CN110630219A - Kiln for burning oil-containing mixture at high temperature - Google Patents
Kiln for burning oil-containing mixture at high temperature Download PDFInfo
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- CN110630219A CN110630219A CN201910798103.XA CN201910798103A CN110630219A CN 110630219 A CN110630219 A CN 110630219A CN 201910798103 A CN201910798103 A CN 201910798103A CN 110630219 A CN110630219 A CN 110630219A
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- Prior art keywords
- kiln
- oil
- fire forging
- containing mixture
- fire
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- 239000000203 mixture Substances 0.000 title claims abstract description 61
- 238000005242 forging Methods 0.000 claims abstract description 87
- 238000010304 firing Methods 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims description 18
- 239000012535 impurity Substances 0.000 claims description 15
- 239000000428 dust Substances 0.000 claims description 12
- 239000000446 fuel Substances 0.000 claims description 9
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 8
- 230000009467 reduction Effects 0.000 claims description 8
- 239000003638 chemical reducing agent Substances 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 6
- 239000011343 solid material Substances 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000002283 diesel fuel Substances 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 4
- 239000003345 natural gas Substances 0.000 claims description 4
- 238000000746 purification Methods 0.000 claims description 4
- 239000000779 smoke Substances 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 239000003502 gasoline Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000002912 waste gas Substances 0.000 claims description 3
- 238000010285 flame spraying Methods 0.000 abstract description 7
- 239000002699 waste material Substances 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 92
- 230000008569 process Effects 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 6
- 238000011084 recovery Methods 0.000 description 6
- 239000010802 sludge Substances 0.000 description 6
- 238000000926 separation method Methods 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 4
- 238000005553 drilling Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002920 hazardous waste Substances 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 239000007790 solid phase Substances 0.000 description 3
- 238000001354 calcination Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 230000026058 directional locomotion Effects 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 238000003837 high-temperature calcination Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/005—Waste disposal systems
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/005—Waste disposal systems
- E21B41/0071—Adaptation of flares, e.g. arrangements of flares in offshore installations
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention belongs to the technical field of kiln equipment, and particularly relates to a kiln for firing an oil-containing mixture at high temperature, which comprises a fire-forging furnace kiln as a kiln main body; a screw conveyor inserted into the inner cavity of the fire forging kiln is arranged at the upper end of the kiln tail of the fire forging kiln, and the front end of the screw conveyor is coupled with a feeding hole; a burner is arranged in the middle of the kiln tail of the fire forging kiln, and a flame spraying port of the burner faces the inner cavity of the fire forging kiln; the upper end of the kiln head of the fire forging kiln is provided with a moisture exhaust port; a discharge port is formed at the bottom of the kiln head of the fire forging furnace kiln; the equidistant spiral disk on the inner side of the kiln wall of the fire forging kiln is provided with a coil pipe which traverses the kiln body of the fire forging kiln; the coil pipe is connected with a rotary joint extending out of the kiln body from the middle part of the kiln head of the fire forging furnace kiln. The invention provides a kiln for burning an oil-containing mixture at high temperature, and discloses brand-new kiln equipment, which realizes the on-site treatment and the rapid treatment of the oil-containing mixture, saves the treatment cost of dangerous waste materials such as the oil-containing mixture and the like, saves energy, reduces emission and protects the environment.
Description
Technical Field
The invention belongs to the technical field of kiln equipment, and particularly relates to a kiln for firing an oil-containing mixture at high temperature.
Background
In the process of petroleum drilling and exploitation, a large amount of oil-based mud and oil-based mud drill cuttings are generated, wherein the oil-based mud and the oil-based mud drill cuttings mainly comprise a solid phase, an oil phase and a water phase, the solid phase mainly comes from broken rock debris, mud additives and sundries such as stones in the transportation process, and the oil phase mainly comprises diesel oil, white oil, biological oil, mineral oil and the like. Part of the oil mud in the oil-based mud and oil-based mud drill cuttings and the oil adsorbed on the solid phase surface are important resources, and if the oil in the oil-based mud and oil-based mud drill cuttings cannot be effectively recycled, the oil can have serious influence on the regional environment and cause serious resource waste.
Similarly, during the process of storing and transporting petroleum produced by drilling to an oil refinery, a large amount of oil sludge falling to the ground can be produced, and a large amount of precipitated oil sludge can be produced in a crude oil storage tank and an oil pipeline, and the oil storage and oil transportation capacity of the oil tank and the pipeline can be seriously affected by the precipitated oil sludge if the precipitated oil sludge is not cleaned regularly. However, if the oil bases in the collected and cleaned falling oil sludge and the precipitated oil sludge cannot be effectively recovered, the regional environment is seriously influenced, and meanwhile, serious resource waste is caused.
The separation and recovery of the oil-containing mixture generated in the process of petroleum drilling and oil extraction recovery is always a difficult problem in the industry, the oil-containing mixture cannot be directly discharged on site, a large amount of transportation cost and hazardous waste treatment cost can be consumed by entrusting the oil-containing mixture to a special hazardous waste treatment company, and the traditional distillation thermal desorption technology is too complex in process equipment, so that brand new equipment and process are urgently needed to simplify the treatment process of the oil-containing mixture.
Disclosure of Invention
The invention aims to provide a kiln for burning an oil-containing mixture at high temperature, discloses brand-new kiln equipment, realizes the in-situ treatment and the rapid treatment of the oil-containing mixture, greatly saves the treatment cost of hazardous waste materials such as the oil-containing mixture and the like, saves energy, reduces emission and protects the environment.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a kiln for firing an oil-containing mixture at a high temperature includes a calciner kiln as a kiln main body; a screw conveyor inserted into the inner cavity of the fire forging kiln is arranged at the upper end of the kiln tail of the fire forging kiln, and the front end of the screw conveyor is coupled with a feeding hole; a burner is arranged in the middle of the kiln tail of the fire forging kiln, and a flame spraying port of the burner faces the inner cavity of the fire forging kiln; the upper end of the kiln head of the fire forging kiln is provided with a moisture exhaust port; a discharge port is formed at the bottom of the kiln head of the fire forging furnace kiln; the equidistant spiral disk on the inner side of the kiln wall of the fire forging kiln is provided with a coil pipe which traverses the kiln body of the fire forging kiln; the coil pipe is connected with a rotary joint extending out of the kiln body from the middle part of the kiln head of the fire forging furnace kiln.
The technical scheme of the invention is further improved as follows: the bottom of the fire forging kiln is provided with a supporting base, and a speed reducer and a transmission gear which drive the kiln wall of the fire forging kiln to rotate are arranged on one side of the fire forging kiln above the supporting base.
The technical scheme of the invention is further improved as follows: the pipe diameter of the coil pipe is 100mm and the heat conducting oil to be heated flows through the coil pipe.
The technical scheme of the invention is further improved as follows: several interconnected coil pipes are vertically stacked and spirally mounted on the inner side of the kiln wall of the fire forging kiln.
The technical scheme of the invention is further improved as follows: the spiral plate is arranged on the inner side of the kiln wall of the fire forging kiln, and the number of the coil pipes traversing the kiln body of the fire forging kiln is gradually increased from the kiln tail to the kiln head.
A method for separating and recovering oil-containing mixture by high-temperature burning comprises the following steps:
1) the oil-containing mixture enters the inner cavity of the fire forging kiln through a screw conveyer;
2) the oil-containing mixture slowly moves towards the discharge hole under the action of the matching of the rotary kiln wall and the relatively fixed coil pipe;
3) the oil-containing mixture is heated and forged between a coil pipe in the inner cavity of the fire forging furnace kiln and flame sprayed by a burner, oil-based impurities are gasified and separated, and the oil-based impurities are discharged through a moisture discharging port;
4) and the high-temperature solid material after the oil-based impurities are separated is collected through a discharge port in a centralized manner.
The technical scheme of the invention is further improved as follows: in the step 3), the fuel of the combustor is gas or liquid fuel such as natural gas, gasoline, diesel oil and the like; the temperature of the hot flame sprayed by the burner is above 1300 ℃.
The technical scheme of the invention is further improved as follows: and 3) in the step 3), the waste gas discharged from the moisture discharging port is emptied after sequentially passing through a spray tower, cyclone dust removal, speed reduction and temperature reduction, electrostatic dust removal, electrostatic smoke removal and cloth bag dust removal purification.
The technical scheme of the invention is further improved as follows: in the step 4), the high-temperature solid materials discharged from the discharge port are quickly cooled by a water chiller unit and then collected in a centralized manner.
Due to the adoption of the technical scheme, the invention has the technical progress that:
according to the kiln for firing the oil-containing mixture at the high temperature, provided by the invention, various oil-based impurities contained in the oil-containing mixture are gasified, separated and combusted by utilizing the high-temperature sintering technology of the fire forging kiln for firing the oil-containing mixture at the high temperature, so that the oil-containing mixture is quickly and effectively treated.
The invention provides a kiln for firing an oil-containing mixture at a high temperature, wherein heat conducting oil which flows through a coil pipe of a kiln body of a fire forging kiln is arranged on equidistant spiral disks on the inner side of the kiln wall of the fire forging kiln and is heated, and the equidistant spiral disks are matched with a burner in the inner cavity of the fire forging kiln to spray fire, so that the heating temperature of the oil-containing mixture in the inner cavity of the fire forging kiln is fully ensured, conventional oil-based impurities are removed, a large amount of gasification and separation are carried out, and impurities such as stubborn asphalt, various catalyst residues and the like are volatilized through combustion oxidation, and the rapid separation of various oil-based impurities contained in the oil-containing mixture is completely realized.
According to the kiln for firing the oil-containing mixture at the high temperature, provided by the invention, the burner is used for firing in the inner cavity of the calcining furnace kiln, so that the high-temperature calcination of the oil-containing mixture is realized, and the heat utilization efficiency of the high-temperature treatment of the oil-containing mixture in the calcining furnace kiln is improved; and the burner has simple and stable flame spraying structure, wide combustible fuel variety selection, ideal actual use effect and high treatment efficiency.
The invention provides a method for separating and recycling oil-containing mixture in a kiln by high-temperature firing, which utilizes the kiln for burning the oil-containing mixture by high-temperature firing provided by the invention to control the temperature of hot flame sprayed by a burner to be more than 1300 ℃ by utilizing the high-temperature sintering technology of a fire forging kiln in a recovery processing device of the oil-containing mixture, thereby realizing the gasification and separation of various oil-based impurities contained in the oil-containing mixture and more effectively avoiding the generation of dioxin phenomenon.
According to the kiln for burning the oil-containing mixture at the high temperature, the spiral disc is arranged on the inner side of the kiln wall of the fire forging kiln, the number of the coil pipes traversing the kiln body of the fire forging kiln is gradually increased from the tail of the kiln to the head of the kiln, the heating and heat storage capacity of heat conduction oil in the coil pipes on one side far away from a flame spraying port of a burner is improved, the overall heat distribution of the whole kiln is more uniform, and the utilization rate of the heat of flame spraying of the burner is effectively increased.
The invention provides a kiln for burning an oil-containing mixture at high temperature, wherein a speed reducer and a transmission gear which drive the kiln wall of a fire forging kiln to rotate are arranged on one side of the fire forging kiln, a coil pipe is connected with a rotary joint extending out of the kiln body from the middle part of the kiln head of the fire forging kiln, and the coil pipe traversing the kiln body of the fire forging kiln is arranged on an equidistant spiral disc which is relatively fixed through the rotation of the kiln body of the fire forging kiln, so that the oil-containing mixture entering the fire forging kiln is driven to move forwards at a constant speed, and meanwhile, uniform heating is realized; and the control of the processing speed of the oil-containing mixture can be realized by controlling the rotating speed of the speed reducer.
Drawings
FIG. 1 is a schematic structural view of an apparatus for recovering and treating an oil-containing mixture according to the present invention;
FIG. 2 is a process flow diagram of a process for the high temperature firing separation recovery of an oil-containing mixture in a kiln provided by the present invention;
the device comprises a burner 1, a burner 2, a feeding port 3, a screw conveyer 4, a coil pipe 5, a kiln head 6, a moisture exhaust port 7, a discharging port 8, a speed reducer 9, a transmission gear 10, a supporting base 11 and a rotary joint.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is a schematic structural diagram of a recovery processing device for an oil-containing mixture provided by the invention, and the kiln for firing the oil-containing mixture at high temperature comprises a fire-forging furnace kiln as a kiln main body; a screw conveyor 3 inserted into the inner cavity of the fire forging kiln is arranged at the upper end of the kiln tail of the fire forging kiln, and the front end of the screw conveyor 3 is coupled with a feeding hole 2; a burner 1 is arranged in the middle of the tail of the fire forging kiln, and a flame spraying port of the burner 1 faces to the inner cavity of the fire forging kiln; the upper end of a kiln head 5 of the fire forging kiln is provided with a moisture exhaust port 6; a discharge port 7 is arranged at the bottom of the kiln head 5 of the fire forging furnace; the coil pipe 4 which traverses the kiln body of the fire forging kiln is arranged on the equidistant spiral disk on the inner side of the kiln wall of the fire forging kiln; the coil pipe 4 is connected with a rotary joint 11 extending out of the kiln body from the middle part of the kiln head 5 of the fire forging furnace kiln.
Further, the pipe diameter of the coil pipe 4 is 100mm and the heat conducting oil to be heated flows through, and the oil temperature of the heat conducting oil to be heated is above 270 ℃ under the condition of flame spraying heating of the burner 1. In the embodiment provided by the invention, a plurality of interconnected coil pipes 4 are vertically stacked longitudinally and spirally arranged on the inner side of the kiln wall of the fire forge furnace kiln.
Specifically, the spiral plate is arranged on the inner side of the kiln wall of the fire forging kiln, and the number of the coil pipes 4 which traverse the kiln body of the fire forging kiln is gradually increased from the kiln tail to the kiln head 5. In the embodiment provided by the invention, 2 coil pipes 4 spirally coiled on the inner side of the kiln wall at the kiln tail of the fire forging furnace kiln are vertically stacked in the longitudinal direction; 5 spiral coil pipes 4 spirally coiled on the inner side of the kiln wall at the kiln head 5 of the fire forging furnace are vertically stacked. More and more coil pipes 4 are used for containing more heat-conducting oil for absorbing and storing heat; and because the number of the coil pipes 4 which are vertically stacked in the longitudinal direction is increased, a deeper spiral track is formed by combining the kiln wall of the fire forging kiln, and the deeper spiral track is used for guiding the oil-containing mixture to do directional movement in the inner cavity of the kiln body of the fire forging kiln and ensuring the full heating reaction of the oil-containing mixture.
Furthermore, a supporting base 10 is arranged at the bottom of the fire forging kiln, and a speed reducer 8 and a transmission gear 9 which drive the wall of the fire forging kiln to rotate are arranged on one side of the fire forging kiln above the supporting base 10. In the embodiment provided by the invention, the main body part of the fire forging kiln arranged on the supporting base 10 can be horizontally arranged, and the kiln head 5 of the fire forging kiln can also be obliquely arranged by lowering.
Further, an air inlet is formed in the upper end of the kiln tail of the fire forging kiln, and a fan is arranged on the air inlet and used for absorbing the air combustion-supporting combustor 1.
Furthermore, a moisture exhaust port 6 arranged at the upper end of the kiln head 5 of the fire forging kiln is externally connected with a gas purification and drying device such as a spray tower, cyclone dust removal, speed reduction and temperature reduction, electrostatic dust removal, electrostatic smoke removal, cloth bag dust removal and the like, and is used for purifying impurities in exhaust gas of the fire forging kiln so as to reach the evacuation standard.
Further, a heat insulation layer is arranged outside the kiln wall of the fire forging kiln. The heat-insulating layer is wrapped on the outer wall of the kiln body of the fire forging kiln in equal thickness and is made of high-temperature-resistant heat-insulating materials. In the embodiment provided by the invention, the heat-insulating layer is glass wool with the thickness of 800 mm.
Further, as shown in fig. 2, the present invention provides a method flow chart of a method for separating and recovering an oil-containing mixture in a kiln by high-temperature firing, and based on the kiln for high-temperature firing the oil-containing mixture provided by the present invention, the present invention also discloses a method for separating and recovering an oil-containing mixture in a kiln by high-temperature firing, wherein the recovery processing method comprises the following steps:
1. the oil-containing mixture enters the inner cavity of the fire forging furnace kiln through the screw conveyer.
2. The oil-containing mixture slowly moves towards the discharge hole under the action of the matching of the rotary kiln wall and the relatively fixed coil pipe.
3. The oil-containing mixture is heated and forged between the coil pipe in the inner cavity of the fire forging furnace kiln and the flame sprayed by the burner, the oil-based impurities are gasified and separated, and the oil-based impurities are discharged through a moisture discharging port.
Specifically, the fuel of the combustor is gas or liquid fuel such as natural gas, gasoline, diesel oil and the like, and the combustible fuel is widely selected; in the embodiment provided by the invention, natural gas is used as fuel for the combustor, and the temperature of hot flame sprayed by the combustor is above 1300 ℃; the oil temperature of the heat conducting oil to be heated circulating in the coil pipe 4 reaches above 270 ℃ under the condition of flame-throwing heating of the burner 1.
In the embodiment provided by the invention, the waste gas discharged from the moisture exhaust port is exhausted after being subjected to spray tower, cyclone dust removal, speed reduction and temperature reduction, electrostatic dust removal, electrostatic smoke removal and cloth bag dust removal purification in sequence.
4. And the high-temperature solid material after the oil-based impurities are separated is collected through a discharge port in a centralized manner.
The high-temperature solid material discharged from the discharge port is quickly cooled and collected after being concentrated by the water chiller unit. In the embodiment provided by the invention, the water chilling unit is a spiral water-cooling mechanism.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (9)
1. A kiln for firing an oil-containing mixture at a high temperature is characterized in that: comprises a fire forging furnace kiln as a kiln main body; a screw conveyor (3) inserted into the inner cavity of the fire forging kiln is arranged at the upper end of the kiln tail of the fire forging kiln, and the front end of the screw conveyor (3) is coupled with a feeding hole (2); a burner (1) is arranged in the middle of the kiln tail of the fire forging kiln, and a flame port of the burner (1) faces to the inner cavity of the fire forging kiln; the upper end of a kiln head (5) of the fire forging kiln is provided with a moisture exhaust port (6); a discharge port (7) is arranged at the bottom of the kiln head (5) of the fire forging furnace kiln; the equidistant spiral disk on the inner side of the kiln wall of the fire forging kiln is provided with a coil pipe (4) which traverses the kiln body of the fire forging kiln; the coil pipe (4) is connected with a rotary joint (11) extending out of the kiln body from the middle part of the kiln head (5) of the fire forging furnace kiln.
2. A kiln for high temperature firing of an oil containing mixture as claimed in claim 1, characterized in that: the bottom of the fire forging kiln is provided with a supporting base (10), and a speed reducer (8) and a transmission gear (9) which drive the kiln wall of the fire forging kiln to rotate are arranged on one side of the fire forging kiln above the supporting base (10).
3. A kiln for high temperature firing of an oil containing mixture as claimed in claim 1, characterized in that: the pipe diameter of the coil pipe (4) is 100mm and the heat conducting oil to be heated flows through the coil pipe.
4. A kiln for high temperature firing of an oil containing mixture as claimed in claim 1, characterized in that: a plurality of mutually communicated coil pipes (4) are vertically stacked in a longitudinal direction and are spirally arranged on the inner side of the kiln wall of the fire forging kiln.
5. The kiln for high temperature firing of an oil-containing mixture as claimed in claim 4, wherein: the spiral plate is arranged on the inner side of the kiln wall of the fire forging kiln, and the number of the coil pipes (4) which cross the kiln body of the fire forging kiln is gradually increased from the kiln tail to the kiln head (5).
6. A method for separating and recovering oil-containing mixture by high-temperature burning is characterized by comprising the following steps:
1) the oil-containing mixture enters the inner cavity of the fire forging kiln through a screw conveyer;
2) the oil-containing mixture slowly moves towards the discharge hole under the action of the matching of the rotary kiln wall and the relatively fixed coil pipe;
3) the oil-containing mixture is heated and forged between a coil pipe in the inner cavity of the fire forging furnace kiln and flame sprayed by a burner, oil-based impurities are gasified and separated, and the oil-based impurities are discharged through a moisture discharging port;
4) and the high-temperature solid material after the oil-based impurities are separated is collected through a discharge port in a centralized manner.
7. The method for separating and recovering the oil-containing mixture in the kiln through high-temperature firing according to claim 6, characterized in that: in the step 3), the fuel of the combustor is gas or liquid fuel such as natural gas, gasoline, diesel oil and the like; the temperature of the hot flame sprayed by the burner is above 1300 ℃.
8. The method for separating and recovering the oil-containing mixture in the kiln through high-temperature firing according to claim 6, characterized in that: and 3) in the step 3), the waste gas discharged from the moisture discharging port is emptied after sequentially passing through a spray tower, cyclone dust removal, speed reduction and temperature reduction, electrostatic dust removal, electrostatic smoke removal and cloth bag dust removal purification.
9. The method for separating and recovering the oil-containing mixture in the kiln through high-temperature firing according to claim 6, characterized in that: in the step 4), the high-temperature solid materials discharged from the discharge port are quickly cooled by a water chiller unit and then collected in a centralized manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910798103.XA CN110630219B (en) | 2019-08-27 | 2019-08-27 | Kiln for burning oil-containing mixture at high temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910798103.XA CN110630219B (en) | 2019-08-27 | 2019-08-27 | Kiln for burning oil-containing mixture at high temperature |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110630219A true CN110630219A (en) | 2019-12-31 |
| CN110630219B CN110630219B (en) | 2022-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910798103.XA Active CN110630219B (en) | 2019-08-27 | 2019-08-27 | Kiln for burning oil-containing mixture at high temperature |
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