CN113481022B - Self-cleaning static rotary pyrolysis device - Google Patents
Self-cleaning static rotary pyrolysis device Download PDFInfo
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- CN113481022B CN113481022B CN202110785172.4A CN202110785172A CN113481022B CN 113481022 B CN113481022 B CN 113481022B CN 202110785172 A CN202110785172 A CN 202110785172A CN 113481022 B CN113481022 B CN 113481022B
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- 238000000197 pyrolysis Methods 0.000 title claims abstract description 72
- 238000004140 cleaning Methods 0.000 title claims abstract description 47
- 230000003068 static effect Effects 0.000 title claims abstract description 16
- 239000000571 coke Substances 0.000 claims abstract description 78
- 238000007599 discharging Methods 0.000 claims abstract description 41
- 238000010438 heat treatment Methods 0.000 claims abstract description 30
- 238000005192 partition Methods 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 claims description 13
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 6
- 239000003546 flue gas Substances 0.000 claims description 6
- 238000000605 extraction Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 15
- 239000002910 solid waste Substances 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 10
- 238000004939 coking Methods 0.000 abstract description 8
- 238000013461 design Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000005484 gravity Effects 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract 1
- 235000019198 oils Nutrition 0.000 description 27
- 239000010802 sludge Substances 0.000 description 18
- 238000005235 decoking Methods 0.000 description 7
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 239000010815 organic waste Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000019476 oil-water mixture Nutrition 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/10—Treatment of sludge; Devices therefor by pyrolysis
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B43/00—Preventing or removing incrustations
- C10B43/02—Removing incrustations
- C10B43/04—Removing incrustations by mechanical means
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B47/00—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion
- C10B47/18—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion with moving charge
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B47/00—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion
- C10B47/28—Other processes
- C10B47/32—Other processes in ovens with mechanical conveying means
- C10B47/40—Other processes in ovens with mechanical conveying means with endless conveying devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/40—Valorisation of by-products of wastewater, sewage or sludge processing
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Mechanical Engineering (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The embodiment of the invention provides a self-cleaning static rotary pyrolysis device which comprises a feeding hole, a heating pipe, a chain plate, a driving wheel, a driven wheel, a coke cleaning wheel, a scraper coke discharging machine, a scraper oil discharging machine, a partition plate, a coke discharging hole, a pyrolysis gas outlet and a tar outlet. When the device operates, the material falls into the link joint left side from the feed inlet, the link joint takes the material to remove from a left side to the right side, in the motion process, the heating pipe of link joint top constantly heats the material, make its organic component be heated and decomposed, the pyrolysis gas of production is discharged from pyrolysis gas outlet, the burnt piece of sticky wall that produces is constantly cleared up by the cleaning wheel that offsets with link joint downside outer wall, the scraper blade coke discharging machine that falls into the cleaning wheel below is carried to row burnt mouth and is discharged, the tar of production falls into the scraper blade oil drain machine of link joint below and is carried to tar outlet discharge under the action of gravity. The device has the advantages of simple and compact structural design, simple cleaning and maintenance, high automation degree and high coke cleaning effect, and is a high-efficiency and stable easy-coking organic solid waste pyrolysis device.
Description
Technical Field
The invention belongs to the technical field of organic waste treatment and utilization, and particularly relates to a self-cleaning static rotary pyrolysis device.
Background
The organic solid wastes such as sludge, oil sludge and the like are a large amount of organic wastes generated in production and life, are complex in component composition, generally have high water content and large oil content, contain a large amount of harmful components, and have resource and environment hazard attributes. It is necessary to develop an efficient method for treating and utilizing the solid wastes, so as to effectively recover the available resources in the components while realizing harmless treatment. In the traditional method, incineration and sanitary landfill are mainly adopted to treat organic solid wastes such as sludge and oil sludge, the resource yield is low, and the risk of secondary pollution exists. The pyrolysis method heats the organic solid waste under the anaerobic or anoxic condition to thermally decompose the organic components, and then condenses and pyrolyzes the volatile components to finally obtain a condensable oil-water mixture, non-condensable gas and solid residues.
In the development process of the organic solid waste pyrolysis technology, the key is the development of a stable and efficient pyrolysis device. Aiming at materials such as sludge, oil sludge and the like which have high viscosity and are easy to coke, the coking adhesion of the materials on the wall surface of a pyrolysis device is easy to occur in the use process of the traditional rotary kiln type or moving bed type pyrolysis device, so that the heat transfer efficiency or the operation of moving parts of the pyrolysis device is influenced, and the stability and the efficiency of the pyrolysis device are further reduced.
Therefore, the problem of wall sticking of materials such as sludge, oil sludge and the like in a pyrolysis device needs to be solved, and a sludge and oil sludge pyrolysis device capable of preventing coking or self-cleaning coking is developed so as to ensure efficient pyrolysis of easily-coked organic solid waste such as sludge, oil sludge and the like.
Disclosure of Invention
When carrying out pyrolysis treatment to organic solid wastes such as mud, fatlute to prior art, take place the material coking easily and adhere to the wall of pyrolysis device, and then lead to the technical problem that pyrolysis efficiency is low, provide a self-cleaning formula static gyration pyrolysis device, the succinct compactness of device structure, convenient operation, operation are stable, it is convenient, degree of automation is high to maintain, can effectively guarantee the high-efficient pyrolysis of easy coking organic solid wastes such as mud, fatlute.
In order to solve the technical problems, the embodiment of the invention provides a self-cleaning static rotary pyrolysis device, which comprises a feeding hole, a heating pipe, a chain plate, a driven wheel, a driving wheel, a coke cleaning wheel, a scraper coke discharging machine, a scraper oil discharging machine, a partition plate, a coke discharging hole, a pyrolysis gas outlet and a tar outlet; wherein:
the feed inlet sets up and leans on left position at pyrolysis device top, the feed inlet below left and right sides is provided with a plurality of horizontal parallel arrangement the heating pipe, the link joint is located the heating pipe below, link joint both ends inboard sets up respectively from the driving wheel with the action wheel, the link joint downside lean on left position be provided with the link joint offsets the coke cleaning wheel, the coke cleaning wheel below sets up scraper blade coke discharging machine, the left end of scraper blade coke discharging machine is aimed at the row burnt mouth, the right-hand member setting of scraper blade coke discharging machine the baffle, the baffle right side does scraper blade oil extraction machine, the right-hand member of scraper blade oil extraction machine is aimed at the tar export, and pyrolysis device top right side sets up pyrolysis gas export.
The term "a plurality" as used above means a number of 2 or more, i.e. a number of at least 2.
Preferably, the distance between any two adjacent heating pipes is equal except for the two heating pipes close to the feeding hole.
Preferably, high-temperature flue gas at the temperature of 600-.
Preferably, the lengths of the left end and the right end of the chain plate are larger than the distance between the heating pipes at the left end and the right end.
Preferably, the upper side of the chain plate is horizontally arranged.
Preferably, the coke cleaning wheel props against the lower side chain plate upwards, so that the included angle between the left side chain plate of the coke cleaning wheel and the horizontal plane is 4-25 degrees, and the included angle between the right side chain plate of the coke cleaning wheel and the horizontal plane is 1-5 degrees.
Preferably, a plurality of uniformly distributed conical coke breakers are arranged on the outer side of the coke cleaning wheel, and the included angle of the tops of the conical coke breakers is 120-150 degrees.
According to the technical scheme of the embodiment of the invention, viscous organic solid waste is pyrolyzed, the material falls into the upper side chain plate close to the left from the feed inlet, the chain plate drives the material to move from left to right, the material is continuously heated by the heating pipe above the chain plate in the movement process, so that organic components in the material are decomposed, volatile components generated by pyrolysis are discharged from the pyrolysis gas outlet at the right side of the top of the pyrolysis device, generated coke blocks adhered to the outer wall of the chain plate are continuously cleaned by the coke cleaning wheel abutting against the chain plate, the coke blocks fall into the scraper coke discharging machine below the left side of the chain plate and are conveyed to the coke discharging port to be discharged, and tar generated by condensation of the pyrolysis gas falls into the scraper oil discharging machine below the right side of the chain plate and is conveyed to the tar outlet to be discharged, and the device has the following beneficial effects:
1. the traditional pyrolysis device is abandoned, an external heating type heating mode is adopted, and a plurality of uniformly distributed heating pipes are arranged in the pyrolysis device to heat the viscous organic solid waste, so that the device has the advantages of small volume, uniform heating, convenient pyrolysis temperature regulation and control and high thermal efficiency;
2. aiming at the problem that organic solid wastes such as sludge, oil sludge and the like are easy to coke and adhere to a chain plate, the coke breaker is driven by the coke breaker to run in a reverse direction with the chain plate by arranging the coke cleaning wheel with the conical coke breaker to tightly abut against the chain plate, so that the coke breaker can continuously puncture coke blocks to enable the coke blocks to fall off;
3. the coke cleaning device is simple and reasonable in structural design and good in coke cleaning effect, and tar formed by condensation of pyrolysis gas easily adheres to the scraper, the movement resistance of the scraper is greatly increased, so that the coke cleaning effect is poor, the coke cleaning wheel is designed to upwards abut against the lower side chain plate, a certain included angle is formed between the lower side chain plate and the horizontal plane, and the tar adhered to the lower side chain plate can flow to the right side of the chain plate along the inclined plane, so that the tar is accumulated on the right side of the chain plate and falls into a scraper oil extractor below the right side under the action of gravity to be discharged;
3. aiming at a three-phase product generated by pyrolysis of viscous organic solid waste, a scraper coke discharging machine, a scraper oil discharging machine and corresponding product outlets are arranged, so that the effect of preliminarily separating pyrolysis products in different states is achieved, and the subsequent treatment of the pyrolysis products is facilitated;
4. the pyrolysis device has the advantages of exquisite and compact structural design, convenience in operation, stability in operation and high automation degree, and can effectively guarantee efficient pyrolysis of easy-coking organic solid wastes such as sludge and oil sludge.
Drawings
FIG. 1 is a schematic structural diagram of a self-cleaning static rotary pyrolysis apparatus provided in an embodiment of the present invention;
FIG. 2 is a schematic structural view of a decoking wheel in the self-cleaning static rotary pyrolysis apparatus shown in FIG. 1;
[ main component symbol description ]
1-a feed inlet; 2-heating a tube; 3-link joint; 4-driven wheel; 5-driving wheel; 6-coke cleaning wheel; 61-conical coke breaker; 7-scraper coke discharging machine; 8-scraper oil extractor; 9-a separator; 10-coke discharging port; 11-outlet of pyrolysis gas; 12-tar outlet.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
Aiming at the existing problems, the invention provides a self-cleaning static rotary pyrolysis device which is compact and simple in design, convenient to operate, stable in operation and high in automation degree, can effectively clean wall-sticking coke blocks generated in the pyrolysis process of easily coking organic solid wastes such as sludge and oil sludge, and effectively improves the pyrolysis efficiency.
In order to realize the technical scheme, as shown in fig. 1, an embodiment of the invention provides a self-cleaning static rotary pyrolysis device, which comprises a feed inlet 1, a plurality of heating pipes 2, a chain plate 3, a driven wheel 4, a driving wheel 5, a coke cleaning wheel 6, a scraper coke discharging machine 7, a scraper oil discharging machine 8, a partition plate 9, a coke discharging port 10, a pyrolysis gas outlet 11 and a tar outlet 12; wherein:
the feeding hole 1 is arranged at the left position of the top of the pyrolysis device; a plurality of heating pipes 2 which are horizontally arranged in parallel are arranged on the left side and the right side below the feeding hole 1, as an optional mode, the heating pipes 2 are positioned above the interior of the pyrolysis device and are uniformly arranged, high-temperature flue gas at 600-1000 ℃ is introduced into the heating pipes 2, and the high-temperature flue gas heats the heating pipes, so that the radiant heat of the high-temperature flue gas supplies heat to the pyrolysis device; the chain plate 3 is arranged in the middle below the heating pipes 2, the length of the left end and the right end of the chain plate 3 is larger than the distance between the heating pipes 2 at the left end and the right end, the driven wheel 4 and the driving wheel 5 are respectively arranged on the inner sides of the two ends of the chain plate 3, the driven wheel 4 and the driving wheel 5 are identical in size and height, so that the upper side of the chain plate 3 is horizontally arranged, and the driving wheel 5 rotates to drive the driven wheel 4 to rotate, so that the upper side of the chain plate 3 is driven to horizontally move from left to right; a decoking wheel 6 is arranged on the outer side of the lower part of the chain plate 3 close to the left and is abutted against the chain plate 3, and the decoking wheel 6 is abutted against the lower side chain plate upwards, so that the included angle between the left side chain plate of the decoking wheel 6 and the horizontal plane is 4-25 degrees, and the included angle between the right side chain plate of the decoking wheel 6 and the horizontal plane is 1-5 degrees; the scraper coke discharging machine 7 is arranged below the coke cleaning wheel 6, the scraper coke discharging machine 7 is horizontally arranged at the bottom of the pyrolysis device and is provided with a plurality of uniformly distributed vertical scrapers, and the scrapers move from right to left; the left end of the scraper coke discharging machine 7 is provided with the coke discharging port 10, and the coke discharging port 10 slightly extends to the position close to the inner side of the left end of the scraper coke discharging machine 7 so as to facilitate the discharge of coke blocks; the scraper oil discharger 8 is arranged on the right side of the scraper coke discharging machine 7, and the scraper oil discharger 8 and the scraper coke discharging machine 7 are arranged at the same horizontal height and are also provided with a plurality of uniformly distributed vertical scrapers; the right side of the scraper oil extractor 8 is provided with the tar outlet 12, and the tar outlet 12 slightly extends to the position close to the inner side of the right end of the scraper oil extractor 8 so as to facilitate the discharge of tar; the partition plate 9 is arranged between the scraper coke discharging machine 7 and the scraper oil discharging machine 8, the partition plate 9 separates the scraper coke discharging machine 7 from the scraper oil discharging machine 8, and the height of the partition plate 9 is greater than that of the scraper coke discharging machine 7 and that of the scraper oil discharging machine 8; and the pyrolysis gas outlet 11 is arranged on the right side of the top of the pyrolysis device.
As shown in fig. 2, a plurality of uniformly distributed conical coke breakers 61 are further arranged on the outer side of the coke cleaning wheel 6, and the included angle of the tops of the conical coke breakers 61 is 120-150 °.
The specific use method of the self-cleaning static rotary pyrolysis device is as follows:
firstly, a driving wheel is started to rotate, the driving wheel drives a driven wheel to rotate, a chain plate starts to continuously operate, high-temperature flue gas at the temperature of 600-1000 ℃ is introduced into a heating pipe, a pyrolysis device is preheated to a set pyrolysis temperature, a coke cleaning wheel, a scraper coke discharging machine, a scraper oil discharging machine and a feeding device are started, a material falls into the left position of the upper side chain plate from a feeding hole, the chain plate drives the material to move from left to right, the material is continuously heated by the heating pipe above the chain plate in the movement process, thereby make the organic component in the material take place to decompose, the pyrolysis gas export discharge on pyrolysis device top right side is followed to the volatile component that the pyrolysis produced, the adhesion that the pyrolysis produced is constantly cleared up by the decoking wheel of the left position below the link joint at the burnt piece of link joint outer wall, falls into the scraper blade coke discharging machine of decoking wheel below and is carried to row burnt mouth and discharge, the tar that the pyrolysis gas condensation produced falls into the scraper blade oil drain machine of link joint right side below and carries to the tar export discharge.
For the embodiments of the present invention, the common general knowledge of the known specific structures and characteristics in the schemes is not described too much; the embodiments are described in a progressive manner, technical features related to the embodiments can be combined with each other on the premise of not conflicting with each other, and the same and similar parts among the embodiments can be referred to each other.
In the description of the present invention, the terms "in", "upper", "lower", "inner", "outer", "left", "right", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and should not be construed as limiting the present invention. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (5)
1. The utility model provides a static gyration pyrolysis device of self-cleaning formula, its characterized in that includes feed inlet (1), heating pipe (2), link joint (3), follows driving wheel (4), action wheel (5), coke cleaning wheel (6), scraper blade coke discharging machine (7), scraper blade oil drain machine (8), baffle (9), row's burnt mouth (10), pyrolysis gas export (11) and tar export (12), wherein:
the feeding hole (1) is arranged at the left position of the top of the pyrolysis device, the heating pipes (2) are horizontally arranged on the left side and the right side of the lower part of the feeding hole (1), the chain plate (3) is arranged below the heating pipes (2), the driven wheels (4) and the driving wheel (5) are respectively arranged on the inner sides of the two ends of the chain plate (3), the upper side of the chain plate (3) is horizontally arranged, the coke cleaning wheel (6) which is abutted against the chain plate (3) is arranged at the left position of the lower side of the chain plate (3), the coke cleaning wheel (6) upwards butts against the lower chain plate, so that the included angle between the chain plate at the left side of the coke cleaning wheel and the horizontal plane is 4-25 degrees, the included angle between the chain plate at the right side of the coke cleaning wheel and the horizontal plane is 1-5 degrees, a plurality of uniformly distributed conical coke breakers (61) are arranged on the outer side of the coke cleaning wheel (6), the top included angle between the conical breakers (61) is 120-150 degrees, coke cleaning wheel (6) below sets up scraper blade coke discharging machine (7), the left end of scraper blade coke discharging machine (7) is aimed at arrange burnt mouth (10), the right-hand member of scraper blade coke discharging machine (7) sets up baffle (9), baffle (9) right side does scraper blade oil extraction machine (8), the right-hand member of scraper blade oil extraction machine (8) is aimed at tar export (12), and pyrolysis device top right side sets up pyrolysis gas export (11).
2. A self-cleaning static rotary pyrolysis apparatus according to claim 1 wherein the spacing between any two adjacent heating tubes (2) is equal except for two heating tubes (2) near the inlet.
3. The self-cleaning static rotary pyrolysis device as claimed in claim 1, wherein the heating tube (2) is internally introduced with high temperature flue gas at 600-.
4. A self-cleaning static rotary pyrolysis apparatus according to claim 1, characterized in that the length of the left and right ends of the chain plate (3) is larger than the distance between the heating pipes (2) at the left and right ends.
5. A self-cleaning static rotary pyrolysis apparatus according to claim 1 wherein the scraper coke discharger (7) and the scraper oil discharger (8) are provided with a plurality of vertical scrapers which are evenly distributed, and the height of the partition (9) is greater than that of the vertical scrapers.
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