CN203229489U - Drying or smouldering device for lignite or low metamorphic long-flame coal - Google Patents

Drying or smouldering device for lignite or low metamorphic long-flame coal Download PDF

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Publication number
CN203229489U
CN203229489U CN 201320228886 CN201320228886U CN203229489U CN 203229489 U CN203229489 U CN 203229489U CN 201320228886 CN201320228886 CN 201320228886 CN 201320228886 U CN201320228886 U CN 201320228886U CN 203229489 U CN203229489 U CN 203229489U
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China
Prior art keywords
low
coal
drying
tunnel
smouldering
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Expired - Fee Related
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CN 201320228886
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Chinese (zh)
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蔡京鹏
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蔡京鹏
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    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10BDESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B7/00Coke ovens with mechanical conveying means for the raw material inside the oven
    • C10B7/14Coke ovens with mechanical conveying means for the raw material inside the oven with trucks, containers, or trays
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B15/00Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
    • F26B15/10Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions
    • F26B15/12Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined
    • F26B15/16Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined the objects or batches of materials being carried by wheeled trucks

Abstract

The utility model discloses a drying or smouldering device for lignite or low metamorphic long-flame coal. A plurality of exhaust emission holes are formed in the top of a tunnel type drying chamber of the device, more than one condensed water discharge outlet is formed in the bottom of the tunnel type drying chamber, the feeding end part of the device is provided with a low temperature section, the discharging end part of the device is provided with a high temperature section, a hot air or steam inlet is formed in the high temperature section, a charging car moves from the feeding end part to the discharging end part and is installed in the tunnel type drying chamber, and a plurality of metal material pipes with air holes are installed on the charging car at intervals. The device is also provided with a heat exchanger for communicating the exhaust emission holes with the hot air or steam inlet. According to the drying or smouldering device, the movement direction of the charging car is opposite to the introduction direction of hot air or steam, so that materials placed in the metal material pipes can be gradually heated up for drying or smouldering. The moisture of the dried or smouldered materials is significantly reduced, the moisture evaporated from the materials can be mostly discharged in the form of condensed water so as to be environment-friendly and easy to control, the heat of vaporization is partially recycled, the equipment is simple, the production cost is low, and the drying or smouldering device is easy to produce in large batches.

Description

Oven dry or the low-temperature pyrolysis device of a kind of brown coal or low rotten long-flame coal
Technical field
The utility model relates to the coal drying field, especially relates to oven dry or the low-temperature pyrolysis field of brown coal and low rotten long-flame coal.
Background technology
For many years both at home and abroad for the moisture content that reduces brown coal and low rotten long-flame coal, the technical matters of upgrading has been done a large amount of research trials, the method that adopts is of a great variety, but also there is not the proven technique flow process, there are many drawbacks, mainly containing: 1.. the coal after the oven dry still has the shortcoming of brown coal fully, and easily spontaneous combustion, weathering, easy suction are got damp.2.. the dry method oven dry is low because of the brown coal burning-point, and hot blast directly contacts with coal during oven dry, and is dangerous big, easily catches fire even explodes; Tail vapour is carried coal dust secretly, and environmental pollution control degree is poor; During wet method (steam) oven dry, steam consumption is big, and power consumption is big, production cost height, and equipment manufacturing cost costliness.3.. the drying plant complexity is difficult to maximize and produces cost of investment height, production cost height.
The utility model content
At the problem that prior art exists, the utility model provides oven dry or the low-temperature pyrolysis device of a kind of brown coal or low rotten long-flame coal.Material moisture content after this device oven dry or the low-temperature pyrolysis reduces significantly, particularly brown coal or low rotten long-flame coal, and its resorption is minimum, and spontaneous combustion, weathering do not take place, and the unit thermal value increases substantially; Volume dwindles significantly, and granule strength increases; The moisture content that evaporates in the material can most ofly be discharged with the water of condensation form, and environmental protection is easy to control, the partially recycled utilization of vaporization heat, and production cost is low; The simple cost of equipment is low, is easy to produce in enormous quantities.
For achieving the above object, technical solutions of the utility model are:
Oven dry or the low-temperature pyrolysis device of a kind of brown coal or low rotten long-flame coal, the top of the tunnel like drying shed of this device is provided with a plurality of exhaust emissionss hole, and the bottom is provided with more than one condensate drain outlet; The charging end of this tunnel like drying shed is low-temperature zone, and the discharging end is high temperature section, is provided with hot blast or steam admission port in high temperature section; The coal charger speed-controllable of this device, and move to the discharging end from the charging end and to be installed in the tunnel drying shed; The metal charge pipe of this device is provided with a plurality of, and is installed on the coal charger at interval, and is equipped with breather hole on each metal charge pipe.
Further, this device comprises that also hot blast that an output temperature, flow velocity and flow are controlled or this interchanger of interchanger of steam arrange outside the tunnel like drying shed, and is communicated with tail gas venting hole and hot blast or the steam admission port of tunnel like drying shed.
Further, the aperture of the breather hole on the metal charge pipe is smaller or equal to 5mm.
Further, the every 1m on the metal charge pipe highly is provided with 1-2 breather hole.
The utility model is contained in material (particle of brown coal or low rotten long-flame coal) in the metal charge pipe, heating agent (hot blast or steam) by interchanger output does not contact coal particle, make flammable materials (particle of brown coal or low rotten long-flame coal) in drying process, not contact oxygen, do not produce the danger of burning, blast.The metal charge pipe is installed on the coal charger, can realize the oven dry of the static relatively property of material, is particularly conducive to the modification of brown coal or low rotten long-flame coal particle, volume-diminished, and intensity increases, and does not get damp not spontaneous combustion, not efflorescence.The utility model coal charger is speed-controllable, the hot blast of interchanger output or temperature, flow velocity and the flow of steam are controlled, guarantee that effectively the brown coal particle dries under the temperature and time of the best, discharge after the big portion of the moisture content in the material is condensed into water, big recovery of the latent heat of vaporization, environmental protection are easy to control.The utility model drying system is easy to maximize and produces in batches, and industrialization uses program simple, and equipment manufacturing cost is low, and production cost is low, and social cost is low.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, constitutes a part of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not constitute improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of the utility model oven dry or low-temperature pyrolysis device.
Embodiment
In order to make technical problem to be solved in the utility model, technical scheme and beneficial effect clearer, clear, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
Oven dry or the low-temperature pyrolysis device of a kind of brown coal as shown in Figure 1 or low rotten long-flame coal, this device includes tunnel like drying shed 1, coal charger 2, metal charge pipe 3 and interchanger 4.
The top of described tunnel like drying shed 1 is provided with a plurality of exhaust emissionss hole 11, and the bottom is provided with more than one condensate drain outlet 12.In the described tunnel like drying shed from the feed end to the discharge end be one by low temperature to the asymptotic keeping warmth space of high temperature.Just, the charging end of tunnel like drying shed 1 is low-temperature zone, and the discharging end of tunnel like drying shed 1 is high temperature section, and middle portion is the temperature increase section.The utility model arranges hot blast or steam admission port 13 in the position of tunnel like drying shed high temperature section.
Described coal charger 2 speed-controllable, and be set to a plurality ofly, coal charger moves to the discharging end from the charging end and is installed in the tunnel drying shed 1.The speed that described coal charger 2 can configure slides on the track 14 that is provided with in tunnel drying shed 1 by driving arrangements such as tractor or top cars.
Described metal charge pipe 3 can be one, or a plurality of interval is installed on every coal charger 2, to move with coal charger 2 one, leaves certain spaced slot between the metal charge pipe 3, is beneficial to ventilate.Metal charge pipe 3 can be cylindric, also can be flat column.Be equipped with breather hole 31 on each metal charge pipe 3, so that oven dry and drainage water steam or other gas during low-temperature pyrolysis.Breather hole 31 can not be excessive, can not be too much, and the air burning of entering in a large number to cause when avoiding heating, therefore best, the every 1m on the metal charge pipe 3 highly is provided with 1-2 breather hole, and the aperture of breather hole is smaller or equal to 5mm.
Described interchanger 4 arranges outside the tunnel like drying shed 1, and is communicated with tail gas venting hole 11 and hot blast or the steam admission port 13 of tunnel like drying shed 1.The hot blast of these interchanger 4 outputs or temperature, flow velocity and the flow of steam are controlled.Configure the hot blast of temperature, flow velocity, flow or steam and feed from the discharge end of tunnel like drying shed 1, opposite with coal charger 2 travel directions.Hot blast or steam are discharged to the feed end of tunnel like drying shed 1 by the slit between the metal charge pipe 3, and heating of metal material pipe 3 simultaneously, and then the material in the metal charge pipe 3 is dried or low-temperature pyrolysis.
Said apparatus also can be used for the drying of unclassified stores except can be used for oven dry or low-temperature pyrolysis brown coal or low rotten long-flame coal.Be example with oven dry or low-temperature pyrolysis brown coal or low rotten long-flame coal now, specify and adopt said apparatus to dry or the method for low-temperature pyrolysis, step is as follows: 1. charging: the particle of brown coal or low rotten long-flame coal is packed in a plurality of heat conductivility good metal material pipes 3 on the coal charger 2.
2. charging: the coal charger 2 that charging is finished enters in the tunnel like drying shed 1 from the feed end of tunnel like drying shed 1; The discharging end of tunnel like drying shed 1 feeds hot blast or the steam of the temperature with drying capacity, flow velocity and the flow that preset, and hot blast or steam can be one or more feedings.
3. oven dry or low-temperature pyrolysis: coal charger 2 moves to discharge end by the feed end of the speed that presets from tunnel like drying shed 1, moves to discharge end by driving arrangements such as tractor or top cars with the speed that configures.The travel direction of coal charger 2 is opposite with the feeding direction of hot blast or steam, so that the brown coal or the low particle that goes bad long-flame coal that are contained in the metal charge pipe 3 heat up gradually, dries or destructive distillation; The tail gas that produces in oven dry or the retort process is discharged from a plurality of exhaust emissionss hole 11 of tunnel like drying chamber top.The water evaporates of the particle of brown coal or low rotten long-flame coal is also discharged from the breather hole 31 of metal charge pipe 3, be blended in hot blast or the steam low-temperature material post that just advances tunnel like drying shed 1 heated, but part steam again the disengaged vapor heat-transmission can after be condensed into water and discharge from the condensate drain outlet 12 of tunnel like drying shed 1 bottom.
The utility model also reclaims the tail gas that discharge in a plurality of exhaust emissionss hole 11 by acquiring interchanger 4, behind all or part of feeding interchanger 4 reheat of tail gas that discharge in a plurality of exhaust emissionss hole 11, feed again from the hot blast of tunnel like drying shed 1 or steam admission port 13 and to participate in oven dry or low-temperature pyrolysis work in the tunnel like drying shed 1.Because the hot blast in the tail gas has certain temperature, contains a large amount of vaporization heat in the water vapor that carries, recycling can be saved a large amount of heat energy.Simultaneously, because the specific heat of steam and thermal conductivity height, the content that improves steam in the hot blast helps to improve drying efficiency and speed.
Described interchanger 4 can be coal heating, also can use other type of heating.Interchanger 4 can feed clean air, after becoming the hot blast with drying capacity after interchanger 4 heating, feed in the tunnel like drying shed 1 from discharge end, metal charge pipe 3 is dried the back discharges from feed end or the exhaust port 11 of tunnel like drying shed 1, because the hot blast itself by heat exchange is clean, the particle with brown coal or low rotten long-flame coal does not directly contact in drying course, and the tail gas environmental protection of discharge is controlled easily.
4. the particle of the brown coal that finish of drying or low-temperature pyrolysis or low rotten long-flame coal after coal charger 2 is sent from discharge end, after overcooling, draws off in metal charge pipe 3 again, is finished product.
Above-mentioned explanation illustrates and has described preferred embodiment of the present utility model, as previously mentioned, be to be understood that the utility model is not limited to the disclosed form of this paper, should not regard the eliminating to other embodiment as, and can be used for various other combinations, modification and environment, and can in utility model contemplated scope described herein, change by technology or the knowledge of above-mentioned instruction or association area.And the change that those skilled in the art carry out and variation do not break away from spirit and scope of the present utility model, then all should be in the protection domain of the utility model claims.

Claims (5)

1. oven dry or the low-temperature pyrolysis device of brown coal or low rotten long-flame coal, it is characterized in that: this device comprises:
Tunnel like drying shed, its top are provided with a plurality of exhaust emissionss hole, and the bottom is provided with more than one condensate drain outlet; The charging end of this tunnel like drying shed is low-temperature zone, and the discharging end is high temperature section, is provided with hot blast or steam admission port in high temperature section;
Coal charger, its speed-controllable, and move to the discharging end from the charging end and to be installed in the tunnel drying shed;
The metal charge pipe, it is provided with a plurality of, and is installed on the coal charger at interval, and is equipped with breather hole on each metal charge pipe.
2. oven dry or the low-temperature pyrolysis device of a kind of brown coal as claimed in claim 1 or low rotten long-flame coal, it is characterized in that: this device comprises that also hot blast that an output temperature, flow velocity and flow are controlled or this interchanger of interchanger of steam arrange outside the tunnel like drying shed, and is communicated with tail gas venting hole and hot blast or the steam admission port of tunnel like drying shed.
3. oven dry or the low-temperature pyrolysis device of a kind of brown coal as claimed in claim 1 or 2 or low rotten long-flame coal, it is characterized in that: the aperture of the breather hole on the metal charge pipe is smaller or equal to 5mm.
4. oven dry or the low-temperature pyrolysis device of a kind of brown coal as claimed in claim 1 or 2 or low rotten long-flame coal, it is characterized in that: the every 1m on the metal charge pipe highly is provided with 1-2 breather hole.
5. oven dry or the low-temperature pyrolysis device of a kind of brown coal as claimed in claim 3 or low rotten long-flame coal, it is characterized in that: the every 1m on the metal charge pipe highly is provided with 1-2 breather hole.
CN 201320228886 2013-04-28 2013-04-28 Drying or smouldering device for lignite or low metamorphic long-flame coal Expired - Fee Related CN203229489U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320228886 CN203229489U (en) 2013-04-28 2013-04-28 Drying or smouldering device for lignite or low metamorphic long-flame coal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN 201320228886 CN203229489U (en) 2013-04-28 2013-04-28 Drying or smouldering device for lignite or low metamorphic long-flame coal
PCT/CN2013/075162 WO2014176792A1 (en) 2013-04-28 2013-05-04 Drying or low-temperature dry distillation device for lignite coal or low-metamorphic candle coal

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103242876A (en) * 2013-04-28 2013-08-14 蔡京鹏 Drying or low-temperature dry distillation method and device of brown coal or low-metamorphic candle coal
WO2014201708A1 (en) * 2013-06-22 2014-12-24 Cai Jingpeng Drying or low-temperature destructive distillation method and apparatus for brown coal or low-deterioration long flame coal

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101907383B (en) * 2010-08-10 2012-06-06 浙江大学 Belt-conveying drying system and method for realizing dehydration and upgrading of lignite by using solar energy
CN102757833A (en) * 2011-04-26 2012-10-31 周灿旭 Large-scale brown coal quality-improving process and apparatus
US9074138B2 (en) * 2011-09-13 2015-07-07 C2O Technologies, Llc Process for treating coal using multiple dual zone steps
CN102352272A (en) * 2011-09-14 2012-02-15 苏州海陆重工股份有限公司 Lignite quality-improving device
CN102618346A (en) * 2012-03-22 2012-08-01 解欣业 High-efficiency low-temperature vacuum brown-coal upgrading device and process
CN103242876A (en) * 2013-04-28 2013-08-14 蔡京鹏 Drying or low-temperature dry distillation method and device of brown coal or low-metamorphic candle coal

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103242876A (en) * 2013-04-28 2013-08-14 蔡京鹏 Drying or low-temperature dry distillation method and device of brown coal or low-metamorphic candle coal
WO2014176793A1 (en) * 2013-04-28 2014-11-06 Cai Jingpeng Drying or low-temperature dry distillation method and device for lignite coal or low-metamorphic candle coal
WO2014201708A1 (en) * 2013-06-22 2014-12-24 Cai Jingpeng Drying or low-temperature destructive distillation method and apparatus for brown coal or low-deterioration long flame coal

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20131009

Termination date: 20150428

EXPY Termination of patent right or utility model