CN207313529U - A kind of complex function low temperature upgrading furnace - Google Patents
A kind of complex function low temperature upgrading furnace Download PDFInfo
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- CN207313529U CN207313529U CN201721333693.1U CN201721333693U CN207313529U CN 207313529 U CN207313529 U CN 207313529U CN 201721333693 U CN201721333693 U CN 201721333693U CN 207313529 U CN207313529 U CN 207313529U
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Abstract
A kind of complex function low temperature upgrading furnace, including the distributing trough above furnace body is arranged on, distributing trough is connected with furnace interior, and the top of furnace body is equipped with dedusting drainage system, and dedusting drainage system can discharge the gas produced in stove；Multiple disturbance devices for loose whereabouts coal body are equipped with the inner cavity of furnace body, the lower section of disturbance device is equipped with hydrogenation plant and thermal decomposer successively, the solid product that thermal decomposer produces, which through the first cooling device is delivered to row and is fixedly mounted with, to be put, and is exported after the cooling of the second cooling device.First cloth cloth thermal uses hollow column structure, and the end face of column structure offers air inlet, and the face of face dedusting drainage system whereabouts coal body is the first cloth surface, and face on the other side is the hot face of the first cloth.The fragment that the utility model pyrolysis of coal produces can obtain hydrogen source stabilization in time and be decomposed, and improve tar yield and the quality of solid product.
Description
Technical field
It the utility model is related to coal sub-prime and utilize field, and in particular to a kind of complex function low temperature upgrading furnace.
Background technology
The pyrolysis of coal refers to coal under conditions of isolation air or inert atmosphere, when continuous heating to higher temperature,
The a series of physical change occurred and the complex process of chemical reaction.Pyrolysis of coal is coal process change, such as burning, gasification, liquid
Particularly important pilot process in the techniques such as change.Coal gas, tar and semicoke can be made in pyrolysis of coal.With gasification or liquefaction process mistake
Journey is compared, and the technique of pyrolysis of coal is simple, and processing conditions is gentle, small investment, and production cost is low.
According to pyrolytical condition and mode, pyrolysis of coal can classify as follows：
1st, it is divided into low temperature pyrogenation (450~650 DEG C) by pyrolysis final temperature, for the purpose of producing tar；Middle low temperature pyrogenation
(600~900 DEG C), to produce based on coal gas；Medium temperature is pyrolyzed (700~900 DEG C)；High temperature pyrolysis (900~1200 DEG C)；Superhigh temperature
Pyrolysis (>1200℃).
2nd, it is divided into common pyrolysis (inert atmosphere) or conventional pyrolytic, hydropyrolysis and catalytic hydropyrolysis by atmosphere.
3rd, it is divided into moving bed, fluid bed and air flow bed (entrainment by solid particle and relative motion state of the gas in bed
Bed).
4th, it is divided into internal heat type pyrolysis, external-heat pyrolysis and inside and outside heat by mode of heating and is pyrolyzed with formula.
5th, it is divided into solid heat carrier pyrolysis, gas heat carrier pyrolysis and gas-solid heat carrier pyrolysis by heat carrier mode.
The current existing upright upgrading furnace of low temperature is mainly internal combustion and outer so interior hot stove type, and wherein internal-combustion and-heating type gas retort obtains
The calorific value of gas arrived is not high, while can only be adapted to small beans and lump coal, and tar yield only has 6%, and tar yield is relatively low.In external combustion
Heating type retort furnace calorific value of gas is high, and solid product quality is preferable, but tar yield, also 6% or so, tar yield is not also high.
Such as patent CN202730059U records, combustion chambers burn of the fuel gas in upright furnace is mainly obtained into hot carrier gas and enters charcoal
Change room and upgrading is heated to coal, but this upgrading presence, if during smaller coal grain, carbonization chamber drapery panel does not work, because coal seam
Thicker, gas permeability is poor, and heating is uneven to cause half-cooked situation to occur, while hydrocarbon mixture product yield is relatively low, therefore this is carried
Matter stove is only suitable for lump coal heating upgrading.In view of internal-combustion and-heating type and outer so internal heat type upgrading furnace pyrolytic tar yield are relatively low at present,
In addition tar dust-laden is more especially during pulverized coal pyrolysis, has seriously affected tar quality.Internal combustion is combined design with external combustion at present
Large-scale internal thermal upright stove combination hydropyrolysis technology do not apply also, the serious upgrading utilization rate for restricting coal, have impact on coal
Utility value.
Utility model content
The purpose of this utility model is that it is directed to above-mentioned the problems of the prior art, there is provided a kind of complex function low temperature upgrading
Stove, enables the fragment that pyrolysis of coal produces to obtain hydrogen source stabilization in time and is decomposed, improve the product of tar yield and solid product
Matter.
To achieve these goals, the technical solution adopted in the utility model is：
Including the distributing trough being arranged on above furnace body, the distributing trough is connected with furnace interior, and the top of furnace body is equipped with
Dedusting drainage system, dedusting drainage system can discharge the gas produced in stove；Multiple be used for is equipped with the inner cavity of the furnace body
The disturbance device of loose whereabouts coal body, the lower section of disturbance device are equipped with hydrogenation plant and thermal decomposer, thermal decomposer successively
The solid product of generation, which by the first cooling device is delivered to row and is fixedly mounted with, to be put, and is exported after the cooling of the second cooling device.
The distributing trough includes infundibulate head and is connected to the communicating pipe of infundibulate lower head, the funnel
Formed among forming head portion by being inverted triangular structure and being intervally arranged in gradient in the skew wall for being inverted triangular structure both sides
Conduit, skew wall is parallel with the side of triangular structure.
Dedusting drainage system includes cylindric drainage tube, and drainage tube passes through drainage tube by dust cleaning case connection air slot
The gas cleaning device gas produced in stove being expelled to outside furnace body.
The air slot is horn-like structure, and the wall of horn-like structure is plane or cambered surface；The top surface of dust cleaning case
For cambered surface.
The thermal decomposer includes the first cloth cloth thermal being disposed over by coal body falling direction and sets
Put the second cloth cloth thermal in lower section.
First cloth cloth thermal uses hollow column structure, and more column structure lateral separations are fixed, adjacent layer it
Between column structure interlaced arrangement；The end face of column structure offers air inlet, and face dedusting drainage system whereabouts coal body
Face is the first cloth surface, and face on the other side is the hot face of the first cloth；First cloth surface is the sealing surface of divergent type structure,
The hot face of first cloth for gradual shrinkage structure and be spaced apart be equipped with several the first cloth hot holes.
The head of second cloth cloth thermal is the second cloth surface, and the second cloth surface is supported by sub-material wall, on sub-material wall
Open up the second cloth hot hole；Second cloth surface is the sealing surface of divergent type structure.
The solid product that thermal decomposer produces is discharged into the first cooling device through discharge channel, is installed on the first cooling device
Helical teeth cooler, helical teeth cooler have cooling medium main line and are distributed in the helical teeth pipe of cooling medium main line both sides
Road.
Second cooling device is arranged at row and is fixedly mounted with the lower section put, and the second cooling device is by loopy moving conveyer belt and spray
Head composition, the nozzle are multiple along the central axes setting of circulation moving conveyor belt.
Compared with prior art, the utility model has following beneficial effect：Distributing trough can avoid the coal of upright furnace
In top panel, segregation phenomena occurs for mixed coal, and the filtrate of dedusting drainage system is arranged to coal upgrading solid product or other suctions
Dirt material, disturbance device are conducive to make coal grain loose, increase gas permeability, set hydrogenation plant to be conducive to improve tar receipts
Rate, the tar yield of existing upright furnace is 6.0% or so, is proved by testing, can receive tar using after the utility model
Rate improves 2% on the basis of existing yield.The utility model uses two parts cooling device, and the cooling-down effect of solid product is more
It is good.The fragment that the utility model pyrolysis of coal produces can obtain hydrogen source stabilization in time and be decomposed, and improve tar yield and solid
The quality of product.
Further, the utility model thermal decomposer includes the first cloth cloth being disposed over by coal body falling direction
Thermal and the second cloth cloth thermal being arranged below, the first cloth cloth thermal produce after can realizing outer coal gas
Heat source gas enters in stove, coal is thermally decomposed in advance, the first cloth cloth thermal uses hollow column structure, the first cloth surface
For the sealing surface of divergent type structure, gradual shrinkage structure is in the hot face of the first cloth and is spaced apart and is equipped with several the first cloth hot holes, and first
Cloth hot hole opens up obliquely, can prevent coal grain from entering the inside of column structure, can not only realize to mixed coal uniform distribution, moreover it is possible to
Uniform cloth heat.
Further, helical teeth cooler is installed, there is helical teeth cooler cooling to be situated between on the first cooling device of the utility model
Matter main line and the helical teeth pipeline for being distributed in cooling medium main line both sides, add cooling surface, make solid product cooling effect
Fruit is more preferable.Second cooling device is passed by the preferable loopy moving conveyer belt of heat-conducting effect and sprinkler composition, nozzle along loopy moving
Send the central axes setting of band multiple, Jiao etc. is dragged in the side such as economy, environmental protection using the more existing water mist quenching of the second cooling device, water
Face is with the obvious advantage.
Brief description of the drawings
The overall structure diagram of Fig. 1 the utility model；
The structure diagram of Fig. 2 the utility model distributing troughs；
The structure diagram of Fig. 3 the first cloth cloth thermals；
The front view of Fig. 4 dedusting drainage systems；
The side view of Fig. 5 dedusting drainage systems；
The structure diagram of Fig. 6 thermal decomposers；
Fig. 7 the first cooling device structure diagrams；
In attached drawing：1- distributing troughs；2- dedusting drainage systems；3- disturbance devices；4- hydrogenation plants；5- the first cloth cloth hot chargings
Put；6- the second cloth cloth thermals；7- discharge channels；The first cooling devices of 8-；9- rows, which are fixedly mounted with, to put；The second cooling devices of 10-；
101- triangular structures；102- skew walls；103- communicating pipes；201- air slots；202- dust cleaning cases；203- drainage tubes；204- gussets；
401- is hydrogenated with hole；The first cloth surfaces of 501-；The hot face of the first cloth of 502-；503- the first cloth hot holes；504- air inlets；The second cloth of 601-
Charge level；602- the second cloth hot holes；603- sub-material walls；801- helical teeth coolers；802- cools down medium inlet end；803- cools down medium
The port of export；1001- nozzles；1002- loopy moving conveyer belts.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
Embodiment 1
Referring to Fig. 1, for particle diameter in below 30mm mixed coals, the utility model complex function low temperature upgrading furnace structure such as Fig. 1
It is shown, including distributing trough 1, dedusting drainage system 2, disturbance device 3, hydrogenation plant 4, the first cloth cloth thermal 5, the second cloth
Cloth thermal 6, discharge channel 7, the first cooling device 8, row, which are fixedly mounted with, puts 9 and second cooling device 10.
Referring to Fig. 2, distributing trough 1 sets two in present case, and coal is uniformly arranged in distributing trough 1, enters connection
In pipe 103；Distributing trough 1 is used for carrying out cloth to conveying the raw coal come by power-equipment, is unlikely to make raw coal generation segregation phenomena,
The rectangular cross-section of distributing trough 1, distributing trough 1 by one back-off closing triangular structure 101 and several skew walls 102 weld and
Into closing triangular structure 101 is arranged on topmost, and certain gradient and distance are set between oblique side wall 102 is adjacent；
Referring to Fig. 3-7, dedusting drainage system 2 is arranged at below feed pipe in present case, is provided with dedusting drainage system 2
Dust removal and filtration material, dust removal and filtration material are coal upgrading solid product small particle；Dedusting drainage system 2 is arranged in pyrolysis chamber
Portion, dedusting drainage system 2 include two air slots 201, dust cleaning case 202 and drainage tube 203,201 rectangular cross-section of air slot,
Drainage tube 203 is cylindrical shape；Dedusting drainage system 2 sets three in present case；Disturbance device 3 is arranged at dedusting and draws in present case
The lower section of device 2 is flowed, sets several layers, every layer sets several disturbance devices 3；
Present case function of tonic chord room is made of hydrogenation plant 4, the first cloth cloth thermal 5 and the second cloth cloth thermal 6, coal
Heat source gas with coming in the first cloth hot hole 503 of the first cloth cloth thermal 5 carries out contact heating, coal temperature is reached 550
DEG C -600 DEG C, coal is come in flammable at the second cloth cloth thermal 6 with the second cloth hot hole 602 in the second cloth cloth thermal 6
Internal combustion occurs for gas and air, produces 650 DEG C -700 DEG C of hot environment and thermally decomposes；
First cloth cloth thermal 5 and 4 structure of hydrogenation plant are open diamonds column, including the first cloth surface 501, first
The hot face 502 of cloth, the first cloth hot hole 503；First cloth surface 501 is arranged to 2, and cloth surface is with removing in open diamonds column structure
Two adjacent surfaces of 2 face of dirt drainage system；The hot face 502 of first cloth is two other adjacent surface on the other side；First cloth heat
Hole 503 is arranged on the hot face 502 of cloth；First cloth hot hole 503 sets several；The center line of first cloth hot hole 503 and the hot face 502 of cloth
Vertically；The end face of column structure offers air inlet 504.The side of first cloth cloth thermal 5 can also be arc-shaped.
First cooling device 8 is arranged at the lower section of discharge channel 7, and the first cooling device 8 is provided with helical teeth cooler 801 and straight
The indirect cooling system that Upright Diamond shape communicates；One layer of hydrogenation plant 4, one layer of first cloth cloth thermal 5 are set in present case；Row
It is fixedly mounted with and puts 9 to move back and forth equipment；Second cooling device, 10 row of being arranged at, which is fixedly mounted with, puts 9 lower sections, and the second cooling device 10 is by heat conduction
The preferable loopy moving conveyer belt 1002 of effect and nozzle 1001 form, axis of the nozzle 1001 along circulation moving conveyor belt 1002
Line sets multiple.
The process that low temperature upgrading is carried out using the utility model complex function low temperature upgrading furnace is as follows：
1st, coal is transported to distributing trough 1 by conveying equipment, then enters through communicating pipe 103 in upgrading furnace, progressively moves down；
2nd, coal reaches disturbance device 3, continues to move down through disturbance device 3 is loose after dedusting drainage system 2；
3rd, coal is at hydrogenation plant 4, with the second cloth cloth thermal 6 and the hydrocarbon mixture of the first cloth cloth thermal 5 generation
Hydrogenation occurs for class gas, part hydrocarbon mixture material is changed into stable material and rises at dedusting drainage system 2, draws through dedusting
Flow device 2 and discharge upgrading furnace；
4th, coal is in the heated pre- thermal decomposition of the first cloth cloth thermal 5, the generation less hydrocarbon mixture material of moieties amount；
Internal combustion production occurs for the combustible gas and air that the 5, coal is come in the second cloth cloth thermal 6 and the second cloth hot hole 602
Raw high temperature thermally decomposes coal, forms hydrocarbon mixture gas and moves up, and produces solid product and moves downward through discharge channel
7；
6th, solid product enters the first cooling device 8, and solid product is cold with carrying out indirect heat exchange with helical teeth cooler 801
But, solid product is made to be cooled；
7th, solid cooling product continues the row of moving downward through and is fixedly mounted with to put 9, and row, which is fixedly mounted with, to put 9 and be reciprocally moveable；
8th, solid product enters the second cooling device 1 after row is fixedly mounted with and puts 9, and solid product is displaced downwardly to loopy moving steel band
On 1002, cooled down through nozzle 1001 in 1002 bottom spray cooling of loopy moving steel band, obtain low-temperature solid product and be delivered to production
Product storehouse.
Embodiment 2
Referring to Fig. 1, for particle diameter in below 30mm mixed coals, the utility model complex function low temperature upgrading furnace structure such as Fig. 1
It is shown, including distributing trough 1, dedusting drainage system 2, hydrogenation plant 4, the first cloth cloth thermal 5, the second cloth cloth thermal 6,
The cooling of discharge channel 7, first fills 8, row and is fixedly mounted with and puts the 9, second cooling device 10；
It is two that distributing trough 1 is set in present case, and coal is uniformly arranged in distributing trough 1, enters communicating pipe 103
In；
Referring to Fig. 2, distributing trough 1 be used for by power-equipment convey come raw coal progress cloth, be unlikely to make raw coal
Segregation phenomena, 1 rectangular cross-section of distributing trough, distributing trough 1 are welded by a closing three-legged structure 101 and several skew walls 102,
Closing triangle 101 is arranged on topmost, and certain gradient and distance are set between skew wall 102 is adjacent；
Referring to Fig. 3-7, dedusting drainage system 2 is arranged at below feed pipe in present case, sets 2 to have in dedusting drainage system
Dust removal and filtration material, dust removal and filtration material are coal upgrading solid product small particle；Dedusting drainage system 2 is arranged in pyrolysis chamber
Portion, dedusting drainage system 2 includes two air slots, 201, two dust cleaning cases 202 and drainage tube 203,201 section of air slot are
Rectangle, drainage tube 203 are cylindrical shape；Dedusting drainage system described in present case 2 sets three；
Function of tonic chord room described in present case is by the hydrogenation plant 4, the first cloth cloth thermal 5 and the second cloth cloth thermal
6 compositions, heat source gas of the coal at the first cloth cloth thermal 5 with being come in the first cloth cloth thermal 5 by the first cloth hot hole 503
Contact heating is carried out, coal temperature is reached 550-600 DEG C, coal is in the second cloth cloth thermal 6 and the second cloth cloth thermal 6
The fuel gas and air come in by the second cloth hot hole 602 occur 650 DEG C -700 DEG C of internal combustion generation and thermally decompose；
First cloth cloth thermal 5 and 4 structure of hydrogenation plant are diamond shape column, and acute angle both sides are provided with diamond shape column
Hole；
One layer of hydrogenation plant 4 is set in present case, and the first cloth cloth thermal 5 is set two layers, and adjacent layer is arranged to misplace；
Hydrogenation plant 4 may be configured as two layers, and adjacent layer is arranged to misplace；Hole is by the first cloth cloth thermal 5 and 4 both ends of hydrogenation plant
Become larger to center, centerline hole is vertical with sharp edge, and the first cooling device 8 is arranged at the lower section of discharge channel 7, and first is cold
But device 8 is provided with the indirect-heat-exchange cooling system that helical teeth cooler 801 and upright diamond shape communicate；Row, which is fixedly mounted with, to put 9 and is arranged to
Move back and forth equipment；Second cooling device, 10 row of being arranged at, which is fixedly mounted with, puts 9 lower sections, and the second cooling device 10 is by loopy moving steel band
1002 and nozzle 1001 form, nozzle 1001 along circulation moving conveyor belt 1002 central axes set it is multiple.
It is as follows that low temperature process for upgrading method is carried out using the utility model complex function low temperature upgrading furnace：
1st, coal is transported to distributing trough 1 by conveying equipment, then enters through communicating pipe 103 in upgrading furnace, progressively moves down；
2nd, coal is reached at hydrogenation plant 4, with the second cloth cloth thermal 6 and the first cloth after dedusting drainage system 2
Hydrogenation occurs for the hydrocarbon mixture gas that cloth thermal 5 produces, and makes part hydrocarbon mixture material be changed into stable material and rise to remove
At dirt drainage system 2, discharged through dedusting drainage system 2 in the upgrading furnace；
3rd, coal is in the heated pre- thermal decomposition of the first cloth cloth thermal 5, the generation less hydrocarbon mixture material of moieties amount；
Internal combustion production occurs for the combustible gas and air that the 4, coal is come in the second cloth cloth thermal 6 and the second cloth hot hole 602
Raw 650 DEG C -700 DEG C thermally decompose coal, form hydrocarbon mixture gas and move up, and generation solid product, which is moved downwardly into, to be unloaded
Expect passage 7；
5th, solid product enters the first cooling device 8, and solid product and the progress indirect heat exchange of helical teeth shape cooler 801 are cold
But, solid product is made to be cooled；
6th, solid cooling product continues the row of moving downward through and is fixedly mounted with to put 9, and row, which is fixedly mounted with, to put 9 and be reciprocally moveable；
7th, solid product enters the second cooling device 10 after the row is fixedly mounted with and puts 9, and solid product is displaced downwardly to circulation and moves
On dynamic conveyer belt 1002, cooling down is carried out in the bottom of loopy moving conveyer belt 1002 water spray through nozzle 1001, is finally obtained
Low-temperature solid product, is delivered to product storehouse.
Obvious above-mentioned case is only to be made case by clearly explanation, and not embodiment is limited, for institute
State for the those of ordinary skill of field, other various forms of changes or change can also be made on the basis of the above description
It is dynamic, all embodiments can not be enumerated here.And the change or variation thus extended are still in the utility model
Protection domain in.
Claims (9)
- A kind of 1. complex function low temperature upgrading furnace, it is characterised in that：It is described including the distributing trough (1) being arranged on above furnace body Distributing trough (1) is connected with furnace interior, and the top of furnace body is equipped with dedusting drainage system (2), and dedusting drainage system (2) can discharge The gas produced in stove；Multiple disturbance devices (3) for loose whereabouts coal body, disturbance device are equipped with the inner cavity of the furnace body (3) lower section is equipped with hydrogenation plant (4) and thermal decomposer successively, and the solid product that thermal decomposer produces is by the first cooling Device (8) row of being delivered to, which is fixedly mounted with, puts (9), and is exported after the second cooling device (10) cooling.
- 2. complex function low temperature upgrading furnace according to claim 1, it is characterised in that：The distributing trough (1) includes leakage Bucket shape head and the communicating pipe (103) for being connected to infundibulate lower head, the infundibulate head passes through in the middle is inverted three Angular structure (101) and the groove formed in the skew wall (102) for being inverted triangular structure (101) both sides that is intervally arranged in gradient Road, skew wall (102) are parallel with the side of triangular structure (101).
- 3. complex function low temperature upgrading furnace according to claim 2, it is characterised in that：Dedusting drainage system (2) includes circle The drainage tube (203) of tubular, drainage tube (203), will by drainage tube (203) by dust cleaning case (202) connection air slot (201) The gas produced in stove is expelled to the gas cleaning device outside furnace body.
- 4. complex function low temperature upgrading furnace according to claim 3, it is characterised in that：The air slot (201) is loudspeaker Shape structure, the wall of horn-like structure is plane or cambered surface；The top surface of dust cleaning case (202) is cambered surface.
- 5. complex function low temperature upgrading furnace according to claim 1, it is characterised in that：The thermal decomposer includes pressing Coal body falling direction the first cloth cloth thermal (5) being disposed over and the second cloth cloth thermal being arranged below (6)。
- 6. complex function low temperature upgrading furnace according to claim 5, it is characterised in that：First cloth cloth thermal (5) is adopted With hollow column structure, more column structure lateral separations are fixed, the column structure interlaced arrangement between adjacent layer；Column knot The end face of structure offers air inlet (504), and the face of face dedusting drainage system (2) whereabouts coal body is the first cloth surface (501), Face on the other side is the hot face of the first cloth (502)；First cloth surface (501) is the sealing surface of divergent type structure, described The hot face of the first cloth (502) for gradual shrinkage structure and be spaced apart be equipped with several the first cloth hot holes (503).
- 7. complex function low temperature upgrading furnace according to claim 5, it is characterised in that：Second cloth cloth thermal (6) Head is the second cloth surface (601), and the second cloth surface (601) is supported by sub-material wall (603), and the is opened up on sub-material wall (603) Two cloth hot holes (602)；Second cloth surface (601) is the sealing surface of divergent type structure.
- 8. complex function low temperature upgrading furnace according to claim 1, it is characterised in that：The solid production that thermal decomposer produces Product are discharged into the first cooling device (8) through discharge channel (7), and helical teeth cooler (801), helical teeth are installed on the first cooling device (8) Cooler (801) has cooling medium main line and is distributed in the helical teeth pipeline of cooling medium main line both sides.
- 9. complex function low temperature upgrading furnace according to claim 1, it is characterised in that：Second cooling device (10) is arranged at Row is fixedly mounted with the lower section for putting (9), and the second cooling device (10) is made of loopy moving conveyer belt (1002) and nozzle (1001), described Nozzle (1001) sets multiple along the central axes of circulation moving conveyor belt (1002).
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| CN201721333693.1U CN207313529U (en) | 2017-10-17 | 2017-10-17 | A kind of complex function low temperature upgrading furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107523316A (en) * | 2017-10-17 | 2017-12-29 | 榆林煤化工产业促进中心 | A kind of hydrogen source stably decomposes complex function low temperature upgrading furnace |
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2017
- 2017-10-17 CN CN201721333693.1U patent/CN207313529U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107523316A (en) * | 2017-10-17 | 2017-12-29 | 榆林煤化工产业促进中心 | A kind of hydrogen source stably decomposes complex function low temperature upgrading furnace |
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