CN210656798U - Low-temperature pyrolysis treatment system for solid organic hazardous waste - Google Patents
Low-temperature pyrolysis treatment system for solid organic hazardous waste Download PDFInfo
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- CN210656798U CN210656798U CN201921297306.2U CN201921297306U CN210656798U CN 210656798 U CN210656798 U CN 210656798U CN 201921297306 U CN201921297306 U CN 201921297306U CN 210656798 U CN210656798 U CN 210656798U
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Abstract
The utility model discloses a solid organic hazardous waste low temperature pyrolysis processing system relates to the environmental protection field, including the continuous pyrolysis stove, the one end of continuous pyrolysis stove has set up the charge-in system of taking self sealss function, and the other end has set up the carbon sediment discharge system of taking self sealss function, and the one end that the continuous pyrolysis stove goes out the carbon sediment still is equipped with pyrolysis gas discharge port, and pyrolysis gas discharge port's one end links to each other with cooling oil recovery system, and oil recovery system's bottom fixedly connected with goes out oil pipe. The utility model discloses compare with the useless incineration disposal of danger, utilize the instability of organic matter, under the condition of isolated air, with the organic matter in order to decompose into the micromolecule with the mode of outside heating, the micromolecule gasifies under the pyrolysis temperature, with material separation, makes the material can be innoxious, changes the organic matter into pyrolysis oil, pyrolytic carbon and combustible gas simultaneously, and the hot-blast heat supply that combustible gas purifies back high temperature combustion is pyrolysis process, and the residue contains pyrolytic carbon, inorganic inert and metal, can retrieve.
Description
Technical Field
The utility model relates to an environmental protection field, in particular to minimizing, innoxious and resourceful treatment system of solid organic hazardous waste low temperature pyrolysis.
Background
The solid waste mainly refers to solid and semi-solid discarded objects which lose the original utilization value or do not have the use value in human life and production activities, and liquid and gaseous objects placed in a container, wherein one type of the solid waste is toxic, strong-corrosivity, inflammable and explosive and called dangerous waste, and the waste with germs and infection generated by a medical system becomes medical waste.
A common industrial method for treating solid organic hazardous waste in the prior art is incineration. Hazardous waste incineration belongs to solid direct incineration, not only the flue gas volume is large, tail gas pollutant concentration is high, the treatment system investment is large, the treatment efficiency is unsatisfactory, the dioxin which is a virulent substance cannot be avoided, but also the incineration is incomplete, hazardous slag needs to be treated at a high cost and is buried, the harmlessness, the reduction and the recycling are established waste disposal principles in China, although the incineration has certain reduction, the residues are not harmfully treated, but the toxicity and the pollution property are stronger, the residues can be buried only through incremental treatment, and the recycling can not be realized.
Therefore, it is necessary to develop a low temperature pyrolysis treatment system for solid organic hazardous waste to solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a solid organic hazardous waste low temperature pyrolysis treatment system to solve the minimizing, innoxious and the resourceful problem of the solid organic hazardous waste who provides in the above-mentioned background art, it is big to solve the useless incineration disposal tail gas volume of organic danger, and it is big to discharge pollutant concentration height and tail gas treatment system input, the treatment effect subalternation problem.
In order to achieve the above object, the utility model provides a following technical scheme: a low-temperature pyrolysis treatment system for solid organic hazardous wastes comprises a continuous pyrolysis furnace, wherein one end of the continuous pyrolysis furnace is fixedly connected with a carbon outlet tube and a discharge tube, one end of the carbon outlet tube is fixedly connected with a carbon outlet system with a self-sealing function, one end of the discharge tube is fixedly connected with an oil receiving system, the bottom of the oil receiving system is fixedly connected with an oil outlet tube, the other end of the oil outlet tube is fixedly connected with a crude oil tank, the top of the oil receiving system is fixedly connected with an air outlet tube, one end of the air outlet tube is fixedly connected with a non-condensable gas purification tower, the top of the purification tower is fixedly connected with an air supply pipe, one end of the air supply pipe is fixedly connected with an air cabinet, the bottom of the air cabinet is fixedly connected with an exhaust pipe, one end of the exhaust pipe is fixedly connected with a hot blast stove through a flame arrester, one end of the hot, the one end fixedly connected with flue gas processing system of the pipe of discharging fume, discharge fume and go up fixed connection blowing pipeline, the one end of blowing pipeline and the export fixed connection of hot-blast furnace, hot-blast furnace outlet pipe pass through the exhaust fan and link to each other, with the hot-blast temperature of flue gas adjustment hot-blast furnace export, the feeding spiral of the other end fixed connection area sealing function of keeping away from out carbon of continuous pyrolysis stove, the other end and the feed bin of feeding spiral are connected.
Optionally, one end of the continuous pyrolysis furnace, which is far away from the carbon outlet tube, is fixedly connected with a feeding screw with a sealing function, and one end of the feeding screw is fixedly connected with a bin.
Optionally, the feeding screw is a self-sealing screw, and a sealing mechanism is fixedly installed between the inner container of the continuous pyrolysis furnace and the fixing covers at the two ends of the furnace.
Optionally, a furnace pipe and a heat preservation shell are fixedly mounted inside the continuous pyrolysis furnace, a cavity is formed between the furnace pipe and the heat preservation shell, and one end of the hot air pipe is connected with a cavity inlet between the inner pipe of the continuous pyrolysis furnace and the heat preservation sleeve.
Optionally, a valve and an oil outlet pump are fixedly mounted on the oil outlet pipe, and the valve is located at one end of the oil outlet pipe close to the oil collecting system.
Optionally, the oil receiving system comprises a spray cooling tower and a cooling heat exchanger, and the spray cooling tower is located below the cooling heat exchanger.
Optionally, the purification tower is an acid removal purification tower, and an electric tar precipitator is further fixedly mounted inside the purification tower.
Optionally, the number of the flue gas treatment systems is three, a flue gas pipe is fixedly connected between two adjacent flue gas treatment systems, and the three flue gas treatment systems are all connected with each other through the flue gas pipe.
The utility model discloses a technological effect and advantage:
1. by utilizing the instability of organic matters, the organic matters are removed after the properties of the organic matters are changed in a decomposition mode in an external heating mode under the condition of air isolation, so that the material pollution is greatly reduced.
2. The utility model discloses incineration compares to the pyrolysis gas that produces with organic matter decomposition realizes material thermal decomposition as fuel after purifying, and the noncondensable gas of burning only accounts for about 8% of discarded object, is gas combustion in addition, so tail gas emission is low, and pollutant content is few, can do the ultralow emission.
3. The utility model discloses change the organic matter into pyrolysis oil, pyrolytic carbon and combustible gas, the metal of sorting after the material innoxious etc. can all be with resource utilization.
4. Because the noncondensable gas in the pyrolysis process is high-temperature combustion after purification, a tail gas treatment system is greatly simplified, and the system investment is greatly reduced.
Drawings
Fig. 1 is a schematic diagram of the system of the present invention.
In the figure: 1. a continuous pyrolysis furnace; 2. discharging the carbon tube; 3. a carbon discharge system; 4. a discharge pipe; 5. an oil receiving system; 6. an oil outlet pipe; 7. a crude oil tank; 8. an air outlet pipe; 9. a purification tower; 10. an air supply pipe; 11. a gas holder; 12. an exhaust pipe; 13. a hot blast stove; 14. a hot air pipe; 15. a gas blowing line; 16. a smoke exhaust pipe; 17. A flue gas treatment system; 18. a flue gas pipe; 19. a feed screw; 20. a storage bin.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "disposed," "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The utility model provides a solid organic hazardous waste low-temperature pyrolysis treatment system as shown in figure 1, which comprises a continuous pyrolysis furnace 1, one end of the continuous pyrolysis furnace 1 is fixedly connected with a carbon outlet tube 2 and a discharge tube 4, one end of the pyrolytic carbon outlet tube 2 is fixedly connected with a carbon outlet system 3 with self-sealing function, one end of the discharge tube 4 is fixedly connected with an oil receiving system 5, the bottom of the oil receiving system 5 is fixedly connected with an oil outlet tube 6, the other end of the oil outlet tube 6 is fixedly connected with a crude oil tank 7, the top of the oil receiving system 5 is fixedly connected with an outlet tube 8, one end of the outlet tube 8 is fixedly connected with a non-condensable gas purification tower 9, the top of the purification tower 9 is fixedly connected with an air supply tube 10, one end of the air supply tube 10 is fixedly connected with an air cabinet 11, the bottom of the air cabinet 11 is fixedly connected with an exhaust, one end fixedly connected with hot-blast main 14 of hot-blast furnace 13, the cavity access connection between the inner bag of one end and continuous pyrolysis oven 1 of hot-blast main 14 and the insulation cover, the one end fixedly connected with of hot-blast main 14 is kept away from to continuous pyrolysis oven 1 discharges fume tub 16, the one end fixedly connected with flue gas processing system 17 of the tub 16 of discharging fume, it passes through the exhaust fan with hot-blast furnace 13 outlet pipe to be fixed with gas pipeline 15 between the tub 16 of discharging fume and links to each other, with the hot-blast temperature of flue gas adjustment hot-blast furnace 13 export, the other end fixedly connected with area sealing function's of the carbon feeding spiral 19 of keeping away from of continuous pyrolysis oven 1 feeding spiral 19.
Do the utility model discloses an optional technical scheme:
one end of the continuous pyrolysis furnace 1 far away from the carbon outlet tube 2 is fixedly connected with a feeding screw 19, and one end of the feeding screw 19 is connected with a bin 20. The feeding screw 19 keeps sealed when the material is conveyed into the continuous pyrolysis furnace 1, so that the inner container of the continuous pyrolysis furnace 1 is isolated from air.
Do the utility model discloses an optional technical scheme:
a sealing mechanism is fixedly arranged between the inner container of the continuous pyrolysis furnace 1 and the fixing covers at the two ends, and the connection between the continuous pyrolysis furnace 1 and the atmosphere is isolated.
Do the utility model discloses an optional technical scheme:
a furnace pipe and a heat preservation shell are fixedly arranged inside the continuous pyrolysis furnace 1, a cavity is formed between the furnace pipe and the heat preservation shell, the cavity is a hot air channel, and hot air is used for heating materials through a furnace wall.
Do the utility model discloses an optional technical scheme:
the oil outlet pipe 6 is fixedly provided with a valve and an oil outlet pump, the valve is positioned at one end of the oil outlet pipe 6 close to the oil collecting system 5, the high-boiling-point components are effectively collected after the gas enters the oil collecting system 5 through the valve, and the crude oil deposited in the oil collecting system 5 is pumped out through the oil outlet pump and is used after treatment.
Do the utility model discloses an optional technical scheme:
the oil receiving system 5 comprises a spray cooling tower and a cooling heat exchanger, the spray cooling tower is positioned below the cooling heat exchanger, high-boiling-point components of pyrolysis gas are liquefied and deposited through the spray cooling tower, organic matters which cannot be cooled, carbon dioxide and the like are mixed into non-condensable gas, and the non-condensable gas enters the purifying tower 9 through a tower top pipeline to be treated.
Do the utility model discloses an optional technical scheme:
the purifying tower 9 is an acid-removing purifying tower, an electric tar precipitator is fixedly arranged in the purifying tower 9, acid components of the non-condensable gas are removed through the purifying tower 9, and the non-condensable gas is subjected to electric tar precipitation to remove tar and then enters the gas holder 11 for storage.
As an optional technical solution of the utility model:
the number of the flue gas treatment systems 17 is three, each flue gas treatment system 17 comprises a cooling tower and two flue gas purification towers, and the two adjacent flue gas treatment systems 17 are connected with each other through a flue gas pipe 18.
This practical theory of operation: firstly, the wastes processed and crushed to be below 200mm in size are evenly fed into a continuous pyrolysis furnace 1 through a feeding screw 19, the materials are compressed to discharge air in the feeding screw 19, the connection between the environment in the furnace and the atmosphere is isolated, the materials in the continuous pyrolysis furnace 1 absorb heat transmitted by a furnace wall and are heated to 400-500 ℃, organic matters are gradually decomposed into gaseous micromolecules, residual carbon-containing residues, moisture is completely gasified and is mixed with pyrolysis gas, the pyrolysis gas keeps micro positive pressure under the high-temperature condition to be continuously discharged out of the continuous pyrolysis furnace 1 and enters an oil receiving system 5, the pyrolysis gas discharged out of the continuous pyrolysis furnace 1 is subjected to liquid spray cooling in the oil receiving system 5, high-boiling-point components are liquefied and deposited at the bottom of the tower and are pumped out through an oil outlet pump, the uncondensed pyrolysis gas then enters a cooling heat exchanger, the temperature of the gas at the outlet of the cooling heat exchanger is kept at about 40 ℃, organic matters with the boiling point of more than 40 ℃ and water are completely cooled and collected together, organic matters which can not be condensed at 40 ℃ and gases such as carbon dioxide are mixed together to form noncondensable gas, the noncondensable gas enters a purification tower 9, acid components of the noncondensable gas are removed in the purification tower 9, tar is removed through electric coke catching, the noncondensable gas enters a gas holder 11 for temporary storage, the purified noncondensable gas is pressurized and then sent into a hot blast stove 13 for combustion to generate high-temperature hot air with the temperature of more than 1100 ℃, the hot air temperature is adjusted to 700-900 ℃ through secondary air distribution of flue gas at the outlet of the hot blast stove 13, the hot air enters a cavity between a furnace liner and a heat preservation shell of the continuous pyrolysis furnace 1 to heat the continuous pyrolysis furnace 1, the temperature of the hot air heated by the continuous pyrolysis furnace 1 is about 400 ℃ after the hot air is discharged out of the main body of the continuous pyrolysis furnace 1, part of the hot blast furnace 13 is, one part of the purified pyrolysis gas is used by the continuous pyrolysis furnace 1, the rest is used for generating power or as system energy, pyrolysis residues are composed of inorganic substances such as silt, glass, ceramics and metal mixed with pyrolytic carbon and wastes, the inorganic substances are discharged from the continuous pyrolysis furnace 1 and then are separated into massive glass, ceramics and metal through screening, the metal is separated and recovered through specific gravity separation, the particulate matter enters a construction waste system for treatment, and the powdery matter is treated additionally.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (8)
1. The utility model provides a solid organic hazardous waste low temperature pyrolysis processing system, includes continuous pyrolysis oven (1), its characterized in that: the one end fixedly connected with of continuous pyrolysis stove (1) goes out carbon pipe (2) and discharging pipe (4), the one end fixedly connected with of going out carbon pipe (2) takes the play carbon system (3) of self sealss function, the one end fixedly connected with oil recovery system (5) of discharging pipe (4), the bottom fixedly connected with of oil recovery system (5) goes out oil pipe (6), the other end fixedly connected with crude oil tank (7) of oil pipe (6), the top fixedly connected with outlet duct (8) of oil recovery system (5), the one end fixedly connected with noncondensable gas purge column (9) of outlet duct (8), the top fixedly connected with blast pipe (10) of purge column (9), the one end fixedly connected with gas holder (11) of blast pipe (10), the bottom fixedly connected with blast pipe (12) of gas holder (11), the one end of blast pipe (12) is passed through back-fire relief device fixedly connected with hot-blast furnace (13), the one end fixedly connected with hot-blast main (14) of hot-blast furnace (13), the one end fixedly connected with of hot-blast main (14) is kept away from in continuous pyrolysis stove (1) tub (16) of discharging fume, the one end fixedly connected with flue gas processing system (17) of tub (16) of discharging fume, fixed connection air-blowing pipeline (15) are gone up in tub (16) of discharging fume, the one end of air-blowing pipeline (15) and the export fixed connection of hot-blast furnace (13), the feeding spiral (19) of the other end fixedly connected with area sealing function of carbon of keeping away from of continuous pyrolysis stove (1), the other end and feed bin (20) of feeding spiral (19) are connected.
2. The low temperature pyrolysis treatment system for solid organic hazardous waste according to claim 1, wherein:
one end of the continuous pyrolysis furnace (1) far away from the carbon outlet tube (2) is fixedly connected with a feeding screw (19) with a sealing function, and one end of the feeding screw (19) is fixedly connected with a bin (20).
3. The low temperature pyrolysis treatment system for solid organic hazardous waste according to claim 1, wherein:
the feeding screw (19) is a self-sealing screw, and a sealing mechanism is fixedly arranged between the inner container of the continuous pyrolysis furnace (1) and the fixed covers at the two ends of the furnace.
4. The low temperature pyrolysis treatment system for solid organic hazardous waste according to claim 1, wherein:
the inner part of the continuous pyrolysis furnace (1) is fixedly provided with a furnace pipe and a heat preservation shell, a cavity is formed between the furnace pipe and the heat preservation shell, and one end of the hot air pipe (14) is connected with a cavity inlet between the inner pipe of the continuous pyrolysis furnace (1) and the heat preservation sleeve.
5. The low temperature pyrolysis treatment system for solid organic hazardous waste according to claim 1, wherein:
the oil outlet pipe (6) is fixedly provided with a valve and an oil outlet pump, and the valve is positioned at one end of the oil outlet pipe (6) close to the oil collecting system (5).
6. The low temperature pyrolysis treatment system for solid organic hazardous waste according to claim 1, wherein:
the oil receiving system (5) comprises a spray cooling tower and a cooling heat exchanger, wherein the spray cooling tower is positioned below the cooling heat exchanger.
7. The low temperature pyrolysis treatment system for solid organic hazardous waste according to claim 1, wherein:
the purification tower (9) is an acid-removing purification tower, and an electric tar precipitator is fixedly arranged in the purification tower (9).
8. The low temperature pyrolysis treatment system for solid organic hazardous waste according to claim 1, wherein:
the device is characterized in that the number of the flue gas treatment systems (17) is three, a flue gas pipe (18) is fixedly connected between every two adjacent flue gas treatment systems (17), and the three flue gas treatment systems (17) are all connected with each other through the flue gas pipe (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921297306.2U CN210656798U (en) | 2019-08-12 | 2019-08-12 | Low-temperature pyrolysis treatment system for solid organic hazardous waste |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921297306.2U CN210656798U (en) | 2019-08-12 | 2019-08-12 | Low-temperature pyrolysis treatment system for solid organic hazardous waste |
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| Publication Number | Publication Date |
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| CN210656798U true CN210656798U (en) | 2020-06-02 |
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| CN201921297306.2U Active CN210656798U (en) | 2019-08-12 | 2019-08-12 | Low-temperature pyrolysis treatment system for solid organic hazardous waste |
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| CN (1) | CN210656798U (en) |
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- 2019-08-12 CN CN201921297306.2U patent/CN210656798U/en active Active
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