CN201313882Y - Oil shale gas full-cycling gas retort furnace with daily processing capacity of 300 tons - Google Patents
Oil shale gas full-cycling gas retort furnace with daily processing capacity of 300 tons Download PDFInfo
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- CN201313882Y CN201313882Y CNU2008200158693U CN200820015869U CN201313882Y CN 201313882 Y CN201313882 Y CN 201313882Y CN U2008200158693 U CNU2008200158693 U CN U2008200158693U CN 200820015869 U CN200820015869 U CN 200820015869U CN 201313882 Y CN201313882 Y CN 201313882Y
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Abstract
The utility model relates to a retorting device, and discloses an oil shale gas full-cycling gas retort furnace, which comprises a feeding device, a furnace body and an ash discharging device, wherein the feeding device is arranged on the upper part of the furnace body, and the ash discharging device is arranged on the lower part of the furnace body, and the upper part of the furnace body is provided with a gas collecting umbrella, and the middle part of the furnace body is provided with a gas inlet and an arc abutment, and the furnace body above the arc abutment is provided with a retorting section, and is characterized in that the retorting section is provided with a herringbone plate; the ash discharging device is provided with a water closing structure, and the interior of the retorting furnace is free from an internal combustion device and is free from air, and the heat required for the retorting is completely supplied by the cycled gas. The oil shale gas full-cycling gas retort furnace is suitable for processing 6 to 50 mm oil shake, and has the daily processing capacity of 300 tons, and the oil yield is more than 90 percent.
Description
Technical field
The utility model relates to a kind of distillation apparatus, is a kind of resinous shale gas full circulation carbonization furnace specifically.
Background technology
At present, domestic oil shale retorting oil refining mode, a kind of is to adopt Fushun formula circular furnace, is half internal combustion, half circulation, and a large amount of water vapour and air admission are arranged, and oil-collecting ratio is 60 ~ 65%, and the processing granularity is 12-75mm.Single stove processing power is 100 tons.Another kind is to adopt formula side, Maoming stove, is full internal combustion type, and air admission is arranged, and oil-collecting ratio is about 70%, and the processing granularity is 30-120mm.Single stove processing power is 200 ton per days.Two kinds of type of furnaces all have treatment capacity little, and floor space is big, defectives such as oil-collecting ratio is low, contaminate environment.Formula side, Maoming stove all stops production the eighties in 20th century because of pollution problem.By Qian Jialin, " the additional energy of resinous shale-oil " (Sinopec press in July, 2008 first version) of Yin Liang chief editor describes Fushun formula circular furnace in detail, the structure and the principle of formula side, Maoming stove, and on the 146th page of structure that has disclosed a kind of gas retort, as shown in Figure 2, comprise feeding device 1, body of heater 3 and ash exhauster 10, described feeding device 1 is arranged at the top of body of heater 3, ash exhauster 10 is arranged at the bottom of body of heater 3, the top of described body of heater 3 is provided with collection and confinement of gases umbrella 2, middle portion is provided with inlet mouth 7, arch abutment 6, described arch abutment 6 is divided into top retort section 4 and bottom gasification section 8 with body of heater 3, but this gas retort adopts the method for air admission, the defective of combustion gasses and fixed carbon in the generation gas retort, not only reduce the oil recovery rate, also reduced the calorific value of semicoke simultaneously; And ash exhauster 10 produces methane gas effusion, contaminate environment.
Summary of the invention
For solving the problems of the technologies described above, it is big that the purpose of this utility model provides a kind of day output, the carbonization furnace of oil-collecting ratio height and environmental protection.
Key problem in technology of the present utility model is a burning device in not having in the gas retort, no air admission.Destructive distillation institute heat requirement is all supplied with by circulating mash gas.Resinous shale contacts with hot gas is balanced in gas retort, reaches complete destructive distillation.Adopted following technology to reach the purpose of invention for this reason.The one, gas retort adopts and handles cloth, the gas distribution structure that granulometric facies adapt to, lambdoid homogenizing device has been installed, the equilibrium of material and thermal circulation gas is contacted, the samming destructive distillation, the incomplete two kinds of situations of common coking of existing gas retort and destructive distillation have been avoided, improve pyrogenous thoroughness, also improved the oil recovery rate simultaneously.The 2nd, feed cold circulating mash gas from the gas retort bottom, semicoke after the destructive distillation is cooled to below 250 ℃, reclaimed heat, changed the way of the traditional cooling of bubbling air below semicoke simultaneously, avoided the defective of combustion gasses and fixed carbon in gas retort, not only improve the oil recovery rate, also improved the calorific value of semicoke simultaneously.The 3rd, adopted the water seal scraper-type technology of the discharging of the coke, prevented the methane gas effusion, protected environment.The rotation that has changed the Fushun stove is simultaneously discharged of the coke, and many stove interlocks are unfavorable for the defective that single stove is regulated and control.Concrete scheme is as follows:
A kind of resinous shale gas full circulation carbonization furnace, comprise feeding device, body of heater and ash exhauster, described feeding device is arranged at the top of body of heater, ash exhauster is arranged at the bottom of body of heater, the top of described body of heater is provided with the collection and confinement of gases umbrella, middle portion is provided with inlet mouth, arch abutment, and described arch abutment is provided with retort section with upper furnace body, and described retort section is provided with the herring-bone plate; Described ash exhauster is provided with sealing structure for water; Described ash exhauster is provided with scraper plate.
Technical process of the present utility model is as follows:
Resinous shale after the drying preheating is sent into from gas retort top, is provided with the cloth tracery wall and the gas distribution structure that adapt with the oil shale particle size in the gas retort.700 ℃ thermal circulation gas is sent into the gas retort middle part continuously by equilibrium, contacts with the resinous shale that descends naturally is balanced, and destructive distillation takes place.The oil gas that destructive distillation produces is discharged from the top of stove with circulating mash gas.Cold circulating mash gas enters from the gas retort bottom, and the semicoke that destructive distillation is intact is cooled to 250 ℃, enters the semicoke pond of water seal, is cooled to 80 ℃ and discharges out of the furnace with scraper plate.Cold circulating mash gas is joined in the middle part and the thermal circulation gas of stove after absorbing heat, makes the temperature of retort section keep about 550 ℃.Guarantee the samming destructive distillation, avoid the incomplete phenomenon of gas retort coking or destructive distillation to take place.Destructive distillation oil gas is through cooling tower, after the electric fishing device is received oil, carry out oil and gas and water from, oil enters basin, water enters circulating water pool.A methane gas part recycles as thermal barrier; A part is as process furnace fuel; A part is as fuel gas generation.The theoretical oil-collecting ratio of this utility model can reach more than 90%.
The utility model is compared with the domestic Fushun formula carbonization furnace that generally uses now, has following tangible advantage.The one, treatment capacity is big, and Fushun stove day output is 100 tons, and the day output of this utility model is 300 tons, is 3 times of Fushun stove.Floor space and construction investment have been dwindled greatly; The 2nd, oil recovery rate height, fushun retort oven oil recovery rate is 60-65%, and the utility model is through commerical test, and under the not too perfect situation of testing apparatus, oil-collecting ratio has reached 82%, and by theoretical measuring and calculating, the oil recovery rate should be more than 90%; The 3rd, energy-conservation, owing to adopted gas recycle to extinction technology, whole destructive distillation oil refining institute heat requirement derives from resinous shale itself fully, and owing to no air admission, the gas calorific value improves greatly.Tile this calorific value in Fushun is 1000Kcal/m
3About, gas calorific value of the present utility model is 4000Kcal/m
3About.For favourable condition has been created in the utilization of gas; The 4th, because no combustion reactions in the stove, the fixed carbon in the semicoke obtains intact maintenance, and the semicoke calorific value is improved.The semicoke calorific value of Fushun stove is below 500Kcal/kg, and semicoke calorific value of the present utility model is about 1000Kcal/kg; The 5th, improved working conditions greatly, prolonged the life-span and the stream time of gas retort.Because top temperature is 550 ℃ in the stove, therefore phenomenons such as overheated coking can not take place, no longer include blowing out and play problem generations such as Jiao; The 6th, resource utilization height, Fushun stove can only utilize the above shale of 12mm, and the utility model can utilize the above resinous shale of 6mm, and resource utilization has improved more than 10%; The 7th, good in economic efficiency, per diem handle 2000 tons of destructive distillation oil refining factory measuring and calculating, the oil-collecting ratio that the light raising is 20 percentage points is just increased income 2.4 hundred million yuan every year.
Description of drawings
Fig. 1 is a structure iron of the present utility model;
Fig. 2 is existing gas retort structural representation, wherein: 1-feeding equipment; 2-gas is collected umbrella; 3-body of heater; 4-retort section; 5-mixing section; 6-arch abutment; 7-circulation gas inlet; 8-gasification section; 9-public attention; 10-ash ejector; 11-cupel; 12-water seal.
Embodiment
The scheme that the utility model adopts is that circulating mash gas enters from the stove middle part, and resinous shale drops into from stove, is provided with collapser in the stove, makes the whereabouts of gas flow and material even.Be provided with tracery wall and watercooling jacket below the stove, the semicoke temperature after the destructive distillation is dropped to below 250 ℃.The bottom is provided with water seal and scraper conveyer, and semicoke is discharged out of the furnace.The oil gas that destructive distillation generates discharges out of the furnace through effuser with the top of circulating mash gas at stove, enters oil-water separation system.
As shown in Figure 1, the utility model concrete structure comprises feeding device 1, body of heater 3 and ash exhauster 10, described feeding device 1 is arranged at the top of body of heater 3, ash exhauster 10 is arranged at the bottom of body of heater 3, the top of described body of heater is provided with collection and confinement of gases umbrella 2, middle portion is provided with inlet mouth 7, arch abutment 6, and described arch abutment 6 is provided with retort section 4 with upper furnace body 1, and described retort section is provided with herring-bone plate 20; Described ash exhauster is provided with sealing structure for water 21; Described ash exhauster is provided with scraper plate 22.
The main points of the utility model embodiment: the one, the temperature-stable that guarantees retort section in the stove is about 550 ℃, and is not too high, low only, and too high generation superheating phenomenon low excessively causes destructive distillation incomplete.The ratio of 80 ℃ of cold circulating mash gas that 700 ℃ of thermal circulation gas suitably adjusting that the middle part enters and bottom enter just can realize.The 2nd, guarantee that material can balanced contact with circulating mash gas, could guarantee balanced destructive distillation.Therefore be provided with the herring-bone drapery panel in the stove and regulate the tracery wall of air-flow trend; The 3rd, be provided with water seal and watercooling jacket in lower furnace, effect is when absorbing the semicoke heat, to prevent that methane gas from leaking, the protection environment.
Claims (2)
1. resinous shale gas full circulation carbonization furnace, comprise feeding device, body of heater and ash exhauster, described feeding device is arranged at the top of body of heater, ash exhauster is arranged at the bottom of body of heater, the top of described body of heater is provided with the collection and confinement of gases umbrella, middle portion is provided with inlet mouth, arch abutment, and described arch abutment is provided with retort section with upper furnace body, it is characterized in that: described retort section is provided with the herring-bone plate; Described ash exhauster is provided with sealing structure for water.
2. resinous shale gas full circulation carbonization furnace according to claim 1, it is characterized in that: described ash exhauster is provided with scraper plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200158693U CN201313882Y (en) | 2008-09-16 | 2008-09-16 | Oil shale gas full-cycling gas retort furnace with daily processing capacity of 300 tons |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200158693U CN201313882Y (en) | 2008-09-16 | 2008-09-16 | Oil shale gas full-cycling gas retort furnace with daily processing capacity of 300 tons |
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| Publication Number | Publication Date |
|---|---|
| CN201313882Y true CN201313882Y (en) | 2009-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200158693U Expired - Fee Related CN201313882Y (en) | 2008-09-16 | 2008-09-16 | Oil shale gas full-cycling gas retort furnace with daily processing capacity of 300 tons |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103834420A (en) * | 2012-11-21 | 2014-06-04 | 中国石油化工股份有限公司 | Oil shale dry distillation method |
| CN104531189A (en) * | 2014-12-30 | 2015-04-22 | 汪清县龙腾能源开发有限公司 | Oil shale distillation equipment employing dry coke extract gas heat carrier |
| CN109929579A (en) * | 2019-03-14 | 2019-06-25 | 上海新佑能源科技有限公司 | It is a kind of using gas heat carrier be heat source the vertical gas retort of particulate coal |
-
2008
- 2008-09-16 CN CNU2008200158693U patent/CN201313882Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103834420A (en) * | 2012-11-21 | 2014-06-04 | 中国石油化工股份有限公司 | Oil shale dry distillation method |
| CN104531189A (en) * | 2014-12-30 | 2015-04-22 | 汪清县龙腾能源开发有限公司 | Oil shale distillation equipment employing dry coke extract gas heat carrier |
| CN109929579A (en) * | 2019-03-14 | 2019-06-25 | 上海新佑能源科技有限公司 | It is a kind of using gas heat carrier be heat source the vertical gas retort of particulate coal |
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| 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: 20090923 Termination date: 20120916 |