[go: up one dir, main page]

WO2019168059A1 - Dispositif de traitement de gaz d'échappement - Google Patents

Dispositif de traitement de gaz d'échappement Download PDF

Info

Publication number
WO2019168059A1
WO2019168059A1 PCT/JP2019/007658 JP2019007658W WO2019168059A1 WO 2019168059 A1 WO2019168059 A1 WO 2019168059A1 JP 2019007658 W JP2019007658 W JP 2019007658W WO 2019168059 A1 WO2019168059 A1 WO 2019168059A1
Authority
WO
WIPO (PCT)
Prior art keywords
duct
exhaust gas
hopper
horizontal
vertical
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.)
Ceased
Application number
PCT/JP2019/007658
Other languages
English (en)
Japanese (ja)
Inventor
谷口　幸久
勝美 矢野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Power Ltd
Original Assignee
Mitsubishi Hitachi Power Systems Ltd
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
Publication date
Application filed by Mitsubishi Hitachi Power Systems Ltd filed Critical Mitsubishi Hitachi Power Systems Ltd
Priority to CN201980015852.9A priority Critical patent/CN111818986A/zh
Publication of WO2019168059A1 publication Critical patent/WO2019168059A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
    • B01D45/08—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation 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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes

Definitions

  • the present invention relates to an exhaust gas treatment device that reduces nitrogen oxides in exhaust gas discharged from a coal fired boiler using a denitration device.
  • a denitration device that injects a reducing agent (for example, ammonia) into the exhaust gas and reduces NOx to N 2 with a denitration catalyst 2.
  • a reducing agent for example, ammonia
  • An exhaust gas treatment apparatus that is generally employed and guides exhaust gas discharged from a coal fired boiler to a denitration apparatus via a horizontal duct and a vertical duct is known.
  • ash particles dust or ash generated by coal combustion
  • Patent Document 1 includes a horizontal duct connected to an exhaust gas outlet of a coal fired boiler, a vertical duct connected to the horizontal duct, and a hopper provided at a lower portion of a connection portion between the horizontal duct and the vertical duct.
  • An exhaust gas treatment device is described. Ash particles (dust or ash generated by combustion) in the exhaust gas flowing through the horizontal duct are collected by a hopper.
  • a collision plate for collecting large-sized ash particles that are unevenly distributed in the lower part of the horizontal duct and entrained in the exhaust gas is provided at the upper end opening of the hopper, and the ash in the exhaust gas is provided on the collision plate. It is described that particles collide and fall into a hopper.
  • the exhaust gas contains many ash particles with a large particle size (100 ⁇ m or more).
  • the collection rate of ash particles having a large particle diameter by the hopper is improved by providing the collision plate described in Patent Document 1, and the wear of the denitration catalyst of the denitration device is suppressed. be able to.
  • a collision plate must be provided so as to cross the upper end opening of the hopper, which may increase the flow resistance of exhaust gas.
  • reinforcement for suppressing vibration noise may be necessary.
  • an object of the present invention is to provide an exhaust gas treatment apparatus capable of improving the collection rate of ash particles having a large particle size while suppressing an increase in exhaust gas flow resistance.
  • the present invention is an exhaust gas treatment device for reducing nitrogen oxides in exhaust gas discharged from a coal fired boiler by a denitration device, and includes a duct and a hopper.
  • the duct has a horizontal duct extending in a substantially horizontal direction and a vertical duct extending in a substantially vertical direction.
  • the front end of the horizontal duct communicates with the exhaust gas outlet of the coal fired boiler, and the rear end of the horizontal duct communicates with the lower end of the vertical duct.
  • the duct divides the space in the duct that guides the exhaust gas discharged from the coal fired boiler from the horizontal duct to the upper side of the vertical duct to the denitration apparatus.
  • the hopper is provided below the vertical duct, and communicates with the space in the duct through the hopper upper end opening.
  • the exhaust gas treatment apparatus includes a plurality of screen-type collision plates.
  • the plurality of screen-like collision plates are fixed to and raised from the front edge of the hopper upper end opening and fixed to the bottom surface of the duct that divides the space under the duct, and in a state of being separated from each other, Line up along the crossing direction.
  • the vertical direction of the screen-like collision plate with respect to the bottom surface of the duct is preferably substantially vertical, and the bottom surface of the duct
  • the projection amount (projection height) of the screen-like collision plate from the top is preferably 10 to 15% of the width in the height direction of the horizontal duct.
  • the position of the screen-like collision plate is preferably the rear side (the hopper upper end opening side) of the duct bottom surface in the front-rear direction, and more preferably 1 to 1.5 m from the front end edge of the hopper upper end opening. is there.
  • the screen-type collision plate is provided on the bottom surface of the duct, so that the ash particles having a large particle size unevenly distributed in the lower part of the horizontal duct and entrained in the exhaust gas are caused to collide with the screen-type collision plate. It is possible to improve the collection rate of ash particles having a large particle size while suppressing an increase in the flow resistance of exhaust gas.
  • the exhaust gas treatment apparatus includes an inclined collision plate.
  • the inclined collision plate extends continuously upward from the rear end edge of the hopper upper end opening and is fixed to the rear surface of the duct that defines the rear of the duct internal space, and extends inclined downward from the rear surface.
  • the protruding amount of the inclined collision plate from the rear surface of the duct is determined by the depth of the vertical duct (front and 5 to 15% of the distance to the rear surface is preferable.
  • the inclined collision plate is provided on the rear surface of the duct, so that the ash particles having a large particle size unevenly distributed in the lower part of the horizontal duct and accompanying the exhaust gas are caused to collide with the lower surface of the inclined collision plate to It is possible to improve the collection rate of ash particles having a large particle size while suppressing an increase in the flow resistance of exhaust gas.
  • a third aspect of the present invention is the exhaust gas treatment apparatus according to the first or second aspect, and includes a plurality of guide vanes and an inclined collision surface.
  • the plurality of guide vanes are disposed in the duct interior space above the hopper, are fixed to the duct and overlap each other in a state of being separated from each other, and guide the exhaust gas flowing from the horizontal duct to the vertical duct vertically upward.
  • the inclined collision surface is fixedly provided at an end portion on the horizontal duct side of the lowermost guide vane among the plurality of guide vanes, and extends obliquely rearward and downward.
  • the ash particles with a large particle size that are unevenly distributed in the lower part of the horizontal duct and entrained in the exhaust gas collide with the inclined collision surface by a simple configuration in which the inclined collision surface is fixedly provided on the lowermost guide vane. It can be made to collect by a hopper, and the collection rate of a large particle size ash particle further improves.
  • the present invention it is possible to improve the collection rate of ash particles having a large particle size while suppressing an increase in the flow resistance of exhaust gas, and to suppress wear of the denitration catalyst due to the ash particles having a large particle size.
  • FIG. 1 is an overall configuration diagram of an exhaust gas treatment apparatus according to a first embodiment of the present invention. It is a principal part enlarged view of FIG. It is a perspective view of the screen-shaped collision board of FIG. It is an enlarged view of the screen-shaped collision board of FIG.
  • FIG. 3 is an enlarged view of the inclined collision plate in FIG. 2.
  • FIG. 4 is a diagram showing a flow of ash particles having a large particle diameter according to Example 3. It is a figure which shows the guide vane protector which concerns on 2nd Embodiment of this invention. It is a figure which shows the modification of a guide vane protector.
  • the coal fired boiler 1 includes a burner 4 that burns coal 2 pulverized by a pulverizer (not shown) such as a mill with a combustion gas 3.
  • a pulverizer such as a mill with a combustion gas 3.
  • a plurality of heat recovery heat transfer tubes 5 through which water flows are provided in the furnace and the exhaust gas flow path of the coal fired boiler 1, and in the exhaust gas flow path on the downstream side of the coal fired boiler 1, a heat recovery heat transfer tube is provided.
  • One economizer (a economizer) 6 is provided.
  • the coal fired boiler 1 generates steam for driving a power generation turbine (not shown).
  • the exhaust gas outlet 7 of the coal fired boiler 1 is provided on the boiler side wall below the economizer 6, and the front end (upstream end) of the horizontal duct 8 is connected to the exhaust gas outlet 7 in a communicating state.
  • the horizontal duct 8 has a rectangular cylindrical shape extending substantially horizontally, and the rear end (downstream end) of the horizontal duct 8 is connected to the vertical duct 9 in a communicating state.
  • the vertical duct 9 has a rectangular cylindrical shape extending in a substantially vertical direction, and the upper end of the vertical duct 9 is connected to the inlet duct 10 a of the denitration apparatus 10.
  • the horizontal duct 8 and the vertical duct 9 constitute a duct 17, and the duct 17 distributes exhaust gas generated by burning coal in the coal fired boiler 1 from the exhaust gas outlet 7 to the upper side of the vertical duct 9 through the horizontal duct 8.
  • a duct internal space 18 that leads to the top of the denitration apparatus 10 is defined.
  • the denitration apparatus 10 is filled with a denitration catalyst 10b, and ammonia is injected as a reducing agent from an ammonia supply nozzle 10c provided in the middle of the vertical duct 9. Thereby, the denitration apparatus 10 reduces and discharges nitrogen oxides (NOx) contained in the exhaust gas.
  • the exhaust gas from which NOx discharged from the denitration device 10 is removed is discharged from the chimney 14 into the atmosphere via the air heater 11 that heats the combustion gas, the dust collector 12, and the desulfurization device 13.
  • a rear hopper (hopper) 15 communicating with the duct internal space 18 (horizontal duct 8 and vertical duct 9) through a rectangular hopper upper end opening 19 is provided substantially vertically below the vertical duct 9.
  • the upstream inner surface of the rear hopper 15 is inclined rearward and downward from the front edge of the hopper upper end opening 19.
  • a front hopper 16 communicating with the inside of the boiler and the horizontal duct 8 is provided below the coal fired boiler 1. In the front hopper 16 and the rear hopper 15, ash particles in the exhaust gas fall and are collected.
  • the upstream space that extends rearward substantially horizontally from the exhaust gas outlet 7 (see FIG. 1) in the duct internal space 18 has a ceiling surface 22, a bottom surface 23, and a pair of side surfaces 24 (FIG. 2).
  • the downstream space which is partitioned by only one side and extends substantially vertically upward from the rear end of the upstream space is a front surface 25, a rear surface 26 and a pair of side surfaces 27 (only one is illustrated in FIG. 2). ).
  • the bottom surface 23 that defines the lower side of the upstream space of the duct internal space 18 extends continuously forward from the front end edge 20 of the hopper upper end opening 19, and the rear surface 26 that defines the rear side of the downstream space of the duct internal space 18 is
  • the hopper upper end opening 19 extends upward continuously from the rear end edge 21.
  • a plurality of (four in the example of FIG. 2) guide vanes 28 are provided in the duct space 18 above the rear hopper 15 (hopper upper end opening 19).
  • the guide vanes 28 are curved plate-like bodies that are curved so as to bulge rearward and downward from the vicinity of the rear end of the horizontal duct 8 and extend rearward and upward, and are disposed so as to overlap each other while being separated from each other.
  • a bar-like or tubular guide fixing member 29 is fixed to the upper and lower edges of each guide vane 28 by welding, and both ends of each guide fixing member 29 are connected to a pair of side surfaces 24 on the upstream side of the duct 17 or on the downstream side.
  • the pair of side surfaces 27 are fixed by welding.
  • the guide vane 28 is provided over substantially the entire region in the length direction (duct width direction) of the guide fixing member 29.
  • the guide vanes 28 are each fixed to the duct 17 above the rear hopper 15 and guide the exhaust gas flowing from the horizontal duct 8 to the vertical duct 9 vertically upward.
  • a plurality of (three in this embodiment) screen-type collision plates 31 having a rectangular flat plate shape are provided on the bottom surface 23 of the duct 17.
  • the bottom surface 23 on which the screen-like collision plate 31 is provided may be the bottom surface of the horizontal duct 8, or may be the bottom surface on the vertical duct 9 side in the connection portion between the horizontal duct 8 and the vertical duct 9.
  • the plurality of screen-like collision plates 31 are fixed to the bottom surface 23 of the duct 17 and stand up, and are arranged in a line along the direction intersecting with the exhaust gas flow direction (front-rear direction) while being separated from each other.
  • the screen-like collision plates 31 of the present embodiment are arranged in a straight line along a direction substantially orthogonal to the exhaust gas flow direction.
  • the screen-like collision plate 31 is formed by welding a rod-like or tubular collision plate fixing member 32 to the bottom surface 23 (welding portion 33) and welding the screen-like collision plate 31 to the front side of the collision plate fixing member 32 (welding portion 34). To the bottom surface 23.
  • the number of the screen-like collision plates 31 is not limited to three and is arbitrary.
  • the screen-like collision plate 31 stands substantially perpendicular to the bottom surface 23, and the bottom surface 23
  • the protruding amount (projecting height) H1 of the screen-like collision plate 31 from 10 is set to 10 to 15% of the width in the height direction of the horizontal duct 8 (the vertical distance from the bottom surface 23 to the ceiling surface 22) H2.
  • the front-side position L1 of the screen-like collision plate 31 is the rear side (the hopper upper end opening 19 side) of the bottom surface 23 in the front-rear direction, and is 1 to 1.5 m from the front end edge 20 of the hopper upper end opening 19. Is set to
  • the projection height H1 of the screen-like collision plate 31 is preferably in the above range.
  • the screen-like collision plates 31 located at both ends of the plurality of screen-like collision plates 31 are arranged apart from the side surface 24 of the duct 17. This is because, when the screen-like collision plate 31 is in contact with the side surface 24, the ash particles stay between the screen-like collision plate 31 and the side surface 24, thereby providing a flow resistance of the exhaust gas.
  • a rectangular flat inclined collision plate 36 is fixed to the lower portion of the rear surface 26 of the duct 17 (lower portion of the rear surface of the vertical duct 9).
  • the inclined collision plate 36 is formed by welding a rod-like or tubular collision plate fixing member 37 to the rear surface 26 (welding portion 38) and welding the inclined collision plate 36 to the rear surface 26 and the collision plate fixing member 37 (welding portion 39). Fixed to the rear face 26.
  • the inclined collision plate 36 is disposed over the substantially entire area in the duct width direction behind the guide vane 28 and extends from the rear surface 26 to be inclined forward and downward.
  • the protruding amount L3 of the inclined collision plate 36 from the rear surface 26 of the duct 17 is the vertical duct 9. Is set to 5 to 15% of L4 (distance between front surface 25 and rear surface 26) L4.
  • the inclined collision plate 36A that protrudes substantially horizontally accumulates ash particles on the upper surface, and it is necessary to reinforce the vibration of the inclined collision plate 36A caused by the upward flow.
  • the inclined collision plate 36B that is excessively inclined and has a small protrusion amount from the rear surface 26 the ash particles are difficult to contact the inclined collision plate 36B. It is preferable to incline toward.
  • the screen-like collision plates 31 are arranged in one row.
  • the screen-like collision plates 31 may be arranged in a plurality of rows (two rows in the example of FIG. 6) in a staggered manner. Good.
  • the flat inclined collision plates 36 are arranged in one stage.
  • the inclined collision plates 36 are arranged in a plurality of stages at different heights (2 in the example of FIG. 7A).
  • the protruding amount of the inclined collision plate 36 from the rear surface 26 may be different between the respective stages (for example, in the case of two stages, the upper stage and the lower stage).
  • FIG.7 (b) it is good also as the curved collision plate-shaped inclined collision board 40 from which an upper surface becomes convex.
  • the coal fired boiler 1 In the operation of the coal fired boiler 1, the coal fired boiler 1 is supplied with coal 2 and combustion gas (air) 3 to the burner 4 to burn the coal.
  • the heat generated by the combustion reaction of coal heats the water flowing through the heat recovery heat transfer pipe 5, the economizer 6 and the like to generate steam, and the turbine generator generates power.
  • the exhaust gas contains a large amount of ash having a particle size (diameter) of 100 ⁇ m or more.
  • the exhaust gas generated by is discharged from the exhaust gas outlet 7.
  • the ash particles having a large particle size (diameter of 100 ⁇ m or more) in the discharged exhaust gas sink to the bottom of the horizontal duct 8 while flowing through the horizontal duct 8, and flow unevenly at the bottom.
  • a part of the large ash particles unevenly distributed in the lower part of the horizontal duct 8 and entrained in the exhaust gas collide with the screen-like collision plate 31 rising from the bottom surface 23 of the duct 17 upstream of the rear hopper 15.
  • the flow velocity decreases and falls to the rear hopper 15.
  • the ash particles having a large particle size in the exhaust gas are efficiently collected by the rear hopper 15 by the screen-type collision plate 31 and the inclined collision plate 36, and most of the ash particles are removed from the exhaust gas.
  • the exhaust gas from which most of the ash particles having a large particle size have been removed is supplied with ammonia from the ammonia supply nozzle 10c and then guided to the denitration catalyst 10b. NOx in the exhaust gas is reduced while passing through the denitration catalyst 10b. It is decomposed into nitrogen and water. As described above, since most of the ash particles having a large particle size in the exhaust gas are removed before passing through the denitration catalyst 10b, wear of the denitration catalyst 10b can be suppressed.
  • the exhaust gas that has passed through the denitration catalyst 10b is subjected to heat exchange with the combustion air by the air heater 11 to become a low temperature, ash particles are removed by the dust collector 12, and sulfur oxides are removed by the desulfurizer 13, and then the chimney 14 is released into the atmosphere.
  • the front hopper 16 is expressed as the hopper 1
  • the rear hopper 15 is expressed as the hopper 2.
  • FIG. 8 to 11 show the collection ratio (collection rate%) of ash particles for each particle diameter (37 ⁇ m, 65 ⁇ m, 115 ⁇ m, 200 ⁇ m, 360 ⁇ m) by the front hopper (hopper 1) 16 and the rear hopper (hopper 2) 15. It is the result obtained by analysis.
  • FIG. 8 (Comparative Example 1) shows that when both the screen-like collision plate 31 and the inclined collision plate 36 are not provided, FIG. 9 (Example 1) does not provide the inclined collision plate 36, and one row of screen-like collisions.
  • FIG. 10 Embodiment 2 is not provided with the screen-like collision plate 31, but when the flat plate-shaped inclined collision plate 36 is provided, FIG. 11 (Embodiment 3) is one row.
  • FIG. 12 shows the flow of exhaust gas from the exhaust gas outlet 7 to the denitration catalyst 10b in Example 3 (provided with one row of partitioning collision plates 31 and a flat plate-shaped inclined collision plate 36).
  • FIG. 13 shows the result of analyzing the flow of ash particles having a large particle size (360 ⁇ m) from the exhaust gas outlet 7 to the denitration catalyst 10b in Example 3.
  • the collection rate of the large ash particles by the rear hopper 15 is improved by providing the screen-like collision plate 31 and the inclined collision plate 36, and only the screen-like collision plate 31 or the inclined collision. It can be seen that the collection rate is improved even when only the plate 36 is provided. 12 and 13 that the ash particles having a large particle size can be well collected by the rear hopper 15 while suppressing the disturbance of the flow of exhaust gas (increase in the flow resistance).
  • an inclined collision surface 41 is added to the first embodiment, and other configurations are the same as those in the first embodiment, and therefore, the description overlapping with the first embodiment is omitted.
  • the guide vane 28 is disposed at the lower end portion (the end portion on the horizontal duct 8 side) of the guide vane 28 over substantially the entire area in the duct width direction and covers the front and lower sides of the guide fixing member 29.
  • the protector 42 is fixed.
  • the guide vane protector 42 is a plate member having an L-shaped cross section, and is inclined in a rearward and downward direction from a flat plate-shaped protector front plate portion 43 that is inclined forward and downward in front of the guide fixing member 29 and a lower end edge of the protector front plate portion 43. And a flat plate-like protector lower plate portion 44 extending integrally.
  • the protector lower plate portion 44 is fixed to the guide vane 28 via the support 45.
  • the protector lower plate portion 44 of the guide vane protector 42 fixed to the lowermost guide vane 28A (see FIG. 2) among the plurality of guide vanes 28 is provided with a protector extension extending rearward and downward beyond the joint position with the support 45.
  • a portion 46 is provided.
  • the lower surface (front surface) of the protector lower plate portion 44 including the protector extension 46 constitutes an inclined collision surface 41 that is fixedly provided at the lower end portion of the lowermost guide vane 28A and is inclined rearward and downward.
  • the shape of the guide vane protector 42 is not limited to the above, and other shapes (for example, as shown in FIG. 15, a semicircular arc shaped protector front plate portion 47 curved along the front outer surface of the guide fixing member 29 and Further, it may be a J-shaped cross section integrally including a flat plate-like protector lower plate portion 44 extending obliquely downward and rearward from the lower end edge of the protector front plate portion 47.
  • the large particle size is unevenly distributed in the lower part of the horizontal duct 8 and is accompanied by the exhaust gas.
  • the ash particles can be collided with the inclined collision surface 41 and collected by the rear hopper 15, and the collection rate of the large ash particles is further improved.
  • this invention is not limited to the above-mentioned embodiment and modification which were demonstrated as an example, If it is the range which does not deviate from the technical idea which concerns on this invention also except the above-mentioned embodiment etc. Various changes can be made according to the design and the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Separating Particles In Gases By Inertia (AREA)

Abstract

L'extrémité avant d'un conduit horizontal 8 communique avec une sortie de gaz d'échappement d'une chaudière alimentée par serpentin, et l'extrémité arrière du conduit horizontal communique avec l'extrémité inférieure d'un conduit vertical 9. Un conduit 17 définit un espace interne de conduit 18 qui permet au gaz d'échappement émis par la chaudière alimentée par serpentin de s'écouler du conduit horizontal 8 vers le haut du conduit vertical 9, guidant le gaz d'échappement dans un dispositif de dénitration. Une trémie 15 est disposée au-dessous du conduit vertical 9, et communique avec l'espace interne de conduit 18 à travers une ouverture d'extrémité supérieure de trémie 19. De multiples plaques de collision à tamis 31 s'étendent vers l'avant en continu depuis le bord avant 20 de l'ouverture d'extrémité supérieure de trémie 19, et sont érigées sur et fixées à la surface inférieure 23 du conduit 17 qui définit le fond de l'espace interne de conduit 18; dans un état séparé l'un de l'autre, les plaques de collision à tamis 31 sont agencées de façon linéaire le long d'une direction croisant la direction d'écoulement des gaz d'échappement.
PCT/JP2019/007658 2018-02-28 2019-02-27 Dispositif de traitement de gaz d'échappement Ceased WO2019168059A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201980015852.9A CN111818986A (zh) 2018-02-28 2019-02-27 排气处理装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018-035172 2018-02-28
JP2018035172A JP2019147142A (ja) 2018-02-28 2018-02-28 排ガス処理装置

Publications (1)

Publication Number Publication Date
WO2019168059A1 true WO2019168059A1 (fr) 2019-09-06

Family

ID=67806209

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2019/007658 Ceased WO2019168059A1 (fr) 2018-02-28 2019-02-27 Dispositif de traitement de gaz d'échappement

Country Status (3)

Country Link
JP (1) JP2019147142A (fr)
CN (1) CN111818986A (fr)
WO (1) WO2019168059A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111396910A (zh) * 2020-04-02 2020-07-10 浙江先创能源科技股份有限公司 一种适用于水煤浆燃烧锅炉的烟道
CN112797234A (zh) * 2021-01-29 2021-05-14 惠风(浙江)环境科技有限公司 一种自带保温的通风管

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117813146A (zh) 2021-09-28 2024-04-02 三菱重工业株式会社 脱硝装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0295415A (ja) * 1988-09-30 1990-04-06 Babcock Hitachi Kk 排ガス脱硝装置
JPH0525134U (ja) * 1991-09-05 1993-04-02 石川島播磨重工業株式会社 ホツパ
WO2005114053A1 (fr) * 2004-05-21 2005-12-01 Alstom Technology Ltd. Méthode et appareil pour séparer des particules de poussière
JP2013104641A (ja) * 2011-11-16 2013-05-30 Mitsubishi Heavy Ind Ltd 排ガス処理装置
JP2013103214A (ja) * 2011-11-16 2013-05-30 Mitsubishi Heavy Ind Ltd 排ガス処理装置
EP3064833A1 (fr) * 2015-03-06 2016-09-07 Doosan Heavy Industries & Construction Co., Ltd. Appareil de collecte de cendres à grosses particules dans une installation d'énergie thermique
JP2016198701A (ja) * 2015-04-08 2016-12-01 三菱日立パワーシステムズ株式会社 排ガス処理装置
CN106268049A (zh) * 2016-08-12 2017-01-04 东南大学 一种scr脱硝预除尘装置及方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3109154C2 (de) * 1981-02-05 1983-12-29 Trützschler GmbH & Co KG, 4050 Mönchengladbach Vorrichtung zum Abscheiden von Fremdkörpern, insbesondere Schwerteilen wie Metall-, Holz- und Pappteilen o.dgl. aus Baumwollfaserflocken
JP2009202142A (ja) * 2008-02-29 2009-09-10 Mhi Environment Engineering Co Ltd ダスト除去装置
JP5743054B2 (ja) * 2010-11-29 2015-07-01 三菱日立パワーシステムズ株式会社 排ガス処理装置
KR101294240B1 (ko) * 2011-09-30 2013-08-07 한국전력공사 석탄화력 발전소 보일러의 조대응집 비회입자 포집 시스템
CN102989315A (zh) * 2012-12-12 2013-03-27 山东大学 Scr烟气脱硝系统中的清灰装置
JP6385266B2 (ja) * 2014-12-12 2018-09-05 三菱日立パワーシステムズ株式会社 排気ダクト及びボイラ
JP6689523B2 (ja) * 2016-02-15 2020-04-28 三菱日立パワーシステムズインダストリー株式会社 固体粒子回収装置及び流動層ボイラ設備
CN105944458A (zh) * 2016-05-23 2016-09-21 北京烨晶科技有限公司 一种烟气除尘装置及除尘方法
JP6727960B2 (ja) * 2016-07-06 2020-07-22 三菱日立パワーシステムズ株式会社 ダクト構造、ボイラ及び固気二相流からの固体粒子の排除方法
CN107023985A (zh) * 2017-05-16 2017-08-08 无锡市翱宇特新科技发展有限公司 一种高效热风炉

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0295415A (ja) * 1988-09-30 1990-04-06 Babcock Hitachi Kk 排ガス脱硝装置
JPH0525134U (ja) * 1991-09-05 1993-04-02 石川島播磨重工業株式会社 ホツパ
WO2005114053A1 (fr) * 2004-05-21 2005-12-01 Alstom Technology Ltd. Méthode et appareil pour séparer des particules de poussière
JP2013104641A (ja) * 2011-11-16 2013-05-30 Mitsubishi Heavy Ind Ltd 排ガス処理装置
JP2013103214A (ja) * 2011-11-16 2013-05-30 Mitsubishi Heavy Ind Ltd 排ガス処理装置
EP3064833A1 (fr) * 2015-03-06 2016-09-07 Doosan Heavy Industries & Construction Co., Ltd. Appareil de collecte de cendres à grosses particules dans une installation d'énergie thermique
JP2016198701A (ja) * 2015-04-08 2016-12-01 三菱日立パワーシステムズ株式会社 排ガス処理装置
CN106268049A (zh) * 2016-08-12 2017-01-04 东南大学 一种scr脱硝预除尘装置及方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111396910A (zh) * 2020-04-02 2020-07-10 浙江先创能源科技股份有限公司 一种适用于水煤浆燃烧锅炉的烟道
CN112797234A (zh) * 2021-01-29 2021-05-14 惠风(浙江)环境科技有限公司 一种自带保温的通风管

Also Published As

Publication number Publication date
CN111818986A (zh) 2020-10-23
JP2019147142A (ja) 2019-09-05

Similar Documents

Publication Publication Date Title
EP3217096B1 (fr) Conduit d'évacuation et chaudière
WO2013073393A1 (fr) Dispositif de traitement de gaz d'échappement
WO2019168059A1 (fr) Dispositif de traitement de gaz d'échappement
JP5972857B2 (ja) 排気ダクト及びボイラ
KR102126663B1 (ko) 배기 가스 처리 장치
JP5762255B2 (ja) 排ガス処理装置
JP2010264400A (ja) 脱硝装置
JP6785046B2 (ja) 排気ダクト及びボイラ並びに固体粒子の除去方法
TWI778501B (zh) 脫硝裝置及鍋爐
RU2635947C2 (ru) Котел и способ его работы
JP7391651B2 (ja) 脱硝装置及びボイラシステム並びに脱硝装置の設置方法
JP5144447B2 (ja) ボイラ装置
KR101839624B1 (ko) 순환 유동층 보일러용 유해물질 저감장치 및 이를 포함하는 순환 유동층 보일러
JP6845711B2 (ja) ボイラ用ダクト構造、ボイラ及び固気二相流に含まれる固体粒子の低減方法
WO2013114722A1 (fr) Dispositif de traitement des gaz d'échappement
JP6814727B2 (ja) ボイラ
KR100635764B1 (ko) 가스 중의 분체를 분리하는 기구를 이용한 고체 연료 연소장치의 전열관 마모 방지 장치
EP4047271A1 (fr) Installation d'incinération
JPH05172301A (ja) 加圧循環流動層ボイラ
CN120140735A (zh) 一种脱硝除尘一体化布置生物质炉排锅炉
RU2615556C1 (ru) Пылеугольный котел
KR20220007856A (ko) 유동층(流動層) 장치
JP2018200139A (ja) ホッパ構造物、排気ダクト、及びボイラ
WO2013114721A1 (fr) Dispositif de traitement des gaz d'échappement

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19760107

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19760107

Country of ref document: EP

Kind code of ref document: A1