CN103375974A - Novel hot air drying system for preparing power - Google Patents
Novel hot air drying system for preparing power Download PDFInfo
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- CN103375974A CN103375974A CN2013101543104A CN201310154310A CN103375974A CN 103375974 A CN103375974 A CN 103375974A CN 2013101543104 A CN2013101543104 A CN 2013101543104A CN 201310154310 A CN201310154310 A CN 201310154310A CN 103375974 A CN103375974 A CN 103375974A
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Abstract
The invention discloses a novel hot air drying system for preparing powder and belongs to the field of powder production. The noel hot air drying system comprises a high-temperature combustion chain hot air stove, a tail gas and hot air mixing station, a heat exchanger and a gas-water separator. Coal, biomass straw or other solid fuel is conveyed into a high-temperature combustion chamber of the hot air stove through a grate for combustion. A mixing chamber is arranged in the hot air stove, cold air is mixed with high-temperature smoke generated from combustion and then is mixed with dried tail gas in the mixing station, thereby hot air appropriate in temperature and flow is formed for drying of a powder milling machine; the tail gas exchanges heat with the cold water to generate hot water; condensate water in the tail gas after heat exchange is separated by the gas-water separator, so that dry tail gas is formed and recycled; the novel hot air drying system for preparing the powder has the advantages of wide fuel applicability, high combustion efficiency and heat efficiency, low pollutant discharge and the like.
Description
Technical field:
The invention belongs to the powder production technical field, particularly prepare the hot air drying system that powder is used.
Background technology:
In the generative process such as the powder such as slag micropowder or cement, all have hot air drying system, through the market survey analysis, the hot-blast stove that uses in this hot-air system at present is the coal dust fluidized bed furnace, can only use the higher coal of the more expensive calorific value of price, coal cinder need to be ground to form coal dust, dust is larger; Hot-blast stove is air flow bed, and ignition trigger is difficulty relatively, needs diesel oil to atomize the combustion preheater burner hearth to uniform temperature by burner; Coal dust is fully burning not, and the body of heater rear section is door opened, and cold wind enters body of heater, and both are larger on the thermal efficiency impact of body of heater, coking phenomenon occurs easily; Behind the slag in the heated-air drying grinding machine, behind the control techniques such as dedusting, be mainly the mixture of saturated water at low temperature steam and air, its temperature is about 90 ℃, directly this partial tail gas is drained in the atmosphere, not only cause atmosphere pollution, also caused the loss of heat.There is small part powder generating process to utilize sub-fraction tail gas, directly with after the high-temperature flue gas of hot-blast stove discharge mixes pass into grinding machine, but tail gas after filtering is to have high-moisture, the humidity of hot blast is increased, affect the drying effect of hot blast, do not had the effect of remarkable consumption reduction.Most of tail gas directly is thrown in the atmosphere by chimney, and from the appearance, a large amount of tiny drops of waters is " smog " shape, and is very similar to the waste gas of industrial discharging.And temperature is lower, and condensation is more violent, " smog " shape droplet of generation the more, the discharge capacity of " smog " is larger, and enterprise's cleaner production is caused very large negative effect.In addition, water at low temperature steam contains a large amount of waste heats, and the heating effect atmosphere pollution by air themperature is raise both caused thermal pollution to environment, and causes the waste of mass energy.
Summary of the invention:
In order to overcome the problem of the hot air drying system that present above-mentioned preparation powder uses, the present invention designs a kind of novel preparation powder hot air drying system.The object of the present invention is achieved like this:
A kind of novel preparation powder hot air drying system comprises high-temp combustion chain hot-blast stove, tail gas hot blast mixing station, heat exchanger, moisture trap; Hot-blast stove is that high-temp combustion chain hot-blast stove is the fire grate fixed-bed type, is equipped with to make that heat is concentrated, the burning cover of uniform temperature fields.Coal, biomass straw or other solid fuels are delivered to hot-blast stove high-temp combustion Indoor Combustion by fire grate.
Feature also is:
Described a kind of novel preparation powder mixes cold wind with being provided with mixing chamber in the hot-blast stove in the hot air drying system with the high-temperature flue gas that burning produces, reduce the hot-blast outlet temperature, thereby reduces the insulation requirement of hot blast pipeline.
Described a kind of novel preparation powder is used in the hot air drying system tail gas and cold water heat exchange, generating hot water; Condensed water in the tail gas after the heat exchange separates through moisture trap, and dry tail gas is delivered to the tail gas hot blast and mixed the station mixing, and the hot blast that formation temperature and flow suit is for the powder the mill dries.
The invention has the beneficial effects as follows:
(1), adopt burning cover can make in the ability active set of burning, can improve reaction speed, expand the smooth combustion scope, increase the stability of burning, for low heat value or low concentration fuel combustion, has certain applicability, can use inferior fuel, comprise low-calorie colm, living beings etc., to the size of fuel without harsh requirement, and the bed furnace grate furnace is lighted a fire, restarting is easy, can cancel coal mill system and the auxiliary fuel system at present scene.
(2), adopt efficient condenser, reclaim waste heat in the tail gas with cold water, the hot water of generation can be had a bath for the workman; Can make on the other hand the steam-condensation in the tail gas, the flue gas of the drying that forms by moisture trap is made hot air circulation and is used, and can improve drying effect and the thermal efficiency, enters tail gas the atmosphere also without " smog " from chimney, the realization cleaner production.
Description of drawings:
Fig. 1 is the flow chart of embodiment of the present invention.
The specific embodiment:
Further specify the specific embodiment that a kind of novel preparation powder of the present invention is used hot air drying system below in conjunction with accompanying drawing.
A kind of novel preparation powder hot air drying system comprises high-temp combustion chain hot-blast stove, tail gas hot blast mixing station, heat exchanger, moisture trap; Hot-blast stove is that high-temp combustion chain hot-blast stove is the fire grate fixed-bed type, is equipped with to make that heat is concentrated, the burning cover of uniform temperature fields.Coal, biomass straw or other solid fuels are delivered to hot-blast stove high-temp combustion Indoor Combustion by fire grate.Be provided with mixing chamber in the hot-blast stove, cold wind is mixed with the high-temperature flue gas that burning produces, reduce the hot-blast outlet temperature to 500-700 ℃.Mixing the station mixing with dried tail gas again, the hot blast temperature that the formation user needs is for the powder the mill dries, and the flow of hot blast can be controlled by control valve.Tail gas and cold water heat exchange, generating hot water; Condensed water in the tail gas after the heat exchange separates through moisture trap, forms dry circulation of tail gas and uses.
Claims (3)
1. a novel preparation powder hot air drying system is characterized in that comprising high-temp combustion chain hot-blast stove, tail gas hot blast mixing station, heat exchanger, moisture trap; Hot-blast stove is that high-temp combustion chain hot-blast stove is the fire grate fixed-bed type, is equipped with to make that heat is concentrated, the burning cover of uniform temperature fields.Coal, biomass straw or other solid fuels are delivered to hot-blast stove high-temp combustion Indoor Combustion by fire grate.
2. a kind of novel preparation powder hot air drying system according to claim 1 is characterized in that being provided with in the hot-blast stove mixing chamber, and cold wind is mixed with the high-temperature flue gas that burning produces, and reduces the hot-blast outlet temperature, thereby reduces the insulation requirement of hot blast pipeline.
3. a kind of novel preparation powder hot air drying system according to claim 1 is characterized in that tail gas and cold water heat exchange, generating hot water; Condensed water in the tail gas after the heat exchange separates through moisture trap, and dry tail gas is delivered to the tail gas hot blast and mixed the station mixing, and the hot blast that formation temperature and flow suit is for the powder the mill dries.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101543104A CN103375974A (en) | 2013-04-18 | 2013-04-18 | Novel hot air drying system for preparing power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101543104A CN103375974A (en) | 2013-04-18 | 2013-04-18 | Novel hot air drying system for preparing power |
Publications (1)
| Publication Number | Publication Date |
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| CN103375974A true CN103375974A (en) | 2013-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013101543104A Pending CN103375974A (en) | 2013-04-18 | 2013-04-18 | Novel hot air drying system for preparing power |
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| CN (1) | CN103375974A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534546A (en) * | 2014-12-18 | 2015-04-22 | 鞍山钢铁集团公司矿渣开发公司 | Slag powder production line hot air sensible heat recycling method and device |
| CN106766846A (en) * | 2016-11-24 | 2017-05-31 | 新奥泛能网络科技股份有限公司 | A kind of heat recovery system |
| CN107790275A (en) * | 2017-10-19 | 2018-03-13 | 常熟凯弘节能环保科技有限公司 | Flue gas recirculation pipe with cool-down dehumidification function |
| CN108160443A (en) * | 2017-11-30 | 2018-06-15 | 北京国电富通科技发展有限责任公司 | A kind of wet stock sorting unit |
| CN109489357A (en) * | 2018-10-30 | 2019-03-19 | 中南林业科技大学 | Joint for timber is mostly used dry kiln and its application method |
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| JP2005140484A (en) * | 2003-11-04 | 2005-06-02 | Yasunobu Yoshida | Method for circulation type drying and pulverizing fuel system of waste, and device therefor |
| CN201217675Y (en) * | 2008-07-04 | 2009-04-08 | 沈丽 | Thermal treatment control device |
| CN101532769A (en) * | 2009-04-14 | 2009-09-16 | 福建省南平元力活性炭有限公司 | New dry heat reutilization method |
| CN201459090U (en) * | 2009-06-10 | 2010-05-12 | 煤炭科学研究总院 | Pulverized coal preparation system |
| JP2011127270A (en) * | 2009-12-15 | 2011-06-30 | Nikko Co Ltd | Asphalt plant |
| CN202253664U (en) * | 2011-09-14 | 2012-05-30 | 邢献军 | High-temperature garbage incinerator |
| CN102580705A (en) * | 2012-02-29 | 2012-07-18 | 上海克硫环保科技股份有限公司 | Comprehensive heat energy utilizing type active coke purifying and regenerating process system and active coke purifying and regenerating process method |
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- 2013-04-18 CN CN2013101543104A patent/CN103375974A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005140484A (en) * | 2003-11-04 | 2005-06-02 | Yasunobu Yoshida | Method for circulation type drying and pulverizing fuel system of waste, and device therefor |
| CN201217675Y (en) * | 2008-07-04 | 2009-04-08 | 沈丽 | Thermal treatment control device |
| CN101532769A (en) * | 2009-04-14 | 2009-09-16 | 福建省南平元力活性炭有限公司 | New dry heat reutilization method |
| CN201459090U (en) * | 2009-06-10 | 2010-05-12 | 煤炭科学研究总院 | Pulverized coal preparation system |
| JP2011127270A (en) * | 2009-12-15 | 2011-06-30 | Nikko Co Ltd | Asphalt plant |
| CN202253664U (en) * | 2011-09-14 | 2012-05-30 | 邢献军 | High-temperature garbage incinerator |
| CN102580705A (en) * | 2012-02-29 | 2012-07-18 | 上海克硫环保科技股份有限公司 | Comprehensive heat energy utilizing type active coke purifying and regenerating process system and active coke purifying and regenerating process method |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534546A (en) * | 2014-12-18 | 2015-04-22 | 鞍山钢铁集团公司矿渣开发公司 | Slag powder production line hot air sensible heat recycling method and device |
| CN104534546B (en) * | 2014-12-18 | 2017-09-26 | 鞍山钢铁集团公司矿渣开发公司 | A kind of slag power production line hot blast sensible heat recycling method and device |
| CN106766846A (en) * | 2016-11-24 | 2017-05-31 | 新奥泛能网络科技股份有限公司 | A kind of heat recovery system |
| CN107790275A (en) * | 2017-10-19 | 2018-03-13 | 常熟凯弘节能环保科技有限公司 | Flue gas recirculation pipe with cool-down dehumidification function |
| CN108160443A (en) * | 2017-11-30 | 2018-06-15 | 北京国电富通科技发展有限责任公司 | A kind of wet stock sorting unit |
| CN109489357A (en) * | 2018-10-30 | 2019-03-19 | 中南林业科技大学 | Joint for timber is mostly used dry kiln and its application method |
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Application publication date: 20131030 |