CN108201862A - Charging system of polyolefin solid catalyst - Google Patents
Charging system of polyolefin solid catalyst Download PDFInfo
- Publication number
- CN108201862A CN108201862A CN201611177229.8A CN201611177229A CN108201862A CN 108201862 A CN108201862 A CN 108201862A CN 201611177229 A CN201611177229 A CN 201611177229A CN 108201862 A CN108201862 A CN 108201862A
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- Prior art keywords
- catalyst
- cylinder
- revs
- catalyst according
- solid olefin
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- 229920000098 polyolefin Polymers 0.000 title abstract description 13
- 239000011949 solid catalyst Substances 0.000 title abstract description 5
- 239000003054 catalyst Substances 0.000 claims abstract description 158
- 239000007787 solid Substances 0.000 claims description 33
- 150000001336 alkenes Chemical class 0.000 claims description 23
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 22
- 238000003756 stirring Methods 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 230000010355 oscillation Effects 0.000 claims description 6
- 230000009514 concussion Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000003760 magnetic stirring Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 17
- 238000006116 polymerization reaction Methods 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 description 19
- 239000003795 chemical substances by application Substances 0.000 description 13
- 238000005243 fluidization Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 238000006555 catalytic reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000002685 polymerization catalyst Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/0015—Feeding of the particles in the reactor; Evacuation of the particles out of the reactor
- B01J8/002—Feeding of the particles in the reactor; Evacuation of the particles out of the reactor with a moving instrument
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/01—Processes of polymerisation characterised by special features of the polymerisation apparatus used
-
- 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
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00743—Feeding or discharging of solids
- B01J2208/00752—Feeding
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The utility model provides a polyolefin solid catalyst's charging system, includes catalyst jar and rotatory charging means, and the discharge gate of catalyst jar links to each other through first pipeline with the upper portion of rotatory charging means, and the sub-unit connection of rotatory charging means has the second pipeline, all is equipped with the valve on first pipeline and the second pipeline, and rotatory charging means includes: a housing, a cavity is formed inside the housing; the cylinder is transversely arranged, a circle of groove is formed in the surface of the cylinder, the cylinder is arranged in the cavity, is tightly attached to the cavity and can roll around an axis in the cavity; and the connecting shaft is arranged on the axis of the cylinder, a hole is formed in the position, corresponding to the connecting shaft, of the shell, and the connecting shaft penetrates through the hole. The rotary feeder is arranged on the bottom pipeline of the catalyst tank of the feeding system, the feeding amount of the catalyst can be controlled by adjusting the rotating speed of the rotary feeder, and the solid catalyst can be continuously, accurately and stably fed into the polymerization reactor in the operation process of the feeding system.
Description
Technical field
The present invention relates to field of olefin polymerisation, more particularly, to a kind of feeder of granular solids polyolefin catalyst with
And the catalyst addition system to match with it.
Background technology
The industrial catalyst majority applied to olefinic polyreaction is solid particle type at present, and this solid particle type is urged
The catalyst feeding device of the charging generally use special designing of agent adds in, for example used on Unipol polyethylene devices
Solid catalysis agent feeding device；It is also a kind of by complicated process for preparation, by catalyst preparation into certain density slurries or
Paste, then it is sent into reactor with metering system.Both the above method, the former equipment investment is very high, and adition process is easily stifled,
The amount of catalyst in catalyst feeder is known without accurately and effectively method.The process for preparation of the latter is extremely complex, single
It is more than hour just to need ten for the preparation of catalyst, and catalyst brings slurries or paste into reaction system, to reaction system
Have an impact.
Polyolefin catalyst usually has very high activity, and catalyst is required in practical operation with sufficiently stable and accurate
The minimum flow of control is added in polymer reactor, and it is unstable otherwise to will result in polymerisation, and product quality is caused to fluctuate
Or the caking in reactor.Therefore, it is the key that need to solve how catalyst uniformly, accurately to be added in polymerization reaction system
Problem.In addition the poor fluidity of solid olefins polymerization catalyst, bridge formation, catalyst are united or formed to bonding easily in catalyst tank
Can not be added in feeding line by automatic valve, cause catalyst can not continuous feed, reaction be forced to stop.
Chinese patent CN101786552A discloses a kind of powder material autoweighting feeder, including charging hopper, adds
The entrance of the outlet connection metering ball valve of funnel, interior be equipped with of material channel for measuring ball valve determine capacity and rotary storage
Expect room, the outer wall of storage compartment is against the inner wall of the material channel of metering ball valve, and in storage compartment's rotation process, material import and export can
It is connected with the entrance or outlet for measuring ball valve.The invention can realize low dose of powder feed, but material easily leads in material
The inner wall deposition in road, causes measurement error.
Chinese patent CN101811011A discloses a kind of automatic catalyst-feeding method, setting fluidisation conveying air hose line to
Fluidisation conveying wind is continually fed into feeder, fluidisation conveying wind regulating valve and flowmeter, charging are set on fluidisation conveying air hose line
Setting charging regulating valve on pipe sets one to connect between being located at the pipeline section of outlet valve near exit with discharge nozzle at the top of feeder
Pipe, communicating pipe are equipped with communicating valve and wind pressure regulating valve, and fluidisation conveying wind is constantly passed through into feeder, and catalyst is feeding
It is circulated in connection circulation loop at the top of device, reduces the deposition blocking during catalyst transport, charging is unstable to ask
Topic, but the circulator of the equipment is arranged at the top of feeder, and very strong fluidisation is needed to convey wind, the device one in cyclic process
As use compressed air therefore equipment cost be higher as fluidisation conveying wind, and the invention is also required to convey wind by fluidisation and be protected
Pressure is constant in card feeder is less than or equal to catalyst tank pressurising pressure, higher than regenerator pressure, in this way to the requirement of equipment
Higher increases production cost.
Chinese patent CN102993342 A provide a kind of charging system of powdery polyolefin catalyst.The system includes urging
Agent tank, pans and wind turbine, catalyst tank are connected by pipeline with pans, and an automatic valve is set on pipeline, wind turbine
Entrance is respectively with circulation loop is connected to form at the top and bottom of pipeline and pans, close to pans top position on pipeline
Setting outlet, is connect by pipeline with rear system.Two automatic valves connected are set with above the line under the overall leadership of rear system's connection, automatically
One quantity tube is set between valve；One gas blow line is set respectively in the outlet of two automatic valves.The invention can be
Solid catalyst is added continuously in reaction system under normal pressure, but due to the metering device for lacking catalyst, catalyst adds
Enter amount to be unable to control.And this charging system is using a catalyst tank and a pans, catalyst charging long flow path, catalysis
Agent is easily enriched with and remains in pans, causes the waste of catalyst.
Lack a kind of simple in equipment at present, maintenance easy to repair, can solid polyolefin catalyst granules can connect
Continuous, the steady and catalyst feeder being precisely added in polymer reactor and the catalyst charging to match with it
System.
Invention content
The object of the present invention is to provide a kind of charging systems of solid olefin catalyst.
To achieve the above object, the present invention provides a kind of charging system of solid olefin catalyst, including catalyst tank
And Rotary feeder, the discharge port of the catalyst tank is connected with the top of the Rotary feeder by the first pipeline, described
The lower part of Rotary feeder is connected with the second pipeline, and valve is equipped on first pipeline and the second pipeline, and the rotation adds
Glassware includes：
One shell, the enclosure are formed with a cavity；
One cylinder, the cylinder are laterally set, and the periphery is equipped with a circle groove, and the cylinder is set on
It fits closely and can be rolled in the cavity around axis in the cavity and with the cavity；And
One connecting shaft, the connecting shaft are set on the axis of cylinder, and the position of the connecting shaft is corresponded on the shell
A hole is installed, the connecting shaft passes through the hole.
Further, the top of the cavity is communicated with underlying space with the groove always.Catalyst continuously enters recessed
In slot, continuous blanking can be carried out by groove as cylinder rotates.
Further, the groove is domatic.The size and shape of groove directly affects the continuous blanking of catalyst, accurate
Metering and control, the groove of periphery are conducive to catalyst and continuously enter in groove in concave slope shape, be more conducive to
Cylinder rotation passes through the continuous blanking of groove.
Further, the angle of the groove and axis is more than 0 ° and less than 90 °, preferably greater than 15 ° and less than 75 °,
More preferably greater than 30 ° and less than 60 °.Certain angle is accompanied between groove and axis, it is easier to control the blanking speed of catalyst
Degree and discharge quantity.
Further, the housing surface, periphery and groove surfaces are smooth surface.The light of periphery
The sliding sealing be conducive between cylinder and housing surface, the smooth blanking for being conducive to catalyst of groove surfaces are effective anti-
Only in groove catalyst residual, be conducive to the accurate measurement and control of catalyst blanking.
Further, the connecting shaft is connected with the motor that can control and adjust spherosome rotary speed.
Further, blender is equipped in the catalyst tank.Blender is added in catalyst tank, effectively prevents from being catalyzed
The caking and bridge formation of catalyst in agent tank, ensure that the smooth blanking of catalyst.
Further, the blender is the helix(ribbon type) agitator with motor, magnetic stirring apparatus, magnetic force heating stirring
Device, hinging type blender, frequency conversion double layer blender, propeller mixer, turbine agitator, dasher or anchor formula stirring
Device.
Further, the agitating mode of the blender for intermittent stirring, continuously stir or frequency conversion stirring.
Further, it is equipped with temperature control equipment outside the catalyst tank.It can be according to the characteristic of catalyst, to catalysis
Catalyst is controlled into trip temperature in agent tank, and for the control range of temperature at ± 50 DEG C, the control accuracy of temperature is greater than ± 1 DEG C.
Further, it is equipped with oscillator outside the catalyst tank.The effect of oscillator ensure that catalyst it is continuous under
Material, and effectively prevent the caking and bridge formation of catalyst in catalyst tank.
Further, the oscillator can carry out interval concussion, continuous oscillation or oscillation inverter.
The beneficial effects of the invention are as follows：A kind of continuous charging system of solid olefin catalyst of the present invention can be used
In the high-end trade mark or temperature sensitive type solid polyolefin catalyst charge, the performance of temperature fluctuations affect catalyst is avoided；Utilize stirring
Device is stirred the catalyst stored in catalyst tank and the catalyst stored in catalyst tank is vibrated using oscillator, is avoided solid
Body catalyst bonding unites or builds bridge, and catalyst can be smoothly added in feed system；It is provided on catalyst tank tank bottom pipeline
Rotary feeder, the speed control catalyst charge amount that can be rotated by adjusting Rotary feeder, ensures that charging system is being transported
It is during row that solid catalyst is continuous, accurate and be steadily added in polymer reactor.In addition it can in each depot siding
It installs high pressure gas blow line additional, avoids catalyst deposit, block on pipeline and everywhere valve the problem of, ensure entire
Pipeline is unobstructed, and catalyst is enable to stablize, accurately be added in polymer reactor, has both saved the production cost of polyolefin,
It is convenient for the maintenance maintenance of equipment again.
Description of the drawings
Fig. 1 is the structure diagram of Rotary feeder of the present invention.
Fig. 2 is the sectional view of cylinder in Rotary feeder of the present invention.
Fig. 3 is the structure diagram of the charging system of solid olefin catalyst of the present invention.
Fig. 4 is another structure diagram of the charging system of solid olefin catalyst of the present invention.
Wherein, reference numeral：
1st, shell
2nd, cylinder
3rd, groove
4th, catalyst tank
5th, Rotary feeder
6th, valve
7th, blender
8th, temperature control equipment
9th, the first pipeline
10th, the second pipeline
11st, connecting shaft
α, angle
Specific embodiment
The present invention is specifically described below by embodiment, it is necessary to which indicated herein is that the present embodiment is served only for pair
The present invention is further detailed, it is impossible to be interpreted as limiting the scope of the invention, field personnel can be according to upper
It states present disclosure and makes some corresponding nonessential modifications and adaptations.
A kind of charging system of solid olefin catalyst, including catalyst tank 4 and Rotary feeder 5, the catalyst
The discharge port of tank 4 is connected with the top of the Rotary feeder 5 by the first pipeline 9, the lower part connection of the Rotary feeder 5
There is the second pipeline 10, be equipped with valve 6 on 9 and second pipeline 10 of the first pipeline, the Rotary feeder 5 includes：
One shell 1 is formed with a cavity inside the shell 1；
One cylinder 2, the cylinder 2 laterally setting, 2 surface of cylinder are equipped with a circle groove 3, the cylinder
3 are set in the cavity and fit closely and can be rolled around axis in the cavity with the cavity；And
One connecting shaft 11, the connecting shaft 11 are set on the axis of cylinder 2, and the connection is corresponded on the shell 1
The position of axis 11 is equipped with a hole, and the connecting shaft 11 passes through the hole.
Further, the top of the cavity is communicated with underlying space with the groove 3 always.Catalyst continuously enters recessed
In slot 3, continuous blanking can be carried out by groove 3 as cylinder 2 rotates.
Further, the groove 3 is domatic.The size and shape of groove 3 directly affects the continuous blanking of catalyst, essence
Really metering and control, the groove 3 on 2 surface of cylinder are conducive to catalyst and continuously enter in groove 3, advantageously in concave slope shape
It is rotated in cylinder 2 through 3 continuous blanking of groove.
Further, the angle α of the groove 3 and axis is more than 0 ° and is less than 90 °, preferably greater than 15 ° and is less than
75 °, more preferably greater than 30 ° and less than 60 °.Certain angle is accompanied between groove 3 and axis, it is easier to be controlled under catalyst
Expect speed and discharge quantity.
Further, the housing surface, 2 surface of cylinder and 3 surface of groove are smooth surface.2 surface of cylinder
The smooth sealing be conducive between cylinder 2 and housing surface, the smooth blanking for being conducive to catalyst on 3 surface of groove has
The residual for preventing catalyst in groove 3 of effect, is conducive to the accurate measurement and control of catalyst blanking.
Further, the connecting shaft 11 is connected with the motor that can control and adjust 2 rotary speed of spherosome.
Further, blender 7 is equipped in the catalyst tank 4.Blender 7 is added in catalyst tank 4, is effectively prevented
The caking and bridge formation of catalyst in catalyst tank 4, ensure that the smooth blanking of catalyst.
Further, the blender 7 is the helix(ribbon type) agitator with motor, the heating of magnetic stirring apparatus, magnetic force is stirred
Device, hinging type blender, frequency conversion double layer blender, propeller mixer, turbine agitator, dasher or anchor formula is mixed to stir
Mix device.
Further, the agitating mode of the blender 7 for intermittent stirring, continuously stir or frequency conversion stirring.
Further, 4 outside of catalyst tank is equipped with temperature control equipment 8.It can be according to the characteristic of catalyst, to urging
Catalyst is controlled into trip temperature in agent tank 4, and for the control range of temperature at ± 50 DEG C, the control accuracy of temperature is greater than ± 1 DEG C.
Further, 4 outside of catalyst tank is equipped with oscillator.The effect of oscillator ensure that catalyst it is continuous under
Material, and effectively prevent the caking and bridge formation of catalyst in catalyst tank.
Further, the oscillator can carry out interval concussion, continuous oscillation or oscillation inverter.
Embodiment 1
The direction of a circle groove 3 and the angle α of axis that 2 surface of cylinder is determined are 15 DEG C, and urged with failure Ti systems
Agent carries out the different rotation rates of cylinder 2 accurate measurement calibration, and detailed process is to distinguish the rotary speed of cylinder 2
Be set as 2 revs/min, 4 revs/min, 6 revs/min, 7 revs/min, 8 revs/min, 9 revs/min, 10 revs/min, 12 revs/min, 14 revs/min, 16 turns/
Point, 20 revs/min, 30 revs/min, measure it in 5 minutes, 10 minutes, 15 minutes, 30 minutes, the catalyst discharge quantity of 1 hour, and
It is averaged, then draws out the relation curve of this kind of catalyst discharge quantity and 2 rotary speed of cylinder, and determine its relationship
Formula.The relation curve or relational expression of this kind of catalyst discharge quantity and 2 rotary speed of cylinder are obtained, determines by adjusting to justify
The rotary speed of cylinder 2 carries out accurate measurement and control to catalyst discharge quantity, and the rotation of cylinder 2 is by Motor Control
's.
Embodiment 2
The direction of a circle groove 3 and the angle α of axis that 2 surface of cylinder is determined are 20 DEG C, and urged with failure Cr systems
Agent carries out the different rotation rates of cylinder 2 accurate measurement calibration, and detailed process is to distinguish the rotary speed of cylinder 2
Be set as 2 revs/min, 4 revs/min, 6 revs/min, 7 revs/min, 8 revs/min, 9 revs/min, 10 revs/min, 12 revs/min, 14 revs/min, 16 turns/
Point, 20 revs/min, 30 revs/min, measure it in 5 minutes, 10 minutes, 15 minutes, 30 minutes, the catalyst discharge quantity of 1 hour, and
It is averaged, then draws out the relation curve of this kind of catalyst discharge quantity and 2 rotary speed of cylinder, and determine its relationship
Formula.The relation curve or relational expression of this kind of catalyst discharge quantity and 2 rotary speed of cylinder are obtained, determines that tune can be passed through now
The rotary speed of pitch circle cylinder 2 carries out accurate measurement and control to catalyst discharge quantity, and the rotation of cylinder 2 is by motor
Control.
Embodiment 3
Determine a circle groove 3 on 2 surface of cylinder direction and axis angle α for 30 DEG C, and with the metallocene that fails
Catalyst carries out the different rotation rates of cylinder 2 accurate measurement calibration, and detailed process is by the rotary speed of cylinder 2 point
Be not set as 2 revs/min, 4 revs/min, 6 revs/min, 7 revs/min, 8 revs/min, 9 revs/min, 10 revs/min, 12 revs/min, 14 revs/min, 16
Rev/min, 20 revs/min, 30 revs/min, measure it in 5 minutes, 10 minutes, 15 minutes, 30 minutes, the catalyst discharge quantity of 1 hour,
And be averaged, the relation curve of this kind of catalyst discharge quantity and 2 rotary speed of cylinder is then drawn out, and determine its relationship
Formula.The relation curve or relational expression of this kind of catalyst discharge quantity and 2 rotary speed of cylinder are obtained, determines that tune can be passed through now
The rotary speed of pitch circle cylinder 2 carries out accurate measurement and control to catalyst discharge quantity, and the rotation of cylinder 2 is by motor
Control.
Embodiment 4
Determine a circle groove 3 on 2 surface of cylinder direction and axis angle α for 40 DEG C, and with the metallocene that fails
Catalyst carries out the different rotation rates of cylinder 2 accurate measurement calibration, and detailed process is by the rotary speed of cylinder 2 point
Be not set as 2 revs/min, 4 revs/min, 6 revs/min, 7 revs/min, 8 revs/min, 9 revs/min, 10 revs/min, 12 revs/min, 14 revs/min, 16
Rev/min, 20 revs/min, 30 revs/min, measure it in 5 minutes, 10 minutes, 15 minutes, 30 minutes, the catalyst discharge quantity of 1 hour,
And be averaged, the relation curve of this kind of catalyst discharge quantity and 2 rotary speed of cylinder is then drawn out, and determine its relationship
Formula.The relation curve or relational expression of this kind of catalyst discharge quantity and 2 rotary speed of cylinder are obtained, determines that tune can be passed through now
The rotary speed of pitch circle cylinder 2 carries out accurate measurement and control to catalyst discharge quantity, and the rotation of cylinder 2 is by motor
Control.
Embodiment 5
The direction of a circle groove 3 and the angle α of axis that 2 surface of cylinder is determined are 50 DEG C, and urged with failure Cr systems
Agent carries out the different rotation rates of cylinder 2 accurate measurement calibration, and detailed process is to distinguish the rotary speed of cylinder 2
Be set as 2 revs/min, 4 revs/min, 6 revs/min, 7 revs/min, 8 revs/min, 9 revs/min, 10 revs/min, 12 revs/min, 14 revs/min, 16 turns/
Point, 20 revs/min, 30 revs/min, measure it in 5 minutes, 10 minutes, 15 minutes, 30 minutes, the catalyst discharge quantity of 1 hour, and
It is averaged, then draws out the relation curve of this kind of catalyst discharge quantity and 2 rotary speed of cylinder, and determine its relationship
Formula.The relation curve or relational expression of this kind of catalyst discharge quantity and 2 rotary speed of cylinder are obtained, determines that tune can be passed through now
The rotary speed of pitch circle cylinder 2 carries out accurate measurement and control to catalyst discharge quantity, and the rotation of cylinder 2 is by motor
Control.
Embodiment 6
The direction of a circle groove 3 and the angle α of axis that 2 surface of cylinder is determined are 60 DEG C, and urged with failure Cr systems
Agent carries out the different rotation rates of cylinder 2 accurate measurement calibration, and detailed process is to distinguish the rotary speed of cylinder 2
Be set as 2 revs/min, 4 revs/min, 6 revs/min, 7 revs/min, 8 revs/min, 9 revs/min, 10 revs/min, 12 revs/min, 14 revs/min, 16 turns/
Point, 20 revs/min, 30 revs/min, measure it in 5 minutes, 10 minutes, 15 minutes, 30 minutes, the catalyst discharge quantity of 1 hour, and
It is averaged, then draws out the relation curve of this kind of catalyst discharge quantity and 2 rotary speed of cylinder, and determine its relationship
Formula.The relation curve or relational expression of this kind of catalyst discharge quantity and 2 rotary speed of cylinder are obtained, determines that tune can be passed through now
The rotary speed of pitch circle cylinder 2 carries out accurate measurement and control to catalyst discharge quantity, and the rotation of cylinder 2 is by motor
Control.
Embodiment 7
The direction of a circle groove 3 and the angle α of axis that 2 surface of cylinder is determined are 65 DEG C, and urged with failure Ti systems
Agent carries out the different rotation rates of cylinder 2 accurate measurement calibration, and detailed process is to distinguish the rotary speed of cylinder 2
Be set as 2 revs/min, 4 revs/min, 6 revs/min, 7 revs/min, 8 revs/min, 9 revs/min, 10 revs/min, 12 revs/min, 14 revs/min, 16 turns/
Point, 20 revs/min, 30 revs/min, measure it in 5 minutes, 10 minutes, 15 minutes, 30 minutes, the catalyst discharge quantity of 1 hour, and
It is averaged, then draws out the relation curve of this kind of catalyst discharge quantity and 2 rotary speed of cylinder, and determine its relationship
Formula.The relation curve or relational expression of this kind of catalyst discharge quantity and 2 rotary speed of cylinder are obtained, determines that tune can be passed through now
The rotary speed of pitch circle cylinder 2 carries out accurate measurement and control to catalyst discharge quantity, and the rotation of cylinder 2 is by motor
Control.
Embodiment 8
The direction of a circle groove 3 and the angle α of axis that 2 surface of cylinder is determined are 75 DEG C, and urged with failure Ti systems
Agent carries out the different rotation rates of cylinder 2 accurate measurement calibration, and detailed process is to distinguish the rotary speed of cylinder 2
Be set as 2 revs/min, 4 revs/min, 6 revs/min, 7 revs/min, 8 revs/min, 9 revs/min, 10 revs/min, 12 revs/min, 14 revs/min, 16 turns/
Point, 20 revs/min, 30 revs/min, measure it in 5 minutes, 10 minutes, 15 minutes, 30 minutes, the catalyst discharge quantity of 1 hour, and
It is averaged, then draws out the relation curve of this kind of catalyst discharge quantity and 2 rotary speed of cylinder, and determine its relationship
Formula.The relation curve or relational expression of this kind of catalyst discharge quantity and 2 rotary speed of cylinder are obtained, determines that tune can be passed through now
The rotary speed of pitch circle cylinder 2 carries out accurate measurement and control to catalyst discharge quantity, and the rotation of cylinder 2 is by motor
Control.
From embodiment 1-8 as can be seen that solid polyolefin hydrocarbon catalyst using the present invention feeder and with its phase
Mating catalyst addition system, solid polyolefin catalyst granules can continuously, steady and to be precisely added polymerization anti-
It answers in device；It is accurate to carry out without being demarcated to each catalyst and from the point of view of the calibration result of the feeder of catalyst
Primary calibration, passes through volume flow and the density of catalyst, it is possible to calculate the addition quality of catalyst.So as to
Illustrate solid polyolefin hydrocarbon catalyst using the present invention feeder and with the catalyst addition system that it matches, be a kind of
Simple in equipment, can solid polyolefin catalyst granules can continuously, it is steady and be precisely added polymer reactor
In catalyst addition system.The feeder and the catalyst addition system to match with it, had both saved the life of polyolefin
Cost is produced, and convenient for the maintenance maintenance of equipment.
Certainly, the present invention can also have other various embodiments, without deviating from the spirit and substance of the present invention, ripe
Various corresponding changes and deformation, but these corresponding changes and deformation can be made according to the present invention by knowing those skilled in the art
The protection domain of the claims in the present invention should all be belonged to.
Claims (14)
1. a kind of charging system of solid olefin catalyst, including catalyst tank and Rotary feeder, the catalyst tank
Discharge port is connected with the top of the Rotary feeder by the first pipeline, and the lower part of the Rotary feeder is connected with the second pipe
Line is equipped with valve on first pipeline and the second pipeline, which is characterized in that the Rotary feeder includes：
One shell, the enclosure are formed with a cavity；
One cylinder, the cylinder are laterally set, and the periphery is equipped with a circle groove, and the cylinder is set on described
It fits closely and can be rolled in the cavity around axis in cavity and with the cavity；And
One connecting shaft, the connecting shaft are set on the axis of cylinder, and the position on the shell corresponding to the connecting shaft is set
There is a hole, the connecting shaft passes through the hole.
2. the Rotary feeder of solid olefin catalyst according to claim 1, which is characterized in that the cavity it is upper
Side is communicated with underlying space with the groove always.
3. the Rotary feeder of solid olefin catalyst according to claim 1, which is characterized in that the groove is slope
Shape.
4. the Rotary feeder of solid olefin catalyst according to claim 1, which is characterized in that the groove and axis
The angle of line is more than 0 ° and less than 90 °.
5. the Rotary feeder of solid olefin catalyst according to claim 1, which is characterized in that the groove and axis
The angle of line is more than 15 ° and less than 75 °.
6. the Rotary feeder of solid olefin catalyst according to claim 1, which is characterized in that the groove and axis
The angle of line is more than 30 ° and less than 60 °.
7. the Rotary feeder of solid olefin catalyst according to claim 1, which is characterized in that the cavity table
Face, periphery and groove surfaces are smooth surface.
8. the charging system of solid olefin catalyst according to claim 1, which is characterized in that the connection axis connection
The motor of spherosome rotary speed can be controlled and adjust by having.
9. the charging system of solid olefin catalyst according to claim 1, which is characterized in that in the catalyst tank
Equipped with blender.
10. the charging system of solid olefin catalyst according to claim 9, which is characterized in that the blender is
Helix(ribbon type) agitator, magnetic stirring apparatus, magnetic force heating stirrer, hinging type blender with motor, frequency conversion double layer stirring
Device, propeller mixer, turbine agitator, dasher or anchor agitator.
11. the charging system of solid olefin catalyst according to claim 9, which is characterized in that the blender
Agitating mode for intermittent stirring, continuously stir or frequency conversion stirring.
12. the charging system of solid olefin catalyst according to claim 1, which is characterized in that the catalyst tank
Outside is equipped with temperature control equipment.
13. the charging system of solid olefin catalyst according to claim 1, which is characterized in that the catalyst tank
Outside is equipped with oscillator.
14. the charging system of solid olefin catalyst according to claim 13, which is characterized in that the oscillator energy
It is enough to carry out interval concussion, continuous oscillation or oscillation inverter.
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4753374A (en) * | 1982-12-20 | 1988-06-28 | Bayer Aktiengesellschaft | Metering apparatus |
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2016
- 2016-12-19 CN CN201611177229.8A patent/CN108201862B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4753374A (en) * | 1982-12-20 | 1988-06-28 | Bayer Aktiengesellschaft | Metering apparatus |
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