CN109954323A - A kind of high temperature denitration dust collecting integral equipment - Google Patents

A kind of high temperature denitration dust collecting integral equipment Download PDF

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Publication number
CN109954323A
CN109954323A CN201711422428.5A CN201711422428A CN109954323A CN 109954323 A CN109954323 A CN 109954323A CN 201711422428 A CN201711422428 A CN 201711422428A CN 109954323 A CN109954323 A CN 109954323A
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CN
China
Prior art keywords
dust collecting
ontology
temperature denitration
denitration dust
flue
Prior art date
Application number
CN201711422428.5A
Other languages
Chinese (zh)
Inventor
聂华
吴其荣
喻江涛
刘宇
吉庆
范振兴
黎方潜
周川
王进
周川雄
Original Assignee
国家电投集团远达环保工程有限公司重庆科技分公司
Priority date (The priority date 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 date listed.)
Filing date
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Application filed by 国家电投集团远达环保工程有限公司重庆科技分公司 filed Critical 国家电投集团远达环保工程有限公司重庆科技分公司
Priority to CN201711422428.5A priority Critical patent/CN109954323A/en
Publication of CN109954323A publication Critical patent/CN109954323A/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D45/00Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/04Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
    • B01D45/08Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D45/00Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/18Cleaning-out devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/46Removing components of defined structure
    • B01D53/54Nitrogen compounds
    • B01D53/56Nitrogen oxides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86Catalytic processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86Catalytic processes
    • B01D53/8621Removing nitrogen compounds
    • B01D53/8625Nitrogen oxides
    • B01D53/8631Processes characterised by a specific device
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86Catalytic processes
    • B01D53/90Injecting reactants

Abstract

The present invention provides a kind of high temperature denitration dust collecting integral equipment, comprising: ontology, the ontology are V-type plate structure, and the ontology is located at the denitrating flue gas dedusting in flue or reactor to flowing through;Ash bucket, the ash bucket are located at outside the flue or reactor and are located at the lower section of the ontology to collect the dust of the ontology removing.High temperature denitration dust collecting integral equipment according to an embodiment of the present invention, by the way that the plate-like body of V-type is located at the dust removed in flue or reactor in flue or reactor, and cooperation-removal nitrogen oxides, the ash bucket for collecting dust is equipped in the lower section of ontology, the high temperature denitration dust collecting integral equipment crushing is small, flow of flue gas is influenced small, the nitrogen oxides in flying dust and flue gas can be effectively removed at high temperature, the overall denitration efficiency of SCR denitration system is improved to the abrasion of catalyst and the blocking of follow-up equipment so as to which flying dust in SCR system is effectively reduced.

Description

A kind of high temperature denitration dust collecting integral equipment

Technical field

The present invention relates to filed of flue gas purification, equip more particularly, to a kind of high temperature denitration dust collecting integral.

Background technique

As country is for the proposition of coal-fired minimum discharge policy, the desulfurization of the prior art and dedusting technology have been difficult to meet Strict emission index under minimum discharge requirement.

In the SCR SCR technology flue gas denitrification system of the prior art, it is based primarily upon inertia and gravity sedimentation High-temperature dust removal, but such high-temperature dust removing device are carried out, without denitration simultaneously, increases flue resistance, influences flow of flue gas Stability increases the cost of denitrating system operation, during actual use due to excessively high flue gas flow rate, dust removing effects are limited. Therefore, it is badly in need of developing that a kind of structure is simple, crushing is small, high dust collection efficiency at present, is capable of the high-temperature dust removal denitration one of denitration simultaneously Body makeup is standby.

Summary of the invention

In view of this, the present invention provides a kind of high temperature denitration dust collecting integral equipment.

In order to solve the above technical problems, the invention adopts the following technical scheme:

High temperature denitration dust collecting integral according to an embodiment of the present invention is equipped

Ontology, the ontology are the plate structure of V-type, and the ontology is located in flue or reactor to the flue gas flowed through Denitration dust collecting;

Ash bucket, the ash bucket are located at outside the flue or reactor and are located at the lower section of the ontology to collect the ontology The dust of removing.

Further, the ontology is made of side by side multiple body units, and the body unit includes:

Bending part, the bending part include two connected sealed rectangular plates, and the cross section of the bending part substantially forms V Font;

Composite members, the composite members are generally formed into the rectangular slab of porous structure, and the composite members are located at the bending part On the extending direction at both ends, the composite members are used to carry out denitration dust collecting to the flue gas.

Further, the bending part is glass-reinforced plastic material part, carbon steel material part or stainless steel materials and parts.

Further, the composite members are porous structure, and the pressure loss coefficient of the bending part is greater than the composite members Pressure loss coefficient.

Further, the composite members include:

First synusia, first synusia are porous channel structure for carrying out the catalyst of denitration reaction;

Second synusia, second synusia are the ceramic material part of porous structure, and second synusia is sticked described the On one synusia.

Further, first synusia is by Vi2O5-TiO2/WO3Catalyst material is formed.

Further, second synusia by one of corundum, mullite, cordierite, alumina silicate fibre, silicon carbide or It is a variety of to be made by mixing.

Further, high temperature denitration dust collecting integral equipment further include: anti-purge system, the anti-purge system Be located in the flue or reactor towards first synusia side.

Further, the angle between two rectangular slabs of each bending part is 15 ° more than and less than 180 °.

Further, the ontology is formed as one or more layers on the flow of flue gas direction of the flue.

Further, the number of every layer of ontology is set according to flue or reactor size, generally comprise four or The above interconnection and the simultaneously body unit of column distribution.

Further, the ash bucket is formed as taper.

The advantageous effects of the above technical solutions of the present invention are as follows:

High temperature denitration dust collecting integral according to an embodiment of the present invention equipment, by by V-type plate-like body be located at flue or To remove the dust in flue or reactor in person's reactor, and the ash bucket for collecting dust is equipped in the lower section of ontology, by right The optimization and improvement of existing apparatus reduce operating cost, and the out of stock dust removal integrated equipment crushing of the high temperature is small, to flow of flue gas shadow Sound is small, can effectively remove the nitrogen oxides in flying dust and flue gas at high temperature, so as to reduce in SCR system flying dust to urging The abrasion and blocking of agent and follow-up equipment improve the overall denitration dust collecting efficiency of SCR denitration system.

Detailed description of the invention

Fig. 1 is the structural schematic diagram equipped according to high temperature denitration dust collecting integral of the embodiment of the present invention;

Fig. 2 is the body construction schematic diagram equipped according to high temperature denitration dust collecting integral of the embodiment of the present invention.

Appended drawing reference:

High temperature denitration dust collecting integral equipment 100;

Ontology 10;Body unit 11;Bending part 12;Composite members 13;First synusia 14;Second synusia 15;

Ash bucket 20.

Specific embodiment

In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention Attached drawing, the technical solution of the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is this hair Bright a part of the embodiment, instead of all the embodiments.Based on described the embodiment of the present invention, ordinary skill Personnel's every other embodiment obtained, shall fall within the protection scope of the present invention.

High temperature denitration dust collecting integral equipment 100 according to an embodiment of the present invention is specifically described with reference to the accompanying drawing.

As shown in Figure 1, high temperature denitration dust collecting integral equipment 100 according to an embodiment of the present invention includes ontology 10 and ash bucket 20。

Specifically, ontology 10 is the plate structure of V-type, ontology 10 is located in flue or reactor to the flue gas flowed through Denitration dust collecting, ash bucket 20 are located at outside flue or reactor and are located at the lower section of ontology 10 to collect the dust of the removing of ontology 10.

In other words, high temperature denitration dust collecting integral equipment 100 is mainly made of ontology 10 and ash bucket 20, wherein ontology 10 For the plate of V-type, ontology 10 is located in the channel that flue gas flows through, that is to say, that ontology 10 can be arranged in flue or reactor It is interior, flue gas cross-sectional flow < 15m/s in channel, the lower section of the ontology 10 and outside for being located at flue or reactor is equipped with ash bucket 20, ash bucket 20 for collecting the dust that ontology 10 removes.

High temperature denitration dust collecting integral according to an embodiment of the present invention equipment 100 as a result, by by the plate-like body of V-type 10 are located in flue or reactor to remove the dust in flue or reactor, and are equipped in the lower section of ontology 10 and collect dust Ash bucket 20, pass through the optimization and improvement to existing apparatus, reduce operating cost, the out of stock dust removal integrated equipment 100 of the high temperature Crushing is small, small on flow of flue gas influence, can effectively remove flying dust at high temperature, improve the working efficiency of SCR system.

According to one embodiment of present invention, as shown in Fig. 2, ontology 10 is made of side by side multiple body units 11, ontology Unit 11 include bending part 12 and composite members 13, bending part 12 include two connected sealed rectangular plates, bending part 12 it is transversal Face substantially forms V-shaped, and structure is simple, and composite members 13 are generally formed into rectangular plate with voids, and composite members 13 are located at 12 liang of bending part On the extending direction at end, composite members 13 are used to carry out flue gas denitration dust collecting, the number and flue of set body unit 11 or anti- Answer the width of device related.

According to still another embodiment of the invention, bending part 12 is glass-reinforced plastic material part, carbon steel material part or stainless steel Materials and parts, bending part can be flat layer made of these materials.

Preferably, composite members 13 are porous structure, and the pressure loss coefficient of bending part 12 is greater than the pressure loss coefficient of composite members 13.

Some specific embodiments according to the present invention, as shown in Fig. 2, composite members 13 include the first synusia 14 and the second synusia 15, the first synusia 14 is porous channel structure for carrying out the catalyst of denitration reaction, and the second synusia 15 is porous structure Ceramic material part, the second synusia 15 are sticked on the first synusia 14.

Optionally, the second synusia 15 is by one of corundum, mullite, cordierite, alumina silicate fibre, silicon carbide or a variety of It is made by mixing.

According to one embodiment of present invention, the first synusia 14 is by Vi2O5-TiO2/WO3Material is formed, to nitrogen oxygen in flue gas Compound carries out denitration reaction and realizes denitration function, and the porous ceramic structure of the second synusia 15 is used to remove flying dust in flue gas, thus The purpose to high-temperature flue gas while denitration dust collecting is realized, the blocking to catalyst in SCR system and follow-up equipment and mill are reduced Damage, while improving the denitration efficiency of SCR system entirety.

Further, high temperature denitration dust collecting integral equipment 100 further includes anti-purge system, and anti-purge system is located at flue Or in reactor and towards 14 side of the first synusia, anti-purge system can be steam or sound wave purge system, anti-purge system According in flue or reactor content of ashes and its structure be determined.

In one embodiment of the invention, the angle between two rectangular slabs of each bending part 12 is greater than 15 ° and small In 180 °.

Optionally, according to process requirements, one or more layers ontology 10 can be arranged on the flow of flue gas direction of flue.

According to one embodiment of present invention, four interconnections and the simultaneously sheet of column distribution are generally comprised in every layer of ontology 10 Body unit 11, specific number are determined according to flue or reactor width.

According to still another embodiment of the invention, ash bucket 20 is formed as taper.

To sum up, high temperature denitration dust collecting integral according to an embodiment of the present invention equipment 100, by by the plate of V-type Ontology 10 is located in flue or reactor to remove the dust in flue or reactor, and is equipped with and is collected in the lower section of ontology 10 The ash bucket 20 of dust reduces operating cost, the out of stock dust removal integrated equipment of the high temperature by the optimization and improvement to existing apparatus 100 crushings are small, small on flow of flue gas influence, can effectively remove the nitrogen oxides in flying dust and flue gas at high temperature, so as to To reduce abrasion and blocking of the flying dust to catalyst and follow-up equipment in SCR system, the overall denitration effect of SCR denitration system is improved Rate.

The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications It should be regarded as protection scope of the present invention.

Claims (12)

1. a kind of high temperature denitration dust collecting integral equipment characterized by comprising
Ontology, the ontology are the plate structure of V-type, and the ontology is located in flue or reactor to the denitrating flue gas flowed through Dedusting;
Ash bucket, the ash bucket are located at outside the flue or reactor and are located at the lower section of the ontology to collect the ontology removing Dust.
2. high temperature denitration dust collecting integral equipment according to claim 1, which is characterized in that the ontology is by multiple ontologies Unit forms side by side, and the body unit includes:
Bending part, the bending part include two connected sealed rectangular plates, and the cross section of the bending part substantially forms V word Shape;
Composite members, the composite members are generally formed into rectangular slab, and the composite members are located at the extending direction at the bending part both ends On, the composite members are used to carry out denitration dust collecting to the flue gas.
3. high temperature denitration dust collecting integral equipment according to claim 2, which is characterized in that the bending part is glass reinforced plastic Material pieces, carbon steel material part or stainless steel materials and parts.
4. high temperature denitration dust collecting integral equipment according to claim 2, which is characterized in that the composite members are porous knot Structure, and the pressure loss coefficient of the bending part is greater than the pressure loss coefficient of the composite members.
5. high temperature denitration dust collecting integral according to claim 2 equipment, which is characterized in that the composite members include:
First synusia, first synusia are porous channel structure for carrying out the catalyst of denitration reaction;
Second synusia, second synusia are the ceramic material part of porous structure, and second synusia is sticked in the first layer On piece.
6. high temperature denitration dust collecting integral according to claim 5 equipment, which is characterized in that first synusia by Vi2O5-TiO2/WO3Catalyst material is formed.
7. high temperature denitration dust collecting integral equipment according to claim 5, which is characterized in that second synusia is by rigid One of jade, mullite, cordierite, alumina silicate fibre, silicon carbide a variety of are made by mixing.
8. high temperature denitration dust collecting integral equipment according to claim 5, which is characterized in that further include:
Anti- purge system, the anti-purge system be located in the flue or reactor towards first synusia side.
9. high temperature denitration dust collecting integral equipment according to claim 2, which is characterized in that the two of each bending part Angle between a rectangular slab is 15 ° more than and less than 180 °.
10. high temperature denitration dust collecting integral equipment according to claim 2, which is characterized in that the ontology is in the cigarette Be formed as one or more layers on the flow of flue gas direction in road.
11. high temperature denitration dust collecting integral equipment according to claim 8, which is characterized in that the number of every layer of ontology Mesh is set according to flue or reactor size, generally comprises four or more interconnections and simultaneously the ontology list of column distribution Member.
12. high temperature denitration dust collecting integral equipment according to claim 1, which is characterized in that the ash bucket is formed as boring Shape.
CN201711422428.5A 2017-12-25 2017-12-25 A kind of high temperature denitration dust collecting integral equipment CN109954323A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711422428.5A CN109954323A (en) 2017-12-25 2017-12-25 A kind of high temperature denitration dust collecting integral equipment

Applications Claiming Priority (2)

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CN201711422428.5A CN109954323A (en) 2017-12-25 2017-12-25 A kind of high temperature denitration dust collecting integral equipment
PCT/CN2018/120890 WO2019128727A1 (en) 2017-12-25 2018-12-13 High-temperature integrated denitration and dust removing apparatus

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WO (1) WO2019128727A1 (en)

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Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4028077A (en) * 1976-01-15 1977-06-07 Research-Cottrel, Inc. Mist eliminator
CN1316915A (en) * 1998-09-09 2001-10-10 巴布考克日立株式会社 Exhaust emission control catalyst structure and device
CN101732931A (en) * 2008-11-24 2010-06-16 河南中新环保物流设备有限公司 Dust collector
CN201949738U (en) * 2010-12-03 2011-08-31 东辰控股集团有限公司 Device for filtering and collecting dust vapor liquid
CN203208806U (en) * 2013-05-06 2013-09-25 上海洁昊环保设备有限公司 Demister set
CN204193676U (en) * 2014-11-10 2015-03-11 云南红河酷爱哈尼梯田产业发展有限公司 A kind of recovery type heat rice bran expansion chamber
CN104785020A (en) * 2015-03-31 2015-07-22 山东鑫源环保工程技术有限公司 SCR flue gas denitration dust pre-removing device
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