CN205262225U - Hot flue gas recycle system - Google Patents
Hot flue gas recycle system Download PDFInfo
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- CN205262225U CN205262225U CN201521013555.6U CN201521013555U CN205262225U CN 205262225 U CN205262225 U CN 205262225U CN 201521013555 U CN201521013555 U CN 201521013555U CN 205262225 U CN205262225 U CN 205262225U
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- flue gas
- chimney
- fan
- smoke discharging
- discharging pipe
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- 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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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model provides a hot flue gas recycle system, includes fluidized bed furnace, chimney, the fluidized bed furnace divide into two cavitys, and the bottom of two cavitys is provided with the primary air fan respectively, the top of two cavitys of fluidized bed furnace is provided with exhaust pipe respectively, has set gradually on one of them exhaust pipe that heat exchanger, electricity gather dust, main draught fan, chimney, set gradually the mixing chamber on another exhaust pipe, broken up the machine, the electricity gathers dust, main draught fan, chimney, main draught fan and primary air fan entrance on exhaust pipe are provided with hot -air pipes, be provided with flue gas backflow pipeline between main draught fan on another exhaust pipe and the mixing chamber, be provided with the flashboard in the chimney, the flashboard is controlled by servo electric actuator. The beneficial effect of the utility model as follows: the heat obtains cyclic utilization, not only energy saving, still environmental protection more.
Description
Technical field
The utility model relates to a kind of heat energy recycling system, is specifically related to a kind of thermal flue gas back and receives utilizationSystem.
Background technology
In recent years, the output of China's plasterboard has realized annual more than 20% amplification, but plasterboard per capitaOccupancy volume far falls behind developed country, therefore, and the production technology that need to not only enhance productivity but also save the energyAnd equipment, meanwhile, country improves constantly the attention rate of the energy and environmental protection. Therefore reduce unit consumption and productionCost, reduces disposal of pollutants and has become hot technology, produces plasterboard with desulfurized plaster board, not only solves fireThe solid waste problem of power plant, and provide cheap raw material for plasterboard factory. But desulfurated plasterConventionally contain the adsorbed water of 12%-15%, energy consumption problem becomes focus in gypsum board manufacture process.
Heating system is the core technology that desulfurated plaster is prepared Thistle board in the prior art, and it comprisesThe dry heating system of raw material calcining heating system and heating power; And fluidized bed furnace is the thermal source of heating system, be realThe key of existing energy-saving and emission-reduction.
Therefore, in order to realize the reasonable utilization of the energy, reduce the discharge capacity of pollutant, needing one badly canThe production that effectively utilize resource, reduce toxic emission, has reduced production costs, reduced production coal consumption is establishedStandby and processing technology.
Utility model content
The utility model provides a kind of thermal flue gas back to receive and utilizes system, in order to solve desulfurization stone in prior artCream plate expends huge heat energy in the process of anhydrating, and pollutes discharge capacity large, and heat energy can not get effective profitWith problem.
The technical scheme that the utility model is taked is as follows:
A kind of thermal flue gas back is received and is utilized system, comprises fluidized bed furnace, chimney, and described fluidized bed furnace is divided into two chambeiesBody, the bottom of two cavitys is respectively arranged with primary air fan, and the top of two cavitys of described fluidized bed furnace is dividedBe not provided with smoke discharging pipe, on one of them smoke discharging pipe, be disposed with that heat exchanger, electricity gather dust, master drawsBlower fan, chimney; On another smoke discharging pipe, be disposed with mixing chamber, break up mechanical, electrically gather dust, main drawingBlower fan, chimney; Main induced draft fan and primary air fan porch on a described smoke discharging pipe are provided with hot blastPipeline; Between main induced draft fan on described another smoke discharging pipe and mixing chamber, be provided with smoke backflow pipeline;In described chimney, be provided with flashboard, described flashboard is by servo-electric actuating mechanism controls.
Especially, the pipe diameter of described smoke discharging pipe and hot air duct is Ф 800mm.
Especially, Feng Liang≤9.5 ten thousand m of described primary air fan3/h。
Especially, the Feng Ya≤7000pa of described primary air fan.
Especially, described servo-electric executing agency is servo electric jar.
Especially, the hot air duct that the main induced draft fan on described smoke discharging pipe and primary air fan porch arrangePlace is provided with air door, and described air door is connected with electric pushrod.
Especially, the smoke backflow pipeline arranging between the main induced draft fan on described smoke discharging pipe and mixing chamberOn be provided with air door, described air door is connected with electric pushrod.
The beneficial effects of the utility model are as follows: owing to being provided with flashboard in chimney, and have servo electricitySwitch and the folding degree of moving cylinder control flashboard, so can control the discharge of flue gas; Due to settingHave hot air duct and smoke backflow pipeline, effectively promoted the backflow utilization of flue gas, heat is circulatedUtilize, not only save the energy, also environmental protection more.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Wherein:
1, chimney; 2, main induced draft fan; 3, electricity gathers dust; 4, beater; 5, mixing chamber; 6, boilingFurnace cavity; 7, primary air fan; 8, primary air fan; 9, fluidized bed furnace cavity; 10, heat exchanger; 11, electricityGather dust; 12, main induced draft fan; 13, chimney.
Detailed description of the invention
As shown in Figure 1, a kind of thermal flue gas back described in the utility model is received and is utilized system, comprises fluidized bed furnace,Described fluidized bed furnace comprises two cavitys, i.e. the end of fluidized bed furnace cavity 6 and 9, two cavitys of fluidized bed furnace cavityPortion is respectively arranged with primary air fan 7,8, and the top of two cavitys of described fluidized bed furnace is respectively arranged with smoke evacuationPipeline, on one of them smoke discharging pipe, be disposed with that heat exchanger 10, electricity gather dust 3, main induced draft fan 12,Chimney 13; On another smoke discharging pipe, be disposed with that mixing chamber 5, beater 4, electricity gather dust 3, main drawingBlower fan 2, chimney 1; Main induced draft fan 12 outlet and primary air fan 8 entrances on a described smoke discharging pipePlace is provided with hot air duct; Between main induced draft fan 2 on described another smoke discharging pipe and mixing chamber 5, establishBe equipped with smoke backflow pipeline.
The inner flashboard automatically regulating that increases of row's chimney 1,13 outside, flashboard is carried out machine by servo-electricStructure control, can adopt switch and the folding degree of servo electric jar control flashboard, so can controlThe discharge of flue gas.
Described pipe diameter Ф 800mm, also can be slightly larger than 800mm.
The hot air duct place that main induced draft fan 12 on smoke discharging pipe and primary air fan 8 porch arrange is provided withAir door, described air door is connected with electric pushrod. Electric pushrod can be controlled the folding degree of air door, and thenControl air quantity, air quantity can be adjusted an air temperature and a wind oxygen content after adjusting.
On the smoke backflow pipeline arranging between main induced draft fan 2 on described smoke discharging pipe and mixing chamber 5, establishBe equipped with air door, described air door is connected with electric pushrod. Electric pushrod can be controlled the folding degree of air door,Air quantity can be adjusted, and then controls the grog performance of calcining out.
Because hot-air is different with normal temperature air proportion, need to increase air quantity and the blast of primary air fan 7,8,By changing impeller and the motor of primary air fan 8, make the air quantity of primary air fan 7,8 by 7.2 ten thousand m3/hBring up to 9.5 ten thousand m3/ h, blast is brought up to 7000pa by 5500pa.
The wind-warm syndrome of introducing primary air fan 7,8 entrances after hot air duct and smoke backflow pipeline is by original 15DEG C bring up to 115 DEG C (mean annual temperatures), primary air fan 7,8 bellows oxygen content in airs fall by 21%To 13.5%, the oxygen content of outer heat extraction cigarette drops to 10.5% by 15.8%.
The heat energy that fluidized bed furnace produces passes through the circulation in heat exchanger 10 heating driers with the form of hot flue gasAir, the hot flue gas after heat exchange is gathered dust after 3 dedustings and is discharged in atmosphere by chimney by electricity, the hot cigarette of this partGas is still containing higher heat, and the temperature of outer heat extraction flue gas is generally 150 DEG C of left and right.
On gypsum board production line, because plasterboard is dry and raw material frying needs a large amount of hot blasts, this justNeed the primary air fan of fluidized bed furnace to be blown into a large amount of cold airs to the burner hearth of fluidized bed furnace, primary air fan air quantity exists7.2 ten thousand m3/ h can meet Production requirement, and fluidized bed furnace Coal-fired capacity 3-5 ton per hour, needs fresh air2.5 ten thousand m3/ h-3.5 ten thousand m3/ h, therefore primary air fan entrance is per hour 40,000 m3Cold air canReplaced by outer waste air. Meanwhile, 70 of chimney discharge, 000m3Also contaminated environment of/h waste gas.
The utility model proves by long-time use, because hot flue gas major part is got back in hot-blast stove againUtilize, the useless flue gas that makes to be discharged in atmosphere greatly reduces, and effectively protection of the environment, has accomplished clean lifeProduce. Gypsum board manufacture coal consumption drops to 14 by 13 years 1.03kg/ ㎡ before transforming (0.8kg mark Mei/㎡)Year 0.88kg/ ㎡ (0.65kg marks coal/㎡), by producing 3000 ten thousand ㎡ plasterboards per year, can save fire coal every year4500 tons, cost-saving approximately 2,000,000 yuan.
Claims (7)
1. thermal flue gas back is received and is utilized a system, comprises fluidized bed furnace, chimney, it is characterized in that: described inFluidized bed furnace is divided into two cavitys, and the bottom of two cavitys is respectively arranged with primary air fan, described fluidized bed furnaceThe top of two cavitys is respectively arranged with smoke discharging pipe, on one of them smoke discharging pipe, is disposed with heat exchangeDevice, electricity gather dust, main induced draft fan, chimney; On another smoke discharging pipe, be disposed with mixing chamber, break upMechanical, electrically gather dust, main induced draft fan, chimney; Main induced draft fan and primary air fan on a described smoke discharging pipePorch is provided with hot air duct; Between main induced draft fan on described another smoke discharging pipe and mixing chamber, establishBe equipped with smoke backflow pipeline; In described chimney, be provided with flashboard, described flashboard is by servo-electric executing agencyControl.
2. a kind of thermal flue gas back as claimed in claim 1 is received and is utilized system, it is characterized in that: described inThe pipe diameter of smoke discharging pipe and hot air duct is Ф 800mm.
3. a kind of thermal flue gas back as claimed in claim 1 is received and is utilized system, it is characterized in that: described inFeng Liang≤9.5 ten thousand m of primary air fan3/h。
4. a kind of thermal flue gas back as claimed in claim 1 is received and is utilized system, it is characterized in that: described inFeng Ya≤the 7000pa of primary air fan.
5. a kind of thermal flue gas back as claimed in claim 1 is received and is utilized system, it is characterized in that: described inServo-electric executing agency is servo electric jar.
6. a kind of thermal flue gas back as claimed in claim 1 is received and is utilized system, it is characterized in that: described inThe hot air duct place that main induced draft fan on smoke discharging pipe and primary air fan porch arrange is provided with air door, instituteState air door and be connected with electric pushrod.
7. a kind of thermal flue gas back as claimed in claim 1 is received and is utilized system, it is characterized in that: described inOn the smoke backflow pipeline arranging between main induced draft fan on smoke discharging pipe and mixing chamber, be provided with air door, instituteState air door and be connected with electric pushrod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521013555.6U CN205262225U (en) | 2015-12-09 | 2015-12-09 | Hot flue gas recycle system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521013555.6U CN205262225U (en) | 2015-12-09 | 2015-12-09 | Hot flue gas recycle system |
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| Publication Number | Publication Date |
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| CN205262225U true CN205262225U (en) | 2016-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521013555.6U Active CN205262225U (en) | 2015-12-09 | 2015-12-09 | Hot flue gas recycle system |
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| CN (1) | CN205262225U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352334A (en) * | 2015-12-09 | 2016-02-24 | 故城北新建材有限公司 | Hot smoke recycling system |
-
2015
- 2015-12-09 CN CN201521013555.6U patent/CN205262225U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352334A (en) * | 2015-12-09 | 2016-02-24 | 故城北新建材有限公司 | Hot smoke recycling system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |