CN105498674A - Iron chain mechanism for removing coking on wall of vertical type reduced pressure distillation reaction kettle - Google Patents
Iron chain mechanism for removing coking on wall of vertical type reduced pressure distillation reaction kettle Download PDFInfo
- Publication number
- CN105498674A CN105498674A CN201610061302.9A CN201610061302A CN105498674A CN 105498674 A CN105498674 A CN 105498674A CN 201610061302 A CN201610061302 A CN 201610061302A CN 105498674 A CN105498674 A CN 105498674A
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- reactor
- reaction kettle
- coking
- shaft
- decompression distillation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00274—Sequential or parallel reactions; Apparatus and devices for combinatorial chemistry or for making arrays; Chemical library technology
- B01J2219/00277—Apparatus
- B01J2219/00479—Means for mixing reactants or products in the reaction vessels
- B01J2219/00481—Means for mixing reactants or products in the reaction vessels by the use of moving stirrers within the reaction vessels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/18—Details relating to the spatial orientation of the reactor
- B01J2219/185—Details relating to the spatial orientation of the reactor vertical
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention discloses an iron chain mechanism for removing coking on the wall of a vertical type reduced pressure distillation reaction kettle. The iron chain mechanism comprises a reaction kettle and a heating jacket arranged on the outer wall of the reaction kettle, wherein a cavity for accommodating heating liquid is arranged between the reaction kettle and the heating jacket; a slag discharge opening is formed in the bottom of the reaction kettle, a motor is arranged at the top of the reaction kettle, the motor is controlled by a frequency converter, a cycloidal pin gear speed reducer is connected onto the output shaft of the motor, a stirring shaft is connected with the output shaft of the cycloidal pin gear speed reducer through a switch connection device, and the lower end of the stirring shaft is arranged in the reaction kettle; a bearing seat assembly for reinforcing the stirring shaft is arranged in the reaction kettle, a stirring paddle assembly is connected onto the stirring shaft, a plurality of curb chain assemblies are arranged on the stirring paddle assembly, and a plurality of curb chains are arranged on each of the chain assemblies. According to the iron chain mechanism, the integral structure is simple, the decoking cost is greatly reduced, energy conservation and environment protection are achieved, a lot of manpower is saved, at the same time the working time is greatly shortened, the economic benefits of the reaction kettle are increased, and higher safety in use is also achieved.
Description
Technical field
The present invention relates to technical field of chemical, especially relate to a kind of iron chains mechanism removing the coking of vertical decompression distillation reactor still wall.
Background technology
By used oil by vertical response still decompression distillation Reclaimed Base Oil, no matter vertical response still is take chuck conduction oil (have with fused salt or hot blast) heating, or by vertical response still outer wall electromagnetic induction heating, the heating-up temperature of vertical response still outer wall reaches 300-700 DEG C, even higher, after completing a still or the distillation of many stills used oil, the inwall of vertical response still just there will be coking, form the asphaltene colloid layer that 1-8mm is thick, temperature is higher, and still number is more, coking layer is thicker, temperature is higher than 360 DEG C, and this coking layer, starts to occur carbonization.In time the coking layer of vertical response still inwall must be disposed, otherwise not only the heat transfer of still wall is slow, increases energy consumption 1-17%, and coking layer high-temperature evaporation is mixed reduce product quality in base oil oil vapour.
Present coke cleaning technology has two kinds: 1, add superheated vapour (steam temperature 140-160 DEG C, pressure 4-5kg/cm2) and enter reactor and melted by coking layer, cinder is discharged from slag-drip opening at the bottom of still.2, manually wiped off by coking layer with the instrument such as scoop, wire brush, cinder is discharged from slag-drip opening at the bottom of still.
Technology 1 shortcoming: 1, need steam boiler and respective line, invests larger.2, coke cleaning at least needs 2 hours 1 time, and the time is longer.3, after water Jiao mixing, the burnt separation circuit of water and relevant device is increased.4, the waste water after water Jiao separation needs purified treatment.
Technology 2 shortcoming: 1, needs are manually more, and 3 people at least 1 class could remove 1 still coking layer.2, before coke cleaning, cool time is long.Coke cleaning can not carry out when vertical response still high temperature, and reactor cools to about 40 DEG C from more than 300 degree high temperature during blowing out, and force the cooling 1 day time of needs, cooling needs a couple of days naturally.3, dangerous large during coke cleaning.During coke cleaning, workman enters in vertical response still, rarefaction of air in still, and oil gas fills the air, and workman easily suffocates, and needs forced ventilation, works by turns in short-term.
Summary of the invention
The problem to be solved in the present invention is to provide that a kind of structure is simple, energy-conserving and environment-protective, cost is low, easy to use and coke cleaning is effective removing vertical decompression distillation reactor still wall coking iron chains mechanism.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of iron chains mechanism removing the coking of vertical decompression distillation reactor still wall, include reactor and be arranged on the heating jacket on described reactor outer wall, the cavity holding heating fluid is provided with between described reactor and described heating jacket, the bottom of described reactor is provided with slag-drip opening, the top of described reactor is provided with motor, described motor is by Frequency Converter Control, the output shaft of described motor is connected with cycloidal planetary gear speed reducer, the output shaft of described cycloidal planetary gear speed reducer is connected with shaft by conversion jockey, the lower end of described shaft is arranged in described reactor, the bearing block assembly being carried out by described shaft reinforcing is provided with in described reactor, described shaft is connected with paddle assembly, described paddle assembly is provided with several chain assemblies, each described chain assembly is provided with several chains.
Preferably, above-mentioned a kind of iron chains mechanism removing the coking of vertical decompression distillation reactor still wall, the left side of wherein said heating jacket, right side are respectively arranged with and export and heating fluid import with the heating fluid of described cavity connects.
Preferably, above-mentioned a kind of iron chains mechanism removing the coking of vertical decompression distillation reactor still wall, wherein said slag-drip opening is provided with control valve.
Preferably, above-mentioned a kind of iron chains mechanism removing the coking of vertical decompression distillation reactor still wall, the upper end open place of wherein said reactor is provided with sealing device.
Preferably, above-mentioned a kind of iron chains mechanism removing the coking of vertical decompression distillation reactor still wall, the quantity of wherein said chain assembly is four, and is symmetricly set on the left and right sides of described paddle assembly respectively.
Preferably, above-mentioned a kind of iron chains mechanism removing the coking of vertical decompression distillation reactor still wall, wherein said bearing block assembly is fixed on the inwall of described reactor by bracing frame.
Preferably, above-mentioned a kind of iron chains mechanism removing the coking of vertical decompression distillation reactor still wall, the top of wherein said reactor is provided with oil spout coil pipe, and one end of described oil spout coil pipe is arranged in described reactor.
The advantage that the present invention has and beneficial effect are: during reactor coke cleaning, adjustment frequency converter mixer rotating speed improves, mixer is with 84rpm rotational speed, chain assembly is in running order under this rotating speed, when this rotating speed, increase before rotating centrifugal force rate, rotary centrifugal force takes up chain, reactor inwall is close to by chain, rotation along with stirring arm scrapes the part coking layer be bonded on reactor inwall, adjust frequency converter mixer rotating speed afterwards to continue to improve, when mixer is with 126rpm rotational speed, chain assembly is in running order under this rotating speed, when this rotating speed, larger before rotating centrifugal force rate, rotary centrifugal force takes up chain to rectangular-shaped, reactor inwall is close to by chain, rotation along with stirring arm scrapes all coking layers being bonded at reactor inwall, compare with the first coke cleaning technology:
1, structure is simple, and investment only needs several thousand yuan, and cost significantly reduces, and the first coke cleaning technology needs addition boiler and respective line, investment at least several ten thousand yuan.
2, the working time shortens greatly.This mechanism's coke cleaning only needs 5 minutes, and the first coke cleaning technology needs 1-2 hour.
3, save artificial in a large number.This mechanism does not need to increase staff, can complete coke cleaning by reactor operative employee, but the first coke cleaning technology needs kettleman, coke cleaning work coordinates and can complete.
4, realize reduce discharging, energy-conservation.This mechanism's coke cleaning does not discharge, oil spout coil pipe ejection used oil, be exactly reactor need raw material to be processed, high temperature coke cleaning through heating used oil and focus layer (gum asphalt) from slag-drip opening discharge after, through simple and quick sedimentation, reactor process can be returned at once.But the first coke cleaning technology needs boiler heating steam, expends the energy, and the water after cleaning becomes waste water, could must discharge through process.
With existing the second coke cleaning Technical comparing, the advantage/benefit of this mechanism:
1, save artificial in a large number.This mechanism does not need to increase staff, can complete coke cleaning by reactor operative employee, and the second coke cleaning technology needs manually more, and 3 people at least 1 class could remove 1 still coking layer.
2, the working time shortens greatly, improves reactor economic benefit.This mechanism's coke cleaning only needs 5 minutes, and the time that the second coke cleaning technology needs comprises reactor cool time and artificial coke cleaning time.First, before coke cleaning, cool time is long.Coke cleaning can not carry out when vertical response still high temperature, and reactor cools to about 40 DEG C from more than 300 degree high temperature during blowing out, and force the cooling 1 day time of needs, cooling needs a couple of days naturally.Secondly, the artificial coke cleaning time at least 1 class.Shorten reactor furnace outage time with this mechanism's coke cleaning, extend the reactor production time, remarkable benefit.
3, realize reduce discharging, energy-conservation.This mechanism's coke cleaning does not discharge, oil spout coil pipe ejection used oil, be exactly reactor need raw material to be processed, high temperature coke cleaning through heating used oil and focus layer (gum asphalt) from slag-drip opening discharge after, through simple and quick sedimentation, reactor process can be returned at once.But the second coke cleaning technology needs boiler heating water to 60-80 DEG C, expends the energy, and the hot water after cleaning becomes waste water, could must discharge through process.
4, safety.This mechanism's coke cleaning operation is carried out under vacuum conditions, safe and reliable, but the second coke cleaning technology needs workman to enter in vertical response still, and rarefaction of air in still, oil gas fills the air, and workman easily suffocates, and potential safety hazard is large.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention;
Fig. 2 is the profile along F-F direction in Fig. 1;
Fig. 3 is the partial enlarged drawing at A place in Fig. 1;
Fig. 4 is the partial structurtes schematic diagram in the present invention under chain off working state;
Fig. 5 is the overall structure schematic diagram of chain in the present invention;
Fig. 6 is top view when chain assembly is in 126rmp in the present invention under duty;
Fig. 7 is front view when chain assembly is in 126rmp in the present invention under duty;
Fig. 8 is top view when chain assembly is in 84rmp in the present invention under duty;
Fig. 9 is front view when chain assembly is in 84rmp in the present invention under duty.
In figure: 1. motor 2. cycloidal planetary gear speed reducer 3. reactor
4. bearing block assembly 5. chain assembly 6. cavity
7. heating jacket 8. heating fluid exports 9. control valves
10. slag-drip opening 11. heating fluid import 12. paddle assembly
13. bracing frame 14. oil spout coil pipe 15. sealing devices
16. conversion jockey 17. shaft 18. chains
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, shown in Fig. 8 and Fig. 9, a kind of iron chains mechanism removing the coking of vertical decompression distillation reactor still wall, include reactor 3 and be arranged on the heating jacket 7 on reactor 3 outer wall, the cavity 6 holding heating fluid is provided with between reactor 3 and heating jacket 7, the left side of heating jacket 7, right side is respectively arranged with the heating fluid be communicated with cavity 6 and exports 8 and heating fluid import 9, the upper end open place of reactor 3 is provided with sealing device 15, the top of reactor 3 is provided with oil spout coil pipe 14, one end of oil spout coil pipe 14 is arranged in reactor 3, the bottom of reactor 3 is provided with slag-drip opening 10, slag-drip opening 10 is provided with control valve 9, open control valve 9 just the coking block in reactor 3 to be discharged, the top of reactor 3 is provided with motor 1, motor 1 is by Frequency Converter Control, frequency converter can control the rotating speed of motor 1 accurately, the output shaft of motor 1 is connected with cycloidal planetary gear speed reducer 2, the output shaft of cycloidal planetary gear speed reducer 2 is connected with shaft 17 by conversion jockey 16, the lower end of shaft 17 is arranged in reactor 3, the bearing block assembly 4 being carried out by shaft 17 reinforcing is provided with in reactor 3, bearing block assembly 4 is by the inwall of bracing frame 13 fixation reaction still 3, shaft 17 is connected with paddle assembly 12, paddle assembly 12 is provided with four chain assemblies 5, and be symmetricly set on the left and right sides of paddle assembly 12 respectively, each chain assembly 5 is provided with several chains 18.
During reactor 3 coke cleaning, adjustment Frequency Converter Control motor speed improves, when shaft 17 is with 84rpm rotational speed, chain assembly 5 is in running order under this rotating speed, when this rotating speed, increase before rotating centrifugal force rate, rotary centrifugal force takes up chain 18, reactor 3 inwall is close to by chain 18, rotation along with shaft 17 scrapes the part coking layer be bonded on reactor 3 inwall, adjusting frequency converter afterwards makes shaft 17 rotating speed continue to improve, when shaft 17 is with 126rpm rotational speed, chain assembly 5 is in running order under this rotating speed, when this rotating speed, larger before rotating centrifugal force rate, rotary centrifugal force takes up chain 18 to rectangular-shaped, reactor 3 inwall is close to by chain 18, rotation along with shaft 17 scrapes all coking layers being bonded at reactor 3 inwall, through the coke cleaning practice more than 1 year, for the vertical response still of 1.2t/h treating capacity, sum up the iron chains mechanism removing the coking of vertical response still wall and have following technical data: the rotating speed of shaft 17 is between 65-126rpm, lower than 65rpm, can not coke cleaning, from 65rpm to 126rpm, along with rotating speed improves, coke cleaning effect progressively strengthens, but higher than 126rpm, effect no longer increases.5 minutes this mechanism's coke cleaning time, remove focus layer by areal calculation more than 96%, rise time, effect was little again, 1.5 minutes are cleaned at 84rpm constant revolution, 3.5 minutes are cleaned at 126rpm constant revolution, best results, as paddle assembly 12 outer rim and reactor 3 still wall spacing 75mm, cleaning result is best.
Above one embodiment of the present of invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the present patent application scope change and improve, and all should still belong within patent covering scope of the present invention.
Claims (7)
1. remove the iron chains mechanism of vertical decompression distillation reactor still wall coking for one kind, include reactor (3) and be arranged on the heating jacket (7) on described reactor (3) outer wall, the cavity (6) holding heating fluid is provided with between described reactor (3) and described heating jacket (7), the bottom of described reactor (3) is provided with slag-drip opening (10), it is characterized in that: the top of described reactor (3) is provided with motor (1), described motor (1) is by Frequency Converter Control, the output shaft of described motor (1) is connected with cycloidal planetary gear speed reducer (2), the output shaft of described cycloidal planetary gear speed reducer (2) is connected with shaft (17) by conversion jockey (16), the lower end of described shaft (17) is arranged in described reactor (3), the bearing block assembly (4) being carried out by described shaft (17) reinforcing is provided with in described reactor (3), described shaft (17) is connected with paddle assembly (12), described paddle assembly (12) is provided with several chain assemblies (5), each described chain assembly (5) is provided with several chains (18).
2. a kind of iron chains mechanism removing the coking of vertical decompression distillation reactor still wall according to claim 1, is characterized in that: the left side of described heating jacket (7), right side are respectively arranged with the heating fluid be communicated with described cavity (6) and export (8) and heating fluid import (11).
3. a kind of iron chains mechanism removing the coking of vertical decompression distillation reactor still wall according to claim 1, is characterized in that: described slag-drip opening (10) is provided with control valve (9).
4. a kind of iron chains mechanism removing the coking of vertical decompression distillation reactor still wall according to claim 1, is characterized in that: the upper end open place of described reactor (3) is provided with sealing device (15).
5. a kind of iron chains mechanism removing the coking of vertical decompression distillation reactor still wall according to claim 1, it is characterized in that: the quantity of described chain assembly (5) is four, and be symmetricly set on the left and right sides of described paddle assembly (12) respectively.
6. a kind of iron chains mechanism removing the coking of vertical decompression distillation reactor still wall according to claim 1, is characterized in that: on the inwall of described bearing block assembly (4) by the fixing described reactor (3) of bracing frame (13).
7. a kind of iron chains mechanism removing the coking of vertical decompression distillation reactor still wall according to claim 1, it is characterized in that: the top of described reactor (3) is provided with oil spout coil pipe (14), one end of described oil spout coil pipe (14) is arranged in described reactor (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610061302.9A CN105498674A (en) | 2016-01-28 | 2016-01-28 | Iron chain mechanism for removing coking on wall of vertical type reduced pressure distillation reaction kettle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610061302.9A CN105498674A (en) | 2016-01-28 | 2016-01-28 | Iron chain mechanism for removing coking on wall of vertical type reduced pressure distillation reaction kettle |
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| CN105498674A true CN105498674A (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610061302.9A Pending CN105498674A (en) | 2016-01-28 | 2016-01-28 | Iron chain mechanism for removing coking on wall of vertical type reduced pressure distillation reaction kettle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110975786A (en) * | 2019-12-05 | 2020-04-10 | 深圳市同德新材料科技有限公司 | Electromagnetic heating reaction kettle |
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| CN203155210U (en) * | 2013-02-21 | 2013-08-28 | 雅安市弘利展化工有限公司 | High-efficiency reaction kettle |
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| JP2015048295A (en) * | 2013-09-04 | 2015-03-16 | Jnc株式会社 | Device and method for scraping polycrystalline silicon |
| CN204841700U (en) * | 2015-05-05 | 2015-12-09 | 湖南奔骥环保能源科技有限责任公司 | Anti -coking reation kettle and have this anti -coking reation kettle's refining equipment |
| CN205517706U (en) * | 2016-01-28 | 2016-08-31 | 刘展鸿 | Iron chain mechanism of vertical underpressure distillation reation kettle cauldron wall coking clears away |
-
2016
- 2016-01-28 CN CN201610061302.9A patent/CN105498674A/en active Pending
Patent Citations (5)
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|---|---|---|---|---|
| CN203155210U (en) * | 2013-02-21 | 2013-08-28 | 雅安市弘利展化工有限公司 | High-efficiency reaction kettle |
| JP2015048295A (en) * | 2013-09-04 | 2015-03-16 | Jnc株式会社 | Device and method for scraping polycrystalline silicon |
| CN203916668U (en) * | 2014-07-04 | 2014-11-05 | 马鞍山科英合成材料有限公司 | A kind of water-based impregnation material reactor of homogeneous heating |
| CN204841700U (en) * | 2015-05-05 | 2015-12-09 | 湖南奔骥环保能源科技有限责任公司 | Anti -coking reation kettle and have this anti -coking reation kettle's refining equipment |
| CN205517706U (en) * | 2016-01-28 | 2016-08-31 | 刘展鸿 | Iron chain mechanism of vertical underpressure distillation reation kettle cauldron wall coking clears away |
Non-Patent Citations (1)
| Title |
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| 潘传九: "《化工设备机械基础》", 31 January 2007, 化学工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110975786A (en) * | 2019-12-05 | 2020-04-10 | 深圳市同德新材料科技有限公司 | Electromagnetic heating reaction kettle |
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