CN217558315U - Oil sand dry distillation and thermal recovery integrated device - Google Patents
Oil sand dry distillation and thermal recovery integrated device Download PDFInfo
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- CN217558315U CN217558315U CN202221716286.XU CN202221716286U CN217558315U CN 217558315 U CN217558315 U CN 217558315U CN 202221716286 U CN202221716286 U CN 202221716286U CN 217558315 U CN217558315 U CN 217558315U
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Abstract
The utility model provides an oil sand dry distillation and thermal recovery integrated device, which comprises a feeding system, a drying system, a dry distillation system, a condensing system and a thermal recovery system; the feeding system, the drying system, the dry distillation system, the condensing system and the thermal recovery system are cooperatively used to realize the integrated treatment of oil sand dry distillation and thermal recovery, and steam and flue gas generated by dry distillation are directly injected into a production well through a heat-preservation pipeline to displace oil, so that flue gas, waste water treatment raw materials and treatment cost are saved by dry distillation, carbon emission is reduced, and the pollution of waste gas and waste water to the environment is avoided; and during thermal recovery, steam and flue gas enter different types of thermal recovery wells and then play a role in steam drive and gas drive on an oil sand layer, and oil sand oil is subjected to viscosity reduction, improvement on the fluidity ratio of crude oil and water, an expansion effect, a miscible phase effect, a molecular diffusion effect, reduction in interfacial tension, a dissolved gas drive effect and the like to be extracted from the thermal recovery production wells, so that raw materials of a steam boiler, the steam drive and the flue gas drive are saved, the extraction cost is reduced, and the recovery ratio is improved.
Description
Technical Field
The utility model belongs to the technical field of the oil sand processing apparatus, concretely relates to oil sand dry distillation and thermal recovery integrated device.
Background
Oil sands can be generally classified into shallow oil sands with a burial depth of less than 100m and deep oil sands with a burial depth of more than 100m according to the burial depth. Accordingly, oil sand mining is generally divided into two modes of surface shallow oil sand dry distillation and underground deep oil sand thermal recovery. Typically, both of these mining modes are performed independently in time and space on the same oil sands. However, these two methods have the following disadvantages:
1. in order to reach the environmental protection emission standard, the dry distillation method requires waste gas and wastewater treatment equipment, raw materials and treatment cost, carbon emission exists, and the oil sand dry distillation cost is high;
2. the thermal recovery method needs a boiler for supplying steam, so that the energy consumption is high and the thermal recovery cost is also high.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that lie in to above-mentioned prior art not enough, provide an oil sand dry distillation and thermal recovery integrated device to solve the problem that proposes in the above-mentioned background art.
In order to solve the technical problem, the utility model discloses a technical scheme is: an oil sand dry distillation and thermal recovery integrated device comprises a feeding system, a drying system, a dry distillation system, a condensing system and a thermal recovery system;
the feeding system comprises a feeding machine, a feeding hoister, a crusher and an intermediate bin, wherein the feeding machine is used for loading surface oil sand raw materials, the feeding machine is connected with the feeding hoister and is used for conveying the surface oil sand materials processed by the feeding machine into the crusher, a first conveyor is installed at a discharge port of the crusher and is used for conveying the surface oil sand materials into the intermediate bin, and the surface oil sand materials in the intermediate bin are conveyed into the drying system through a second conveyor;
the drying system comprises a scraper dryer, a spiral conveyor and a spiral feeder, the intermediate bin conveys the surface oil sand material into the scraper dryer, and the dried oil sand passes through an oil sand outlet and then is conveyed to the dry distillation system under the action of the spiral conveyor and the spiral feeder;
the dry distillation system comprises a dry distillation furnace, a spiral slag extractor and a dry distillation elevator, wherein the dry distillation furnace is used for completing dry distillation operation of oil sand, generated high-temperature tailings are sent into the dry distillation elevator through the spiral slag extractor, and a discharge hole of the dry distillation elevator is communicated with a high-temperature tailings inlet of the scraper dryer;
the dry distillation oil gas generated by the dry distillation furnace is sent into a condensing system, the condensing system comprises an oil gas purifying tank, an oil gas condenser, a finished oil temporary storage tank and a water seal tank, and the oil gas purifying tank, the oil gas condenser, the finished oil temporary storage tank and the water seal tank are sequentially communicated;
the steam and the flue gas generated by the gas retort are sent into a thermal recovery system, the thermal recovery system comprises a heat preservation pipeline, a waste heat boiler, a steam injection and suction pump and a production well, the heat preservation pipeline is communicated with the gas retort and the waste heat boiler, the waste heat boiler is communicated with the steam injection and suction pump, and the steam injection and suction pump is communicated with the production well through a switching valve.
Further, the feeding machine is used for crushing the ground oil sand raw material into ground oil sand materials with the particle size of less than 150mm, and the crushing machine is used for crushing the ground oil sand materials into powder with the particle size of less than 5 mm.
Further, the other end that scraper dryer and oil sand export are relative is provided with the waste sand export, waste sand exit intercommunication has the cooling to spray the machine, and the waste sand after the heat transfer is handled through the cooling to spray the machine is transported to the building site and is backfilled.
Further, a negative pressure fan is further installed on a pipeline between the temporary finished oil storage tank and the water seal tank.
Further, the dry distillation system also comprises a combustion chamber, a feed inlet of the combustion chamber is communicated with the water-sealed tank, the non-condensable combustible gas treated by the water-sealed tank is fed into the combustion chamber for combustion, and the high-temperature flue gas generated after combustion is fed into the dry distillation furnace for cyclic treatment.
Further, the thermal recovery system further comprises a high-pressure extension set, the waste heat boiler is communicated with the high-pressure extension set, high-pressure steam generated by the waste heat boiler and a part of 220-degree flue gas are respectively sent into the steam injection suction pump to form steam-flue gas mixed gas, and the other part of 220-degree flue gas and the steam-flue gas mixed gas are sent into the production well through the switching valve.
Compared with the prior art, the utility model has the following advantage:
the utility model realizes the integrated processing of oil sand dry distillation and thermal recovery by the cooperative coordination of the feeding system, the drying system, the dry distillation system, the condensing system and the thermal recovery system, and utilizes the steam and the flue gas generated by the oil sand dry distillation equipment to be directly injected into a production well through a heat-preservation pipeline for displacement of oil, so that the dry distillation does not need the flue gas and the wastewater treatment equipment, thereby saving the flue gas, the wastewater treatment raw materials and the treatment cost, simultaneously reducing the carbon emission and avoiding the environment pollution of waste gas and wastewater; and steam and flue gas enter different types of thermal production wells during thermal production and then have steam drive and gas drive effects on oil sand layers, and the oil sand oil is subjected to viscosity reduction, improvement of the fluidity ratio of crude oil and water, expansion, miscible effect, molecular diffusion, reduction of interfacial tension, dissolved gas drive effect and the like, so that the thermal production is realizedThe production in the production well is adopted, so that steam boiler equipment is not needed, raw materials for thermal recovery and gas drive do not need to be prepared, the raw material cost of the gas drive is saved, and CO is stored and accumulated 2 Finally, the oil sand oil exploitation cost is reduced, and the oil sand oil recovery rate is improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Description of the reference numerals:
11-a feeder; 12-a feed elevator; 13-a pulverizer; 14-a first conveyor; 15-an intermediate bin; 16-a second conveyor; 21-a scraper dryer; 22-a screw conveyor; 23-a screw feeder; 31-retort; 32-a spiral slag extractor; 33-a dry distillation elevator; 41-oil gas purification tank; 42-oil gas condenser; 43-finished oil temporary storage tank; 44-water sealing the tank; 45, a negative pressure fan; 51-heat preservation pipeline; 52-a waste heat boiler; 53-steam ejector pump; 54-a high-pressure fan; 55-production well.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, the utility model provides a technical solution: an oil sand dry distillation and thermal recovery integrated device comprises a feeding system, a drying system, a dry distillation system, a condensing system and a thermal recovery system;
the feeding system comprises a feeding machine 11, a feeding elevator 12, a crusher 13 and an intermediate bin 15, wherein the feeding machine 11 is used for loading surface oil sand raw materials, the feeding machine 11 is connected with the feeding elevator 12, the surface oil sand materials processed by the feeding machine 11 are conveyed into the crusher 13 through the feeding elevator 12, the feeding machine 11 is used for crushing the surface oil sand raw materials into the surface oil sand materials with the particle size smaller than 150mm, and the crusher 13 is used for crushing the surface oil sand materials into powder with the particle size smaller than 5 mm.
A first conveyor 14 is installed at a discharge port of the crusher 13, the surface oil sand material is conveyed to an intermediate bin 15 through the first conveyor 14, and the intermediate bin 15 is used for temporarily storing the surface oil sand material.
The surface oil sand material in the intermediate bin 15 can be conveyed to a drying system through the second conveyor 16, the drying system comprises a scraper dryer 21, a screw conveyor 22 and a screw feeder 23, after the intermediate bin 15 conveys the surface oil sand material into the scraper dryer 21, the dried oil sand is conveyed to a dry distillation system under the action of the screw conveyor 22 and the screw feeder 23 after passing through an oil sand outlet.
The other end that scraper dryer 21 and oil sand export are relative is provided with the waste sand export, waste sand exit intercommunication has cooling to spray machine 26, and the waste sand after the cooling sprays 26 heat transfer processes transports to the building site and backfills.
The dry distillation system comprises a dry distillation furnace 31, a spiral slag extractor 32 and a dry distillation elevator 33, wherein the dry distillation furnace 31 is used for completing dry distillation operation of oil sand, generated high-temperature tailings are conveyed into the dry distillation elevator 33 through the spiral slag extractor 32, and a discharge hole of the dry distillation elevator 33 is communicated with a high-temperature tailings inlet of the scraper dryer 21.
The dry distillation oil gas generated by the dry distillation furnace 31 is sent into a condensing system, the condensing system comprises an oil gas purification tank 41, an oil gas condenser 42, a finished oil temporary storage tank 43 and a water seal tank 44, and the oil gas purification tank 41, the oil gas condenser 42, the finished oil temporary storage tank 43 and the water seal tank 44 are communicated in sequence.
A negative pressure fan 45 is further installed on a pipeline between the temporary finished oil storage tank 43 and the water seal tank 44, the dry distillation system further comprises a combustion chamber 34, a feed inlet of the combustion chamber 34 is communicated with the water seal tank 44, the non-condensable combustible gas processed by the water seal tank 44 is fed into the combustion chamber 34 to be combusted, and the high-temperature flue gas generated by combustion in the combustion chamber 34 through a combustor heats the dry distillation furnace 31.
The steam and the flue gas generated by the gas retort 31 are sent to a thermal recovery system, the thermal recovery system comprises a heat preservation pipeline 51, a waste heat boiler 52, a steam injection and absorption pump 53 and a production well 55, the heat preservation pipeline 51 is communicated with the gas retort 31 and the waste heat boiler 52, the waste heat boiler 52 is communicated with the steam injection and absorption pump 53, and the steam injection and absorption pump 53 is communicated with the production well 55 through a switching valve.
The thermal recovery system further comprises a high-pressure branch machine 54, the waste heat boiler 52 is communicated with the high-pressure branch machine 54, high-pressure steam generated by the waste heat boiler 52 and one part of the 220-degree flue gas are respectively sent into the steam injection and suction pump 53 to form steam-flue gas mixed gas, the other part of the 220-degree flue gas and the steam-flue gas mixed gas are sent into the production well 55 through the switching valve, and CO emission reduction are realized through the viscosity reduction effect, the fluidity ratio of crude oil and water, the expansion effect, the extraction and vaporization of light hydrocarbon in the crude oil, the mixed phase effect and the molecular diffusion effect, the reduction of interfacial tension and the dissolved gas flooding effect 2 The permeability is improved, and the recovery ratio is improved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. An oil sand dry distillation and thermal recovery integrated device is characterized by comprising a feeding system, a drying system, a dry distillation system, a condensing system and a thermal recovery system;
the feeding system comprises a feeding machine (11), a feeding hoister (12), a crusher (13) and an intermediate bin (15), wherein the feeding machine (11) is used for loading surface oil sand raw materials, the feeding machine (11) is connected with the feeding hoister (12), the surface oil sand materials processed by the feeding machine (11) are conveyed into the crusher (13) through the feeding hoister (12), a first conveyor (14) is installed at a discharge port of the crusher (13), the surface oil sand materials are conveyed into the intermediate bin (15) through the first conveyor (14), and the surface oil sand materials in the intermediate bin (15) are conveyed into the drying system through a second conveyor (16);
the drying system comprises a scraper dryer (21), a spiral conveyor (22) and a spiral feeder (23), after the intermediate bin (15) sends the ground surface oil sand material into the scraper dryer (21), the dried oil sand passes through an oil sand outlet and is sent to the dry distillation system under the action of the spiral conveyor (22) and the spiral feeder (23);
the dry distillation system comprises a dry distillation furnace (31), a spiral slag extractor (32) and a dry distillation elevator (33), wherein the dry distillation furnace (31) is used for completing dry distillation operation of oil sand, the generated high-temperature tailings are conveyed into the dry distillation elevator (33) through the spiral slag extractor (32), and a discharge hole of the dry distillation elevator (33) is communicated with a high-temperature tailings inlet of the scraper dryer (21);
the dry distillation oil gas generated by the dry distillation furnace (31) is sent into a condensing system, the condensing system comprises an oil gas purification tank (41), an oil gas condenser (42), a product oil temporary storage tank (43) and a water seal tank (44), and the oil gas purification tank (41), the oil gas condenser (42), the product oil temporary storage tank (43) and the water seal tank (44) are communicated in sequence;
steam and flue gas generated by the gas retort (31) are sent to a thermal recovery system, the thermal recovery system comprises a heat preservation pipeline (51), a waste heat boiler (52), a steam injection and absorption pump (53) and a production well (55), the heat preservation pipeline (51) is communicated with the gas retort (31) and the waste heat boiler (52), the waste heat boiler (52) is communicated with the steam injection and absorption pump (53), and the steam injection and absorption pump (53) is communicated with the production well (55) through a switching valve.
2. The integrated device for dry distillation and thermal recovery of oil sand as claimed in claim 1, wherein a waste sand outlet is arranged at the other end of the scraper dryer (21) opposite to the oil sand outlet, the waste sand outlet is communicated with a cooling sprayer (26), and the waste sand subjected to heat exchange treatment by the cooling sprayer (26) is transported to a construction site for backfilling.
3. The integrated device for dry distillation and thermal recovery of oil sand as claimed in claim 1, wherein a negative pressure fan (45) is further installed on the pipeline between the temporary storage tank (43) for product oil and the water seal tank (44).
4. The integrated device for oil sand dry distillation and thermal production according to claim 3, characterized in that the dry distillation system further comprises a combustion chamber (34), the feed inlet of the combustion chamber (34) is communicated with a water seal tank (44), the non-condensable combustible gas treated by the water seal tank (44) is fed into the combustion chamber (34) for combustion, and the high-temperature flue gas generated after combustion is fed into the dry distillation furnace (31) again for recycling treatment.
5. The oil sand dry distillation and thermal recovery integrated device according to claim 1, wherein the thermal recovery system further comprises a high-pressure extension (54), the waste heat boiler (52) is communicated with the high-pressure extension (54), high-pressure steam generated by the waste heat boiler (52) and a part of the 220-degree flue gas are respectively sent to a steam jet suction pump (53) to form a steam-flue gas mixed gas, and the other part of the 220-degree flue gas and the steam-flue gas mixed gas are sent to a production well (55) through a switching valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221716286.XU CN217558315U (en) | 2022-07-04 | 2022-07-04 | Oil sand dry distillation and thermal recovery integrated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221716286.XU CN217558315U (en) | 2022-07-04 | 2022-07-04 | Oil sand dry distillation and thermal recovery integrated device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217558315U true CN217558315U (en) | 2022-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221716286.XU Active CN217558315U (en) | 2022-07-04 | 2022-07-04 | Oil sand dry distillation and thermal recovery integrated device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217558315U (en) |
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2022
- 2022-07-04 CN CN202221716286.XU patent/CN217558315U/en active Active
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