CN107398163A - A kind of scalable and shuttle-type SNCR reducing agent injection apparatus - Google Patents

A kind of scalable and shuttle-type SNCR reducing agent injection apparatus Download PDF

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Publication number
CN107398163A
CN107398163A CN201710860109.6A CN201710860109A CN107398163A CN 107398163 A CN107398163 A CN 107398163A CN 201710860109 A CN201710860109 A CN 201710860109A CN 107398163 A CN107398163 A CN 107398163A
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CN
China
Prior art keywords
injection apparatus
reducing agent
jet pipe
cylinder
cooling collar
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Granted
Application number
CN201710860109.6A
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Chinese (zh)
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CN107398163B (en
Inventor
陈冬林
魏绵源
文聪
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Changsha University of Science and Technology
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Changsha University of Science and Technology
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Priority to CN201710860109.6A priority Critical patent/CN107398163B/en
Publication of CN107398163A publication Critical patent/CN107398163A/en
Application granted granted Critical
Publication of CN107398163B publication Critical patent/CN107398163B/en
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Classifications

    • 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
    • B01D53/77—Liquid phase processes
    • B01D53/79—Injecting reactants
    • 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
    • B01D53/46—Removing components of defined structure
    • B01D53/54—Nitrogen compounds
    • B01D53/56—Nitrogen oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
    • B05B15/68—Arrangements for adjusting the position of spray heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
    • B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/16—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J7/00—Arrangement of devices for supplying chemicals to fire

Abstract

The present invention provides a kind of scalable and shuttle-type SNCR reducing agent injection apparatus, including jet pipe, cooling collar and the swing sleeve being arranged successively from the inside to the outside；The swing sleeve includes vertically disposed cylinder and rotational handle, the sealing structure with cylinder body outer wall form fit is provided with furnace wall, the fixed seat being rotatably connected with rotational handle is provided with the outside of furnace wall, atomizer and hot air inlet are respectively arranged with the rear and front end of jet pipe and reducing agent entrance is additionally provided between the two, sealed movable connection is used between the tail end and jet pipe pipe shaft of the cooling collar, and cooling air intake is additionally provided with cooling collar, the front opening of the cooling collar is in order to discharging cold air and realize the axially free flexible of jet pipe.The device can effectively be adjusted according to the change of flue gas operating mode to the spray angle and spray regime of reducing agent, reducing agent is sufficiently mixed with flue gas, and then improved denitration efficiency and effect, reduced boiler operatiopn cost.

Description

A kind of scalable and shuttle-type SNCR reducing agent injection apparatus
Technical field
The present invention relates to SNCR gas denitrifying technologies field, in particular it relates to which a kind of scalable and shuttle-type SNCR is also Former agent injection apparatus.
Background technology
In recent years, China NOxThe rapid growth of discharge capacity is caused to environment and ecology and had a strong impact on, but existing Policy and denitration technology can not meet actual discharge demand for control.China came into effect from 2012《Thermal power plant's atmosphere pollution Discharge standard》(GB13223-2011), it is desirable to the NO of new construction of coal-fired boiler dischargexMass concentration is no more than 100mg/m3, from 2014 From on July 1, in, put into operation fired power generating unit NO for key areaxDischarge capacity is no more than 100mg/m3, non-key area was thrown before 2003 The unit of production is no more than 200mg/m3；Therefore, as NOxThe Industrial Boiler equipment of discharge major part is faced with urgent denitrating flue gas Task.
The cardinal principle of denitrating flue gas be by into boiler flue spray into ammonia reducing agent, and make its with tail flue gas Reaction of nitrogen oxides, according to the difference of extraneous reaction condition, mainly includes SCR and SNCR two from the discharge capacity for reducing nitrogen oxides Kind method of denitration.Wherein, the problems such as SCR methods are because of its catalyst requirement height, installation and transformation difficulty, cost of investment costliness, significantly Constrain its application and development on Industrial Boiler；And SNCR (Selective Non-Catalytic Reductio, selection Property non-catalytic reduction) method, be it is a kind of without using catalyst, in 850~1100 DEG C of temperature ranges, by the reducing agent containing amino (such as ammoniacal liquor, urea liquid etc.) is sprayed into stove, by the NO in flue gasxReduction removes and generates N2And H2O cleaning denitration technology, Because SNCR technologies are to carry out NO using high-temperature area suitable in stovexReduction reaction, without putting into expensive catalyst, equipment Transformation is simple, and initial investment is low, and operating cost is not high, thus is applied under current environment to the denitrating flue gas of Industrial Boiler Reason.
Because SNCR denitration is owned by France in fast response, very sensitive to temperature, if reaction environment temperature is too high, reducing agent is anti- And NO can be oxidized tox, play reaction；If reaction environment temperature is too low, NO in flue gas can be causedxReduce insufficient, shadow Denitration efficiency and denitration effect are rung, therefore, should use up makes reaction temperature be between 800-1000 DEG C in which can measure.In view of in burner hearth Temperature it is different everywhere and even the temperature of the same area are also to change with the change of boiler load, if being reduced in injection It can be injected in the appropriate area in optimum temperature range, then can not only according to the profiling temperatures in burner hearth during agent Improve the denitration efficiency and denitration effect of flue gas, moreover it is possible to the invalid loss of reducing agent is greatly avoided, so as to reduce reducing agent Usage amount, the operating cost of Industrial Boiler is effectively reduced, this energy-saving and emission-reduction to heat power plant boiler is significant.
Existing reducing agent injection apparatus has the disadvantage that：1st, the spray orifice position after device installs is fixed, it is impossible to root Spray orifice position is adjusted in time according to the fluctuation situation of flue gas operating mode, the reducing agent ejected can not fall into the area of suitable temperature In domain, preferable denitration efficiency is not reached；2nd, the area of spray orifice injection is fixed, and the reducing agent that can not be sparged into is fully mixed with flue gas Close, and then cause the waste of reducing agent, the secondary pollution caused to environment is set；Pipe body part of 3 jet pipes close to spray orifice position It is chronically in the working environment of high temperature, high dust, effect of heat insulation is bad, and service life is shorter, need to often change, and adds fortune Row expense and labor intensity.
Chinese patent CN201610739696 discloses a kind of automatic regulation type reducing agent injection apparatus for denitration, bag Include by the first motor, the first special shape gear, the second special shape gear, rack, head rod, the first L-shaped connecting rod, slide rail, sliding block, Second motor, screw rod etc., mounting bracket inner right wall top are provided with the second motor of guide rod, are cased with guide pin bushing on guide rod, guide pin bushing is with leading Bar coordinates.The injection apparatus is provided with huge mounting bracket and drives spray gun to swing up and down by rack and pinion engagement, structure It is complicated, space-consuming is big, and the sealing problem of furnace wall is dealt with when not swung to spray gun, it is contemplated that this point, the hair Bright practicality Shortcomings, while the invention is also not involved with the related content that cooling protection is carried out to spray gun.
The content of the invention
It is an object of the invention to provide a kind of spray orifice position simple in construction, flexible to operation, adjustable and jet angle The reducing agent injection apparatus of degree, to solve the problems, such as to propose in background technology.
To achieve the above object, the invention provides a kind of scalable and shuttle-type SNCR reducing agent injection apparatus, bag Include the jet pipe for inserting boiler internal and being arranged successively from the inside to the outside in front end, cooling collar and the cylinder for swinging sleeve；It is described The rotational handle that sleeve also includes vertically being connected on the cylinder body outer wall is swung, is provided with the furnace wall of boiler and the cylinder The sealing structure of external wall form fit, fixed seat is provided with the outside of furnace wall and the rotational handle by bearing with it is described solid Realize and be rotatably connected between reservation, atomizer and hot air inlet are respectively arranged with the rear and front end of the jet pipe and two Reducing agent entrance is additionally provided between person, the reducing agent entrance is located on the outside of furnace wall, is realized by hot-air flowing to reducing agent Transport and atomization, use sealed movable connection between the pipe shaft of the tail end of the cooling collar and the jet pipe so that institute Stating jet pipe can move axially relative to cooling collar, and be additionally provided with cooling air intake on the cooling collar, institute The front opening of cooling collar is stated in order to discharge cold air and realize the axially free flexible of the jet pipe；By to rotating hand Handle and jet pipe pipe shaft apply swing and scaling operation of the external force realization to whole injection apparatus.
Preferably, the sealing structure includes two retractable doors for being respectively arranged at both sides above and below the cylinder, and each Retractable door includes sealing along at least two groups of piston seals of the barrel lenght directional spreding and with the piston type The diaphragm seal that part linkage is set, the piston seal include hollow and recreation room towards cylinder direction opening, are arranged at institute State the movable post at recreation room aperture position and the spring being arranged in the recreation room, the both ends of the spring respectively with One end that the bottom surface of recreation room and movable post are located in recreation room is connected, the other end of the movable post and with its homonymy set Diaphragm seal be connected, the diaphragm seal is globoidal structure and protected all the time with the outer wall of the cylinder under the drive of the movable post Hold and be close to.
Preferably, one end that the movable post is located in recreation room is T font structures, and in the exit of the recreation room Step is equipped with, can be realized by the clamping between the step and movable post T font structures and the position of the movable post is fixed.
Preferably, thermal insulation layer is set to be produced to reduce high temperature to sealing structure by the side of boiler internal in the sealing structure Raw damage simultaneously extends its service life.
Preferably, the injection apparatus also includes being used for the first driving for controlling the rotational handle direction of rotation and angle Device and the second drive device for controlling the jet pipe telescopic direction and distance.
Preferably, the injection apparatus also includes being used to place the first driving means and/or the second drive device Bottom plate, the bottom plate are connected and are provided with the bottom surface of the bottom plate scalable by the cylinder of flange and the swing sleeve Bar, the both ends of the telescopic rod are hinged with the bottom plate and furnace wall outer wall respectively.
Technical scheme provided by the invention at least has the advantages that：
1st, the injection apparatus is simple in construction and flexible and convenient to use, can be according to the situation of change of flue gas operating mode to reducing agent Eject position and spray angle effectively adjusted so that reducing agent is sprayed in the suitable region of reaction temperature and and cigarette Gas is sufficiently mixed, and then improves the denitration efficiency and denitration effect of flue gas, is reduced the dosage of reducing agent, is reduced boiler Operating cost；
2nd, the injection apparatus is provided with the sealing structure of matching in furnace wall, and it makes diaphragm seal using the recovery of spring All the time it is close on the outer wall for swinging sleeve, had both ensure that the sealing of boiler, reduces potential safety hazard, device will not be hampered again Freely swing, there is practicality and promotional value；
3rd, the drive device integrated hanging of the injection apparatus sets and is connected by telescopic rod and furnace wall outer wall, neither Need to set up extra support frame and force structure is simple, occupies little space, and do not influence the flexible of injection apparatus and swing behaviour Make；
4th, the injection apparatus is swinging one layer of cooling collar of setting between sleeve and jet pipe, by the way that cold air is delivered into spray Hole is implemented around cooling to jet pipe fore-end, and outermost pendulum is also avoid while extension fixture service life The potential safety hazards such as scald be present because temperature is too high in moving sleeve.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, make required in being described below to embodiment Accompanying drawing is briefly described, it should be apparent that, drawings discussed below is only some embodiments of the present invention, for this For the those of ordinary skill of field, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings other Accompanying drawing, wherein：
Fig. 1 is the structural representation of injection apparatus of the present invention；
Fig. 2 is the structural representation of the fixed seat of injection apparatus shown in Fig. 1；
Fig. 3 is the A-A of the swing sleeve of injection apparatus shown in Fig. 1 to sectional view；
Fig. 4 is the structural representation of the sealing structure of injection apparatus shown in Fig. 1；
In figure：01 furnace wall, 02 water screen tube, 1 jet pipe, 2 cooling collars, 3 swing sleeves, 4 sealing structures, 5 fixed seats, 6 First driving means, 7 second drive devices, 8 bottom plates, 9 telescopic rods；11 atomizers, 12 hot air inlets, 13 reducing agents enter Mouthful；21 cooling air intakes；31 cylinders, 32 rotational handles；41 diaphragm seals, 42 recreation rooms, 43 movable posts, 44 springs, 45 is heat-insulated Layer.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only the part of the embodiment of the present invention, rather than whole embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained all other under the premise of creative work is not made Embodiment, belong to the scope of protection of the invention.
Referring to Fig. 1, a kind of scalable and shuttle-type SNCR reducing agent injection apparatus, including jet pipe 1, cooling collar 2, pendulum Moving sleeve 3, sealing structure 4, fixed seat 5, bottom plate 8 and telescopic rod 9；The jet pipe 1, cooling collar 2 and swing sleeve 3 are by interior To being arranged successively outside and the front end of three both passes through furnace wall 01 and inserts boiler internal, the sealing structure 4 is arranged on furnace wall 01 At insertion position, the fixed seat 5 is arranged on the outside of furnace wall and for realizing that fortune is fixed and rotated in the position of the swing sleeve 3 Drive device dynamic, that the bottom plate 8 is connected with the swing sleeve 3 by flange and acted for placing control injection apparatus, The both ends of the telescopic rod 9 are rotatably connected with the bottom surface of the bottom plate 8 and furnace wall outer wall respectively by hinge so that stove The stable force structure of a triangle is formed between wall outer wall, bottom plate and telescopic rod.
Atomizer 11 and hot air inlet 12 are respectively arranged with the rear and front end of the jet pipe 1 and are also set between the two Reducing agent entrance 13 is equipped with, the transport and atomization realized to reducing agent can be flowed by hot-air, and hot-air can also be to reduction Agent is preheated, and the reducing agent entrance 13 is located on the outside of furnace wall.The pipe shaft of the tail end of the cooling collar 2 and the jet pipe 1 Between use sealed movable connection so that the jet pipe 1 can move axially relative to cooling collar 2, in the cooling Cooling air intake 21 is additionally provided with sleeve pipe 2, cold air is delivered at cooling collar 2 and the front position for swinging sleeve 3 simultaneously Cooling protection effect is played, to avoid high temperature from influenceing the service life of device, the front opening of the cooling collar 2 is in order to arranging Go out cold air and realize the axially free flexible of the jet pipe 1.
In the lump referring to Fig. 2 and Fig. 3, the swing sleeve 3 for cross-shaped configuration and including cylinder 31 be vertically fixed on institute State the rotational handle 32 of the outer wall both sides of cylinder 31, the fixed seat 5 is nearly Ω types structure and its main body along the rotational handle 32 Peripheral ring be bolted to connection around parcel, two legs of the fixed seat on furnace wall outer wall, the rotational handle 32 are rotatably connected by rolling bearing and the main body inner wall of the fixed seat 5.
With continued reference to Fig. 4, the sealing structure 4 is stretched for two of both sides including being respectively arranged at the cylinder about 31 Door, and each retractable door include along the length direction of cylinder 31 distribution two groups of piston seals and with the work The diaphragm seal 41 that the linkage of plug seal is set, the piston seal include hollow and towards the recreation room of cylinder direction opening 42nd, the movable post 43 being arranged at the aperture position of recreation room 42 and the spring 44 being arranged in the recreation room 42, institute The both ends for stating spring 44 are located at one end in recreation room with the bottom surface of recreation room 42 and movable post 43 respectively and are connected, the activity The other end of post 43 and the diaphragm seal 41 set with its homonymy are connected, and the diaphragm seal 41 is in semicircular panel construction and its Concave and the outer wall form fit of the cylinder 31 so that upper and lower two diaphragm seals 41 can begin under the drive of movable post 43 The whole outer wall with the cylinder 31 is held against, and then realizes 360 ° of sealing protections to cylinder 31.
And in order to prevent movable post from deviating from and make its position in motion more firm, in the exit of the recreation room 42 Step horizontal-extending inwardly is equipped with, while one end that the movable post 43 is located in recreation room is designed to T font structures, should Coordinate clamping between T font structures and the step.
In the present embodiment, the sealing structure 4 also includes being arranged on by the thermal insulation layer 45 in boiler in side direction, described Thermal insulation layer 45 is arranged between the outer wall of water screen tube 02 and recreation room 42, can reduce high temperature to being damaged caused by sealing structure 4 Hinder and extend its service life.The water screen tube 02 is arranged on furnace wall inwall and bypasses the region of nozzle 11, makes Obtaining the injection apparatus has enough spray angles and space.
The drive device include be used for control the direction of rotation of rotational handle 32 and angle first driving means 6, And for controlling the second drive device 7 of the telescopic direction of jet pipe 1 and distance.Wherein, the first driving means 6 are electricity Machine；Second drive device 7 includes motor, cylinder and connecting rod, and the motor and cylinder pass through fixed arm and fixed column respectively It is arranged on the bottom plate 8, the motor controls the flexible of piston by controlling the change of cylinder pressure, and the cylinder Piston is connected further through the connecting rod of L-shaped with the pipe shaft of the jet pipe 1, therefore, can be real by the flexible of motor driven cylinder piston Existing freely the stretching in cooling collar 2 of jet pipe 1, and then realize the automatic telescopic function of injection apparatus.
The preferred embodiments of the present invention are the foregoing is only, not thereby limit the scope of patent protection of the present invention, for For those skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention, it is every Any improvement made using description of the invention and accompanying drawing content or equivalent substitution, directly or indirectly it is used in other related Technical field, it all should be included within the scope of the present invention.

Claims (6)

1. a kind of scalable and shuttle-type SNCR reducing agent injection apparatus, it is characterised in that inserted including front end in boiler Portion and jet pipe (1), cooling collar (2) and the cylinder (31) for swinging sleeve (3) being arranged successively from the inside to the outside；The swing Sleeve (3) also includes the rotational handle (32) being vertically connected on the cylinder (31) outer wall, is set in the furnace wall (01) of boiler The sealing structure (4) with the cylinder (31) outer wall form fit is equipped with, fixed seat (5) and described turn are provided with the outside of furnace wall Fixed handle (32) is rotatably connected by being realized between bearing and the fixed seat (5), is distinguished in the rear and front end of the jet pipe (1) It is provided with atomizer (11) and hot air inlet (12) and reducing agent entrance (13), the reducing agent is additionally provided between the two Entrance (13) is located on the outside of furnace wall, and the transport and atomization to reducing agent are realized by hot-air flowing, the cooling collar (2) Sealed movable connection is used between the pipe shaft of tail end and the jet pipe (1) so that the jet pipe (1) can be relative to cooling collar (2) move axially, and cooling air intake (21) is additionally provided with the cooling collar (2), the cooling collar (2) Front opening in order to discharging cold air and realize the axially free flexible of the jet pipe (1)；By to rotational handle and spray Pipe pipe shaft applies swing and scaling operation of the external force realization to whole injection apparatus.
2. injection apparatus according to claim 1, it is characterised in that the sealing structure (4) includes being respectively arranged at institute Two retractable doors of cylinder (31) both sides up and down are stated, and each retractable door is included along the distribution of the cylinder (31) length direction At least two groups of piston seals and the diaphragm seal (41) set with piston seal linkage, the piston type are close Sealing includes hollow and recreation room (42) towards cylinder direction opening, the activity being arranged at the recreation room (42) aperture position Post (43) and the spring (44) being arranged in the recreation room (42), the both ends of the spring (44) respectively with recreation room (42) one end that bottom surface and movable post (43) is located in recreation room is connected, the other end of the movable post (43) and same with it Side set diaphragm seal (41) be connected, the diaphragm seal (41) be globoidal structure and under the drive of the movable post (43) all the time It is held against with the outer wall of the cylinder (31).
3. injection apparatus according to claim 2, it is characterised in that the movable post (43) is located at one end in recreation room For T font structures, and step is equipped with the exit of the recreation room (42), passes through the step and movable post T font structures Between clamping can realize the position of the movable post is fixed.
4. injection apparatus according to claim 3, it is characterised in that lean on the one of boiler internal in the sealing structure (4) Side sets thermal insulation layer (45) to reduce high temperature to its service life is damaged and extended caused by sealing structure.
5. injection apparatus according to claim 1, it is characterised in that the injection apparatus also includes being used to control described turn The first driving means (6) of fixed handle (32) direction of rotation and angle and for control the jet pipe (1) telescopic direction and away from From the second drive device (7).
6. injection apparatus according to claim 5, it is characterised in that the injection apparatus also includes being used to place described the The bottom plate (8) of one drive device (6) and/or the second drive device (7), the bottom plate (8) pass through flange and the swing sleeve (3) cylinder (31) is connected and telescopic rod (9), the both ends of the telescopic rod (9) are provided with the bottom surface of the bottom plate (8) It is hinged respectively with the bottom plate (8) and furnace wall outer wall.
CN201710860109.6A 2017-09-21 2017-09-21 Telescopic and swinging SNCR (selective non-catalytic reduction) reducing agent injection device Active CN107398163B (en)

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CN201710860109.6A CN107398163B (en) 2017-09-21 2017-09-21 Telescopic and swinging SNCR (selective non-catalytic reduction) reducing agent injection device

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Application Number Priority Date Filing Date Title
CN201710860109.6A CN107398163B (en) 2017-09-21 2017-09-21 Telescopic and swinging SNCR (selective non-catalytic reduction) reducing agent injection device

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CN107398163B CN107398163B (en) 2023-09-29

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109847552A (en) * 2019-01-16 2019-06-07 安徽海螺水泥股份有限公司 A kind of cement kiln flue gas denitrating system and its control method
CN114225682A (en) * 2021-10-29 2022-03-25 山西昱光发电有限责任公司 Low-load denitration method for circulating fluidized bed boiler
CN116870685A (en) * 2023-09-06 2023-10-13 南京中电环保科技有限公司 HTR-3SO combined high-efficiency denitration device and denitration method

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB694185A (en) * 1949-09-01 1953-07-15 Wilhelm Kopperschmidt Spray gun
DE4236371A1 (en) * 1992-10-28 1994-05-05 Erno Raumfahrttechnik Gmbh Injection device and method
JP2002306996A (en) * 2001-02-09 2002-10-22 Konan Medical Inc Marking apparatus
CN103100500A (en) * 2013-03-08 2013-05-15 上海致元自动化科技有限公司 Pneumatic spray gun
EP2712691A1 (en) * 2012-09-27 2014-04-02 SMS Siemag AG Device and method for secondary cooling in a casting machine
CN203663697U (en) * 2014-01-08 2014-06-25 上海卫源节能环保科技有限公司 Swing type spray gun
CN204307771U (en) * 2014-11-21 2015-05-06 北京洛卡环保技术有限公司 A kind of telescoping mechanism for SNCR denitrating flue gas injector
CN207221680U (en) * 2017-09-21 2018-04-13 长沙理工大学 A kind of scalable and shuttle-type SNCR reducing agent injection apparatus

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB694185A (en) * 1949-09-01 1953-07-15 Wilhelm Kopperschmidt Spray gun
DE4236371A1 (en) * 1992-10-28 1994-05-05 Erno Raumfahrttechnik Gmbh Injection device and method
JP2002306996A (en) * 2001-02-09 2002-10-22 Konan Medical Inc Marking apparatus
EP2712691A1 (en) * 2012-09-27 2014-04-02 SMS Siemag AG Device and method for secondary cooling in a casting machine
CN103100500A (en) * 2013-03-08 2013-05-15 上海致元自动化科技有限公司 Pneumatic spray gun
CN203663697U (en) * 2014-01-08 2014-06-25 上海卫源节能环保科技有限公司 Swing type spray gun
CN204307771U (en) * 2014-11-21 2015-05-06 北京洛卡环保技术有限公司 A kind of telescoping mechanism for SNCR denitrating flue gas injector
CN207221680U (en) * 2017-09-21 2018-04-13 长沙理工大学 A kind of scalable and shuttle-type SNCR reducing agent injection apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109847552A (en) * 2019-01-16 2019-06-07 安徽海螺水泥股份有限公司 A kind of cement kiln flue gas denitrating system and its control method
CN114225682A (en) * 2021-10-29 2022-03-25 山西昱光发电有限责任公司 Low-load denitration method for circulating fluidized bed boiler
CN116870685A (en) * 2023-09-06 2023-10-13 南京中电环保科技有限公司 HTR-3SO combined high-efficiency denitration device and denitration method
CN116870685B (en) * 2023-09-06 2023-12-29 南京中电环保科技有限公司 HTR-3SO combined high-efficiency denitration device and denitration method

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