CN102732325A - High-pressure and high-temperature furnace slag wind and water cooling and deslagging device - Google Patents
High-pressure and high-temperature furnace slag wind and water cooling and deslagging device Download PDFInfo
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- CN102732325A CN102732325A CN2012102346518A CN201210234651A CN102732325A CN 102732325 A CN102732325 A CN 102732325A CN 2012102346518 A CN2012102346518 A CN 2012102346518A CN 201210234651 A CN201210234651 A CN 201210234651A CN 102732325 A CN102732325 A CN 102732325A
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Abstract
The invention discloses a high-pressure and high-temperature furnace slag wind and water cooling and deslagging device, which comprises a high-pressure temperature reduction tank, a pressure buffer tank, a normal-pressure conveying tank and a conveying ejector, wherein the high-pressure temperature reduction tank comprises a high-pressure temperature reduction tank body, a middle loosening wind device of the high-pressure temperature reduction tank, a cooling coil pipe heat exchanger, a taper loosening wind device of the high-pressure temperature reduction tank and double valves of the high-pressure temperature reduction tank; the normal-pressure conveying tank comprises a normal-pressure tank body, a taper loosening wind device of the normal-pressure tank body and double valves of the normal-pressure tank; and the conveying ejector comprises a wind supply pipeline, an injector and an output pipeline. According to the high-pressure and high-temperature furnace slag wind and water cooling and deslagging device disclosed by the invention, the purposes of pressure and temperature reduction under the high-pressure and high-temperature environment as well as the intermittent emission of the furnace slag are realized. The high-pressure and high-temperature furnace slag wind and water cooling and deslagging device has various advantages of automatic control, high-efficient cooling, energy saving, strong periodic continuous production capability and the like, and can adapt to the production requirement of the large-scale coal gasification technology.
Description
Technical field
The present invention relates to altogether cold type slag device of a kind of high pressure-temperature slag geomantic omen, relate in particular to slag discharging and cooling system and device at the bottom of a kind of fluidized bed coal gasifier inner high voltage high temperature.
Background technology
China's primary energy source is main with coal mainly, and wherein most of coal utilizes with the generating of burning form.Along with the increasingly stringent of Air Pollutant Emission control criterion and the demand of the national economic development, the HTHP gasification becomes the main mode of utilizing of clean coal technology and Poly-generation technology gradually.For conventional coal incinerators; Be under condition of normal pressure, to utilize existing mature technology; The high temperature furnace slag particle is discharged burner hearth through interchanger cooling back, but, then be difficult to directly adopt the conventional slag type of cooling and technology discharging to the environment in the high pressure-temperature fluidized bed coal gasifier.Therefore developing a kind of slag emission technique device that can adapt to high-pressure high-temperature environment is one of high pressure-temperature fluidized bed coal gasification technology development key problem.
Summary of the invention
The objective of the invention is the deslagging problem to the high pressure-temperature fluidized bed coal gasifier, a kind of high pressure-temperature slag geomantic omen cold type slag device altogether be provided, with realize coal gasifier continuously, safe operation and production.
The technical scheme that the present invention adopts is: a kind of high pressure-temperature slag geomantic omen is cold type slag device altogether, comprises high pressure desuperheat jar, pressure surge tank, normal pressure transfer pot and delivery injector;
Said high pressure desuperheat jar becomes flexible wind apparatus, spiral coil cooling tube interchanger, the loosening wind apparatus of high pressure desuperheat jar cone and high pressure desuperheat jar double valve in the middle of comprising high pressure desuperheat tank body, high pressure desuperheat jar; Wind apparatus and spiral coil cooling tube interchanger are become flexible in the middle of high pressure desuperheat jar is installed in said high pressure desuperheat tank body middle part; Said high pressure desuperheat tank body bottom conical part is equipped with the loosening wind apparatus of high pressure desuperheat jar cone, and the bottom of said high pressure desuperheat tank body is connected with high pressure desuperheat jar double valve;
Said pressure surge tank comprises buffering tank body, the loosening wind apparatus of surge tank cone and surge tank double valve, and said buffering tank body bottom conical part is equipped with the loosening wind apparatus of surge tank cone, and the bottom of said buffering tank body is connected with the surge tank double valve;
Said normal pressure transfer pot comprises normal pressure tank body, the loosening wind apparatus of normal pressure jar cone and normal pressure jar double valve, and said normal pressure tank body bottom conical part is equipped with the loosening wind apparatus of normal pressure jar cone, and the bottom of said normal pressure tank body is connected with normal pressure jar double valve;
Said delivery injector comprises air supply duct, injector and output channel, and said injector one end is connected with air supply duct, and the other end is connected with output channel;
Said high pressure desuperheat jar is connected with the pressure buffer tank top through high pressure desuperheat jar double valve, and said pressure surge tank is connected with normal pressure transfer pot top through the surge tank double valve, and the normal pressure transfer pot is connected with the injector of delivery injector through normal pressure jar double valve.
As preferably; Said slag discharging device also comprises thin slag collection feed bin; This thin slag is collected feed bin and is comprised first valve, second valve, cyclonic separator and storage bin, and said cyclonic separator is connected with the buffering tank body of said pressure surge tank through pipeline, and this pipeline is provided with first valve; Said cyclonic separator is provided with second valve with the extraneous pipeline that is connected, and the bottom of said cyclonic separator is connected with storage bin.
As preferably, be provided with a pressure equalizing pipe between said high pressure desuperheat jar and the surge tank, this pressure equalizing pipe is provided with the 3rd valve and the 4th valve, carries out the pressure equilibrium adjustment.
As preferably, the heat-eliminating medium of said spiral coil cooling tube interchanger is liquid or gas, can be water or air.
More than the high-pressure work pressure 1MPa of the present invention, temperature is more than 800 ℃.The loosening wind of loosening wind and cone does not react with slag in the middle of in the high pressure desuperheat jar.High temperature sludge gets into from high pressure desuperheat jar ingress, and the slag storehouse is delivered in the ejection from the delivery injector exit.The part slag is stored in the storage bin.But the heat exchange of geomantic omen heat-eliminating medium is cooled to delivery temperature with high temperature furnace slag in the high pressure desuperheat jar.
Beneficial effect:The present invention has following advantage:
1) the present invention is through intermittence cooling, discharging and the conveying of slag in cooperatively interacting realization high pressure, the high-temperature gasification stove between high pressure desuperheat jar, pressure surge tank and normal pressure transfer pot.
2) three tank body conical parts feed not the fluidized wind with the slag reaction respectively, prevent that slag from stopping up in tank body, realize smooth and easy flow of slag in total system.
3) be connected with pressure equalizing pipe between high pressure desuperheat jar and pressure surge tank, guarantee after the surge tank pressurising pressure maintenance balance in final and the high pressure desuperheat jar.
3) the high temperature sludge cooling is mainly carried out in high pressure desuperheat jar, and through effective cooling of the realization of the heat-eliminating medium high efficient heat exchanging in high temperature warm sludge and spiral coil cooling tube interchanger high temperature sludge, warm sludge is cooled to 250 ~ 350 ℃.
4) thin slag is collected feed bin and can be prevented the fine particle discharge, the protection environment.
In sum; High pressure-temperature slag geomantic omen among the present invention is cold type slag device altogether; Efficiently solve decompression and the desuperheat under high pressure, the hot environment and realize the intermittent discharge of slag; Have can control automatically, efficiently cooling, energy-conservation and many advantages such as continuous production ability periodically, can adapt to the production demand of extensive coal gasifying process.
Description of drawings
Fig. 1 is the high pressure-temperature slag of the present invention geomantic omen structural representation of cold type slag device altogether.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
As shown in Figure 1: a kind of high pressure-temperature slag geomantic omen is cold type slag device altogether, collects feed bin 5 by high pressure desuperheat jar 1, pressure surge tank 2, normal pressure transfer pot 3, delivery injector 4 and thin slag and forms.High pressure desuperheat jar 1 is by loosening wind apparatus 7, spiral coil cooling tube interchanger 8, the loosening wind apparatus 9 of high pressure desuperheat jar cone, high pressure desuperheat jar double valve 10 in the middle of high pressure desuperheat tank body 6, the high pressure desuperheat jar, pressure equalizing pipe 11 compositions such as grade; High pressure desuperheat jar double valve 10 is made up of the 5th valve 14 and the 6th valve 15; Pressure surge tank 2 is made up of buffering tank body 16, the loosening wind apparatus 17 of surge tank cone, surge tank double valve device 18; Normal pressure transfer pot 3 is made up of normal pressure tank body 19, the loosening wind apparatus 20 of normal pressure jar cone, normal pressure jar double valve 21; Delivery injector 4 is made up of air supply duct 22, injector 23 and output channel 24; Thin slag is collected feed bin 5 and is made up of first valve 25, second valve 26, cyclonic separator 27 and storage bin 28.High pressure desuperheat jar 1 is connected with surge tank 2 through high pressure desuperheat jar double valve 10, and pressure surge tank 2 is connected with normal pressure transfer pot 3 through surge tank double valve 18, and normal pressure transfer pot 3 is connected with delivery injector 4 through normal pressure jar double valve 21.More than the high-pressure work pressure 1MPa, temperature is more than 800 ℃.The heat-eliminating medium of high pressure desuperheat jar 1 internal cooling coil heat exchanger 8 is water or air.The loosening wind of loosening wind and high pressure desuperheat jar cone does not react with slag in the middle of the high pressure desuperheat jar.One pressure equalizing pipe 11 is arranged between high pressure desuperheat jar 1 and the pressure surge tank 2, the 3rd valve 12 and the 4th valve 13 are arranged on it, carry out the pressure equilibrium adjustment.Pressure surge tank 2 is collected feed bin 5 with thin slag and is connected.High temperature sludge gets into from high pressure desuperheat jar 1 inlet A, delivers to the slag storehouse from delivery injector 4 outlet B ejections.The part slag is stored in the storage bin 28.The heat exchange of heat-eliminating medium is cooled to delivery temperature with high temperature sludge.
Cold type slag device concrete operations step is following altogether in high pressure-temperature slag of the present invention geomantic omen:
(1) start-up operation.High pressure desuperheat jar double valve 10 is closed, deposit cold slag in advance in jar, in spiral coil cooling tube interchanger 8, feed heat-eliminating medium (water) simultaneously continuously.Under the working conditions, hot slag gets into high pressure desuperheat jar 1 from the fluidized bed coal gasifier of high temperature more than 800 ℃, more than the high pressure 1MPa through inlet A.Loosening wind apparatus 7 becomes flexible wind apparatus 9 with high pressure desuperheat jar cone in the middle of opening high pressure desuperheat jar, makes cold slag be in the Micro Fluid state, makes slag smooth and easy flowing in the decline process continue cooling.
(2) punching operation.Close the 3rd valve 12, the 4th valve 13, first valve 25 and second valve 26, to pressure surge tank 2 pour gas boosting to and the pressure of high pressure desuperheat jar 1 balance each other.The 3rd valve 12 and the 4th valve 13 are opened, and make pressure equilibrium in pressure surge tank 2 and the high pressure desuperheat jar 1.Open high pressure desuperheat jar double valve 10; Cooling slag in the high pressure desuperheat jar 1 gets into pressure surge tank 2 under the effect of the loosening wind apparatus 9 of high pressure desuperheat jar cone; Continue this moment in spiral coil cooling tube interchanger 8, to feed heat-eliminating medium, and open the middle loosening wind apparatus 7 of high pressure desuperheat jar.After cold slag arrives predetermined height in the pressure surge tank 2, close high pressure desuperheat jar double valve 10, close the 3rd valve 12 and the 4th valve 13.Carry out step (1).
(3) pressure release operation.Closing presure surge tank double valve 18 is opened first valve 25 and second valve 26, begins pressure surge tank 2 is carried out pressure release.Have fine particle in the pressure leak process and from pressure surge tank 2, discharge, this parts of fine particle is separated and be collected in the storage bin 28 under the effect of cyclonic separator 27.Pressure surge tank 2 pressure releases are closed first valve 25 and second valve 26 after accomplishing.
(4) normal pressure deslagging.Opening pressure surge tank double valve 18, opening pressure surge tank cone is become flexible wind apparatus 17.Cooling slag in the pressure surge tank 2 gets into normal pressure transfer pot 3 continuously under the effect of the loosening wind apparatus 17 of surge tank cone.After treating the cooling slag emptying in the pressure surge tank 2, close surge tank double valve 18.Carry out step (2), (3).
(5) slag is carried.Open normal pressure jar double valve 21, open the loosening wind apparatus 20 of normal pressure jar cone.Cooling slag in the normal pressure transfer pot 3 gets into delivery injector 4 under the effect of the loosening wind apparatus 20 of normal pressure jar cone, carry down at high-speed gas and be expelled to the slag storehouse from outlet B.After treating the cooling slag emptying in the normal pressure transfer pot 3, close normal pressure jar double valve 21, carry out step (4), (5).
Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.The all available prior art of each integral part not clear and definite in the present embodiment realizes.
Claims (5)
1. a high pressure-temperature slag geomantic omen is total to cold type slag device, it is characterized in that: comprise high pressure desuperheat jar, pressure surge tank, normal pressure transfer pot and delivery injector;
Said high pressure desuperheat jar becomes flexible wind apparatus, spiral coil cooling tube interchanger, the loosening wind apparatus of high pressure desuperheat jar cone and high pressure desuperheat jar double valve in the middle of comprising high pressure desuperheat tank body, high pressure desuperheat jar; Wind apparatus and spiral coil cooling tube interchanger are become flexible in the middle of high pressure desuperheat jar is installed in said high pressure desuperheat tank body middle part; Said high pressure desuperheat tank body bottom conical part is equipped with the loosening wind apparatus of high pressure desuperheat jar cone, and the bottom of said high pressure desuperheat tank body is connected with high pressure desuperheat jar double valve;
Said pressure surge tank comprises buffering tank body, the loosening wind apparatus of surge tank cone and surge tank double valve, and said buffering tank body bottom conical part is equipped with the loosening wind apparatus of surge tank cone, and the bottom of said buffering tank body is connected with the surge tank double valve;
Said normal pressure transfer pot comprises normal pressure tank body, the loosening wind apparatus of normal pressure jar cone and normal pressure jar double valve, and said normal pressure tank body bottom conical part is equipped with the loosening wind apparatus of normal pressure jar cone, and the bottom of said normal pressure tank body is connected with normal pressure jar double valve;
Said delivery injector comprises air supply duct, injector and output channel, and said injector one end is connected with air supply duct, and the other end is connected with output channel;
Said high pressure desuperheat jar is connected with the pressure buffer tank top through high pressure desuperheat jar double valve, and said pressure surge tank is connected with normal pressure transfer pot top through the surge tank double valve, and the normal pressure transfer pot is connected with the injector of delivery injector through normal pressure jar double valve.
2. a kind of high pressure-temperature slag according to claim 1 geomantic omen is cold type slag device altogether; It is characterized in that: said slag discharging device also comprises thin slag collection feed bin; This thin slag is collected feed bin and is comprised first valve, second valve, cyclonic separator and storage bin; Said cyclonic separator is connected with the buffering tank body of said pressure surge tank through pipeline; This pipeline is provided with first valve, and said cyclonic separator is provided with second valve with the extraneous pipeline that is connected, and the bottom of said cyclonic separator is connected with storage bin.
3. a kind of high pressure-temperature slag according to claim 1 geomantic omen is cold type slag device altogether; It is characterized in that: be provided with a pressure equalizing pipe between said high pressure desuperheat jar and the surge tank; This pressure equalizing pipe is provided with the 3rd valve and the 4th valve, carries out the pressure equilibrium adjustment.
4. a kind of high pressure-temperature slag according to claim 1 geomantic omen is cold type slag device altogether, and it is characterized in that: the heat-eliminating medium of said spiral coil cooling tube interchanger is liquid or gas.
5. a kind of high pressure-temperature slag according to claim 1 geomantic omen is cold type slag device altogether, and it is characterized in that: the heat-eliminating medium of said spiral coil cooling tube interchanger is water or air.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012102346518A CN102732325A (en) | 2012-07-06 | 2012-07-06 | High-pressure and high-temperature furnace slag wind and water cooling and deslagging device |
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| CN2012102346518A CN102732325A (en) | 2012-07-06 | 2012-07-06 | High-pressure and high-temperature furnace slag wind and water cooling and deslagging device |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103041748A (en) * | 2012-10-18 | 2013-04-17 | 东南大学 | Device and method for carrying out temperature reduction and pressure reduction on high-temperature and high-pressure solid particles |
| CN103215080A (en) * | 2013-05-10 | 2013-07-24 | 东南大学 | Ash discharge device for high-temperature high-pressure ash particle and ash discharge method thereof |
| CN104386498A (en) * | 2014-09-09 | 2015-03-04 | 东南大学 | High-temperature high-pressure powder cooling pressure relieving discharging device and method |
| CN104650990A (en) * | 2015-03-16 | 2015-05-27 | 上海锅炉厂有限公司 | Slag discharging device for pressurized circulating fluidized bed |
| CN105861075A (en) * | 2016-05-17 | 2016-08-17 | 云南文山铝业有限公司 | Pressure relief device for gasifying pressure container and cinder discharging system of gasifying furnace |
| CN110387268A (en) * | 2018-04-17 | 2019-10-29 | 中国科学院工程热物理研究所 | Slag-draining device and Slagoff method for fluidized-bed gasification furnace |
| CN110387267A (en) * | 2018-04-17 | 2019-10-29 | 中国科学院工程热物理研究所 | Bottom ash treatment device and bottom ash treatment method for fluidized-bed gasification furnace |
| CN114250086A (en) * | 2021-12-21 | 2022-03-29 | 中国科学院工程热物理研究所 | Slag cooling method and device |
| CN114479944A (en) * | 2021-12-21 | 2022-05-13 | 中国科学院工程热物理研究所 | Slag cooling device and fluidized bed gasification furnace |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103041748B (en) * | 2012-10-18 | 2015-03-11 | 东南大学 | Device and method for carrying out temperature reduction and pressure reduction on high-temperature and high-pressure solid particles |
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| CN103215080A (en) * | 2013-05-10 | 2013-07-24 | 东南大学 | Ash discharge device for high-temperature high-pressure ash particle and ash discharge method thereof |
| CN103215080B (en) * | 2013-05-10 | 2014-11-05 | 东南大学 | Ash discharge device for high-temperature high-pressure ash particle and ash discharge method thereof |
| CN104386498B (en) * | 2014-09-09 | 2016-06-29 | 东南大学 | A kind of High Temperature High Pressure powder body cooling pressure relief blow device and method |
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| CN104650990A (en) * | 2015-03-16 | 2015-05-27 | 上海锅炉厂有限公司 | Slag discharging device for pressurized circulating fluidized bed |
| CN105861075A (en) * | 2016-05-17 | 2016-08-17 | 云南文山铝业有限公司 | Pressure relief device for gasifying pressure container and cinder discharging system of gasifying furnace |
| CN110387268A (en) * | 2018-04-17 | 2019-10-29 | 中国科学院工程热物理研究所 | Slag-draining device and Slagoff method for fluidized-bed gasification furnace |
| CN110387267A (en) * | 2018-04-17 | 2019-10-29 | 中国科学院工程热物理研究所 | Bottom ash treatment device and bottom ash treatment method for fluidized-bed gasification furnace |
| CN114250086A (en) * | 2021-12-21 | 2022-03-29 | 中国科学院工程热物理研究所 | Slag cooling method and device |
| CN114479944A (en) * | 2021-12-21 | 2022-05-13 | 中国科学院工程热物理研究所 | Slag cooling device and fluidized bed gasification furnace |
| CN114479944B (en) * | 2021-12-21 | 2023-10-27 | 中国科学院工程热物理研究所 | Slag cooling device and fluidized bed gasifier |
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Application publication date: 20121017 |