CN212425823U - Two-stage pyrolysis treatment system for oil-containing sludge - Google Patents
Two-stage pyrolysis treatment system for oil-containing sludge Download PDFInfo
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- CN212425823U CN212425823U CN202022006680.1U CN202022006680U CN212425823U CN 212425823 U CN212425823 U CN 212425823U CN 202022006680 U CN202022006680 U CN 202022006680U CN 212425823 U CN212425823 U CN 212425823U
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Abstract
The utility model discloses an oily sludge two-stage pyrolysis treatment system, including pyrolysis oven, charge-in system, conveyer belt, one-level heating furnace, second grade heating furnace, one-level result collection device, second grade result collection device and residue collection device, charge-in system set up in the head end of pyrolysis oven, the conveyer belt set up in the pyrolysis oven, charge-in system with the head end of conveyer belt is relative for to on the conveyer belt feeding, the tail end of charge-in system is one-level heating furnace and second grade heating furnace in proper order, the conveyer belt passes through the one-level heating furnace with after the second grade heating furnace the tail end of pyrolysis oven extends, and the tail end of conveying end is relative with the residue collection device of pyrolysis oven tail end; the utility model discloses can be through the transfer rate of adjustment conveyer belt, control oiliness mud is in the pyrolysis time of one-level, second grade pyrolysis oven (generally for 1 hour), reaches the purpose of handling oiliness mud in batches.
Description
Technical Field
The utility model relates to a petrochemical industry waste disposal technical field especially relates to an oiliness mud two-stage pyrolysis treatment system.
Background
In the process of oil exploitation, refining and transportation, a large amount of oily sludge is generated, the oily sludge is one of the most main wastes in petrochemical enterprises, about 5 tons of oily sludge is generated every 1000 tons of oil is estimated to be produced, the oily sludge has the characteristics of wide source, large yield and serious pollution, but a large amount of oil phase components are contained in the oily sludge, the pyrolysis method is an effective method for treating the oily sludge, the oily sludge is pyrolyzed by heating to produce pyrolysis gas, the produced pyrolysis gas is cooled into pyrolysis oil and non-condensable gas after being condensed, the pyrolysis oil can be recycled, and a large amount of H containing oil in the non-condensable gas is simultaneously contained in the oil to be recycled2，C2H2And the residue after cracking has better porosity and specific surface area after cracking by organic gases, and can be used for preparing the activated carbon.
The current method for cracking the oily sludge mostly uses programmed heating (slow pyrolysis), namely the oily sludge is placed in a heating furnace to be heated to a target temperature at a certain heating rate, and pyrolysis products are collected while heating. The conventional oily sludge pyrolysis device slowly heats oily sludge to achieve the purpose of pyrolysis treatment, and because the heating time is too long due to temperature programming (usually 10 ℃/min), the pyrolysis efficiency is low, and the oily sludge cannot be treated in a large scale in batches.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an oily sludge two-stage pyrolysis treatment system to solve the problem that above-mentioned prior art exists, can be through the transfer rate of adjustment conveyer belt, control oily sludge in the pyrolysis time of one-level, second grade pyrolysis oven (generally for 1 hour), reach the purpose of handling oily sludge in batches.
In order to achieve the above object, the utility model provides a following scheme:
the utility model provides an oily sludge two-stage pyrolysis treatment system, including pyrolysis oven, charge-in system, conveyer belt, one-level heating furnace, second grade heating furnace, one-level result collection device, second grade result collection device and residue collection device, charge-in system set up in the head end of pyrolysis oven, the conveyer belt set up in the pyrolysis oven, charge-in system with the head end of conveyer belt is relative for to on the conveyer belt feeding, the tail end of charge-in system is one-level heating furnace and second grade heating furnace in proper order, the conveyer belt passes through the one-level heating furnace with after the second grade heating furnace the tail end of pyrolysis oven extends, and the tail end of conveying end is relative with the residue collection device of pyrolysis oven tail end;
the primary product collecting device is arranged at the top of the primary heating furnace and comprises a primary exhaust pipe communicated with the interior of the pyrolysis furnace, and a primary condensing device and an oil-water separating device which are sequentially arranged at the tail end of the primary exhaust pipe;
the secondary product collecting device is arranged at the top of the secondary heating furnace and comprises a secondary exhaust pipe communicated with the interior of the pyrolysis furnace, and a secondary condensing device, a compressor and a high-pressure steel bottle which are sequentially arranged at the tail end of the secondary exhaust pipe.
Preferably, the feed system includes last feed bin, deoxidation storehouse and the feeding storehouse that sets gradually by top to bottom, one side in deoxidation storehouse is provided with air inlet and gas vent, the feeding storehouse is located the top of conveyer belt, the cavity in feeding storehouse is relative with the transfer surface of conveyer belt, the discharge gate department in feeding storehouse is provided with the feeding door, the feeding door is connected with the starting drive electricity.
Preferably, between the first-stage heating furnace and the second-stage heating furnace, the tail end of the second-stage heating furnace is provided with an electric gate, and the electric gate is connected with a starting device.
Preferably, the heating source of the first-stage heating furnace and the second-stage heating furnace is a heating wire.
Preferably, the primary heating furnace and the secondary heating furnace are both provided with thermometers.
Preferably, the primary heating furnace and the secondary heating furnace are both provided with heat insulation layers.
Preferably, the debris collection device is disposed in a basin.
The utility model discloses following beneficial technological effect has been gained for prior art:
the utility model provides an oily sludge two-stage pyrolysis treatment system puts into oily sludge and carries out the pyrolysis in the pyrolysis oven of deciding the temperature, has saved the programming time, can be through the transfer rate of adjustment conveyer belt, and control oily sludge reaches the purpose of batch processing oily sludge at the pyrolysis time (generally for 1 hour) of one-level, second grade pyrolysis oven, the utility model discloses utilize the oily sludge two-stage, retrieve pyrolysis oil and pyrolysis gas respectively, the utility model discloses but batch processing oily sludge, the pyrolysis is efficient.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of a two-stage pyrolysis treatment system for oil-containing sludge of the present invention;
in the figure: 1-feeding bin, 2-deoxygenation bin, 3-air inlet, 4-air outlet, 5-feeding bin, 6-feeding bin gate, 7-starting device, 8-horizontal conveyor belt, 9-first-stage heating furnace, 10-heat insulation layer, 11-heating wire, 12-second-stage heating furnace, 13-first-stage air outlet, 14-first-stage condensing device, 15-oil-water separating device, 16-second-stage air outlet, 17-second-stage condensing device, 18-compressor, 19-high-pressure steel cylinder, 20-thermometer, 21-residue collecting device, 22-water tank, 23-oil-containing sludge and 24-pyrolyzing furnace.
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.
The utility model aims at providing an oiliness mud two-stage pyrolysis treatment system to solve the problem that prior art exists.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Two-stage pyrolysis treatment system of oily sludge in this embodiment, as shown in fig. 1, including pyrolysis oven 24, feed system, conveyer belt 8, one-level heating furnace 9, second grade heating furnace 12, one-level result collection device, second grade result collection device and residue collection device 21, feed system sets up in pyrolysis oven 24's head end, conveyer belt 8 sets up in pyrolysis oven 24, feed system is relative with conveyer belt 8's head end, be used for feeding on to conveyer belt 8, feed system's tail end is one-level heating furnace 9 and second grade heating furnace 12 in proper order, conveyer belt 8 extends to pyrolysis oven 24's tail end after passing through one-level heating furnace 9 and second grade heating furnace 12, and the tail end of conveying end is relative with the residue collection device 21 of pyrolysis oven 24 tail end, residue collection device 21 sets up in pond 22, pond 22 is used for the cooling.
The feeding system comprises an upper feed bin 1, a deoxidizing bin 2 and a feeding bin 5 which are sequentially arranged from top to bottom, wherein one side of the deoxidizing bin 2 is provided with an air inlet 3 and an air outlet 4, the feeding bin 5 is located at the top end of a conveyor belt 8, the cavity of the feeding bin 5 is opposite to the conveying surface of the conveyor belt 8, a feed bin door 6 is arranged at the position of a discharge outlet of the feeding bin 5, and the feed bin door 6 is electrically connected with a starting device 7.
The primary product collecting device is arranged at the top of the primary heating furnace 9 and comprises a primary exhaust pipe communicated with the interior of the pyrolysis furnace 24, and a primary condensing device 14 and an oil-water separating device 15 which are sequentially arranged at the tail end of the primary exhaust pipe, wherein the primary exhaust pipe is connected with a primary exhaust port 13 on the primary heating furnace 9;
the secondary product collecting device is arranged at the top of the secondary heating furnace 12 and comprises a secondary exhaust pipe communicated with the inside of the pyrolysis furnace 24, and a secondary condensing device 17, a compressor 18 and a high-pressure steel cylinder 19 which are sequentially arranged at the tail end of the secondary exhaust pipe, and the secondary exhaust pipe is connected with a secondary exhaust port 16 on the secondary heating furnace 12.
In this embodiment, the heating source of the first-stage heating furnace 9 and the second-stage heating furnace 12 is a heating wire 11; the primary heating furnace 9 and the secondary heating furnace 12 are both provided with thermometers 20; the first-stage heating furnace 9 and the second-stage heating furnace 12 are both provided with heat preservation layers 10.
The working process is as follows: firstly, oily sludge 23 is placed into an upper material bin 1 and passes through a deoxygenation bin 2, so that the oily sludge 23 is in an anaerobic state when entering a pyrolysis system, combustion in a pyrolysis furnace 24 is avoided, nitrogen is injected into an air inlet 3, the materials are completely in an inert gas environment in the deoxygenation bin 2, the oily sludge 23 enters a material inlet bin 5 after being deoxygenated, a starting device 7 controls to open a material inlet bin door 6, the oily sludge 23 enters a primary heating furnace 9 (the temperature is 450-. After the first-stage pyrolysis is finished, the oily sludge 23 enters a second-stage pyrolysis furnace (the temperature is 750-. In the oil-containing sludge 23 and residue collection device 21 after the reaction is finished, the water tank 22 is used for cooling.
The utility model discloses put oily sludge fast under certain high temperature, the pyrolysis oil quality of retrieving is almost the same with temperature programming (slow pyrolysis), but on this basis, usable conveyer belt 8The devices transport the oily sludge 23 to the pyrolysis furnace in batches for pyrolysis, so that the pyrolysis efficiency is improved, the oily sludge 23 sequentially passes through the two pyrolysis furnaces with different temperatures through the conveyor belt 8, a large amount of pyrolysis oil can be recovered in the primary pyrolysis process (450 plus 500 ℃), and a large amount of non-condensable gas (rich in H) can be recovered in the secondary pyrolysis process (750 plus 800 ℃)2、C2H2Etc.).
The utility model discloses the principle and the implementation mode of the utility model are explained by applying the concrete examples, and the explanation of the above examples is only used for helping to understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present description should not be construed as a limitation of the present invention.
Claims (7)
1. The utility model provides an oily sludge two-stage pyrolysis processing system which characterized in that: the automatic feeding device comprises a pyrolysis furnace, a feeding system, a conveyor belt, a primary heating furnace, a secondary heating furnace, a primary product collecting device, a secondary product collecting device and a residue collecting device, wherein the feeding system is arranged at the head end of the pyrolysis furnace, the conveyor belt is arranged in the pyrolysis furnace, the feeding system is opposite to the head end of the conveyor belt and is used for feeding materials onto the conveyor belt, the tail end of the feeding system sequentially comprises the primary heating furnace and the secondary heating furnace, the conveyor belt extends to the tail end of the pyrolysis furnace after passing through the primary heating furnace and the secondary heating furnace, and the tail end of the conveying end is opposite to the residue collecting device at the tail end of the pyrolysis furnace;
the primary product collecting device is arranged at the top of the primary heating furnace and comprises a primary exhaust pipe communicated with the interior of the pyrolysis furnace, and a primary condensing device and an oil-water separating device which are sequentially arranged at the tail end of the primary exhaust pipe;
the secondary product collecting device is arranged at the top of the secondary heating furnace and comprises a secondary exhaust pipe communicated with the interior of the pyrolysis furnace, and a secondary condensing device, a compressor and a high-pressure steel bottle which are sequentially arranged at the tail end of the secondary exhaust pipe.
2. The two-stage pyrolysis treatment system for oily sludge according to claim 1, characterized in that: the feeding system comprises an upper feed bin, an oxygen removal bin and a feeding bin which are sequentially arranged from the top to the bottom, wherein an air inlet and an air outlet are formed in one side of the oxygen removal bin, the feeding bin is located at the top end of the conveyor belt, a cavity of the feeding bin is opposite to the conveying surface of the conveyor belt, a feed bin door is arranged at the position of a discharge outlet of the feeding bin, and the feed bin door is electrically connected with the starting device.
3. The two-stage pyrolysis treatment system for oily sludge according to claim 1, characterized in that: between the first-stage heating furnace and the second-stage heating furnace, the tail end of the second-stage heating furnace is provided with an electric gate, and the electric gate is connected with a starting device.
4. The two-stage pyrolysis treatment system for oily sludge according to claim 1, characterized in that: the heating source of the first-stage heating furnace and the heating source of the second-stage heating furnace are heating wires.
5. The two-stage pyrolysis treatment system for oily sludge according to claim 1, characterized in that: the primary heating furnace and the secondary heating furnace are both provided with thermometers.
6. The two-stage pyrolysis treatment system for oily sludge according to claim 1, characterized in that: and the primary heating furnace and the secondary heating furnace are both provided with heat-insulating layers.
7. The two-stage pyrolysis treatment system for oily sludge according to claim 1, characterized in that: the residue collection device is arranged in the water pool.
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| CN202022006680.1U CN212425823U (en) | 2020-09-15 | 2020-09-15 | Two-stage pyrolysis treatment system for oil-containing sludge |
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| CN202022006680.1U CN212425823U (en) | 2020-09-15 | 2020-09-15 | Two-stage pyrolysis treatment system for oil-containing sludge |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111977931A (en) * | 2020-09-15 | 2020-11-24 | 中国石油大学(华东) | Two-stage pyrolysis treatment system for oil-containing sludge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111977931A (en) * | 2020-09-15 | 2020-11-24 | 中国石油大学(华东) | Two-stage pyrolysis treatment system for oil-containing sludge |
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