CN205435719U - Propylene is polymerization cauldron in advance - Google Patents
Propylene is polymerization cauldron in advance Download PDFInfo
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- CN205435719U CN205435719U CN201521128854.4U CN201521128854U CN205435719U CN 205435719 U CN205435719 U CN 205435719U CN 201521128854 U CN201521128854 U CN 201521128854U CN 205435719 U CN205435719 U CN 205435719U
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Abstract
The utility model provides a propylene is polymerization cauldron in advance, including upper cover, barrel and the low head that from top to bottom connects gradually, be equipped with the material import on the upper cover, be equipped with the material export on the low head, be equipped with barrel and low head on the outer wall of barrel and low head and press from both sides the cover, be equipped with upper cover cooling device on the upper cover, be equipped with agitating unit and interior cooling device in the barrel. The utility model discloses an aspect presss from both sides the cover through barrel and low head and cools off barrel and low head, and on the other hand cools off the upper cover through upper cover cooling device, still cools off propylene is polymerization cauldron in advance inside simultaneously, has increased heat transfer area, has improved heat exchange efficiency, avoids leading to because of the propylene is polymerization cauldron in advance temperature is overheated that polymerization speed is out of control in advance, has guaranteed the homogeneity of reacted result. The material was even inside agitating unit made propylene is polymerization cauldron in advance, improved propylene is polymerization cauldron in advance's security, had enlarged the propylene is polymerization cauldron in advance scale and had improved product quality.
Description
Technical field
This utility model relates to chemical technology field, especially relates to a kind of Propylene Pre-polymerization reactor.
Background technology
Polypropylene (PP) plastics are the thermoplastic synthetic resins of a kind of function admirable, and application is extensive, has become as one of product with the fastest developing speed in the big synthetic resin in the world five.PP Production Technology mainly has four kinds, ie in solution method, solvent slurry method (abbreviation slurry method), substance law and gas-phase process.The most also exploitation has substance law-vapor phase method group technology.Mass polymerization technique is divided into again continuous polymerization technique and batch polymerization processes two kinds.According to the difference of polymerization technique, some polymerization technique, for making preactivating catalysts, has prepolymerisation stage, i.e. catalyst first carries out pre-polymerization at a lower temperature with a small amount of propylene.Propylene Pre-polymerization can improve catalyst activity, improve morphology, minimizing fine powder generation, raising product quality, raising production efficiency.
In order to economize on resources, assemble industry development and society polypropylene demand is increased, a lot of polypropylene factories are required for increasing device capbility and improving product quality, but existing technique and device the amplification of industrialization production capacity and improve product quality application process in be also problematic in that, especially in more crucial prepolymerization technology, owing to prepolymerization still is overheated, prepolymerization speed is out of control, result in process product homogeneity poor, have a strong impact on the performance of terminal polypropylene product.
Owing to propylene polymerization is exothermic reaction, in prior art, these heats use water at low temperature to be removed by jacket for heat exchange mostly.Owing to Propylene Pre-polymerization reacting kettle jacketing heat exchange area is less, directly constrain unit scale.It is less that these technology the most do not solve Propylene Pre-polymerization reacting kettle jacketing heat exchange area, direct confining device scale and the technical problem of product quality.
Utility model content
The purpose of this utility model is to provide a kind of Propylene Pre-polymerization reactor, the technical problem little to solve Propylene Pre-polymerization reactor heat exchange area per unit volume of the prior art.
This utility model provides a kind of Propylene Pre-polymerization reactor, including the upper cover being from top to bottom sequentially connected with, cylinder and low head；Described upper cover is provided with material inlet, and described low head is provided with material outlet；
Wherein, the outer wall of described cylinder and described low head is provided with cylinder and low head chuck, and described upper cover is provided with upper cover chiller, is provided with agitating device and interior chiller in described cylinder.
Further, described interior chiller is interior cooling tube.
Further, described interior cooling tube is along described cylinder twist；
Or
Described interior cooling tube includes longitudinal arm that multiple head and the tail are sequentially connected with, and the bearing of trend of each described longitudinal arm is parallel with the bearing of trend of described cylinder.
Further, described upper cover chiller is upper cover cooling coil or upper cover cooling jacket.
Further, described agitating device is agitator.
Further, it is provided with chuck Internal baffle in described cylinder and low head chuck.
Further, one end of described cylinder and low head chuck is cylinder and low head chuck cooling medium inlet, the other end of described cylinder and low head chuck is cylinder and the outlet of low head chuck cooling medium, wherein, described cylinder and low head chuck cooling medium inlet are positioned at the bottom of described low head, described cylinder and the outlet of low head chuck cooling medium and are arranged on the top of described cylinder.
Further, described cylinder and low head chuck cooling medium inlet or exit are provided with cylinder and low head cooling medium controls valve, to control the flow of the cooling medium in described cylinder and low head chuck.
Further, one end of described interior chiller is interior chiller cooling medium inlet, and the other end of described interior chiller is the outlet of interior chiller cooling medium；Described interior chiller cooling medium inlet or exit are provided with interior cooling medium and control valve, to control the flow of the cooling medium in described interior chiller.
Further, one end of described upper cover chiller is upper cover chiller cooling medium inlet, the other end of described upper cover chiller is the outlet of upper cover chiller cooling medium, described upper cover chiller cooling medium inlet or exit are provided with upper cover cooling medium and control valve, to control the flow of the cooling medium in described upper cover chiller.
During work, raw material propylene and the catalyst material inlet from Propylene Pre-polymerization reactor top is sent into Propylene Pre-polymerization reactor and is carried out prepolymerization, in cylinder, material is fully contacted with catalyst, mixes, and under uniform temperature, pressure, carries out prepolymerization by agitating device effect.The slurry after prepolymerization material outlet bottom Propylene Pre-polymerization reactor delivers to carry out propene polymerization reactor polyreaction.Owing to propylene polymerization is exothermic reaction, and owing to Propylene Pre-polymerization reactor is the operation of full still, i.e. it is full of the raw material such as propylene and catalyst in Propylene Pre-polymerization reactor, for ensureing material heat transmission uniformly, on the one hand material is cooled down by this utility model by the cooling medium of cylinder and low head chuck, is on the other hand cooled down material by the cooling medium of upper cover chiller.In addition, when Propylene Pre-polymerization reactor volume is bigger, the heat at Propylene Pre-polymerization reactor center cannot pass through the cooling medium removal in cylinder, upper cover and low head in time, thus inside Propylene Pre-polymerization reactor, there will be focus (place that heat is concentrated), this will certainly make polymerization slurry generation temperature runaway, affects polymer quality and the safety of Propylene Pre-polymerization reactor.Therefore, this utility model cools down inside Propylene Pre-polymerization reactor also by interior chiller simultaneously.This utility model carries out the cooling of three aspects by cylinder and low head chuck, upper cover chiller and interior chiller to material, increases heat exchange area；Improve heat exchange efficiency；Avoid causing prepolymerization speed out of control because Propylene Pre-polymerization reaction temperature is overheated, it is to avoid produce hot localised points, improve the homogeneity of the temperature of materials inside.Polymer quality and the safety of Propylene Pre-polymerization reactor can be improved simultaneously, expand the scale of Propylene Pre-polymerization reactor.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model detailed description of the invention or technical scheme of the prior art, the accompanying drawing used required in detailed description of the invention or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is embodiments more of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the Propylene Pre-polymerization reactor that Fig. 1 provides for this utility model embodiment.
Fig. 2 is the structural representation of the upper cover chiller of the Propylene Pre-polymerization reactor of a kind of embodiment of this utility model.
Fig. 3 is the structural representation of the upper cover chiller of the Propylene Pre-polymerization reactor of this utility model another kind embodiment.
The structural representation of the interior chiller in the Propylene Pre-polymerization reactor that Fig. 4 provides for a kind of embodiment of this utility model；
The structural representation of the interior chiller in the Propylene Pre-polymerization reactor that Fig. 5 provides for this utility model another kind embodiment.
Reference:
1-Propylene Pre-polymerization reactor；2-agitating device；
3-cylinder；4-upper cover；
5-low head；6-cylinder and low head chuck；
7-upper cover chiller；Chiller in 8-；
9-chuck Internal baffle；10-material inlet；
11-material outlet；
12-cylinder and low head chuck cooling medium inlet；
13-cylinder and the outlet of low head chuck cooling medium；
Chiller cooling medium inlet in 14-；
Chiller cooling medium outlet in 15-；
16-upper cover chiller cooling medium inlet；
17-upper cover chiller cooling medium exports；
18-cylinder and low head cooling medium control valve；
In 19-, cooling medium controls valve；
20-upper cover cooling medium controls valve.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described, it is clear that described embodiment is a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
In description of the present utility model, it should be noted that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, "left", "right", " vertically ", " level ", " interior ", " outward " they be based on orientation shown in the drawings or position relationship; be for only for ease of description this utility model and simplifying and describe; rather than instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " first ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or hint relative importance.Wherein, term " primary importance " is two different positions with " second position ".
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " is installed ", " being connected ", " connection " should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or be integrally connected；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be the connection of two element internals.For the ordinary skill in the art, above-mentioned term concrete meaning in this utility model can be understood with concrete condition.
The structural representation of the Propylene Pre-polymerization reactor 1 that Fig. 1 provides for this utility model embodiment.This utility model provides a kind of Propylene Pre-polymerization reactor 1, as it can be seen, described Propylene Pre-polymerization reactor 1 includes upper cover 4, cylinder 3 and the low head 5 being from top to bottom sequentially connected with；Described upper cover 4 is provided with material inlet 10, and described low head 5 is provided with material outlet 11；Wherein, the outer wall of described cylinder 3 and described low head 5 is provided with cylinder and low head chuck 6, and described upper cover 4 is provided with upper cover chiller 7, is provided with agitating device and interior chiller 8 in described cylinder 3.
It should be noted that, in this utility model, term " cylinder and low head chuck 6 " includes the cylinder chuck being arranged on cylinder 3 outer wall and is arranged on the low head chuck on low head 5 outer wall, cylinder chuck and low head chuck and is collectively forming described cylinder and low head chuck 6.
Wherein, low head 5 and being made into integration with cylinder 3, it is also possible to be separately made.Upper cover 4 and cylinder 3 connect, and can be removably joined together by flange.
Cylinder and low head chuck 6 are coated on the outer wall of cylinder 3 and low head 5, for cooling down cylinder 3 and low head 5；Upper cover chiller 7 is coated on upper cover 4 outer wall, and for cooling down upper cover 4, it is internal for cooling down the reaction mass within cylinder 3 that interior chiller 8 is arranged on cylinder 3.It is to say, this utility model divides three tunnels that the interior media of Propylene Pre-polymerization reactor 1 is carried out omnibearing cooling, expand heat exchange area, increase the heat exchange area of unit volume.
During work, raw material propylene and the catalyst material inlet 10 from Propylene Pre-polymerization reactor 1 top are sent into and are carried out prepolymerization Propylene Pre-polymerization reactor 1, in cylinder 3, material is fully contacted with catalyst, mixes, and under uniform temperature, pressure, carries out prepolymerization by agitating device effect.The slurry after prepolymerization material outlet 11 bottom Propylene Pre-polymerization reactor 1 delivers to carry out propene polymerization reactor polyreaction.Owing to propylene polymerization is exothermic reaction, and owing to Propylene Pre-polymerization reactor is the operation of full still, i.e. it is full of the raw material such as propylene and catalyst in Propylene Pre-polymerization reactor 1, on the one hand reaction medium is cooled down by this utility model by cylinder and low head chuck 6, is on the other hand cooled down reaction medium by upper cover chiller 7.
In addition, when Propylene Pre-polymerization reactor 1 volume is bigger, the heat at Propylene Pre-polymerization reactor 1 center cannot remove heat by cylinder and low head chuck 6, upper cover chiller 7 in time, thus the internal focus (place that heat is concentrated) that there will be of Propylene Pre-polymerization reactor 1, this will certainly make polymer beads generation temperature runaway, affects polymer quality and the safety of Propylene Pre-polymerization reactor 1.Therefore, this utility model cools down Propylene Pre-polymerization reactor 1 is internal also by interior chiller 8 simultaneously.This utility model carries out the cooling of three aspects by cylinder and low head chuck, upper cover chiller and interior chiller to material, increases heat exchange area；Improve heat exchange efficiency；Avoid causing prepolymerization speed out of control because Propylene Pre-polymerization reaction temperature is overheated, it is to avoid produce hot localised points, improve the homogeneity of Propylene Pre-polymerization reactor 1 materials inside temperature.Polymer quality and the safety of Propylene Pre-polymerization reactor 1 can be improved simultaneously, expand the scale of Propylene Pre-polymerization reactor 1.
Preferably, in the present embodiment, described interior chiller 8 is cooling tube.This utility model arranges agitating device and interior cooling tube in the inside of Propylene Pre-polymerization reactor 1, agitating device plays and makes the material in Propylene Pre-polymerization reactor 1 and the well-mixed effect of heat, and on the one hand interior cooling tube plays the effect of cooling Propylene Pre-polymerization reactor 1 materials inside；On the other hand, interior cooling tube in this utility model also acts as the effect of still Internal baffle, interior cooling tube plays the regular motion upsetting material, in making Propylene Pre-polymerization reactor 1, stirring is more abundant, it is not easily formed whirlpool, it is not easy to form focus, thus effectively avoids polymerization slurry generation temperature runaway, it is ensured that polymer quality and Propylene Pre-polymerization reactor 1 safety.
Interior chiller 8 can be the cooling tube of various types.
The structural representation of the interior chiller 8 in the Propylene Pre-polymerization reactor 1 that Fig. 4 provides for a kind of embodiment of this utility model；As shown in Figure 4, described interior cooling tube is along described cylinder twist；It is to say, interior cooling tube carries out spiral winding with the bearing of trend along cylinder.
Spiral interior cooling tube described above increases interior chiller 8 and the contact area of material, improves heat exchange area per unit volume, improves heat exchange efficiency, it is ensured that the homogeneity of product.
The structural representation of the interior chiller 8 in the Propylene Pre-polymerization reactor 1 that Fig. 5 provides for this utility model another kind embodiment.As it is shown in figure 5, described interior cooling tube includes longitudinal arm that multiple head and the tail are sequentially connected with, the bearing of trend of each described longitudinal arm is parallel with the bearing of trend of described cylinder 3.It may also be said that interior cooling tube is S-shaped.Longitudinal arm can preferably play baffle effect, is preferably come by material dispersion so that the stirring of agitating device is evenly.
Upper cover chiller 7 in this utility model is upper cover 4 cooling coil or upper cover 4 cooling jacket, and other chillers being suitable for.
Fig. 2 is the structural representation of the Propylene Pre-polymerization reactor 1 upper cover chiller 7 of a kind of embodiment of this utility model.In the embodiment shown in Figure 2, upper cover chiller 7 is upper cover 4 cooling coil.Upper cover 4 cooling coil is wrapped on the outer wall of upper cover 4.
Fig. 3 is the structural representation of the Propylene Pre-polymerization reactor 1 upper cover chiller 7 of this utility model another kind embodiment.In the embodiment shown in fig. 3, upper cover chiller 7 is upper cover 4 cooling jacket.
Wherein, described agitating device is the various agitators that can play stirring action.
As it is shown in figure 1, be provided with chuck Internal baffle 9 in described cylinder and low head chuck 6.Chuck Internal baffle 9 can be wound on the outer wall of cylinder twist.The present embodiment can avoid fluid short by setting up chuck Internal baffle 9, increases flow velocity, makes the cooling medium in cylinder and low head chuck 6 flow with turbulence state, improves heat exchange efficiency.
In addition, one end of described cylinder and low head chuck 6 is cylinder and low head chuck cooling medium inlet 12, the other end of described cylinder and low head chuck 6 is cylinder and low head chuck cooling medium outlet 13, wherein, described cylinder and low head chuck cooling medium inlet 12 are positioned at the bottom of described low head 5, described cylinder and low head chuck cooling medium outlet 13 and are arranged on the top of described cylinder 3.
Cooling medium in cylinder and low head chuck 6 enters from the bottom of low head 5, discharge from the top of cylinder 3, as can be seen here, cooling medium is upstream, this mode increases cooling medium and cylinder 3 and the time of contact of low head 5, extend the time of heat exchange, improve heat exchange efficiency further.
Additionally, described cylinder and low head chuck cooling medium inlet 12 or cylinder and low head chuck cooling medium export and are provided with cylinder at 13 and low head cooling medium controls valve 18, to control the flow of the cooling medium in described cylinder and low head chuck 6.It can be flow control valve, such as choke valve, flow speed control valve etc. that low head 5 cooling medium controls valve.Propylene Pre-polymerization reactor 1 in the present embodiment has controllability, can be when technological parameter includes that operating temperature, operation pressure, the time of staying, catalyst concn etc. adjusts, controlling valve 18 by cylinder and low head cooling medium provides bigger cold to take heat adjustment space, thus the aperture of valve is controlled according to temperature flexible low head 5 cooling medium of Propylene Pre-polymerization reactor 1, make the temperature of Propylene Pre-polymerization reactor 1 maintain optimal temperature.
Further, one end of described interior chiller 8 is interior chiller cooling medium inlet 14, and the other end of described interior chiller 8 is interior chiller cooling medium outlet 15；Described interior chiller cooling medium inlet 14 or interior chiller cooling medium export and are provided with interior cooling medium control valve 19 at 15, to control the flow of the cooling medium in described interior chiller 8.It can be flow control valve, such as choke valve, flow speed control valve etc. that interior cooling medium controls valve 19.Propylene Pre-polymerization reactor 1 in the present embodiment has controllability, can be when technological parameter includes that operating temperature, operation pressure, the time of staying, catalyst concn etc. adjusts, controlling valve 19 by interior cooling medium provides bigger cold to take heat adjustment space, thus the aperture of valve 19 is controlled according to cooling medium in the temperature flexible of Propylene Pre-polymerization reactor 1, make the temperature of Propylene Pre-polymerization reactor 1 maintain optimal temperature.
Further, one end of described upper cover chiller 7 is upper cover chiller cooling medium inlet 16, the other end of described upper cover chiller 7 is upper cover chiller cooling medium outlet 17, described upper cover chiller cooling medium inlet 16 or upper cover chiller cooling medium export and are provided with upper cover cooling medium control valve 20 at 17, to control the flow of the cooling medium in described upper cover chiller 7.It can be flow control valve, such as choke valve, flow speed control valve etc. that upper cover cooling medium controls valve 20.Propylene Pre-polymerization reactor 1 in the present embodiment has controllability, can be when technological parameter includes that operating temperature, operation pressure, the time of staying, catalyst concn etc. adjusts, controlling valve 20 by upper cover cooling medium provides bigger cold to take heat adjustment space, thus the aperture of valve 20 is controlled according to the temperature flexible upper cover cooling medium of Propylene Pre-polymerization reactor 1, make the temperature of Propylene Pre-polymerization reactor 1 maintain optimal temperature.
As shown in Figure 1, raw material propylene and catalyst are sent into Propylene Pre-polymerization reactor 1 from Propylene Pre-polymerization reactor 1 top material import 10, cooling medium is leaded up to cooling medium inlet and is entered cylinder 3 and low head 5 chuck, cooling medium inlet of leading up to enters upper cover chiller 7, cooling medium inlet of also leading up to enters interior chiller 8, and control valve by low head 5 cooling medium respectively, interior cooling medium controls valve 19 and low head 5 cooling medium controls valve regulated cooling medium (cooling medium can be water) flow, cooling medium exports 13 through cylinder and low head chuck cooling medium after absorbing heat respectively, upper cover chiller cooling medium outlet 17, interior chiller cooling medium outlet 15 outflow.In cylinder 3, material is fully contacted with catalyst, mixes, and under uniform temperature, pressure, carries out prepolymerization by agitator effect.Slurry after prepolymerization delivers to carry out propene polymerization reactor polyreaction from Propylene Pre-polymerization reactor 1 bottoms material outlet 11.
This utility model is by changing Propylene Pre-polymerization reactor thermal withdrawal mode, including internal structure and the change of external structure, i.e. outside by cooling down, inside is cooled down by agitating device and interior cooling tube, substantially increase Propylene Pre-polymerization reactor 1 heat exchange area per unit volume and heat exchange efficiency, reach to reduce the deficiency purpose to the restriction of device single line production capacity of Propylene Pre-polymerization reactor unit volume exchange capability of heat, thus expansion instrument single line production scale.
Specifically, the present embodiment provides a kind of Propylene Pre-polymerization reactor 1, and wherein, upper cover 4 coil pipe external diameter is x, 15mm≤x≤150mm, and adjacent disc tube hub spacing is y, y ＞ 15mm side by side；The a width of z of cooling jacket inner chamber, 20mm≤z≤150mm；Described interior chiller 8 in cylinder 3, a length of c of its middle cylinder body 3；Described agitating device in cylinder 3, wherein agitating device radius e；Described interior chiller 8 can be interior cooling coil or interior cooling vertical tube, and wherein interior cooling coil external diameter is α, 15mm≤α≤150mm, and adjacent disc tube hub spacing is β, β ＞ 15mm side by side；Interior cooling vertical tube external diameter is γ, 15mm≤γ≤150mm；Inside described interior cooling tube, outer span cylinder 3 center is f, wherein e ＜ f.Various parameters in the Propylene Pre-polymerization reactor 1 that the present embodiment provides, it is possible to ensure good cooling effect, improve heat exchange area per unit volume and heat exchange efficiency further, improve the quality of polymer.
Last it is noted that various embodiments above is only in order to illustrate the technical solution of the utility model, it is not intended to limit；Although this utility model being described in detail with reference to foregoing embodiments, it will be understood by those within the art that: the technical scheme described in foregoing embodiments still can be modified by it, or the most some or all of technical characteristic is carried out equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of this utility model each embodiment technical scheme.
Claims (10)
1. a Propylene Pre-polymerization reactor, it is characterised in that include upper cover, cylinder and the low head being from top to bottom sequentially connected with；Described upper cover is provided with material inlet, and described low head is provided with material outlet；
Wherein, the outer wall of described cylinder and described low head is provided with cylinder and low head chuck, and described upper cover is provided with upper cover chiller, is provided with agitating device and interior chiller in described cylinder.
Propylene Pre-polymerization reactor the most according to claim 1, it is characterised in that described interior chiller is interior cooling tube.
Propylene Pre-polymerization reactor the most according to claim 1, it is characterised in that described interior cooling tube is along described cylinder twist；
Or
Described interior cooling tube includes longitudinal arm that multiple head and the tail are sequentially connected with, and the bearing of trend of each described longitudinal arm is parallel with the bearing of trend of described cylinder.
Propylene Pre-polymerization reactor the most according to claim 1, it is characterised in that described upper cover chiller is upper cover cooling coil or upper cover cooling jacket.
Propylene Pre-polymerization reactor the most according to claim 1, it is characterised in that described agitating device is agitator.
Propylene Pre-polymerization reactor the most according to claim 1, it is characterised in that be provided with chuck Internal baffle in described cylinder and low head chuck.
7. according to the Propylene Pre-polymerization reactor according to any one of claim 1-6, it is characterized in that, one end of described cylinder and low head chuck is cylinder and low head chuck cooling medium inlet, the other end of described cylinder and low head chuck is cylinder and the outlet of low head chuck cooling medium, wherein, described cylinder and low head chuck cooling medium inlet are positioned at the bottom of described low head, described cylinder and the outlet of low head chuck cooling medium and are arranged on the top of described cylinder.
Propylene Pre-polymerization reactor the most according to claim 7, it is characterized in that, described cylinder and low head chuck cooling medium inlet or exit are provided with cylinder and low head cooling medium controls valve, to control the flow of the cooling medium in described cylinder and low head chuck.
9., according to the Propylene Pre-polymerization reactor according to any one of claim 1-6, it is characterised in that one end of described interior chiller is interior chiller cooling medium inlet, the other end of described interior chiller is the outlet of interior chiller cooling medium；Described interior chiller cooling medium inlet or exit are provided with interior cooling medium and control valve, to control the flow of the cooling medium in described interior chiller.
10. according to the Propylene Pre-polymerization reactor according to any one of claim 1-6, it is characterized in that, one end of described upper cover chiller is upper cover chiller cooling medium inlet, the other end of described upper cover chiller is the outlet of upper cover chiller cooling medium, described upper cover chiller cooling medium inlet or exit are provided with upper cover cooling medium and control valve, to control the flow of the cooling medium in described upper cover chiller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521128854.4U CN205435719U (en) | 2015-12-29 | 2015-12-29 | Propylene is polymerization cauldron in advance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521128854.4U CN205435719U (en) | 2015-12-29 | 2015-12-29 | Propylene is polymerization cauldron in advance |
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| Publication Number | Publication Date |
|---|---|
| CN205435719U true CN205435719U (en) | 2016-08-10 |
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| CN201521128854.4U Active CN205435719U (en) | 2015-12-29 | 2015-12-29 | Propylene is polymerization cauldron in advance |
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| Country | Link |
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| CN (1) | CN205435719U (en) |
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