CN103148498A - Circular fluidizing combustion technology for water coal slurry of agricultural straw coal - Google Patents
Circular fluidizing combustion technology for water coal slurry of agricultural straw coal Download PDFInfo
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- CN103148498A CN103148498A CN2012105344340A CN201210534434A CN103148498A CN 103148498 A CN103148498 A CN 103148498A CN 2012105344340 A CN2012105344340 A CN 2012105344340A CN 201210534434 A CN201210534434 A CN 201210534434A CN 103148498 A CN103148498 A CN 103148498A
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- Prior art keywords
- coal
- slurry
- water
- straw
- stalk
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- 239000003250 coal slurry Substances 0.000 title claims abstract description 51
- 239000003245 coal Substances 0.000 title claims abstract description 45
- 239000010902 straw Substances 0.000 title claims abstract description 39
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 23
- 238000005516 engineering process Methods 0.000 title abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract 6
- 238000009331 sowing Methods 0.000 claims abstract description 11
- 239000000725 suspension Substances 0.000 claims abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 7
- 239000002002 slurry Substances 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 21
- 239000002245 particle Substances 0.000 claims description 18
- 238000002360 preparation method Methods 0.000 claims description 10
- 239000002817 coal dust Substances 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 6
- 238000005987 sulfurization reaction Methods 0.000 claims description 2
- 239000000843 powder Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 12
- 235000013339 cereals Nutrition 0.000 description 8
- 238000005469 granulation Methods 0.000 description 8
- 230000003179 granulation Effects 0.000 description 8
- 239000000446 fuel Substances 0.000 description 7
- 238000005243 fluidization Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 239000008187 granular material Substances 0.000 description 4
- 210000004884 grey matter Anatomy 0.000 description 4
- 238000004062 sedimentation Methods 0.000 description 4
- 239000002689 soil Substances 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- WZLMXYBCAZZIRQ-UHFFFAOYSA-N [N].[P].[K] Chemical compound [N].[P].[K] WZLMXYBCAZZIRQ-UHFFFAOYSA-N 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Fertilizers (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The invention discloses a circular fluidizing combustion technology for water coal slurry of an agricultural straw coal, which comprises the following steps: 1, preparing a straw coal: using a grinder for grinding the straw into grains with grain size of 5-10mm, compressing the straw grains into a module with a density of 1.1-1.2g/cm<3>, adding coal powder and coalification agent into the compressed module for performing coalification treatment, thereby obtaining the straw coal, and 2, processing the straw coal into the water coal slurry, conveying and sowing the water coal slurry into a combustion chamber of a suspension vulcanizing combustion boiler by a slurry supplying device, combusting the water coal slurry and controlling the temperature in the combustion chamber at 920-990 DEG C. In the scheme, the agricultural straw is subjected to the coalification treatment and is made into the water coal slurry for combusting, so that the agricultural straw is comprehensively utilized, the environment is protected and the energy resource is saved.
Description
Technical field
The invention belongs to the industrial combustion field take fluid fuel as feature, is the ciculation fluidized burning process of a kind of agricultural stalk coal water-coal-slurry specifically.
Background technology
Agricultural stalk is the stem stalk of crops, in agricultural production process, after having gathered in the crops the crops such as wheat, corn, paddy, the residual root that can not eat, stem, leaf the like waste, contain the inorganic fertilizer such as abundant carbonaceous organic material and nitrogen phosphorus potassium in agricultural stalk, and sulfur content own is very low.China is a large agricultural country, agricultural straw resource is extremely abundant, according to statistics, approximately more than 600,000,000 ton of annual stalk output, containing abundant energy and a large amount of nutriments, but economy, commodity and the industrialization level of stalk comprehensive utilization are low, also have a lot of on-site incinerations to cause serious pollution to environment, and how scientific and efficient this huge renewable resource that utilizes has become a problem in the urgent need to address.
Summary of the invention
The technical problem that the present invention solves is to provide the ciculation fluidized burning process of a kind of agricultural stalk coal water-coal-slurry, realizes the purpose of comprehensive utilization agricultural stalk.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is the ciculation fluidized burning process of a kind of agricultural stalk coal water-coal-slurry, comprise the following steps: step 1, the preparation straw coal, use pulverizer with crushed stalk to the particle of granularity as 5-10mm, it is 1.1-1.2g/cm that stalk particle is compressed to density
3Module, add coal dust and coalification agent for the module of compression and carry out coalification and process, be made into straw coal; Step 2 is processed into water-coal-slurry with straw coal, and with burning in the combustion chamber of for slurry equipment, water-coal-slurry being carried and sowing suspension sulfuration burning boiler, the temperature in the combustion chamber is controlled at 920-990 ℃.
Compared to the prior art, process by agricultural stalk being carried out coalification in this programme, and make water-coal-slurry and burn, agricultural stalk is fully utilized not only protection of the environment but also energy savings.
The granularity of described particle is 6-8mm;
The density of described module is 1.16g/ cm
3
Temperature in described combustion chamber is controlled to be 970 ℃.
In above improvement project, optimized combustion efficiency, the utilization rate of stalk has been improved significantly.
The specific embodiment
Embodiment 1
The ciculation fluidized burning process of a kind of agricultural stalk coal water-coal-slurry comprises the following steps: step 1, the preparation straw coal, use pulverizer with crushed stalk to the particle of granularity as 5mm, it is 1.1g/cm that stalk particle is compressed to density
3Module, add coal dust and coalification agent for the module of compression and carry out coalification and process, be made into straw coal; Step 2 with the straw coal of making, is made into the straw coal water-coal-slurry according to the preparation method of water-coal-slurry.With above-mentioned water-coal-slurry by be arranged on the granulation sowing device on water-coal-slurry suspension fluidisation burning boiler for slurry equipment; Granulation sowing device is evenly sowed water-coal-slurry in the combustion chamber; After becoming hot flue gas from a wind of high pressure positive blower by igniter heats, the bed material is heated to 400 ℃, and by air distribution plate, bed is expected that media and straw coal water-coal-slurry sow the cluster of grains of formation and upwards blow afloat, form fluidized state; Sow the cluster of grains of the water-coal-slurry on bed material media and separate out rapidly moisture under the heating of fluidized state bed material media, thus ignition, and its ignition temperature reaches 920 ℃; Due to the characteristic of fuel, after fluidized bed combustion, the part granule enters secondary burning chamber, fully burn, and the grey matter sedimentation, larger particles is burning again in separator returns to stove.
Embodiment 2
The ciculation fluidized burning process of a kind of agricultural stalk coal water-coal-slurry comprises the following steps: step 1, the preparation straw coal, use pulverizer with crushed stalk to the particle of granularity as 10mm, it is 1.2g/cm that stalk particle is compressed to density
3Module, add coal dust and coalification agent for the module of compression and carry out coalification and process, be made into straw coal; Step 2 with the straw coal of making, is made into the straw coal water-coal-slurry according to the preparation method of water-coal-slurry.With above-mentioned water-coal-slurry by be arranged on the granulation sowing device on water-coal-slurry suspension fluidisation burning boiler for slurry equipment; Granulation sowing device is evenly sowed water-coal-slurry in the combustion chamber; After becoming hot flue gas from a wind of high pressure positive blower by igniter heats, the bed material is heated to 500 ℃, and by air distribution plate, bed is expected that media and straw coal water-coal-slurry sow the cluster of grains of formation and upwards blow afloat, form fluidized state; Sow the cluster of grains of the water-coal-slurry on bed material media and separate out rapidly moisture under the heating of fluidized state bed material media, thus ignition, and its ignition temperature reaches 990 ℃; Due to the characteristic of fuel, after fluidized bed combustion, the part granule enters secondary burning chamber, fully burn, and the grey matter sedimentation, larger particles is burning again in separator returns to stove.
Embodiment 3
The ciculation fluidized burning process of a kind of agricultural stalk coal water-coal-slurry comprises the following steps: step 1, the preparation straw coal, use pulverizer with crushed stalk to the particle of granularity as 5mm, it is 1.3g/cm that stalk particle is compressed to density
3Module, add coal dust and coalification agent for the module of compression and carry out coalification and process, be made into straw coal; Step 2 with the straw coal of making, is made into the straw coal water-coal-slurry according to the preparation method of water-coal-slurry.With above-mentioned water-coal-slurry by be arranged on the granulation sowing device on water-coal-slurry suspension fluidisation burning boiler for slurry equipment; Granulation sowing device is evenly sowed water-coal-slurry in the combustion chamber; After becoming hot flue gas from a wind of high pressure positive blower by igniter heats, the bed material is heated to 600 ℃, and by air distribution plate, bed is expected that media and straw coal water-coal-slurry sow the cluster of grains of formation and upwards blow afloat, form fluidized state; Sow the cluster of grains of the water-coal-slurry on bed material media and separate out rapidly moisture under the heating of fluidized state bed material media, thus ignition, and its ignition temperature reaches 940 ℃; Due to the characteristic of fuel, after fluidized bed combustion, the part granule enters secondary burning chamber, fully burn, and the grey matter sedimentation, larger particles is burning again in separator returns to stove.
Embodiment 4
The ciculation fluidized burning process of a kind of agricultural stalk coal water-coal-slurry, comprise the following steps: step 1, the preparation straw coal, use pulverizer with crushed stalk to the particle of granularity as 6mm, stalk particle is compressed to the module that density is 1.6g/cm3, carry out the coalification processing for module interpolation coal dust and the coalification agent of compression, be made into straw coal; Step 2 with the straw coal of making, is made into the straw coal water-coal-slurry according to the preparation method of water-coal-slurry.With above-mentioned water-coal-slurry by be arranged on the granulation sowing device on water-coal-slurry suspension fluidisation burning boiler for slurry equipment; Granulation sowing device is evenly sowed water-coal-slurry in the combustion chamber; After becoming hot flue gas from a wind of high pressure positive blower by igniter heats, the bed material is heated to 400 ℃, and by air distribution plate, bed is expected that media and straw coal water-coal-slurry sow the cluster of grains of formation and upwards blow afloat, form fluidized state; Sow the cluster of grains of the water-coal-slurry on bed material media and separate out rapidly moisture under the heating of fluidized state bed material media, thus ignition, and its ignition temperature reaches 970 ℃; Due to the characteristic of fuel, after fluidized bed combustion, the part granule enters secondary burning chamber, fully burn, and the grey matter sedimentation, larger particles is burning again in separator returns to stove.
Embodiment 1,2,3 and 4 can both well reach the purpose of processing agricultural stalk, and combustion rate is comparatively desirable, and wherein the effect of embodiment 4 is best.
This technology directly effectively utilizes discarded stalk to be fuel, compresses stalk by coalification and directly drops into the heat production of burning in suspension fluidisation burning boiler, and combustion product is further developed.Whole technology to agricultural stalk realized efficiently, the environmental protection utilization, the consumption of having saved the fossil fuels such as coal, environmental pollution and the wasting of resources of having avoided traditional on-site incineration to bring.Because stalk is the huge renewable resource of quantity, this technology can realize the industrialization running of straw burning, as the main fuel of spot heating or large-sized boiler generating, can realize the fundamental requirement of science sustainable development.Consider existing stalk treatment process and process present situation, also have a large amount of stalks to be utilized effectively, opposite on causing the impact on the farming progress, to occupying of a large amount of soils, to having a strong impact on of environment.Adopt to collect-make straw coal-burning heating-grey matter and return to this circulation pattern processing of soil fertilizing, the Treating straw amount is large, and processing mode is flexible, can also produce huge economic benefit and social benefit, has very large development prospect.
Claims (4)
1. ciculation fluidized burning process of agricultural stalk coal water-coal-slurry is characterized in that: comprise the following steps: step 1, the preparation straw coal, use pulverizer with crushed stalk to the particle of granularity as 5-10mm, it is 1.1-1.2g/cm that stalk particle is compressed to density
3Module, add coal dust and coalification agent for the module of compression and carry out coalification and process, be made into straw coal; Step 2 is processed into water-coal-slurry with straw coal, and with burning in the combustion chamber of for slurry equipment, water-coal-slurry being carried and sowing suspension sulfuration burning boiler, the temperature in the combustion chamber is controlled at 920-990 ℃.
2. the ciculation fluidized burning process of agricultural stalk coal water-coal-slurry according to claim 1, it is characterized in that: the granularity of described particle is 6-8mm.
3. the ciculation fluidized burning process of agricultural stalk coal water-coal-slurry according to claim 1, it is characterized in that: the density of described module is 1.16g/ cm
3
4. the ciculation fluidized burning process of agricultural stalk coal water-coal-slurry according to claim 1, it is characterized in that: the temperature in described combustion chamber is controlled to be 970 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210534434.0A CN103148498B (en) | 2012-12-12 | 2012-12-12 | The ciculation fluidized burning process of agricultural stalk coal water-coal-slurry |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210534434.0A CN103148498B (en) | 2012-12-12 | 2012-12-12 | The ciculation fluidized burning process of agricultural stalk coal water-coal-slurry |
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| CN103148498A true CN103148498A (en) | 2013-06-12 |
| CN103148498B CN103148498B (en) | 2016-03-09 |
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| CN201210534434.0A Expired - Fee Related CN103148498B (en) | 2012-12-12 | 2012-12-12 | The ciculation fluidized burning process of agricultural stalk coal water-coal-slurry |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103528049A (en) * | 2013-10-14 | 2014-01-22 | 上海交通大学 | Biomass-coal water slurry co-fired organic working medium boiler |
| CN108264920A (en) * | 2017-12-26 | 2018-07-10 | 北京三聚环保新材料股份有限公司 | A kind of one kettle way liquefaction process of coal and biomass |
| CN109111966A (en) * | 2018-09-06 | 2019-01-01 | 鄂尔多斯应用技术学院 | A kind of Anthracite coal water slurry for coal gasification and preparation method thereof |
| US10975312B2 (en) | 2017-12-25 | 2021-04-13 | Beijing Sanju Environmental Protection & New Materials Co., Ltd | Process for one-pot liquefaction of biomass or coal and biomass |
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| CN101392912A (en) * | 2008-10-31 | 2009-03-25 | 北京博奇电力科技有限公司 | Fluidized bed incinerator method for organic waste liquid and garbage |
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| CN201429074Y (en) * | 2009-06-11 | 2010-03-24 | 青岛特利尔水煤浆锅炉有限公司 | Improved coal water slurry circulating fluidization-suspension combustion apparatus |
| CN101760268A (en) * | 2010-01-20 | 2010-06-30 | 福州大学 | Biomass coal pulp prepared by water hyacinth and anthracite |
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2012
- 2012-12-12 CN CN201210534434.0A patent/CN103148498B/en not_active Expired - Fee Related
Patent Citations (4)
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| CN101392912A (en) * | 2008-10-31 | 2009-03-25 | 北京博奇电力科技有限公司 | Fluidized bed incinerator method for organic waste liquid and garbage |
| CN101551108A (en) * | 2009-05-11 | 2009-10-07 | 东南大学 | Incineration treatment method of municipal sludge and device thereof |
| CN201429074Y (en) * | 2009-06-11 | 2010-03-24 | 青岛特利尔水煤浆锅炉有限公司 | Improved coal water slurry circulating fluidization-suspension combustion apparatus |
| CN101760268A (en) * | 2010-01-20 | 2010-06-30 | 福州大学 | Biomass coal pulp prepared by water hyacinth and anthracite |
Non-Patent Citations (1)
| Title |
|---|
| 刘玉华: "天津秸秆固化燃料技术现状与应用前景", 《资源节约与环保》, no. 3, 31 March 2012 (2012-03-31) * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103528049A (en) * | 2013-10-14 | 2014-01-22 | 上海交通大学 | Biomass-coal water slurry co-fired organic working medium boiler |
| CN103528049B (en) * | 2013-10-14 | 2016-02-10 | 上海交通大学 | The organic working medium boiler of living beings-water-coal-slurry multifuel combustion |
| US10975312B2 (en) | 2017-12-25 | 2021-04-13 | Beijing Sanju Environmental Protection & New Materials Co., Ltd | Process for one-pot liquefaction of biomass or coal and biomass |
| CN108264920A (en) * | 2017-12-26 | 2018-07-10 | 北京三聚环保新材料股份有限公司 | A kind of one kettle way liquefaction process of coal and biomass |
| CN109111966A (en) * | 2018-09-06 | 2019-01-01 | 鄂尔多斯应用技术学院 | A kind of Anthracite coal water slurry for coal gasification and preparation method thereof |
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| Publication number | Publication date |
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| CN103148498B (en) | 2016-03-09 |
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Address after: Shinan District 266071 Shandong city of Qingdao province Yinchuan road 67, block B Applicant after: QINGDAO CLEAR ENVIRONMENTAL PROTECTION CO.,LTD. Address before: Shinan District 266071 Shandong city of Qingdao province Yinchuan road 67, block B Applicant before: Qingdao Clear Environmental Protection Boiler Engineering Co.,Ltd. |
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Denomination of invention: Circulating fluidized combustion technology of agricultural straw coal water slurry Effective date of registration: 20210520 Granted publication date: 20160309 Pledgee: Haier financial factoring (Chongqing) Co.,Ltd. Pledgor: Qingdao Trier Technology Co.,Ltd. Registration number: Y2021370010023 |
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