CN108815964A - A kind of boiler smoke dust separation separator, dust separation system, system for desulfuration and denitration and method - Google Patents
A kind of boiler smoke dust separation separator, dust separation system, system for desulfuration and denitration and method Download PDFInfo
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- CN108815964A CN108815964A CN201810668991.9A CN201810668991A CN108815964A CN 108815964 A CN108815964 A CN 108815964A CN 201810668991 A CN201810668991 A CN 201810668991A CN 108815964 A CN108815964 A CN 108815964A
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- Prior art keywords
- separator
- controlling valve
- self controlling
- air flue
- separation
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- 238000000926 separation method Methods 0.000 title claims abstract description 97
- 239000000428 dust Substances 0.000 title claims abstract description 72
- 239000000779 smoke Substances 0.000 title claims abstract description 63
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 42
- 239000002184 metal Substances 0.000 claims abstract description 47
- 229910052751 metal Inorganic materials 0.000 claims abstract description 47
- 238000004140 cleaning Methods 0.000 claims abstract description 26
- 239000007789 gas Substances 0.000 claims description 60
- 230000001702 transmitter Effects 0.000 claims description 35
- 239000002245 particle Substances 0.000 claims description 27
- 239000007787 solid Substances 0.000 claims description 27
- 230000003009 desulfurizing Effects 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 238000007747 plating Methods 0.000 claims description 7
- 239000002356 single layer Substances 0.000 claims description 6
- 239000005864 Sulphur Substances 0.000 claims description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 5
- 239000003546 flue gas Substances 0.000 claims description 5
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 5
- 239000010931 gold Substances 0.000 claims description 5
- 229910052737 gold Inorganic materials 0.000 claims description 5
- 230000002045 lasting Effects 0.000 claims description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 5
- FGIUAXJPYTZDNR-UHFFFAOYSA-N Potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000005755 formation reaction Methods 0.000 claims 1
- 238000000746 purification Methods 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 8
- 230000008929 regeneration Effects 0.000 abstract description 2
- 238000011069 regeneration method Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 2
- 238000000197 pyrolysis Methods 0.000 description 2
- 206010022000 Influenza Diseases 0.000 description 1
- 210000000952 Spleen Anatomy 0.000 description 1
- 230000000903 blocking Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- TWXTWZIUMCFMSG-UHFFFAOYSA-N nitride(3-) Chemical compound [N-3] TWXTWZIUMCFMSG-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 230000017260 vegetative to reproductive phase transition of meristem Effects 0.000 description 1
Classifications
-
- 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
- B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
-
- 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
-
- 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
Abstract
The present invention discloses a kind of boiler smoke dust separation separator, dust separation system, system for desulfuration and denitration and method, and present invention dust separation suitable for boiler smoke purifies.The method of the present invention adjusts Self controlling valve unlatching and closure to realize the switching of pipeline, to complete separation dedusting and the blowback purification function of separator by program.Separator includes air flue, metal corrugated plate and metallic sieve.Method of the present invention separates dust and removes dust and gas, and using gas " regeneration " device clean after purification, without additional energy and substance, it is energy-efficient, the not only technical problem that effective solution molecule is separated with gas difficulty, and process automatically controls, securely and reliably.
Description
Technical field
The invention belongs to environmental technology fields, and in particular to a kind of boiler smoke dust separation separator, dust separation
System, system for desulfuration and denitration and method.
Background technique
Contain a large amount of dust, sulfide, nitride in boiler smoke, discharge, which purifies flue gas not up to standard, will cause atmosphere
One of the main reason for polluting, and causing haze in recent years.Existing boiler flue gas purification technique mainly includes dedusting and desulfurization
Denitration, and common dedusting technology has cyclone dust removal and bag-type dust.
Cyclone separator is widely used a kind of deduster, simple, the cheap, operation and maintenance with structure
Convenience, the gas that high temperature, big granularity, high granule density can be handled, but presence is bad to small size particle treatment effect, after purification
The deficiencies of gas temperature is higher.Bag filter is using more dedusting method in current flue gas ash removal, although having structure
It is simple and convenient to operate, the advantages such as use cost is low, but with the extension of use time, flue dust is easy blocking cloth bag, causes system
Pressure increases, and improves wind speed of dust removal, increases energy loss, reduces efficiency of dust collection, and repairs more difficult.
Summary of the invention
To solve problems of the prior art.The purpose of the present invention is to provide a kind of boiler smoke dust separations point
From device, dust separation system, system for desulfuration and denitration and method, present invention dust suitable for boiler smoke dust separation is net
Change, the method for the present invention adjusts Self controlling valve unlatching by program and is closed the switching to realize pipeline, with the separation of finishing device
Dedusting and blowback purification function.
The technical solution adopted by the present invention enters as follows：
A kind of boiler smoke dust separation separator, including the first air flue, the second air flue, two side plates and several gold
Belong to corrugated plating；
Face setting before and after two side plates, from the left side of two side plates to the right, several metal corrugated plates are parallel to each other
And be arranged at intervals between two side plates, the front-rear side walls of all metal corrugated plates are fixedly connected with two side plates respectively, from two
Waveform channel is formed between two adjacent metal corrugated plates at the lower part of a side plate to top；
Metallic sieve is provided between two adjacent metal corrugated plates；
First air flue and the second air flue are connect with the upper and lower part of two side plates respectively, the first air flue and metal corrugated plate
Between formed waveform channel upper end connection, the lower end in the waveform channel formed between the second air flue and metal corrugated plate
Connection.
Metallic sieve includes the metallic sieve of several segments single layer, and two adjacent gold are arranged in metallic sieve entirety fold-line-shaped
Belong between corrugated plating, is welded between the both ends that each section of metallic sieve and metal corrugated plate.
The height of the top in the waveform channel formed between two neighboring metal corrugated plate to lower part, metallic sieve is
The 1/3 of waveform channel height.
The distance between two neighboring metal corrugated plate is not more than 3mm, and metallic sieve is 200 meshes.
A kind of boiler smoke dust separation separation system, including a cyclone separator, secondary cyclone separator, several
Separator described in Self controlling valve, several pressure transmitters and two；Two separators are respectively the first separator
With the second separator；First separator and the second separator can be connect with boiler desulfurization denitrating system；
The outlet of cyclone separator connects with first the second air flue of separator and second the second air flue of separator
It connects；
The outlet of secondary cyclone separator connects with first the second air flue of separator and second the second air flue of separator
It connects；
First the second air flue of separator and second the second air flue of separator connect with the entrance of secondary cyclone separator
It connects；
First the first air flue of separator and second the first air flue of separator can be with the entrances of system for desulfuration and denitration
Connection；
First the first air flue of separator and second the first air flue of separator can be with the outlets of system for desulfuration and denitration
Connection；
Second air flue of the first separator and the second air flue of the second separator are respectively arranged with first pressure pick-up
Device and second pressure transmitter；
On pipeline between first the first air flue of separator and the outlet of system for desulfuration and denitration and and system for desulfuration and denitration
Entrance between pipeline on the first Self controlling valve and the second Self controlling valve is respectively set；
First the second air flue of separator is provided with third Self controlling valve and the 4th Self controlling valve parallel with one another, and third is certainly
Control valve is arranged on the pipeline between first the second air flue of separator and secondary cyclone separator inlet；4th Self controlling valve
It is separately connected by pipeline and the outlet of secondary cyclone separator and the outlet of a cyclone separator；
On pipeline between second the first air flue of separator and the entrance of system for desulfuration and denitration and and system for desulfuration and denitration
Outlet between pipeline on the 5th Self controlling valve and the 6th Self controlling valve 10-6 is respectively set；
Second the second air flue of separator is provided with the 7th Self controlling valve and the 8th Self controlling valve parallel with one another, and the 7th certainly
Control valve is arranged on the pipeline between second the second air flue of separator and secondary cyclone separator inlet；8th Self controlling valve
It is separately connected by pipeline and the outlet of secondary cyclone separator and the outlet of a cyclone separator；
First Self controlling valve, third Self controlling valve, the 5th Self controlling valve and the 8th Self controlling valve with first pressure pick-up
Device connection；
Second Self controlling valve, the 4th Self controlling valve, the 6th Self controlling valve and the 7th Self controlling valve with second pressure pick-up
Device connection.
A kind of boiler desulfurization denitrating system, boiler desulfurization denitrating system are provided with the separation system.
A kind of boiler smoke dust-removing and purifying method, based on the boiler smoke dust separation separation system, including it is as follows
Step：
Step 1, the 8th Self controlling valve and the 5th Self controlling valve are opened, remaining Self controlling valve is turned off, by boiler smoke
It is passed through a cyclone separator and is dusted separation；The boiler smoke after a cyclone separator separates is separated from second again
The second air flue of device is passed through the second separator and is dusted separation, and when dedusting separates, the solid particle in boiler smoke is golden
Belong to the screen to filtrate, it is de- in desulfurization except dust and gas escapes and enter from second the first air flue of separator 1 entrance of system for desulfuration and denitration
In nitre system, except in dust and gas nitrogen and element sulphur be removed, obtain clean gas, clean gas is arranged from the outlet of system for desulfuration and denitration
Out；
Step 2, when the pressure of second pressure transmitters sense to second the second air flue of separator exceeds preset range value
When, the 8th Self controlling valve and the 5th Self controlling valve receive the detection signal of second pressure transmitter, and close the 8th Self controlling valve
With the 5th Self controlling valve, meanwhile, the 4th Self controlling valve and the second Self controlling valve are opened, the boiler after a cyclone separator separation
Flue gas is dusted separation by the first separator；Then the 6th Self controlling valve and the 7th Self controlling valve are opened, desulphurization denitration
The cleaning gas of the outlet discharge of system enters the second separator from second the first air flue of separator, to the second separator gold
The solid particle belonged on sieve carries out blowback, is detached from solid particle from metallic sieve, then again from the second separator the
Two air flues enter secondary cyclone separator, and secondary cyclone separator separates the ash-laden gas for carrying blowback solid particle,
Through secondary cyclone separator separation after gas again with after the gas mixing of a Cyclone outlet through the 4th Self controlling valve
It is dusted separation into the first separator, when second pressure transmitters sense to the pressure of second the second air flue of separator
When reaching preset range value, the 6th Self controlling valve and the 7th Self controlling valve are closed；
Step 3, when the pressure of first pressure transmitters sense to first the second air flue of separator exceeds preset range value
When, the 4th Self controlling valve and the second Self controlling valve receive the detection signal of first pressure transmitter, and close the 4th Self controlling valve
With the second Self controlling valve, meanwhile, the 8th Self controlling valve and the 5th Self controlling valve are opened, a cyclone separator and secondary cyclone point
Separation is dusted by the second separator from the mixed gas after device separation；Then the first Self controlling valve and third internally piloted valve
Door is opened, and the cleaning gas of the outlet discharge of system for desulfuration and denitration enters the first separator from first the first air flue of separator,
Blowback is carried out to the solid particle on the first separator metallic sieve, is detached from solid particle from metallic sieve, then again
Enter secondary cyclone separator from first the second air flue of separator, secondary cyclone separator is to carrying blowback solid particle
Ash-laden gas is separated, the clean gas gas mixing with a Cyclone outlet again after the separation of secondary cyclone separator
Enter the second separator by third Self controlling valve and be dusted separation, when first pressure transmitters sense to the first separation dress
When setting the pressure of the second air flue and reaching preset range value, the first Self controlling valve and third Self controlling valve are closed；
Step 4, step 2 is repeated to step 3, realizes the lasting separation to dust in boiler smoke.
The present invention has the advantages that：
Boiler smoke dust separation separator of the invention passes through the sieve being arranged in metal corrugated plate and corrugated plating
Little particle dust in separating flue, the dust isolated can be stopped to filter down by metallic sieve, except dust and gas passes through wave
Whole device is discharged behind shape channel, and enters next procedure, dust-removing and purifying method of the invention is able to solve powder in the prior art
Dirt is difficult to the problem being kept completely separate, and has separating effect outstanding feature.
Boiler smoke dust separation system of the invention is of the invention by several Self controlling valves, pressure transmitter and two
Separator, by the opening and closing of Self controlling valve, can when the first separator is dusted separation, to the second separator into
Row blowback purification；When the second separator is dusted separation, blowback purification is carried out to the first separator；The process is complete
It automatically controls, in production process, it is not necessary to stop production, therefore can be realized the continuous of dust in boiler smoke and separated, greatly improve
Production efficiency saves time and economic cost, moreover it is possible to achieve energy-saving and emission reduction purposes, economic effect and obvious environment benefit.
Boiler desulfurization denitrating system of the invention is due to being provided with boiler smoke dust separation system of the invention, energy
Enough lasting dust separations realized during desulphurization denitration to boiler smoke, improve efficiency, have saved cost.
Boiler smoke dust-removing and purifying method of the invention by the effect of above-mentioned boiler smoke dust separation separation system it is found that
Boiler smoke dust-removing and purifying method of the invention can be realized the continuous separation to dust in boiler smoke, improve production effect
Rate can create higher economic benefit, have good environmental benefit.
Detailed description of the invention
Fig. 1 is boiler smoke dust separation system schematic diagram of the invention；
Fig. 2 is boiler smoke dedusting and purifying device schematic diagram of the present invention；
Fig. 3 is boiler smoke dedusting and purifying device block schematic illustration of the present invention；
Fig. 4 be separator of the present invention to boiler smoke dust separation when schematic diagram；
Fig. 5 is separator blowback purification schematic diagram of the present invention；
Fig. 6 is another separator schematic diagram of the invention；
Fig. 7 is the plate frame structure schematic diagram in another separator of the invention；
Fig. 8 is the metallic sieve group structural schematic diagram in another separator of the invention；
Fig. 9 is the structural schematic diagram after all metallic sieves combination in another separator of the invention；
Figure 10 is the structural schematic diagram of the Combined sieve board in another separator of the invention；
Figure 11 is separator of the invention another as operation schematic diagram when separating dirt pocket；
Figure 12 be separator of the invention another as blowback clean room when operation schematic diagram.
In figure, the first air flue of 1-, the second air flue of 1-1-, 2- metal corrugated plate, 4- metallic sieve, 5- side plate, 6- desulfurization is de-
The outlet of nitre system；The entrance of 7- system for desulfuration and denitration, cyclone separator of 8-, 9- secondary cyclone separator, 10-1- first
Self controlling valve, the second Self controlling valve of 10-2-, 10-3- third Self controlling valve, the 4th Self controlling valve of 10-4-, the 5th automatic control of 10-5-
Valve, the 6th Self controlling valve of 10-6-, the 7th Self controlling valve of 10-7-, the 8th Self controlling valve of 10-8-, 11-1- first pressure pick-up
Device, 11-2- second pressure transmitter, the first separator of 12-, the second separator of 13-, 14- drier；101- first is passed in and out
Air flue, 101-1- second pass in and out air flue, 102- metal sheet frame, the metallic sieve of 103- different meshes, 104- Combined sieve board.
Specific embodiment
Below in conjunction with drawings and examples, a specific embodiment of the invention is described in more details, so as to energy
The advantages of enough more fully understanding the solution of the present invention and its various aspects.
Referring to Fig. 2 to Fig. 5, boiler smoke dust separation separator of the invention, including the first air flue 1, the second air flue
1-1, two side plates 5 and several metal corrugated plates 2；
Two 5 front and back face of side plate settings, from the left side of two side plates 5 to the right, several metal corrugated plates 2 are mutually flat
It goes and is arranged at intervals between two side plates 5, the front-rear side walls of all metal corrugated plates 2 are fixedly connected with two side plates 5 respectively,
From the lower part of two side plates 5 to top, waveform channel is formed between two adjacent metal corrugated plates 2；
Metallic sieve 4 is provided between two adjacent metal corrugated plates 2；
First air flue 1 and the second air flue 1-1 are connect with the upper and lower part of two side plates 5 respectively, the first air flue 1 and metal
The upper end in the waveform channel formed between corrugated plating 2 is connected to, the wave formed between the second air flue 1-1 and metal corrugated plate 2
The lower end in shape channel is connected to.
Referring to Fig. 4 and Fig. 5, metallic sieve 4 includes the metallic sieve of several segments single layer, and the whole fold-line-shaped of metallic sieve 4 is set
It sets between two adjacent metal corrugated plates 2, is welded between the both ends that 4 each sections of metallic sieve and metal corrugated plate 2.
Preferably, top to the lower part in the waveform channel formed between two neighboring metal corrugated plate 2, metallic sieve
4 height is the 1/3 of waveform channel height.The distance between two neighboring metal corrugated plate 2 is not more than 3mm, metallic sieve 4
For 200 meshes.
As shown in Figure 1, in conjunction with Fig. 2, boiler smoke dust separation separation system of the invention, including a cyclone separator
8, separator described in secondary cyclone separator 9, several Self controlling valves, several pressure transmitters and two；Two points
It is respectively the first separator 12 and the second separator 13 from device；First separator 12 and the equal energy of the second separator 13
It is enough to be connect with boiler desulfurization denitrating system；
The outlet of cyclone separator 8 and 12 second air flue 1-1 of the first separator and the second separator 13 second
Air flue 1-1 is all connected with；
The outlet of secondary cyclone separator 9 and 12 second air flue 1-1 of the first separator and the second separator 13 second
Air flue 1-1 is all connected with；
First separator, 12 second air flue 1-1 and 13 second air flue 1-1 of the second separator are separated with secondary cyclone
The entrance of device 9 connects；
First separator, 12 first air flue 1 and 13 first air flue 1 of the second separator enter with system for desulfuration and denitration
Mouth 7 connects；
First separator, 12 first air flue 1 and 13 first air flue 1 of the second separator go out with system for desulfuration and denitration
Mouth 6 connects；
Second air flue 1-1 of the first separator 12 and the second air flue 1-1 of the second separator 13 is respectively arranged with
One pressure transmitter 11-1 and second pressure transmitter 11-2；
On pipeline between first separator, 12 first air flue 1 and the outlet 6 of system for desulfuration and denitration and and desulphurization denitration
The first Self controlling valve 10-1 and the second Self controlling valve 10-2 are respectively set on pipeline between the entrance 7 of system；
First separator, 12 second air flue 1-1 is provided with third Self controlling valve 10-3 and the 4th internally piloted valve parallel with one another
Door 10-4, third Self controlling valve 10-3 setting 12 second air flue 1-1 of the first separator and 9 entrance of secondary cyclone separator it
Between pipeline on；4th Self controlling valve 10-4 passes through the outlet of pipeline and secondary cyclone separator 9 and cyclone separator 8
Outlet is separately connected；
On pipeline between second separator, 13 first air flue 1 and the entrance 7 of system for desulfuration and denitration and and desulphurization denitration
The 5th Self controlling valve 10-5 and the 6th Self controlling valve 10-6 is respectively set on pipeline between the outlet 6 of system；
Second separator, 13 second air flue 1-1 is provided with the 7th Self controlling valve 10-7 and the 8th internally piloted valve parallel with one another
Door 10-8, the 7th Self controlling valve 10-7 setting 13 second air flue 1-1 of the second separator and 9 entrance of secondary cyclone separator it
Between pipeline on；8th Self controlling valve 10-8 passes through the outlet of pipeline and secondary cyclone separator 9 and cyclone separator 8
Outlet is separately connected；
First Self controlling valve 10-1, third Self controlling valve 10-3, the 5th Self controlling valve 10-5 and the 8th Self controlling valve 10-8
It is connect with first pressure transmitter 11-1；
Second Self controlling valve 10-2, the 4th Self controlling valve 10-4, the 6th Self controlling valve 10-6 and the 7th Self controlling valve 10-7
It is connect with second pressure transmitter 11-2.
As shown in Figure 1, in conjunction with Fig. 2~Fig. 5, boiler smoke dust-removing and purifying method of the invention passes through above-mentioned purification system
It carries out, process is as follows：
Step 1, the 8th Self controlling valve 10-8 and the 5th Self controlling valve 10-5 is opened, remaining Self controlling valve is turned off, will
Boiler smoke is passed through a cyclone separator 8 and is dusted separation；Again by the boiler smoke after a cyclone separator 8 separates
The second separator 13, which is passed through, from 13 second air flue 1-1 of the second separator is dusted separation, when dedusting separates, boiler smoke
In solid particle filtered by metallic sieve 4, except dust and gas escapes and enter desulphurization denitration from 13 first air flue 1 of the second separator
The entrance 7 of system, in system for desulfuration and denitration, except in dust and gas nitrogen and element sulphur be removed, obtain clean gas, clean gas is from de-
The outlet 6 of sulphur denitrating system is discharged；
Step 2, when second pressure transmitter 11-2 detects the pressure of 13 second air flue 1-1 of the second separator beyond pre-
If when value range, the detection letter of the 8th Self controlling valve 10-8 and the 5th Self controlling valve 10-5 reception second pressure transmitter 11-2
Number, and the 8th Self controlling valve 10-8 and the 5th Self controlling valve 10-5 is closed, meanwhile, the 4th Self controlling valve 10-4 and the second internally piloted valve
Door 10-5 is opened, and the boiler smoke after a separation of cyclone separator 8 is dusted separation by the first separator 12；Then
6th Self controlling valve 10-6 and the 7th Self controlling valve 10-7 are opened, and the cleaning gas that the outlet 6 of system for desulfuration and denitration is discharged is from second
13 first air flue of separator enter the second separator 13, to the solid particle on 13 metallic sieve 4 of the second separator into
Row blowback is detached from solid particle from metallic sieve 4, then enters again from 13 second air flue 1-1 of the second separator secondary
Cyclone separator 9, secondary cyclone separator 9 separate the ash-laden gas for carrying blowback solid particle, through secondary cyclone point
Gas after separating from device 9 enters the through the 4th Self controlling valve 10-4 with after the gas mixing of a cyclone separator 8 outlet again
One separator 12 is dusted separation, when second pressure transmitter 11-2 detects 13 second air flue 1-1 of the second separator
Pressure when reaching preset range value, the 6th Self controlling valve 10-6 and the 7th Self controlling valve 10-7 are closed；
Step 3, when first pressure transmitter 11-1 detects the pressure of 12 second air flue 1-1 of the first separator beyond pre-
If when value range, the detection letter of the 4th Self controlling valve 10-4 and the second Self controlling valve 10-2 reception first pressure transmitter 11-1
Number, and the 4th Self controlling valve 10-4 and the second Self controlling valve 10-2 is closed, meanwhile, the 8th Self controlling valve 10-8 and the 5th internally piloted valve
Door 10-5 is opened, and the mixed gas after a cyclone separator 8 and the separation of secondary cyclone separator 9 passes through the second separator 13
It is dusted separation；Then the first Self controlling valve 10-1 and third Self controlling valve 10-3 is opened, 6 row of outlet of system for desulfuration and denitration
Cleaning gas out enters the first separator 12 from 1 first air flue 1 of the first separator, to 1 metallic sieve 4 of the first separator
On solid particle carry out blowback, be detached from solid particle from metallic sieve 4, then again from 12 second gas of the first separator
Road 1-1 enters secondary cyclone separator 9, and secondary cyclone separator 9 separates the ash-laden gas for carrying blowback solid particle,
Through third automatic control after the gas mixing that clean gas after the separation of secondary cyclone separator 9 is exported with a cyclone separator 8 again
Valve 10-3 enters the second separator 13 and is dusted separation, when first pressure transmitter 11-1 detects the first separator
When the pressure of 12 second air flue 1-1 reaches preset range value, the first Self controlling valve 10-1 and third Self controlling valve 10-3 are closed；
Step 4, step 2 is repeated to step 3, realizes the lasting separation to dust in boiler smoke.
When the present invention is to boiler smoke dust separation：
Opening a group Self controlling valve, (a group Self controlling valve includes the first Self controlling valve 10-1, third Self controlling valve 10-3, the 5th
Self controlling valve 10-5 and the 8th Self controlling valve 10-8) when, closing b group Self controlling valve, (b group Self controlling valve includes the second Self controlling valve
10-2, the 4th Self controlling valve 10-4, the 6th Self controlling valve 10-6 and the 7th Self controlling valve 10-7)；
At this point, being threaded through second from the boiler smoke for being mingled with a small amount of dust that a separation of cyclone separator 8 is completed
Separator 13 carries out separation dedusting, and the second separator 13 is as separation dirt pocket, when separating dedusting, metal corrugated plate at this time
2 and metallic sieve 4 after make dust with except dust and gas separates, except dust and gas pass through separation dirt pocket, go to desulphurization denitration workshop section, pass through desulfurization
Denitrating system removes sulphur, nitrogen, obtains clean gas；
A part of clean gas after desulphurization denitration can be from the first separator 12 by the first Self controlling valve 10-1 of control
The first air flue 1 enter the first separator 12, at this time the first separator 12 as blowback purify dirt room, the clean gas being passed through
Blowback purification can be carried out to the first separator 12, when blowback purifies, this part cleaning gas can will be stuck in corrugated plating gap
Fall with the dust blowback for being gathered in air flue, is then discharged from the second air flue 1-1 of the first separator 12, then removes secondary cyclone
Separator；
The pyrolysis gas for being mingled with micro dust after the separation of secondary cyclone separator returns to the second separator 13；Second
The second pressure transmitter 11-2 and coupled Self controlling valve being arranged in separator 13 are chain, when second pressure transmitter
When 11-2 detects that pressure is excessive, second pressure transmitter 11-2 controls Self controlling valve connected to it and opens and be closed, separation
Dirt pocket and blowback clean room exchange function, i.e., when the second separator 13 is as separation dirt pocket, the first separator 12
Dirt room is purified as blowback；When the first separator 12 is as dust separation room, the second separator 13 is purified as blowback
Dirt room, moves in circles according to this, can be realized the lasting separation to boiler smoke dust separation.
It opens in a group Self controlling valve and b group Self controlling valve, wherein another group is in closed state when one group of unlatching.Work as dress
Set interior pressure it is excessive when, change Self controlling valve group open and closed state, carry out blowback purification.
Boiler smoke dust separation separator of the invention also can be used such as flowering structure：
As shown in fig. 6, separator includes that the first disengaging air flue 101, second passes in and out air flue 101-1 and several combination sieves
Plate 102, each Combined sieve board 102 have entrance and exit；
Referring to Fig. 7~Figure 10, Combined sieve board 104 includes metallic sieve 103 and metal sheet frame 102, and metal sheet frame 102 is tool
There is the frame structure of entrance, outlet and side wall, the entrance of all metal sheet frames 102 is connected to the first disengaging air flue 101, Suo Youjin
The outlet for belonging to sheet frame 102 is connected to the second disengaging air flue 101-1 (see Fig. 6), and metallic sieve 103 is arranged multiple and is arranged in metal
(see Figure 10) in sheet frame 102, welded between metallic sieve 103 and metal sheet frame 102；Entrance along metal sheet frame 102 extremely exports
The mesh number in direction, metallic sieve 103 is incremented by (see Fig. 9)；
As shown in Figure 8 and Figure 9, all metallic sieves are divided into several metallic sieve groups, in each metallic sieve group, gold
The mesh number for belonging to sieve is identical；Each metallic sieve group includes the metallic sieve of three pieces single layer, and the metallic sieve of three pieces single layer is Z-shape
Structure setting (see Fig. 8)；The metallic sieve of each single layer and the axis in 102 entrance direction of metal sheet frame are non-90 degree angle
(see Figure 10 to Figure 12).
As shown in Figure 9, it is preferred that along one end of metal sheet frame 102 to the other end, the mesh number of metallic sieve 103 is followed successively by
120 mesh, 140 mesh, 170 mesh and 200 mesh are incremented by setting.
The solid particle in boiler smoke can be separated using solid gas separator.Boiler smoke dedusting through the invention
The process that purification separation device separates boiler smoke is following (referring to Fig. 5~Figure 11)：
Boiler smoke is passed through to the inner cavity of metal sheet frame 102 from the first disengaging air flue 101, boiler smoke passes through Combined sieve board
When 104, solid particle is filtered by metallic sieve 103, except dust and gas goes to desulphurization denitration workshop section by metallic sieve, and from Combined sieve board
102 outlet second passes in and out air flue 101-1 discharge；
When the pressure drop for passing in and out air flue 101-1 from the first disengaging air flue 101 to the second increases, stopping is passed through boiler smoke,
It is passed through purification gas from the second disengaging air flue 101-1 to the inner cavity of Combined sieve board 102 again, makes the solid on metallic sieve 103
Grain is separated with metallic sieve 103, and the solid particle isolated is discharged from 102 entrance of Combined sieve board through the first disengaging air flue 101.
In the present invention, solid particle is stuck in metallic sieve in boiler smoke, except dust and gas removes desulphurization denitration by metallic sieve
Workshop section, to realize the isolation of purified function of separator.When separator passes in and out air flue from the first disengaging air flue 101 to the second
When the pressure drop of 101-1 increases, it is reversely blown into purified clean gas to separator, the solid product being stuck on sieve is blown out
Separator, so that separator be made to separate dedusting function " regeneration ".
As shown in figure 11, enter containing boiler smoke from 102 lower part of metal sheet frame (i.e. entrance), top (exports) ease
Out, this process is dedusting separation process；As shown in figure 11, blowback air is entered from 102 top of metal sheet frame (exporting), under
Portion's (i.e. entrance) evolution.
It is the structure after two separators of the invention are connected with each other referring to Fig. 6, two separators are respectively to separate
Device A and separator B, separator A and separator B are symmetrical set, when being dusted, from a whirlwind point
From the boiler smoke for being mingled with dust be dusted by separator A, separating device A as separation dirt pocket, make dust and remove
Dust and gas separation, goes to desulphurization denitration workshop section.When separator A first passes in and out the pressure drop liter that air flue 101 to the second passes in and out air flue 101-1
Gao Shi, the boiler smoke for being mingled with dust for switching a cyclonic separation is dusted by separator B, after desulphurization denitration
A part of cleaning gas is reversely passed through in separator A, realizes that the blowback to separator A purifies, separator A is blowback at this time
Clean room, in blowback purification process, clean gas blowback is stuck in separator A metal sieve plate gap and accumulates in the dust of air flue,
Dust is taken out of separator A, into secondary cyclone separator.It is mingled with micro dust after the separation of secondary cyclone separator
Pyrolysis gas and the boiler smoke mixing after a cyclonic separation it is another rise to enter separator B and be dusted separate；
When separator B first, which passes in and out air flue 101 to the second, passes in and out the pressure drop raising of air flue 101-1, switching gas circuit makes
Separator A vents one's spleen to the heat of mixing as separation dirt pocket carry out separation dedusting again, and separator B is used as blowback to purify again
Room carries out the blowback purification of itself, recycles according to this, achievees the purpose that continuously to separate dedusting.
The device of the invention, System and method for apply also for the industry of other separation dust.
The above examples are only used to illustrate the technical scheme of the present invention and are not limiting.Although referring to embodiment to the present invention into
Detailed description is gone, it will be apparent to an ordinarily skilled person in the art that under the premise without departing from the spirit and scope of the present invention
To modification or equivalent substitute that the present invention carries out, should all cover within the scope of the present invention.
Claims (7)
1. a kind of boiler smoke dust separation separator, which is characterized in that including the first air flue (1), the second air flue (1-1),
Two side plates (5) and several metal corrugated plates (2)；
Face setting before and after two side plates (5), from the left side of two side plates (5) to the right, several metal corrugated plates (2) are mutual
It is parallel and be arranged at intervals between two side plates (5), the front-rear side walls of all metal corrugated plates (2) respectively with two side plates (5)
It is fixedly connected, from the lower part of two side plates (5) to top, forms waveform channel between two adjacent metal corrugated plates (2)；
Metallic sieve (4) are provided between two adjacent metal corrugated plates (2)；
First air flue (1) and the second air flue (1-1) are connect with the upper and lower part of two side plates (5) respectively, the first air flue (1) with
The upper end in the waveform channel formed between metal corrugated plate (2) is connected to, between the second air flue (1-1) and metal corrugated plate (2)
The lower end in the waveform channel of formation is connected to.
2. a kind of boiler smoke dust separation separator according to claim 1, which is characterized in that metallic sieve (4)
Metallic sieve including several segments single layer, metallic sieve (4) entirety fold-line-shaped be arranged in two adjacent metal corrugated plates (2) it
Between, it is welded between the both ends and metal corrugated plate (2) of each section of metallic sieve (4).
3. a kind of boiler smoke dust separation separator according to claim 1, which is characterized in that along two neighboring gold
Belong to top to the lower part in the waveform channel formed between corrugated plating (2), the height of metallic sieve (4) is waveform channel height
1/3.
4. a kind of boiler smoke dust separation separator according to claim 1, which is characterized in that two neighboring metal
The distance between corrugated plating (2) is not more than 3mm, and metallic sieve (4) is 200 meshes.
5. a kind of boiler smoke dust separation separation system, which is characterized in that including cyclone separator (8), a secondary cyclone
Separation described in separator (9), several Self controlling valves, several pressure transmitters and two claim 1-4 any one
Device；Two separators are respectively the first separator (12) and the second separator (13)；First separator (12) and
Second separator (13) can be connect with boiler desulfurization denitrating system；
The outlet of cyclone separator (8) and (12) second air flue (1-1) of the first separator and the second separator (13)
Second air flue (1-1) is all connected with；
The outlet of secondary cyclone separator (9) and (12) second air flue (1-1) of the first separator and the second separator (13)
Second air flue (1-1) is all connected with；
(12) second air flue (1-1) of first separator and (13) second air flue (1-1) of the second separator are and secondary cyclone
The entrance of separator (9) connects；
(12) first air flue (1) of first separator and (13) first air flue (1) of the second separator can be with desulphurization denitrations
The entrance (7) of system connects；
(12) first air flue (1) of first separator and (13) first air flue (1) of the second separator can be with desulphurization denitrations
The outlet (6) of system connects；
The second air flue (1-1) of first separator (12) and the second air flue (1-1) of the second separator (13) are respectively set
There are first pressure transmitter (11-1) and second pressure transmitter (11-2)；
It is taken off on pipeline between (12) first air flue (1) of first separator and the outlet (6) of system for desulfuration and denitration and with desulfurization
The first Self controlling valve (10-1) and the second Self controlling valve (10-2) is respectively set on pipeline between the entrance (7) of nitre system；
(12) second air flue (1-1) of first separator is provided with third Self controlling valve (10-3) and the 4th automatic control parallel with one another
Valve (10-4), third Self controlling valve (10-3) setting is in (12) second air flue (1-1) of the first separator and secondary cyclone point
From on the pipeline between device (9) entrance；4th Self controlling valve (10-4) by the outlets of pipeline and secondary cyclone separator (9) and
The outlet of cyclone separator (8) is separately connected；
It is taken off on pipeline between (13) first air flue (1) of second separator and the entrance (7) of system for desulfuration and denitration and with desulfurization
The 5th Self controlling valve (10-5) and the 6th Self controlling valve (10-6) is respectively set on pipeline between the outlet (6) of nitre system；
(13) second air flue (1-1) of second separator is provided with the 7th Self controlling valve (10-7) and the 8th automatic control parallel with one another
Valve (10-8), the setting of the 7th Self controlling valve (10-7) is in (13) second air flue (1-1) of the second separator and secondary cyclone point
From on the pipeline between device (9) entrance；8th Self controlling valve (10-8) by the outlets of pipeline and secondary cyclone separator (9) and
The outlet of cyclone separator (8) is separately connected；
First Self controlling valve (10-1), third Self controlling valve (10-3), the 5th Self controlling valve (10-5) and the 8th Self controlling valve
(10-8) is connect with first pressure transmitter (11-1)；
Second Self controlling valve (10-2), the 4th Self controlling valve (10-4), the 6th Self controlling valve (10-6) and the 7th Self controlling valve
(10-7) is connect with second pressure transmitter (11-2).
6. a kind of boiler desulfurization denitrating system, which is characterized in that boiler desulfurization denitrating system, which is provided with described in claim 5, to be divided
From system.
7. a kind of boiler smoke dust-removing and purifying method based on the boiler smoke dust separation separation system described in claim 5,
It is characterised in that it includes following steps：
Step 1, the 8th Self controlling valve (10-8) and the 5th Self controlling valve (10-5) are opened, remaining Self controlling valve is turned off, will
Boiler smoke is passed through a cyclone separator (8) and is dusted separation；Again by the boiler after a cyclone separator (8) separates
Flue gas is passed through the second separator (13) from (13) second air flue (1-1) of the second separator and is dusted separation, dedusting separation
When, the solid particle in boiler smoke is filtered by metallic sieve (4), except dust and gas is from (13) first air flue (1) of the second separator
The entrance (7) for escaping and enter system for desulfuration and denitration, in system for desulfuration and denitration, except in dust and gas nitrogen and element sulphur be removed,
Clean gas is obtained, clean gas is discharged from the outlet (6) of system for desulfuration and denitration；
Step 2, when second pressure transmitter (11-2) detects that the pressure of (13) second air flue (1-1) of the second separator exceeds
When preset range value, the 8th Self controlling valve (10-8) and the 5th Self controlling valve (10-5) receive second pressure transmitter (11-2)
Signal is detected, and closes the 8th Self controlling valve (10-8) and the 5th Self controlling valve (10-5), meanwhile, the 4th Self controlling valve (10-4)
It is opened with the second Self controlling valve (10-5), the boiler smoke after cyclone separator (8) separation passes through the first separator
(12) it is dusted separation；Then the 6th Self controlling valve (10-6) and the 7th Self controlling valve (10-7) are opened, system for desulfuration and denitration
Outlet (6) discharge cleaning gas from (13) first air flue of the second separator enter the second separator (13), to second point
Blowback is carried out from the solid particle on device (13) metallic sieve (4), is detached from solid particle from metallic sieve (4), then
Enter secondary cyclone separator (9) from (13) second air flue (1-1) of the second separator again, secondary cyclone separator (9) is to taking
Ash-laden gas with blowback solid particle is separated, through secondary cyclone separator (9) separation after gas again with a whirlwind
Enter the first separator (12) through the 4th Self controlling valve (10-4) after the gas mixing of separator (8) outlet to be dusted point
From when second pressure transmitter (11-2) detects that the pressure of (13) second air flue (1-1) of the second separator reaches default model
When enclosing value, the 6th Self controlling valve (10-6) and the 7th Self controlling valve (10-7) are closed；
Step 3, when first pressure transmitter (11-1) detects that the pressure of (12) second air flue (1-1) of the first separator exceeds
When preset range value, the 4th Self controlling valve (10-4) and the second Self controlling valve (10-2) receive first pressure transmitter (11-1)
Signal is detected, and closes the 4th Self controlling valve (10-4) and the second Self controlling valve (10-2), meanwhile, the 8th Self controlling valve (10-8)
It is opened with the 5th Self controlling valve (10-5), the mixed gas after a cyclone separator (8) and secondary cyclone separator (9) separation
Separation is dusted by the second separator (13)；Then the first Self controlling valve (10-1) and third Self controlling valve (10-3) are beaten
It opens, the cleaning gas of outlet (6) discharge of system for desulfuration and denitration enters the first separation from (1) first air flue (1) of the first separator
Device (12) carries out blowback to the solid particle on the first separator (1) metallic sieve (4), makes solid particle from metallic screen
Net is detached from (4), then enters secondary cyclone separator (9) from (12) second air flue (1-1) of the first separator again, secondary rotation
Wind separator (9) separates the ash-laden gas for carrying blowback solid particle, clean after secondary cyclone separator (9) separation
Net gas enters the second separator through third Self controlling valve (10-3) with after the gas mixing of a cyclone separator (8) outlet again
(13) it is dusted separation, when first pressure transmitter (11-1) detects (12) second air flue (1-1) of the first separator
When pressure reaches preset range value, the first Self controlling valve (10-1) and third Self controlling valve (10-3) are closed；
Step 4, step 2 is repeated to step 3, realizes the lasting separation to dust in boiler smoke.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810668991.9A CN108815964B (en) | 2018-06-26 | 2018-06-26 | Boiler flue gas dust removal purification separation device, dust removal purification system, desulfurization and denitrification system and method |
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|---|---|---|---|
| CN201810668991.9A CN108815964B (en) | 2018-06-26 | 2018-06-26 | Boiler flue gas dust removal purification separation device, dust removal purification system, desulfurization and denitrification system and method |
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| JP2006194126A (en) * | 2005-01-12 | 2006-07-27 | Babcock Hitachi Kk | Flue gas treatment facility and method for purging flue gas |
| US20110108483A1 (en) * | 2008-04-03 | 2011-05-12 | Povl Kaas | Filter unit with filter bank |
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