CN106766969A - A kind of fluidized bed furnace waste heat recycling system - Google Patents
A kind of fluidized bed furnace waste heat recycling system Download PDFInfo
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- CN106766969A CN106766969A CN201710094561.6A CN201710094561A CN106766969A CN 106766969 A CN106766969 A CN 106766969A CN 201710094561 A CN201710094561 A CN 201710094561A CN 106766969 A CN106766969 A CN 106766969A
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- fluidized bed
- bed furnace
- air
- regulation
- hot
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B11/00—Calcium sulfate cements
- C04B11/02—Methods and apparatus for dehydrating gypsum
- C04B11/028—Devices therefor characterised by the type of calcining devices used therefor or by the type of hemihydrate obtained
- C04B11/036—Devices therefor characterised by the type of calcining devices used therefor or by the type of hemihydrate obtained for the dry process, e.g. dehydrating in a fluidised bed or in a rotary kiln, i.e. to obtain beta-hemihydrate
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B15/00—Fluidised-bed furnaces; Other furnaces using or treating finely-divided materials in dispersion
- F27B15/02—Details, accessories, or equipment peculiar to furnaces of these types
- F27B15/12—Arrangements of dust collectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Air Supply (AREA)
Abstract
The present invention relates to a kind of fluidized bed furnace waste heat recycling system, including：First fluidized bed furnace, the first primary air fan, expansion chamber, heat exchanger, the first electricity gathers dust, the first hot main induced draft fan, the first regulation and control chimney, the first pipeline.First primary air fan is connected installation with the air inlet of the first fluidized bed furnace, expansion chamber is connected installation with the air outlet of the first fluidized bed furnace, heat exchanger is connected installation with the air outlet of the first fluidized bed furnace, first electricity gathers dust connect setting at the air outlet of heat exchanger, the air outlet that first hot main induced draft fan gathers dust with the first electricity is connected installation, at the air outlet of the described first hot main induced draft fan, the first pipeline is arranged between the first hot main induced draft fan outlet and the first primary air fan air inlet for first regulation and control chimney connection.The present invention realizes fluidized bed furnace heat recovery, has saved the energy, reduces hot cigarette exhaust emission environment.
Description
Technical field
The present invention relates to a kind of fluidized bed furnace waste heat recycling system.
Background technology
It is main to the desulfurization containing 12% or so absorption water using the energy ezpenditure of desulfurized gesso of flue gas production plasterboard
Gypsum carries out drying calcination process and the drying process to wet plasterboard, and especially plasterboard drying process needs consumption very big
Heat, fluidized bed furnace is the visual plant of generation heat energy in gypsum board manufacturing process.The heat energy that fluidized bed furnace is produced is with the shape of heat smoke
Formula is discharged to greatly by after electric dust-collecting and dust-removing by the circulation air in heat exchanger heating drier, the heat smoke after heat exchange by chimney
In gas.The part heat smoke still contains heat higher, and the temperature of outer heat extraction flue gas is general at 150 DEG C or so.
Because plasterboard is dried and raw material stoving calcining needs substantial amounts of hot blast, thus fluidized bed furnace primary air fan need to
Burner hearth is blown into substantial amounts of cold air.According to our factory's actual conditions, primary air fan air quantity disclosure satisfy that per hour in 7.2 ten thousand steres
Production requirement, fluidized bed furnace Coal-fired capacity per hour 3-5 tons, it is necessary to the ten thousand stere of fresh air 2.5-3.5 ten thousand steres are every per hour
Hour, therefore the cold air that primary air fan entrance has 4 ten thousand steres per hour can replace by outer waste air.
The content of the invention
It is an object of the present invention to provide a kind of fluidized bed furnace waste heat recycling system, should will be discharged in air outward
The most of recovery of waste heat flue gas reuses, and purpose one is saving energy consumption, and two is to reduce fume emission.
A kind of fluidized bed furnace waste heat recycling system that the present invention is provided, including：
First fluidized bed furnace, provides a system to heat energy；
First primary air fan, the air inlet with first fluidized bed furnace is connected installation, for first fluidized bed furnace
Burner hearth is blown into fresh air；
Expansion chamber, the air outlet with first fluidized bed furnace is connected installation；
Heat exchanger, installation is connected with the expansion chamber, and the hot cigarette that the fluidized bed furnace is produced is heated by the heat exchanger and followed
Annular space gas；
First electricity gathers dust, connect setting at the air outlet of the heat exchanger, for the hot cigarette discharged to the heat exchanger
Carry out dedusting；
First hot main induced draft fan, the air outlet gathered dust with first electricity is connected installation, for outwards discharge flue gas；
First regulation and control chimney, connection is main according to the described first heat at the air outlet of the described first hot main induced draft fan
Air-introduced machine excludes the state of the regulation and control chimney of temperature adjusting first of hot cigarette；
First pipeline, is arranged between the first hot main induced draft fan outlet and the first primary air fan air inlet, when described first
When regulation and control chimney is closed, hot cigarette is discharged by the first pipeline to first primary air fan from the described first hot main induced draft fan
It is interior.
Preferably, also include：
Second fluidized bed furnace, provides a system to heat energy；
Second primary air fan, the air inlet with second fluidized bed furnace is connected installation, for second fluidized bed furnace
Burner hearth is blown into fresh air；
Mixing chamber, installation is connected with the expansion chamber, heat smoke and cold flue gas from the second fluidized bed furnace expansion chamber
Mix to predetermined temperature；
Beater, at mixing chamber air outlet, being blown to beater in mixing chamber heating mixing heat smoke is used for
Frying raw material (raw material), and raw material is broken up attenuate, drying and dehydrating；
Second electricity gathers dust, connect setting at the air outlet of the beater, for the hot cigarette discharged to the beater
Carry out dedusting；
Ball mill, at the air outlet that second electricity gathers dust；
Second hot main induced draft fan, installation is connected with the ball mill, for outwards discharge flue gas；
Second regulation and control chimney, connection is main according to the described second heat at the air outlet of the described second hot main induced draft fan
Air-introduced machine discharges the state of the regulation and control chimney of temperature adjusting second of hot cigarette；
Second pipe, is arranged between the described second hot main induced draft fan outlet and the mixing chamber air inlet, when described the
When two regulation and control chimneys are closed, discharge hot cigarette from the described second hot main induced draft fan and be transported to by second pipe in the mixing chamber.
Preferably, the first regulation flashboard is installed in the first regulation and control chimney.
Preferably, the first regulation flashboard is provided with the first adjusting knob, and manual or automatic transmission is selected for adjusting.
Preferably, the second regulation flashboard is installed in the second regulation and control chimney.
Preferably, the second regulation flashboard is provided with the second adjusting knob, and manual or automatic transmission is selected for adjusting.
Preferably, first primary air fan is connected with second primary air fan, shares an air inlet, reclaims profit
Return air returns to the air inlet, and two blower fans may be by the return air.
The beneficial effects of the invention are as follows：
First, coal consumption about 11.4% is saved.Practical application effect example：Company's gypsum board manufacture coal consumption was by 13 years 1.03Kg/
㎡ (0.80kg mark coal/square metre) drops to 14 years 0.88kg/ ㎡ (0.65kg marks coal/square metre), produces 20000000 ㎡ per year within 2014
Plasterboard, year saves coal-fired 4500 tons, cost-effective about 1,290,000 yuan.
2nd, fume emission is reduced.Reused in returning to hot-blast stove due to heat smoke major part, make to be discharged into air
Flue gas greatly reduce, and are effectively protected environment, have accomplished clean manufacturing.
3rd, through multiple field survey, return air amount accounting is basic 0.7 or so, improves the performance of clinker.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Specific embodiment
In order that the technological means of the present apparatus, creation characteristic, reached purpose and effect are easy to understand, with reference to tool
Body is illustrated, and is described in detail.
The invention provides a kind of fluidized bed furnace waste heat recycling system as shown in the left-half of accompanying drawing 1, including：First
Fluidized bed furnace 1, the first primary air fan 2, expansion chamber 3, heat exchanger 4, the first electricity gathers dust 5, the first hot main induced draft fan 6, the first regulation and control cigarette
Chimney 7, the first pipeline 8.First primary air fan 2 is connected installation, the fluidized bed furnace 1 of expansion chamber 3 and first with the air inlet of the first fluidized bed furnace 1
Air outlet connection install, heat exchanger 4 is connected installation with the air outlet of the first fluidized bed furnace 1, and the first electricity 5 connect settings of gathering dust are being changed
At the air outlet of hot device 4, gather dust 5 air outlet of the first hot main induced draft fan 6 and the first electricity is connected installation, and the first regulation and control chimney 7 connects
Connect at the air outlet of the described first hot main induced draft fan 6, the first pipeline 8 is arranged on the outlet of the first hot main induced draft fan 6 and the
Between the air inlet of one primary air fan 2.
First primary air fan 2 is blown into fresh air to the burner hearth of the first fluidized bed furnace 1, and coal burning is produced in the first fluidized bed furnace 1
Raw heat smoke reaches heat exchanger 4 after expansion chamber 3, and for heat cycles air, the circulation air is blown to drying machine for doing
Drierite plate；Heat smoke 5 carries out dedusting by being gathered dust into the first electricity after heat exchanger 4；Flue gas after dedusting is drawn by the first heat master
Blower fan 6 is evacuated to the first regulation and control chimney 7；First regulation flashboard 71 is installed in first regulation and control chimney 7.First regulation flashboard 71 is set
There is the first adjusting knob 711, manual and automatic transmission is selected for adjusting.First adjusting knob 711 is rotated into after automatic transmission,
The temperature of hot cigarette is excluded according to the first hot main induced draft fan 6, middle control personnel pass through electrical control program using computer end temperature control software
The first adjustment work for adjusting the aperture of flashboard 71 is performed, is needed to adjust the aperture of flashboard according to production, and then adjust the big of return air
It is small.Hot cigarette is re-injected into the burner hearth of fluidized bed furnace 1 by the first return air duct 7, the first primary air fan 2.Reduce heat smoke
Discharge, realizes recycling.
Such as Fig. 1 right half parts, in the present embodiment, a kind of fluidized bed furnace waste heat recycling system also includes：Second boiling
Stove 21, the second primary air fan 22, mixing chamber 23, beater 24, the second electricity gathers dust 25, ball mill 26, the second hot main induced draft fan 27,
Second regulation and control chimney 28, second pipe 29.
Second primary air fan 22 is blown into fresh air to the burner hearth of the second fluidized bed furnace 21；Coal burning in second fluidized bed furnace 21
The heat smoke of generation enters mixing chamber 23 after expansion chamber 3, and the mixing chamber 23 is mixed by heat smoke and cold flue gas, i.e. heat smoke handle
Become cold flue gas after raw material (raw material) heating frying ripe material, the cold flue gas of part are discharged in air, and another part cold flue gas are returned
To mixing chamber 23, it is well mixed with the heat smoke from the expansion chamber 3 of the second fluidized bed furnace 21 to uniform temperature, mixing in mixing chamber 23
Heat smoke afterwards is blown to beater 24 for frying raw material (raw material).The mixing heat smoke for being blown into hammer beater 24 adds raw material
Heat, clinker is become after raw material drying, dehydration；At the same time, raw material is broken up and attenuated by hammer beater 24, dry beneficial to raw material
Dry, dehydration, and next process clinker grinding.Heat smoke carries clinker and is gathered dust 25 dedustings into the second electricity, and clinker is collected into
The grinding of ball mill 26, the cold flue gas part after dedusting is evacuated to the second regulation and control chimney 28 by the second hot main induced draft fan 27；Second adjusts
Second regulation flashboard 281 is installed in Tobacco Control chimney 28.Second regulation flashboard 281 is provided with the second adjusting knob 2811, for adjusting
Manual and automatic transmission is selected in selected parts.Second adjusting knob 2811 is rotated into after automatic transmission, according to the row of the second hot main induced draft fan 27
Except the temperature of hot cigarette, middle control personnel perform the second regulation flashboard 2811 and open using computer end temperature control software by electrical control program
The adjustment work of degree, needs to adjust the aperture of flashboard, and then adjust the size of return air according to production.So a part of cold flue gas row
To in air, another part cold flue gas return to mixing chamber 23 by the second return air duct 29.
Additionally, the first primary air fan 2 is connected with second primary air fan 22, an air inlet is shared, recycled
Return air return to the air inlet, two blower fans may be by the return air.
The present embodiment, saves coal consumption about 11.4%, and by 13 years 1.03Kg/ ㎡, (0.80kg was marked company's gypsum board manufacture coal consumption
Coal/square metre) 14 years 0.88kg/ ㎡ (0.65kg marks coal/square metre) are dropped to, produce 20000000 ㎡ plasterboards, the Spring Festival holidays per year within 2014
It is about coal-fired 4500 tons, cost-effective about 1,290,000 yuan.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (7)
1. a kind of fluidized bed furnace waste heat recycling system, it is characterised in that including：
First fluidized bed furnace, provides a system to heat energy；
First primary air fan, the air inlet with first fluidized bed furnace is connected installation, for the burner hearth to first fluidized bed furnace
It is blown into fresh air；
Expansion chamber, the air outlet with first fluidized bed furnace is connected installation；
Heat exchanger, installation is connected with the expansion chamber, and the hot cigarette that the fluidized bed furnace is produced is empty by the heat exchanger heat cycles
Gas；
First electricity gathers dust, connect setting at the air outlet of the heat exchanger, for being carried out to the hot cigarette that the heat exchanger is discharged
Dedusting；
First hot main induced draft fan, the air outlet gathered dust with first electricity is connected installation, for outwards discharge flue gas；
First regulation and control chimney, connection is arranged at the air outlet of the described first hot main induced draft fan, according to the described first hot main air inducing
Machine excludes the state of the regulation and control chimney of temperature adjusting first of hot cigarette；
First pipeline, is arranged between the first hot main induced draft fan outlet and the first primary air fan air inlet, when the described first regulation and control
When chimney is closed, hot cigarette is discharged by the first pipeline to first primary air fan from the described first hot main induced draft fan.
2. fluidized bed furnace waste heat recycling system as claimed in claim 1, it is characterised in that also include：
Second fluidized bed furnace, provides a system to heat energy；
Second primary air fan, the air inlet with second fluidized bed furnace is connected installation, for the burner hearth to second fluidized bed furnace
It is blown into fresh air；
Mixing chamber, installation is connected with the expansion chamber, and the heat smoke from the second fluidized bed furnace expansion chamber mixes with cold flue gas
To predetermined temperature；
Beater, at mixing chamber air outlet, beater is blown to for frying in mixing chamber heating mixing heat smoke
Raw material (raw material), and raw material is broken up attenuate, drying and dehydrating；
Second electricity gathers dust, connect setting at the air outlet of the beater, for being carried out to the hot cigarette that the beater is discharged
Dedusting；
Ball mill, at the air outlet that second electricity gathers dust；
Second hot main induced draft fan, installation is connected with the ball mill, for outwards discharge flue gas；
Second regulation and control chimney, connection is arranged at the air outlet of the described second hot main induced draft fan, according to the described second hot main air inducing
Machine discharges the state of the regulation and control chimney of temperature adjusting second of hot cigarette；
Second pipe, is arranged between the described second hot main induced draft fan outlet and the mixing chamber air inlet, when the described second tune
When Tobacco Control chimney is closed, discharge hot cigarette from the described second hot main induced draft fan and be transported to by second pipe in the mixing chamber.
3. fluidized bed furnace waste heat recycling system as claimed in claim 1, it is characterised in that peace in the first regulation and control chimney
Equipped with the first regulation flashboard.
4. fluidized bed furnace waste heat recycling system as claimed in claim 3, it is characterised in that the first regulation flashboard is set
There is the first adjusting knob, manual or automatic transmission is selected for adjusting.
5. fluidized bed furnace waste heat recycling system as claimed in claim 2, it is characterised in that peace in the second regulation and control chimney
Equipped with the second regulation flashboard.
6. fluidized bed furnace waste heat recycling system as claimed in claim 5, it is characterised in that the second regulation flashboard is set
There is the second adjusting knob, manual or automatic transmission is selected for adjusting.
7. the fluidized bed furnace waste heat recycling system as described in claim 1 and 2, it is characterised in that first primary air fan
It is connected with second primary air fan, shares an air inlet, the return air of recycling returns to the air inlet, and two blower fans are all
The return air can be utilized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710094561.6A CN106766969A (en) | 2017-02-21 | 2017-02-21 | A kind of fluidized bed furnace waste heat recycling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710094561.6A CN106766969A (en) | 2017-02-21 | 2017-02-21 | A kind of fluidized bed furnace waste heat recycling system |
Publications (1)
| Publication Number | Publication Date |
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| CN106766969A true CN106766969A (en) | 2017-05-31 |
Family
ID=58958536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710094561.6A Pending CN106766969A (en) | 2017-02-21 | 2017-02-21 | A kind of fluidized bed furnace waste heat recycling system |
Country Status (1)
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108716858A (en) * | 2018-05-02 | 2018-10-30 | 太仓北新建材有限公司 | A kind of fluidized bed furnace waste gas utilization method and device |
| CN109099718A (en) * | 2018-10-24 | 2018-12-28 | 株洲火炬工业炉有限责任公司 | A kind of rotary kiln residual neat recovering system |
| CN109579555A (en) * | 2019-01-25 | 2019-04-05 | 山东莱克工程设计有限公司 | It is a kind of to recycle residual heat from kiln furnace device and method using circulation air |
| CN111059526A (en) * | 2018-10-16 | 2020-04-24 | 湖北北新建材有限公司 | System for improving coal-fired efficiency |
| CN113969353A (en) * | 2020-07-23 | 2022-01-25 | 黄石加柯环保科技有限公司 | Waste treatment method and treatment equipment for electronic component support plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108716858A (en) * | 2018-05-02 | 2018-10-30 | 太仓北新建材有限公司 | A kind of fluidized bed furnace waste gas utilization method and device |
| CN111059526A (en) * | 2018-10-16 | 2020-04-24 | 湖北北新建材有限公司 | System for improving coal-fired efficiency |
| CN109099718A (en) * | 2018-10-24 | 2018-12-28 | 株洲火炬工业炉有限责任公司 | A kind of rotary kiln residual neat recovering system |
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| CN109579555A (en) * | 2019-01-25 | 2019-04-05 | 山东莱克工程设计有限公司 | It is a kind of to recycle residual heat from kiln furnace device and method using circulation air |
| CN113969353A (en) * | 2020-07-23 | 2022-01-25 | 黄石加柯环保科技有限公司 | Waste treatment method and treatment equipment for electronic component support plate |
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Application publication date: 20170531 |