CN2802082Y - Water circulation protection system of underground gasification furnace - Google Patents
Water circulation protection system of underground gasification furnace Download PDFInfo
- Publication number
- CN2802082Y CN2802082Y CN 200520080921 CN200520080921U CN2802082Y CN 2802082 Y CN2802082 Y CN 2802082Y CN 200520080921 CN200520080921 CN 200520080921 CN 200520080921 U CN200520080921 U CN 200520080921U CN 2802082 Y CN2802082 Y CN 2802082Y
- Authority
- CN
- China
- Prior art keywords
- water
- gasification furnace
- pipe
- sluicing
- underground gasification
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Chimneys And Flues (AREA)
Abstract
The utility model discloses a water circulation protection system of an underground gasification furnace, which belongs to a coal underground gasification assistant protection device. The water circulation protection system of an underground gasification furnace comprises a water purifying tank, a spraying mechanism, a water release concealed pipe, a U-shaped water release device, a water storage tank and a water pump, which are mutually connected in series, a water circulating system is formed, wherein the spraying mechanism is arranged under a gas flow drilling pipe of the gasification furnace and is connected with the water purifying tank which is arranged on the ground via a water pipe. The water release concealed pipe is arranged between the spraying mechanism and the U-shaped water release device. The U-shaped water release device penetrates through under a closing wall of the gasification furnace and is connected with the water storage tank which is arranged in a water release lane of the gasification furnace, and the water storage tank is connected with the water purifying tank through the water pump and a water pipe. The water circulation protection system of an underground gasification furnace of the utility model has simple structure and reasonable arrangement, and various problems such as the temperature drop of coal gas, the temperature control protection, the gas exhaust in a blind lane, etc., can be solved simultaneously. The safety and the stability of the underground gasification technology of the coal gas can be improved by the application of the utility model.
Description
Technical field
The utility model relates to a kind of coal underground gasifying furnace auxiliary protection system that is used for the underground coal gasification(UCG) engineering, especially a kind of underground gasification furnace water circulation protection system.
Background technology
Coal underground gasification technology is a kind ofly will be imbedded in the burning that underground coal has control on the spot, and chemical reaction by coal and heat effect produce fuel gas and with the clean coal technology of its delivery application., unaccommodated characteristics unmanned with its down-hole, and collection shaft building, coal mining, gasification three big technologies be the technology characteristics of one, is described as second generation coal-mining method, is subjected to the attention of countries in the world deeply.Closely about ten years, China Mining University exploits situation in conjunction with coal in China, on the basis of summing up domestic and international underground coal gasification(UCG) experience, created the well formula arranged the underground gasification new technology of " long-channel, big section ", success successively in Xuzhou, mining areas such as Tangshan, new river in Shangdong Province have carried out type approval test, and reach technical level leading in the world, for the development of the coal underground gasification technology technology of China is laid a good foundation.But " long-channel, big section " coal underground gasification technology engineering also is not very perfect, has six problems of demanding urgently and must solving to need further research, optimize and improve:
1, because of being the cement mortar pouring structure between drill pipe and the borehole wall, when drill pipe produces bigger telescopic variation because of expanding with heat and contract with cold, this pouring structure will be destroyed, so the high temperature raw coke oven gas can make drill pipe temperature distortion damage, corrosion and damage and play up and down.
2, the tar of high temperature raw coke oven gas, dust etc. condense with temperature drop in drill pipe, form the obstruction that is difficult to remove.
3, the pipeline of high temperature raw coke oven gas opposite bore pipe has the high request that heatproof is anticorrosion and be incubated, selection difficulty and cost height; The tar of raw coke oven gas, dust equally also can condense with temperature drop in this pipeline, easily form difficult obstruction of removing.
4, temperature element (thermocouple, lead etc.) is easily burnt in the stove.
5, the high density pollution draining can't be handled in the underground gasification furnace.
6, often contain certain density coal gas in the sluicing lane that is separated by by envelope wall with gasification furnace, do not allow return air to the pit mining district, logical, the air draft before the people enters is a problem that must solve.
Summary of the invention
Technical assignment of the present utility model is to provide a kind of underground gasification furnace water circulation protection system at above-mentioned deficiency of the prior art, and this water circulation protection system is simple in structure, be provided with rationally, can solve various problems such as coal gas cooling, temperature control protection, blind gallery exhaust simultaneously.
The technical scheme that its technical problem that solves the utility model adopts is: underground gasification furnace water circulation protection system; its structure comprises that mutual serial connection constitutes the purification water pool of water circulation system; spraying mechanism; the sluicing hidden pipe; U type water draw-off; reservoir and water pump; spraying mechanism is arranged on gasification furnace air-flow drill pipe below; and join by water pipe and the purification water pool that is arranged on ground; the sluicing hidden pipe is arranged between spraying mechanism and the U type water draw-off; U type water draw-off passes below the gasification furnace fire dam; and join with the reservoir that is arranged in the gasification furnace sluicing lane, reservoir joins by water pump and water pipe and purification water pool.Reservoir compiles gushing water in shower water that spraying mechanism flows out and the gasification furnace by U type water draw-off, be delivered to the purification water pool on ground then by water pump, cool off, precipitate, purify, water after the purification can enter spraying mechanism by the gravity flow effect raw coke oven gas is carried out spraying cooling and preliminary purification, flow into U type water draw-off by the sluicing hidden pipe at last, enter next circulation.
For the air that contains coal gas in the sluicing lane is extracted out, the position near reservoir in gasification furnace sluicing lane is provided with the exhaust drill pipe, and the top of exhaust drill pipe is provided with exhaust fan.
Run through air-flow drill pipe, spraying mechanism and sluicing hidden pipe and be provided with cable for measuring temperature, and have temperature probe to lean out, can under guaranteeing the situation that cable for measuring temperature is not burnt out, measure the temperature in the gas channel like this at sluicing hidden pipe place.
Described spraying mechanism is made of shower nozzle and spray pond, the shower nozzle that joins by water pipe and purification water pool be arranged in the air-flow drill pipe and the air-flow drill pipe below gas channel in, the spray pond be arranged on the interior shower nozzle of gas channel below, in order to accept shower water.
The sluicing hidden pipe is embedded in gas channel bottom, and its lay aspect, the gradient is identical with aspect, the gradient of gasification furnace gas channel.
Purification water pool joins by water pipe and the shower nozzle that runs through air-flow boring, joins by water pipe and the water pump that runs through the exhaust drill pipe.
Underground gasification furnace water circulation protection system of the present utility model is compared with prior art, has following outstanding beneficial effect:
(1) after the native system operation, can replace the first purification of ground empty spray tower and packed tower, the raw coke oven gas of discharging from the air-flow drill pipe can directly add to be sent to desulfurizing tower or to purify and requires not too high user (as power plant), reduces ground floor space and equipment investment.
(2) the native system operation can form independently gasification furnace drainage system, has solved the handling problem of high density pollution trickle; Simultaneously, save drainage plant in the sluicing lane, alleviated the burden of the total draining of mine.
(3) setting of exhaust drill pipe and exhaust fan, will contain in the sluicing lane air of coal gas extract out, guarantee to contain that the air of coal gas is unlikely gets back to the mine main blending, form independently air return system, guarantee air-safety in the sluicing lane, and alleviated the burden of the total air draft of mine.
(4) cable for measuring temperature is arranged in the sluicing hidden pipe, can makes the selection face of cable for measuring temperature and temperature probe increase, lay degree of freedom and strengthen, and needn't reduce investment again with expensive proprietary material customization.
(5) the air-flow drill pipe of underground gasification furnace is during inlet and outlet, be subjected to the effect of high temperature gas flow, produce strong thermal expansion, thereby the stability of drill pipe can be damaged, and the spraying mechanism of native system, make full use of enough height of air-flow drill pipe and the enough spaces of gas channel, water, gas are had carry out interchange of heat sufficient time of contact, both can effectively lower the temperature, solve the not enough problem of stability, can tentatively wash raw coke oven gas again, solve the thermal compensation problem again simultaneously, achieve many things at one stroke.
(6) can effectively reduce the corrosiveness of high temperature gas flow, prolong the service time of drill pipe sleeve pipe; Simultaneously because the reduction of gas temperature, volume reduces, and makes that the drill pipe diameter is corresponding to reduce, and reduces investment outlay.
(7) coal gas had just carried out the cooling purification before going out boring, and ground line road, equipment are had good protective action; Simultaneously, because the reduction of gas temperature, volume reduces, and makes that the gas pipeline caliber is corresponding with unit type on the ground to reduce, and reduces investment outlay.
(8) after the raw coke oven gas cooling, the requirement anticorrosion to the heatproof that purifies preceding pipeline and insulation of opposite bore pipe reduces, and tubing easily selects, and reduces cost.
Description of drawings
Accompanying drawing 1 is a underground gasification furnace water circulation protection system structural representation of the present utility model;
Accompanying drawing 2 is structural representations of the under ground portion when implementing of the underground gasification furnace water circulation protection system in the accompanying drawing 1.
The specific embodiment
Explain below with reference to Figure of description underground gasification furnace water circulation protection system of the present utility model being done.
Shown in accompanying drawing 1,2; underground gasification furnace water circulation protection system of the present utility model, its structure comprise purification water pool (1), spraying mechanism, sluicing hidden pipe (2), U type water draw-off (3), reservoir (4), water pump (5), exhaust drill pipe (12) and cable for measuring temperature (13).Wherein, purification water pool (1), spraying mechanism, sluicing hidden pipe (2), U type water draw-off (3), reservoir (4), water pump (5) are connected in series mutually and constitute water circulation system.Spraying mechanism is made of shower nozzle (6) and spray pond (7), shower nozzle (6) is arranged on and reaches in the gasification furnace air-flow drill pipe (8) in the following gas channel (9) of air-flow drill pipe (8), and joins by water pipe (10) that passes air-flow drill pipe (8) and the purification water pool (1) that is arranged on ground; The gas channel (9) that spray pond (7) then is arranged on below the shower nozzle (6) is interior to accept shower water.Cast iron (or pottery) system sluicing hidden pipe (2) is embedded in gas channel (9) bottom, on connect the spray pond (7), under connect U type water draw-off (3), it lays aspect, the gradient is identical with aspect, the gradient of gasification furnace gas channel (9), cable for measuring temperature (13) passes air-flow drill pipe (8), spray pond (7) extends to sluicing hidden pipe (2), and has temperature probe (14) to lean out from the sidewall of sluicing hidden pipe (2).U type water draw-off (3) passes gasification furnace fire dam (10) and joins with the reservoir (4) that is arranged in the gasification furnace sluicing lane (11), and reservoir (4) joins with purification water pool (1) by pump (5) and water pipe (15) again.Exhaust drill pipe (12) is for being arranged on the drill pipe between sluicing lane (11) and the ground, and its end is provided with exhaust fan (16), and the water pipe (15) that connects water pump (5) and purification water pool (1) passes from exhaust drill pipe (12).
In the air-flow drill pipe (8) and the shower nozzle (6) in the gas channel (9) below the air-flow drill pipe (8) can be set to along spray and the many rows of contrary spray shower nozzles.
Described air-flow drill pipe (8) is the inlet, outlet drill pipe and the auxiliary bore hole pipe of underground gasification furnace; U type water draw-off (3) and reservoir (4) can utilize gasification furnace original U type water draw-off and reservoir.Sluicing hidden pipe (2) can also be built into water stream channel with masonry etc. except that can making cylinder iron (or pottery) water making pipe.
For guarantee quantity of circulating water rationally, it is chain underground gasification furnace water circulation protection system of the present utility model can be arranged to automatic control, for example, measures when big when gushing water in the gasification furnace (or trickle), shower water can suitably weaken; When the coal gas air outlet temperature of the air-flow drill pipe mouth of pipe raises, can suitably increase water spray.
And in system when operation, both can have been calculated position, combustion zone and overview according to the gas channel temperature gradient that temperature probe records, and also can work out corresponding temperature control software, reckoning automatically, demonstration, simulated combustion zone position and overview.
Higher because of the raw coke oven gas water content behind the spraying cooling, so can no longer require insulation to purifying preceding pipeline, should bow and lay, and self-draining arrangement is set at low spot though connect drill pipe.
Except that the described technical characterictic of manual, be the known technology of those skilled in the art.
Claims (6)
1; underground gasification furnace water circulation protection system; it is characterized in that; its structure comprises that mutual serial connection constitutes the purification water pool of water circulation system; spraying mechanism; the sluicing hidden pipe; U type water draw-off; reservoir and water pump; spraying mechanism is arranged on gasification furnace air-flow drill pipe below; and join by water pipe and the purification water pool that is arranged on ground; the sluicing hidden pipe is arranged between spraying mechanism and the U type water draw-off; U type water draw-off passes below the gasification furnace fire dam; and join with the reservoir that is arranged in the gasification furnace sluicing lane, reservoir joins by water pump and water pipe and purification water pool.
2, underground gasification furnace water circulation protection system according to claim 1 is characterized in that the position near reservoir is provided with the exhaust drill pipe in the gasification furnace sluicing lane, and the top of exhaust drill pipe is provided with exhaust fan.
3, underground gasification furnace water circulation protection system according to claim 1 is characterized in that running through air-flow drill pipe, spraying mechanism and sluicing hidden pipe and is provided with cable for measuring temperature, and has temperature probe to lean out at sluicing hidden pipe place.
4, according to claim 1,2 or 3 described underground gasification furnace water circulation protection systems; it is characterized in that described spraying mechanism is made of shower nozzle and spray pond; the shower nozzle that joins by water pipe and purification water pool be arranged in the air-flow drill pipe and the air-flow drill pipe below gas channel in, the spray pond be arranged on shower nozzle in the gas channel below.
5, according to claim 1,2 or 3 described underground gasification furnace water circulation protection systems, the hidden pipe that it is characterized in that sluicing is embedded in gas channel bottom, and lay aspect, the gradient is identical with aspect, the gradient of gasification furnace gas channel.
6,, it is characterized in that purification water pool joins by water pipe and the shower nozzle that runs through air-flow boring, joins by water pipe and the water pump that runs through the exhaust drill pipe according to claim 1,2 or 3 described underground gasification furnace water circulation protection systems.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520080921 CN2802082Y (en) | 2005-03-18 | 2005-03-18 | Water circulation protection system of underground gasification furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520080921 CN2802082Y (en) | 2005-03-18 | 2005-03-18 | Water circulation protection system of underground gasification furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2802082Y true CN2802082Y (en) | 2006-08-02 |
Family
ID=36846792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520080921 Expired - Fee Related CN2802082Y (en) | 2005-03-18 | 2005-03-18 | Water circulation protection system of underground gasification furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2802082Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9963949B2 (en) | 2012-06-28 | 2018-05-08 | Carbon Energy Limited | Sacrificial liner linkages for auto-shortening an injection pipe for underground coal gasification |
| US9976403B2 (en) | 2012-06-28 | 2018-05-22 | Carbon Energy Limited | Method for shortening an injection pipe for underground coal gasification |
-
2005
- 2005-03-18 CN CN 200520080921 patent/CN2802082Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9963949B2 (en) | 2012-06-28 | 2018-05-08 | Carbon Energy Limited | Sacrificial liner linkages for auto-shortening an injection pipe for underground coal gasification |
| US9976403B2 (en) | 2012-06-28 | 2018-05-22 | Carbon Energy Limited | Method for shortening an injection pipe for underground coal gasification |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1916490B (en) | Smokeless burning technique and equipment with fire fontanel being setup inside furnace | |
| CN105525903A (en) | Upward gas injection coal roadway gasifier type gasification mine | |
| CN1121138A (en) | Long-passage large-section underground coal gasification of mine | |
| CN100406676C (en) | Underground gasification production mine | |
| CN2802082Y (en) | Water circulation protection system of underground gasification furnace | |
| CN208726858U (en) | A kind of bellows garbage pool Leachate site flase floor dredger | |
| CN114541964A (en) | Method for sealing carbon dioxide in basalt by adopting butt well | |
| CN103642505B (en) | Grouting construction method of coke oven hot roof mud | |
| CN1077951C (en) | Coal underground gasifying technology | |
| CN107721217A (en) | One kind activation kiln system and its control method | |
| CN201421186Y (en) | High-efficiency energy-saving emission-reducing organic heat carrier boiler of circulating fluidize bed | |
| CN205297520U (en) | Go up to gas injection coal road gasifier formula gasification mine | |
| WO1996028637A1 (en) | A two-stage of method for gasificating undergrounds coal in situ | |
| CN207121545U (en) | A kind of activation kiln that cement additive is produced using gangue and Polluted Soil | |
| CN1888528A (en) | Thick oil exploiting coal firiag steam boiler | |
| CN200964394Y (en) | Vertical cleaning heat recovery coking furnace | |
| CN200964829Y (en) | Heating device for oil well | |
| CN108106002A (en) | Emission-reduction boiler | |
| CN214891227U (en) | Combustion furnace for preparing asphalt mixture | |
| CN201753920U (en) | Multi-step arc buffering abrasion resisting device for circulating fluidized bed boiler | |
| CN208074930U (en) | A kind of boiler waste heat recovery system | |
| CN205152160U (en) | Slag gasifier | |
| CN202371732U (en) | Furnace bottom structure of boiler | |
| CN216688005U (en) | Environment-friendly coke oven top | |
| RU84061U1 (en) | UNDERGROUND GAS GENERATOR |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060802 Termination date: 20140318 |