filter cylinder.Wherein, air inlet and exhaust outlet are provided on cabinet.Filter cylinder is placed in cabinet, and the barrel of the filter cylinder can remove dust in flue gas and make denitrating flue gas.Wherein, it is passed through the intracorporal flue gas of case by air inlet to be introduced into filter cylinder, then, flue gas passes through dedusting, denitration process when passing through barrel out of filter cylinder, after passing through barrel, is discharged from the cabinet by exhaust outlet.The utility model is mainly used for realizing the dirt nitre integration removing in flue gas, thus the space occupied needed for reducing dedusting, denitration device, so that SCR technology energy large-scale application.
Description
Technical Field
The utility model relates to a technical field is administered to the flue gas, especially relates to a dust removal, denitration are device in coordination.
Background
With the development of economy, the atmospheric pollution is more serious and the treatment intensity is more and more strong. Nitrogen oxides (N0x) are one of the main pollutants of the atmospheric environment, mainly originating from the fumes generated by the combustion of the fuel. The nitrogen oxides being present in the form of N2O、NO、N2O3、NO2、N2O4、N2O5And the nitrogen oxide is mainly N0 and accounts for more than 90 percent of the total nitrogen oxide.
Currently, the commonly used denitration technology is mainly Selective Catalytic Reduction (SCR) and selective non-catalytic reduction (SNCR). Wherein, SNCR technology does not need to use denitration catalyst, but directly sprays reducing agent in the reaction zone, and the reducing agent and NOx in the flue gas occurHomogeneous gas phase reaction to produce N2Thereby realizing the denitration of the flue gas; however, the reaction zone of the SNCR technique is close to the combustion zone and the operating temperature range is narrow, so that the denitration efficiency is affected to some extent by problems such as insufficient mixing or fluctuation of the operating temperature. The SCR technology is the most widely applied flue gas denitration method at present, and is characterized in that a reactor is arranged at the rear flue to place a catalyst fixed bed layer, and NH is sprayed in front of the bed layer3By catalytic processes for the implementation of NH3Reducing nitrogen oxides; the SCR technology has high denitration efficiency, large treated flue gas amount and small secondary pollution. In recent years, while the national standards for further strengthening the emission of atmospheric pollution, the industry using a large amount of SNCR systems needs to be changed to SCR systems.
However, the high-temperature flue gas often contains a large amount of dust, and the dust can cause the denitration catalyst to be "poisoned" and can not work normally, so in the prior art, a dust remover (static electricity, cloth bag) is generally arranged in front of the SCR reactor to remove the dust in the flue gas before the denitration is performed on the flue gas.
The inventors of the present invention have found that the technique of providing a dust remover in front of the SCR reactor has at least the following problems: due to the compact layout of the equipment, no enough space is provided for installing the dust remover and the SCR reactor, and the SCR technology cannot be applied to the industries of cement, glass and the like on a large scale due to the high concentration and strong abrasiveness of dust in the cement industry, the viscosity of dust in the glass industry and the like.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a dust removal, denitration are device in coordination, the integration desorption of dirt nitre in the main aim at realization flue gas to reduce the required space that occupies of dust removal, denitration equipment, so that the SCR technique can be used on a large scale.
In order to achieve the above object, the utility model mainly provides the following technical scheme:
on the one hand, the embodiment of the utility model provides a dust removal, denitration are device in coordination, it includes:
the air inlet and the air outlet are arranged on the box body;
the filter cartridge is arranged in the box body, and the wall of the filter cartridge can remove dust in the flue gas and denitrate the flue gas;
the smoke introduced into the box body through the air inlet firstly enters the filter cylinder, then is subjected to dust removal and denitration treatment when passing through the cylinder wall from the filter cylinder, and is discharged from the box body through the exhaust port after passing through the cylinder wall.
The purpose of the utility model and the technical problem thereof can be further realized by adopting the following technical measures.
Preferably, the filter cartridge is a filter structure attached with a denitration catalyst; wherein the filter structure is any one of a ceramic fiber structure, a chemical fiber needled felt structure and a high-temperature sintered ceramic filter structure;
the smoke introduced into the box body from the air inlet is the smoke sprayed with ammonia.
Preferably, the wall of the filter cylinder sequentially comprises a dust removing layer and a denitration layer from inside to outside; wherein,
the flue gas which is introduced into the box body from the air inlet and is sprayed with ammonia firstly enters the filter cylinder, and is subjected to dust removal and denitration treatment in sequence through the dust removal layer and the denitration layer on the cylinder wall of the filter cylinder, and then is discharged from the box body through the air outlet.
Preferably, the dedusting layer of the filter cylinder is a ceramic fiber layer, and the denitration layer of the filter cylinder is a ceramic fiber layer attached with a denitration catalyst; and/or
The thickness of the dedusting layer is 1/5-2/5 of the thickness of the wall of the filter cylinder; the thickness of the denitration layer is 3/5-5/5 of the thickness of the wall of the filter cylinder.
Preferably, the dust removal and denitration cooperative device further comprises a pattern plate; wherein,
the pattern plate is fixed in the box body, and pattern plate holes are formed in the pattern plate;
the filter cartridge is connected with the pattern plate hole; wherein the flue gas enters the filter cartridge through the faceplate aperture.
Preferably, the case includes:
the air inlet opening is arranged on the first box body;
the second box body is communicated with the first box body and is positioned below the first box body; the air outlet is arranged on the second box body;
wherein the filter cartridge and the flower plate are positioned in the second box body.
Preferably, the second box body is formed by longitudinally connecting a plurality of box body single bodies in a detachable mode; wherein,
each filter cylinder comprises a plurality of filter cylinder monomers which are longitudinally and sequentially arranged, and the upper end and the lower end of each filter cylinder monomer are respectively provided with an opening, so that any two adjacent filter cylinder monomers in the filter cylinder are communicated;
the number of the filter cylinder monomers in each filter cylinder is consistent with that of the box body monomers and corresponds to that of the box body monomers one by one; and the filter cartridge single body is arranged in the box body single body corresponding to the filter cartridge single body;
the pattern plate comprises an upper pattern plate and a lower pattern plate; each single box body is provided with an upper pattern plate and a lower pattern plate, the upper end of a filter cylinder in each single box body is hermetically connected with a pattern plate hole of the upper pattern plate, and the lower end of the filter cylinder in each single box body is hermetically connected with a pattern plate hole of the lower pattern plate.
Preferably, each box body monomer is provided with an air outlet.
Preferably, the dust removal and denitration cooperative apparatus further comprises:
the dust cleaning device is provided with a nozzle, and the nozzle is communicated with the filter cylinder; and the ash bucket is arranged below the box body and is communicated with the box body.
Preferably, when the box body comprises a second box body and the second box body comprises a plurality of box body single bodies, the number of the ash removal devices is consistent with that of the pattern plates and corresponds to the pattern plates one by one; the number of the nozzles on the ash removal device is consistent with that of the pattern plate holes on the pattern plate corresponding to the nozzles, and the nozzles are connected in a one-to-one correspondence manner.
Compared with the prior art, the utility model discloses a dust removal, denitration device in coordination has following beneficial effect at least:
1. the embodiment of the utility model provides a remove dust, denitrification facility only needs to set up in the box and can remove dust, can also denitrate strain a section of thick bamboo, can realize adopting the purpose of same device integration dust and nitre of removing, set up the dust remover promptly for prior art, set up denitration reactor again, the occupation of land space has been saved greatly, the maintenance work volume that follow-up equipment also was given in the simplification of technology and leading dust removal reduces, the follow-up life like preheating power generation or heat exchanger of extension, increase heat transfer volume, thereby make SCR technical capability be applied to cement on a large scale, trade fields such as glass.
2. The embodiment of the utility model provides a dust removal, denitration synergistic device selects for use ceramic fiber material or other filter media such as chemical fibre, sintered ceramics through the section of thick bamboo wall that makes a section of thick bamboo, when realizing removing dust, and adhere to denitration catalyst on the ceramic fiber material in the section of thick bamboo of whole ceramic fiber material or section of thick bamboo wall to realize promoting the reduction of NH3 in the flue gas to nitrogen oxide, thereby realize the denitration to the flue gas; the device further realizes the integration of dust removal and denitration, and further reduces the occupied space of the device. In addition, ceramic fiber or sintered ceramic filter medium or chemical fiber needled felt is selected as the material of the filter cartridge in the embodiment, wherein the filter cartridge made of the ceramic fiber filter cartridge and the sintered ceramic filter medium has the advantages of high temperature resistance, corrosion resistance, high mechanical strength, stable structure, no deformation, easy cleaning, unchanged filtering effect after repeated cleaning and the like.
3. The embodiment of the utility model provides a dust removal, denitration cooperative device sets up into the structure that is formed by connecting a plurality of second box monomers in a detachable mode through making the second box to, and all settle in every box monomer has the section of thick bamboo monomer of straining that constitutes a section of thick bamboo vertically; the number of the single box bodies and the length of the filter cartridge can be selected according to actual needs (such as the size of the air volume under the field working condition and the difference of the spatial layout), so that the problem of project reconstruction caused by insufficient field space is further reduced; and the large-scale denitration device is composed of a plurality of parts with the same specification, so that the production is convenient, and the production cost is reduced.
4. The ash removal device can effectively reduce the resistance rise of the device caused by dust accumulation, and the cost is saved.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of a dust removal and denitration cooperative apparatus provided by an embodiment of the present invention.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose of the present invention, the following detailed description is given with reference to the accompanying drawings and preferred embodiments, in order to explain the detailed embodiments, structures, features and effects of the present invention. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Example 1
This embodiment provides a dust removal, denitration cooperative device, as shown in fig. 1, it includes: a tank 1 and at least one filter cartridge 2. The housing 1 is provided with an air inlet 111 and an air outlet 121. The filter cylinder 2 is arranged in the box body 1, and the wall of the filter cylinder 2 can remove dust in flue gas and denitrate the flue gas. Wherein, the flue gas that lets in the box 1 by air inlet 111 gets into earlier and strains in a section of thick bamboo 2, then, the flue gas is through removing dust, denitration treatment when crossing the section of thick bamboo wall of straining a section of thick bamboo in straining a section of thick bamboo 2, after crossing the section of thick bamboo wall, the flue gas after removing dust, denitration treatment is discharged from box 1 by gas vent 121.
Herein, the flue gas in the embodiment and the following embodiments comprises a flue gas body and NH sprayed into the flue gas body before entering the box body3。
Preferably, the filter cartridge 2 in the present embodiment is plural, and the upper ends and the lower ends of the filter cartridges 2 are flush, and the filter cartridges 2 are uniformly distributed in the case 1, especially in the second case 12.
The dust removal, denitrification facility that this embodiment provided only need set up in box 1 can remove dust, can also the denitration strain a section of thick bamboo, can realize adopting the purpose of the integrative dust and niter that removes of same device, set up the dust remover promptly for prior art, set up the denitration reactor again, saved occupation of land space greatly to make the SCR technique can be applied to trade fields such as cement, glass on a large scale.
Example 2
Preferably, the present embodiment provides a synergistic device for dust removal and denitration, as shown in fig. 1, in order to integrally remove dust and denitration on the wall of the filter cartridge 2, the present embodiment performs the following design on the filter cartridge 2 (here, two main designs are adopted):
the first scheme is as follows: the wall of the filter cartridge 2 in this embodiment is a filter structure to which a denitration catalyst is attached; wherein, the filter structure is a ceramic fiber structure or a high-temperature sintered ceramic filter structure or a chemical fiber needled felt structure. The filter cartridge can remove dust in the flue gas; and the denitration catalyst attached to the catalyst promotes the reduction of NH3 on nitrogen oxides, so that denitration is realized. In this solution, since the denitration catalyst is "poisoned" or covered by the dust in the flue gas body, the denitration catalyst may be poisoned on the portion of the wall of the filter cartridge 2 near the inside of the filter cartridge, which is mainly used for dust removal and can be regarded as a dust removal zone; while the portion of the wall of the filter cartridge 2 remote from the inside of the filter cartridge is mainly used for denitration (since the aforementioned portion has removed the dust, the denitration catalyst on the portion of the wall of the filter cartridge 2 remote from the inside of the filter cartridge is not poisoned). Preferably, the material such as ceramic fiber with the attached denitration catalyst in this embodiment is obtained by mixing ceramic fiber and the denitration catalyst, and finally, the mixed material is stirred, aged, extruded, molded and dried under certain conditions.
Of course, the ceramic material to which the denitration catalyst is attached is not limited to the above-described embodiment, but the above-described embodiment is a preferable embodiment, and the denitration catalyst may be directly coated on the ceramic fiber material.
The second scheme is as follows: the wall of the filter cartridge 2 sequentially comprises a dust removing layer and a denitration layer from inside to outside; wherein the flue gas that lets in the box 1 by air inlet 111 gets into earlier and strains in a section of thick bamboo 2, and dust removal, denitration treatment are carried out in proper order to dust removal layer, the denitration layer on straining a section of thick bamboo wall 2, are followed box 1 by gas vent 121 and are discharged. Preferably, the dedusting layer of the filter cylinder 2 in this embodiment is a ceramic fiber layer, and the denitration layer of the filter cylinder 2 is a ceramic fiber layer attached with a denitration catalyst (here, the ceramic fiber layer attached with the denitration catalyst may be directly made of a material such as ceramic fiber attached with the denitration catalyst, or may be directly coated with the denitration catalyst on the material such as ceramic fiber).
Preferably, the thickness of the dust removing layer in the scheme is 1/5-2/5, preferably 1/4 of the thickness of the wall of the filter cylinder. In the scheme, the thickness of the denitration layer is 3/5-5/5 of the thickness of the wall of the filter cylinder (when the thickness is 5/5, part of the denitration layer also has a dust removal effect, and the part of the denitration layer is the denitration layer and the dust removal layer), preferably 3/5-4/5, and more preferably 3/4.
In summary, in the synergistic device for dedusting and denitration provided by the embodiment, the wall of the filter cartridge is made of ceramic fibers and other materials, so that when dedusting is realized, a denitration catalyst is attached to all ceramic fibers or the ceramic fibers in the filter cartridge based on the principle of the wall of the filter cartridge, so that reduction of NH3 in flue gas to nitrogen oxides is promoted, and denitration of the flue gas is realized; the device further realizes the integration of dust removal and denitration, and further reduces the occupied space of the device. In addition, ceramic fiber or sintered ceramic filter medium or chemical fiber needled felt is selected as the material of the filter cartridge in the embodiment, wherein the filter cartridge made of ceramic fiber or sintered ceramic filter medium has the advantages of high temperature resistance, corrosion resistance, high mechanical strength, stable structure, no deformation, easy cleaning, unchanged filtering effect after repeated cleaning and the like.
Example 3
Preferably, the present embodiment provides a synergistic device for dust removal and denitration, which is further designed as follows, as shown in fig. 1, compared with the above embodiments:
the dust removal and denitration cooperative device further comprises a pattern plate; wherein, the pattern plate is fixed in the box body 1, and the pattern plate is provided with a pattern plate hole. The filter cartridge 2 is connected with the pattern plate hole; wherein the flue gas enters the filter cartridge 2 through the pattern holes. The pattern plate is arranged to fix the filter cartridge 2 so that the filter cartridge 2 is suspended in the box body 1, and the pattern plate holes 2 also play a role in guiding flow to uniformly distribute and guide the flue gas to each filter cartridge 2.
Further, the case 1 of the present embodiment includes: a first casing 11 and a second casing 12. Wherein the air inlet 111 is provided on the first case 11. The second casing 12 is in communication with the first casing 11 and is located below the first casing 11. The exhaust port 121 is provided on the second case. Wherein, the filter cartridge 2 and the flower plate are both positioned in the second box body 12. Preferably, the exhaust port 121 corresponds to a side of the filter cartridge 2 at a suitable position, such that the arrangement promotes the passage of the flue gas entering the filter cartridge 2 through the wall of the filter cartridge 2.
Example 4
Preferably, the present embodiment provides a synergistic device for dust removal and denitration, as shown in fig. 1, and the second box 12 is further designed based on embodiment 3 as follows:
the second casing 12 in this embodiment is formed by detachably connecting a plurality of casing single bodies 120 in the longitudinal direction. And, each filter cartridge 2 comprises a plurality of filter cartridge units 21 arranged in series longitudinally; and the upper end and the lower end of each filter cylinder unit 21 are both opened, so that any two adjacent filter cylinder units 21 in the filter cylinder 2 are communicated. The number of the filter cartridge units 21 in each filter cartridge 2 is consistent with or inconsistent with the number of the box body units 120, and corresponds to or does not need to correspond to one another; and the filter cartridge unit 21 is seated in the case unit 120 corresponding thereto. Each box body unit 120 is provided with an upper pattern plate and a lower pattern plate, and the upper end of the filter cartridge unit 21 in each box body unit 120 is hermetically connected with the pattern plate hole of the upper pattern plate of the pattern plate, and the lower end is hermetically connected with the lower pattern plate hole of the lower pattern plate.
The dust removal and denitration cooperative device provided by the embodiment has the advantages that the second box body is arranged into a structure formed by detachably connecting a plurality of first box body monomers, and each box body monomer is internally provided with the filter cylinder monomer which longitudinally forms the filter cylinder; the number of the single box bodies and the length of the filter cartridge can be selected according to actual requirements (such as the difference of the air volume and the spatial layout under the field working conditions); further reducing the difficulty of project reconstruction caused by insufficient field space.
Preferably, each single case body 120 is provided with an exhaust port 121; preferably, the exhaust port is opened at the middle position of each box body unit 120, and by this arrangement, the exhaust pipe at the exhaust port 121 further promotes the smoke gas entering the filter cartridge unit 21 to pass through the wall of the filter cartridge.
Example 5
Preferably, the present embodiment provides a synergistic device for dust removal and denitration, as shown in fig. 1, compared with the above embodiment, the present embodiment is further designed as follows:
the dust removal and denitration cooperative device in the embodiment further comprises an ash removal device 3 and an ash bucket 13. Wherein, the ash cleaning device 3 is provided with a nozzle which is communicated with the filter cylinder 2; when the dust removal and denitration cooperative device comprises a pattern plate, the number of the nozzles is consistent or inconsistent with the number of the holes of the pattern plate, and the nozzles are in one-to-one correspondence or do not need to be in one-to-one correspondence communication; namely, the nozzle is communicated with the pattern plate hole, so that the nozzle is communicated with the filter cylinder; specifically, the pattern plate holes are communicated with the filter cartridge in the up-down direction, and the nozzles are communicated with the pattern plate holes in the transverse direction (i.e., the left-right direction). Specifically, when the box 1 includes the second box 12 and the second box 12 includes a plurality of box units 120, the number of the ash removal devices 3 is the same as the number of the pattern plates and corresponds to one another; the number of the nozzles on the ash removal device 3 is consistent with that of the pattern plate holes on the pattern plate corresponding to the nozzles, and the nozzles are communicated with the pattern plate holes in a one-to-one correspondence manner.
The ash hopper 13 is arranged below the box body 1 and is communicated with the box body 1; when the case 1 includes the second case 12 and the second case 12 includes the single case, the dust hopper 13 can be detachably connected to any single case, so that the dust hopper 13 can be disposed at the lowermost portion of the second case while the length of the second case can be freely selected.
Preferably, the ash removal device in the embodiment is a pulse ash removal device or a sound wave horn ash removal device, and the ash removal pressure is not less than 0.1MPa and is adjusted according to the field operation condition. The ash cleaning device adopts an internal filtering back-blowing type filtering mode or an external filtering back-blowing type filtering mode or an acoustic horn utilizes acoustic waves to clean ash. Further preferably, the ash removal device is in communication with a source of compressed air or compressed nitrogen. Furthermore, a heater is arranged on a gas path of the ash removal device communicated with the compressed air or compressed nitrogen source, and the ash removal gas is heated to a set temperature by the heater before blowing and ash removal.
The working process of the dust removal and denitration device provided by the embodiment is as follows: after ammonia gas is sprayed into the high-temperature dust-containing flue gas body, the high-temperature dust-containing flue gas body enters the first box body 11 through the air inlet 111, then uniformly enters each filter cylinder 2 through the flow guiding effect of the pattern plate holes, and in the process that the flue gas passes through the cylinder wall of each filter cylinder 2 from the inside of each filter cylinder to the outside of each filter cylinder, the flue gas is subjected to dust removal treatment firstly, then nitrogen oxides are removed under the action of the denitration catalyst, and finally, the clean high-temperature gas is discharged from the air outlet 121 after passing through the outer. When the ash is removed, the exhaust port 121 is closed, the ash removing device is opened, and the ash attached to the filter cartridge 2 is blown down to the ash bucket and finally discharged from the ash bucket.
Taking the cement industry as an example, the current SNCR technology cannot meet the standard requirement of 'ultra-low emission', so that a more efficient SCR technology is required, namely a dust remover and an SCR reactor are respectively additionally arranged to realize dust removal and denitration. Because the production equipment arrangement of cement enterprises is more compact, no redundant space is provided for installing the dust remover and the SCR reactor. And adopt the embodiment of the utility model provides a can with the humidification tower repacking for dust removal, denitration device in coordination, the high temperature flue gas directly gets into the device from the one-level pre-heater, according to the free quantity of box in the second box of the amount of wind selectable of cement enterprise, it finally realizes that dust and nitrogen oxide discharge are up to standard to get into waste heat power generation device after realizing dust removal denitration.
To sum up, the embodiment of the utility model provides a pair of dust removal, denitrification facility only need set up in the box can remove dust, can denitration strain a section of thick bamboo again, can realize adopting the purpose of same device integration dust and nitre of removing, set up the dust remover promptly for prior art, set up the denitration reactor again, saved occupation of land space greatly to make the SCR technique can be applied to trade fields such as cement, glass on a large scale.
In summary, it is readily understood by those skilled in the art that the advantageous modes described above can be freely combined and superimposed without conflict.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change and modification made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides a dust removal, denitration is device in coordination which characterized in that, it includes:
the air inlet and the air outlet are arranged on the box body;
the filter cartridge is arranged in the box body, and the wall of the filter cartridge can remove dust in the flue gas and denitrate the flue gas;
the smoke introduced into the box body through the air inlet firstly enters the filter cylinder, then is subjected to dust removal and denitration treatment when passing through the cylinder wall from the filter cylinder, and is discharged from the box body through the exhaust port after passing through the cylinder wall.
2. The cooperative dust-removal and denitration device according to claim 1, wherein the filter cartridge is a filter structure to which a denitration catalyst is attached; wherein,
the filter structure is any one of a ceramic fiber structure, a chemical fiber needled felt structure and a high-temperature sintered ceramic filter structure;
wherein, the flue gas introduced into the box body from the air inlet is the flue gas sprayed with ammonia gas.
3. The cooperative dedusting and denitrating device as set forth in claim 1, wherein the wall of the filter cartridge comprises a dedusting layer and a denitrating layer in sequence from inside to outside; wherein,
the flue gas which is introduced into the box body from the air inlet and is sprayed with ammonia firstly enters the filter cylinder, and is subjected to dust removal and denitration treatment in sequence through the dust removal layer and the denitration layer on the cylinder wall of the filter cylinder, and then is discharged from the box body through the air outlet.
4. The cooperative dust-removal and denitration device according to claim 3, wherein the dust-removal layer of the filter cartridge is a ceramic fiber layer, and the denitration layer of the filter cartridge is a ceramic fiber layer to which a denitration catalyst is attached; and/or
The thickness of the dedusting layer is 1/5-2/5 of the thickness of the wall of the filter cylinder; the thickness of the denitration layer is 3/5-5/5 of the thickness of the wall of the filter cylinder.
5. The cooperative dust-removal and denitration device according to claim 1, further comprising a pattern plate; wherein,
the pattern plate is fixed in the box body, and pattern plate holes are formed in the pattern plate;
the filter cartridge is connected with the pattern plate hole; and the smoke enters the filter cylinder after being guided through the pattern plate holes.
6. The cooperative dust-removing and denitration device according to claim 5, wherein the case includes:
the air inlet is arranged on the first box body;
the second box body is communicated with the first box body and is positioned below the first box body; the air outlet is arranged on the second box body;
wherein the filter cartridge is located in the second tank.
7. The cooperative dust-removing and denitration device as claimed in claim 6, wherein the second case is formed by longitudinally connecting a plurality of case units in a detachable manner; wherein,
each filter cartridge comprises a plurality of filter cartridge monomers which are sequentially communicated in the longitudinal direction; the upper end and the lower end of each filter cylinder monomer are arranged in an open manner, so that any two adjacent filter cylinder monomers in the filter cylinder are communicated;
the number of the filter cylinder monomers in each filter cylinder is consistent with that of the box body monomers and corresponds to that of the box body monomers one by one; and the filter cartridge single body is arranged in the box body single body corresponding to the filter cartridge single body;
the pattern plate comprises an upper pattern plate and a lower pattern plate; each single box body is provided with an upper pattern plate and a lower pattern plate, the upper end of a filter cylinder in each single box body is hermetically connected with a pattern plate hole of the upper pattern plate, and the lower end of the filter cylinder in each single box body is hermetically connected with a pattern plate hole of the lower pattern plate.
8. The cooperative dust-removing and denitration device as claimed in claim 7, wherein each of the single case bodies is provided with the exhaust port.
9. The cooperative dust-removal and denitration device according to any one of claims 1 to 7, further comprising:
the dust cleaning device is provided with a nozzle, and the nozzle is communicated with the filter cylinder;
and the ash bucket is arranged below the box body and is communicated with the box body.
10. The cooperative dust-removing and denitration apparatus as claimed in claim 9, wherein when the case includes a second case and the second case includes a plurality of case units,
the number of the ash removal devices is consistent with that of the pattern plates and corresponds to that of the pattern plates one by one; the number of the nozzles on the ash removal device is consistent with that of the pattern plate holes on the pattern plate corresponding to the nozzles, and the nozzles are communicated with the pattern plate holes in a one-to-one correspondence manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821276714.5U CN208260414U (en) | 2018-08-09 | 2018-08-09 | A kind of dedusting, denitration collaborative device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821276714.5U CN208260414U (en) | 2018-08-09 | 2018-08-09 | A kind of dedusting, denitration collaborative device |
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| CN208260414U true CN208260414U (en) | 2018-12-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109876656A (en) * | 2019-03-28 | 2019-06-14 | 山东鑫澳节能环保科技有限公司 | Straight barrel type cartridge end sealing device, dedusting denitrification apparatus and its assembly method |
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2018
- 2018-08-09 CN CN201821276714.5U patent/CN208260414U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109876656A (en) * | 2019-03-28 | 2019-06-14 | 山东鑫澳节能环保科技有限公司 | Straight barrel type cartridge end sealing device, dedusting denitrification apparatus and its assembly method |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191225 Address after: Group 13, Yangyu village, Zhangdian Town, Jiangyan District, Taizhou City, Jiangsu Province Patentee after: Jiangsu Haiyang energy conservation and Environmental Protection Technology Co.,Ltd. Address before: Unit 1808, Building 6, Dinghao Square, 44 Industrial South Road, Jinan City, Shandong Province, 250100 Patentee before: SHANDONG XIN'AO ENERGY SAVING ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |
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Granted publication date: 20181221 |