CN110496519A - A kind of fluidized bed furnace outlet particle substance treating method and system - Google Patents
A kind of fluidized bed furnace outlet particle substance treating method and system Download PDFInfo
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- CN110496519A CN110496519A CN201910814577.9A CN201910814577A CN110496519A CN 110496519 A CN110496519 A CN 110496519A CN 201910814577 A CN201910814577 A CN 201910814577A CN 110496519 A CN110496519 A CN 110496519A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
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- 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
- B01D53/60—Simultaneously removing sulfur oxides and nitrogen oxides
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- 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
- B01D53/78—Liquid phase processes with gas-liquid contact
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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Abstract
The embodiment of the invention discloses a kind of fluidized bed furnace outlet particle substance treating methods, comprising steps of ammonium hydroxide configures；Increase smoke moisture；Increase flue gas breakdown voltage；Electrostatic precipitation；Its device includes sequentially connected ammonium hydroxide case, hot-blast stove and electrostatic dust collector, and the smoke outlet of hot-blast stove is provided with furnace roof ammonia water spray gun, is connected between hot-blast stove and electrostatic dust collector by smoke exhaust pipe；Dilution tank is provided between ammonium hydroxide case and hot-blast stove, dilution tank is connected with pure water tank；The exhanst gas outlet of hot-blast stove is additionally provided with the swirl-flow devices that the direct current flue gas for will generate in hot-blast stove forms eddy flow flue gas, and furnace roof ammonia water spray gun is used for the eddy flow center of rotational flow and spray flue gas；Gathering dust for electrostatic dust collector is connected between entrance and pure water tank by spray tube, and one end of spray tube is provided with pure water spray head；Present invention compensation is since exhaust gas temperature is high or the low caused density of air pressure is small, breakdown voltage decline, the not high defect of dust-collecting efficiency.
Description
Technical field
The present embodiments relate to particulate matter dust-extraction unit technical fields, and in particular at a kind of fluidized bed furnace outlet particulate matter
Manage method and system.
Background technique
Electric power, chemical industry, metallurgy, influence of the coal-fired flue-gas emission for atmosphere pollution of manufacturing are very big.Wherein, it fires
The harmful substances such as flue dust contained by flue-gas, sulfur dioxide, nitrogen oxides are to cause the root of atmosphere pollution, acid rain and greenhouse effects
One of source.Currently, China has carried out large-scale flue gas desulfurization project, but flue gas emission is not able to satisfy existing mark still
Alignment request still needs to further administer.With the attention that Environmental is protected, the requirement that existing enterprise produces each discharge index is all compared
It is relatively stringent.The discharges such as particulate matter, nitrogen oxides and the sulfur dioxide of gypsum board industry fluidized bed furnace have to comply with requirement, some areas
Environmental Protection Agency require granular material discharged value to be less than 50mg/Nm3, due to the limitation of existing equipment, most of factory's particulate matter row
It puts not up to standard.
Smoke moisture influences dust specific resistance.When dust specific resistance is excessively high, increases smoke moisture, be adhered to hydrone
On the poor dust of electric conductivity, dust specific resistance value can be reduced, inverse corona is not likely to produce, to improve dust-collecting efficiency.Work as powder
When dirt resistance is too small, increase humidity, hydrone is adhered on dust with good conductivity, and the specific resistance value of dust can be improved.
But in existing ammonium hydroxide dust-extraction unit, ammonia spray is generally directlyed adopt, after dust specific resistance value reduces,
But it is difficult to compensate for since exhaust gas temperature is high or the low caused density of air pressure is small, breakdown voltage decline, dust-collecting efficiency is not high
Defect.
In addition, being easy to produce the tube wall accumulation for crystallizing and being attached to smoke exhaust pipe during using ammonia spray flue gas, making
At the problem that cleaning tube wall incrustation causes sprinkling equipment efficiency very low, so as to cause the not high problem of efficiency of dust collection.
Summary of the invention
For this purpose, the embodiment of the present invention provides a kind of fluidized bed furnace outlet particle substance treating method and system, to solve existing skill
It is difficult to compensate for hitting since exhaust gas temperature is high or the low caused density of air pressure is small caused by increasing in art with smoke moisture
Wear voltage decline, smoke exhaust pipe the problem of being easy to produce crystallization during dust-collecting efficiency is not high and spray.
To achieve the goals above, the embodiment of the present invention provides the following technical solutions:
A kind of fluidized bed furnace outlet particle substance treating method, comprising the following steps:
S100, ammonium hydroxide configuration: the ammonium hydroxide that concentration is 20% is diluted to the weak ammonia that concentration is 5% with pure water；
S200, increase smoke moisture: being sprayed using configured 5% weak ammonia spray in hot-blast stove fume air outlet
Flue gas surface, reduce flue gas in dust specific resistance value；
S300, increase flue gas breakdown voltage: the flue gas after above-mentioned weak ammonia spray is entering electrostatic dust collector
Flue gas breakdown voltage is improved using pure water spray before；
S400, electrostatic precipitation: electrostatic precipitation is carried out to the flue gas after pure water sprays using electrostatic dust collector.
The embodiment of the present invention is further characterized in that in s 200, the spray rate of the weak ammonia is greater than 400L/h.
The embodiment of the present invention is further characterized in that, in S300, pure water is 280~300L/h to the spray rate of flue gas.
The embodiment of the present invention is further characterized in that in s 200, the flue gas is in the form of eddy flow from the center quilt of eddy flow
Weak ammonia spray.
A kind of fluidized bed furnace outlet particulate matter processing system, including sequentially connected ammonium hydroxide case, hot-blast stove and electrostatic dust collection dress
It sets, the smoke outlet of the hot-blast stove is provided with furnace roof ammonia water spray gun, passes through between the hot-blast stove and electrostatic dust collector
Smoke exhaust pipe connection；
Dilution tank is provided between ammonium hydroxide case and hot-blast stove, and the dilution tank is connected with pure water tank, the ammonium hydroxide
High concentration ammonium hydroxide in case and the pure water in pure water tank are delivered in dilution tank through respective aqueduct is diluted to low concentration ammonium hydroxide；
The exhanst gas outlet of the hot-blast stove is additionally provided with the eddy flow dress that the direct current flue gas for will generate in hot-blast stove forms eddy flow flue gas
It sets, furnace roof ammonia water spray gun is used to spray the eddy flow center of the eddy flow flue gas；The electrostatic dust collector gather dust entrance with it is pure
It is connected between water tank by spray tube, the spray tube is provided with close to the one end for the entrance that gathers dust for gathering dust entrance to entering
Eddy flow flue gas carries out the pure water spray head of spray pure water.
The embodiment of the present invention is further characterized in that: the swirl-flow devices include:
Smoke guiding tube, positioned at the entrance of the direct current flue gas of hot-blast stove discharge, endcapped；
Spray cylinder is mounted on the internal axis position of smoke guiding tube by bearing, and can be used for along the axis rotation of smoke guiding tube
Eddy flow flue gas is generated, furnace roof ammonia water spray gun described in the head end face of spray cylinder, end is connect with smoke exhaust pipe；
Smoke guide pipe surround and runs through the inner tube wall of the spray cylinder, and the end of the smoke guide pipe extends to the interior of spray cylinder
Portion.
The embodiment of the present invention is further characterized in that, the smoke guide pipe perpendicular to the spray cylinder inner wall direction, uniformly
And it is inclined around spray cylinder inner wall EDS maps, and the angle between the outside wall surface of the relatively described spray cylinder of the smoke guide pipe is less than
90 degree.
The embodiment of the present invention is further characterized in that, is provided with the first ammonium hydroxide on the pipeline between the ammonium hydroxide case and dilution tank
Pump；The first pure water pump is provided on pipeline between the pure water tank and dilution tank；Weak ammonia in the dilution tank passes through
Second aqua ammonia pump is transported at furnace roof ammonia water spray gun；It is provided on the spray tube quiet for the pure water in pure water tank to be delivered to
Second pure water pump of the entrance that gathers dust of electric dust arrester installation.
The embodiment of the present invention is further characterized in that the diameter of the spray cylinder is the 2/3~3/4 of smoke guiding tube diameter.
The embodiment of the present invention is further characterized in that the velocity of rotation of the spray cylinder is 90~120r/min.
The embodiment of the present invention has the advantages that
(1) present invention utilizes pure again to the flue gas after an ammonia spray before entering electrostatic dust collector
The temperature that water reduces flue gas improves the dust-collecting efficiency of electrostatic dust collector to increase the breakdown voltage of flue gas；
(2) present invention makes flue gas form high-speed rotating Whirl deposite tank using swirl-flow devices, after avoiding ammonium hydroxide and flue gas from combining
It is attached to the surface scale of smoke exhaust pipe, improves subsequent spray efficiency.
Detailed description of the invention
It, below will be to embodiment party in order to illustrate more clearly of embodiments of the present invention or technical solution in the prior art
Formula or attached drawing needed to be used in the description of the prior art are briefly described.It should be evident that the accompanying drawings in the following description is only
It is merely exemplary, it for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer, which is extended, obtains other implementation attached drawings.
Structure depicted in this specification, ratio, size etc., only to cooperate the revealed content of specification, for
Those skilled in the art understands and reads, and is not intended to limit the invention enforceable qualifications, therefore does not have technical
Essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the function of the invention that can be generated
Under effect and the purpose that can reach, should all still it fall in the range of disclosed technology contents obtain and can cover.
Fig. 1 is the method flow diagram of the embodiment of the present invention；
Fig. 2 is the overall structure diagram of apparatus of the present invention embodiment；
Fig. 3 is the structural schematic diagram of the swirl-flow devices of apparatus of the present invention.
In figure:
1- ammonium hydroxide case；2- hot-blast stove；3- electrostatic dust collector；4- dilution tank；5- pure water tank；6- furnace roof ammonia water spray gun；7-
Swirl-flow devices；8- spray tube；9- pure water spray head；10- smoke exhaust pipe；The first aqua ammonia pump of 11-；The first pure water pump of 12-；13- second is pure
Water pump；The first aqua ammonia pump of 14-；701- smoke guiding tube；702- bearing；703- spray cylinder；704- smoke guide pipe.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily, it is clear that described embodiment is the present invention one
Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
Smoke moisture influences dust specific resistance.When dust specific resistance is excessively high, increases smoke moisture, be adhered to hydrone
On the poor dust of electric conductivity, dust specific resistance value can be reduced, inverse corona is not likely to produce, to improve dust-collecting efficiency.Work as powder
When dirt resistance is too small, increase humidity, hydrone is adhered on dust with good conductivity, and the specific resistance value of dust can be improved.
But in existing ammonium hydroxide dust-extraction unit, ammonia spray is generally directlyed adopt, after dust specific resistance value reduces,
But it is difficult to compensate for since exhaust gas temperature is high or the low caused density of air pressure is small, breakdown voltage decline, dust-collecting efficiency is not high
Defect.
Embodiment one:
For this purpose, as shown in Figure 1, the present invention provides a kind of fluidized bed furnace outlet particle substance treating methods, it is intended to by twice
The mode of spray improves the specific resistance value of dust using the ammonium hydroxide after dilution for the first time；It is further sprayed by pure water for the second time
Flue gas increases the breakdown voltage of flue gas, improves dust-collecting efficiency.It is specific:
The following steps are included:
S100, ammonium hydroxide configuration: the ammonium hydroxide that concentration is 20% is diluted to the weak ammonia that concentration is 5% with pure water；
S200, increase smoke moisture: being sprayed using configured 5% weak ammonia spray in hot-blast stove fume air outlet
Flue gas surface, reduce flue gas in dust specific resistance value；Preferably, the spray rate of weak ammonia is greater than 400L/h.And
Flue gas is diluted ammonia spray from the center of eddy flow in the form of eddy flow.
S300, increase flue gas breakdown voltage: the flue gas after above-mentioned weak ammonia spray is entering electrostatic dust collector
Flue gas breakdown voltage is improved using pure water spray before；Preferably, pure water is 280~300L/h to the spray rate of flue gas.
S400, electrostatic precipitation: electrostatic precipitation is carried out to the flue gas after pure water sprays using electrostatic dust collector.
Embodiment two:
As shown in Figures 2 and 3, for the method that above-mentioned reduction fluidized bed furnace outlet particle concentration is explained further, this hair
It is bright that a kind of fluidized bed furnace outlet particulate matter processing system of the above method convenient to carry out is provided.The device in addition to can after realize embodiment
Outside one method, the tube wall for being easy to produce during solving ammonia spray flue gas and crystallizing and be attached to smoke exhaust pipe is additionally aided
Accumulation, causes to spray inefficient problem.It is specific:
The device includes sequentially connected ammonium hydroxide case 1, hot-blast stove 2 and electrostatic dust collector 3 common in conventional apparatus.Heat
The smoke outlet of wind furnace 2 is provided with furnace roof ammonia water spray gun 6, is connected between hot-blast stove 2 and electrostatic dust collector 3 by smoke exhaust pipe 10
It connects.The high-temperature flue gas generated in hot-blast stove 2 ammonium hydroxide is increased humidity using furnace roof ammonia water spray gun 6 by the ammonium hydroxide in ammonium hydroxide case 1, and
It is discharged into electrostatic dust collector 3 and is further processed through smoke exhaust pipe 10.
Above-mentioned process is adhered to ammonium hydroxide molecule on the poor dust of electric conductivity, can reduce dust specific resistance
Value, the generation of less inverse corona improve dust-collecting efficiency to a certain extent.But when dust resistance is too small, due to exhaust gas temperature
Degree is high or the low caused density of air pressure is small, breakdown voltage decline, and dust-collecting efficiency is not high instead.
Therefore feature of this invention is that: electrostatic dust collector is being entered to the flue gas after an ammonia spray
Before 3, the temperature of flue gas is reduced using pure water, to increase the breakdown voltage of flue gas, improves the effect of gathering dust of electrostatic dust collector 3
Rate.It is specific:
Apparatus of the present invention are provided with dilution tank 4 between ammonium hydroxide case 1 and hot-blast stove 2, and dilution tank 4 is connected with pure water tank
5, the pure water in high concentration ammonium hydroxide and pure water tank 5 in ammonium hydroxide case 1 be delivered in dilution tank 4 through respective aqueduct be diluted to it is low
Concentration ammonium hydroxide.Gathering dust for electrostatic dust collector 3 is connected between entrance and pure water tank 5 by spray tube 8, and spray tube 8 is close to gather dust
One end of entrance is provided with the pure water spray head 9 for carrying out spray pure water to the eddy flow flue gas for entering the entrance that gathers dust.
The two of the feature of apparatus of the present invention are: so that flue gas is formed high-speed rotating Whirl deposite tank using swirl-flow devices 7, avoid
Ammonium hydroxide and flue gas are attached to the surface scale of smoke exhaust pipe 10 after combining, influence subsequent spray efficiency.It is specific:
The exhanst gas outlet of hot-blast stove 2 is additionally provided with the direct current flue gas for will generate in hot-blast stove 2 and forms eddy flow flue gas
Swirl-flow devices 7, furnace roof ammonia water spray gun 6 are used for the eddy flow center of rotational flow and spray flue gas.Since eddy flow makes flue gas be in high speed rotation
State, it is difficult to smoke exhaust pipe 10 tube wall adhere to.
In order to make it easy to understand, specifically introducing the make of swirl-flow devices 7:
Swirl-flow devices 7 include smoke guiding tube 701, spray cylinder 703 and smoke guide pipe 704.
Smoke guiding tube 701 be located at hot-blast stove 2 discharge direct current flue gas entrance, endcapped, prevent direct current flue gas from from
The end of smoke guiding tube 701, then flowed into following spray cylinders 703 from the inside of smoke guiding tube 701.
Spray cylinder 703 is mounted on the internal axis position of smoke guiding tube 701 by bearing 702, and can be along the axis of smoke guiding tube 701
The heart is rotated for generating eddy flow flue gas, and the head end face furnace roof ammonia water spray gun 6 of spray cylinder 703, end is connect with smoke exhaust pipe 10.Spray
Leaching cylinder 703 is rotated with certain speed.Preferably, the velocity of rotation of spray cylinder 703 is 90~120r/min.Spray cylinder 703 it is straight
Diameter is the 2/3~3/4 of 701 diameter of smoke guiding tube.To form the eddy flow flue gas of certain spin in spray cylinder 703.
Smoke guide pipe 704 surround and runs through the inner tube wall of spray cylinder 703, and the end of smoke guide pipe 704 extends to spray cylinder 703
Inside.When spray cylinder 703 rotates, the smoke guide pipe 704 being arranged on spray cylinder 703 is also rotated with it.In smoke guiding tube 701
Direct current flue gas is entered in the spray cylinder 703 rotated by smoke guide pipe 704 becomes eddy flow flue gas, and the particulate matter in flue gas exists
To the center convergence of spray cylinder 703 under the action of centrifugal force, receive the spray of furnace roof ammonia water spray gun 6, not only spray it is high-efficient, and
And due to the effect of eddy flow, it is difficult to be attached to the inner surface of spray cylinder 703, the effect of this eddy flow flue gas in conjunction with the particulate matter of ammonium hydroxide
Fruit will be continued until the inside of smoke exhaust pipe 10, reduces the crystallization attachment of 10 tube wall of smoke exhaust pipe, improves subsequent efficiency of dust collection, also subtract
Cleaning of the later period to 10 tube wall of smoke exhaust pipe is lacked.
Preferably, smoke guide pipe 704 perpendicular to spray cylinder 703 inner wall direction, it is uniform and inclined in spray cylinder 703
Wall surface distribution, and the angle between the outside wall surface of the opposite spray cylinder 703 of smoke guide pipe 704 leads cigarette less than 90 degree to promote to enter
Flue gas in pipe 704 generates the effect of spin.
In the present embodiment, the configuration of weak ammonia and the conveying of weak ammonia and pure water are realized by various pumps
, it is specific:
The first aqua ammonia pump 11 is provided on pipeline between ammonium hydroxide case 1 and dilution tank 4；Between pure water tank 5 and dilution tank 4
The first pure water pump 12 is provided on pipeline；Weak ammonia in dilution tank 4 is transported to the spray of furnace roof ammonium hydroxide by the second aqua ammonia pump 14
At rifle 6；Second of the entrance that gathers dust for the pure water in pure water tank 5 to be delivered to electrostatic dust collector 3 is provided on spray tube 8
Pure water pump 13.By controlling the feed power of each pump, the feed flow velocity of ammonium hydroxide and pure water can control.
Embodiment three:
It as shown in Figures 2 and 3, is 20% ammonium hydroxide to 5% using pure water diluted concentration using the device in embodiment two
Low concentration ammonium hydroxide.Increase dilution after 5% ammonium hydroxide of low concentration furnace roof ammonia water spray gun 6 flow by 150L/H increase to 400L/h with
On, and then improve discharged gas fume humidity.Meanwhile the pure water spray head 9 of spray tube 8 with 300L/h flow into eddy flow flue gas processed
Pure water is sprayed, smoke moisture processed is further increased.
Situation after transformation: the transformation by increasing smoke moisture, fluidized bed furnace outlet fly ash grain concentration floating range exist
20mg/Nm3~30mg/Nm3 realizes outlet particulate matter index meet the requirement of environmental protection well below discharge standard 50mg/Nm3
Numerical value.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.
Claims (10)
1. a kind of fluidized bed furnace outlet particle substance treating method, it is characterised in that: the following steps are included:
S100, ammonium hydroxide configuration: the ammonium hydroxide that concentration is 20% is diluted to the weak ammonia that concentration is 5% with pure water；
S200, increase smoke moisture: spraying the cigarette sprayed in hot-blast stove fume air outlet using configured 5% weak ammonia
Gas meter face reduces the specific resistance value of dust in flue gas；
S300, increase flue gas breakdown voltage: the flue gas after above-mentioned weak ammonia spray is before entering electrostatic dust collector
It is sprayed using pure water and improves flue gas breakdown voltage；
S400, electrostatic precipitation: electrostatic precipitation is carried out to the flue gas after pure water sprays using electrostatic dust collector.
2. a kind of fluidized bed furnace outlet particle substance treating method according to claim 1, it is characterised in that: in s 200, institute
The spray rate for stating weak ammonia is greater than 400L/h.
3. a kind of fluidized bed furnace outlet particle substance treating method according to claim 1, it is characterised in that: pure in S300
Water is 280~300L/h to the spray rate of flue gas.
4. a kind of fluidized bed furnace outlet particle substance treating method according to claim 1, it is characterised in that: in s 200, institute
It states flue gas and is diluted ammonia spray from the center of eddy flow in the form of eddy flow.
5. a kind of fluidized bed furnace outlet particulate matter processing system, including sequentially connected ammonium hydroxide case (1), hot-blast stove (2) and electrostatic are received
The smoke outlet of dirt device (3), the hot-blast stove (2) is provided with furnace roof ammonia water spray gun (6), the hot-blast stove (2) and electrostatic
It is connected between dust arrester installation (3) by smoke exhaust pipe (10)；It is characterized by:
Dilution tank (4) are provided between ammonium hydroxide case (1) and hot-blast stove (2), and the dilution tank (4) is connected with pure water tank
(5), the pure water in the high concentration ammonium hydroxide and pure water tank (5) in the ammonium hydroxide case (1) is delivered to dilution tank through respective aqueduct
(4) low concentration ammonium hydroxide is diluted in；The exhanst gas outlet of the hot-blast stove (2) is additionally provided with for will generate in hot-blast stove (2)
Direct current flue gas forms the swirl-flow devices (7) of eddy flow flue gas, and furnace roof ammonia water spray gun (6) is used to spray in the eddy flow of the eddy flow flue gas
The heart；Gathering dust for the electrostatic dust collector (3) is connect between entrance and pure water tank (5) by spray tube (8), the spray tube
(8) the pure water spray head for carrying out spray pure water to the eddy flow flue gas for entering the entrance that gathers dust is provided with close to the one end for the entrance that gathers dust
(9)。
6. a kind of fluidized bed furnace outlet particulate matter processing system according to claim 5, it is characterised in that: the swirl-flow devices
(7) include:
Smoke guiding tube (701) is located at the entrance of the direct current flue gas of the hot-blast stove (2) discharge, endcapped；
Spray cylinder (703) is mounted on the internal axis position of smoke guiding tube (701) by bearing (702), and can be along smoke guiding tube
(701) axis rotation is for generating eddy flow flue gas, furnace roof ammonia water spray gun (6), end described in the head end face of spray cylinder (703)
It is connect with smoke exhaust pipe (10)；
Smoke guide pipe (704) surround and runs through the inner tube wall of the spray cylinder (703), and the end of the smoke guide pipe (704) extends to
The inside of spray cylinder (703).
7. a kind of fluidized bed furnace outlet particulate matter processing system according to claim 6, it is characterised in that: the smoke guide pipe
(704) uniform and inclined around spray cylinder (703) inner wall EDS maps perpendicular to the inner wall direction of the spray cylinder (703), and
And the angle between the outside wall surface of the relatively described spray cylinder (703) of the smoke guide pipe (704) is less than 90 degree.
8. a kind of fluidized bed furnace outlet particulate matter processing system according to claim 5, it is characterised in that: the ammonium hydroxide case
(1) the first aqua ammonia pump (11) are provided on the pipeline between dilution tank (4)；Between the pure water tank (5) and dilution tank (4)
The first pure water pump (12) are provided on pipeline；Weak ammonia in the dilution tank (4) is transported to by the second aqua ammonia pump (14)
At furnace roof ammonia water spray gun (6)；It is provided on the spray tube (8) for the pure water in pure water tank (5) to be delivered to electrostatic dust collection
The second pure water pump (13) of the entrance that gathers dust of device (3).
9. a kind of fluidized bed furnace outlet particulate matter processing system according to claim 6, it is characterised in that: the spray cylinder
(703) diameter is the 2/3~3/4 of smoke guiding tube (701) diameter.
10. a kind of fluidized bed furnace outlet particulate matter processing system according to claim 6, it is characterised in that: the spray cylinder
(703) velocity of rotation is 90~120r/min.
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| CN206996183U (en) * | 2017-07-28 | 2018-02-13 | 上海蓝科石化环保科技股份有限公司 | High efficiency low pressure drop spraying and dust-removing system |
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Application publication date: 20191126 |