CN104498074B - A kind of heat-pipe heating type oil shale distillation coal mine gas technique - Google Patents
A kind of heat-pipe heating type oil shale distillation coal mine gas technique Download PDFInfo
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- CN104498074B CN104498074B CN201410843181.4A CN201410843181A CN104498074B CN 104498074 B CN104498074 B CN 104498074B CN 201410843181 A CN201410843181 A CN 201410843181A CN 104498074 B CN104498074 B CN 104498074B
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/06—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of oil shale and/or or bituminous rocks
Abstract
The present invention is a kind of heat-pipe heating type oil shale distillation coal mine gas technique, be characterized in, have in comprising: circulating mash gas gas lift temperature flow process, cooling high-temperature fume flow process, the process of carbon deposit and the process of dust stratification, heat treated high temperature circulation gas, by the first circulating mash gas gas lift temperature flow process alternately switched or the second circulating mash gas gas lift temperature flow process, is sent into gas retort by circulating mash gas gas lift temperature flow process; The high-temperature flue gas of roasting kiln, by the first cooling high-temperature fume flow process alternately switched or the second cooling high-temperature fume flow process, is entered fume exhaust system through the flue gas of cooling process by cooling high-temperature fume flow process; And alternately can switch carbon deposit and dust stratification process are carried out to high-temperature heat pipe well heater, there is technical process reasonable, convenient operation, failure rate is low, oil shale distillation efficiency advantages of higher.
Description
Technical field
The present invention relates to resinous shale gaseous heat-carrier destructive distillation oil refining technical field, is a kind of heat-pipe heating type oil shale distillation coal mine gas
Technique.
Background technology
Resinous shale is a kind of sedimentogeneous rock, has the skeleton of inorganic mineral, and containing SOLID ORGANIC matter, is mainly petrologen and a small amount of bituminous matter.Resinous shale can obtain shale oil through low-temperature pyrolysis (about 550 DEG C), and shale oils like crude oil, can make gasoline, diesel oil or as oil fuel.Therefore can petroleum replacing, become the strong of petroleum resources and supplement.
Carbonization furnace type is a lot, by the difference of heating carrier used, can be divided into gaseous heat-carrier gas retort and the large class of solid heat carrier retort two.The mainly gaseous heat-carrier gas retort that Present Domestic puts into operation, except the high temperature generation gas that a kind of gaseous heat-carrier of gas gas retort generates except reacting from the furnace bottom carbon sent in air, steam and shale semicockes, also need a part of oil shale distillation coal mine gas as a supplement; The thermal barrier of another kind of thermal barrier gas retort is for being made up of cycling hot gas and the cold gas of circulation, and a part of gas is sent into gas combustion stove as fuel gas and carried out burning and carry out secondary heating to reach corresponding temperature requirement to cycling hot gas.These two kinds of techniques are all heat dry rectificating oil shale using circulating mash gas (about 700 DEG C) as thermal barrier, and circulating mash gas is delivered in gas retort after heating in gas heating furnace.Current, circulating mash gas process furnace substantially all adopts tubular heat exchanger, and destructive distillation circulating mash gas passes through in Tube Sheet of Heat Exchanger, and pipe passes through burning semicoke outward or tail gas release of heat is to heat destructive distillation circulating mash gas.
The maximum problem of current this tubular oven is carbon deposit.Comprise multiple organic gas in gas, organic gas is at high temperature by free chain reaction green coke, and comprise in the material of process furnace pipeline can the transition type metal of catalysis organic gas cracking.So, after operation for some time, in the pipeline of process furnace, there is the phenomenon of carbon distribution.Carbon distribution is not independently carbon atom, but is condensed by some carbon atoms and form.When it is attached to metallic conduit wall, not only can blocking pipe, affect the heat transfer efficiency of boiler tube, wall rigidity also can be caused to decline, affect the work-ing life of device.
Summary of the invention
The object of the invention is the carbon deposit blocking pipe problem existed for existing circulating mash gas process furnace, propose one and heat pipe heat exchanging technology is used for circulating mash gas heating system, improve heating system thermo-efficiency, and by two groups of high temperature heater (HTH) switchover operations, regularly can carry out carbon deposit process, thus avoid the heat-pipe heating type oil shale distillation coal mine gas technique of carbon deposit.
The object of the invention is to be realized by following technical scheme: a kind of heat-pipe heating type oil shale distillation coal mine gas technique, it is characterized in that, it comprises following content:
1) circulating mash gas gas lift temperature flow process:
Come from the cold cycle coal mine gas of 25 ~ 50 DEG C of condensation refiltered oil system, enter in Cryo Heat Tube well heater from the SAPMAC method coal mine gas entrance of Cryo Heat Tube well heater, the heat pipe heat with some heat exchanger fins of SAPMAC method coal mine gas and Cryo Heat Tube well heater carries out heat exchange, coal mine gas is heated to 350 ~ 400 DEG C, then exported under the switching of circulating mash gas inlet mouth switching valve by the SAPMAC method coal mine gas of Cryo Heat Tube well heater, enter the first circulating mash gas gas lift temperature flow process or enter the second circulating mash gas gas lift temperature flow process, first circulating mash gas gas lift temperature flow process is: enter in the first high-temperature heat pipe well heater from the circulating mash gas gas import of the first high-temperature heat pipe well heater, the heat pipe heat with some heat exchanger fins of coal mine gas and the first high-temperature heat pipe well heater carries out heat exchange, be heated to the circulating mash gas gas outlet inflow transport pipe of 700 DEG C of coal mine gas through the first high-temperature heat pipe well heater, gas retort is sent into through circulating mash gas air outlet switching valve, second circulating mash gas gas lift temperature flow process is: enter in the second high-temperature heat pipe well heater from the circulating mash gas gas import of the second high-temperature heat pipe well heater, the heat pipe heat with some heat exchanger fins of coal mine gas and the second high-temperature heat pipe well heater carries out heat exchange, be heated to the circulating mash gas gas outlet inflow transport pipe of 700 DEG C of coal mine gas through the second high-temperature heat pipe well heater, send into gas retort through circulating mash gas air outlet switching valve, when the carbon deposit of the first high-temperature heat pipe well heater or the second high-temperature heat pipe well heater reaches set amount, the operation of alternate selection first circulating mash gas gas lift temperature flow process or the second circulating mash gas gas lift temperature flow process,
2) cooling high-temperature fume flow process:
Come from the high-temperature flue gas of 800 ~ 850 DEG C of roasting kiln, under the switching of roasting kiln exhanst gas outlet switching valve, enter the first cooling high-temperature fume flow process or enter the second cooling high-temperature fume flow process, first cooling high-temperature fume flow process is: enter in the first high-temperature heat pipe well heater from the gas approach of the first high-temperature heat pipe well heater, the heat pipe heat with some heat exchanger fins of high-temperature flue gas and the first high-temperature heat pipe well heater carries out heat exchange, high-temperature flue gas is through the exhanst gas outlet of the first high-temperature heat pipe well heater, exhanst gas outlet switching valve, the smoke inlet of Cryo Heat Tube well heater is sent in Cryo Heat Tube well heater, high-temperature flue gas proceeds heat exchange by the heat pipe heat with some heat exchanger fins of Cryo Heat Tube well heater, the flue gas that temperature is 150 ~ 200 DEG C enters fume exhaust system from the exhanst gas outlet of Cryo Heat Tube well heater, second cooling high-temperature fume flow process is: enter in the second high-temperature heat pipe well heater from the gas approach of the second high-temperature heat pipe well heater, the heat pipe heat with some heat exchanger fins of high-temperature flue gas and the second high-temperature heat pipe well heater carries out heat exchange, high-temperature flue gas is through the exhanst gas outlet of the second high-temperature heat pipe well heater, exhanst gas outlet switching valve, the smoke inlet of Cryo Heat Tube well heater is sent in Cryo Heat Tube well heater, high-temperature flue gas proceeds heat exchange by the heat pipe heat with some heat exchanger fins of Cryo Heat Tube well heater, the flue gas that temperature is 150 ~ 200 DEG C enters fume exhaust system from the exhanst gas outlet of Cryo Heat Tube well heater, when the carbon deposit of the first high-temperature heat pipe well heater or the second high-temperature heat pipe well heater reaches set amount, the operation of alternate selection first cooling high-temperature fume flow process or the second cooling high-temperature fume flow process,
3) process of carbon deposit:
When first high-temperature heat pipe well heater carbon deposit reaches set amount, stop the first cooling high-temperature fume flow process, run the second cooling high-temperature fume flow process, first high-temperature heat pipe well heater is made charcoal, by the spout of making charcoal of the first high-temperature heat pipe well heater, water vapour or combustion gas are sent into the first high-temperature heat pipe well heater, after burning and gasification reaction, made charcoal by the first high-temperature heat pipe well heater again and purge import to the first high-temperature heat pipe well heater and make charcoal and purge outlet and purge, make charcoal and after terminating, close the spout of making charcoal of the first high-temperature heat pipe well heater, first high-temperature heat pipe well heater is made charcoal and is purged import and the first high-temperature heat pipe well heater and make charcoal and purge outlet, when second high-temperature heat pipe well heater carbon deposit reaches set amount, stop the second cooling high-temperature fume flow process, run the first cooling high-temperature fume flow process, second high-temperature heat pipe well heater is made charcoal, by the spout of making charcoal of the second high-temperature heat pipe well heater, water vapour or combustion gas are sent into the second high-temperature heat pipe well heater, after burning and gasification reaction, made charcoal by the second high-temperature heat pipe well heater again and purge import to the second high-temperature heat pipe well heater and make charcoal and purge outlet and purge, make charcoal and after terminating, close the spout of making charcoal of the second high-temperature heat pipe well heater, second high-temperature heat pipe well heater is made charcoal and is purged import and the second high-temperature heat pipe well heater and make charcoal and purge outlet,
4) process of dust stratification:
While carbon deposit process, carry out the process of dust stratification, while the second heat pipe high temperature heater (HTH) is made charcoal, blow grey air inlet valve from the second high-temperature heat pipe well heater and pass into high-pressure air, now, open the second high-temperature heat pipe well heater wind ash outlet valve, the ash purged and grey wind mixture enter separator through the second high-temperature heat pipe well heater wind ash outlet valve and carry out ash, gas separation, after purging terminates, close the second high-temperature heat pipe well heater and blow grey air inlet valve and the second high-temperature heat pipe well heater wind ash outlet valve; When making charcoal simultaneously to the first heat pipe heater, blow grey air inlet valve from the first high-temperature heat pipe well heater and pass into high-pressure air, now, open the first high-temperature heat pipe well heater wind ash outlet valve, the ash purged and grey wind mixture enter separator through the first high-temperature heat pipe well heater wind ash outlet valve and carry out ash, gas separation, after purging terminates, close the first high-temperature heat pipe well heater and blow grey air inlet valve and the first high-temperature heat pipe well heater wind ash outlet valve.
The advantage applies of a kind of heat-pipe heating type oil shale distillation of the present invention coal mine gas technique exists:
1. adopt heat pipe heater, solve the problem that current heat regenerator thermo-efficiency is low;
2. on heat pipe heater, be provided with ash blowing mouth, carry out selective sootblowing, with the heating efficiency preventing dust stratification from affecting heat pipe heater;
3. be provided with two groups of heat pipe heaters and replace switchover operation, regularly carry out process of making charcoal, thus after avoiding the plugging of heat pipe heater carbon deposit, be difficult to the problem of process;
4. its technical process is reasonable, and convenient operation, failure rate is low, oil shale distillation efficiency is high.
Accompanying drawing explanation
Fig. 1 is a kind of heat-pipe heating type oil shale distillation coal mine gas process flow sheet.
In figure: the SAPMAC method coal mine gas entrance of 1 Cryo Heat Tube well heater, the exhanst gas outlet of 2 Cryo Heat Tube well heaters, the SAPMAC method coal mine gas outlet of 3 Cryo Heat Tube well heaters, the smoke inlet of 4 Cryo Heat Tube well heaters, 5 circulating mash gas inlet mouth switching valves, 6 exhanst gas outlet switching valves, the circulating mash gas gas import of 7 second high-temperature heat pipe well heaters, 8 is the exhanst gas outlet of the second high-temperature heat pipe well heater, the circulating mash gas gas import of 9 first high-temperature heat pipe well heaters, the exhanst gas outlet of 10 first high-temperature heat pipe well heaters, the circulating mash gas gas outlet of 11 second high-temperature heat pipe well heaters, the gas approach of 12 second high-temperature heat pipe well heaters, the circulating mash gas outlet of 13 first high-temperature heat pipe well heaters, the gas approach of 14 first high-temperature heat pipe well heaters, 15 circulating mash gas air outlet switching valves, 16 roasting kiln exhanst gas outlet switching valves, 17 second high-temperature heat pipe well heaters blow grey air inlet valve, the spout of making charcoal of 18 second high-temperature heat pipe well heaters, 19 second high-temperature heat pipe well heater wind ash outlet valves, the spout of making charcoal of 20 first high-temperature heat pipe well heaters, 21 first high-temperature heat pipe well heaters blow grey air inlet valve, 22 first high-temperature heat pipe well heater wind ash outlet valves, 23 second high-temperature heat pipe well heaters are made charcoal purging import, 24 first high-temperature heat pipe well heaters are made charcoal purging import, 25 first high-temperature heat pipe well heaters are made charcoal and are purged outlet, 26 second high-temperature heat pipe well heaters are made charcoal and are purged outlet.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
With reference to Fig. 1, a kind of heat-pipe heating type oil shale distillation coal mine gas technique of the present invention, has in comprising:
1) circulating mash gas gas lift temperature flow process:
Come from the cold cycle coal mine gas of 25 ~ 50 DEG C of condensation refiltered oil system, enter in Cryo Heat Tube well heater from the SAPMAC method coal mine gas entrance 1 of Cryo Heat Tube well heater, the heat pipe heat with some heat exchanger fins of SAPMAC method coal mine gas and Cryo Heat Tube well heater carries out heat exchange, coal mine gas is heated to 350 ~ 400 DEG C, then 3 are exported under the switching of circulating mash gas inlet mouth switching valve 5 by the SAPMAC method coal mine gas of Cryo Heat Tube well heater, enter the first circulating mash gas gas lift temperature flow process or enter the second circulating mash gas gas lift temperature flow process, first circulating mash gas gas lift temperature flow process is: enter in the first high-temperature heat pipe well heater from the circulating mash gas gas import 9 of the first high-temperature heat pipe well heater, the heat pipe heat with some heat exchanger fins of coal mine gas and the first high-temperature heat pipe well heater carries out heat exchange, be heated to the circulating mash gas gas outlet 13 inflow transport pipe of 700 DEG C of coal mine gas through the first high-temperature heat pipe well heater, gas retort is sent into through circulating mash gas air outlet switching valve 15, second circulating mash gas gas lift temperature flow process is: enter in the second high-temperature heat pipe well heater from the circulating mash gas gas import 7 of the second high-temperature heat pipe well heater, the heat pipe heat with some heat exchanger fins of coal mine gas and the second high-temperature heat pipe well heater carries out heat exchange, be heated to the circulating mash gas gas outlet 11 inflow transport pipe of 700 DEG C of coal mine gas through the second high-temperature heat pipe well heater, send into gas retort through circulating mash gas air outlet switching valve 15, when the carbon deposit of the first high-temperature heat pipe well heater or the second high-temperature heat pipe well heater reaches set amount, the operation of alternate selection first circulating mash gas gas lift temperature flow process or the second circulating mash gas gas lift temperature flow process,
2) cooling high-temperature fume flow process:
Come from the high-temperature flue gas of 800 ~ 850 DEG C of roasting kiln, under the switching of roasting kiln exhanst gas outlet switching valve 16, enter the first cooling high-temperature fume flow process or enter the second cooling high-temperature fume flow process, first cooling high-temperature fume flow process is: enter in the first high-temperature heat pipe well heater from the gas approach 14 of the first high-temperature heat pipe well heater, the heat pipe heat with some heat exchanger fins of high-temperature flue gas and the first high-temperature heat pipe well heater carries out heat exchange, high-temperature flue gas is through the exhanst gas outlet 10 of the first high-temperature heat pipe well heater, exhanst gas outlet switching valve 6, the smoke inlet 4 of Cryo Heat Tube well heater is sent in Cryo Heat Tube well heater, high-temperature flue gas proceeds heat exchange by the heat pipe heat with some heat exchanger fins of Cryo Heat Tube well heater, the flue gas that temperature is 150 ~ 200 DEG C enters fume exhaust system from the exhanst gas outlet 2 of Cryo Heat Tube well heater, second cooling high-temperature fume flow process is: enter in the second high-temperature heat pipe well heater from the gas approach 12 of the second high-temperature heat pipe well heater, the heat pipe heat with some heat exchanger fins of high-temperature flue gas and the second high-temperature heat pipe well heater carries out heat exchange, high-temperature flue gas is through the exhanst gas outlet 8 of the second high-temperature heat pipe well heater, exhanst gas outlet switching valve 6, the smoke inlet 4 of Cryo Heat Tube well heater is sent in Cryo Heat Tube well heater, high-temperature flue gas proceeds heat exchange by the heat pipe heat with some heat exchanger fins of Cryo Heat Tube well heater, the flue gas that temperature is 150 ~ 200 DEG C enters fume exhaust system from the exhanst gas outlet 2 of Cryo Heat Tube well heater,
When the carbon deposit of the first high-temperature heat pipe well heater or the second high-temperature heat pipe well heater reaches set amount, the operation of alternate selection first cooling high-temperature fume flow process or the second cooling high-temperature fume flow process;
3) process of carbon deposit:
When first high-temperature heat pipe well heater carbon deposit reaches set amount, stop the first cooling high-temperature fume flow process, run the second cooling high-temperature fume flow process, first high-temperature heat pipe well heater is made charcoal, by the spout 20 of making charcoal of the first high-temperature heat pipe well heater, water vapour or combustion gas are sent into the first high-temperature heat pipe well heater, after burning and gasification reaction, made charcoal by the first high-temperature heat pipe well heater again and purge import 24 to the first high-temperature heat pipe well heater and make charcoal and purge outlet 25 and purge, make charcoal and after terminating, close the spout 20 of making charcoal of the first high-temperature heat pipe well heater, first high-temperature heat pipe well heater is made charcoal and is purged import 24 and the first high-temperature heat pipe well heater and make charcoal and purge outlet 25, when second high-temperature heat pipe well heater carbon deposit reaches set amount, stop the second cooling high-temperature fume flow process, run the first cooling high-temperature fume flow process, second high-temperature heat pipe well heater is made charcoal, by the spout 18 of making charcoal of the second high-temperature heat pipe well heater, water vapour or combustion gas are sent into the second high-temperature heat pipe well heater, after burning and gasification reaction, made charcoal by the second high-temperature heat pipe well heater again and purge import 23 to the second high-temperature heat pipe well heater and make charcoal and purge outlet 26 and purge, make charcoal and after terminating, close the spout 18 of making charcoal of the second high-temperature heat pipe well heater, second high-temperature heat pipe well heater is made charcoal and is purged import 23 and the second high-temperature heat pipe well heater and make charcoal and purge outlet 26,
4) process of dust stratification:
While carbon deposit process, carry out the process of dust stratification, while the second heat pipe high temperature heater (HTH) is made charcoal, blow grey air inlet valve 17 from the second high-temperature heat pipe well heater and pass into high-pressure air, now, open the second high-temperature heat pipe well heater wind ash outlet valve 19, the ash purged and grey wind mixture enter separator through the second high-temperature heat pipe well heater wind ash outlet valve 19 and carry out ash, gas separation, after purging terminates, close the second high-temperature heat pipe well heater and blow grey air inlet valve 17 and the second high-temperature heat pipe well heater wind ash outlet valve 19; When making charcoal simultaneously to the first heat pipe heater, blow grey air inlet valve 21 from the first high-temperature heat pipe well heater and pass into high-pressure air, now, open the first high-temperature heat pipe well heater wind ash outlet valve 22, the ash purged and grey wind mixture enter separator through the first high-temperature heat pipe well heater wind ash outlet valve 22 and carry out ash, gas separation, after purging terminates, close the first high-temperature heat pipe well heater and blow grey air inlet valve 21 and the first high-temperature heat pipe well heater wind ash outlet valve 22.
Claims (1)
1. the technique utilizing heat pipes heat technology to heat oil shale distillation coal mine gas, is characterized in that, it comprises following content:
1) circulating mash gas gas lift temperature flow process:
Come from the cold cycle coal mine gas of 25 ~ 50 DEG C of condensation refiltered oil system, enter in Cryo Heat Tube well heater from the SAPMAC method coal mine gas entrance of Cryo Heat Tube well heater, the heat pipe heat with some heat exchanger fins of SAPMAC method coal mine gas and Cryo Heat Tube well heater carries out heat exchange, coal mine gas is heated to 350 ~ 400 DEG C, then exported under the switching of circulating mash gas inlet mouth switching valve by the SAPMAC method coal mine gas of Cryo Heat Tube well heater, enter the first circulating mash gas gas lift temperature flow process or enter the second circulating mash gas gas lift temperature flow process, first circulating mash gas gas lift temperature flow process is: enter in the first high-temperature heat pipe well heater from the circulating mash gas gas import of the first high-temperature heat pipe well heater, the heat pipe heat with some heat exchanger fins of coal mine gas and the first high-temperature heat pipe well heater carries out heat exchange, be heated to the circulating mash gas gas outlet inflow transport pipe of 700 DEG C of coal mine gas through the first high-temperature heat pipe well heater, gas retort is sent into through circulating mash gas air outlet switching valve, second circulating mash gas gas lift temperature flow process is: enter in the second high-temperature heat pipe well heater from the circulating mash gas gas import of the second high-temperature heat pipe well heater, the heat pipe heat with some heat exchanger fins of coal mine gas and the second high-temperature heat pipe well heater carries out heat exchange, be heated to the circulating mash gas gas outlet inflow transport pipe of 700 DEG C of coal mine gas through the second high-temperature heat pipe well heater, send into gas retort through circulating mash gas air outlet switching valve, when first high-temperature heat pipe well heater carbon deposit reaches set amount, stop the first cooling high-temperature fume flow process, run the second cooling high-temperature fume flow process, when second high-temperature heat pipe well heater carbon deposit reaches set amount, stop the second cooling high-temperature fume flow process, run the first cooling high-temperature fume flow process,
2) cooling high-temperature fume flow process:
Come from the high-temperature flue gas of 800 ~ 850 DEG C of roasting kiln, under the switching of roasting kiln exhanst gas outlet switching valve, enter the first cooling high-temperature fume flow process or enter the second cooling high-temperature fume flow process, first cooling high-temperature fume flow process is: enter in the first high-temperature heat pipe well heater from the gas approach of the first high-temperature heat pipe well heater, the heat pipe heat with some heat exchanger fins of high-temperature flue gas and the first high-temperature heat pipe well heater carries out heat exchange, high-temperature flue gas is through the exhanst gas outlet of the first high-temperature heat pipe well heater, exhanst gas outlet switching valve, the smoke inlet of Cryo Heat Tube well heater is sent in Cryo Heat Tube well heater, high-temperature flue gas proceeds heat exchange by the heat pipe heat with some heat exchanger fins of Cryo Heat Tube well heater, the flue gas that temperature is 150 ~ 200 DEG C enters fume exhaust system from the exhanst gas outlet of Cryo Heat Tube well heater, second cooling high-temperature fume flow process is: enter in the second high-temperature heat pipe well heater from the gas approach of the second high-temperature heat pipe well heater, the heat pipe heat with some heat exchanger fins of high-temperature flue gas and the second high-temperature heat pipe well heater carries out heat exchange, high-temperature flue gas is through the exhanst gas outlet of the second high-temperature heat pipe well heater, exhanst gas outlet switching valve, the smoke inlet of Cryo Heat Tube well heater is sent in Cryo Heat Tube well heater, high-temperature flue gas proceeds heat exchange by the heat pipe heat with some heat exchanger fins of Cryo Heat Tube well heater, the flue gas that temperature is 150 ~ 200 DEG C enters fume exhaust system from the exhanst gas outlet of Cryo Heat Tube well heater, when first high-temperature heat pipe well heater carbon deposit reaches set amount, stop the first cooling high-temperature fume flow process, run the second cooling high-temperature fume flow process, when second high-temperature heat pipe well heater carbon deposit reaches set amount, stop the second cooling high-temperature fume flow process, run the first cooling high-temperature fume flow process,
3) process of carbon deposit:
When first high-temperature heat pipe well heater carbon deposit reaches set amount, stop the first cooling high-temperature fume flow process, run the second cooling high-temperature fume flow process, first high-temperature heat pipe well heater is made charcoal, by the spout of making charcoal of the first high-temperature heat pipe well heater, water vapour or combustion gas are sent into the first high-temperature heat pipe well heater, after burning and gasification reaction, made charcoal by the first high-temperature heat pipe well heater again and purge import to the first high-temperature heat pipe well heater and make charcoal and purge outlet and purge, make charcoal and after terminating, close the spout of making charcoal of the first high-temperature heat pipe well heater, first high-temperature heat pipe well heater is made charcoal and is purged import and the first high-temperature heat pipe well heater and make charcoal and purge outlet, when second high-temperature heat pipe well heater carbon deposit reaches set amount, stop the second cooling high-temperature fume flow process, run the first cooling high-temperature fume flow process, second high-temperature heat pipe well heater is made charcoal, by the spout of making charcoal of the second high-temperature heat pipe well heater, water vapour or combustion gas are sent into the second high-temperature heat pipe well heater, after burning and gasification reaction, made charcoal by the second high-temperature heat pipe well heater again and purge import to the second high-temperature heat pipe well heater and make charcoal and purge outlet and purge, make charcoal and after terminating, close the spout of making charcoal of the second high-temperature heat pipe well heater, second high-temperature heat pipe well heater is made charcoal and is purged import and the second high-temperature heat pipe well heater and make charcoal and purge outlet,
4) process of dust stratification:
While carbon deposit process, carry out the process of dust stratification, while the second heat pipe high temperature heater (HTH) is made charcoal, blow grey air inlet valve from the second high-temperature heat pipe well heater and pass into high-pressure air, now, open the second high-temperature heat pipe well heater wind ash outlet valve, the ash purged and grey wind mixture enter separator through the second high-temperature heat pipe well heater wind ash outlet valve and carry out ash, gas separation, after purging terminates, close the second high-temperature heat pipe well heater and blow grey air inlet valve and the second high-temperature heat pipe well heater wind ash outlet valve; When making charcoal simultaneously to the first heat pipe heater, blow grey air inlet valve from the first high-temperature heat pipe well heater and pass into high-pressure air, now, open the first high-temperature heat pipe well heater wind ash outlet valve, the ash purged and grey wind mixture enter separator through the first high-temperature heat pipe well heater wind ash outlet valve and carry out ash, gas separation, after purging terminates, close the first high-temperature heat pipe well heater and blow grey air inlet valve and the first high-temperature heat pipe well heater wind ash outlet valve.
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