CN204529765U - A kind of biomass gasification fired heating system for Industrial Stoves - Google Patents
A kind of biomass gasification fired heating system for Industrial Stoves Download PDFInfo
- Publication number
- CN204529765U CN204529765U CN201420819512.6U CN201420819512U CN204529765U CN 204529765 U CN204529765 U CN 204529765U CN 201420819512 U CN201420819512 U CN 201420819512U CN 204529765 U CN204529765 U CN 204529765U
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- kiln
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- 239000002028 Biomass Substances 0.000 title claims abstract description 30
- 238000002309 gasification Methods 0.000 title claims abstract description 23
- 238000010438 heat treatment Methods 0.000 title claims abstract description 22
- 239000007789 gas Substances 0.000 claims abstract description 71
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000003546 flue gas Substances 0.000 claims abstract description 26
- 238000002485 combustion reaction Methods 0.000 claims abstract description 23
- 238000000197 pyrolysis Methods 0.000 claims abstract description 23
- 238000006243 chemical reaction Methods 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000002918 waste heat Substances 0.000 claims description 15
- 230000003647 oxidation Effects 0.000 claims description 10
- 238000007254 oxidation reaction Methods 0.000 claims description 10
- 230000009467 reduction Effects 0.000 claims description 10
- 239000002737 fuel gas Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 8
- 230000006872 improvement Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000003610 charcoal Substances 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000006057 reforming reaction Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000008234 soft water Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- 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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
本实用新型涉及一种用于工业窑炉的生物质气化燃烧供热系统，包括：窑炉，设有烟气出口和燃烧入口；热解器，设有加热通道、热解气出口和物料出口，所述加热通道入口连接窑炉的烟气出口；内含反应区的气化炉，所述热解气出口通过管道通至反应区，所述气化炉的物料入口通过管道连接热解器的物料出口，所述气化炉的燃气出口通至窑炉的燃烧入口；以及换热器，所述换热器包括相互连通的高温入口、低温出口，以及相互连通的低温入口、高温出口，所述高温入口连接窑炉的气体出口，所述高温出口通过管道通至反应区中。本系统提高了热利用效率，使生物质燃气能稳定高效供热于工业窑炉。本实用新型可应用于生物质燃气对窑炉供热。
The utility model relates to a biomass gasification combustion heating system for industrial kilns, comprising: a kiln with a flue gas outlet and a combustion inlet; a pyrolyzer with a heating channel, a pyrolysis gas outlet and a material Outlet, the inlet of the heating channel is connected to the flue gas outlet of the kiln; the gasification furnace containing the reaction zone, the pyrolysis gas outlet is connected to the reaction zone through a pipeline, and the material inlet of the gasifier is connected to the pyrolysis furnace through a pipeline. The material outlet of the gasifier, the gas outlet of the gasifier is connected to the combustion inlet of the kiln; and the heat exchanger, the heat exchanger includes a high-temperature inlet and a low-temperature outlet connected to each other, and a low-temperature inlet and a high-temperature outlet connected to each other , the high-temperature inlet is connected to the gas outlet of the kiln, and the high-temperature outlet leads to the reaction zone through a pipeline. This system improves the heat utilization efficiency, so that the biomass gas can be stably and efficiently supplied to the industrial kiln. The utility model can be applied to heat supply of kilns by biomass gas.
Description
Technical field
The utility model relates to gasifying biomass and combustion field, particularly a kind of biomass gasification fired heating system for Industrial Stoves.
Background technology
Biological fuel gas is the gas that biomass are transformed by pyrolytic gasification reaction, is that the higher-grade belonging to biomass energy utilizes.Compare solid biomass, the use range of biological fuel gas has been widened in the change of Energy harvesting form, can be widely used in Industrial Stoves field, as molten aluminium stove, steel annealing stove, glass furnace etc.In addition, due to the characteristic of biomass energy itself, biological fuel gas is clean with it, burning pollutant discharges few advantage, can effectively substitute conventional fossil fuel and be applied in Industrial Stoves field, meet the environmental requirement of this field to fuel, effectively alleviate environmental protection pressure.
Compare traditional gas fossil oil, as Sweet natural gas, oil liquefied gas etc., biological fuel gas belongs to fuel gas with low heat value in one, and calorific value usually can at 4 ~ 12 MJ/Nm
3regulate.And Industrial Stoves carry out the operations such as melting, calcining, thermal treatment usually under the high temperature conditions, need the fire box temperature of maintenance higher, usually more than 1000 DEG C.On the one hand, the flue-gas temperature that Industrial Stoves produce is very high, carries quite a few heat; On the other hand, in employing, low heat value biomass gas heating is in Industrial Stoves, and the exhaust gas volumn of generation is large, and rate of heat transfer is comparatively slow, and temperature is subject to a definite limitation.Therefore, how to be coupled from gasification, and combustion whole system aspect, make full use of each several part heat, improve the overall thermal utilising efficiency of biological fuel gas in Industrial Stoves heat supplying process, can stability and high efficiency coupling Industrial Stoves processing requirement, being the emphasis that biological fuel gas Industrial Stoves heat supply investigation and application is paid close attention to, is also the necessary factor of biological fuel gas Industrial Stoves heat supply large-scale promotion.
Utility model content
In order to overcome above-mentioned technical problem, the purpose of this utility model is to provide a kind of biomass gasification fired heating system for Industrial Stoves, thus improves efficiency of utilization.
The technical scheme that the utility model adopts is:
For a biomass gasification fired heating system for Industrial Stoves, comprising:
Kiln, is provided with exhanst gas outlet and combustion inlet;
Pyrolyzer, is provided with heat tunnel, pyrolysis gas outlet and material outlet, and described heat tunnel entrance connects the exhanst gas outlet of kiln;
The vapourizing furnace in inclusive reaction district, described pyrolysis gas outlet passes to reaction zone by pipeline, and the material inlet of described vapourizing furnace connects the material outlet of pyrolyzer by pipeline, the gas outlet of described vapourizing furnace passes to the combustion inlet of kiln;
And interchanger, described interchanger comprises the high temperature inlet, the low-temperature outlet that are interconnected, and the low-temperature inlet be interconnected, hot outlet, and described high temperature inlet connects the pneumatic outlet of kiln, and described hot outlet is passed in reaction zone by pipeline.
As the further improvement of technique scheme, described reaction zone comprises top-down reduction zone and oxidation zone, and described pyrolysis gas outlet and hot outlet are connected to oxidation zone.
As the further improvement of technique scheme, the low-temperature outlet of described interchanger is connected to waste heat boiler.
As the further improvement of technique scheme, described waste heat boiler is provided with vapour outlet, and described vapour outlet connects the reduction zone of vapourizing furnace by pipeline.
As the further improvement of technique scheme, the outlet of the heat tunnel of described pyrolyzer is connected to the entrance of waste heat boiler by pipeline.
As the further improvement of technique scheme, the combustion inlet place of described kiln is provided with gas burner, and described gas burner connects the gas outlet of vapourizing furnace.
As the further improvement of technique scheme, described gas burner is provided with combustion-supporting gas entrance, and the hot outlet of described interchanger connects combustion-supporting gas entrance by pipeline.
The beneficial effects of the utility model are: biomass burning combustion gas is produce high-temperature flue gas after kiln heat supply, because containing a large amount of waste heat in high-temperature flue gas, a part for high-temperature flue gas is passed into after pyrolysis first being forced to biomass in pyrolyzer and gasify in vapourizing furnace, reduce the tar ingredients in biological fuel gas, improve system stability, high-temperature flue gas a part of in addition and gaseous media carry out heat exchange in interchanger, gaseous media is heated, the gaseous media of high temperature passes into the reaction zone of Reaktionsofen afterwards, improve the degree of oxidation of gasification and combustion processes, in general, native system improves efficiency of utilization, make the heat supply of biological fuel gas energy stability and high efficiency in Industrial Stoves.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the schematic diagram of interchanger.
Embodiment
The biomass gasification fired heating system for Industrial Stoves as shown in Figure 1, comprises kiln 1, pyrolyzer 2, vapourizing furnace 3, interchanger 4 and waste heat boiler 5.
Kiln 1 is provided with exhanst gas outlet 11 and combustion inlet, after biomass fuel gas firing, produces a large amount of energy heat supplies in kiln 1, and the high-temperature flue gas that kiln 1 produces is discharged from exhanst gas outlet 11.
Pyrolyzer 2 is provided with heat tunnel, pyrolysis gas outlet 21 and material outlet 22.Heat tunnel is used for passing into high-temperature gas, utilizes the heat of high-temperature flue gas to carry out pressure pyrolysis to the biomass of inside.The entrance of heat tunnel connects the exhanst gas outlet 11 of kiln 1, thus directly uses the high-temperature flue gas of kiln 1 as thermal source.Force pyrolysis to produce pyrolysis gas and charcoal, pyrolysis gas is discharged from pyrolysis gas outlet 21, and pyrolysis gas outlet 21 temperature controls more than 450 DEG C, and charcoal is discharged from material outlet 22.
Vapourizing furnace 3 is provided with material inlet, gas outlet, and its inside is also provided with reaction zone.In reaction zone, product---pyrolysis gas and the charcoal of main process pyrolyzer 2, carry out gasification reaction, produce the biological fuel gas of high temperature in stove.The pyrolysis gas outlet 21 of pyrolyzer 2 passes to reaction zone by pipeline for this reason, for reaction zone provides pyrolysis gas; The material inlet of vapourizing furnace 3 connects the material outlet 22 of pyrolyzer 2, the charcoal produced receive biomass pyrolytic from pyrolyzer 2 after by pipeline; Gas outlet passes to the combustion inlet of kiln 1, for kiln 1 provides the high-temperature biomass gas of burning.
Interchanger 4 is air preheater in the present embodiment.As shown in Figure 2, interchanger 4 is provided with the high temperature inlet 41, the low-temperature outlet 42 that are interconnected, thus forms flue gas heat exchange passage; Also be provided with the low-temperature inlet 44, the hot outlet 43 that are interconnected, thus form gaseous media heat exchanger channels.High temperature inlet 41 connects the exhanst gas outlet 11 of kiln 1, and low-temperature inlet 44 is connected with gas blower 7 by pipeline, and hot outlet 43 is passed in reaction zone by pipeline.High-temperature flue gas enters flue gas heat exchange passage by high temperature inlet 41, gaseous media enters gaseous media heat exchanger channels by low-temperature inlet 44, high-temperature flue gas and gaseous media generation heat exchange afterwards, high-temperature flue-gas reduces and becomes the lower middle temperature flue gas of temperature, cryogenic gas medium heats up into high temperature gas medium, and enters reaction zone.In embodiment, gaseous media is air, oxygen enrichment.Gaseous media is in the temperature of low-temperature inlet 44 at 25 ~ 30 DEG C, and the temperature of high temperature gas medium is at 600 ~ 800 DEG C.
By above-mentioned structure, the heat of biological fuel gas is used for kiln 1, and kiln 1 heat produced in high-temperature flue gas reasonably feeds back in pyrolyzer 2 and vapourizing furnace 3, and the heat in system is reasonably utilized, and is conducive to the efficiency of utilization of raising system.
As shown in Figure 1, in the present embodiment, reaction zone comprises top-down reduction zone 31 and oxidation zone 32, and pyrolysis gas outlet 21 and hot outlet 43 are all connected to oxidation zone 32.Therefore, pyrolysis gas and high temperature gas medium first burn in oxidation zone 32, and heat supply is in reduction zone 31.Pass into water vapor in reduction zone 31, burning in the charcoal after water vapor, pyrolysis and oxidation zone 32, the gas produced reduces in reduction zone 31, reforming reaction, and final production high-temperature biomass gas, temperature is more than 350 DEG C.
In the present embodiment, the low-temperature outlet 42 of interchanger 4 is connected to waste heat boiler 5, thus makes full use of the heat of middle temperature flue gas.Preferably, waste heat boiler 5 is provided with water inlet and vapour outlet 51, soft water enters waste heat boiler 5 from water inlet, water vapor is flashed to by after middle temperature flue gas heating, because vapour outlet 51 is by the reduction zone 31 of pipeline connection vapourizing furnace 3, therefore the water vapor generated in waste heat boiler 5 can be directly used in the reforming reaction of reduction zone 31, and the heat of middle temperature flue gas is also used appropriately.Exception, waste heat boiler 5 is an external induced draft fan 8 also, for the gas flow of whole system provides power.
Preferably, the outlet of the heat tunnel of pyrolyzer 2 is connected to the entrance of waste heat boiler 5 by pipeline.High-temperature flue gas is to after the biomass heating in pyrolyzer 2, and temperature reduces, and in discharging with interchanger 4, warm flue gas enters waste heat boiler 5 after converging jointly.
In embodiment, the combustion inlet place of kiln 1 is provided with gas burner 6, and gas burner 6 connects the gas outlet of vapourizing furnace 3, in order to the biological fuel gas of preparation in combustion gasification stove 3.Gas burner 6 is provided with combustion-supporting gas entrance 61, the hot outlet 43 of interchanger 4 connects combustion-supporting gas entrance 61 by pipeline, in high temperature gas medium, a part enters oxidation zone 32, another part enters gas burner 6 from combustion-supporting gas entrance 61, for the burning of biological fuel gas provides combustion-supporting gas.
In the present embodiment, the pipeline of various gas conveying all takes Insulation, makes surface temperature be no more than 70 DEG C, as the pipeline of high-temperature flue gas, the pipeline etc. of high temperature gas medium.
Certainly, the utility model is not limited to above-mentioned embodiment, those of ordinary skill in the art also can make equivalent variations or replacement under the prerequisite without prejudice to the utility model spirit, and these equivalent modification or replacement are all included in the application's claim limited range.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420819512.6U CN204529765U (en) | 2014-12-18 | 2014-12-18 | A kind of biomass gasification fired heating system for Industrial Stoves |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420819512.6U CN204529765U (en) | 2014-12-18 | 2014-12-18 | A kind of biomass gasification fired heating system for Industrial Stoves |
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| Publication Number | Publication Date |
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| CN204529765U true CN204529765U (en) | 2015-08-05 |
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| CN201420819512.6U Expired - Lifetime CN204529765U (en) | 2014-12-18 | 2014-12-18 | A kind of biomass gasification fired heating system for Industrial Stoves |
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| CN (1) | CN204529765U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571337A (en) * | 2016-01-27 | 2016-05-11 | 广东工业大学 | Energy-saving industrial furnace adopting biomass gasification combustion power generation system |
| CN107421320A (en) * | 2017-08-15 | 2017-12-01 | 安徽卓煌机械设备有限公司 | A kind of biomass gasification fired energy supply cement rotary kiln |
| CN108668911A (en) * | 2018-05-19 | 2018-10-19 | 潘礼斌 | It is a kind of using excrement as the pig house temperature-increasing system of fuel |
-
2014
- 2014-12-18 CN CN201420819512.6U patent/CN204529765U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571337A (en) * | 2016-01-27 | 2016-05-11 | 广东工业大学 | Energy-saving industrial furnace adopting biomass gasification combustion power generation system |
| CN105571337B (en) * | 2016-01-27 | 2019-06-14 | 广东工业大学 | Energy-saving industrial kiln using biomass gasification combustion power generation system |
| CN107421320A (en) * | 2017-08-15 | 2017-12-01 | 安徽卓煌机械设备有限公司 | A kind of biomass gasification fired energy supply cement rotary kiln |
| CN108668911A (en) * | 2018-05-19 | 2018-10-19 | 潘礼斌 | It is a kind of using excrement as the pig house temperature-increasing system of fuel |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150805 |
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| CX01 | Expiry of patent term |