CN103486838A - Reciprocating type drying device - Google Patents

Reciprocating type drying device Download PDF

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Publication number
CN103486838A
CN103486838A CN201310471408.2A CN201310471408A CN103486838A CN 103486838 A CN103486838 A CN 103486838A CN 201310471408 A CN201310471408 A CN 201310471408A CN 103486838 A CN103486838 A CN 103486838A
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China
Prior art keywords
drying
pushing plate
drying chamber
flue gas
temperature
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CN201310471408.2A
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Chinese (zh)
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CN103486838B (en
Inventor
吴冠峰
吴冠蕾
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SHENYANG HAIYUAN RETORTING EQUIPMENT TECHNOLOGY DEVELOPMENT Co Ltd
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SHENYANG HAIYUAN RETORTING EQUIPMENT TECHNOLOGY DEVELOPMENT Co Ltd
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Priority to CN201310471408.2A priority Critical patent/CN103486838B/en
Publication of CN103486838A publication Critical patent/CN103486838A/en
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Publication of CN103486838B publication Critical patent/CN103486838B/en
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Abstract

A reciprocating type drying device can remove surface water of materials with the high water content and can not damage volatile components and oily materials in the materials. The reciprocating type drying device is characterized in that the materials are dried through smoke, material pushing plates are arranged in a drying cavity, the staying time of the materials in the drying cavity is controlled through the advancing speed of the material pushing plates, the thickness of the material layer is controlled through a material thickness control plate, and the temperature of the smoke can be controlled through the air mixing method when the smoke enters the drying cavity. The device is suitable for drying the materials with the large caking property, the high water content and the large number of volatile components and suitable for drying the materials such as coal, oil shale, oil sand and the like.

Description

Reciprocating dryer
Technical field
The present invention is that a kind of flue gas that utilizes carries out the device of preheating and drying to material, it is characterized in that removing the surface water of high water-containing materials, but does not lose volatile matter and oleaginous material in material.
Background technology
In industrial production, usually need material preheating, drying.To water content, little material adopts rotary-drum drier or the dry device of oscillatory type to carry out drying usually.But the drier of these types can only be removed a small amount of moisture, the moisture in material surpasses 12% when above, and this class drier is just helpless, because this class materials from bonding is very strong, perhaps be bonded on the base plate of drier, or stop up the eyelet of drier, make the drier cisco unity malfunction.Particularly for materials such as long bituminous coal, brown coal, moisture up to 30~40%, to its carry out drying, anhydrate, upgrading is very difficult.And high moisture coal not only transports difficulty, waste transport power, and easily weathering, spontaneous combustion, therefore storage, keeping, the later use of high moisture coal become a great problem of coal industry.
Summary of the invention
For effectively removing the surface water of high water-containing materials, convenience, the economy of improve its transportation, storing, taking care of, for the later use of material creates favorable conditions, the technology of the present invention provides a kind of reciprocating dryer, this device can utilize the useless flue gas of 250~350 ℃ produced in industrial production, the flue gas that also can utilize fuel combustion to produce, the mixed part air of converting is reduced to the dry temperature needed and introduces reciprocating dryer again material is carried out to drying.
The technical solution used in the present invention is: reciprocating dryer is comprised of charging gear, material propulsion plant, drying chamber, flue gas access equipment, exhaust extractor, discharge device.Described charging gear is by hopper, and the thickness of feed layer control panel forms; Described material propulsion plant is comprised of motor, motion mode converter, material pushing plate; Described motion mode converter changes the circular motion of motor into the oscillating rectilinear motion of material pushing plate; Have the line strip eyelet on described material pushing plate; Described material pushing plate is arranged in drying chamber; Described drying chamber is covering insulation material all around, and the drying chamber bottom is provided with flue gas and passes into mouth, and flue gas passes into mouth and is connected with the flue gas access tube; The drying chamber bottom is provided with the waste residue outlet; Drying chamber top is provided with outlet port, and outlet port is connected with exhaust emission tube; The below at drying chamber rear portion is provided with the material outlet, and the material outlet is connected with discharge device.Described flue gas access equipment dissolves pipe by flue gas access tube and air and forms; Described exhaust extractor is comprised of exhaust emission tube and air-introduced machine; Described discharge device and material outlet communicate, and have belt conveyer.
Technical process of the present invention: wet stock enters drying device from hopper, and the hopper bottom is provided with the thickness of feed layer control panel, while carrying on control panel, and the material thickness thickening, when control panel moves down, the material thickness attenuation.Material under the effect of material pushing plate, slowly moves ahead after falling on the material pushing plate.The material pushing plate is made oscillating rectilinear motion under the effect of motion mode converter; When the material pushing plate travels forward, the material on last material pushing plate is shifted onto on more last material pushing plate, when this material pushing plate is got back to original position, the material on this material pushing plate is fallen on last material pushing plate.Thus, form the continuous reach of material, until discharge.Have the line strip eyelet on the material pushing plate, pass into mouthful flue gas of 250~350 ℃ entered from flue gas and enter the bed of material by the line strip eyelet the material pushing plate, under the impact of air-flow, material is in rarefaction, flue gas carries out drying to material in the contact process with material, the surface water evaporation that material is contained, the steam be evaporated is discharged through outlet port with the flue gas after lowering the temperature, and by exhaust emission tube, discharges.Dried material is discharged through the material outlet, transports the place needed to by belt conveyer.The lime-ash leaked down in line strip eyelet from the material pushing plate is discharged through grey slag outlet.The thickness of material on thickness of feed layer control panel regulation and control material pushing plate for apparatus of the present invention; When the waste gas discharge temperature is higher, operation thickness of feed layer control panel, the thickness of material on increase material pushing plate, when the waste gas discharge temperature is on the low side, operation thickness of feed layer control panel, the thickness of material on reduction material pushing plate; The waste gas discharge temperature is controlled between 130~170 ℃.When processing high water-containing materials, the movement velocity of the reciprocating material pushing plate of capable of regulating, extend the time of staying of material on the material pushing plate; When processing the material of high volatile, available air dissolves the flue-gas temperature that enters drying chamber, prevents the loss of volatile matter.Apparatus of the present invention are controlled the time of staying of material in drying chamber by the pace of regulation and control material pushing plate; When moisture low material is carried out to drying, improve the pace of material pushing plate, shorten the drying time of material; When moisture high material is carried out to drying, reduce the pace of material pushing plate, extend the drying time of material.Apparatus of the present invention are adjusted flue gas by the method that dissolves air and are entered the temperature in drying chamber; When flue-gas temperature is higher, dissolve pipe by air and dissolve appropriate air, reduce the temperature that flue gas enters drying chamber; When flue-gas temperature is on the low side, dissolve pipe by air and reduce the air dissolved, improve the temperature that flue gas enters drying chamber.
The invention has the beneficial effects as follows 1, be suitable for the material large to caking property and carry out drying.Because material promotes to advance by the material pushing plate, can not be bonded on the material pushing plate; 2, be suitable for moisture high material is carried out to drying, because the pace of material pushing plate can be adjusted, when processing moisture high material, can reduce the pace of material pushing plate, extend drying time.3, be suitable for the material of high volatile is carried out to drying.When the traditional drying device anhydrates to moisture high material, usually that temperature by improving heat carrier realizes, but for materials such as coal, oil shale, oil-sand, when the temperature of heat carrier surpasses 250 ℃, very easily cause again the loss of volatile matter, and the temperature of heat carrier is during lower than 250 ℃, again can not be by moisture effective removal.The present invention is because the pace of material pushing plate can be adjusted, and the way of temperature that need not be by improving heat carrier solves the drying of high water-containing materials, therefore can be used for the material of high volatile is carried out to drying.4, can utilize the hot fume afterheat produced in industrial production, remove material moisture.The temperature of the waste heat flue gas produced in industrial production, mostly at 250~350 ℃, usually because not utilizing, is all made emission treatment.And apparatus of the present invention exactly can be utilized the waste gas of 250~350 ℃, this,, to improving the heat utilization rate of factory, reduces heat loss, and energy conservation and consumption reduction effects is fairly obvious.
The accompanying drawing explanation
Fig. 1 is the reciprocating dryer structural representation.In figure, 1, hopper, 2, the thickness of feed layer control panel, 3, the material pushing plate, 4, flue gas passes into mouth, 5, outlet port, 6, exhaust emission tube, 7, the material outlet, 8, belt conveyer, 9, grey slag outlet.
Fig. 2 is the reciprocating dryer floor plan.10, motion mode converter, 11, motor; 12, flue gas access tube, 13, drying chamber, 14, air-introduced machine, 15, air dissolves pipe.
The specific embodiment
Wet stock enters drying device from hopper 1, and hopper 1 bottom is provided with thickness of feed layer control panel 2, while carrying on thickness of feed layer control panel 2, and the material thickness thickening, when thickness of feed layer control panel 2 moves down, the material thickness attenuation.After material is fallen on material pushing plate 3, material pushing plate 3 is made oscillating rectilinear motion under 10 effects of motion mode converter; Material slowly moves ahead on pushing plate 3.Have the line strip eyelet on material pushing plate 3, flue gas access tube 12 passes into mouthfuls 4 through flue gas and sends in drying chamber 13 flue gas of 250~350 ℃, the flue gas entered in drying chamber 13 enters the bed of material by the line strip eyelet on material pushing plate 3, in the contact process with material, material is carried out to drying, by the surface water evaporation contained in material, the steam be evaporated is discharged through outlet port 5 with the flue gas after lowering the temperature, and by exhaust emission tube 6, through air-introduced machine 14, discharges.Dried material is discharged through material outlet 7, transports the place needed to by belt conveyer 8.The lime-ash leaked down in line strip eyelet from material pushing plate 3 is discharged through grey slag outlet 9.When flue-gas temperature is higher, dissolve pipe 15 by air and dissolve appropriate air, reduce the temperature that flue gas enters drying chamber 13.
Reciprocating dryer of the present invention is applicable to the drying to large, the moisture height of caking property, material that volatile matter is high, is applicable to the drying of coal, oil shale, oil-sand.
The present invention it should be noted that in implementation process:
1, regulate and control the thickness of material on the material pushing plate with the thickness of feed layer control panel; When the waste gas discharge temperature is higher, operation thickness of feed layer control panel, the thickness of material on increase material pushing plate, when the waste gas discharge temperature is on the low side, operation thickness of feed layer control panel, the thickness of material on reduction material pushing plate.
2, control the time of staying of material in drying chamber by the pace of regulation and control material pushing plate; When moisture low material is carried out to drying, improve the pace of material pushing plate, shorten the drying time of material; When moisture high material is carried out to drying, reduce the pace of material pushing plate, extend the drying time of material.
3, adjust flue gas by the method that dissolves air and enter the temperature in drying chamber; When flue-gas temperature is higher, dissolve pipe by air and dissolve appropriate air, reduce the temperature that flue gas enters drying chamber; When flue-gas temperature is on the low side, dissolve pipe by air and reduce the air dissolved, improve the temperature that flue gas enters drying chamber.
4, adjust flue gas by the method that dissolves air and enter the temperature in drying chamber; When flue-gas temperature is higher, dissolve pipe by air and dissolve appropriate air, reduce the temperature that flue gas enters drying chamber; When flue-gas temperature is on the low side, dissolve pipe by air and reduce the air dissolved, improve the temperature that flue gas enters drying chamber.
When 5, to volatile matter, high material carries out drying, the temperature that the control flue gas enters drying chamber is no more than 300 ℃; In the time can utilizing flue-gas temperature to surpass 300 ℃, with air, dissolved, again material is carried out to drying after making it be reduced to suitable temperature.
6, for reducing the loss of tiny material in dry run, should should guarantee the smooth and easy current of air-flow according to actual conditions and the technological requirement design of the material that is dried to the width of the line strip eyelet on the material pushing plate, prevent that again tiny loss of material is excessive.

Claims (7)

1. a reciprocating dryer, is characterized in that being comprised of charging gear, material propulsion plant, drying chamber, flue gas access equipment, exhaust extractor, discharge device; Described charging gear is by hopper, and the thickness of feed layer control panel forms; Described material propulsion plant is comprised of motor, motion mode converter, material pushing plate; Described motion mode converter changes the circular motion of motor into the oscillating rectilinear motion of material pushing plate; Have the line strip eyelet on described material pushing plate; Described material pushing plate is arranged in drying chamber; Described drying chamber is covering insulation material all around, and the drying chamber bottom is provided with flue gas and passes into mouth, and flue gas passes into mouth and is connected with the flue gas access tube; The drying chamber bottom is provided with the waste residue outlet; Drying chamber top is provided with outlet port, and outlet port is connected with exhaust emission tube; The below at drying chamber rear portion is provided with the material outlet, and the material outlet is connected with discharge device; Described flue gas access equipment dissolves pipe by flue gas access tube and air and forms; Described exhaust extractor is comprised of exhaust emission tube and air-introduced machine; Described discharge device and material outlet communicate, and have belt conveyer.
2. reciprocating dryer according to claim 1, is characterized in that being applicable to the drying of large, the moisture height of caking property, material that volatile matter is high.
3. reciprocating dryer according to claim 1, is characterized in that being applicable to the drying of coal, oil shale, oil-sand.
4. reciprocating dryer according to claim 1, is characterized in that the thickness with material on thickness of feed layer control panel regulation and control material pushing plate; When the waste gas discharge temperature is higher, operation thickness of feed layer control panel, the thickness of material on increase material pushing plate, when the waste gas discharge temperature is on the low side, operation thickness of feed layer control panel, the thickness of material on reduction material pushing plate.
5. reciprocating dryer according to claim 1, is characterized in that controlling the time of staying of material in drying chamber by the pace of regulation and control material pushing plate; When moisture low material is carried out to drying, improve the pace of material pushing plate, shorten the drying time of material; When moisture high material is carried out to drying, reduce the pace of material pushing plate, extend the drying time of material.
6. reciprocating dryer according to claim 1, is characterized in that adjusting flue gas by the method that dissolves air enters the temperature in drying chamber; When flue-gas temperature is higher, dissolve pipe by air and dissolve appropriate air, reduce the temperature that flue gas enters drying chamber; When flue-gas temperature is on the low side, dissolve pipe by air and reduce the air dissolved, improve the temperature that flue gas enters drying chamber.
7. reciprocating dryer according to claim 1, while it is characterized in that the material high to volatile matter carries out drying, control the temperature that flue gas enters drying chamber and be no more than 300 ℃; In the time can utilizing flue-gas temperature to surpass 300 ℃, with air, dissolved, again material is carried out to drying after making it be reduced to suitable temperature.
CN201310471408.2A 2013-10-11 2013-10-11 Reciprocating type drying device Expired - Fee Related CN103486838B (en)

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CN103486838B CN103486838B (en) 2015-03-11

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106440744A (en) * 2016-12-26 2017-02-22 广西崇左市湘桂糖业有限公司 Vibration tank fall type bagasse smoke drying device
CN106440742A (en) * 2016-01-07 2017-02-22 舒瑞 Staggered-bed type drying device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2359644Y (en) * 1998-12-29 2000-01-19 钱铭铨 Multiple-story oscillating fluidized bed dryer
EP1475594A1 (en) * 2003-05-08 2004-11-10 Claudius Peters Technologies GmbH Process and apparatus to transport bulk material on a grid
JP3770398B2 (en) * 2003-09-03 2006-04-26 株式会社日本製鋼所 Vibration type dehydration drying equipment
CN201709311U (en) * 2010-06-11 2011-01-19 芜湖瑞创投资股份有限公司 Grain drying machine
CN203024550U (en) * 2012-12-16 2013-06-26 哥乐巴环保科技(上海)有限公司 Woodiness fuel reciprocating grate drying machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2359644Y (en) * 1998-12-29 2000-01-19 钱铭铨 Multiple-story oscillating fluidized bed dryer
EP1475594A1 (en) * 2003-05-08 2004-11-10 Claudius Peters Technologies GmbH Process and apparatus to transport bulk material on a grid
JP3770398B2 (en) * 2003-09-03 2006-04-26 株式会社日本製鋼所 Vibration type dehydration drying equipment
CN201709311U (en) * 2010-06-11 2011-01-19 芜湖瑞创投资股份有限公司 Grain drying machine
CN203024550U (en) * 2012-12-16 2013-06-26 哥乐巴环保科技(上海)有限公司 Woodiness fuel reciprocating grate drying machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106440742A (en) * 2016-01-07 2017-02-22 舒瑞 Staggered-bed type drying device
CN106440742B (en) * 2016-01-07 2019-03-15 北京巨星新能源科技有限公司 A kind of bed drying unit that interlocks
CN106440744A (en) * 2016-12-26 2017-02-22 广西崇左市湘桂糖业有限公司 Vibration tank fall type bagasse smoke drying device

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Granted publication date: 20150311

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