CN211394371U - High-temperature carbonization drying equipment for oil-containing waste in oil field - Google Patents
High-temperature carbonization drying equipment for oil-containing waste in oil field Download PDFInfo
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- CN211394371U CN211394371U CN201921449764.3U CN201921449764U CN211394371U CN 211394371 U CN211394371 U CN 211394371U CN 201921449764 U CN201921449764 U CN 201921449764U CN 211394371 U CN211394371 U CN 211394371U
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Abstract
The utility model discloses a high-temperature carbonization drying device for oily wastes in oil fields, which comprises a pyrolysis distillation device, a condensing device and an oil-water collection storage tank, wherein the pyrolysis distillation device comprises a distillation still and a stirring mechanism, the oil-water vapor outlet of the distillation still is connected with the oil-water vapor inlet of the condensing device, the oil-water outlet of the condensing device is connected with the oil-water collection storage tank, and the condensing device comprises a condenser, a back flush water pump, a back flush water tank and 4 valves; an oil-water vapor outlet of the distillation kettle is connected with an oil-water vapor inlet of a condenser through a first valve, and an oil-water outlet of the condenser is communicated with an oil-water collecting storage tank; the inlet of the back flushing water pump is connected with the outlet of the back flushing water tank, the outlet of the back flushing water pump is connected with the oil-water outlet of the condenser through a third valve, and the oil-water steam inlet of the condenser is connected with the inlet of the back flushing water tank through a fourth valve. The utility model discloses can self-cleaning condenser, prevent that the condenser from reducing heat exchange efficiency because of the deposit dust.
Description
[ technical field ]
The utility model relates to an oily waste recovery processing in oil field especially relates to an oily waste's in oil field high temperature carbonization drying equipment.
[ background art ]
The oily waste of the oil field mainly comprises oily drill cuttings and oily sludge, and the oily drill cuttings and the oily sludge respectively come from links such as oil and gas drilling, development, transportation and the like. At present, along with the increasing of development force of unconventional energy sources such as global shale gas, dense gas and the like, the application of an oil-based drilling fluid technology is more and more common, a large amount of oil-containing drill cuttings can be generated in the drilling process, and on the other hand, oil is carried to the ground from the stratum and can also generate oil-containing sludge after being settled in various containers, tanks, pipelines and other facilities. If these waste materials are not properly disposed of, they can cause varying degrees of impact and damage to the work area and surrounding environment. The high-temperature carbonization drying equipment for the oily waste can dehydrate and deoil the oily waste, so that the high-temperature carbonization drying and oil-water recycling of solid substances in the oily waste are realized.
The invention with the application number of CN201510654006.5 discloses a distillation pyrolysis device and a material treatment method, wherein the distillation pyrolysis device comprises a distillation kettle; the material inlet is arranged at the upper part of the distillation kettle; the stirring shaft penetrates through the distillation kettle along the length direction of the distillation kettle; at least one scraper component which is arranged on the stirring shaft and is contacted with the inner wall of the distillation kettle; the electromagnetic induction heater is arranged outside the distillation still, and the distillation still is positioned in an alternating magnetic field generated by the electromagnetic induction heater; and the at least one slag discharge port is arranged at the lower part of the distillation kettle. And the gasified gas of the distillation kettle enters a fraction condenser for cooling and then is recovered, the gas is stored in a temporary storage tank for carrying out fine separation on a next-stage disc center machine, and the treated residue enters a residue cooling tank for temporary storage.
The oil-containing waste of the oil field contains a lot of solid substances, the gas gasified by the distillation still contains more dust, and the dust enters the condenser and can be hung on the pipe wall of the condenser, so that the heat exchange efficiency of the condenser is reduced, and even the condenser is blocked. If the condenser is manually cleaned, the machine needs to be stopped, and the working efficiency of the equipment is reduced.
[ summary of the invention ]
The to-be-solved technical problem of the utility model is to provide a can self-cleaning condenser, prevent that the condenser from reducing heat exchange efficiency's oil field oily discarded object's high temperature carbonization drying equipment because of the deposit dust.
In order to solve the technical problem, the utility model adopts the technical scheme that the high-temperature carbonization drying equipment for the oily waste in the oil field comprises a pyrolysis distillation device, a condensing device and an oil-water collection storage tank, wherein the pyrolysis distillation device comprises a distillation kettle and a stirring mechanism, an oil-water steam outlet of the distillation kettle is connected with an oil-water steam inlet of the condensing device, an oil-water outlet of the condensing device is connected with the oil-water collection storage tank, and the condensing device comprises a condenser, a back flush water pump, a back flush water tank and 4 valves; an oil-water vapor outlet of the distillation kettle is connected with an oil-water vapor inlet of a condenser through a first valve, and an oil-water outlet of the condenser is communicated with an oil-water collecting storage tank; the inlet of the back flushing water pump is connected with the outlet of the back flushing water tank, the outlet of the back flushing water pump is connected with the oil-water outlet of the condenser through a third valve, and the oil-water steam inlet of the condenser is connected with the inlet of the back flushing water tank through a fourth valve.
The high-temperature carbonization drying equipment comprises a condenser, a heat exchanger, a cooling water tank and a cooling water pump, wherein the inlet of the cooling water pump is connected with the outlet of the cooling water tank, the outlet of the cooling water pump is connected with the cooling water inlet of the shell-type heat exchanger, and the cooling water outlet of the shell-type heat exchanger is connected with the inlet of the cooling water tank.
The high-temperature carbonization drying equipment is characterized in that the valve is a pneumatic valve.
The condensing device of the high-temperature carbonization drying equipment comprises a backwashing water supply pump and a blow-down valve, wherein the inlet of the backwashing water supply pump is connected with the oil-water collecting storage tank, the outlet of the backwashing water supply pump is connected with the backwashing water tank, and the blow-down outlet at the bottom of the backwashing water tank is connected with the blow-down valve.
The high-temperature carbonization drying equipment comprises a dust filter and a fifth valve, wherein an oil-water vapor outlet of the distillation kettle is connected with an inlet of the dust filter through the fifth valve, and an outlet of the dust filter is connected with an oil-water vapor inlet of the condenser through the first valve.
The utility model discloses can self-cleaning condenser, prevent that the condenser from reducing heat exchange efficiency because of the deposit dust.
[ description of the drawings ]
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic block diagram of high-temperature carbonization drying equipment for oil field oily waste according to an embodiment of the present invention.
[ detailed description of the invention ]
The embodiment of the utility model provides a high temperature carbonization drying equipment of oily discarded object in oil field's structure and theory of operation are as shown in figure 1, and high temperature carbonization drying equipment includes pyrolysis distillation plant, dust filter, condensing equipment and profit collection storage jar.
The distillation device comprises a distillation kettle and a stirring mechanism, wherein the distillation kettle comprises a barrel, a heating device, a front end plate, a rear end plate, a feeding hole, a steam exhaust outlet and two waste residue outlets.
The periphery of the cylinder body is wrapped with an insulating layer, the heating device is an electromagnetic induction heater, and an annular coil of the electromagnetic induction heater is arranged in the insulating layer at the lower part of the cylinder body.
The feeding port is connected with an oily sludge metering and conveying pump through a feeding pneumatic valve, the two waste residue outlets are respectively arranged at the middle section and the rear section of the bottom of the cylinder body, and the waste residue outlets are respectively connected with the two ash discharging screw conveyors through two valves after penetrating through the insulating layer.
The condensing device comprises a condenser, a back washing water pump, a back washing water tank and a back washing water supply pump.
The condenser comprises a shell-and-tube heat exchanger, a cooling water tank and a cooling water pump, wherein the inlet of the cooling water pump is connected with the outlet of the cooling water tank, and the outlet of the cooling water pump is connected with the cooling water inlet of the shell-and-tube heat exchanger. The cooling water outlet of the shell-and-tube heat exchanger is connected with the inlet of the cooling water tank.
An oil-water vapor outlet of the distillation kettle (high-temperature horizontal reaction kettle) is connected with an inlet of a dust filter through a pneumatic valve 5, and an outlet of the dust filter is connected with an oil-water vapor inlet of the shell-type heat exchanger through a pneumatic valve 1. The oil-water outlet of the shell-and-tube heat exchanger is connected with an oil-water temporary storage metering tank through a pneumatic valve 2, and the outlet of the oil-water temporary storage metering tank is connected with an oil-water collection storage tank through a pneumatic valve 6.
In addition, the inlet of the backwashing water pump is connected with the outlet of the backwashing water tank, the outlet of the backwashing water pump is connected with the oil-water outlet of the shell-type heat exchanger through the pneumatic valve 3, and the oil-water steam inlet of the shell-type heat exchanger is also connected with the inlet of the backwashing water tank through the pneumatic valve 4.
The inlet of the back washing water supply pump is connected with an oil-water collecting storage tank, the outlet of the back washing water supply pump is connected with a back washing water tank through a pneumatic valve 7, and the sewage discharge outlet at the bottom of the back washing water tank is connected with a sewage discharge valve.
When the high-temperature carbonization drying device for the oily waste in the oil field works, firstly, the vacuum pump is used for vacuumizing the interior of the distillation kettle, when the vacuum degree in the distillation kettle reaches a certain value, the feeding pneumatic valve is opened, the oily sludge metering and conveying pump is used for metering the oily waste and then inputting the oily waste into the distillation kettle, when the set conveying capacity is reached, the metering and feeding are completed, the feeding pneumatic valve is closed, the electromagnetic induction heating device is started, the outer wall is heated and transferred to oily sludge and drilling wastes in the distillation kettle, the stirring mechanism (high-temperature anti-coking device) in the distillation kettle is started to uniformly stir the oily sludge and the drilling wastes to achieve the effect of uniform heating, and the scraping blade extended by the high-temperature anti-coking mechanism is attached to the wall of the distillation kettle to rotate for 360 degrees to scrape the oily sludge and the drilling wastes on the wall of the distillation kettle, so that the wall of the distillation kettle is kept clean and free of scaling, and the heat transfer efficiency cannot be weakened. When the temperature of the oily sludge and the drilling waste in the distillation kettle reaches 60 ℃, the water in the oily sludge and the drilling waste starts boiling gasification, and when the temperature reaches 280 ℃, the oil in the oily sludge and the drilling waste starts boiling gasification. At this time, the pneumatic valve 5 installed at the exhaust outlet is opened to discharge the oil-water vapor. Because the oil-containing sludge and the drilling waste can generate dust when being dried, oil-water vapor passes through the dust filter, and the dust generated when the oil-containing sludge and the drilling waste are dried is filtered. Comparatively clean oil vapor and vapor get into shell and tube heat exchange device through the pneumatic valve 1 that opens, and oil vapor, the vapor that shell and tube heat exchange device is right carry out the heat exchange, and the condensation becomes oil water mixture, and oil water mixture flows the profit earlier through the pneumatic valve 2 that opens and keeps in the metering tank, measures it, after reaching a certain amount, arranges to profit collection storage jar through opening pneumatic valve 6. And oil-water mixed liquid output by the oil-water collection storage tank is recovered after oil-water separation by a centrifugal machine. The non-condensable gas contained in the oil-water mixed liquid is firstly led into an alkaline washing tank to neutralize the acid gas, then is led into a desulfurizing tank to absorb trace hydrogen sulfide, and finally is discharged after the alkane gas is combusted through a set of tail gas catalytic combustion. And the oily sludge and the drilling waste are completely dried to form dry silt which is stored in the de-distillation kettle and is discharged by the two ash discharge screw conveyors, so that the aims of high-temperature carbonization and drying of the oily waste of the oil field and oil-water recycling are finally fulfilled, the treatment cost is low, and no secondary pollution is caused.
The embodiment of the utility model provides a high temperature carbonization drying equipment of oily discarded object in oil field is when preheating for the inside oily mud of stills and well drilling discarded object, can close pneumatic valve 1 and pneumatic valve 2, opens pneumatic valve 3 and pneumatic valve 4, starts the back flush water pump and carries out the back flush circulation, and the back flush water pump is with the back flush water case water oil reverse input shell and tube type heat exchanger, and the dust back flush that will pile up in the shell and tube type heat exchanger gets off and bring into the back flush water case and deposit.
In order to keep the oil-water mixed liquid of the backwashing water tank relatively clean, a drain valve of the backwashing water tank can be opened periodically to discharge the sludge stored in the backwashing water tank, and the sludge discharged from the backwashing water tank can be input into the distillation kettle again through the oil-containing sludge metering and conveying pump without generating secondary pollution. When the oil-water mixture in the backwashing water tank is insufficient, the pneumatic valve 7 and the backwashing water supply pump are opened, and the oil-water mixture is supplied to the backwashing water tank from the oil-water collection storage tank.
Claims (5)
1. The high-temperature carbonization drying equipment for the oily wastes in the oil field comprises a pyrolysis distillation device, a condensing device and an oil-water collection storage tank, wherein the pyrolysis distillation device comprises a distillation kettle and a stirring mechanism, an oil-water vapor outlet of the distillation kettle is connected with an oil-water vapor inlet of the condensing device, and an oil-water outlet of the condensing device is connected with the oil-water collection storage tank; an oil-water vapor outlet of the distillation kettle is connected with an oil-water vapor inlet of a condenser through a first valve, and an oil-water outlet of the condenser is communicated with an oil-water collecting storage tank; the inlet of the back flushing water pump is connected with the outlet of the back flushing water tank, the outlet of the back flushing water pump is connected with the oil-water outlet of the condenser through a third valve, and the oil-water steam inlet of the condenser is connected with the inlet of the back flushing water tank through a fourth valve.
2. The high-temperature carbonization drying device as claimed in claim 1, wherein the condenser comprises a shell-and-tube heat exchanger, a cooling water tank and a cooling water pump, the inlet of the cooling water pump is connected with the outlet of the cooling water tank, the outlet of the cooling water pump is connected with the cooling water inlet of the shell-and-tube heat exchanger, and the cooling water outlet of the shell-and-tube heat exchanger is connected with the inlet of the cooling water tank.
3. A high temperature carbonization drying apparatus as claimed in claim 1, wherein the valve is a pneumatic valve.
4. The high-temperature carbonization drying apparatus as claimed in claim 1, wherein the condensing means comprises a backwash water supply pump and a blowdown valve, the backwash water supply pump has an inlet connected to the oil-water collection storage tank and an outlet connected to the backwash water tank, and the blowdown outlet at the bottom of the backwash water tank is connected to the blowdown valve.
5. The high-temperature carbonization drying apparatus as claimed in claim 1, wherein the apparatus comprises a dust filter and a fifth valve, the oil-water vapor outlet of the distillation still is connected to the inlet of the dust filter through the fifth valve, and the outlet of the dust filter is connected to the oil-water vapor inlet of the condenser through the first valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921449764.3U CN211394371U (en) | 2019-08-30 | 2019-08-30 | High-temperature carbonization drying equipment for oil-containing waste in oil field |
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| CN201921449764.3U CN211394371U (en) | 2019-08-30 | 2019-08-30 | High-temperature carbonization drying equipment for oil-containing waste in oil field |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI833131B (en) * | 2021-11-15 | 2024-02-21 | 鐘介宏 | Subcritical water hydrolysis method and device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI833131B (en) * | 2021-11-15 | 2024-02-21 | 鐘介宏 | Subcritical water hydrolysis method and device |
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