CN108913188B - Ash discharging device for acrylic cracking furnace - Google Patents
Ash discharging device for acrylic cracking furnace Download PDFInfo
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- CN108913188B CN108913188B CN201810966444.9A CN201810966444A CN108913188B CN 108913188 B CN108913188 B CN 108913188B CN 201810966444 A CN201810966444 A CN 201810966444A CN 108913188 B CN108913188 B CN 108913188B
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- Prior art keywords
- ash discharging
- main cylinder
- ash
- cylinder body
- curved surface
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- 238000007599 discharging Methods 0.000 title claims abstract description 47
- 238000005336 cracking Methods 0.000 title claims abstract description 28
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 43
- 239000002893 slag Substances 0.000 claims abstract description 35
- 230000007246 mechanism Effects 0.000 claims abstract description 29
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 6
- 238000000197 pyrolysis Methods 0.000 claims description 6
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 2
- 235000017491 Bambusa tulda Nutrition 0.000 claims 2
- 241001330002 Bambuseae Species 0.000 claims 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 2
- 239000011425 bamboo Substances 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 3
- 238000003303 reheating Methods 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000003872 anastomosis Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/30—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
- C07C67/333—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by isomerisation; by change of size of the carbon skeleton
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention discloses an ash discharging device for an acrylic cracking furnace, which comprises a main cylinder body extending leftwards and rightwards, wherein an air inlet slag port is formed in the upper part of the right end of the main cylinder body, a spiral feeder is arranged in the main cylinder body, a conical ash discharging slag port is formed in the lower part of the cylinder wall of the main cylinder body, a curved surface sealing cover which is matched with the ash discharging slag port and can be opened and closed is arranged at the ash discharging slag port, the curved surface sealing cover is connected with a driving mechanism, and an ash receiving hopper is arranged below the ash discharging slag port. The furnace body can be opened at about 180 ℃ to carry out ash discharging work, and the furnace body still keeps higher temperature after the ash discharging work is finished, so that the reheating energy is greatly saved, the working efficiency is improved, and the production cost is saved; particularly, under the condition of starting up 8 to 16 cracking furnaces at the same time, a large amount of manpower and material resources are saved, and the centralized treatment of ash residues is more facilitated.
Description
Technical Field
The invention relates to the technical field of ash discharging devices, in particular to an ash discharging device for an acrylic cracking furnace.
Background
When the chemical industry cracks organic matters, substances and impurities which cannot be completely cracked in the cracking furnace are carbonized to form ash residues under the action of high temperature, and the ash residues must be cleaned regularly to ensure the normal operation of equipment. With the progress of technology, the cracking furnace in the chemical cracking industry is basically in the form of a converter. The central axes of two ends of the converter are provided with a through pipe which is movably and hermetically connected and is used as a feeding device, a gas outlet device and a clinker discharging device. However, each cracking furnace which continuously works generally needs to clean ash residues for about two days, and the cracking furnace is frequent in work, high in labor intensity, clean and sanitary and difficult to guarantee.
The existing general ash removal method is to manually remove the flange sealing cover connected by the tee joint to remove ash, and the ash removal method can be performed after long-time cooling to normal temperature, and has the problems of high labor intensity, low efficiency, serious energy loss, large number of furnaces, production progress delay and the like. The prior art principles and limitations are now analyzed in conjunction with the drawings.
As shown in figure 1, the ash discharging device is a cross section view of the prior common practice, a three-way flange joint is connected below the connecting cylinder body to serve as an ash discharging hole, a screw feeder is arranged in the middle, a circular plate sealing cover sealed by bolts is arranged below the connecting cylinder body, and when ash is discharged, a spiral sheet can be used for transferring ash in the cracking furnace to the ash discharging hole through the spiral sheet, and ash can be removed after the sealing cover is removed. Because of the structure, the two cylindrical intersecting parts form dead angles, ash is deposited at the interfaces in the production process, the spiral device cannot scrape and remove the ash, when the temperature is equal to the normal temperature, the ash is frozen into hard caking, and sometimes even the sealing cover and the three-way joint are adhered together, so that the ash can only be slowly chiseled by a chisel, and the waste of time and labor is removed.
For the problems in the related art, no effective solution has been proposed at present.
Disclosure of Invention
Aiming at the technical problems in the related art, the invention provides an ash discharging device for an acrylic cracking furnace, which is provided with a tee joint, wherein a tapered ash discharging port is directly formed on the cylinder wall (or the cylinder wall is thickened), a curved surface-shaped metal body which is consistent with the shape of the ash discharging port is adopted as a curved surface sealing cover, so that the taper and the precision of a sealing surface are ensured, and the sealing effect is achieved; and secondly, the driving mechanism is used for automatically opening and closing the curved surface sealing cover, and the locking mechanism is additionally arranged for locking and reinforcing the closed curved surface sealing cover, so that the sealing is ensured and the looseness in the process is prevented.
In order to achieve the technical purpose, the technical scheme of the invention is realized as follows:
the ash discharging device for the acrylic cracking furnace comprises a main cylinder body which extends left and right, an air inlet slag port is formed in the upper portion of the right end of the main cylinder body, a spiral feeder is arranged in the main cylinder body, a conical ash discharging slag port is formed in the lower portion of the cylinder wall of the main cylinder body, a curved surface sealing cover which is matched with the ash discharging slag port and can be opened and closed is arranged at the ash discharging slag port, a driving mechanism is connected with the curved surface sealing cover, and an ash receiving hopper is arranged below the ash discharging slag port.
Further, a sealing plate is arranged on the right end face of the main cylinder body, and the air inlet slag hole is formed in the sealing plate and the pipe wall of the main cylinder body.
Further, the spiral feeder comprises a rotating shaft, a spiral sheet is fixedly arranged on the rotating shaft, the rotating shaft is connected with a driving motor, and the driving motor is fixedly connected to the left end of the main cylinder body.
Further, the driving mechanism comprises a telescopic power device, one end of a lever is hinged to the power device, the other end of the lever is fixedly connected with the curved surface sealing cover, the power device is hinged to a supporting plate fixedly arranged on the outer side of the wall of the main cylinder body, and a fulcrum of the lever is hinged to the supporting plate.
Further, a locking mechanism corresponding to the curved sealing cover is arranged outside the main cylinder body.
Further, the locking mechanism comprises a telescopic power device, the power device is hinged to one ends of two levers respectively, the other ends of the two levers are respectively provided with a clamping part corresponding to the curved surface sealing cover, the two levers are symmetrically arranged around the main cylinder body, the power device is located right above the main cylinder body, the power device is fixedly connected with a supporting plate fixedly arranged on the outer side of the cylinder wall of the main cylinder body, and the supporting point of the lever is hinged to the supporting plate.
Further, the power device comprises an electric cylinder, an air cylinder or an oil cylinder.
Further, the main cylinder body is communicated with a flange circular tube positioned above the main cylinder body, and the flange circular tube is connected with a condenser.
The invention has the beneficial effects that: the technical defect of the original ash discharging device of the cracking furnace is changed, a plurality of problems of long-time cooling and manual operation are changed, the ash discharging device can be started at about 180 ℃ to perform ash discharging work, the furnace body still maintains a higher temperature after the ash discharging device is cleaned, the reheating energy is greatly saved, the working efficiency is improved, and the production cost is saved; particularly, under the condition of starting up 8 to 16 cracking furnaces at the same time, a large amount of manpower and material resources are saved, and the centralized treatment of ash residues is more facilitated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed 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 other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a conventional ash discharging device for an acrylic acid cracking furnace;
FIG. 2 is a cross-sectional view of an ash discharging device for an acrylic acid cracking furnace according to an embodiment of the present invention;
FIG. 3 is a schematic view of a locking mechanism according to an embodiment of the present invention;
fig. 4 is a schematic view of a curved seal cap according to an embodiment of the present invention.
In the figure:
1. a main cylinder; 2. a screw feeder; 3. a slag outlet; 4. a curved surface sealing cover; 5. receiving an ash bucket; 6. a driving mechanism; 7. a driving motor; 8. a locking mechanism; 9. a flange round tube; 10. and a slag inlet.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the invention, fall within the scope of protection of the invention.
As shown in fig. 2-4, the ash discharging device for the acrylic cracking furnace according to the embodiment of the invention comprises a main cylinder body 1 extending leftwards and rightwards, wherein an air inlet slag port 10 is formed in the upper part of the right end of the main cylinder body 1, a screw feeder 2 is arranged in the main cylinder body 1, a conical ash discharging port 3 is formed in the lower part of the cylinder wall of the main cylinder body 1, a curved surface sealing cover 4 which is matched with the ash discharging port 3 and can be opened and closed is arranged at the ash discharging port 3, a driving mechanism 6 is connected with the curved surface sealing cover 4, and an ash receiving hopper 5 is arranged below the ash discharging port 3.
In a specific embodiment of the present invention, a sealing plate is disposed on the right end surface of the main cylinder 1, and the slag inlet 10 is formed on the sealing plate and the wall of the main cylinder 1.
In a specific embodiment of the present invention, the screw feeder 2 includes a rotating shaft, on which a screw is fixedly disposed, and the rotating shaft is connected with a driving motor 7, and the driving motor 7 is fixedly connected to the left end of the main cylinder 1.
In one embodiment of the present invention, the driving mechanism 6 includes a telescopic power device, the power device is hinged with one end of a lever, the other end of the lever is fixedly connected with the curved surface sealing cover 4, the power device is hinged with a supporting plate fixedly arranged on the outer side of the wall of the main cylinder 1, and the fulcrum of the lever is hinged with the supporting plate.
In a specific embodiment of the present invention, a locking mechanism 8 corresponding to the curved sealing cover 4 is further disposed outside the main cylinder 1.
In a specific embodiment of the present invention, the locking mechanism 8 includes a telescopic power device, the power devices are respectively hinged to one ends of two levers, the other ends of the two levers are respectively provided with a clamping portion corresponding to the curved sealing cover 4, the two levers are symmetrically arranged in front and back directions with respect to the main cylinder 1, the power device is located right above the main cylinder 1, the power device is fixedly connected with a supporting plate fixed on the outer side of the cylinder wall of the main cylinder 1, and a fulcrum of the lever is hinged with the supporting plate.
In one embodiment of the invention, the power means comprises an electric cylinder, an air cylinder or an oil cylinder.
In one embodiment of the present invention, the main cylinder 1 is communicated with a flange round pipe 9 above the main cylinder, and the flange round pipe 9 is connected with a condenser.
In order to facilitate understanding of the above technical solutions of the present invention, the following describes the above technical solutions of the present invention in detail by a specific usage manner.
The fixed connection mode can adopt conventional technical means such as welding, bolt connection and the like.
As shown in fig. 2, a spiral feeder 2 is installed in the main cylinder 1, the right end face of the main cylinder 1 is sealed, the upper portion of the right end is cut open to serve as an air inlet slag hole 10, the left end of the main cylinder 1 is provided with a driving motor (a pneumatic motor or a hydraulic motor or the like can be adopted) 7, the spiral feeder 2 can be driven to rotate in a required direction, a slag outlet 3 with a taper is arranged below the cylinder wall of the main cylinder 1, the diameter of the upper portion of the slag outlet 3 is smaller than the diameter of the lower portion of the slag outlet 3, the slag outlet 3 is matched with a curved surface sealing cover 4, the slag outlet 3 is opened and closed under the action of a driving mechanism 6, and a slag receiving hopper 5 is arranged below the slag outlet 3 and used for uniformly cleaning a slag access pipeline. The upper part of the main cylinder body 1 is provided with a flange round pipe 9 communicated with the main cylinder body and used for introducing pyrolysis gas into a condenser. The locking mechanism 8 is arranged on the wall of the middle cylinder opposite to the ash and slag outlet 3, and can lock and lock the curved surface sealing cover 4 under the action of external power, so that the sealing is ensured, and cracking gas and ash slag are not leaked in operation.
The right end of the cylinder body 1 extends into the cracking furnace from the flange round pipe 9, and ash and cracking gas can enter the main cylinder body 1 through the air inlet slag port 10.
The radial rotating surface of the spiral sheet on the rotating shaft of the spiral feeder 2 is in tangential fit with the inner wall of the cylinder body 1, and ash can be thoroughly scraped during axial rotation and pushed to the ash outlet 3 for discharging.
As shown in fig. 3, the locking mechanism 8 is a set of push-pull force conversion mechanism arranged on the main cylinder body 1 and is used for realizing the locking function after the curved surface sealing cover 4 is basically closed, and the locking mechanism 8 is difficult to ensure that the sealing of the curved surface sealing cover 4 is continuously kept due to the resistance arm length of the lever in the driving mechanism 6, and is suitable for the rapid opening and closing action of the curved surface sealing cover 4, and the locking force of the locking mechanism 8 is large.
As shown in fig. 4, the inner curved surface of the curved surface cover 4 is a cylindrical curved surface, and is basically consistent with the curved surface of the inner wall of the main cylinder 1, i.e. the curved surface cover 4 and the main cylinder 1 together form a cylindrical structure after being closed; the curved surface sealing cover 4 is matched with the ash and slag outlet 3, and the sealing surface at the contact position of the curved surface sealing cover 4 and the ash and slag outlet 3 has taper, so that the sealing is ensured and the mutual anastomosis is facilitated.
The drive mechanism 6 and the locking mechanism 8 may be connected to a controller to enable automation of ash operation.
When the device is specifically used, ash discharging is carried out when the temperature reaches about 180 ℃, ash and pyrolysis gas in a pyrolysis furnace enter the main cylinder 1 through the air inlet slag port 10, the spiral feeder 2 drives the ash and the pyrolysis gas to move leftwards, the pyrolysis gas enters the condenser through the flange round tube 9, and the ash gradually moves to the ash outlet port 3 and is accumulated therein (corresponding baffles can be arranged to prevent the ash from continuously moving leftwards); after a period of time, the locking mechanism 8 acts to release the locking state of the curved surface sealing cover 4, the driving mechanism 6 acts, the curved surface sealing cover 4 is opened, ash drops from the ash outlet 3 and falls into the ash receiving hopper 5, and therefore the ash discharging function is achieved.
In summary, by means of the technical scheme, the technical defect of the ash discharging device of the original cracking furnace is overcome, the problems of long-time cooling and manual operation are solved, and the automatic operation can be realized particularly in the case of simultaneous production of a large number of cracking furnaces (more than 8), so that the energy source can be greatly saved, the efficiency is improved, a large amount of manpower and material resources are saved, and the centralized processing of ash is facilitated.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (6)
1. The utility model provides an ash discharging device for ya keli pyrolysis furnace, includes main barrel (1) that extends about, inlet slag mouth (10) have been seted up on the right-hand member upper portion of main barrel (1), be provided with screw feeder (2) in main barrel (1), its characterized in that, conical ash discharging slag mouth (3) have been seted up to the section of thick bamboo wall lower part of main barrel (1), ash discharging slag mouth (3) department is provided with rather than matched with and curved surface sealed lid (4) that can open and shut, curved surface sealed lid (4) are connected with actuating mechanism (6), ash discharging slag mouth (3) below is provided with connects ash bucket (5), actuating mechanism (6) include telescopic power device, power device articulates there is the one end of lever, the other end fixed connection of lever curved surface sealed lid (4), power device with the backup pad that sets firmly in the section of thick bamboo wall outside of main barrel (1) is articulated, the fulcrum of lever with the backup pad is articulated, main barrel (1) still be provided with corresponding locking mechanism (8) of curved surface sealed lid (4).
2. The ash discharging device for the acrylic acid cracking furnace according to claim 1, wherein a sealing plate is arranged on the right end face of the main cylinder body (1), and the air inlet slag hole (10) is formed in the sealing plate and the pipe wall of the main cylinder body (1).
3. The ash discharging device for the acrylic acid cracking furnace according to claim 1, wherein the screw feeder (2) comprises a rotating shaft, a screw sheet is fixedly arranged on the rotating shaft, the rotating shaft is connected with a driving motor (7), and the driving motor (7) is fixedly connected to the left end of the main cylinder body (1).
4. The ash discharging device for the acrylic acid cracking furnace according to claim 1, wherein the locking mechanism (8) comprises a telescopic power device, the power device is respectively hinged with one ends of two levers, the other ends of the two levers are respectively provided with a clamping part corresponding to the curved surface sealing cover (4), the two levers are symmetrically arranged around the main cylinder body (1), the power device is positioned right above the main cylinder body (1), the power device is fixedly connected with a supporting plate fixedly arranged on the outer side of the cylinder wall of the main cylinder body (1), and the fulcrum of the lever is hinged with the supporting plate.
5. The ash discharging device for an acrylic acid cracking furnace according to claim 1 or 2, wherein the power device comprises an electric cylinder, an air cylinder or an oil cylinder.
6. The ash discharging device for an acrylic cracking furnace according to claim 1, wherein the main cylinder (1) is communicated with a flange round tube (9) positioned above the main cylinder, and the flange round tube (9) is connected with a condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810966444.9A CN108913188B (en) | 2018-08-23 | 2018-08-23 | Ash discharging device for acrylic cracking furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810966444.9A CN108913188B (en) | 2018-08-23 | 2018-08-23 | Ash discharging device for acrylic cracking furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108913188A CN108913188A (en) | 2018-11-30 |
| CN108913188B true CN108913188B (en) | 2023-12-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810966444.9A Active CN108913188B (en) | 2018-08-23 | 2018-08-23 | Ash discharging device for acrylic cracking furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108913188B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103436292A (en) * | 2013-09-02 | 2013-12-11 | 潍坊金丝达环境工程股份有限公司 | Continuous feeding vent device for cracking furnace |
| CN203938657U (en) * | 2014-06-19 | 2014-11-12 | 广东正鹏生物质能源科技有限公司 | A kind of biomass gasifying furnace dry type deslagging device |
| CN206203283U (en) * | 2016-11-22 | 2017-05-31 | 无锡锡东能源科技有限公司 | Spiral ash hoist |
| CN208829600U (en) * | 2018-08-23 | 2019-05-07 | 瑞昌荣联环保科技有限公司 | It is a kind of to go out lime-ash device for acrylic pyrolysis furnace |
-
2018
- 2018-08-23 CN CN201810966444.9A patent/CN108913188B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103436292A (en) * | 2013-09-02 | 2013-12-11 | 潍坊金丝达环境工程股份有限公司 | Continuous feeding vent device for cracking furnace |
| CN203938657U (en) * | 2014-06-19 | 2014-11-12 | 广东正鹏生物质能源科技有限公司 | A kind of biomass gasifying furnace dry type deslagging device |
| CN206203283U (en) * | 2016-11-22 | 2017-05-31 | 无锡锡东能源科技有限公司 | Spiral ash hoist |
| CN208829600U (en) * | 2018-08-23 | 2019-05-07 | 瑞昌荣联环保科技有限公司 | It is a kind of to go out lime-ash device for acrylic pyrolysis furnace |
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| Publication number | Publication date |
|---|---|
| CN108913188A (en) | 2018-11-30 |
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