CN111974312A - High-pressure quantitative feeding system for alkylating device active agent - Google Patents
High-pressure quantitative feeding system for alkylating device active agent Download PDFInfo
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- CN111974312A CN111974312A CN202010939326.6A CN202010939326A CN111974312A CN 111974312 A CN111974312 A CN 111974312A CN 202010939326 A CN202010939326 A CN 202010939326A CN 111974312 A CN111974312 A CN 111974312A
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- 239000013543 active substance Substances 0.000 title claims abstract description 114
- 230000002152 alkylating effect Effects 0.000 title claims abstract description 32
- 239000000428 dust Substances 0.000 claims abstract description 119
- 238000003860 storage Methods 0.000 claims abstract description 110
- 238000005804 alkylation reaction Methods 0.000 claims abstract description 36
- 238000001914 filtration Methods 0.000 claims abstract description 33
- 230000029936 alkylation Effects 0.000 claims abstract description 29
- 238000005520 cutting process Methods 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 24
- 238000006243 chemical reaction Methods 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims description 30
- 238000007599 discharging Methods 0.000 claims description 18
- 238000010926 purge Methods 0.000 claims description 13
- 239000003638 chemical reducing agent Substances 0.000 claims description 11
- 238000012856 packing Methods 0.000 claims description 11
- 238000003825 pressing Methods 0.000 claims description 10
- 238000010009 beating Methods 0.000 claims description 9
- 238000005303 weighing Methods 0.000 claims description 9
- 210000004907 gland Anatomy 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 abstract description 17
- 230000003213 activating effect Effects 0.000 abstract description 15
- 239000004215 Carbon black (E152) Substances 0.000 abstract description 14
- 229930195733 hydrocarbon Natural products 0.000 abstract description 14
- 150000002430 hydrocarbons Chemical class 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 14
- 230000008569 process Effects 0.000 abstract description 14
- 239000002608 ionic liquid Substances 0.000 abstract description 10
- 230000002159 abnormal effect Effects 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 239000003513 alkali Substances 0.000 abstract description 4
- 230000008929 regeneration Effects 0.000 abstract description 4
- 238000011069 regeneration method Methods 0.000 abstract description 4
- 238000001704 evaporation Methods 0.000 abstract description 3
- 230000008020 evaporation Effects 0.000 abstract description 3
- 230000000087 stabilizing effect Effects 0.000 abstract description 3
- 239000000843 powder Substances 0.000 abstract description 2
- 239000002893 slag Substances 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 19
- 229940100198 alkylating agent Drugs 0.000 description 10
- 239000002168 alkylating agent Substances 0.000 description 10
- 239000007789 gas Substances 0.000 description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 6
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 6
- 150000001336 alkenes Chemical class 0.000 description 5
- 238000004806 packaging method and process Methods 0.000 description 5
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 4
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- NNPPMTNAJDCUHE-UHFFFAOYSA-N isobutane Chemical compound CC(C)C NNPPMTNAJDCUHE-UHFFFAOYSA-N 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000003377 acid catalyst Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012840 feeding operation Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000001282 iso-butane Substances 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- -1 olefin arene Chemical class 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
Images
Classifications
-
- 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
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
-
- 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
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/008—Feed or outlet control devices
-
- 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
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/02—Feed or outlet devices; Feed or outlet control devices for feeding measured, i.e. prescribed quantities of reagents
-
- 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
- B01J2204/00—Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices
- B01J2204/002—Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices the feeding side being of particular interest
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The invention relates to a high-pressure quantitative feeding system for an alkylating device active agent, which belongs to the technical field of petrochemical industry and comprises a closed discharger, a storage and micro-negative pressure dust removal unit, an automatic metering and conveying unit, a bin pump storage and filtering dust removal unit, a high-pressure quantitative feeder and an emergency stop and cut-off unit. The high-pressure quantitative feeding system for the activating agent of the alkylation device starts from ton bag unloading of the activating agent of the alkylation device until the quantitative feeding of the activating agent to the reaction kettle is completed, adopts an automatic and full-sealing mode in the whole process, and fundamentally solves the problems of unpacking, storage, metering and conveying of the activating agent, dust removal of powder, high-pressure quantitative feeding, emergency stop and cutting under abnormal working conditions and the like, thereby achieving the purposes of stabilizing the operation of the device, prolonging the service life of equipment and thoroughly solving the problem of dust pollution; in addition, the problem of hydrocarbon flash evaporation caused in the ionic liquid regeneration process can be thoroughly solved, so that the problems that the ionic liquid solid slag cannot be separated, the flash hydrocarbon needs to be washed by alkali and water and the negative influence of the flash hydrocarbon on water introduced into the device can be eliminated due to hydrocarbon flash evaporation of the device are solved.
Description
Technical Field
The invention relates to a high-pressure quantitative feeding system for an alkylating device active agent, which is mainly used for dustless closed unpacking, storing, metering and conveying, buffer storage, efficient dust removal, high-pressure quantitative feeding and the like of the alkylating device active agent in petrochemical enterprises and belongs to the technical field of petrochemical industry.
Background
Currently, due to the continuous influence of climate change, people gradually increase the environmental awareness, and provide more strict high requirements for the oil refining industry, and the indexes of fuel products are strictly controlled by reducing environmental pollution to the greatest extent, and realizing cleaner production. At present, the global standard of clean gasoline gradually develops towards high octane number, low aromatic hydrocarbon, low olefin and low sulfur. This limits to some extent the types and amounts of blending components that refiners use in producing on-spec gasoline.
The low molecular olefin and butane are reacted by strong acid catalyst to produce alkylate. Compared with catalytic gasoline containing large amount of arene and olefin, the alkylate oil has the obvious features of low sulfur content, no olefin arene, low volatility and high octane number. The alkylate oil is blended into the gasoline, so that the content of harmful components such as sulfur, aromatic hydrocarbon, olefin and the like in the gasoline can be diluted and reduced, the octane number of the gasoline can be higher, the antiknock performance is improved, and the alkylate oil becomes the most ideal clean vehicle gasoline component at present.
The alkylation device process is an environment-friendly gas processing process, the reaction mechanism is that isobutane and butylene are subjected to alkylation reaction in the presence of a catalyst to obtain alkylate, the alkylate has high octane number and low sensitivity, does not contain sulfur, aromatic hydrocarbon and olefin, is an ideal gasoline blending component, converts low-value liquefied gas into high-value gasoline, and has remarkable economic benefit.
In the traditional carbon four-alkylation process, liquid concentrated sulfuric acid or hydrofluoric acid is used as a catalyst, so that the disadvantages of serious equipment corrosion, environmental pollution, personal harm and the like are brought while the alkylated gasoline is produced. The development of new, environmentally friendly, carbon-tetra-alkylation processes has been the most challenging topic of the world's refinery industry.
The ionic liquid catalyzed carbon four-alkylation process developed by China Petroleum university (Beijing) is a novel composite ionic liquid, replaces the traditional hydrofluoric acid/concentrated sulfuric acid as a catalyst, and is a brand-new green, safe and environment-friendly carbon four-alkylation technology. The three-year long-period operation shows that the device is safe and stable in production, the technology is mature and reliable, the technical monopoly of clean gasoline production of foreign companies is broken, the worldwide problem which puzzles the oil refining industry for decades is overcome, and the whole process technology is in the international leading level.
In order to realize the alkylation process, the alkylation activator needs to be continuously and quantitatively added into the reaction kettle under the pressure state (0.45 MPa). The great advantages brought by the upgrading of the alkylation project from normal pressure operation to pressure operation are that: the problem that solid slag in the tank is continuously turned over and is not easy to settle at the bottom of the tank due to hydrocarbon flash evaporation is solved; a large amount of hydrocarbon gas is not continuously generated at the top of the static separator for alkali washing and water washing treatment, so that a flash hydrocarbon purifier AB is eliminated, and water is prevented from being introduced into a system due to alkali washing and water washing treatment of flash hydrocarbon; the ionic liquid in the tank does not need to be heated and flashed, and a standby circulating ionic liquid heater is omitted; the ionic liquid regeneration system greatly reduces the hydrocarbon substance discharge torch, but returns most of the hydrocarbon substances to the alkylation reaction system in a liquid state; hydrocarbon substances discharged by overpressure in the regenerated ionic liquid buffer tank can be directly washed by alkali and then sent into a torch; the regenerated ionic liquid is mixed with liquid hydrocarbon, so that the fluidity of a regenerated ionic liquid regeneration system is increased, and the blocking tendency is reduced; the pressure difference of the inlet and the outlet of the balance ion liquid pump, the to-be-regenerated ion liquid pump, the dosing tank bottom pump and the regeneration ion liquid pump is reduced, and the power consumption of the device can be reduced.
At present, alkylating device active agent tinning and feeding mode mainly are with the crane with the active agent wrapping bag promote to the height more than 25 meters, then with the manual work mode of separating the bag, the active agent buffer tank is added through the dead weight to the active agent, passes through the material dead weight from the buffer tank again and gets into the ball valve, ball valve export direct access reation kettle. The main problems with this approach are: the dust on the top of the tank causes environmental pollution, the dust of the active agent has strong corrosivity on an on-site steel structure and a platform, the scattered active agent causes damage to the health of operation workers, hydrocarbon gas is easy to agglomerate after contacting with the active agent, the material inlet pipeline above the reaction kettle is easy to block due to wall hanging, the addition of the active agent cannot be accurately measured without a measuring system, and the like.
Therefore, the high-pressure quantitative feeding system for the active agent of the alkylation device under the pressure state is provided, the problems of unpacking, storing, metering, conveying, dust removal, high-pressure quantitative feeding and the like of the active agent are fundamentally solved, and the technical problem which is urgently needed to be solved in the technical field is solved.
Disclosure of Invention
The invention aims to provide a high-pressure quantitative feeding system for an alkylating device active agent under a pressure state, which fundamentally solves the problems of unpacking, storage, metering and conveying of the active agent, storage and filtering and dust removal of a bin pump, high-pressure quantitative feeding, emergency stop and cut-off under abnormal working conditions and the like, thereby achieving the purposes of protecting the environment, improving the operation level of the device and prolonging the service life of equipment.
The above object of the present invention is achieved by the following technical solutions:
a high pressure dosing system for an alkylation unit active agent, comprising: the automatic metering and conveying device comprises a closed discharger, a storage and micro-negative pressure dust removal unit, an automatic metering and conveying unit, a bin pump storage and filtering dust removal unit, a high-pressure quantitative feeder and an emergency stop cutting unit, wherein the closed discharger is positioned above the storage and micro-negative pressure dust removal unit and is connected with the storage and micro-negative pressure dust removal unit through a pipeline and a control valve, the automatic metering and conveying unit is positioned below the storage and micro-negative pressure dust removal unit, the storage and micro-negative pressure dust removal unit is connected with one end of the automatic metering and conveying unit, the other end of the automatic metering and conveying unit is connected with the bin pump storage and filtering dust removal unit, the bin pump storage and filtering dust removal unit is connected with the high-pressure quantitative feeder, and the high-pressure quantitative feeder is connected with the emergency stop.
Preferably, the device also comprises a DCS control device which is respectively connected with the closed discharger, the storage and micro-negative pressure dust removal unit, the automatic metering and conveying unit, the bin pump storage and filtering dust removal unit, the high-pressure quantitative feeder and the emergency stop cutting unit.
Preferably, the hermetic discharger includes: the device comprises a beating plate, a cylinder, a closed unloading frame, an aperture valve, a lifting bag pressing cylinder and a small blanking hopper; the beating plate is connected with the cylinder, the diaphragm valve is installed in the middle of the sealed unloading rack, the bag lifting and pressing cylinder is fixed above the inlet of the small unloading hopper, the small unloading hopper is fixedly connected with the sealed unloading rack through a connecting pipe, and the small unloading hopper is connected with an active agent feeding port in the storage and micro-negative pressure dust removal unit.
Preferably, the cylinders are four groups in total and are respectively fixed on the periphery of the closed discharging frame.
Preferably, the storage and micro-negative pressure dust removal unit comprises: the device comprises an active agent feeding port, an active agent storage tank, a high-efficiency dust remover, an ash discharge pneumatic valve, an exhaust valve, a high material level meter, a low material level meter and a discharge port; the active agent storage tank is located in the center of the storage and micro-negative pressure dust removal unit, the active agent feeding port is located in the upper portion of the active agent storage tank, the efficient dust remover is connected with the active agent storage tank through the ash discharging pneumatic valve, an exhaust valve is arranged on the side of the upper portion of the active agent storage tank and connected with the efficient dust remover, the active agent storage tank is provided with a high material level meter and a low material level meter on the upper portion and the lower portion of the barrel respectively, a discharge port is formed in the bottom of the active agent storage tank, and the discharge port is connected with a feeding valve in the automatic metering and conveying unit.
Preferably, the automatic metering and conveying unit comprises: the device comprises a feed valve, a level indicator, an exhaust valve, a conveying tank body, a discharge valve, an injector, a purge valve, a weighing sensor, an air inlet valve and a pressure transmitter; the automatic metering and conveying device comprises a conveying tank body, a feed valve, a material level meter, a pressure valve and a pressure transmitter, wherein the conveying tank body is located in the middle of an automatic metering and conveying unit, the feed valve is located in the center of the upper portion of the conveying tank body and connected with a discharge valve, the material level meter, the pressure valve and the pressure transmitter are located at the end socket of the conveying tank body, the exhaust valve is located at the end socket of the conveying tank body, the discharge valve is located at the lower portion of the conveying tank body and connected with an ejector, an air inlet pipeline is connected with a purge valve and the pressure valve respectively, the other end of the purge valve is connected with the ejector, a.
Preferably, the weighing sensors are three and are respectively positioned at the edge of the conveying tank body and uniformly distributed.
Preferably, the bin pump storage and filtering dust removal unit comprises a bin pump air inlet valve, a bin pump feed valve, a high-efficiency dust remover, a discharge valve, a bin pump pressure transmitter, a bin pump exhaust valve, a bin pump, a material level gauge group and a bin pump discharge valve; wherein: the bin pump is located the middle part position of bin pump storage and filtration dust removal unit, and its head position is equipped with bin pump admission valve, bin pump feed valve, the unloading valve respectively, bin pump pressure transmitter and bin pump discharge valve, and the lower extreme of high-efficient dust remover is connected with the top of bin pump through the unloading valve, and one side of high-efficient dust remover still is connected with the bin pump through bin pump discharge valve, and the material level meter group is located one side of bin pump, and the bleeder valve is located the bottom of bin pump, and the bleeder valve is connected with high-pressure quantitative feeder.
Preferably, the level gauge groups are four groups.
Preferably, the high pressure doser comprises: the device comprises a sealing gland, a packing seal, an airtight air inlet, an air sealing ring, a material groove, a rotating shaft, a speed reducer, a variable frequency motor and a bearing; the rotating shaft penetrates through the cavity of the whole high-pressure quantitative feeder, a trough is arranged on the rotating shaft, two ends of the rotating shaft mainly form a closed structure through a structure formed by an air sealing ring and a packing seal, the air sealing ring is located on the inner side, the packing seal is located on the outer side and is provided with multiple layers and is fixed by a sealing gland, an air-tight air inlet is connected with the air sealing ring, the rotating shaft is connected with a bearing, a speed reducer and a variable frequency motor are arranged on the outer side of the right-side bearing, the rotating shaft is connected with the speed. The outlet end of the high-pressure quantitative feeder is connected with a pneumatic cut-off valve in the emergency stop cut-off unit.
Preferably, the stuffing seal is three layers.
Preferably, the emergency stop cutting unit comprises a blockage clearing pneumatic valve, a blockage clearing hand valve, a pneumatic stop valve, a reaction kettle cutting hand valve and a reaction kettle; one end of the blockage clearing pneumatic valve is connected with factory air, the other end of the blockage clearing pneumatic valve is connected to the blanking main pipe through the blockage clearing hand valve, the pneumatic valve is arranged at the blanking main pipe portion, and a reaction kettle cutting hand valve is arranged at a feed inlet of the reaction kettle and connected with a pneumatic cutting valve.
Has the advantages that:
the high-pressure quantitative feeding system for the active agent of the alkylation device starts from the ton bag unloading of the active agent of the alkylation device until the quantitative feeding of the active agent to the reaction kettle is completed, adopts an automatic and full-sealing mode in the whole process, and fundamentally solves the problems of unpacking, storage, metering, conveying, dust removal, continuous quantitative feeding, emergency stop and cutting under abnormal working conditions and the like of the active agent, thereby achieving the purposes of stabilizing the operation of the device, prolonging the service life of equipment and thoroughly solving the problem of dust pollution.
The invention is further described with reference to the following figures and detailed description, but is not meant to limit the scope of the invention.
Drawings
FIG. 1 is a schematic diagram of the high pressure dosing system for alkylating device active agents of example 1 of the present invention.
FIG. 2 is a schematic diagram of the construction of a seal discharger in a high pressure dosing system for alkylating agent in example 1 of the present invention.
FIG. 3 is a schematic diagram of the active agent storage and micro-negative pressure dust removal unit in the high pressure dosing system for alkylating agents in example 1 of the present invention.
FIG. 4 is a schematic diagram of the automatic metering and delivery unit of the high pressure dosing system for alkylating agents in example 1 of the present invention.
FIG. 5 is a schematic diagram of the structure of the bin pump storage and filtration dust removal unit in the high pressure dosing system for alkylating device active agents in example 1 of the present invention.
FIG. 6 is a schematic diagram of the high pressure doser of the high pressure dosing system for alkylating agents of example 1 of the present invention.
Fig. 7 is a schematic diagram of the emergency shutdown unit in the high pressure dosing system for alkylating device active agents in example 1 of the present invention.
FIG. 8 is a schematic flow chart of the operation of the high pressure dosing system for alkylating device active agents of example 1 of the present invention.
Detailed Description
The components employed in the device of the present invention are, unless otherwise specified, conventional components commercially available in the art; the adopted control systems are all conventional control systems available in the market in the technical field.
Names of main parts in the drawings
1 sealed discharger 2 storage and micro negative pressure dust removal unit
3 automatic metering and conveying unit 4 storehouse pump storage and filtering dust removal unit
5 high pressure doser 6 emergency stop shut-off unit
7 DCS control device
1-1 beating plate 1-2 cylinder
1-3 closed unloading frame 1-4 diaphragm valve
1-5 lifting bag-pressing cylinder 1-6 blanking small hopper
2-1 active agent feeding port 2-2 active agent storage tank
2-4 ash-discharging pneumatic valve of 2-3 high-efficiency dust remover
2-5 exhaust valve 2-6 high level indicator
2-7 low level indicator 2-8 discharge hole
3-1 feeding valve 3-2 level indicator
3-3 exhaust valve 3-4 conveying tank body
3-5 discharge valve 3-6 ejector
3-7 purge valve 3-8 weighing sensor
3-9 pressure valve 3-10 pressure transmitter
4-1 bin pump air inlet valve and 4-2 bin pump feed valve
4-3 high-efficiency dust remover and 4-4 high-efficiency dust remover blanking valve
4-6 bin pump exhaust valve of 4-5 bin pump pressure transmitter
4-7 bin pump 4-8 level meter group
Discharge valve of 4-9 bin pump
5-1 sealing gland and 5-2 packing seal
5-3 airtight air inlet 5-4 airtight ring
5-5 trough and 5-6 rotating shaft
5-7 variable frequency motor 5-8 speed reducer
5-9 bearing
6-1 blockage clearing pneumatic valve 6-2 blockage clearing hand valve
6-3 pneumatic cut-off valve 6-4 reaction kettle cut-off hand valve
6-5 reaction kettle
Example 1
Fig. 1 is a schematic structural diagram of a high-pressure quantitative feeding system for an alkylating agent in an alkylating device according to embodiment 1 of the present invention, wherein 1 is a closed discharger, 2 is a storage and micro-negative pressure dust removal unit, 3 is an automatic metering and conveying unit, 4 is a bin pump storage and filter dust removal unit, 5 is a high-pressure quantitative feeder, and 6 is an emergency stop and cut-off unit; the high pressure dosing system for alkylating device active agents of the present invention comprises: the device comprises a closed discharger 1, a storage and micro-negative pressure dust removal unit 2, an automatic metering and conveying unit 3, a bin pump storage and filtering dust removal unit 4, a high-pressure quantitative feeder 5 and an emergency stop cutting unit 6, wherein the closed discharger 1 is positioned above the storage and micro-negative pressure dust removal unit 2 and is connected with the storage and micro-negative pressure dust removal unit 2 through a pipeline and a control valve, the automatic metering and conveying unit 3 is positioned below the storage and micro-negative pressure dust removal unit 2, the storage and micro-negative pressure dust removal unit 2 is connected with one end of the automatic metering and conveying unit 3, the other end of the automatic metering and conveying unit 3 is connected with the bin pump storage and filtering dust removal unit 4, the bin pump storage and filtering dust removal unit 4 is connected with the high-pressure quantitative feeder 5, and the high-pressure quantitative feeder 5 is connected with the emergency stop cutting unit 6;
the high-pressure quantitative feeding system for the activating agent of the alkylation device also comprises a DCS control device 7, wherein the DCS control device 7 is respectively connected with the closed discharger 1, the storage and micro-negative pressure dust removal unit 2, the automatic metering and conveying unit 3, the bin pump storage and filtering dust removal unit 4, the high-pressure quantitative feeder 5 and the emergency stop cutting unit 6;
FIG. 2 is a schematic diagram of a closed discharger of a high pressure dosing system for an active agent of an alkylation unit according to example 1 of the present invention; wherein, 1-1 is a beating plate, 1-2 is an air cylinder, 1-3 is a closed unloading frame, 1-4 is an aperture valve, 1-5 is a bag lifting and pressing air cylinder, and 1-6 is a small blanking hopper; embodiment 1 of the present invention a closed discharger for an active agent high-pressure quantitative feeding system of an alkylation unit comprises: 1-1 part of beating plate, 1-2 parts of cylinder, 1-3 parts of sealed unloading frame, 1-4 parts of diaphragm valve, 1-5 parts of lifting bag pressing cylinder and 1-6 parts of small blanking bucket; wherein, the beating plate 1-1 is connected with the cylinder 1-2, the cylinders 1-2 are four groups in total and are respectively fixed on the periphery of the closed unloading frame 1-3, the aperture valve 1-4 is arranged at the center of the closed unloading frame 1-3, the lifting bag pressing cylinder 1-5 is fixed above the inlet of the small blanking hopper 1-6, the small blanking hopper 1-6 is fixedly connected with the closed unloading frame 1-3 through a connecting pipe, and the small blanking hopper 1-6 is connected with the active agent inlet 2-1 in the storage and micro-negative pressure dust removal unit 2;
FIG. 3 is a schematic diagram of a storage and micro-negative pressure dust removal unit in a high-pressure dosing system for alkylating agents in an alkylation unit according to example 1 of the present invention; wherein 2-1 is an active agent feeding port, 2-2 is an active agent storage tank, 2-3 is a high-efficiency dust remover, 2-4 is an ash discharge pneumatic valve, 2-5 is an exhaust valve, 2-6 is a high level indicator, 2-7 is a low level indicator, and 2-8 is a discharge port; embodiment 1 of the present invention provides a storage and micro-negative pressure dust removal unit in a high pressure quantitative feeding system for an alkylating device active agent, comprising: 2-1 parts of an active agent feeding port, 2-2 parts of an active agent storage tank, 2-3 parts of a high-efficiency dust remover, 2-4 parts of an ash discharging pneumatic valve, 2-5 parts of an exhaust valve, 2-6 parts of a high material level indicator, 2-7 parts of a low material level indicator and 2-8 parts of a discharging port; the device comprises an active agent storage tank 2-2, an active agent inlet 2-1, an active agent discharge port 2-2, an efficient dust collector 2-3, an ash discharge pneumatic valve 2-4, an active agent storage tank 2-2, an exhaust valve 2-5, an efficient dust collector 2-3, a high level gauge 2-6 and a low level gauge 2-7, a discharge port 2-8, a pipeline and a feed valve 3-1 in an automatic metering and conveying unit 3, wherein the active agent storage tank 2-2 is positioned in the center of the storage and micro-negative-pressure dust collecting unit, the active agent inlet 2-1 is positioned at the upper part of the active agent storage tank 2-2, the exhaust valve 2-5 is arranged at the side of the upper part of the active agent storage tank 2-2, the exhaust valve 2-5 is connected with;
FIG. 4 is a schematic diagram of an automatic metering and delivery unit of the high pressure dosing system for alkylating agent in example 1 of the present invention; wherein 3-1 is a feed valve, 3-2 is a level indicator, 3-3 is an exhaust valve, 3-4 is a conveying tank body, 3-5 is a discharge valve, 3-6 is an ejector, 3-7 is a purge valve, 3-8 is a weighing sensor, 3-9 is a pressurization valve, and 3-10 is a pressure transmitter; the automatic metering and conveying unit in the high-pressure quantitative feeding system for the alkylating device active agent in embodiment 1 of the invention comprises: 3-1 parts of a feed valve, 3-2 parts of a level indicator, 3-3 parts of an exhaust valve, 3-4 parts of a conveying tank body, 3-5 parts of a discharge valve, 3-6 parts of an injector, 3-7 parts of a purge valve, 3-8 parts of a weighing sensor, 3-9 parts of an air inlet valve and 3-10 parts of a pressure transmitter; wherein, the conveying tank body 3-4 is positioned at the middle position of an automatic metering and conveying unit (also called a small automatic feeder), the feed valve 3-1 is positioned at the center of the upper part of the conveying tank body 3-4 and is connected with the discharge valve 3-5, the level gauge 3-2, the pressure valve 3-9 and the pressure transmitter 3-10 are positioned at the end socket part of the conveying tank body 3-4, the exhaust valve 3-3 is arranged at the end socket part of the conveying tank body 3-4, the discharge valve 3-5 is arranged at the lower part of the conveying tank body 3-4 and is connected with the ejector 3-6, the air inlet pipeline is respectively connected with the purge valve 3-7 and the pressure valve 3-9, the other end of the purge valve 3-7 is connected with the ejector 3-6, 3 weighing sensors 3-8 are positioned at the edge of the conveying tank body 3-4 in total, the ejectors 3-6 are connected with a bin pump feeding valve 4-2 in the bin pump storage and filtering dust removal unit 4;
as shown in fig. 5, a schematic structural diagram of a bin pump storage and filtration dust removal unit in a high-pressure quantitative feeding system for an alkylating device active agent in embodiment 1 of the present invention is shown, where 4-1 is a bin pump air inlet valve, 4-2 is a bin pump feed valve, 4-3 is a high efficiency dust remover, 4-4 is a discharge valve, 4-5 is a bin pump pressure transmitter, 4-6 is a bin pump exhaust valve, 4-7 is a bin pump, and 4-8 is a level gauge group; 4-9 are bin pump discharge valves, and a bin pump storage and filtration dust removal unit in the high-pressure quantitative feeding system for the alkylating device active agent in embodiment 1 of the invention comprises a bin pump air inlet valve 4-1, a bin pump feed valve 4-2, an efficient dust remover 4-3, a discharge valve 4-4, a bin pump pressure transmitter 4-5, a bin pump exhaust valve 4-6, a bin pump 4-7, a level gauge group 4-8 and a bin pump discharge valve 4-9; wherein: the bin pump 4-7 is positioned in the middle of the bin pump storage and filtration dust removal unit, the end enclosure part of the bin pump storage and filtration dust removal unit is respectively provided with a bin pump air inlet valve 4-1, a bin pump feed valve 4-2, a discharge valve 4-4, a bin pump pressure transmitter 4-5 and a bin pump exhaust valve 4-6, the lower end of the high-efficiency dust remover 4-3 is connected with the top of the bin pump 4-7 through the discharge valve 4-4, one side of the high-efficiency dust remover 4-3 is also connected with the bin pump 4-7 through the bin pump exhaust valve 4-6, the material level meter group 4-8 is positioned on one side of the bin pump 4-7, four groups are provided, the discharge valves 4-9 are positioned at the bottom of the bin pump 4-7, and the discharge valves 4-9 are connected with the;
fig. 6 is a schematic structural view of a high-pressure quantitative feeder in a high-pressure quantitative feeding system for an alkylating device active agent in embodiment 1 of the present invention, wherein 5-1 is a sealing gland, 5-2 is a packing seal, 5-3 is an airtight air inlet, 5-4 is an air sealing ring, 5-5 is a trough, 5-6 is a rotating shaft, 5-7 is a variable frequency motor, 5-8 is a speed reducer, and 5-9 is a bearing; example 1 of the present invention a high pressure doser for use in an alkylation unit active agent high pressure dosing system comprising: 5-1 parts of sealing gland, 5-2 parts of packing seal, 5-3 parts of airtight air inlet, 5-4 parts of air sealing ring, 5-5 parts of material groove, 5-6 parts of rotating shaft, 5-7 parts of variable frequency motor, 5-8 parts of speed reducing motor and 5-9 parts of bearing; wherein, the rotating shaft 5-6 penetrates through the cavity of the whole high-pressure quantitative feeder, the rotating shaft 5-6 is provided with a trough 5-5, two ends of the rotating shaft 5-6 mainly form a closed structure by a structure consisting of an airtight ring 5-4 and a packing seal 5-2, the airtight ring 5-4 is positioned at the inner side, the packing seal 5-2 is positioned at the outer side and is provided with a plurality of layers, in the embodiment, the rotating shaft is three-layer and is fixed by a sealing gland 5-1, an airtight air inlet 5-3 is connected with the airtight ring 5-4, the outer sides of the 5-6 rotating shaft sealing structures are respectively connected with external bearings 5-9, wherein a speed reducer 5-8 and a variable frequency motor 5-7 are arranged outside the right side bearing 5-9, the speed reducer 5-8 is connected with the rotating shaft, the other end of the high-pressure quantitative feeder 5 is connected with a pneumatic cut-off valve 6-3 in the emergency stop cut-off unit 6;
FIG. 7 is a schematic diagram showing the structure of an emergency stop and shut-off unit in a high-pressure quantitative feeding system for an activating agent of an alkylation device in example 1 of the present invention, wherein 6-1 is a block-clearing pneumatic valve, 6-2 is a block-clearing hand valve, 6-3 is a pneumatic shut-off valve, 6-4 is a reaction kettle shut-off hand valve, and 6-5 is a reaction kettle; the emergency stop cutting unit in the high-pressure quantitative feeding system for the alkylating device active agent in the embodiment 1 of the invention comprises a blockage clearing pneumatic valve 6-1, a blockage clearing hand valve 6-2, a pneumatic stop valve 6-3, a reaction kettle cutting hand valve 6-4 and a reaction kettle 6-5; one end of the blockage removing pneumatic valve 6-1 is connected with factory air, the other end of the blockage removing pneumatic valve is connected to the blanking main pipe through the blockage removing hand valve 6-2, the pneumatic valve 6-3 is arranged on the blanking main pipe, and a reaction kettle cutting hand valve 6-4 connected with the pneumatic cutting valve 6-3 is arranged at a feeding port of the reaction kettle 6-5.
The working steps of the high pressure dosing system for alkylating device active agent of the present invention are as follows:
FIG. 8 is a schematic flow chart of the operation of a high pressure dosing system for alkylating device active agents in accordance with example 1 of the present invention; after the ton bag active agent is transported to an alkylation device site from a warehouse, firstly, hoisting the ton bag to a closed discharger 1 by an electric hoist, carrying out closed micro-negative pressure unpacking on the ton bag active agent, enabling the active agent in the ton bag to automatically flow into a storage and micro-negative pressure dust removal unit 2 at the bottom of the closed discharger 1, discharging dust-containing gas after filtering and dust removal by an active agent storage tank 2-2 in the storage and micro-negative pressure dust removal unit 2, and forming micro-negative pressure in the active agent storage tank 2-2 to ensure that the agent is discharged smoothly by the closed discharger 1 and no dust overflows; then, the active agent in the active agent storage tank 2-2 is weighed and metered according to the process set value by the automatic metering and conveying unit 3, pressurized and fluidized, and then conveyed to a bin pump 4-7 in the bin pump storage and filtration dust removal unit 4, and the dust-containing gas is physically intercepted and filtered by an efficient dust remover 4-3 above the bin pump 4-7 and then discharged after reaching the standard; in the production process, the active agent in the bin pumps 4-7 is continuously fed through the high-pressure quantitative feeder 5, the metering system performs logical operation on the feeding speed, the motor frequency of the high-pressure quantitative feeder 5 is adjusted in real time, and the feeding amount in unit time is ensured to meet the process requirement; under the abnormal operation condition of the alkylation device, the emergency stop cutting unit 6 is automatically started, the pneumatic valve of the discharging pipe is rapidly closed, and the high-pressure quantitative feeder 5 automatically stops running; the high-pressure quantitative feeding system for the activating agent of the alkylation device is controlled by a DCS control device 7, the DCS control device 7 is respectively connected with a closed discharger 1, a storage and micro-negative pressure dust removal unit 2, an automatic metering and conveying unit 3, a bin pump storage and filtering dust removal unit 4, a high-pressure quantitative feeder 5 and an emergency stop cutting unit 6, and the high-pressure quantitative feeding system can be operated in a full-automatic mode and can also be controlled by a single group.
FIG. 2 is a schematic diagram of a closed discharger of a high pressure dosing system for an active agent of an alkylation unit according to example 1 of the present invention; when the closed discharger 1 works, the lower discharge hole of the active agent packaging bag is manually sleeved on the inner pipe of the small discharge hopper 1-6, and the lower discharge hole of the active agent packaging bag is tightly bundled by a lifting bag pressing cylinder 1-5 (an automatic lifting bag pressing cylinder); after the bag mouth is opened manually, the active agent in the bag enters a storage and micro-negative pressure dust removal unit 2 through the outlet of the small blanking hopper 1-6 under the action of gravity; after the active agent in the packaging bag is emptied, opening a beating plate 1-1 to beat the active agent packaging bag, so that the active agent remained on the inner wall of the packaging bag can completely fall into a storage and micro-negative pressure dust removal unit 2, and before bag taking is required to prevent dust scattering when the empty bag is taken out from a closed discharger 1, closing an aperture valve 1-4 of the closed discharger 1 and tightly binding the opening of the empty bag to ensure that no leakage exists in the unpacking and discharging processes, and the whole unpacking and discharging processes are closed and have no dust overflow;
FIG. 3 is a schematic diagram of a storage and micro-negative pressure dust removal unit in a high-pressure dosing system for alkylating agents in an alkylation unit according to example 1 of the present invention; when the active agent storage and micro-negative pressure dust removal unit 2 works, the ton bag of active agent is discharged through the closed discharger 1 and then enters the active agent storage tank 2 for storage; the active agent of the closed discharger 1 flows into the storage tank by weight, the dust-containing gas in the storage tank is filtered by the high-efficiency dust remover 2-3 arranged at the top of the active agent storage tank and then is discharged after reaching the standard, and the fan arranged on the dust remover is opened to form micro negative pressure in the storage tank, so that the dust is prevented from overflowing. After each batch of feeding is finished, the active agent storage tank 2-2 needs to be protected by nitrogen gas, the nitrogen charging pressure is 0.05-0.3 MPa, the active agent is ensured to be isolated from the air, and the active agent in the storage tank can conveniently flow into the metering and conveying equipment 3.
FIG. 4 is a schematic diagram of an automatic metering and delivery unit of the high pressure dosing system for alkylating agent in example 1 of the present invention; the automatic metering and conveying unit 3 can mainly realize the timing, quantification, balance and automatic addition of the active agent to the cabin pump storage and filtering dust removal unit 4, when in work, the exhaust valve 3-3 is opened, the feeding valve 3-1 is opened in a delayed way, and the active agent automatically flows to the conveying tank body 3-4 by utilizing the gravity of the material; when the material reaches the set weight (or material level), the feed valve 3-1 and the exhaust valve 3-3 are closed; then, the pressurizing valve 3-9 is opened, the conveying tank body 3-4 starts to be pressurized to a set pressure, the purging valve 3-7 and the discharging valve 3-5 are opened in sequence, and the system starts to convey materials; when the pressure of the conveying tank body 3-4 reaches the lower limit, the air inlet valve 3-9 and the discharge valve 3-5 are closed, the purge valve 3-7 is closed in a delayed mode, and the weighing instrument is automatically reset until the whole conveying process is finished, and the feeding weight and the feeding interval time can be adjusted according to the process requirements;
FIG. 5 is a schematic diagram of a bin pump storage and filtration dust removal unit in a high pressure dosing system for alkylating device active agents in example 1 of the present invention; the bin pump storage and filtration dust removal unit 4 mainly receives the active agent sent by the automatic metering and conveying unit 3 so as to facilitate the continuous application of the alkylation device; the active agent and the dust-containing gas conveyed by the automatic metering and conveying unit 3 are intercepted and filtered by a high-efficiency dust remover 4-3 (high-precision flexible dust removing equipment) arranged at the top of a bin pump 4-7, the active agent is stored in the bin pump 4-7, and the filtered clean gas is discharged through a uniform discharge pipeline in a plant area; in order to ensure that the active agent is not affected with damp and caking, the storage, filtration and dust removal unit of the bin pump only receives 300-600 Kg of active agent each time, and the active agent in the bin pump is ensured to be used up within 4-8 hours; the bin pump is a pressure container, and after each batch of materials enter, the bin needs to be pressurized by 0.5-0.8 MPa of nitrogen for protection, so that the active agent is prevented from being wetted and bonded, and the blanking of the bin is facilitated;
FIG. 6 is a schematic diagram of a high pressure doser in a high pressure dosing system for alkylating agents of example 1 of the present invention; the high-pressure quantitative feeding system for the alkylating device active agent realizes high-pressure quantitative feeding through the high-pressure quantitative feeder, the high-pressure quantitative feeder 5 is provided with a specially designed sealing mechanism, and the airtight valve can adapt to stable operation under the working conditions of high pressure, rotation and abrasion through an airtight and filler sealing structure; the continuous adjustment of the rotating speed is realized by adjusting the frequency of a variable frequency motor 5-7 (a high-pressure rotary valve variable frequency motor) in the high-pressure quantitative feeder 5 and the speed reduction adjustment function of a speed reduction motor 5-8 (a multi-stage gear reducer); real-time data of the feeding amount is calculated and fed back by a DCS control device, and the motor frequency is adjusted in real time, so that the feeding amount meets the process requirement; the continuous feeding operation under the working condition of 0-0.8 Mpa pressure can be realized.
FIG. 7 is a schematic diagram showing the construction of an emergency stop shut-off unit in a high pressure dosing system for alkylating device active agents in example 1 of the present invention; according to the high-pressure quantitative feeding system for the activating agent of the alkylation device, the emergency stop cutting unit 6 is arranged at the bottom of the high-pressure quantitative feeding device 5, the pneumatic valve on the discharging pipe can be closed emergently when the alkylation device is in an abnormal production working condition, hydrocarbon gas in a reaction kettle is prevented from returning to an activating agent inlet pipeline and blocking the discharging pipeline after being mixed with the activating agent and agglomerated, the nitrogen blowing line is started after the feeding system is cut off emergently, the discharging pipe is blown under pressure, the residual activating agent in the discharging pipe is blown clean, and the blockage cleaning valve of the discharging pipe can be opened for manual cleaning under the condition that the discharging pipe is seriously blocked.
The high-pressure quantitative feeding system for the active agent of the alkylation device is automatically controlled by the DCS control device, so that the automation level of the operation of the device is improved, and the high-pressure accurate quantitative feeding of the active agent of the alkylation device under a pressure state is realized; the full-automatic control of the units is realized, the agent adding condition can be dynamically monitored in time, and the stable production and the control of the production state of the device are facilitated.
The high-pressure quantitative feeding system for the activating agent of the alkylation device starts from the ton bag unloading of the activating agent of the alkylation device until the quantitative feeding of the activating agent to the reaction kettle is completed, adopts an automatic and full-sealing mode in the whole process, and fundamentally solves the problems of unpacking, storage, metering and conveying of the activating agent, dust removal of powder, high-pressure quantitative feeding, emergency stop and cutting under abnormal working conditions and the like, thereby achieving the purposes of stabilizing the operation of the device, prolonging the service life of equipment and thoroughly solving the problem of dust pollution.
Claims (10)
1. A high pressure dosing system for an alkylation unit active agent, comprising: the automatic metering and conveying device comprises a closed discharger, a storage and micro-negative pressure dust removal unit, an automatic metering and conveying unit, a bin pump storage and filtering dust removal unit, a high-pressure quantitative feeder and an emergency stop cutting unit, wherein the closed discharger is positioned above the storage and micro-negative pressure dust removal unit and is connected with the storage and micro-negative pressure dust removal unit through a pipeline and a control valve, the automatic metering and conveying unit is positioned below the storage and micro-negative pressure dust removal unit, the storage and micro-negative pressure dust removal unit is connected with one end of the automatic metering and conveying unit, the other end of the automatic metering and conveying unit is connected with the bin pump storage and filtering dust removal unit, the bin pump storage and filtering dust removal unit is connected with the high-pressure quantitative feeder, and the high-pressure quantitative feeder is connected with the emergency stop.
2. The high pressure dosing system for alkylating device actives according to claim 1, wherein: the device is characterized by further comprising a DCS control device, wherein the DCS control device is respectively connected with the closed discharger, the storage and micro-negative pressure dust removal unit, the automatic metering and conveying unit, the bin pump storage and filtering dust removal unit, the high-pressure quantitative feeder and the emergency stop cutting unit.
3. The high pressure dosing system for alkylating device actives according to claim 2, wherein: the closed discharger comprises: the device comprises a beating plate, a cylinder, a closed unloading frame, an aperture valve, a lifting bag pressing cylinder and a small blanking hopper; the beating plate is connected with the cylinder, the diaphragm valve is installed in the middle of the sealed unloading rack, the bag lifting and pressing cylinder is fixed above the inlet of the small unloading hopper, the small unloading hopper is fixedly connected with the sealed unloading rack through a connecting pipe, and the small unloading hopper is connected with an active agent feeding port in the storage and micro-negative pressure dust removal unit.
4. The high pressure dosing system for an alkylation unit active agent according to claim 3, wherein: the four cylinders are respectively fixed around the closed discharging frame.
5. The high pressure dosing system for alkylating device actives according to claim 4, wherein: the storage and micro-negative pressure dust removal unit comprises: the device comprises an active agent feeding port, an active agent storage tank, a high-efficiency dust remover, an ash discharge pneumatic valve, an exhaust valve, a high material level meter, a low material level meter and a discharge port; the active agent storage tank is located in the center of the storage and micro-negative pressure dust removal unit, the active agent feeding port is located in the upper portion of the active agent storage tank, the efficient dust remover is connected with the active agent storage tank through the ash discharging pneumatic valve, an exhaust valve is arranged on the side of the upper portion of the active agent storage tank and connected with the efficient dust remover, the active agent storage tank is provided with a high material level meter and a low material level meter on the upper portion and the lower portion of the barrel respectively, a discharge port is formed in the bottom of the active agent storage tank, and the discharge port is connected with a feeding valve in the automatic metering and conveying unit.
6. The high pressure dosing system for alkylating device actives according to claim 5, wherein: the automatic metering and conveying unit comprises: the device comprises a feed valve, a level indicator, an exhaust valve, a conveying tank body, a discharge valve, an injector, a purge valve, a weighing sensor, an air inlet valve and a pressure transmitter; the automatic metering and conveying device comprises a conveying tank body, a feed valve, a material level meter, a pressure valve and a pressure transmitter, wherein the conveying tank body is located in the middle of an automatic metering and conveying unit, the feed valve is located in the center of the upper portion of the conveying tank body and connected with a discharge valve, the material level meter, the pressure valve and the pressure transmitter are located at the end socket of the conveying tank body, the exhaust valve is located at the end socket of the conveying tank body, the discharge valve is located at the lower portion of the conveying tank body and connected with an ejector, an air inlet pipeline is connected with a purge valve and the pressure valve respectively, the other end of the purge valve is connected with the ejector, a.
7. The high pressure dosing system for alkylating device actives according to claim 6, wherein: the weighing sensors are three and are respectively positioned at the edge of the conveying tank body and are uniformly distributed.
8. The high pressure dosing system for alkylating device actives according to claim 7, wherein: the bin pump storage and filtering dust removal unit comprises a bin pump air inlet valve, a bin pump feed valve, a high-efficiency dust remover, a discharge valve, a bin pump pressure transmitter, a bin pump exhaust valve, a bin pump, a material level gauge group and a bin pump discharge valve; wherein: the bin pump is positioned in the middle of the bin pump storage and filtration dust removal unit, a bin pump air inlet valve, a bin pump feed valve, a discharge valve, a bin pump pressure transmitter and a bin pump exhaust valve are respectively arranged at the end socket part of the bin pump storage and filtration dust removal unit, the lower end of the high-efficiency dust remover is connected with the top of the bin pump through the discharge valve, one side of the high-efficiency dust remover is also connected with the bin pump through the bin pump exhaust valve, the material level meter group is positioned at one side of the bin pump, the discharge valve is positioned at the bottom of the bin pump, and the discharge valve is connected with the high-; the material level meter groups are four groups.
9. The high pressure dosing system for alkylating device actives according to claim 8, wherein: the high pressure doser comprises: the device comprises a sealing gland, a packing seal, an airtight air inlet, an air sealing ring, a material groove, a rotating shaft, a bearing, a speed reducer and a variable frequency motor; the rotary shaft penetrates through the cavity of the whole high-pressure quantitative feeder, a trough is arranged on the rotary shaft, the two ends of the rotary shaft mainly form a closed structure by a structure formed by a gas sealing ring and a packing seal, the packing seal is positioned on the inner side and is provided with multiple layers, the sealing ring is fixed by a sealing gland, an airtight air inlet is connected with the sealing ring, a speed reducer and a variable frequency motor are arranged on the outer side of a right bearing, the rotary shaft is connected with the speed reducer, the speed reducer is connected with the variable frequency motor, and the other end of the high-pressure quantitative feeder is connected with a pneumatic cut.
10. The high pressure dosing system for alkylating a device active agent of claim 9, wherein: the emergency stop cutting unit comprises a blockage removing pneumatic valve, a blockage removing hand valve, a pneumatic stop valve, a reaction kettle cutting hand valve and a reaction kettle; one end of the blockage clearing pneumatic valve is connected with factory air, the other end of the blockage clearing pneumatic valve is connected to the blanking main pipe through the blockage clearing hand valve, the pneumatic valve is arranged at the blanking main pipe portion, and a reaction kettle cutting hand valve is arranged at a feed inlet of the reaction kettle and connected with a pneumatic cutting valve.
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| CN202010939326.6A CN111974312A (en) | 2020-09-09 | 2020-09-09 | High-pressure quantitative feeding system for alkylating device active agent |
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| CN202010939326.6A CN111974312A (en) | 2020-09-09 | 2020-09-09 | High-pressure quantitative feeding system for alkylating device active agent |
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Application publication date: 20201124 |