CN206053930U - For the linear gasification furnace of coal underground gasifying technology - Google Patents
For the linear gasification furnace of coal underground gasifying technology Download PDFInfo
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- CN206053930U CN206053930U CN201620963468.5U CN201620963468U CN206053930U CN 206053930 U CN206053930 U CN 206053930U CN 201620963468 U CN201620963468 U CN 201620963468U CN 206053930 U CN206053930 U CN 206053930U
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Abstract
This practicality discloses a kind of linear underground gasification furnace for coal underground gasifying technology, including at least one linear gasification furnace monomer, and linear gasification furnace monomer includes following component：Two orientation injection wells, each orientation injection well include that injection casing, concentric setting inject into well bushing pipe and Uuderground Supervision System；Coiled tubing, the oxidant injection device that can be pulled back and underground ignition installation are mounted in the internal lining pipe of orientation injection well；One vertical product well, including vertical product casing, the product pipe of concentric setting, Uuderground Supervision System, product Gutron cross well mouth hanger free suspension；Vertical product well and orientation injection well tail end insertion, the angle between two orientation injection wells is 60 180 °, and vertical product well well head is provided with synthesis gas on-line period analysis system and control system.This utility structure is simple, and new linear gasification furnace orientation injection well can reuse the vertical segment structure that the discarded linear gasification furnace monomer of shut-in well orients injection well, reduce drilling cost.
Description
Technical field
The utility model discloses a kind of linear underground gasification furnace for coal underground gasifying technology.
Background technology
Underground coal gasification(UCG) (ISC) is a kind of controlled burning (imperfect combustion) by subterranean coal and gasified reverse
Should, coal is converted into the technical process of gas products.Product gas are commonly known as synthesis gas, can as fuel production,
The raw material of the downstream processes such as Chemical Manufacture, generating.The technical process set shaft building completion, underground coal mining and coal gasifying process skill
Art, has the advantages that safety is good, invests little, high efficiency, pollutes few.
By the straight-through coal seam of ground drilling, the injection of oxygen supply agent and product gas output are there is provided effective passage.One is used for
The drilling well of oxidant injection is referred to as " injection well ", and another drilling well for being used to produce product gas is referred to as " product well ".Orientation water
Flat drill well and vertical drilling all can be used as injection well or product wells.
When having injection well, product well and horizontal channel to couple together the two in coal seam, this construction is referred to as a coal
Charcoal underground gasification (ISC) unit or well pair.ISC units include combustion zone, gasification zone and pyrolysis zone.Given birth to by underground coal gasification(UCG)
Into product gas (crude synthesis gas) usually contain synthesis gas (CO, CO2,H2,CH4Deng) and other impurities composition (solid particle,
Water, coal tar, H2S,NH4, COS etc.).Crude synthesis gas are delivered to ground by Jing product wells, then are transported to downstream by surface line
Device is processed and is applied.
The type selecting of underground gasification furnace needs the geology for considering coal seam and hydrogeologic condition and downstream process pairing
Requirement into makings amount etc..The drilling technology that type of furnace design is adopted in including building process, the position of well pair and purposes etc..It is existing
The various gasification type of furnaces generally only account for ideally large-area " lamellar/bulk " exploitation, and have ignored practical operation
During the synthesis gas stability that caused due to complex geological condition and gasification, technology controlling and process, ground or subsurface formations it is heavy
The problems such as drop.For example, the Chinese utility model patent application of Publication No. CN103437748A discloses a kind of coal underground
Gasification furnace and coal underground gasification method.The gasification furnace includes, the network structure of multiple directed drillings and vertical well construction.
Lighted a fire using peupendicular hole, led to using unique outlet of the first directional well (product well) as multiple second directional wells (injection well)
Road.Its major technique builds that difficulty is big and structural instability the disadvantage is that, drilling complexity number is various.Peupendicular hole is through high temperature
Light a fire and through rear fragile, cause subsoil water seepage and synthesis gas diffusion etc..The China of publication number CN104563991A is practical
New patent application discloses a kind of coal underground gasifying furnace and its gasification process.The gasification furnace includes a peupendicular hole (point
Gas well) and it is multiple be interconnected directed drilling composition network structure.Plurality of first directional well as injection well, uniquely
The outlet passageway of one the second intercommunication by directional drilling peupendicular hole (ignition well) and other first directional wells as whole system.Its master
Technical disadvantages are wanted to be that drilling well structure difficulty is larger, structural instability.Whole system complex operation, once underground gasification furnace occurs
Emergency case cannot find in time and process.In sum, existing underground gasification furnace technology and gasification process become impact
One of bottleneck of underground coal gasification(UCG) efficiency and stability.The subject matter for facing at present includes:
A) existing drilling technology cannot meet the complicated network structure of underground gasification furnace, and largely improve drilling well into
This, affects heavy industrialization project implementation.
B) exploitation of large area lamellar/bulk it is larger to gasification furnace length limitation (<200 meters), that is, the furnace li` that gasifies is shorter, shadow
The economic benefit of the project of sound.And large area lamellar/bulk exploitation extremely easily causes roof inbreak, serious conditions can cause ground
Face such as subsides at the geological disaster.
C) whole gasified boiler system complex operation, starts to light a fire normal operation (using company of flashing back in confined goods well
Logical multiple orientation injection wells or using firepower after peupendicular hole igniting through connection confined goods well) operating difficultiess, take it is longer, no
The long-term excess emitters of qualified tail gas, have greater environmental impacts.
D) whole gasified boiler system relies on the igniting of only one peupendicular hole, or using firepower through connection.Igniting is completed into
The normal course of operation of each injection well cannot be monitored afterwards.Once run into down-hole emergency case, it is impossible to find in time and appropriate place
Reason, it is larger to coal resources waste.
E) whole gasified boiler system is exported without alternate products gas.Prop up inside actual destroyed confined goods well in ignition process
Protection structure (internal lining pipe), only remains the empty passage of insecure combustion as unique mixing and the outlet of multiple orientations injection well (work surface)
, easily there is blocking, current limliting problem in passage.Once going wrong, whole netted gasified boiler system will be unable to continue normal operating.
F) the necessary coordinated signals of multiple orientation injection wells, it is impossible to be independently controlled and operate.Between injection well due to compared with
High operating pressure easily forms insertion, and cannot be monitored and be processed by mixed product gas quality.Once there is insertion, it is whole
Individual process for underground gasification process is uncontrollable, and synthesis gas yield and quality fluctuation are larger, inject into well subsurface equipment and easily damage.
Or once oxygen leakage is to product well, it is impossible to find in time and individual processing, can only total system stop, exist higher complete hidden
Suffer from.
G) after gasification terminates, whole work surface burned out area complex structure, in burned out area, residual coal seam easily causes dead angle, after giving
The parking of continuous gasification furnace, flame-out, cleaning and recovery operation bring larger difficulty, there is certain environmentally friendly hidden danger.
Utility model content
One of the purpose of this utility model is to solve the deficiencies in the prior art, there is provided a kind of to be used for underground coal gasification(UCG) work
The linear underground gasification furnace of skill.
This utility model solves the technical scheme adopted by its technical problem：
This utility model provides a kind of linear underground gasification furnace, including at least one linear gasification furnace monomer, the line
Property gasification furnace monomer includes following component：
Two orientation injection wells, each orientation injection well include injection casing, the injection well liner of concentric setting
Pipe and Uuderground Supervision System；
Coiled tubing, the oxidant injection device that can be pulled back and ground down-firing are mounted in the internal lining pipe of orientation injection well
Equipment；
One vertical product well, including vertical product casing, the product pipe of concentric setting, Uuderground Supervision System, produce
QC with the distance of confined goods bottom is more than zero after maximum heat prolonged expansion by well mouth hanger free suspension；
Vertical product well location is located at vertical product well both sides, vertical product well and orientation respectively in centre, orientation injection well
Injection well tail end insertion, the angle between two orientation injection wells is 60-180 °；
Vertical product well well head is provided with synthesis gas on-line period analysis system and control system.
The coal column of certain size is reserved between each linear gasification furnace monomer, it is ensured that each gasification furnace is closed independence
Operating unit.
Synthesis gas on-line period analysis system and control system independent operation of each linear gasification furnace monomer according to itself
Guarantee the synthesis gas production of continuous-stable.
When the emergency cases such as blocking, flame-out, oxygen leakage occurs in some linear gasification furnace monomer, positioned at the linear gasification
The Uuderground Supervision System and well head synthesis gas on-line period analysis system of stove monomer can find in time and feed back, be conducive in time solely
On the spot reply processes the gasification furnace, minimizes various potential safety hazards, it is ensured that underground gasification stability and reliability.Standby process side
Case is that one side positioning injection well of Temporarily Closed judges emergency location according to the unilateral condition of production and processes.
After gasification terminates, the orientation injection well of new gasification furnace can utilize the orientation injection well that shut-in well discards linear gasification furnace to hang down
Straight section structure, reduces drilling cost.
This utility model carries out the layout and underground gasification method of large-scale industrial production according to above-mentioned linear gasification furnace,
Including：
A) according to project construction scale, determine the linear gasification furnace number n of A phase projects, the An that is followed successively by A1, A2 ... ... is pressed
According to the distance between the parallelism structural layout of linear gasification furnace monomer, same side positioning injection well of adjacent linear gasification furnace monomer it is
20-80 rice；
B) in A1 gasification furnaces, apart from two orientation notes of vertical product well two ends 10-100 rice (preferred 30-60 rice)
Enter in well horizontal channel while implementing igniting, unqualified tail gas is incorporated to ground exhaust pipe, is transported to flare discharge；
C) light a fire after success, air, oxygen-enriched or pure oxygen gasification process are switched to according to technological requirement, synthesis gas quality meets
After design standard, ground synthesis gas pipeline is incorporated to, is transported to purified synthesis gas and processes and downstream syngas comprehensive utilization process.
D) successively to A2, A3 ... ... An are lighted a fire and technique switches to normal production, and unqualified tail gas is incorporated to ground tail
Feed channel, is transported to flare discharge.Qualified synthesis gas product is incorporated to ground synthesis gas pipeline, be transported to purified synthesis gas process and
Downstream syngas comprehensive utilization process；
E) when A term areas coal seam consumes close finishing, C phase drilling wells, igniting, gasification are started in new work surface,
Repeat step a-d, it is ensured that the continuous and steady operation of downstream process；
F) normal production is reached when the C phases, at the end of the A phases gasify, successively to A1, A2 ... ... An carry out stopping, stop working, clearly
Wash and restore, after water quality in burned out area reaches related environmental regulations requirement, shut-in well process is carried out to A phase gasification furnaces, herein, institute
There is orientation injection well to shunt in a well at from bottom to overlying rock using cement.All vertical product wells are shunt in a well from coal using cement
Layer bottom is to ground；
G) injection well vertical section is oriented using the existing A phases, start B phase drilling wells and gasification furnace construction, in process of construction, B phases
Linear gasification furnace monomer sites with respect to the A phases, need overall along the distance that a prearranged pillar is offset perpendicular to gasification furnace direction
(10-30 rice).Final burned out area is intervally arranged to interlock, the support force of maximizing prearranged pillar；
H) when C term areas coal seam consume be close to finish when, new work surface start the B phases light a fire, gasification, repeat step
Rapid a-d, it is ensured that the continuous and steady operation of downstream process；
I) normal production is reached when the B phases, in C phase repeat steps f-g, start D areas gasification furnace and build.
In order that this utility model is more easily understood, it is easy to practical operation, one or more first-selected specific embodiments
With reference to the accompanying drawings, only it is described by way of example.
Description of the drawings
Fig. 1 is linear gasification furnace monomer generalized section.
Fig. 2 (a) and 2 (b) are linear gasification furnace schematic layout patterns.
In figure：1st, orient injection well, 2, vertical product well, 3, overlying rock, 4, coal seam.
Specific embodiment
The utility model discloses a kind of linear gasification furnace and operational approach for coal underground gasifying technology,
To achieve these goals, this utility model provides a kind of linear gasification furnace, including at least one linear gasification
Stove monomer, the linear gasification furnace monomer include following component：
Two orientation injection wells, each orientation injection well include injection casing, the injection well liner of concentric setting
Pipe and Uuderground Supervision System；
Coiled tubing, the oxidant injection device that can be pulled back and ground down-firing are mounted in the internal lining pipe of orientation injection well
Equipment；
One vertical product well, including vertical product casing, the product pipe of concentric setting, Uuderground Supervision System, produce
QC with the distance of confined goods bottom is more than zero after maximum heat prolonged expansion by well mouth hanger free suspension；
Prearranged pillar between orientation injection well and confined goods well, and intersect each other insertion in tail end, vertical product well location
In centre, orientation injection well is located at vertical product well both sides respectively, and the angle between two orientation injection wells is 60-180 °, preferably
For 90-180 °.
Vertical product well well head is provided with synthesis gas on-line period analysis system and control system.
The coal column of certain size is reserved between each linear gasification furnace monomer, it is ensured that each gasification furnace is closed independence
Operating unit.
Synthesis gas on-line period analysis system and control system independent operation of each linear gasification furnace monomer according to itself
Guarantee the synthesis gas production of continuous-stable.
When the emergency cases such as blocking, flame-out, oxygen leakage occurs in some linear gasification furnace monomer, positioned at the linear gasification
The Uuderground Supervision System and well head synthesis gas on-line period analysis system of stove monomer can find in time and feed back, be conducive in time solely
On the spot reply processes the gasification furnace, minimizes various potential safety hazards, it is ensured that underground gasification stability and reliability.Standby process side
Case is that one side positioning injection well of Temporarily Closed judges emergency location according to the unilateral condition of production and processes.
After gasification terminates, the orientation injection well of new gasification furnace can utilize the orientation injection well that shut-in well discards linear gasification furnace to hang down
Straight section structure, reduces drilling cost.
Orientation horizontal channel length of the injection well in coal seam is up to 500-1500 rice, preferred 800-1200 rice.Orientation note
Enter well include high-temperature cement well cementation injection casing, concentric setting inject into well bushing pipe, installed in liner pipe outer wall
Uuderground Supervision System.Wherein inject casing to start to extend to the bottom position parallel with seat earth from ground,
The bushing pipe that injects into well of ignition location upstream is the complete pipeline section without perforate design, and its material is ordinary carbon steel pipe, seamless steel pipe
Or engagement steel pipe, injecting into well the perforate pipeline section that bushing pipe is designed from ignition location to its tail end for perforate, the aperture of perforate is 5-
35mm, perforate account for the 5-35% for injecting into well bushing pipe area, Uuderground Supervision System with interval mode layout of interlocking, the perforate gross area
Including temperature, pressure and sonic sensor, extend to outside bushing pipe its top along injecting into well.
Inject into well, the oxidant injection device that can be pulled back and underground ignition installation are used
In subterranean coal igniting, the injection and the control of gasification process process of oxidant and gasifying agent needed for normal production, it is ensured that high
The steady production of quality synthesis gas.
Vertical product well, including product casing, the product pipe of concentric setting, Uuderground Supervision System table etc..Product pipe
For free suspension, after maximum heat prolonged expansion, it is more than zero with the distance of product bottom.
Synthesis gas on-line period analysis system is arranged on product well exit, closes for the single linear gasification furnace of independent monitoring
Into makings amount and oxygen content, and control system and security system are fed back in time, it is ensured that the safety of whole gasification process, it is stable
Property and reliability.
According to geology conditional decision, the prearranged pillar between linear gasification furnace monomer is 10-30 rice, to guarantee that each is linear
It is mutually isolated between gasification furnace monomer, it is independent operation unit.Inside final coal seam, burned out area is preferably staggeredly intervally arranged, can be most
The support force of bigization prearranged pillar.
Linear gasification furnace monomer burned out area width is controllable, with specific reference to linear gasification furnace monomer operating pressure, coal seam thickness,
The factors such as the resistance to compression stretching resistance of gasification furnace heat transference efficiency, coal seam and its overlying rock, the stability of synthesis gas quality are determined.One
As situation be 2-6 times of coal seam thickness, about 10-50 rice, preferred 20-40 rice.
When carrying out gasification furnace group's layout, between the directional well (injection well) of adjacent two linear gasification furnace monomer homonymies
Distance need to include prearranged pillar width and burned out area width, generally 20-80 rice, preferred 30-70 rice.
In accompanying drawing, digital numbering identical part is same part
An embodiment in this utility model, linear coal underground gasifying furnace are as shown in Figure 1.Linear gasification furnace monomer by
Two orientation injection wells 1 and a vertical product well 2 are constituted, and are run through using peupendicular hole drilling and well completion technology in precalculated position
Rock stratum 3 arrives 4 bottom of coal seam, builds vertical product well 2, places signal projector guiding Directional Drilling in 2 bottom of vertical product well
Well.In vertical product well both sides, the precalculated position of 500-1500 rice starts directed drilling, through overlying rock 3 to 4 bottom of coal seam.
Guided according to the signal projector of 2 bottom of vertical product well, in the position carrying out horizontal directional drilling close to 4 bottom of coal seam simultaneously
Completion.Two orientation injection wells intersect at vertical product bottom insertion each other.Angle between orientation injection well can be 60-
180 degree, preferred 90-180 degree.In orientation injection well horizontal segment, apart from vertical product well two ends 10-100 rice (preferred 30-60
Rice) two injection well horizontal channels in simultaneously implement to light a fire.After igniting success, air, oxygen-enriched is switched to according to technological requirement
Or pure oxygen gasification process.After synthesis gas quality is less than design standard or after burned out area width reaches design requirement, note at two
Enter well well head while implementing pullback operation to noting oxygen equipment, combustion zone and gasification zone are moved to into fresh coal seam, high-quality is produced
Synthesis gas.When the emergency cases such as blocking, flame-out, oxygen leakage occurs in some linear gasification furnace monomer, positioned at linear gasification
The underground instrument monitoring system and well head synthesis gas on-line period analysis system of stove monomer can find in time and process.Meanwhile, can
One side positioning injection well of Temporarily Closed, judges emergency location according to the unilateral condition of production and processes.
This utility model another embodiment, shown in such as Fig. 2 (a) and (b), carries out large-scale industry using the gasification furnace
Layout and operational approach that metaplasia is produced.Specific implementation method is as follows：First, according to project construction scale, determine that A phase projects are linear
Gasification furnace number n, A1, A2 ... ... An are followed successively by, according to the parallelism structural layout of linear gasification furnace.Adjacent two are linear
The distance between directional well (injection well) of gasification furnace monomer homonymy is 20-80 rice, including prearranged pillar width 10-30 rice and combustion
Depletion region width 10-50 rice；Second, in the linear gasification furnace monomers of A1, apart from vertical product well two ends 10-100 rice (preferably
30-60 rice) two orientation injection well horizontal channels in implement simultaneously to light a fire, unqualified tail gas is incorporated to ground exhaust pipe, defeated
It is sent to flare discharge；3rd, after igniting success, air, oxygen-enriched or pure oxygen gasification process, synthesis gas are switched to according to technological requirement
After quality meets design standard, ground synthesis gas pipeline is incorporated to, is transported to purified synthesis gas and processes and the comprehensive profit of downstream syngas
Use technique；4th, successively to A2, A3 ... ... An are lighted a fire and technique switches to normal production, and unqualified tail gas is incorporated to ground
Exhaust pipe, is transported to flare discharge, and qualified synthesis gas product is incorporated to ground synthesis gas pipeline, is transported to purified synthesis gas process
With downstream syngas comprehensive utilization process；5th, when A term areas coal seam consumes close finishing, start the C phases in new work surface
Drilling well, igniting, gasification, repeat step first to fourth, it is ensured that the continuous and steady operation of downstream process；6th, reach when the C phases
To normal production, at the end of the A phases gasify, successively to A1, A2 ... ... An carry out stopping, stop working, clean and restoring, and treat burned out area
After interior water quality reaches related environmental regulations requirement, shut-in well process is carried out to A phase gasification furnaces, herein, all orientation injection wells are adopted
Cement is shunt in a well at from bottom to overlying rock, and all vertical product wells are shunt in a well from bottom to ground using cement；The
Seven, injection well vertical section is oriented using the existing A phases, start B phase drilling wells and gasification furnace construction, in process of construction, the gasification furnace of B phases
Position needs the overall distance (10-30 rice) along perpendicular to one prearranged pillar of gasification furnace direction skew with respect to the A phases, final to fire
Dead zone is intervally arranged to interlock, the support force of maximizing prearranged pillar；8th, when C term areas coal seam consumes close finishing,
New work surface start the B phases light a fire, gasification, repeat step first to fourth, it is ensured that downstream process continuous-stable fortune
OK；9th, normal production is reached when the B phases, in C phase repeat steps the 6th and the 7th, start D areas gasification furnace and build.
In sum, linear gasification furnace of the present utility model has the advantage that：1. simple structure, new linear gasification furnace orientation
Injection well can reuse the vertical segment structure that the discarded linear gasification furnace monomer of shut-in well orients injection well, reduce drilling cost.2.
Gasification furnace length is effectively extended, is extended the life-span of gasification furnace, is improve the economic benefit of project.3. gasification furnace burned out area width
Degree is controllable, implements the probability of the problems such as longwell/banding exploitation, minimum roof inbreak or formation subsidence.4. each line
Property gasification furnace monomer is closed separate unit, is individually operated and is controlled, and any one gasification furnace unit goes wrong
When do not affect the normal production of gasification furnace group, it is ensured that the safety of synthesis gas production, stability and seriality.5. each linear gas
The ignition process for changing stove monomer can be implemented step by step, significantly reduce the discharge capacity of the unqualified tail gas of ignition phase.6. burned out area is tied
Structure is simple, can implement step by step without dead angle, the parking gasified after terminating, flame-out, cleaning and recovery operation, safe and simple.
" embodiment " mentioned above is included in the correlation properties described in embodiment, structure, feature
It is all related to wherein at least one embodiment of the present utility model.Therefore, the above repeatedly refers to " an embodiment
In " where not all refer in particular to same embodiment.Additionally, the correlation properties for describing in embodiments, structure, feature can
With one or more combinations in any suitable manner.
Preferred embodiment of the present utility model is the foregoing is only, this utility model is not limited to.For
Those skilled in the art, this utility model can have various change and change.It is all it is of the present utility model spirit and principle it
Interior, any modification, equivalent substitution and improvements done etc. are should be included within protection domain of the present utility model.
Claims (9)
1. the linear gasification furnace of coal underground gasifying technology, including at least one linear gasification furnace monomer are used for, it is characterised in that：
The linear gasification furnace monomer includes following component：
Two orientation injection wells, each orientation injection well include injection casing, concentric setting inject into well bushing pipe and
Positioned at the Uuderground Supervision System of liner pipe outer wall；
It is mounted on coiled tubing, the oxidant injection device that can be pulled back and ground down-firing to set in the internal lining pipe of orientation injection well
It is standby；
One vertical product well, including vertical product casing, the product pipe of concentric setting, Uuderground Supervision System, product pipe
By well mouth hanger free suspension, after maximum heat prolonged expansion, it is more than zero with the distance of confined goods bottom；
In centre, orientation injection well is located at vertical product well both sides, vertical product well and orientation injection to vertical product well location respectively
Well tail end insertion, the angle between two orientation injection wells is 60-180 °,
Vertical product well well head is provided with synthesis gas on-line period analysis system and control system.
2. the linear gasification furnace for coal underground gasifying technology according to claim 1, it is characterised in that：Injection well set
Pipe starts to extend to the bottom position parallel with seat earth from ground, and ignition location upstream injects into well bushing pipe
It is the complete pipeline section without perforate design, its material is ordinary carbon steel pipe, seamless steel pipe or engagement steel pipe, injects into well bushing pipe from point
The perforate pipeline section that fiery position is designed to its tail end for perforate, the aperture of perforate is 5-35mm, perforate with interval mode layout of interlocking,
The perforate gross area accounts for the 5-35% for injecting into well bushing pipe area, and Uuderground Supervision System includes temperature, pressure and sonic sensor, edge
.
3. the linear gasification furnace for coal underground gasifying technology according to claim 1, it is characterised in that：Two orientation notes
It is 90-180 ° to enter the angle between well.
4. the linear gasification furnace for coal underground gasifying technology according to claim 1, it is characterised in that：Each is linear
The coal column of certain size is reserved between gasification furnace monomer all, width is 10-30 rice, it is ensured that each linear gasification furnace monomer is closed
Independent operation unit, ignition process implements step by step, lights a fire successively, and each linear gasification furnace monomer exists according to the synthesis gas of itself
Line sampling analytical system and control system independent operation guarantee the synthesis gas production of continuous-stable.
5. the linear gasification furnace for coal underground gasifying technology according to claim 1, it is characterised in that：Orientation injection
The length of horizontal channel of the well in coal seam is 500-1500 rice.
6. the linear gasification furnace for coal underground gasifying technology according to claim 5, it is characterised in that：Orientation injection
The length of horizontal channel of the well in coal seam is 800-1200 rice.
7. the linear gasification furnace for coal underground gasifying technology according to claim 1, it is characterised in that：It is linear to gasify
The burned out area width range of stove monomer is in 10-50 rice.
8. the linear gasification furnace for coal underground gasifying technology according to claim 7, it is characterised in that：It is linear to gasify
The burned out area width range of stove monomer is in 20-40 rice.
9. the linear gasification furnace for coal underground gasifying technology according to claim 4, it is characterised in that：Prearranged pillar
To be staggeredly intervally arranged, to maximize support force of the prearranged pillar to whole mining area, it is to avoid formation subsidence or surface subsidence are asked
Topic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620963468.5U CN206053930U (en) | 2016-08-28 | 2016-08-28 | For the linear gasification furnace of coal underground gasifying technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620963468.5U CN206053930U (en) | 2016-08-28 | 2016-08-28 | For the linear gasification furnace of coal underground gasifying technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206053930U true CN206053930U (en) | 2017-03-29 |
Family
ID=58382494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620963468.5U Withdrawn - After Issue CN206053930U (en) | 2016-08-28 | 2016-08-28 | For the linear gasification furnace of coal underground gasifying technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206053930U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437673A (en) * | 2016-08-28 | 2017-02-22 | 中为(上海)能源技术有限公司 | Linear gasification furnace used for coal underground gasification process and operation method |
-
2016
- 2016-08-28 CN CN201620963468.5U patent/CN206053930U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437673A (en) * | 2016-08-28 | 2017-02-22 | 中为(上海)能源技术有限公司 | Linear gasification furnace used for coal underground gasification process and operation method |
| CN106437673B (en) * | 2016-08-28 | 2019-05-17 | 中为(上海)能源技术有限公司 | Linear gasification furnace and operating method for coal underground gasifying technology |
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