CN205590620U - Low temperature pyrolysis system of low order fine coal - Google Patents
Low temperature pyrolysis system of low order fine coal Download PDFInfo
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- CN205590620U CN205590620U CN201620405032.4U CN201620405032U CN205590620U CN 205590620 U CN205590620 U CN 205590620U CN 201620405032 U CN201620405032 U CN 201620405032U CN 205590620 U CN205590620 U CN 205590620U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model discloses a low temperature pyrolysis system of low order fine coal, store storehouse (13) and the cold burnt device (14) of fluidized bed including built -in hot fluidized bed dryer (2), cyclone (5), electrostatic precipitator (6), condenser (7), gas gas heater (9), coal low temperature pyrolysis device (11), dust remover (12), hot semicoke, the utility model discloses the coal gas purity of output is high, makes that outer coal supply gas is of high quality, the calorific value is high, and the tar yield is higher, has improved effective energy utilization and has rateed. The raw coal is dry dehydration back reentry dry distillation in this process systems, and then moisture is low in the coal gas, and purification and separation in -process waste water generates fewly, and reliable and simple is handled in the environmental protection, the quenching, dryly adopts closed endless form, the abundant recycle of waste heat among the process flow.
Description
Technical field
This utility model relates to Coal at Low Temperature retorting technique field, and the low temperature being specifically related to a kind of low order fine coal is done
Evaporate system.
Background technology
In coal, low temperature pyrogenation technology was through the development of more than 200 years, had defined more than 80 kind of manufacturing technique method,
The technology of comparative maturity also has certain quantity.
Brown coal class low order coal is applicable to low temperature distillation processing, is processed by low temperature distillation, is changed into by brown coal
Three kinds of products of gas, liquid, solid, have good economic benefit and social benefit.
Low temperature distillation technology is the currently acquired a kind of technology generally approved and pay attention to, and refers to coal in isolation
Air or be heated to 500-700 DEG C under conditions of having a small amount of air, decomposes produces coal gas, tar and half
Burnt process.
At present, in conventional coal, low temperature pyrogenation technique mainly has: exterior-heat vertical heater technique, the vertical furnaceman of interior-heat
Skill, the Toseoal technique of the U.S., Germany LR technique, Australia fluid bed fast pyrolysis technique,
The multistage rotary furnace technique of China, the solid thermal carriers technology of Dalian University of Technology, Zhejiang University exploitation with
Thermoelectricity gas multi-production process based on fluidized bed pyrolysis, the coke carried heat Gasification Polygeneration System work of Tsing-Hua University's exploitation
The cooperation that skill, the multi-production process of process institute of Chinese Academy of Sciences coal shifting block, Chinese Academy of Sciences's Shanxi coalification are developed is combined and is followed
The coal plug technique of environment-development electricity, double indoor circulation multi-production process etc. of Central China University of Science and Technology's exploitation.
Distillation process device is the capital equipment in low temperature distillation production technology, is divided into exterior-heat by its heat-supplying mode
Formula and internal heat type, as used by it, heat carrier form is divided into gas heat carrier and solid thermal carriers.
Traditional distillation process mostly is external-heat, and to guarantee the isolated heating of coal, volatility product is not diluted,
Thus obtain that composition is pure, calorific value is high, have more preferable value, such as propose hydrogen or the dry distilling of Coal Chemical Industry unstripped gas
Coal gas, but in there is stove, coal charge inequality of being heated causes semicoke quality irregular, and high temperature wall district easily occurs secondary to be pyrolyzed
Reduce tar yield, and equipment complexity invests the deficiencies such as big production capacity is little.
Internal heat type technique is made by conducting heat through block coal seam in the gas heat carriers such as flue gas are directly entered gas retort
, have that heat transfer is fast, efficiency height, homogeneous heating, equipment simple, invest the advantages such as relatively province, but exist and do
Evaporate coal gas to be diluted by gas heat carrier, cause discharged producer gas and the calorific value that gives gas outward is low, poor quality, business
The shortcomings such as value is the highest.
The main representative of the external vertical pyrolysis oven of internal heat type is Lu Qi-this Pierre Gai Si (L-S) low temperature pyrogenation stove,
Coal is descending in vertical heater, and air-flow is inversely passed through and is pyrolyzed.
Current domestic low temperature distillation Technology typically uses internal heat type or inside and outside composite type, all uses
Three sections of furnaceman's technologies of Lurgi-Spuelgas low temperature pyrogenation, coal can during being moved down by the top of stove
It is divided into three sections: be dryer section, pyrolysis section and semicoke cooling section respectively.
More in typical case, the distillation process device of exterior-heat combined type is straight by the SJ of Factory, Shenmu, Shanxi three river chemical research institute
Low temperature distillation stove in vertical.The tentatively sizing in 2000 of this pyrolysis oven technology, oneself divides at formation raw coal disposal ability at present
Not Wei 6-48 ten thousand t/a, low temperature distillation stove product line in the SJ of five kinds of type of furnaces, wherein uprightly do with SJ-III
Furnace is most widely used.Main technological features is: using the design of big cavity in stove, dryer section, pyrolysis section do not have
Have a strict boundary, dry distilling, be dried gas heat carrier regardless of；Red-hot semicoke enters furnace bottom water sealed tank, uses water-cooled
But, pulling plate and scrapper conveyor is used to derive pyrolysis product；Part raw coke oven gas and air are mixed into tracery wall in stove, warp
The ejection burning of tracery wall hole, generates the gas heat carrier of pyrolysis by coal cinder heating pyrolysis；Coal gas is by furnace roof gas collection
Umbrella is drawn and is entered cooling system.
At present, domestic block brown coal, bituminous coal or the xeothermic solution of the middle temperature of its moulded coal are mainly with the internal heat type of gas heat carrier
Vertical heater.Gas heat carrier internal heat type vertical heater uses 20-80mm bulk brown coal and bituminous coal, and (part brown coal need
Particle diameter is brought up to 50-150mm) and moulded coal, the inapplicable moderate cohesive of this type of furnace and high-adhesion cigarette
Coal.
Using Garrett technique for powder coal carbonization at present, it is a kind of pyrolysismethod.This technology is with heat half
Jiao is heat carrier, and the fine coal using below 200 mesh is raw material, make a living production fluid body and gaseous fuel and be applicable to
Design as the fuel of power boiler.
First feed coal is crushed to 200 mesh (75 μm) below by Garrett technique, and selects 650-870 DEG C
High-temperature semi-coke as heat carrier, by raw material coal dust the extremely short time (part second) be heated to 500 DEG C with
On be pyrolyzed, the time of staying be less than two seconds.Owing to this technique pyrolysis time of staying is short, it is possible to be effectively prevented
The twice decomposition of tar.Product yield and character depend primarily on the degree of coalification of feed coal, pyrolysis oil-producing
Optimum temperature range is narrow, and between 560 DEG C-580 DEG C, the bituminous coal of high volatile is at such a temperature
Oil productivity reaches as high as the 35% of dry coal, and pyrolysis temperature rises to more than 600 DEG C oil production and gradually decreases, aerogenesis
Amount is then gradually increased.
The advantage of Garrett technique mainly has: the short time quickly heats, and prevents the secondary of tar to be pyrolyzed, improves
The yield of tar；Part semicoke does heat carrier, and in air flow bed downlink cycle, the thermal efficiency is high.
The shortcoming of Garrett technique mainly has: tar and the dust semicoke of generation can be attached to cyclone and pipeline
Inwall, long-play can block pipeline；Contact between the semicoke of circulation and pan feeding coal, and fully carry out
Heat exchange can aggravate the Crushing of Ultrafine of coal, add the semicoke amount of circulation, the disposal ability making system coal cannot
Increase too many.
Utility model content
This utility model in order to solve in current retorting technique the application problem of the feed coal to fine grained diameter with
And energy consumption problem, devise coal be low-order coal or brown coal, granularity be the non-caking coal of 0-13mm or weak viscous
Knot coal, during the dry distillation of coal, the low temperature of the low order fine coal of maximized recovery coal tar and other product of coal
Distillation system, including built-in fluidized hot bed dryer 2, cyclone separator 5, electrostatic precipitator 6, condenser
7, flue gas heat-exchange unit 9, coal low temperature distillation device 11, cleaner unit 12, hot semicoke storage warehouse 13 and fluid bed
Cold coke installation 14, described built-in fluidized hot bed dryer 2, and built-in fluidized hot bed dryer 2 be provided with into
Coal mouth 3, fluidized wind outlet 4 and coal outlet, coal outlet is connected with coal low temperature distillation device 11, and fluidized wind goes out
Mouth 4 is connected with cyclone separator 5, electrostatic precipitator 6, condenser 7 and the cold coke installation of fluid bed 14 successively,
Cyclone separator 5 and electrostatic precipitator 6 are provided with fine breeze outlet, fine breeze outlet and built-in fluidized hot bed
The coal outlet of drying machine 2 is all connected with coal low temperature distillation device 11；Set on described coal low temperature distillation device 11
Having exhanst gas outlet and semicoke outlet, semicoke outlet is connected with hot semicoke storage warehouse 13, exhanst gas outlet and flue gas
Heat exchanger 9 connects, and hot semicoke storage warehouse 13 coke installation cold with fluid bed 14 is connected；Flue gas heat-exchange unit 9 with
Built-in fluidized hot bed dryer 2 connects；The cold coke installation of fluid bed 14 is provided with cooling semicoke outlet and hot dust-laden
Wind exports, and the outlet of hot dust-laden wind is connected with built-in fluidized hot bed dryer 2.
The low-temperature carbonization system of this utility model low order fine coal, is arranged in described built-in fluidized hot bed dryer 2
Hot water heat exchanger, the hot water outlet of flue gas heat-exchange unit 9 is connected with hot water heat exchanger, hot water heat exchanger conduct
The auxiliary thermal source of drying and dehydrating, its heat-exchange working medium is high-temperature-hot-water or low-pressure steam, and inlet temperature controls
150 DEG C, leaving water temperature is down to 80 DEG C, and its heat comes from flue gas heat-exchange unit.
The low-temperature carbonization system of this utility model low order fine coal, the exhanst gas outlet of flue gas heat-exchange unit 9 and chimney 1
Connect.
The low-temperature carbonization system of this utility model low order fine coal, described coal low temperature distillation device 11 uses external-heat
Moving bed structural shape, is mainly formed by stacking by several dry distilling modules, and its number determines that coal is in carbonizing chamber
Retorting time, coal the holdup time of carbonizing chamber relate to coal, coal charge early stage drying and dehydrating degree and
The factors such as heating chamber and its heat-transfer effect.Each dry distilling module is used heat-resisting by some carbonizing chambers and heating chamber
Steel plate interval and set, be transversely provided with some fins in heating chamber, strengthen fume side heating surface area, with strengthen with
The caloric receptivity of high-temperature flue gas, by the heating surface being connected with carbonizing chamber, is conducted to flue gas heat in carbonizing chamber
Dry coal, it is achieved the low temperature distillation of coal.Each carbonizing chamber bottom is provided with the gas collection oil collector sump tank of equilateral triangle,
For reclaiming coal tar and the pyrolysis coal gas that dry distilling in coal decomposes out.Hot semicoke storage warehouse 13 is arranged on coal
The semicoke exit, bottom of low temperature distillation device 11, is used for buffering destructive distillation device and cools down with fluidized bed type semicoke
The coke flow of device, coordinates dry distilling production and the rhythm of heat Jiao cooling.
The low-temperature carbonization system of this utility model low order fine coal, the hot dust-laden wind of the cold coke installation of described fluid bed 14
Outlet is outer is also connected with a cleaner unit 12.
The low-temperature carbonization system of this utility model low order fine coal, at cleaner unit 12 and built-in fluidized hot bed dryer
It is provided with the first circulating fan 10 between 2, is provided with second between condenser 7 and the cold coke installation of fluid bed 14 and follows
Ring blower fan 15.
In use, feed coal is dried dehydration by built-in fluidized hot bed drying machine to this utility model
Rear discharge contains wet tail gas and dry coal, and drying machine dust-laden out enters cyclone separator containing wet tail gas and electrostatic removes
Dirt device, separates the fine breeze carried out by fluidized wind in dry run, by process pipe with dry
Entering in the carbonizing chamber in dry distillation of coal device after the mixing of machine out dry coal, dry coal goes out the temperature of drying machine and keeps
At about 100 DEG C, then immediately proceed to high-temperature heating section in destructive distillation device, at a temperature of 500-600 DEG C
Carry out dry distilling, about 1.5 hours whole service time, output semicoke, coal tar and pyrolysis coal gas, the thermal treatment zone
Temperature adjusting relates to semicoke fugitive constituent span of control.And the fluidized wind warp that built-in fluidized hot bed dryer 2 is out
After condensation dehydration, after temperature is down to 80 DEG C, introduce the cold coke installation of fluid bed by the second circulating fan 15
In 14, heating temperature raising during by cooling down scorching hot semicoke, then from the cold coke installation of fluid bed 14 out through dedusting
Device 12 dedusting, hot-fluid wind-transformation out passes through the first circulating fan 10 in hot-fluid fluidized wind import 8 introduces
Put the carrier that the fluidized hot interior fluidized drying as coal of bed dryer 2 is dehydrated, form one with fluidized wind therein
The series circulation loop of Guan Bi.
The fluidized-bed combustion boiler that required thermal source is arranged by outside uses high-temperature flue gas produced by semicoke, is directly entered
Heating chamber in coal low temperature distillation device, the flow direction of flue gas and the flow direction of feed coal are reverse flow state, and flue gas exists
Transferred heat to the feed coal of carbonizing chamber in heating chamber by the method for conduction of heat, make coal charge pyrogenation and carbonization become
Becoming semicoke, the input gas temperature of coal low temperature distillation device 11 is 650 DEG C, and exiting flue gas is 300 DEG C, goes out
Mouthful flue gas enters in flue gas heat-exchange unit 9, and the hot water producing 140-160 DEG C is dried as built-in fluidized hot bed
The thermal source of machine 2, by with hydrothermal exchange after, flue-gas temperature is discharged by chimney 1 after being down to 120 DEG C.
The beneficial effects of the utility model are:
1. this utility model uses the drying and dehydrating of the outer feed coal of totally enclosed destructive distillation device, and destructive distillation device designs
For moving bed pattern, the dry distillation of coal is continuous production form, and uses external combustion interior-heat mode of heating, and uses carbon
Change bottom, room and be provided with the gas collection oil collector sump tank of equilateral triangle, shorten coal charge low temperature distillation in gas retort
Time, give full play to the maximum production capacity of gas retort, improve product yield and quality, it is important that improve tar
Productivity, during the dry distillation of coal, reclaims coal tar substantially.
2. low temperature distillation device uses external-heat moving bed structural shape, if being formed by stacking by individual dry distilling module,
Its number determines coal retorting time in carbonizing chamber, by coal charge early stage drying and dehydrating degree and heating chamber
Heat transfer enhancement technology measure so that feed coal is in intensification minimizing heat time heating time of carbonizing chamber.
3. in this utility model, fluidized wind passes through the desiccant dehumidification to raw coal, fine breeze is reclaimed in dedusting, condensation is de-
Water, by cooling down after scorching hot semicoke, the technique of the energy recycling that heating temperature raising defines a Guan Bi is returned
Road, required energy is by the heat recovery in technological process.
Dry distillation of coal device the most of the present utility model uses and is heated by partition, and high-temperature retorting coal gas is not diluted, and carries
High calorific value of gas, provides convenient for coal gas later use.
The drying and dehydrating of feed coal the most of the present utility model, dry distilling coking, tar coal-gas recovering and technique stream
In journey, heat recovery is airtight closed circuit, improves the feature of environmental protection and the energy saving of technique.
This utility model have employed moving bed pattern destructive distillation device, is particularly well-suited to low-grade fine coal, output
Coal gas purity high, make outer to give gas that quality is good, calorific value is high, using value is high, be preferable industrial chemicals
Or high product fuel；Carbonizing chamber uses thin space separately with heating chamber, and coal charge is relatively low by temperature and is heated evenly,
Heat transfer rate is fast, and tar yield is higher；Use drying and dehydrating device separately positioned with destructive distillation device, system thermal
Staggered use can be circulated in source, improves effective utilization rate of energy.
Reenter dry distilling after raw coal drying and dehydrating in the present system, then in coal gas, moisture is low, during purification separation
Waste water generates few, and environmental protection treatment is simple.Quenching, the dry endless form using Guan Bi, technological process
Middle waste heat is fully recycled.
Accompanying drawing explanation
This utility model will illustrate by example and with reference to the appended drawing, wherein:
Fig. 1 is schematic diagram of the present utility model.
Detailed description of the invention
All features disclosed in this specification, or disclosed all methods or during step, except mutually
Beyond the feature repelled mutually and/or step, all can combine by any way.
Any feature disclosed in this specification, unless specifically stated otherwise, all can by other equivalence or have similar
The alternative features of purpose is replaced.I.e., unless specifically stated otherwise, each feature is a series of equivalence or class
Like an example in feature.
The low-temperature carbonization system of low order fine coal as shown in Figure 1, including built-in fluidized hot bed dryer 2, whirlwind
Separator 5, electrostatic precipitator 6, condenser 7, flue gas heat-exchange unit 9, coal low temperature distillation device 11, dedusting
Device 12, hot semicoke storage warehouse 13 and the cold coke installation of fluid bed 14, described built-in fluidized hot bed dryer 2,
And built-in fluidized hot bed dryer 2 is provided with coal feed point 3, fluidized wind outlet 4 and coal outlet, coal outlet with
Coal low temperature distillation device 11 connects, fluidized wind outlet 4 successively with cyclone separator 5, electrostatic precipitator 6,
Condenser 7 and the cold coke installation of fluid bed 14 connect, and cyclone separator 5 and electrostatic precipitator 6 are provided with carefully
Discharge, fine breeze outlet and built-in fluidized hot bed dryer 2 coal outlet all with coal low temperature distillation device
11 connect；Described coal low temperature distillation device 11 is provided with exhanst gas outlet and semicoke outlet, semicoke outlet and heat
Semicoke storage warehouse 13 connects, and exhanst gas outlet is connected with flue gas heat-exchange unit 9, hot semicoke storage warehouse 13 and fluidisation
The cold coke installation 14 of bed connects；Flue gas heat-exchange unit 9 is connected with built-in fluidized hot bed dryer 2；Fluid bed is cold
Coke installation 14 is provided with cooling semicoke outlet and hot dust-laden wind exports, the outlet of hot dust-laden wind and built-in fluidized hot bed
Drying machine 2 connects.
Being provided with hot water heat exchanger in described built-in fluidized hot bed dryer 2, the hot water of flue gas heat-exchange unit 9 goes out
Mouth is connected with hot water heat exchanger, and hot water heat exchanger is as the auxiliary thermal source of drying and dehydrating, and its heat-exchange working medium is high
Warm water or low-pressure steam, inlet temperature controls at 150 DEG C, and leaving water temperature is down to 80 DEG C, its heat from
In flue gas heat-exchange unit.
Described coal low temperature distillation device 11 uses external-heat moving bed structural shape, mainly by several dry distilling moulds
Block is formed by stacking, and its number determines coal retorting time in carbonizing chamber, and coal related in the holdup time of carbonizing chamber
And to factors such as coal, coal charge early stage drying and dehydrating degree and heating chamber and its heat-transfer effects.Each dry
Evaporating module is used heatproof steel plate interval to set by some carbonizing chambers and heating chamber, is transversely provided with some in heating chamber
Fin, strengthens fume side heating surface area, to strengthen the caloric receptivity with high-temperature flue gas, by being connected with carbonizing chamber
Heating surface, the dry coal that flue gas heat is conducted in carbonizing chamber, it is achieved the low temperature distillation of coal.Each carbonization
Bottom, room is provided with the gas collection oil collector sump tank of equilateral triangle, for reclaiming the coal tar that dry distilling in coal decomposes out
With pyrolysis coal gas.Hot semicoke storage warehouse 13 is arranged on the semicoke exit, bottom of coal low temperature distillation device 11,
For buffering the coke flow of destructive distillation device and fluidized bed type Semi-coke cooling device, coordinate dry distilling production and heat is burnt
The rhythm of cooling.
The hot dust-laden wind outlet of the cold coke installation of described fluid bed 14 is outer is also connected with a cleaner unit 12, at cleaner unit
Being provided with the first circulating fan 10 between 12 and built-in fluidized hot bed dryer 2, condenser 7 and fluid bed are cold
The second circulating fan 15 it is equipped with between coke installation 14.
In use, feed coal is dried dehydration by built-in fluidized hot bed drying machine to this utility model
Rear discharge contains wet tail gas and dry coal, and drying machine dust-laden out enters cyclone separator containing wet tail gas and electrostatic removes
Dirt device, separates the fine breeze carried out by fluidized wind in dry run, by process pipe with dry
Entering in the carbonizing chamber in dry distillation of coal device after the mixing of machine out dry coal, dry coal goes out the temperature of drying machine and keeps
At about 100 DEG C, then immediately proceed to high-temperature heating section in destructive distillation device, at a temperature of 500-600 DEG C
Carry out dry distilling, about 1.5 hours whole service time, output semicoke, coal tar and pyrolysis coal gas, the thermal treatment zone
Temperature adjusting relates to semicoke fugitive constituent span of control.And the fluidized wind warp that built-in fluidized hot bed dryer 2 is out
After dehumidification by condensation, after temperature is down to 80 DEG C, introduce the cold coke installation of fluid bed 14 by the second circulating fan
In, heating temperature raising during by cooling down scorching hot semicoke, then from the cold coke installation of fluid bed 14 out through cleaner unit
12 dedustings, hot-fluid wind-transformation out introduces built-in hot-fluid by the first circulating fan from hot-fluid fluidized wind import 8
Change the carrier that the interior fluidized drying as coal of bed dryer 2 is dehydrated, form a Guan Bi with fluidized wind therein
Series circulation loop.
The fluidized-bed combustion boiler that required thermal source is arranged by outside uses high-temperature flue gas produced by semicoke, is directly entered
Heating chamber in coal low temperature distillation device, the flow direction of flue gas and the flow direction of feed coal are reverse flow state, and flue gas exists
Transferred heat to the feed coal of carbonizing chamber in heating chamber by the method for conduction of heat, make coal charge pyrogenation and carbonization become
Becoming semicoke, the input gas temperature of coal low temperature distillation device 11 is 650 DEG C, and exiting flue gas is 300 DEG C, goes out
Mouthful flue gas enters in flue gas heat-exchange unit 9, and the hot water producing 140-160 DEG C is dried as built-in fluidized hot bed
The thermal source of machine 2, and by with hydrothermal exchange after, flue-gas temperature be down to 120 DEG C after by with flue gas heat-exchange unit
The chimney 1 that outlet connects is discharged.
This utility model is not limited to aforesaid detailed description of the invention.This utility model expands to any at this
In description disclose new feature or any new combination, and disclose arbitrary new method or the step of process
Rapid or any new combination.
Claims (6)
- null1. the low-temperature carbonization system of a low order fine coal，It is characterized in that: include built-in fluidized hot bed dryer (2)、Cyclone separator (5)、Electrostatic precipitator (6)、Condenser (7)、Flue gas heat-exchange unit (9)、Coal low temperature distillation device (11)、Cleaner unit (12)、Hot semicoke storage warehouse (13) and the cold coke installation of fluid bed (14)，Described built-in fluidized hot bed dryer (2)，And built-in fluidized hot bed dryer (2) is provided with coal feed point (3)、Fluidized wind outlet (4) and coal outlet，Coal outlet is connected with coal low temperature distillation device (11)，Fluidized wind outlet (4) successively with cyclone separator (5)、Electrostatic precipitator (6)、Condenser (7) and the cold coke installation of fluid bed (14) connect，Cyclone separator (5) and electrostatic precipitator (6) are provided with fine breeze outlet，The coal outlet of fine breeze outlet and built-in fluidized hot bed dryer (2) is all connected with coal low temperature distillation device (11)；Described coal low temperature distillation device (11) is provided with exhanst gas outlet and semicoke outlet, and semicoke outlet is connected with hot semicoke storage warehouse (13), and exhanst gas outlet is connected with flue gas heat-exchange unit (9), and hot semicoke storage warehouse (13) coke installation cold with fluid bed (14) is connected；Flue gas heat-exchange unit (9) is connected with built-in fluidized hot bed dryer (2)；The cold coke installation of fluid bed (14) is provided with cooling semicoke outlet and hot dust-laden wind exports, and the outlet of hot dust-laden wind is connected with built-in fluidized hot bed dryer (2).
- The low-temperature carbonization system of low order fine coal the most according to claim 1, is characterized in that: being provided with hot water heat exchanger in described built-in fluidized hot bed dryer (2), the hot water outlet of flue gas heat-exchange unit (9) is connected with hot water heat exchanger.
- The low-temperature carbonization system of low order fine coal the most according to claim 2, is characterized in that: the exhanst gas outlet of flue gas heat-exchange unit (9) is connected with chimney (1).
- The low-temperature carbonization system of low order fine coal the most according to claim 1, it is characterized in that: described coal low temperature distillation device (11) is mainly formed by stacking by several dry distilling modules, each dry distilling module is used heatproof steel plate interval to set by some carbonizing chambers and heating chamber, being transversely provided with some fins in heating chamber, each carbonizing chamber bottom is provided with the gas collection oil collector sump tank of equilateral triangle.
- The low-temperature carbonization system of low order fine coal the most according to claim 1, is characterized in that: the hot dust-laden wind outlet of the cold coke installation of described fluid bed (14) is outer is also connected with a cleaner unit (12).
- The low-temperature carbonization system of low order fine coal the most according to claim 5, it is characterized in that: between cleaner unit (12) and built-in fluidized hot bed dryer (2), be provided with the first circulating fan (10), between condenser (7) and the cold coke installation of fluid bed (14), be provided with the second circulating fan (15).
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| CN201620405032.4U CN205590620U (en) | 2016-05-04 | 2016-05-04 | Low temperature pyrolysis system of low order fine coal |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106731372A (en) * | 2016-11-23 | 2017-05-31 | 合肥齐飞信息技术有限公司 | A kind of industrial gas purifying cleaner |
| CN115305104A (en) * | 2022-03-04 | 2022-11-08 | 陕西东鑫垣化工有限责任公司 | Semi coke drying and rotary kiln secondary pyrolysis purification process |
-
2016
- 2016-05-04 CN CN201620405032.4U patent/CN205590620U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106731372A (en) * | 2016-11-23 | 2017-05-31 | 合肥齐飞信息技术有限公司 | A kind of industrial gas purifying cleaner |
| CN115305104A (en) * | 2022-03-04 | 2022-11-08 | 陕西东鑫垣化工有限责任公司 | Semi coke drying and rotary kiln secondary pyrolysis purification process |
| CN115305104B (en) * | 2022-03-04 | 2023-12-05 | 陕西东鑫垣化工有限责任公司 | Semi-coke drying and rotary kiln secondary pyrolysis purification process |
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