A kind of efficient internal heat type powder resinous shale oil extraction plant and method thereof
Technical field
The present invention relates to a kind of efficient internal heat type powder resinous shale and carry oily novel process and device, be characterized in designing a kind of particular structure, solve gas not good problem of ventilation property in powder, realized the direct heat exchange of powder and gaseous heat-carrier, increased substantially thermo-efficiency; Adopt multilayer even distributing wind technology, guarantee that oil shale distillation is complete; Total system does not need additional energy source to supply with, and realizes the own self-sustaining of energy.
Background technology
World's oil shale resources are abundant, and its reserves are converted to shale oil up to more than 4,000 hundred million t, verify crude oil reserve more than 1,700 hundred million t for big far beyond the world, are big than world's crude resources 3,000 hundred million t also.In the epoch of current soaring oil prices, the exploitation of many national oil shale reserves and destructive distillation are produced and are become necessary and feasible, and in some only about 20~40 dollars/barrel of its oil prices of country of having ready conditions and producing rock page or leaf oil, so resinous shale can become the additional energy of oil.Owing to have an economic benefit and to the growing demand of liquid fuel, the development of oil shale industry has good prospect.
Resinous shale is that important oil gas substitutes fossil fuel resource, in some areas of China, makes full use of the direct combustion power generation of resinous shale on the one hand, has solved China's partial area electric power and has supplied with problem; Utilize the oil shale distillation technology to produce shale oil on the other hand, also alleviated the China's oil problem of shortage to a certain extent.But domestic powder resinous shale was carried oil and was produced and not form scale as yet present stage, and because indirect heating is adopted in the heating of powder resinous shale more, therefore in actual production, there are defectives such as heat transfer efficiency is low, oil yield is not high, treatment capacity is less, seriously restricted resinous shale and carried oily industrial expansion.Therefore inventing a kind of powder of internal heat type efficiently resinous shale oil extraction plant has huge economic potential.
Summary of the invention
In order to solve the problems of the technologies described above, the purpose of this invention is to provide a kind of simple in structurely, safe and reliable, heat exchange is abundant, and the thermo-efficiency height improves dry distillation efficiency, and the hot type powder resinous shale of the sensible heat of refiltered oil shale semicockes is carried the devices and methods therefor of oil.
Technical scheme of the present invention is: plant efficient internal heat type powder resinous shale oil extraction plant, this device is made up of even gas distribution device, gas retort, whirlwind chuck, water-cooled electric coke catcher, storage tank, burner and honeycomb metal interchanger; Described gas retort comprises dryer section, retort section and cooling section; The destructive distillation gas outlet of the retort section upper end of described gas retort connects by pipeline and described whirlwind chuck one end pipe, and cooling section is by pipeline and described honeycomb metal heat exchange
Device connects; The other end of described whirlwind chuck connects by pipeline and described water-cooled electric coke catcher pipe, described water-cooled electric coke catcher by pipeline with connect respectively at the cooling section pipe of described storage tank, burner and described gas retort, described burner and honeycomb metal interchanger join, and described honeycomb metal interchanger is connected with dryer section with the retort section of described gas retort respectively by pipeline; Wherein, described even gas distribution device is welded on the sidewall of retort section of described gas retort, and an end is provided with inlet mouth and described gas retort UNICOM, the other end sealing; The both sides of described even gas distribution device are welded with metal column and are used to prevent stream in the powder; Connect with steelframe between the described metal column, be used to guarantee the intensity of described metal column.
Another object of the present invention provides the method for above-mentioned efficient powder resinous shale oil extraction plant,, specifically may further comprise the steps:
At first, the raw material powder resinous shale enters in the gas retort from feeding unit, through after the dryer section, enter in the retort section, temperature be 550 ~ 650 ℃ the inlet mouth of hot gas gas by the even gas distribution device enter in the retort section evenly to around diffusion, carry out direct heat exchange with the raw material powder resinous shale that falls, the raw material powder resinous shale is heated to 450 ~ 500 ℃, generation oil gas is decomposed in destructive distillation;
Then, the oil gas that decomposition is come out enters the water-cooled electric coke catcher from the outlet of destructive distillation gas through the whirlwind chuck and carries out condensation, is cooled to liquid shale oil and enters storage tank; Not by destructive distillation resinous shale formation completely semicoke, enter under the self gravitation effect in the cooling section of gas retort bottom in the gas retort, cooled shale semicockes are discharged from the gas retort bottom;
At last, a gas gas part that is not condensed feeds burner and burns, and another part enters the sensible heat of the cooling section recovery semicoke of gas retort, enters in the honeycomb metal interchanger; Through the hot flue gas of burner combustion and the gas gas heat exchange in the honeycomb metal interchanger, dryer section and retort section that heated gas gas feeds gas retort realize circulation with this.
The invention has the beneficial effects as follows: owing to adopt technique scheme, the major advantage of technology of the present invention have following some:
1. powder resinous shale and coal mine gas direct heat exchange, heat exchange is abundant, the thermo-efficiency height.
2. adopt the even gas distribution technology of multilayer, realize the constant temperature destructive distillation on the short transverse, the constant temperature destructive distillation can effectively reduce resinous shale at residing time in furnace, improves dry distillation efficiency; Arranging multiplayer circulation uniform device feeds in the stove destructive distillation gas uniformly on short transverse on short transverse.
3. the sensible heat of refiltered oil shale semicockes, total system does not need extra energy resource supply, can realize the self-sufficient of energy.
4. simple in structure, safe and reliable, can steady running.
Description of drawings
Fig. 1 carries the structural representation of the interior retort section of gas retort of oily device for the efficient internal heat type powder of the present invention resinous shale.
Fig. 2 is the even gas distribution device structural representation of retort section of the present invention.
The efficient internal heat type powder of Fig. 3 the present invention resinous shale is carried the device one-piece construction synoptic diagram of oil.
Among the figure:
| 1. even gas distribution device | 7. belong to the honeycomb interchanger |
| 2. gas retort | 8. metal column |
| 3. whirlwind chuck | 9. steelframe |
| 4. water-cooled electric coke catcher | 10. inlet mouth |
| 5. storage tank | 11. destructive distillation gas outlet |
| 6. burner | ? |
Embodiment:
Below in conjunction with the accompanying drawing specific embodiment technical scheme of the present invention is described further.
As shown in Figure 1-Figure 3, a kind of efficient internal heat type powder resinous shale is carried the device of oil, and this device is made up of even gas distribution device 1, gas retort 2, whirlwind chuck 3, water-cooled electric coke catcher 4, storage tank 5, burner 6 and honeycomb metal interchanger 7;
Wherein, gas retort 2 comprises dryer section, retort section and cooling section; Even gas distribution device 1 is welded on the sidewall of retort section of gas retort 2, and an end is provided with inlet mouth 10 and described gas retort 1 UNICOM, the other end sealing; Both sides are welded with and are used to prevent stream metal column 8 in the powder, in order to increase the intensity between the metal column 8, will be between the metal column 8 connect with steelframe 9, the destructive distillation gas outlet of retort section upper end 11 connects by pipeline and whirlwind chuck 3 one end pipes, and cooling section is connected with honeycomb metal interchanger 7 by pipeline; The other end of whirlwind chuck 3 connects by pipeline and described water-cooled electric coke catcher 4 pipes, described water-cooled electric coke catcher 4 by pipeline with connect respectively at the cooling section pipe of described storage tank 5, burner 6 and furnace 2, burner 6 and honeycomb metal interchanger 7 join, and belong to honeycomb interchanger 7 and are connected with dryer section with the retort section of described gas retort 2 respectively by pipeline;
Above-mentioned efficient powder resinous shale is put forward the method for the device of oil, specifically may further comprise the steps:
At first, the raw material powder resinous shale enters in the gas retort 2 from feeding unit, through after the dryer section, enters in the retort section, and temperature is that 550 ~ 650 ℃ the inlet mouth 10 of hot gas gas by even gas distribution device 1 enters dried
Evenly to diffusion all around, carry out direct heat exchange with the raw material powder resinous shale that falls in the section of heating up in a steamer, the raw material powder resinous shale is heated to 450 ~ 500 ℃, generation oil gas is decomposed in destructive distillation;
Then, the oil gas that decomposition is come out enters water-cooled electric coke catcher 4 from destructive distillation gas outlet 11 through whirlwind chucks 3 and carries out condensation, is cooled to liquid shale oil and enters storage tank 5; Not by destructive distillation resinous shale formation completely semicoke, enter under the self gravitation effect in the cooling section of gas retort 2 bottoms in the gas retort 2, cooled shale semicockes are discharged from gas retort 2 bottoms;
At last, a gas gas part that is not condensed feeds burner 4 and burns, and another part enters the sensible heat of the cooling section recovery semicoke of gas retort 2, enters in the honeycomb metal interchanger 7; Dryer section and retort section that gas gas heat exchange in hot flue gas of burner 6 incendiary and honeycomb metal interchanger, heated gas gas feed gas retort 2 realize circulation with this.
Embodiment 1
The raw material powder resinous shale is entered in the gas retort from feeding unit, through after the dryer section with the constant temperature retort section in 550 ℃ hot gas gas carry out direct heat exchange, the raw material powder resinous shale is heated to 450 ℃, destructive distillation is decomposed and is produced oil gas; Decompose the oil gas that comes out and enter the condenser system condensation, be cooled to liquid shale oil and enter storage tank from the body of heater top through oil gas collecting device.By destructive distillation resinous shale formation completely semicoke, enter the cooling section of gas retort bottom under the self gravitation effect in the gas retort, cooled shale semicockes are discharged from the bottom.A gas gas part that is not condensed feeds burner combustion, and another part enters the sensible heat of the cooling section recovery semicoke of gas retort, enters efficient metal honeycomb interchanger subsequently; Through the hot flue gas and the gas heat exchange that feeds efficient metal honeycomb interchanger of burner combustion, heated gas feeds the gas retort retort section and realizes circulation with this.
Embodiment 2:
The raw material powder resinous shale is entered in the gas retort from feeding unit, through after the dryer section with the constant temperature retort section in 600 ℃ hot gas gas carry out direct heat exchange, the raw material powder resinous shale is heated to 475 ℃, destructive distillation is decomposed and is produced oil gas; Decompose the oil gas that comes out and enter the condenser system condensation, be cooled to liquid shale oil and enter storage tank from the body of heater top through oil gas collecting device.By destructive distillation resinous shale formation completely semicoke, enter the cooling section of gas retort bottom under the self gravitation effect in the gas retort, cooled shale semicockes are discharged from the bottom.A gas gas part that is not condensed feeds burner combustion, and another part enters the sensible heat of the cooling section recovery semicoke of gas retort, enters the honeycomb metal interchanger subsequently; Through the hot flue gas and the gas heat exchange that feeds the honeycomb metal interchanger of burner combustion, heated gas feeds the gas retort retort section and realizes circulation with this.
Embodiment 3
The raw material powder resinous shale is entered in the gas retort from feeding unit, through after the dryer section with the constant temperature retort section in 650 ℃ hot gas gas carry out direct heat exchange, the raw material powder resinous shale is heated to 500 ℃, destructive distillation is decomposed and is produced oil gas; Decompose the oil gas that comes out and enter the condenser system condensation, be cooled to liquid shale oil and enter storage tank from the body of heater top through oil gas collecting device.By destructive distillation resinous shale formation completely semicoke, enter the cooling section of gas retort bottom under the self gravitation effect in the gas retort, cooled shale semicockes are discharged from the bottom.A gas gas part that is not condensed feeds burner combustion, and another part enters the sensible heat of the cooling section recovery semicoke of gas retort, enters the honeycomb metal interchanger subsequently; Through the hot flue gas and the gas heat exchange that feeds the honeycomb metal interchanger of burner combustion, heated gas feeds the gas retort retort section and realizes circulation with this.