CN205109234U - Small -size CFB boiler starts smokeless discharge system - Google Patents
Small -size CFB boiler starts smokeless discharge system Download PDFInfo
- Publication number
- CN205109234U CN205109234U CN201520871956.9U CN201520871956U CN205109234U CN 205109234 U CN205109234 U CN 205109234U CN 201520871956 U CN201520871956 U CN 201520871956U CN 205109234 U CN205109234 U CN 205109234U
- Authority
- CN
- China
- Prior art keywords
- boiler
- small
- bed material
- bed
- granularity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a small -size CFB boiler starts smokeless discharge system, including filter bed, a plurality of sack, the filter bed upper berth is equipped with the bed material that 400mm is thick, and the granularity of bed material is lighter than 10mm, and bed material upper berth is equipped with the fly ash that 150mm is thick, and the granularity of fly ash is lighter than 1mm, covers one deck dust layer on the sack. The boiler start throw the oil gun during and the flue -gas temperature bag collector that also can put into operation during lower, it also can be up to standard to make the boiler discharge at dust between the starting period, emits black cigarette problem in the time of not only can avoiding the boiler to start, still reduces the pollution to the environment with the certain degree.
Description
Technical field
The utility model relates to flue gas ash removal field, specifically belongs to small CFB boiler and starts smokeless emission system.
Background technology
At present, heat smoke Starting mode under domestic small CFB boiler many employings bed, in start-up course, need drop into the combustion-supporting heating of oil gun and send into the air of burner hearth to reach the object of bed material being carried out to preheating, this kind of Starting mode will produce a large amount of oil-contg. smokes.Boiler smoke treatment facility many employings sack cleaner, filtrate used mostly also is PPS material, there are certain requirements flue-gas temperature, humidity, also comparatively responsive to greasy dirt etc.When boiler startup, flue-gas temperature must must wait until higher than more than 100 DEG C the sack cleaner that can to put into operation after oil gun certain hour withdrawn from by boiler, otherwise, filter bag will be caused to stick with paste the phenomenon such as bag, corrosion, not only increase dust remover resistance, affect dust collector efficiency and boiler on-load ability, also likely cause the accidents such as filter bag damage fume emission exceeds standard.
For guaranteeing that cleaner is unaffected during boiler startup, to put into operation oil gun and in flue-gas temperature comparatively between lowstand in initial start stage, generally taking to open dedusting shunting device, low temperature oil-contg. smoke is discharged sky, causes certain pollution to surrounding environment.Namely under existing cleaner only can realize boiler accidental conditions, dedusting is up to standard, when discharging flue gas from bypass flue under damage, particularly during boiler startup throws grease gun igniting, a large amount of must from deduster bypass flue to airborne release containing oil fume.
Utility model content
The purpose of this utility model is to provide a kind of small CFB boiler and starts smokeless emission system, enable deduster be suitable for boiler and throw oil firing operating mode, filter oil-containing cloud of dust gas, throw during oil gun and flue-gas temperature comparatively also can put into operation between lowstand sack cleaner at boiler startup, dust emission also can be up to standard between the starting period to make boiler, when not only can avoid boiler startup, over-emitting black exhaust problem, also will to a certain degree reduce the pollution to environment.
The technical solution of the utility model is as follows;
A kind of small CFB boiler starts smokeless emission system, includes filter bed, multiple cloth bag, filter bed is equipped with the bed material that 400mm is thick, the granularity of bed material is less than 10mm, bed material is equipped with the thick flyash of 150mm, and the granularity of flyash is less than 1mm, cloth bag covers one deck dust layer.
Described cloth bag fabric select as PPS, PTFE blending and add appropriate superfine fibre, base cloth is pure PTFE, and the filter bag of PTFE overlay film is carried out on surface.
The utility model due to former filter bag of dust collector material be PPS, certain requirement is had to flue-gas temperature, humidity etc., and comparatively responsive to greasy dirt, cannot the oil smoke produced in the oil gun process that put into operation during boiler startup be processed, cause a large amount of ash-laden gas to discharge sky, cause environmental pollution.Filter bag of dust collector is changed for this problem, select fabric to be PPS+PTFE blending and add appropriate superfine fibre, base cloth is pure PTFE and the filter bag of PTFE overlay film is carried out on surface, because it has good oil rub resistance anti-caking, a small amount of greasy dirt does not have an impact to its performance.
The utility model changes filter bag of dust collector material, mixes PTFE and a small amount of superfine fibre etc. and forms composite, make to have its good oil rub resistance anti-caking, can prevent steam, greasy dirt etc. from causing sticking with paste bag phenomenon.Secondly before boiler startup, in conjunction with fluidization tests, precoating ash is carried out to filter bag of dust collector, namely dust layer is formed on filter bag surface, greasy dirt and steam in isolation flue gas, after removing oil gun, again jetting deashing is carried out to deduster after the flue-gas temperature deduster condition that puts into operation up to standard, dust containing greasy dirt, steam etc. is removed together with precoated shet, and is delivered to grey storehouse by ash conveying device.When not changing deduster structure and ignition of the boiler mode, through the object that the change boiler up to standard of technique smokelessly starts.
The utility model advantage does not change deduster structure, do not increase dust remover resistance and boiler startup cost, and do not affect boiler ignition start mode, and cost of investment is lower, successful.In test of many times, flue gas is without naked eyes Observable flue gas blackness, and online dust emission value, lower than discharge standard, has no effect to dedusting.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
See accompanying drawing, a kind of small CFB boiler starts smokeless emission system, include filter bed 1, multiple cloth bag 2, filter bed 1 is equipped with the bed material 3 that 400mm is thick, the granularity of bed material 3 is less than 10mm, bed material 3 is equipped with the thick flyash of 150mm 4, the granularity of flyash 4 is less than 1mm, cloth bag 2 covers one deck dust layer 5, cloth bag 2 fabric select as PPS, PTFE blending and add appropriate superfine fibre, base cloth is pure PTFE, and the filter bag of PTFE overlay film is carried out on surface.
Claims (2)
1. a small CFB boiler starts smokeless emission system, it is characterized in that, include filter bed, multiple cloth bag, filter bed is equipped with the bed material that 400mm is thick, the granularity of bed material is less than 10mm, bed material is equipped with the thick flyash of 150mm, and the granularity of flyash is less than 1mm, cloth bag covers one deck dust layer.
2. small CFB boiler according to claim 1 starts smokeless emission system, it is characterized in that, described cloth bag fabric select as PPS, PTFE blending and add appropriate superfine fibre, base cloth is pure PTFE, and the filter bag of PTFE overlay film is carried out on surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520871956.9U CN205109234U (en) | 2015-11-03 | 2015-11-03 | Small -size CFB boiler starts smokeless discharge system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520871956.9U CN205109234U (en) | 2015-11-03 | 2015-11-03 | Small -size CFB boiler starts smokeless discharge system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205109234U true CN205109234U (en) | 2016-03-30 |
Family
ID=55564883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520871956.9U Expired - Fee Related CN205109234U (en) | 2015-11-03 | 2015-11-03 | Small -size CFB boiler starts smokeless discharge system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205109234U (en) |
-
2015
- 2015-11-03 CN CN201520871956.9U patent/CN205109234U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5484295B2 (en) | Flue gas cleaning method | |
| CN109469903A (en) | The incineration treatment method of Industrial Solid Waste | |
| CN102235679B (en) | Dust removing device with wet and dry method combined mode | |
| CN101556051B (en) | Thermal power unit for desulfurization by wet method | |
| CN205109234U (en) | Small -size CFB boiler starts smokeless discharge system | |
| CN104633637B (en) | A kind of coal-burning boiler system | |
| CN201662077U (en) | Wet-dry process combined dust collection device | |
| CN107490011A (en) | A kind of salt bearing liquid wastes burning facility and technique for reducing dirt harm | |
| CN207688135U (en) | A kind of workshop waste incineration system | |
| CN204447734U (en) | A kind of Pneumatic emulsifying desulfurization and dedusting integrated tower and system thereof | |
| CN107805516B (en) | Environment-friendly machine-made charcoal and production method thereof | |
| CN107246619B (en) | The dust pelletizing system of biomass boiler | |
| CN106583049B (en) | A kind of control method for preventing electric precipitation coking and blocking | |
| CN103868054A (en) | Boiler starting speed increasing and oil-saving arrangement structure for heat power station and method for rapidly starting boiler | |
| CN205447719U (en) | Biomass boiler of anti -coking | |
| CN205227282U (en) | Horizontal full -automatic steam steam stove | |
| JPH0757894B2 (en) | Cleaning method of main exhaust gas of sintering machine | |
| CN207661783U (en) | A kind of small-sized rubbish gas charcoal complementation charing combustion furnace | |
| CN204943457U (en) | Bagasse boiler circulating combustion and smoke evacuation dry dust removal apparatus | |
| CN102997228A (en) | Combustion system with coal water slurry fired boiler | |
| CN203678150U (en) | Smoke spark eliminating device | |
| CN203857456U (en) | Boiler starting speed increasing and oil saving arrangement structure of heat power station | |
| CN203144436U (en) | Novel bag-type dust removing device of manganese-enriched iron ore blast furnace gas | |
| CN107381995A (en) | A kind of oil-containing mud sand hazardous waste disposal system | |
| CN105779077A (en) | Coal-saving emission-reduction integrating method for coal-fired boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160330 Termination date: 20171103 |