CN109135787A - Coal drying, destructive distillation method for upgrading and equipment - Google Patents
Coal drying, destructive distillation method for upgrading and equipment Download PDFInfo
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- CN109135787A CN109135787A CN201811259621.6A CN201811259621A CN109135787A CN 109135787 A CN109135787 A CN 109135787A CN 201811259621 A CN201811259621 A CN 201811259621A CN 109135787 A CN109135787 A CN 109135787A
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- destructive distillation
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- 239000003245 coal Substances 0.000 title claims abstract description 144
- 238000001035 drying Methods 0.000 title claims abstract description 122
- 238000000197 pyrolysis Methods 0.000 title claims abstract description 113
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000007599 discharging Methods 0.000 claims abstract description 37
- 239000000428 dust Substances 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 22
- 239000000843 powder Substances 0.000 claims description 17
- 239000007789 gas Substances 0.000 claims description 16
- 235000013312 flour Nutrition 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- 230000003247 decreasing effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 239000000446 fuel Substances 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 3
- 206010013786 Dry skin Diseases 0.000 claims description 2
- 239000000779 smoke Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 description 7
- 239000003077 lignite Substances 0.000 description 5
- 239000002817 coal dust Substances 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 235000011194 food seasoning agent Nutrition 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 238000010980 drying distillation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000003415 peat Substances 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/04—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of powdered coal
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B49/00—Destructive distillation of solid carbonaceous materials by direct heating with heat-carrying agents including the partial combustion of the solid material to be treated
- C10B49/02—Destructive distillation of solid carbonaceous materials by direct heating with heat-carrying agents including the partial combustion of the solid material to be treated with hot gases or vapours, e.g. hot gases obtained by partial combustion of the charge
- C10B49/04—Destructive distillation of solid carbonaceous materials by direct heating with heat-carrying agents including the partial combustion of the solid material to be treated with hot gases or vapours, e.g. hot gases obtained by partial combustion of the charge while moving the solid material to be treated
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/08—Non-mechanical pretreatment of the charge, e.g. desulfurization
- C10B57/10—Drying
Abstract
The present invention relates to a kind of coal drying, destructive distillation method for upgrading and equipment, coal drying, destructive distillation upgrading device include hot air supplier, roller retorting machine, roller drying machine, charging belt machine, discharging belt conveyer, transfer belt feeder, hot wind connecting tube, and hot air supplier is connect by quirk with the side of the discharging of roller retorting machine；Transfer belt feeder is located at the position between the destructive distillation roller of roller retorting machine and the drying roller of the roller drying machine；Hot wind connecting tube one end is connected to the charging end of destructive distillation roller, and the other end is connected to the discharging end of drying roller, is used for heat air delivery；The charging side of drying roller is arranged in charging belt machine；The side of the discharging of destructive distillation roller is arranged in discharging belt conveyer.Drying, destructive distillation, using same hot air source, gradient utilizes hot blast temperature, carries out heat exchange, high to hot wind utilization rate.Coal drying, destructive distillation, simple process are disposably completed on one production line.
Description
Technical field
The present invention relates to technical field of coal processing, and in particular to a kind of coal drying, destructive distillation method for upgrading and equipment.
Background technique
Lignite also known as bavin coal are the minimum pit coals of degree of coalification.It is a kind of dark brown between peat and pitch coal
Color, lacklustre rudimentary coal.Chemical reactivity is strong, is easy weathering in air, is not easy to store and transport, to air dirt when burning
Dye is serious.But since fat coal is almost mined out, lignite has become China master coal to be used, but due to the coalification journey of lignite
Degree is too low, and sulfide content is high, and not only combustion utilization efficiency is low, and a large amount of grey black is had when also will cause burning and is floatd in the sky, and
And the pernicious gases such as a large amount of sulfur dioxide can be discharged, if handled without drying and destructive distillation, largely use the meeting of disadvantage lignite
China's haze is led to problems such as to get worse.
Coal destructive distillation is mainly the moisture and removing part volatile matter hydrogen, oxygen species further decreased in coal, removes coal
Charcoal moisture removes 40-50% volatile matter substance to less than 5% (or lower).Roller retorting machine is in anaerobic or oxygen deprivation item
Under part, to coal pyrolysis destructive distillation, coal temperature is stepped up to 400-600 DEG C (coal and product requirement difference, temperature are different),
Water and the removing of volatile matter material part in coal, product are high card, low-sulfur, low water, low volatile destructive distillation upgraded coal, coal chemical industry use
Coal.
A kind of lignite destructive distillation device as disclosed in the utility model patent that Authorization Notice No. is CN203960118U, the device
It is all using different heat sources pair under normal circumstances since drying is different with destructive distillation required temperature including drying oven, gas retort
Drying oven, gas retort heat supply, complex process, energy utilization rate be not high.
Summary of the invention
The object of the present invention is to provide a kind of coal dryings, destructive distillation method for upgrading, to solve using different heat sources to dry
The problem of dry furnace, gas retort heat supply, complex process.The present invention provides a kind of coal drying, destructive distillation upgrading device simultaneously.
To achieve the above object, coal drying of the present invention, destructive distillation method for upgrading adopt the following technical scheme that coal drying,
Destructive distillation method for upgrading, includes the following steps, (1), starting hot air supplier generates hot wind；(2), effect of the hot wind in air-introduced machine
Under be introduced into the destructive distillation roller of roller retorting machine, hot wind by hot wind connecting tube enter back into roller drying machine drying rolling
Cylinder starts charging belt machine, discharging belt conveyer when the temperature in destructive distillation roller reaches 800 degrees Celsius or more；(3), to upgrading
Coal entered in drying roller by charging belt machine, in roller hot wind carry out heat exchange；(4), from drying roller
Coal out is delivered in the destructive distillation roller by transfer belt feeder；(5), it is further decreased in coal in destructive distillation roller
Water and removing part volatile matter hydrogen, oxygen species, roller retorting machine is under anaerobic or oxygen lean conditions, to coal pyrolysis destructive distillation；
(6), the coal obtained after destructive distillation is transported by discharging belt conveyer to discharge zone.
Further preferably, coal drying, destructive distillation method for upgrading further include step (7), after entire destructive distillation, desiccation
Exhaust gas enters in cyclone dust collectors under air-introduced machine effect.
Further preferably, coal drying, destructive distillation method for upgrading further include step (8), and the exhaust gas after preliminary dust removal is by whirlwind
Deduster enters in sack cleaner, removes minute dusts；Step (9), by sack cleaner treated exhaust gas, by cigarette
Chimney emits.
Further preferably, in step (3), to the coal of upgrading, the processing for breaing up feeder is first passed through, is entered back into described
Charging belt machine.
Further preferably, in step (3), drying roller is successively arranged tri- workspaces a, b, c, a, guide area, coal elder generation
It is contacted into the workspace with high-temperature hot-air, rapid evaporation water, coal is imported into next work in the case where stock guide is copied
Area；B, shovelling plate area, coal are taken up to form material tentiform state by shovelling plate in the workspace, and coal material comes into full contact with hot wind at this time,
Moisture in coal evaporates rapidly, achievees the purpose that coal drying；Coal is dried to loose condition (of surface) in the workspace, into most
Discharge zone afterwards；C, discharge zone, drying roller do not set shovelling plate in the workspace, and coal is in the workspace roll-sliding to discharge
Mouthful, complete entire drying course.
For implementing above-mentioned coal drying, the coal drying of destructive distillation method for upgrading, destructive distillation upgrading device using following technology
Scheme: including hot air supplier, roller retorting machine, roller drying machine, charging belt machine, discharging belt conveyer, transfer belt feeder, heat
Wind connecting tube, hot air supplier are connect by quirk with the side of the discharging of roller retorting machine；Transfer belt feeder is dry positioned at roller
The position between the destructive distillation roller of machine and the drying roller of the roller drying machine is evaporated, for transmitting coal material；Hot wind connection
Pipe one end is connected to the charging end of destructive distillation roller, and the other end is connected to the discharging end of drying roller, is used for heat air delivery；On
The charging side of drying roller is arranged in material belt feeder, is used for feeding；The one of the discharging of destructive distillation roller is arranged in discharging belt conveyer
Side is used for discharging.
Further preferably, coal drying, destructive distillation upgrading device further include sequentially connected cyclone dust collectors, bag-type dust
Device, air-introduced machine, the air inlet of cyclone dust collectors are connect with the discharging end of the drying roller.
Further preferably, the hot air supplier includes coal-powder boiler, and coal drying, destructive distillation upgrading device further include raw coal material
Storehouse, flour mill, the feed opening of raw coal feed bin are located above the feed inlet of flour mill, and flour mill connects the coal-powder boiler by expects pipe
With to coal-powder boiler for fuel.
Further preferably, the hot air supplier further includes hot-blast stove, and coal-powder boiler is connect with hot-blast stove, and hot-blast stove passes through institute
Quirk is stated to connect with the side of the discharging of roller retorting machine.
Further preferably, the drying roller and destructive distillation roller are arranged in parallel, and drying roller, destructive distillation roller are connect with hot wind
U-shaped arrangement between pipe three.Compact layout saves cost, saves floor occupying area.
Beneficial effects of the present invention: the present invention uses after using reverse-flow hot air seasoning and distillation process, coal to crush to dry
Dry drum is first dried the mode of destructive distillation again, to obtain the coal product for meeting quality requirement.Roller drying machine and roller are dry
It evaporates machine to be used in series, the two is connected by hot wind connecting tube, and roller drying machine is dehydrated and gives coal heat temperature raising, roller retorting machine
Pyrolysis, destructive distillation coal remove part volatile matter and interior water, obtain high heating value, low volatilization, low pollution coal chemical industry coal.This
Invention using reverse-flow, coal material conveying direction and hot blast flow direction on the contrary, the high hot wind of temperature first with it is after drying, to destructive distillation
Coal contact, hot wind passes through hot wind connecting tube again and flows in drying roller, to coal drying and processing.Drying, destructive distillation use
Same hot air source, gradient utilize hot blast temperature, carry out heat exchange.Hot wind between drying roller and destructive distillation roller is connected by hot wind
Adapter tube conveying, and coal material between the two is transmitted by transfer belt feeder, and coal baking is disposably completed on a production line
Dry, destructive distillation, simple process are high to hot wind utilization rate.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of coal drying of the present invention, destructive distillation upgrading device；
Fig. 2 is the partial schematic diagram in Fig. 1.
Corresponding title: 1, raw coal feed bin, 2, flour mill, 3, coal-powder boiler, 4, igniter, 5, hot wind are respectively marked in figure
Furnace, 6, quirk, 7, destructive distillation roller, 8, hot wind connecting tube, 9, transfer belt feeder, 10, drying roller, 11, charging belt machine, 12,
Break up feeder, 13, discharging belt conveyer, 14, cyclone dust collectors, 15, sack cleaner, 16, air-introduced machine, 17, chimney, 18,
Two driving motors, the 19, first driving motor.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description.
The embodiment of coal drying of the present invention, destructive distillation method for upgrading: as Figure 1-Figure 2, coal drying, destructive distillation upgrading side
Method, comprising the following steps:
(1), start hot air supplier, generate hot wind；Specifically, hot air supplier includes coal-powder boiler 3, hot-blast stove 5, is passed through
4 firing coal-dust furnace 3 of igniter, coal-powder boiler 3 provide fine coal powder as fuel by flour mill 2.It is dry to start roller drying machine, roller
Evaporate machine, air-introduced machine 16, cyclone dust collectors 14 and sack cleaner 15.Coal-powder boiler 3 burning generate hot gas will by hot-blast stove 5 into
Row sedimentation.It is equivalent to high-temperature flue gas and carries out second-time burning in hot-blast stove 5, a small amount of dust of entrained with is in hot-blast stove 5 in flue gas
Interior to settle through high temperature polymerization, to purify subsequent desiccant hot wind, hot-blast stove itself has sedimentation function.Coal-powder boiler, hot-blast stove
It is the prior art.
(2), hot wind is introduced into the destructive distillation roller 7 of roller retorting machine under the action of air-introduced machine, and hot wind passes through hot wind
Connecting tube 8 enters back into the drying roller 10 of roller drying machine, when the temperature in destructive distillation roller reaches 800 degrees Celsius or more,
Feeder 12, charging belt machine 11, discharging belt conveyer 13 are broken up in starting.
(3), it is entered in drying roller 10 to the coal of upgrading by charging belt machine 11, is carried out with the hot wind in roller
Heat exchange.Coal to upgrading first passes through the processing for breaing up feeder 12, enters back into charging belt machine 11, the coal broken up
Partial size is not more than 50mm.
Drying roller 10 is successively arranged tri- workspaces a, b, c, a, guide area, and coal is introduced into the workspace and high warm
Wind contact, rapid evaporation water, coal under the copying of stock guide, are imported into next workspace namely b on the inside of the drying roller
Workspace；B, shovelling plate area, coal are taken up to form material tentiform state by shovelling plate in the workspace, and coal material sufficiently connects with hot wind at this time
It touches, the moisture in coal evaporates rapidly, and removing becomes vapor, and vapor is taken away by air-introduced machine immediately, reaches coal drying
Purpose；Coal is dried to loose condition (of surface) in the workspace, and material reaches required moisture state after heat exchange, enters
Last discharge zone；C, discharge zone, drying roller do not set shovelling plate in the workspace, and coal is in the workspace roll-sliding to discharging
Mouthful, complete entire drying course.Entire drying course needs 40-60 minutes.
(4), the coal come out from drying roller 10, is delivered in destructive distillation roller by transfer belt feeder 9.
(5), the water and removing part volatile matter hydrogen, oxygen species in coal are further decreased in destructive distillation roller, remove coal
Charcoal moisture removes 40-50% volatile matter substance to less than 5% (or lower).Roller retorting machine is in anaerobic or oxygen deprivation item
Under part, to coal pyrolysis destructive distillation, coal temperature is stepped up to 400-600 DEG C (coal and product requirement difference, temperature are different),
Water and the removing of volatile matter material part in coal.Entire retort process takes around 60 minutes.
(6), the coal obtained after destructive distillation is transported by discharging belt conveyer 13 to discharge zone.Coal after destructive distillation belong to high card,
Low-sulfur, low water, low volatile destructive distillation upgraded coal, coal chemical industry coal.
(7), it is entered in cyclone dust collectors 14 under air-introduced machine effect in the exhaust gas after entire destructive distillation, desiccation.?
The biggish dust of degranulation is removed in cyclone dust collectors 14.
(8), the exhaust gas after preliminary dust removal is entered in sack cleaner 15 by cyclone dust collectors 14, removes minute dusts.
(9), it by treated the exhaust gas of sack cleaner 15, is emitted by chimney 17.So far, entire coal is dry
Dry, destructive distillation grading process is completed.
During the entire process of coal drying, destructive distillation upgrading, have several places to adjust operation: the speed of feeding can be by breaing up feeding
The motor variable-frequency speed-regulating of machine is realized；The revolving speed of respective driving motor is adjusted to realize in dry and retorting time length；
Temperature adjusts the revolving speed of the flour mill 2 under coal-fired feed bin according to the display of temperature controller to realize in dry and destructive distillation roller.More than
The adjusting of several parts can also obtain the quality of product according to the character of specific material and drying, destructive distillation suitably to be adjusted
It is whole.
The embodiment of coal drying of the present invention, destructive distillation upgrading device: as depicted in figs. 1 and 2.
Coal drying, destructive distillation upgrading device, including hot air supplier, roller retorting machine, roller drying machine, charging belt machine
11, discharging belt conveyer 13, transfer belt feeder 9, hot wind connecting tube 8, raw coal feed bin 1, flour mill 2.Hot air supplier includes coal dust
Furnace, the feed opening of raw coal feed bin 1 are located above the feed inlet of flour mill 2, and flour mill 2 connects coal-powder boiler by expects pipe to give coal dust
Furnace is for fuel.Coal dust is ignited burning in coal-powder boiler, and the flue gas of generation enters hot-blast stove and settled.Hot-blast stove passes through quirk
6 connect with the side of the discharging of roller retorting machine, and hot-blast stove provides relatively clean high-temperature hot-air to roller retorting machine.This implementation
In, flour mill 2, coal-powder boiler, hot-blast stove itself are the prior art.For example, 2 structure of flour mill, principle can refer to Granted publication
The patent of number CN202762476U.
Transfer belt feeder 9 is located at the position between the destructive distillation roller of roller retorting machine and the drying roller of roller drying machine,
For transmitting coal material after drying, to destructive distillation processing.8 one end of hot wind connecting tube is connected to the feed end of destructive distillation roller
Head, the other end are connected to the discharging end of drying roller, are used for heat air delivery.Drying roller and destructive distillation roller are arranged in parallel, and dry
U-shaped arrangement between 8 three of dry drum, destructive distillation roller and hot wind connecting tube.The principle category of destructive distillation roller and drying roller itself
In in the prior art, structure with the prior art main difference is that, (1), drying roller, destructive distillation roller will connect with hot wind
Adapter tube 8 is attached；(2), it is set in drying roller there are three workspace, a, guide area, drying roller inside is equipped with stock guide, spiral shell
Blade shape, radially it is straight panel in roller, material is rotated and is threadingly advanced；B, shovelling plate area, drying roller inside are equipped with
Shovelling plate, shovelling plate are L-type plate, are distributed along roll circumference；Coal is taken up to form material tentiform state by shovelling plate in the workspace, at this time coal
Material comes into full contact with hot wind, and the moisture in coal evaporates rapidly, and removing becomes vapor, and vapor is taken out by air-introduced machine immediately
It walks, achievees the purpose that coal drying；Coal is dried to loose condition (of surface) in the workspace, and material, which reaches, after heat exchange is wanted
The moisture state asked, into last discharge zone；C, discharge zone, drying roller do not set shovelling plate in the workspace, and inside is smooth
Section.As for the setting of stock guide, shovelling plate, similarly to the prior art, difference is, stock guide, the setting quantity of shovelling plate, indexing length
Degree, because discharge zone is not provided with shovelling plate.
Destructive distillation roller is driven by the first driving motor 19, the second driving motor 18 respectively with drying roller 10.Destructive distillation roller
Treadbelt corresponding with being equipped on drying roller, gear ring, driving motor pass through the transmission of gear, gear ring, drive roller rotation, rolling
The driving method of cylinder is common sense, belongs to the prior art.
The charging side of drying roller is arranged in charging belt machine 11, is used for feeding；Discharging belt conveyer 13 is arranged in destructive distillation
The side of the discharging of roller is used for discharging.Charging belt machine, discharging belt conveyer 13, transfer belt feeder 9 in the present embodiment are
Roller Belt Conveyor.
Coal drying, destructive distillation upgrading device further include sequentially connected cyclone dust collectors 14, bag filter, air-introduced machine,
The air inlet of cyclone dust collectors 14 and the discharging end of drying roller connect.Using cyclone dust collectors, bag filter, remove useless
Dust in gas.
Coal drying, destructive distillation upgrading device further include breaing up feeder 12, after its processing, are re-fed into charging belt machine
11.It breaks up feeder itself and belongs to the prior art.
The present invention is first dried again after using reverse-flow hot air seasoning and distillation process, coal to crush using drying roller
The mode of destructive distillation, to obtain the coal product for meeting quality requirement；Roller drying machine and roller retorting machine are used in series, and roller dries
Dry machine is dehydrated and gives coal heat temperature raising, and the pyrolysis of roller retorting machine, destructive distillation coal remove part volatile matter and interior water, obtain height
Calorific value, it is low volatilization, low pollution coal chemical industry coal.The present invention is using reverse-flow, and coal material and hot blast flow direction are on the contrary, as schemed
In 1 shown in two kinds of arrow, the high hot wind of temperature first with dry after, contact to the coal of destructive distillation, hot wind passes through heat again
Wind connecting tube flows in drying roller, to coal drying and processing.Drying, destructive distillation, using same hot air source, gradient utilizes hot wind
Temperature carries out heat exchange.
In other embodiments, hot air supplier can use direct-fired coal-fired hot-blast stove, belong to the prior art, direct-fired
Coal-fired hot-blast stove is made of coal burning machine, high temperature gas cleaning expansion chamber and wind mixed chamber.Or use biomass thermal wind furnace.
The present invention is not limited to above-mentioned preferred forms, anyone can show that other are various under the inspiration of the present invention
The product of form, however, make any variation in its shape or structure, it is all that there is skill identical or similar to the present application
Art scheme, is within the scope of the present invention.
Claims (10)
1. coal drying, destructive distillation method for upgrading, it is characterised in that: include the following steps, (1), starting hot air supplier generates heat
Wind；(2), hot wind is introduced into the destructive distillation roller of roller retorting machine under the action of air-introduced machine, and hot wind passes through hot wind connecting tube
The drying roller for entering back into roller drying machine starts charging belt when the temperature in destructive distillation roller reaches 800 degrees Celsius or more
Machine, discharging belt conveyer；(3), entered in drying roller to the coal of upgrading by charging belt machine, with the hot wind in roller into
Row heat exchange；(4), the coal come out from drying roller, is delivered in the destructive distillation roller by transfer belt feeder；(5), in destructive distillation
The water and removing part volatile matter hydrogen, oxygen species in coal are further decreased in roller, roller retorting machine is in anaerobic or oxygen deprivation
Under the conditions of, to coal pyrolysis destructive distillation；(6), the coal obtained after destructive distillation is transported by discharging belt conveyer to discharge zone.
2. coal drying according to claim 1, destructive distillation method for upgrading, it is characterised in that: coal drying, destructive distillation upgrading side
Method further includes step (7), is entered in cyclone dust collectors under air-introduced machine effect in the exhaust gas after entire destructive distillation, desiccation.
3. coal drying according to claim 2, destructive distillation method for upgrading, it is characterised in that: coal drying, destructive distillation upgrading side
Method further includes step (8), and the exhaust gas after preliminary dust removal is entered in sack cleaner by cyclone dust collectors, removes minute dusts；
Step (9), by sack cleaner treated exhaust gas, gone out by smoke stack emission.
4. coal drying according to claim 1, destructive distillation method for upgrading, it is characterised in that: in step (3), to upgrading
Coal first passes through the processing for breaing up feeder, enters back into the charging belt machine.
5. coal drying according to claim 1, destructive distillation method for upgrading, it is characterised in that: in step (3), drying roller
Tri- workspaces a, b, c, a, guide area are successively arranged, coal is introduced into the workspace and contacts with high-temperature hot-air, evaporates water rapidly
Point, coal is imported into next workspace in the case where stock guide is copied；B, shovelling plate area, coal take up shape by shovelling plate in the workspace
At material tentiform state, coal material comes into full contact with hot wind at this time, and the moisture in coal evaporates rapidly, reaches the mesh of coal drying
's；Coal is dried to loose condition (of surface) in the workspace, into last discharge zone；C, discharge zone, drying roller is in the work
Area does not set shovelling plate, and coal completes entire drying course in the workspace roll-sliding to discharge gate.
6. for implementing coal drying as described in claim 1, the coal drying of destructive distillation method for upgrading, destructive distillation upgrading device,
It is characterized in that: including hot air supplier, roller retorting machine, roller drying machine, charging belt machine, discharging belt conveyer, transfer belt
Machine, hot wind connecting tube, hot air supplier are connect by quirk with the side of the discharging of roller retorting machine；Transfer belt feeder is located at rolling
Position between the destructive distillation roller of cylinder retorting machine and the drying roller of the roller drying machine, for transmitting coal material；Hot wind
Connecting tube one end is connected to the charging end of destructive distillation roller, and the other end is connected to the discharging end of drying roller, for conveying heat
Wind；The charging side of drying roller is arranged in charging belt machine, is used for feeding；The discharging of destructive distillation roller is arranged in discharging belt conveyer
Side, be used for discharging.
7. coal drying according to claim 6, destructive distillation upgrading device, it is characterised in that: coal drying, destructive distillation upgrading are set
Standby further includes sequentially connected cyclone dust collectors, bag filter, air-introduced machine, and the air inlet of cyclone dust collectors and the drying are rolled
The discharging end connection of cylinder.
8. coal drying according to claim 6, destructive distillation upgrading device, it is characterised in that: the hot air supplier includes
Coal-powder boiler, coal drying, destructive distillation upgrading device further include raw coal feed bin, flour mill, and the feed opening of raw coal feed bin is located at flour mill
Feed inlet above, flour mill by expects pipe connect the coal-powder boiler with to coal-powder boiler for fuel.
9. coal drying according to claim 8, destructive distillation upgrading device, it is characterised in that: the hot air supplier also wraps
Hot-blast stove is included, coal-powder boiler is connect with hot-blast stove, and hot-blast stove is connect by the quirk with the side of the discharging of roller retorting machine.
10. according to the described in any item coal dryings of claim 6 to 9, destructive distillation upgrading device, it is characterised in that: the drying
Roller and destructive distillation roller are arranged in parallel, U-shaped arrangement between drying roller, destructive distillation roller and hot wind connecting tube three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811259621.6A CN109135787A (en) | 2018-10-26 | 2018-10-26 | Coal drying, destructive distillation method for upgrading and equipment |
Applications Claiming Priority (1)
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1437245A (en) * | 1972-11-17 | 1976-05-26 | Metallgesellschaft Ag | Process and apparatus for continuously heating fine-grained materials |
| CN201992959U (en) * | 2011-03-10 | 2011-09-28 | 郑州市鼎力干燥设备有限公司 | Coal slurry drying device |
| CN203068939U (en) * | 2013-01-23 | 2013-07-17 | 郑州市东鼎干燥设备有限公司 | Lignite quality improvement device |
| CN203569032U (en) * | 2013-10-22 | 2014-04-30 | 长安大学 | Coal carbonization device |
| WO2014139136A1 (en) * | 2013-03-13 | 2014-09-18 | Cai Jingpeng | Method for drying and low-temperature carbonization of lignite by steam heat conduction |
| CN209144075U (en) * | 2018-10-26 | 2019-07-23 | 郑州鼎力新能源技术有限公司 | Coal drying, destructive distillation upgrading device |
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2018
- 2018-10-26 CN CN201811259621.6A patent/CN109135787A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1437245A (en) * | 1972-11-17 | 1976-05-26 | Metallgesellschaft Ag | Process and apparatus for continuously heating fine-grained materials |
| CN201992959U (en) * | 2011-03-10 | 2011-09-28 | 郑州市鼎力干燥设备有限公司 | Coal slurry drying device |
| CN203068939U (en) * | 2013-01-23 | 2013-07-17 | 郑州市东鼎干燥设备有限公司 | Lignite quality improvement device |
| WO2014139136A1 (en) * | 2013-03-13 | 2014-09-18 | Cai Jingpeng | Method for drying and low-temperature carbonization of lignite by steam heat conduction |
| CN203569032U (en) * | 2013-10-22 | 2014-04-30 | 长安大学 | Coal carbonization device |
| CN209144075U (en) * | 2018-10-26 | 2019-07-23 | 郑州鼎力新能源技术有限公司 | Coal drying, destructive distillation upgrading device |
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Application publication date: 20190104 |