CN105062523B - A kind of fine coal upgrading pyrolysis installation and upgrading pyrolytic process - Google Patents
A kind of fine coal upgrading pyrolysis installation and upgrading pyrolytic process Download PDFInfo
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- CN105062523B CN105062523B CN201510459750.XA CN201510459750A CN105062523B CN 105062523 B CN105062523 B CN 105062523B CN 201510459750 A CN201510459750 A CN 201510459750A CN 105062523 B CN105062523 B CN 105062523B
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Abstract
The present invention relates to coal chemical technology more particularly to field of energy utilization.The present invention provides a kind of fine coal upgrading pyrolysis installation and the technique using the device, it includes coal dropping port, including coal dropping port, upgrading furnace body, outlet gas line, gas vent, it is characterized in that, the upgrading furnace interior is provided with band tooth driving wheel, band tooth steel band, and the band tooth steel band is heat medium；The fine coal is entered by coal dropping port in the upgrading furnace body, is fallen on the hot band tooth steel band, and as the movement with tooth steel band is sent to the other end of the upgrading furnace body, realize the upgrading pyrolytic reaction of fine coal.The present invention can solve low utilization ratio in fine coal grading process, easy firing, serious technical problem be lost.
Description
Technical field
The present invention relates to coal chemical technology more particularly to field of energy utilization, and in particular to a kind of fine coal device for improving quality and work
Skill.
Background technology
It is how efficient and rational using coal resources recently as the worsening of the northern area of China atmospheric environment, it keeps away
Exempt from coal directly to burn using the attention for increasingly having obtained domestic scholars, and it is high additional by the production of the method for improving quality of coal by pyrolysis
Value product is effective way that is clean, efficiently utilizing coal resources.The domestic equipment for improving quality of coal by pyrolysis mainly has at present
Vertical retort and fixed heat carrier dry distillation of coal fluid bed etc., for vertical retort with largest, equipment is simple, throws
Provide less, but there is also many disadvantages, i.e., can only use lump coal, and the calorific value of gas of generation is low, and cannot function as industrial chemicals and make
With, and it is technically still not mature enough to fix heat carrier dry distillation of coal fluid bed, it can not large-scale promotion.Also have many mechanisms and
Scholar's research carries out improving quality of coal by pyrolysis using rotary furnace equipment, and low, oil productivity and factor of created gase are high, can locate with investing for the equipment
The advantages that managing fine coal, therefore there is good foreground, obtained more and more attention.
Coal process for upgrading is mainly mainly adopted including distillation process and drying process for fine coal upgrading technology at present
It is usually only capable of handling the powder of granularity 1mm or more with fluidized-bed process, vibration bed process, solid thermal carriers technique, but above-mentioned technology
Coal, some even require the particle of grain size bigger, and for the smaller fine coal of grain size, due to the generation of dust in processing procedure,
Burning so that submit the defects of efficiency is low, equipment loss is serious.In grading process, used heat carrier is respectively hot cigarette
Gas, high-temperature semi-coke, pate dure ball or high temperature coal ash.
For that can carry a large amount of dust in gas heat carrier, raw coke oven gas, and calorific value is relatively low；For solid thermal carriers, carry
Body thermal coefficient is poor, and heat exchange rate is slow, efficiency is low, and heat carrier is sufficiently mixed with feed coal needs, otherwise product quality
It is difficult to stablize, increases so as to cause operation power.Low-order coal (such as lignite) had been stirred since its intensity is poor
Cheng Zhonghui increases breakage rate, causes serious loss.
CN203976719U discloses a kind of internal heat type fine coal destructive distillation rotary furnace, and heat carrier is installed in the furnace body,
The heat carrier can store heat after being heated, in furnace body turning course, fine coal flows through the heat carrier heated and realizes fine coal destructive distillation.
CN201358172Y discloses a kind of improved microwave heating type cracking furnace, and activity is realized using microwave heating
The cracking of charcoal, specifically, being provided with the microwave radiation wall for heated material, the microwave radiation wall energy and control in pyrolysis oven room
Port processed is pierced by from being slidingly sealed on cover board, be arranged it is external in pyrolysis oven, with the mating microwave generator of microwave radiation wall
Connection.
CN102803851A discloses one kind for operating continuously pyrolysis reactor, and the material in supplying duct therein is logical
It crosses the slope that the first screw-conveyor is fed into conduit and is passed to further second screw rod of at least one of feed conduit
Device, feed conduit is sent to be connected to supplying duct, wherein the driven speed of the second conveyer is driven less than the first conveyer
Speed, and it is provided with heating element at the top of the hot-zone of reactor, as the heat source of pyrolytic reaction, conveyer belt, which carries, to be pyrolyzed
Material is through overheated zone, and the segment being pyrolyzed is kept for about 3 minutes in the chamber, and middle chamber keeps about 550 in hot-zone 13
Degree Celsius substantially constant temperature realize pyrolytic reaction.
However, still can not to solve low utilization ratio during pulverized coal pyrolysis, easy firing, loss serious for the above-mentioned prior art
The technical issues of.
Invention content
The present invention exactly in view of the above shortcomings of the prior art, provides a kind of pulverized coal pyrolysis upgrading furnace and technique, Neng Gouyou
Effect ground improves the utilization ratio of fine coal, overcomes utilization ratio in the fine coal grading process for grain size less than 1mm in the prior art
The serious technical problem of low, easy firing, loss.
In order to solve the above technical problems, the present invention provides a kind of pulverized coal pyrolysis upgrading furnace, including coal dropping port (1), upgrading furnace
Body (2), outlet gas line (3), gas vent (4), which is characterized in that the upgrading furnace body (2) is internally provided with band tooth and drives
Driving wheel (5), band tooth steel band (6), the band tooth steel band (6) are heat medium；
The fine coal is entered by coal dropping port (1) in the upgrading furnace body (2), and the hot band tooth steel band (6) is fallen into
On, and as the movement of the band tooth steel band (6) is sent to the other end of the upgrading furnace body (2), realize the upgrading heat of fine coal
Solution reaction.
Preferably, setting heat exchanger (9) inside the upgrading furnace body (2), realizes the heating to the band tooth steel band (6),
The heat exchanger (9) is arranged in the lower part of the band tooth steel band (6).
Preferably, the heat exchanger (9) is provided with smoke inlet pipeline (10) and exhanst gas outlet pipeline (8).
Preferably, the upgrading hot stove is set as multiple and is used in series, by the fine coal of previous upgrading pyrolysis oven from described
The feed opening (7) of previous upgrading pyrolysis oven is discharged, and enters the coal dropping port of latter upgrading pyrolysis oven, by the latter upgrading heat
The coal dropping port of solution stove falls on the hot band tooth steel band inside the latter upgrading pyrolysis oven and completes pyrolytic process, then from described
The coal dropping port of latter upgrading pyrolysis oven is discharged, until the last one carries hot pyrolysis oven.
Preferably, internal in the same upgrading furnace body (2), the band tooth steel band (6), the heat exchanger (9) setting
For multigroup series connection, previous group band tooth steel band installation position is higher than later group band tooth steel band, and end of the previous group with tooth steel band is with after
There are one section of overlapping regions for one group of front end with tooth steel band so that previous group is moved through the fine coal come with tooth steel band and can fall on down
On next group of band tooth steel band, successively forward, until the upgrading furnace body (2) is discharged in the feed opening by the upgrading furnace body.
Preferably, the band tooth steel band (6) can be realized and is engaged at different temperatures with tooth driving wheel (5).
Preferably, what is be discharged from the feed opening (7) passes through cold burnt device (17) from the fine coal being pyrolyzed is fallen.
Preferably, the purified gas burning that the heat source of the heat exchanger (9) generates in grading process；Or, from independent
The burning hot-blast stove of foundation；Or, the heat that burning other materials generate.
Preferably, raw material fine coal enters upgrading furnace body (2) inside by coal dropping port (1), falls on band tooth steel band (6), with
The movement for hot band tooth steel band (6) is sent to the other end of the upgrading furnace body (2), realizes that the upgrading pyrolysis of fine coal is anti-
It answers.
The present invention further also provides a kind of improving quality of coal by pyrolysis technique using present invention pyrolysis upgrading furnace above-mentioned, special
Sign is that raw material fine coal enters upgrading furnace body (2) inside by coal dropping port (1), falls on band tooth steel band (6), with hot
Movement with tooth steel band (6) is sent to the other end of the upgrading furnace body (2), realizes the upgrading pyrolytic reaction of fine coal.
Preferably, setting heat exchanger (9) inside the upgrading furnace body (2), realizes the heating to the band tooth steel band (6),
The heat exchanger (9) is arranged in the lower part of the band tooth steel band (6)；
The heat exchanger (9) is provided with smoke inlet pipeline (10) and exhanst gas outlet pipeline (8)；
The high-temperature flue gas from hot-blast stove (14) enters after thermosistor (15) is adjusted to temperature appropriate from flue gas
Mouth pipeline (10) enters heat exchanger (9), completes heat exchange with band tooth steel band (6), will be heated to tooth steel band (6) suitable for completion
It is pyrolyzed the temperature of upgrading reaction, the flue gas for completing heat exchange is transmitted using exhanst gas outlet pipeline (8) by air-introduced machine (16), warp
It crosses the first valve (18) directly emptying or is recycled to after thermosistor (15) reheats by the second valve (19) and is transported to again
Heat exchanger (9) is completed to recycle；Fine coal by being pyrolyzed grading process processing falls on feed opening under the end with tooth steel band
(7), it is discharged from upgrading furnace body (2) by feed opening (7), cooling is realized through the burnt device (17) of supercooling.
Preferably, fine coal generates coal gas of high temperature from gas after realizing pyrolysis upgrading reaction in upgrading furnace body (2)
It exports (4) to be discharged by outlet gas line (3), passes through deduster (11), cooler (12), pressuring machine (13) successively, added
Enter hot-blast stove (14) after pressure, enters heat exchange heat exchanger (9) from smoke inlet pipeline (10) after thermosistor (15), then from cigarette
Gas outlet line (8) is discharged, and is delivered to the first valve (18) emptying via air-introduced machine (16), or recycle by the second valve (19)
The recycling of heat source is realized to thermosistor (15).
Preferably, internal in the same upgrading furnace body (2), the band tooth steel band (6), the heat exchanger (9) setting
For multigroup series connection, previous group band tooth steel band installation position is higher than later group band tooth steel band, and end of the previous group with tooth steel band is with after
There are one section of overlapping regions for one group of front end with tooth steel band so that previous group is moved through the fine coal come with tooth steel band and can fall on down
On next group of band tooth steel band, successively forward, until the upgrading furnace body (2) is discharged in the feed opening by the upgrading furnace body；
Each heat exchanger has independent smoke inlet pipeline and exhanst gas outlet pipeline, each smoke inlet pipeline
It is connected to thermosistor (15), each exhanst gas outlet pipeline is connected to the first valve (18) emptying, or by the second valve (19)
Thermosistor (15) realization is recycled to recycle.
Preferably, internal in the same upgrading furnace body (2), the band tooth steel band (6), the heat exchanger (9) setting
For multigroup series connection, previous group band tooth steel band installation position is higher than later group band tooth steel band, and end of the previous group with tooth steel band is with after
There are one section of overlapping regions for one group of front end with tooth steel band so that previous group is moved through the fine coal come with tooth steel band and can fall on down
On next group of band tooth steel band, successively forward, until the upgrading furnace body (2) is discharged in the feed opening by the upgrading furnace body；
Heat source gas is passed through the smoke inlet pipeline of First Heat Exchanger, then the cigarette from the First Heat Exchanger from thermosistor (15)
Gas outlet line enters the smoke inlet pipeline of the second heat exchanger in turn, makes the smoke outlet tube of a heat exchanger by this method
Line connects with the smoke inlet pipeline of next heat exchanger, and to the last the exhanst gas outlet pipeline of a heat exchanger is ultimately connected to
One valve (18) empties, or is recycled to thermosistor (15) realization by the second valve (19) and recycles.
Preferably, the upgrading pyrolysis oven is set as multiple and is used in series, by the fine coal of previous upgrading pyrolysis oven from institute
Feed opening (7) discharge for stating previous upgrading pyrolysis oven, enters the coal dropping port of latter upgrading pyrolysis oven, by the latter upgrading
The coal dropping port of pyrolysis oven, which is fallen on the hot band tooth steel band inside the latter upgrading pyrolysis oven, completes pyrolytic process, then from institute
The coal dropping port discharge for stating latter upgrading pyrolysis oven, until the last one carries hot pyrolysis oven；
The heat source gas come out from thermosistor (15) is carried by way of in parallel for the heat exchanger of each upgrading pyrolysis oven
Heating load, or heat exchanger by concatenated mode for each upgrading pyrolysis oven provide heat；
From the gas collection that the exhanst gas outlet pipeline of the heat exchanger of each upgrading pyrolysis oven is discharged to passing through air inducing together
Machine (16) is vented by the first valve (18), or is recycled to thermosistor (15) realization by the second valve (19) and is recycled.
Beneficial effects of the present invention：
(1) pyrolysis upgrading furnace of the invention uses band tooth steel band as heat medium, and steel band obtains heat first, increases temperature
Fine coal is heated after degree, is reheated again after completing heat exchange to realize being carried out continuously for upgrading reaction, utilizes band
Tooth steel band can ensure that fine coal realizes sufficient heat exchange in transmission process as heat medium, improve the upgrading effect of fine coal
Rate, and since flue gas is by heat exchange heating tape tooth steel band, there is no the corrosion and abrasion to equipment；
(2) pyrolysis upgrading furnace of the invention uses the mode of heating of external-heat, fine coal can be avoided to be in direct contact with air,
So that in being pyrolyzed upgrading reaction process, the generation of dust is reduced or avoided, into the pulverized coal friring without making small particle, thus
Broken, the loss for reducing fine coal raw material to greatest extent, improve the safety of system operation, improve the effect of pulverized coal pyrolysis upgrading
Rate, and as a result of the mode of heating of external-heat is not present reacting for air and carbon, drops to greatest extent during the reaction
Low carbon loss improves system operation safety；
(3) pyrolysis upgrading furnace of the invention is using band tooth steel band as heat carrier, due to itself being equally fine coal raw material
Transport agent, and can be in direct contact with fine coal raw material, therefore, heat transfer rate is fast, heat exchange efficiency is high, and whole equipment
It is run in confined space, heat loss is small；
(4) pyrolysis upgrading furnace of the invention can also be by carrying out recycling profit to coal gas of high temperature caused by fine coal upgrading
With as the high-temperature flue gas of heating tape tooth steel band, that is, ensure that and do not cause corrosion, wear to steel band, and can realize resource
It efficiently uses, there is environmentally protective important meaning.
(5) pyrolysis upgrading furnace of the invention has modular construction, and extended capability is strong, can both increase in same upgrading furnace
Add steel band quantity or increase steel band length, can also more upgrading furnace series operations, it is adaptable to raw coal particle,
Grain is smaller, upgrading effect is better.
(6) the band tooth driving wheel in pyrolysis upgrading furnace of the invention is arranged outside heat exchanger, facilitates cooling, improves and use
Service life.
(7) pyrolysis upgrading furnace of the invention is due to being provided with temperature controlling unit so that its reaction temperature is adjustable, Neng Gouman
The different reaction requirement of foot, both can individually be dried or destructive distillation, can also be carried out at the same time dry and retorting operation.
(8) pyrolysis upgrading furnace of the invention can be used in series, and band tooth steel band therein also can with heat exchanger mating portions
It is enough to be used in pyrolysis upgrading furnace internal series-connection, and the heat supply of multi-group heat exchanger may be used mode in series or in parallel,
This can realize efficiently using for heat, so that coal is more fully realized pyrolysis grading process, improve utilization ratio.
Description of the drawings
Fig. 1 is a kind of embodiment of present invention pyrolysis upgrading furnace, and high-temperature flue gas is used to be heated for band tooth steel band；
Fig. 2 is the another embodiment of present invention pyrolysis upgrading furnace, uses the coal gas of high temperature of pyrolysis upgrading furnace recycling
It is heated for band tooth steel band；
Fig. 3-4 is that there are multiple embodiments being used in series with tooth steel band in pyrolysis upgrading furnace body at one；
Fig. 5 is the embodiment that multiple pyrolysis upgrading furnaces are used in series.
Reference numeral meaning is：1- coal dropping ports；2- upgrading furnace bodies；3- outlet gas lines；4- gas outlets；5- band teeth
Driving wheel；6- band tooth steel bands；7- feed openings；8- exhanst gas outlet pipelines；9- heat exchangers；10- smoke inlet pipelines；11- dedusters；
12- coolers；13- pressuring machines；14- hot-blast stoves；15- thermosistors；16- air-introduced machines；The cold burnt devices of 17-；18- valves.
Specific implementation mode
As shown in Figure 1, the present invention pyrolysis upgrading reacting furnace include coal dropping port 1, upgrading furnace body 2, outlet gas line 3,
Gas vent 4, band tooth driving wheel 5, band tooth driving wheel 6.The upper front end in upgrading furnace body 2, raw material fine coal warp is arranged in coal dropping port 1
It crosses coal dropping port 1 to enter inside upgrading furnace body 2, falls on band tooth steel band 6, carried under the driving with tooth driving wheel 5 with tooth steel band 6
Fine coal is advanced slowly；It is additionally provided with heat exchanger 9 inside upgrading furnace body 2, is arranged in the lower part with tooth steel band 6, centre position, is used for
It realizes to the heating with tooth steel band 6；The heat exchanger 9 includes smoke inlet pipeline 10 and exhanst gas outlet pipeline 8, comes from hot-blast stove
14 high-temperature flue gas enters heat exchanger 9 after thermosistor 15 is adjusted to temperature appropriate from smoke inlet pipeline 10, with band
Tooth steel band 6 completes heat exchange, will be heated to, suitable for completing the temperature of pyrolysis upgrading reaction, complete the cigarette of heat exchange with tooth steel band 6
Gas is transmitted using exhanst gas outlet pipeline 8 by air-introduced machine 16, and the second valve is directly vented or passed through by the first valve 18
19 be recycled to after thermosistor reheats be transported to again heat exchanger 9 complete recycle.By the powder for being pyrolyzed grading process processing
Coal falls on feed opening 7 under the end with tooth steel band, is discharged from upgrading furnace body 2 by feed opening 7, is realized through supercooling coke device 17 cold
But.Such setting makes fine coal in being pyrolyzed upgrading reaction process, not will produce especially more dust, and due to band tooth steel
Band 6 is in direct contact with fine coal, and heat exchange efficiency higher, pyrolysis upgrading reaction are more abundant.
As shown in Fig. 2, fine coal generates coal gas of high temperature from gas after realizing pyrolysis upgrading reaction in upgrading furnace body 2
Body outlet 4 is discharged by outlet gas line 3, passes through deduster 11, cooler 12, pressuring machine 13 successively, enters after pressurized
Heat source after hot-blast stove 14 as heat exchanger 9, which is recovered, to be recycled.Setting makes the high-temperature coal that upgrading furnace interior generates in this way
Heat source of the gas as heat exchanger 9, realizes the recycling of the energy, and the equipment for after-treatment and technique of coal gas of high temperature has not only been omitted, but also
The heat source cost of heat exchanger can be saved.
As shown in Figure 3-4,2 internal series-connection of upgrading furnace body is provided with multiple band tooth steel bands 6, and heat exchanger 9 is respectively set
In the corresponding lower part with tooth steel band 6, centre position, to realize to the heating with tooth steel band 6.The previous end with tooth steel band
Exist with the latter front end with tooth steel band and partly overlap, the previous position with the setting of tooth steel band is higher than the latter position with tooth steel band
It sets, this enables fine coal to be moved successively to the end of upgrading furnace body 2 with tooth steel band from first group, until by last group band
After tooth steel band, upgrading furnace body 2 is discharged by feed opening 7, then falls into cold burnt device 17 and completes cooling.So operation can make fine coal exist
Adequately pyrolysis upgrading reaction is realized in the inside of upgrading furnace body 2, and making to diffuse the heat loss that flue gas is taken away reduces 18%.It is arranged such
Pulverized coal pyrolysis upgrading reaction can be made to carry out more abundant, realize making full use of for raw material fine coal, improve pyrolysis upgrading efficiency.
As shown in figure 5, for the embodiment that is used in series of pyrolysis upgrading furnace of multiple present invention, under previous upgrading furnace body
Material mouth 7 corresponds to the coal dropping port 1 of latter upgrading furnace body, makes the quilt from previous upgrading furnace body treated that fine coal falls into latter upgrading
Furnace body continues to be pyrolyzed upgrading reaction, until after last group of upgrading furnace body, from the blanking of last group of upgrading furnace body
Mouth is expelled to cold burnt device 17 and completes cooling.The more abundant of pulverized coal pyrolysis upgrading reaction progress can be made by being arranged such, and be realized former
Feed powder coal makes full use of, and improves pyrolysis upgrading efficiency.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (12)
1. a kind of fine coal upgrading pyrolysis oven, including coal dropping port (1), upgrading furnace body (2), outlet gas line (3), gas vent
(4), which is characterized in that the upgrading furnace body (2) is internally provided with band tooth driving wheel (5), band tooth steel band (6), the band tooth steel
Band (6) is heat medium；
The fine coal is entered by coal dropping port (1) in the upgrading furnace body (2), is fallen on the hot band tooth steel band (6), and
As the movement of the band tooth steel band (6) is sent to the other end of the upgrading furnace body (2), realize that the upgrading pyrolysis of fine coal is anti-
It answers；
Setting heat exchanger (9) inside the upgrading furnace body (2), realizes the heating to the band tooth steel band (6), the heat exchanger
(9) it is arranged in the lower part of the band tooth steel band (6)；
The purified gas burning that the heat source of the heat exchanger (9) generates in grading process；Or, from the combustion heat individually established
Wind furnace；Or, the heat that burning other materials generate.
2. fine coal upgrading pyrolysis oven according to claim 1, which is characterized in that the heat exchanger (9) is provided with flue gas and enters
Mouth pipeline (10) and exhanst gas outlet pipeline (8).
3. fine coal upgrading pyrolysis oven according to claim 1, which is characterized in that the upgrading pyrolysis oven is set as multiple strings
Connection uses, and is discharged, enters latter from the feed opening (7) of the previous upgrading pyrolysis oven by the fine coal of previous upgrading pyrolysis oven
The coal dropping port of upgrading pyrolysis oven is fallen by the coal dropping port of the latter upgrading pyrolysis oven inside the latter upgrading pyrolysis oven
Pyrolytic process is completed on hot band tooth steel band, then is discharged from the coal dropping port of the latter upgrading pyrolysis oven, until the last one
Upgrading pyrolysis oven.
4. fine coal upgrading pyrolysis oven according to claim 1, which is characterized in that in the same upgrading furnace body (2)
Portion, the band tooth steel band (6), the heat exchanger (9) are set as multigroup series connection, and previous group band tooth steel band installation position is higher than latter
Group band tooth steel band, there are one section of overlapping regions with front end of the later group with tooth steel band for end of the previous group with tooth steel band so that preceding
One group is moved through the fine coal come with tooth steel band and can fall on down on next group of band tooth steel band, successively forward, until passing through the upgrading
The upgrading furnace body (2) is discharged in the feed opening of furnace body.
5. fine coal upgrading pyrolysis oven according to claim 1, which is characterized in that the band tooth steel band (6), it can be in difference
At a temperature of be engaged with tooth driving wheel (5).
6. fine coal upgrading pyrolysis oven according to claim 3, which is characterized in that the process being discharged from the feed opening (7)
The fine coal of pyrolysis falls into cold burnt device (17).
7. a kind of coal upgrading pyrolytic process carried out using claim 1-6 any one of them fine coal upgrading pyrolysis ovens, special
Sign is that raw material fine coal enters upgrading furnace body (2) inside by coal dropping port (1), falls on band tooth steel band (6), with hot
Movement with tooth steel band (6) is sent to the other end of the upgrading furnace body (2), realizes the upgrading pyrolytic reaction of fine coal.
8. coal upgrading pyrolytic process according to claim 7, which is characterized in that setting is changed inside the upgrading furnace body (2)
Hot device (9) realizes that the heating to the band tooth steel band (6), the heat exchanger (9) are arranged in the lower part of the band tooth steel band (6)；
The heat exchanger (9) is provided with smoke inlet pipeline (10) and exhanst gas outlet pipeline (8)；
The high-temperature flue gas from hot-blast stove (14) is after thermosistor (15) is adjusted to temperature appropriate from smoke inlet pipe
Line (10) enters heat exchanger (9), and heat exchange is completed with band tooth steel band (6), will be heated to tooth steel band (6) suitable for completing to be pyrolyzed
The temperature of upgrading reaction, completes the flue gas of heat exchange using exhanst gas outlet pipeline (8) by air-introduced machine (16) transmission, by the
One valve (18) directly emptying is recycled to after thermosistor (15) reheats by the second valve (19) and is transported to heat exchange again
Device (9) is completed to recycle；Fine coal by being pyrolyzed grading process processing falls on feed opening (7) under the end with tooth steel band,
It is discharged from upgrading furnace body (2) by feed opening (7), cooling is realized through the burnt device (17) of supercooling.
9. coal upgrading pyrolytic process according to claim 7, which is characterized in that fine coal passes through real in upgrading furnace body (2)
After having showed pyrolysis upgrading reaction, generates coal gas of high temperature and be discharged from gas vent (4) by outlet gas line (3), passed through successively
Deduster (11), cooler (12), pressuring machine (13) enter hot-blast stove (14), from cigarette after thermosistor (15) after being pressurized
Gas suction line (10) enters heat exchange heat exchanger (9), then is discharged from exhanst gas outlet pipeline (8), is delivered to via air-introduced machine (16)
First valve (18) is vented, or is recycled to the recycling that thermosistor (15) realizes heat source by the second valve (19).
10. coal upgrading pyrolytic process according to claim 9, which is characterized in that in the same upgrading furnace body (2)
Portion, the band tooth steel band (6), the heat exchanger (9) are set as multigroup series connection, and previous group band tooth steel band installation position is higher than latter
Group band tooth steel band, there are one section of overlapping regions with front end of the later group with tooth steel band for end of the previous group with tooth steel band so that preceding
One group is moved through the fine coal come with tooth steel band and can fall on down on next group of band tooth steel band, successively forward, until passing through the upgrading
The upgrading furnace body (2) is discharged in the feed opening of furnace body；
Each heat exchanger has independent smoke inlet pipeline and exhanst gas outlet pipeline, each smoke inlet pipeline connects
Thermosistor (15), each exhanst gas outlet pipeline is connected to the first valve (18) emptying, or is recycled by the second valve (19)
It is recycled to thermosistor (15) realization.
11. coal upgrading pyrolytic process according to claim 9, which is characterized in that in the same upgrading furnace body (2)
Portion, the band tooth steel band (6), the heat exchanger (9) are set as multigroup series connection, and previous group band tooth steel band installation position is higher than latter
Group band tooth steel band, there are one section of overlapping regions with front end of the later group with tooth steel band for end of the previous group with tooth steel band so that preceding
One group is moved through the fine coal come with tooth steel band and can fall on down on next group of band tooth steel band, successively forward, until passing through the upgrading
The upgrading furnace body (2) is discharged in the feed opening of furnace body；
Heat source gas is passed through the smoke inlet pipeline of First Heat Exchanger from thermosistor (15), then goes out from the flue gas of the First Heat Exchanger
Mouthful pipeline and then the smoke inlet pipeline for entering the second heat exchanger, make by this method a heat exchanger exhanst gas outlet pipeline and
The smoke inlet pipeline of next heat exchanger connects, and to the last the exhanst gas outlet pipeline of a heat exchanger is ultimately connected to the first valve
Door (18) emptying, or thermosistor (15) realization is recycled to by the second valve (19) and is recycled.
12. coal upgrading pyrolytic process according to claim 9, which is characterized in that the upgrading pyrolysis oven is set as multiple
It is used in series, is discharged from the feed opening (7) of the previous upgrading pyrolysis oven by the fine coal of previous upgrading pyrolysis oven, after entering
The coal dropping port of one upgrading pyrolysis oven is fallen by the coal dropping port of the latter upgrading pyrolysis oven inside the latter upgrading pyrolysis oven
Hot band tooth steel band on complete pyrolytic process, then be discharged from the coal dropping port of the latter upgrading pyrolysis oven, until last
A upgrading pyrolysis oven；
The heat source gas come out from thermosistor (15) provides heat by way of in parallel for the heat exchanger of each upgrading pyrolysis oven
It measures, or the heat exchanger by concatenated mode for each upgrading pyrolysis oven provides heat；
From the gas collection that the exhanst gas outlet pipeline of the heat exchanger of each upgrading pyrolysis oven is discharged to passing through air-introduced machine together
(16) pass through the first valve (18) to be vented, or thermosistor (15) realization is recycled to by the second valve (19) and is recycled.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510459750.XA CN105062523B (en) | 2015-07-30 | 2015-07-30 | A kind of fine coal upgrading pyrolysis installation and upgrading pyrolytic process |
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| CN201510459750.XA CN105062523B (en) | 2015-07-30 | 2015-07-30 | A kind of fine coal upgrading pyrolysis installation and upgrading pyrolytic process |
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| CN105062523A CN105062523A (en) | 2015-11-18 |
| CN105062523B true CN105062523B (en) | 2018-07-13 |
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| CN203715567U (en) * | 2014-01-16 | 2014-07-16 | 华北电力大学 | Rolling type biomass pyrolysis poly-generation device |
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