CN110017476A - A kind of bed materials of fluidized bed boiler add-on system and method - Google Patents
A kind of bed materials of fluidized bed boiler add-on system and method Download PDFInfo
- Publication number
- CN110017476A CN110017476A CN201910349989.XA CN201910349989A CN110017476A CN 110017476 A CN110017476 A CN 110017476A CN 201910349989 A CN201910349989 A CN 201910349989A CN 110017476 A CN110017476 A CN 110017476A
- Authority
- CN
- China
- Prior art keywords
- bed
- conveyer
- vibrating screen
- fluidized bed
- boiler
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
- F23C10/22—Fuel feeders specially adapted for fluidised bed combustion apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C2900/00—Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
- F23C2900/10004—Adding inert bed material to maintain proper fluidized bed inventory
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
A kind of bed materials of fluidized bed boiler add-on system provided by the invention and method, including slag storehouse, vibrating screen, conveyer and material blanking tube, wherein, the feeding inlet of the discharge port connection vibrating screen in slag storehouse, the feeding inlet of the fine material outlet connection conveyer of vibrating screen, the discharge port of conveyer connect boiler by material blanking tube；Bed material after screening is fed directly to coal feeder floor by this system, is cut down the number of intermediate links, and avoids bed material from flowing backwards, blockage problem；Multiple spot distribution is able to carry out using conveyer, realizes that multi-point distribution, more furnaces share, which quickly, steadily, continuously can add bed material to boiler；The present invention has many advantages, such as that system is simple, more furnaces are shared, conveying capacity is big, highly reliable, environment is excellent.
Description
Technical field
The invention belongs to convey feed technical field, and in particular to a kind of bed materials of fluidized bed boiler add-on system and method
Background technique
Bed material required medium, usually the arranged bottom ash of fluidized-bed combustion boiler or river sand when being fluidized-bed combustion boiler operation.It is flowing
Before fluidized bed boiler starts for the first time or in boiler operatiopn, need to be added bed material to guarantee normal inventory, to make furnace
Fuel is stable, efficient burning utilizes.
Bed material addition manner has artificial addition, pneumatic conveying addition, bucket elevator addition etc. at present.Manpower add the time compared with
Long, demand for labour is big, and work situation is poor；There is less than normal, granularity of contributing and high, system required easily to block, manage in pneumatic conveying addition
The problems such as road abrasion is big, energy consumption is high；Bucket elevator addition is relatively stable, but more furnaces need to be equipped with more bucket elevators, need to use vehicle
Or conveyer bed transport expects furnace bottom, bed material enters furnace point and compares concentration, needs to start blower or manually fill and lead up material, starts blower
Part bed material can be lost, if manually filling and leading up, demand for labour is big, and work situation is poor, so there is certain drawback.
Summary of the invention
The purpose of the present invention is to provide a kind of bed materials of fluidized bed boiler add-on system and methods, solve existing bed material
There are above-mentioned deficiencies for addition manner.
In order to achieve the above object, the technical solution adopted by the present invention is that:
A kind of bed materials of fluidized bed boiler add-on system provided by the invention, including slag storehouse, vibrating screen, conveyer and blanking
Pipe, wherein the feeding inlet of the discharge port connection vibrating screen in slag storehouse, the feeding inlet of the fine material outlet connection elevator of vibrating screen mention
The feeding inlet of the discharge port connection conveyer of the machine of liter, the discharge port of conveyer connect boiler by material blanking tube.
Preferably, elevator is high angle belt conveyer, scrapper conveyor or bucket elevator.
Preferably, at the feeding inlet of vibrating screen and one is provided at the fine material outlet of vibrating screen is flexible coupling.
Preferably, baiting valve is provided in the connecting pipe between the discharge port and vibrating screen in slag storehouse.
Preferably, maintenance plate is provided in the connecting pipe between the discharge port and baiting valve in slag storehouse.
Preferably, inlet valve is provided on material blanking tube.
Preferably, conveyer is to bury scraper plate conveying or belt conveyor.
Preferably, conveyer is belt conveyor, wherein the discharge port of belt conveyor is provided with belt plow.
A kind of bed materials of fluidized bed boiler adding method is based on a kind of bed materials of fluidized bed boiler add-on system, including following step
It is rapid:
The vibrating screen being arranged under slag storehouse sieves bed material, and the bed material at fine material outlet passes sequentially through elevator and defeated
It send machine to be delivered to material blanking tube, eventually enters into boiler.
Compared with prior art, the beneficial effects of the present invention are:
A kind of bed materials of fluidized bed boiler add-on system provided by the invention and method, by vibrating screen by slag bin discharge port external
Bed material is sieved, and qualified bed material passes sequentially through elevator and conveyer is sent to stokehold feeder, is then fallen by material blanking tube
To feeder or coal spout, boiler is eventually entered into；Bed material after screening is fed directly to coal feeder floor by elevator by this system,
It cuts down the number of intermediate links, avoids bed material from flowing backwards, blockage problem；Multiple spot distribution is able to carry out using conveyer, realizes multi-point distribution, more
Furnace shares, which quickly, steadily, continuously can add bed material to boiler；With system, simple, more furnaces share, are defeated the present invention
The advantages that amount of sending is big, highly reliable, environment is excellent.
Further, it is respectively provided with and is flexible coupling in the feeding inlet of vibrating screen and discharge outlet, prevent from occurring shaking in vibration splitting.
Further, the maintenance plate of setting, in maintenance, for preventing material from coming out.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the present invention；
Wherein, 1, slag storehouse 2, maintenance plate 3, baiting valve 4, the 5, vibrating screen 6 that is flexible coupling, fine material outlet 7, coarse fodder outlet 8, mention
Rise machine 9, conveyer 10, material blanking tube 11, inlet valve 12, boiler.
Specific embodiment
With reference to the accompanying drawing, the present invention is described in more detail.
Such as Fig. 1, a kind of bed materials of fluidized bed boiler add-on system provided by the invention, including slag storehouse 1, maintenance plate 2, blanking
Valve 3, the 4, vibrating screen 5 that is flexible coupling, fine material outlet 6, coarse fodder outlet 7, elevator 8, conveyer 9, material blanking tube 10, inlet valve 11 and pot
Furnace 12, wherein slag storehouse 1 goes out for storing bed material, the feeding inlet of the discharge port connection vibrating screen 5 in slag storehouse 1, the fines of vibrating screen 5
Mouth connects the feeding inlet of conveyer 9 by elevator 8, and the discharge port of conveyer 9 connects feeder or coal breakage by material blanking tube 10
The discharge port of the feeding inlet of pipe, feeder or coal spout connects boiler 12.
Baiting valve 3 is provided in connecting pipe between the discharge port and vibrating screen 5 in slag storehouse 1.
Maintenance plate 2 is provided in connecting pipe between the discharge port and vibrating screen 5 in slag storehouse 1, in maintenance, for preventing
Only material comes out.
Maintenance plate 2 is placed in the upper end of baiting valve 3.
It is provided with one at the feeding inlet of vibrating screen 5 and at the fine material outlet of vibrating screen 5 and is flexible coupling 4, being flexible coupling 4 is used for
Expansion is absorbed, prevents vibrating screen 5 in vibration, vibration is caused to split.
Coarse fodder outlet 7 is additionally provided on vibrating screen 5.
Inlet valve 11 is provided on material blanking tube 10.
Elevator 8 is high angle belt conveyer, scrapper conveyor or bucket elevator.
Conveyer 9 is to bury scraper plate conveying or belt conveyor, wherein when conveyer 9 is belt conveyor, Belt Conveying
The discharge port of machine is provided with belt plow.
The working principle of the invention is:
The vibrating screen 5 being arranged under slag storehouse 1 sieves bed material, and qualified bed material is promoted to boiler by elevator 8
Then the podium level of feeder is delivered to stokehold feeder by conveyer 9, then by material blanking tube 10 drop down onto feeder or
Coal spout eventually enters into boiler 12；Bed material after screening is directly passed through elevator 8 and sent to coal feeder floor by this system, in reduction
Between link, avoid bed material flow backwards, blockage problem；Multiple spot distribution is carried out using conveyer, realizes that multi-point distribution, more furnaces share, is
System can quickly, it is steady, continuously add bed material；With system, simple, more furnaces share the present invention, conveying capacity is big, highly reliable, environment
The advantages that excellent.
When not in use, close inlet valve 11 prevents flue gas anti-channeling to system.
An example of the present invention is described in detail above, but the content is only preferable implementation of the invention
Example, must not believe that for limiting practical range of the invention.All variations made according to the present patent application range and improvement etc.,
It should still belong within covering scope of the invention.
Claims (9)
1. a kind of bed materials of fluidized bed boiler add-on system, which is characterized in that including slag storehouse (1), vibrating screen (5), elevator (8),
Conveyer (9) and material blanking tube (10), wherein slag storehouse (1) discharge port connection vibrating screen (5) feeding inlet, vibrating screen (5) it is thin
The feeding inlet of material outlet connection elevator (8), the feeding inlet of discharge port connection conveyer (9) of elevator (8), conveyer (9)
Discharge port by material blanking tube (10) connection boiler (12).
2. a kind of bed materials of fluidized bed boiler add-on system according to claim 1, which is characterized in that elevator (8) is big
Inclined angle belt, scrapper conveyor or bucket elevator.
3. a kind of bed materials of fluidized bed boiler add-on system according to claim 1, which is characterized in that vibrating screen (5) enter
One, which is provided with, at material mouth and at the fine material outlet of vibrating screen (5) is flexible coupling (4).
4. a kind of bed materials of fluidized bed boiler add-on system according to claim 1, which is characterized in that the discharging of slag storehouse (1)
Baiting valve (3) are provided in connecting pipe between mouth and vibrating screen (5).
5. a kind of bed materials of fluidized bed boiler add-on system according to claim 4, which is characterized in that the discharging of slag storehouse (1)
Maintenance plate (2) is provided in connecting pipe between mouth and baiting valve (3).
6. a kind of bed materials of fluidized bed boiler add-on system according to claim 1, which is characterized in that material blanking tube is set on (10)
It is equipped with inlet valve (11).
7. a kind of bed materials of fluidized bed boiler add-on system according to claim 1, which is characterized in that conveyer (9) is to bury
Scraper plate conveying or belt conveyor.
8. a kind of bed materials of fluidized bed boiler add-on system according to claim 7, which is characterized in that when conveyer (9) is
When belt conveyor, wherein the discharge port of belt conveyor is provided with belt plow.
9. a kind of bed materials of fluidized bed boiler adding method, which is characterized in that be based on one kind of any of claims 1-8
Bed materials of fluidized bed boiler add-on system, comprising the following steps:
The vibrating screen (5) being arranged under slag storehouse (1) sieves bed material, and the bed material at fine material outlet passes sequentially through elevator
(8) and conveyer (9) is delivered to material blanking tube (10), eventually enters into boiler (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910349989.XA CN110017476A (en) | 2019-04-28 | 2019-04-28 | A kind of bed materials of fluidized bed boiler add-on system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910349989.XA CN110017476A (en) | 2019-04-28 | 2019-04-28 | A kind of bed materials of fluidized bed boiler add-on system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110017476A true CN110017476A (en) | 2019-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910349989.XA Pending CN110017476A (en) | 2019-04-28 | 2019-04-28 | A kind of bed materials of fluidized bed boiler add-on system and method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014048328A1 (en) * | 2012-09-25 | 2014-04-03 | 中国东方电气集团有限公司 | Dual-bed system to prevent the pollution of boiler heating surface |
| CN103742933A (en) * | 2013-12-24 | 2014-04-23 | 青岛德施普机械工业有限公司 | Coal slurry conveying system and application method thereof |
| CN205174427U (en) * | 2015-12-09 | 2016-04-20 | 吉林省汇能能源股份有限公司 | Feeding system of living beings charcoal gas electric heat energy comprehensive utilization project |
| CN106016255A (en) * | 2016-07-11 | 2016-10-12 | 淮南矿业(集团)有限责任公司 | Rapid bed material adding system of boiler |
| CN106051756A (en) * | 2016-06-13 | 2016-10-26 | 江苏润海能源科技有限公司 | Mechanical bed material adding system of boiler |
| CN209876907U (en) * | 2019-04-28 | 2019-12-31 | 中国华能集团清洁能源技术研究院有限公司 | Fluidized bed boiler bed material adding system |
-
2019
- 2019-04-28 CN CN201910349989.XA patent/CN110017476A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014048328A1 (en) * | 2012-09-25 | 2014-04-03 | 中国东方电气集团有限公司 | Dual-bed system to prevent the pollution of boiler heating surface |
| CN103742933A (en) * | 2013-12-24 | 2014-04-23 | 青岛德施普机械工业有限公司 | Coal slurry conveying system and application method thereof |
| CN205174427U (en) * | 2015-12-09 | 2016-04-20 | 吉林省汇能能源股份有限公司 | Feeding system of living beings charcoal gas electric heat energy comprehensive utilization project |
| CN106051756A (en) * | 2016-06-13 | 2016-10-26 | 江苏润海能源科技有限公司 | Mechanical bed material adding system of boiler |
| CN106016255A (en) * | 2016-07-11 | 2016-10-12 | 淮南矿业(集团)有限责任公司 | Rapid bed material adding system of boiler |
| CN209876907U (en) * | 2019-04-28 | 2019-12-31 | 中国华能集团清洁能源技术研究院有限公司 | Fluidized bed boiler bed material adding system |
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