CN108201858A - A kind of charging system of solid polyolefin hydrocarbon catalyst - Google Patents
A kind of charging system of solid polyolefin hydrocarbon catalyst Download PDFInfo
- Publication number
- CN108201858A CN108201858A CN201611179002.7A CN201611179002A CN108201858A CN 108201858 A CN108201858 A CN 108201858A CN 201611179002 A CN201611179002 A CN 201611179002A CN 108201858 A CN108201858 A CN 108201858A
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- catalyst
- charging system
- spherosome
- pipeline
- solid polyolefin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- 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
- 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
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- 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
Abstract
A kind of charging system of solid polyolefin hydrocarbon catalyst, including catalyst tank and Rotary feeder, the discharge port for stating catalyst tank is connected with the top of Rotary feeder by the first pipeline, the lower part of Rotary feeder is connected with the second pipeline, valve is equipped on first pipeline and the second pipeline, Rotary feeder includes：One shell, enclosure are formed with a cavity；One spherosome, the spherosome surface are equipped with a circle groove, and spherosome is set in cavity and fits closely and can be rolled around transverse axis in the cavity with cavity；And a connecting shaft, connecting shaft are set on the transverse axis of spherosome, and a hole is equipped with corresponding to the position of the connecting shaft on shell, connecting shaft passes through the hole.Rotary feeder is provided on the catalyst tank tank bottom pipeline of the charging system of the present invention, the speed control catalyst charge amount that can be rotated by adjusting Rotary feeder ensures that charging system is continuous, accurate and be steadily added in polymer reactor by solid catalyst in the process of running.
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 CN102993342A provides a kind of charging system of powdery polyolefin catalyst.The system includes catalysis
Agent tank, pans and wind turbine, catalyst tank are connected by pipeline with pans, and an automatic valve is set on pipeline, and wind turbine goes out
Entrance with circulation loop is connected to form at the top and bottom of pipeline and pans, is set on pipeline close to pans top position respectively
Outlet is put, is connect by pipeline with rear system.The automatic valve of two series connection, automatic valve are set above the pipeline being connect with rear system
Between set a quantity tube；One gas blow line is set respectively in the outlet of two automatic valves.The invention can be normal
Solid catalyst is added continuously in reaction system by pressure, but due to the metering device for lacking catalyst, the addition of catalyst
Amount is unable to control.And this charging system is using a catalyst tank and a pans, catalyst charging long flow path, catalyst
It is easily enriched with and remains in pans, cause the waste of catalyst.
Lack a kind of simple in equipment at present, maintenance easy to repair, can make solid polyolefin catalyst granules it is continuous,
Catalyst charging system that is steady and being precisely added the catalyst feeder in polymer reactor and match with it
System.
Invention content
The purpose of the present invention is to provide a kind of charging systems of solid polyolefin hydrocarbon catalyst.
To achieve the above object, the present invention provides a kind of charging system of solid polyolefin hydrocarbon 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 spherosome, the spherosome surface be equipped with one circle groove, the spherosome be set on the cavity in and with it is described
Cavity is fitted closely and can be rolled in the cavity around transverse axis；And
One connecting shaft, the connecting shaft are set on the transverse axis of spherosome, and the connecting shaft is corresponded on the shell
Position be equipped with a hole, the connecting shaft pass 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 spherosome 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 on spherosome surface are conducive to catalyst and continuously enter in groove in concave slope shape, be more conducive to
Spherosome rotation passes through the continuous blanking of groove.
Further, the angle of the groove and transverse 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 and transverse axis, it is easier to control catalyst
Blanking velocity and discharge quantity.
Further, the housing surface, spherosome surface and groove surfaces are smooth surface.The light on spherosome surface
The sliding sealing be conducive between spherosome 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 polyolefin hydrocarbon 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 spherosome in Rotary feeder of the present invention.
Fig. 3 is the structure diagram of the charging system of solid polyolefin hydrocarbon catalyst of the present invention.
Fig. 4 is another structure diagram of the charging system of solid polyolefin hydrocarbon catalyst of the present invention.
Wherein, reference numeral：
1st, shell
2nd, spherosome
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 polyolefin hydrocarbon 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 spherosome 2,2 surface of spherosome be equipped with one circle groove 3, the spherosome 2 be set on the cavity in and with
The cavity is fitted closely and can be rolled in the cavity around transverse axis；And
One connecting shaft 11, the connecting shaft 11 are set on the transverse axis of spherosome 2, are corresponded on the shell 1 described
The position of connecting shaft 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 spherosome 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 spherosome are conducive to catalyst and continuously enter in groove, be more conducive in concave slope shape
As the rotation of spherosome 2 passes through the continuous blanking of groove.
Further, the angle α of the groove 3 and transverse axis is more than 0 ° and less than 90 °, preferably greater than 15 ° and small
In 75 °, more preferably greater than 30 ° and less than 60 °.Certain angle is accompanied between groove 3 and transverse axis, it is easier to control catalysis
The blanking velocity and discharge quantity of agent.
Further, the housing surface, 2 surface of spherosome and 3 surface of groove are smooth surface.2 surface of spherosome
The smooth sealing be conducive between spherosome 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 4.
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 of transverse axis for determining 2 surface of spherosome are 15 DEG C, and urged with failure Ti systems
Agent carries out the different rotation rates of spherosome 2 accurate measurement calibration, and detailed process is to distinguish the rotary speed of spherosome 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 spherosome, and determine its relationship
Formula.The relation curve or relational expression of this kind of catalyst discharge quantity and 2 rotary speed of spherosome are obtained, it can be by adjusting spherosome
Rotary speed, accurate measurement and control are carried out to catalyst discharge quantity, the rotation of spherosome 2 is by Motor Control.
A kind of continuous charging system of solid polyolefin hydrocarbon catalyst, including catalyst tank 4 and Rotary feeder 5.Catalyst
The discharge port of tank 4 is connected with the top of Rotary feeder 5 by the first pipeline 9, and the lower part of Rotary feeder 5 passes through the second pipeline
10 are connected with polymer reactor (to draw in figure), and solid Ti series catalysts particle adds in mouth through catalyst and is added to catalyst tank
4.When charging system is run, after being passed through the inert gas of setting pressure 2.4MPa into catalyst tank 4 by high pressure gas pipeline,
Pressure is set as 2.0MPa by counterbalance valve, starts Rotary feeder 5, opens the valve on the first pipeline 9 and the second pipeline 10
Door 6, Rotary feeder 5 carry out rotation splicing and blanking, high pressure gas (N are connected in the first pipeline 92), solid particle catalyst
It is delivered into polymer reactor via the high pressure nitrogen of 2.2MPa.It is controlled by controlling the rotary speed of Rotary feeder 5
With the inlet amount of metered catalyst.
By the operation of 48 hours, solid polyolefin catalyst granules can continuously, it is steady and be precisely added poly-
It closes in reactor.
Embodiment 2
The direction of a circle groove 3 and the angle of transverse axis for determining 2 surface of spherosome are 20 DEG C, and urged with failure Cr systems
Agent carries out the different rotation rates of spherosome 2 accurate measurement calibration, and detailed process is to distinguish the rotary speed of spherosome 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 spherosome, and determine its relationship
Formula.The relation curve or relational expression of this kind of catalyst discharge quantity and 2 rotary speed of spherosome are obtained, it can be by adjusting spherosome
Rotary speed, accurate measurement and control are carried out to catalyst discharge quantity, the rotation of spherosome 2 is by Motor Control.
A kind of continuous charging system of solid polyolefin hydrocarbon catalyst, including catalyst tank 5 and Rotary feeder 5, is urged simultaneously
5 outside of agent tank carries temperature control equipment 8.The discharge port of catalyst tank 4 passes through the first pipeline with the top of Rotary feeder 5
9 are connected, and the lower part of Rotary feeder 5 is connected by the second pipeline 10 with polymer reactor, and solid Cr series catalysts particles are through urging
Agent adds in mouth and is added to catalyst tank 4.When charging system is run, it is passed through and is set into catalyst tank 4 by high pressure gas pipeline
After the inert gas of constant-pressure 2.4MPa, pressure is set as 2.0MPa by counterbalance valve, is set by temperature control equipment 8
The temperature of control is -50 DEG C；Start Rotary feeder 5, open on the first pipeline 9 and the second pipeline 12 valve 6, rotary feeding
Device 5 carries out rotation splicing and blanking, and high pressure gas (N is connected in the first pipeline 92), solid particle catalyst is via 2.2MPa's
High pressure nitrogen is delivered into polymer reactor.The internal temperature of catalyst tank 4 is controlled by temperature control equipment 8, is passed through
The rotary speed of Rotary feeder 5 is controlled to control the inlet amount with metered catalyst.
By the operation of 48 hours, solid polyolefin catalyst granules can continuously, it is steady and be precisely added poly-
It closes in reactor.
Embodiment 3
The direction and the angle of transverse axis for determining a circle groove 3 on 2 surface of spherosome are 30 DEG C, and with the metallocene that fails
Catalyst carries out the different rotation rates of spherosome 2 accurate measurement calibration, and detailed process is by the rotary speed of spherosome 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 spherosome 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 spherosome are obtained, it can be by adjusting spherosome
Rotary speed, accurate measurement and control are carried out to catalyst discharge quantity, the rotation of spherosome 2 is by Motor Control.
A kind of continuous charging system of solid polyolefin hydrocarbon catalyst, including catalyst tank 4 and Rotary feeder 5, is urged simultaneously
In agent tank 4 oscillator (being not drawn into figure) is carried with blender 7,4 outside of catalyst tank.The discharge port of catalyst tank 4 with
The top of Rotary feeder 5 is connected by the first pipeline 9, and the lower part of Rotary feeder 5 passes through the second pipeline 10 and polymerisation
Device is connected, and solid metallocene catalyst granules adds in mouth through catalyst and is added to catalyst tank 4.When charging system is run, pass through
After high pressure gas pipeline is passed through the inert gas of setting pressure 2.4MPa into catalyst tank 4, pressure is set by counterbalance valve
For 2.0MPa, agitating mode has been set in advance to continuously stir in turn on agitator 7 and oscillator, mixing speed at the uniform velocity 20 turns/
Divide and mode of oscillation is continuous oscillation, frequency of oscillation is at the uniform velocity 30 beats/min；Start Rotary feeder 5, open the first pipeline 9
And second on pipeline 12 valve 6, Rotary feeder 5 carries out rotation splicing and blanking, high pressure gas is connected in the first pipeline 9
(N2), solid particle catalyst is delivered into via the high pressure nitrogen of 2.3MPa in polymer reactor.By controlling rotary feeding
The rotary speed of device 5 controls the inlet amount with metered catalyst.
By the operation of 48 hours, solid polyolefin catalyst granules can continuously, it is steady and be precisely added poly-
It closes in reactor.
Embodiment 4
The direction and the angle of transverse axis for determining a circle groove 3 on 2 surface of spherosome are 40 DEG C, and with the metallocene that fails
Catalyst carries out the different rotation rates of spherosome 2 accurate measurement calibration, and detailed process is by the rotary speed of spherosome 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 spherosome 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 spherosome are obtained, it can be by adjusting spherosome
Rotary speed, accurate measurement and control are carried out to catalyst discharge quantity, the rotation of spherosome 2 is by Motor Control.
A kind of continuous charging system of solid polyolefin hydrocarbon catalyst, including catalyst tank 4 and Rotary feeder 5, is urged simultaneously
In agent tank 4 temperature control equipment 8 is carried with blender 7,4 outside of catalyst tank.The discharge port of catalyst tank 4 adds with rotation
The top of glassware 5 is connected by the first pipeline 9, and the lower part of Rotary feeder 5 is connected by the second pipeline 10 with polymer reactor,
Solid metallocene catalyst granules adds in mouth through catalyst and is added to catalyst tank 4.When charging system is run, pass through high pressure gas
After pipeline is passed through the inert gas of setting pressure 2.4MPa into catalyst tank 4, pressure is set as 2.0MPa by counterbalance valve,
The temperature that control is set by temperature control equipment 8 is -20 DEG C, and agitating mode has been set in advance as interval in turn on agitator 7
Stirring stirs 1 minute intermittently 2 minutes, and mixing speed is at the uniform velocity 30 revs/min；Start Rotary feeder 5, open the first pipeline 9 and
12 valve 6 on second pipeline, Rotary feeder 5 carry out rotation splicing and blanking, high pressure gas are connected in the first pipeline 9
(N2), solid particle catalyst is delivered into via the high pressure nitrogen of 2.3MPa in polymer reactor.Pass through temperature control equipment 8
Control the internal temperature of catalyst tank 4, by control the rotary speed of Rotary feeder 5 control with metered catalyst into
Doses.
By the operation of 48 hours, solid polyolefin catalyst granules can continuously, it is steady and be precisely added poly-
It closes in reactor.
Embodiment 5
The direction of a circle groove 3 and the angle of transverse axis for determining 2 surface of spherosome are 50 DEG C, and urged with failure Cr systems
Agent carries out the different rotation rates of spherosome 2 accurate measurement calibration, and detailed process is to distinguish the rotary speed of spherosome 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 spherosome, and determine its relationship
Formula.The relation curve or relational expression of this kind of catalyst discharge quantity and 2 rotary speed of spherosome are obtained, it can be by adjusting spherosome
Rotary speed, accurate measurement and control are carried out to catalyst discharge quantity, the rotation of spherosome 2 is by Motor Control.
A kind of continuous charging system of solid polyolefin hydrocarbon catalyst, including catalyst tank 4 and Rotary feeder 5, is urged simultaneously
4 outside of agent tank carries temperature control equipment 8 and oscillator.The discharge port of catalyst tank 4 and the top of Rotary feeder 5 lead to
It crosses the first pipeline 9 to be connected, the lower part of Rotary feeder 5 is connected by the second pipeline 10 with polymer reactor, the catalysis of solid Cr systems
Agent particle adds in mouth through catalyst and is added to catalyst tank 4.When charging system is run, by high pressure gas pipeline to catalyst tank
After the inert gas of setting pressure 2.4MPa is passed through in 4, pressure is set as 2.0MPa by counterbalance valve, is controlled and filled by temperature
It is -10 DEG C to put 8 temperature for setting control, opens oscillator, and mode of oscillation has been set in advance as intermittent oscillation, has vibrated 1 minute
Intermittently 1 minute, frequency of oscillation was at the uniform velocity 40 beats/min；Start Rotary feeder 5, open on the first pipeline 9 and the second pipeline 10
Valve 6, Rotary feeder 5 carry out rotation splicing and blanking, high pressure gas (N are connected in the first pipeline 92), solid particle catalysis
Agent is delivered into via the high pressure nitrogen of 2.4MPa in polymer reactor.Catalyst tank 4 is controlled by temperature control equipment 8
Internal temperature passes through the inlet amount for controlling the rotary speed of Rotary feeder 5 to control with metered catalyst.
By the operation of 48 hours, solid polyolefin catalyst granules can continuously, it is steady and be precisely added poly-
It closes in reactor.
Embodiment 6
The direction of a circle groove 3 and the angle of transverse axis for determining 2 surface of spherosome are 60 DEG C, and urged with failure Cr systems
Agent carries out the different rotation rates of spherosome 2 accurate measurement calibration, and detailed process is to distinguish the rotary speed of spherosome 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 spherosome, and determine its relationship
Formula.The relation curve or relational expression of this kind of catalyst discharge quantity and 2 rotary speed of spherosome are obtained, it can be by adjusting spherosome
Rotary speed, accurate measurement and control are carried out to catalyst discharge quantity, the rotation of spherosome 2 is by Motor Control.
A kind of continuous charging system of solid polyolefin hydrocarbon catalyst, including catalyst tank 4 and Rotary feeder 5, is urged simultaneously
4 carry blender 7 in agent tank.The discharge port of catalyst tank 4 is connected with the top of Rotary feeder 5 by the first pipeline 9, rotation
The lower part for turning feeder 5 is connected by the second pipeline 10 with polymer reactor, and solid Cr series catalysts particles are added in through catalyst
Mouth is added to catalyst tank 4.When charging system is run, by being passed through setting pressure into catalyst tank 4 at high pressure gas pipeline
After the inert gas of 2.4MPa, pressure is set as 2.0MPa by counterbalance valve, agitating mode has been set in advance in turn on agitator 7
It is continuously stirred for frequency conversion, i.e. positive stirring stirs reverse agitating function 1 minute in 1 minute, and rotary speed is at the uniform velocity 15 revs/min；Start rotation
Turning feeder 5, open on the first pipeline 9 and the second pipeline 12 valve 6, Rotary feeder 5 carries out rotation splicing and blanking, the
High pressure gas (N is connected in one pipeline 92), solid particle catalyst delivers into polymerisation via the high pressure nitrogen of 2.4MPa
In device.Pass through the inlet amount for controlling the rotary speed of Rotary feeder 5 to control with metered catalyst.
By the operation of 48 hours, solid polyolefin catalyst granules can continuously, it is steady and be precisely added poly-
It closes in reactor.
Embodiment 7
The direction of a circle groove 3 and the angle of transverse axis for determining 2 surface of spherosome are 65 DEG C, and urged with failure Ti systems
Agent carries out the different rotation rates of spherosome 2 accurate measurement calibration, and detailed process is to distinguish the rotary speed of spherosome 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 spherosome, and determine its relationship
Formula.The relation curve or relational expression of this kind of catalyst discharge quantity and 2 rotary speed of spherosome are obtained, it can be by adjusting spherosome
Rotary speed, accurate measurement and control are carried out to catalyst discharge quantity, the rotation of spherosome 2 is by Motor Control.
A kind of continuous charging system of solid polyolefin hydrocarbon catalyst, including catalyst tank 4 and Rotary feeder 5, is urged simultaneously
4 outside of agent tank carries oscillator.The discharge port of catalyst tank 4 is connected with the top of Rotary feeder 5 by the first pipeline 9,
The lower part of Rotary feeder 5 is connected by the second pipeline 10 with polymer reactor, and solid Ti series catalysts particles add through catalyst
Entrance is added to catalyst tank 4.When charging system is run, by the way that setting pressure is passed through at high pressure gas pipeline into catalyst tank 4
After the inert gas of power 2.4MPa, pressure is set as 2.25MPa by counterbalance valve, oscillator is opened, is set in advance and vibrates
Mode is frequency conversion continuous oscillation, and frequency of oscillation is irregular, less than 60 beats/min；Start Rotary feeder 5, open the first pipeline 9 and
12 valve 6 on second pipeline, Rotary feeder 5 carry out rotation splicing and blanking, high pressure gas are connected in the first pipeline 9
(N2), solid particle catalyst is delivered into via the high pressure nitrogen of 2.0MPa in polymer reactor.By controlling rotary feeding
The rotary speed of device 5 controls the inlet amount with metered catalyst.
By the operation of 48 hours, solid polyolefin catalyst granules can continuously, it is steady and be precisely added poly-
It closes in reactor.
Embodiment 8
The direction of a circle groove 3 and the angle of transverse axis for determining 2 surface of spherosome are 75 DEG C, and urged with failure Ti systems
Agent carries out the different rotation rates of spherosome 2 accurate measurement calibration, and detailed process is to distinguish the rotary speed of spherosome 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 spherosome, and determine its relationship
Formula.The relation curve or relational expression of this kind of catalyst discharge quantity and 2 rotary speed of spherosome are obtained, it can be by adjusting spherosome
Rotary speed, accurate measurement and control are carried out to catalyst discharge quantity, the rotation of spherosome 2 is by Motor Control.
A kind of continuous charging system of solid polyolefin hydrocarbon catalyst, including catalyst tank 4 and Rotary feeder 5, is urged simultaneously
In agent tank 4 temperature control equipment 8 and oscillator are carried with blender 7,4 outside of catalyst tank.The discharging of catalyst tank 4
Mouthful it is connected with the top of Rotary feeder 5 by the first pipeline 9, the lower part of Rotary feeder 5 is by the second pipeline 10 with polymerizeing
Reactor is connected, and solid Ti series catalysts particle adds in mouth through catalyst and is added to catalyst tank 4.When charging system is run, lead to
It crosses at high pressure gas fluid line after being passed through the inert gas of setting pressure 2.4MPa into catalyst tank 4, is set by counterbalance valve
Pressure is 2.0MPa, and the temperature that control is set by temperature control equipment 8 is -30 DEG C, and turn on agitator 7 and oscillator carry
Before set agitating mode and continuously stirred for frequency conversion, i.e. 1 minute stirring reverse agitating function of positive stirring 1 minute, rotary speed is even
15 revs/min of speed；Mode of oscillation is frequency conversion continuous oscillation, and frequency of oscillation is irregular, less than 40 beats/min；Start Rotary feeder 5,
Open the valve 6 on the first pipeline 9 and the second pipeline 10, Rotary feeder 5 carries out rotation splicing and blanking, in the first pipeline 9
It is connected with high pressure gas (N2), solid particle catalyst is delivered into via the high pressure nitrogen of 2.35MPa in polymer reactor.Pass through
Temperature control equipment 8 controls the internal temperature of catalyst tank 4, by controlling the rotary speed of Rotary feeder 5 controlling and
The inlet amount of metered catalyst.
By the operation of 48 hours, solid polyolefin catalyst granules can continuously, it is steady and be precisely added poly-
It closes in reactor.
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 primary calibration and without being demarcated to each catalyst, by volume flow and
The density of catalyst, it is possible to calculate the addition quality of catalyst.So as to illustrate solid polyolefin catalysis using the present invention
The feeder of agent and with the catalyst addition system that it matches, be a kind of simple in equipment, can solid polyolefin urge
Catalyst particles can continuously, the steady and catalyst addition system that is precisely added in polymer reactor.The feeder with
And the catalyst addition system to match with it, not only saved the production cost of polyolefin, but also the maintenance maintenance convenient for 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 polyolefin hydrocarbon 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 spherosome, the spherosome surface be equipped with one circle groove, the spherosome be set on the cavity in and with the cavity
It fits closely and can be rolled in the cavity around transverse axis；And
One connecting shaft, the connecting shaft are set on the transverse axis of spherosome, and the position of the connecting shaft is corresponded on the shell
A hole is installed, the connecting shaft passes through the hole.
2. the charging system of solid polyolefin hydrocarbon catalyst according to claim 1, which is characterized in that the top of the cavity
It is communicated always with the groove with underlying space.
3. the charging system of solid polyolefin hydrocarbon catalyst according to claim 1, which is characterized in that the groove is slope
Shape.
4. the charging system of solid polyolefin hydrocarbon catalyst according to claim 1, which is characterized in that the groove and transverse direction
The angle of axis is more than 0 ° and less than 90 °.
5. the charging system of solid polyolefin hydrocarbon catalyst according to claim 1, which is characterized in that the groove and transverse direction
The angle of axis is more than 15 ° and less than 75 °.
6. the charging system of solid polyolefin hydrocarbon catalyst according to claim 1, which is characterized in that the groove and transverse direction
The angle of axis is more than 30 ° and less than 60 °.
7. the charging system of solid polyolefin hydrocarbon catalyst according to claim 1, which is characterized in that the housing surface,
Spherosome surface and groove surfaces are smooth surface.
8. the charging system of solid polyolefin hydrocarbon 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 polyolefin hydrocarbon catalyst according to claim 1, which is characterized in that in the catalyst tank
Equipped with blender.
10. the charging system of solid polyolefin hydrocarbon 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 polyolefin hydrocarbon 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 polyolefin hydrocarbon 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 polyolefin hydrocarbon catalyst according to claim 1, which is characterized in that the catalyst tank
Outside is equipped with oscillator.
14. the charging system of solid polyolefin hydrocarbon 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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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611179002.7A CN108201858B (en) | 2016-12-19 | 2016-12-19 | Feeding system of solid polyolefin catalyst |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611179002.7A CN108201858B (en) | 2016-12-19 | 2016-12-19 | Feeding system of solid polyolefin catalyst |
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| CN108201858A true CN108201858A (en) | 2018-06-26 |
| CN108201858B CN108201858B (en) | 2020-07-14 |
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ID=62602374
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611179002.7A Active CN108201858B (en) | 2016-12-19 | 2016-12-19 | Feeding system of solid polyolefin catalyst |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021179690A1 (en) * | 2020-03-12 | 2021-09-16 | 江苏维尤纳特精细化工有限公司 | Fluidized bed catalyst supplementing device |
| CN115672195A (en) * | 2021-07-23 | 2023-02-03 | 中国石油天然气股份有限公司 | Booster-type small-particle catalyst filling equipment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4753374A (en) * | 1982-12-20 | 1988-06-28 | Bayer Aktiengesellschaft | Metering apparatus |
-
2016
- 2016-12-19 CN CN201611179002.7A patent/CN108201858B/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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021179690A1 (en) * | 2020-03-12 | 2021-09-16 | 江苏维尤纳特精细化工有限公司 | Fluidized bed catalyst supplementing device |
| CN115672195A (en) * | 2021-07-23 | 2023-02-03 | 中国石油天然气股份有限公司 | Booster-type small-particle catalyst filling equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108201858B (en) | 2020-07-14 |
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