CN106732266B - A kind of big volume propylene polymeric kettle - Google Patents
A kind of big volume propylene polymeric kettle Download PDFInfo
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- CN106732266B CN106732266B CN201611168640.9A CN201611168640A CN106732266B CN 106732266 B CN106732266 B CN 106732266B CN 201611168640 A CN201611168640 A CN 201611168640A CN 106732266 B CN106732266 B CN 106732266B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
- B01J19/0013—Controlling the temperature of the process
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
- B01J19/0066—Stirrers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
- B01J19/20—Stationary reactors having moving elements inside in the form of helices, e.g. screw reactors
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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
- C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F10/04—Monomers containing three or four carbon atoms
- C08F10/06—Propene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
- B01J2219/00087—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor
- B01J2219/00092—Tubes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
- B01J2219/00087—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor
- B01J2219/00094—Jackets
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Accessories For Mixers (AREA)
Abstract
The present invention relates to a kind of big volume propylene polymeric kettles, including motor, retarder, upper cover, inner cylinder, lower head and agitating shaft, it is characterized by: being welded with upper chuck on the outer wall of inner cylinder top half, spiral shape baffle upper plate is equipped between upper chuck and inner cylinder top half, thus upper spiral shape cooling water channel is constituted, the upper coolant intake and upper cooling water outlet mouth being connected to upper spiral shape cooling water channel are equipped on upper chuck outer wall；Lower chuck is welded on the outer wall of inner cylinder lower half portion and lower head, spiral shape chin spoiler between lower chuck and inner cylinder lower half portion and lower head, thus lower spiral shape cooling water channel is constituted, the lower coolant intake and lower cooling water outlet mouth being connected to lower spiral shape cooling water channel are equipped on lower chuck outer wall.The present invention strengthens the mixing effect of propylene polymeric kettle, enhances Flow of Goods and Materials, improve exchange capability of heat, so that output per single reactor and product quality are improved by strengthening stirring and heat exchange property.
Description
Technical field
The present invention relates to a kind of big volume propylene polymeric kettles, specifically a kind of for using batch liquid bulk polymerization
Big volume propylene polymeric kettle, belong to chemical mechanical equipment field.
Background technique
Propylene polymeric kettle is to prepare polyacrylic chemical industry equipment.In the prior art, propylene polymeric kettle is mostly double ribbons
Stirring system, its structure is complicated, processing difficulties, and consumption power is larger.And propylene polymerization is an exothermic reaction, for
Bulk polymerization, due to density of propylene height, reaction is fierce, therefore cooling is the key that control reaction.Cooling effect and heat exchange are tied
Structure is closely related, and traditional heat exchange structure is usually dactylethrae, and Flow of Goods and Materials and exchange capability of heat are general, to further increasing product
Yield and quality, which is formed, to be restricted.
Summary of the invention
It is an object of the present invention to overcome the shortcomings of the prior art and provide a kind of big volume propylene for improving structure
Polymeric kettle strengthens the mixing effect of propylene polymeric kettle, enhances Flow of Goods and Materials, mention by strengthening stirring and heat exchange property
High exchange capability of heat, so that output per single reactor and product quality are improved.
According to technical solution provided by the invention: a kind of big volume propylene polymeric kettle, including motor, retarder, upper cover,
Inner cylinder, lower head and agitating shaft, the upper and lower side of the inner cylinder distinguish sealing welding upper cover, lower head, inner cylinder, upper cover and under
The autoclave body of end socket composition sealing；Upper flange is equipped at the top of the upper cover, rack is fixed on upper flange, and motor is installed in rack
And retarder；The agitating shaft is vertically arranged in autoclave body center, the output axis connection of agitating shaft and retarder, installs on agitating shaft
There is blender；It is characterized by: upper chuck is welded on the outer wall of the inner cylinder top half, upper chuck and inner cylinder top half
Between be equipped with spiral shape baffle upper plate, upper chuck, inner cylinder top half and spiral shape baffle upper plate constitute upper spiral shape cooling water
Road is equipped with upper coolant intake on upper chuck lower end outer wall, and upper cooling water outlet mouth is equipped on the outer wall of upper chuck upper end, described
Upper coolant intake and upper cooling water outlet mouth are connected to upper spiral shape cooling water channel；The inner cylinder lower half portion and lower head it is outer
Lower chuck is welded on wall, spiral shape chin spoiler between the lower chuck and inner cylinder lower half portion and lower head is lower chuck, interior
Cylinder lower half portion, lower head and spiral shape chin spoiler constitute lower spiral shape cooling water channel, are equipped on lower chuck lower end outer wall
Lower coolant intake is equipped with lower cooling water outlet mouth, the lower coolant intake and lower cooling water outlet on the outer wall of lower chuck upper end
Mouth is connected to lower spiral shape cooling water channel；It is tightly connected between the upper chuck and lower chuck by collet spacer ring.
As a further improvement of the present invention, at least one set of U-shaped heat exchanger tube, the U-shaped heat exchange are equipped with inside the inner cylinder
Pipe is fixed on inner cylinder inner wall by support frame, and at least one set of U-shaped heat exchanger tube is circumferentially uniformly distributed on inner cylinder inner wall；The U-shaped changes
Heat pipe includes inner and outer tubes, and spiral deflector is provided between inner tube and outer tube, and inner tube, outer tube and spiral deflector constitute spiral shell
Eddy flow road；Water inlet pipe and outlet pipe are connected on the U-shaped heat exchanger tube, the water inlet pipe is connected to helical flow path one end, spiral
The runner other end is connected to inner tube one end, and the inner tube other end is connected to the outlet pipe, and the water inlet pipe and outlet pipe are through setting
It sets on the inner cylinder and upper chuck.
As a further improvement of the present invention, the water inlet direction of the lower coolant intake is lower spiral shape cooling water channel
Tangential direction.
As a further improvement of the present invention, the blender includes double helix band stirrer paddle, single ribbon stirrer paddle
With straight agitating paddle, the double helix band stirrer paddle is fixed on agitating shaft lower end, and the list ribbon stirrer paddle is fixed on stirring
Axis top, the straight agitating paddle are fixed on agitating shaft lower part and are located above double helix band stirrer paddle.
As a further improvement of the present invention, the double helix band stirrer paddle passes through first pair of overarm brace and second pair
Overarm brace is fixedly mounted on agitating shaft, and first pair of overarm brace and second pair of next Shangdi of overarm brace one are fixed on stirring
It axis lower end and is mutually perpendicular to, the double helix includes two symmetrically arranged bottom spiral shells with elevating screw face with stirrer paddle
Band, bottom ribbon lower end are fixedly connected with the crossbeam outer end of first pair of overarm brace, bottom ribbon upper end and second pair of cross
The crossbeam outer end of boom support is fixedly connected；The list ribbon stirrer paddle is fixed by single-beam bracket and the double overarm braces of third
It is mounted on agitating shaft, several single-beam brackets are equidistantly fixed on agitating shaft top, the double overarm brace settings of the third
It the top of the single-beam bracket of the top and is fixed on agitating shaft, the list ribbon stirrer paddle includes a continuously smooth
Ribbon with elevating screw face, single ribbon stirrer paddle lower end are fixedly connected with the beam-end of second pair of overarm brace, single
Ribbon stirrer paddle upper end is fixedly connected with the beam-end of the double overarm braces of third.
As a further improvement of the present invention, first pair of overarm brace includes clip shell and two crossbeams, the clip shell
Hoop holding-solid is scheduled on the agitating shaft, and two crossbeams are fixed on the clip shell outer wall, and the length direction of two crossbeams is located at same
On one straight line, the crossbeam is section from inner end gradually smaller non-uniform beam outward；Second pair of overarm brace and
The structure of three pairs of overarm braces is identical as first pair of overarm brace, and the difference of the single-beam bracket and first pair of overarm brace is only
It is to have lacked a crossbeam.
As a further improvement of the present invention, the perpendicular fagging of the bottom of the crossbeam, the crossbeam bottom of the perpendicular fagging
While the angle of crossbeam bottom edge and horizontal direction is 12 ~ 20 ° from inner end gradually inclination upwards outward.
As a further improvement of the present invention, the helix angle in ribbon elevating screw face is 13 ~ 19 °.
As a further improvement of the present invention, the helix angle in the bottom ribbon elevating screw face is 10 °.
As a further improvement of the present invention, the lower chuck bottom and the design of lower flange junction have flexible structure；Institute
Stating design at the temperature-measuring port of inner cylinder has flexible structure.
Compared with the prior art, the invention has the following advantages: structure of the invention is ingenious, design rationally, is stirred by strengthening
Heat exchange property is mixed and stirred, the mixing effect of propylene polymeric kettle is strengthened, enhances Flow of Goods and Materials, improve exchange capability of heat, to make
It obtains output per single reactor and product quality is improved.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention.
Fig. 2 is the structure enlargement diagram of blender in Fig. 1.
Fig. 3 is the structural schematic diagram of first pair of overarm brace.
Specific embodiment
Below with reference to specific drawings and examples, the invention will be further described.
As shown in the figure；Big volume propylene polymeric kettle in embodiment mainly by motor 1, retarder 2, shaft coupling 3, rack 4,
Axle envelope 5, upper flange 6, upper cover 7, interior shaft coupling 8, outlet pipe 9, water inlet pipe 10, agitating shaft 11, inner cylinder 12, upper chuck 13, spiral shell
Revolve shape baffle upper plate 14, upper coolant intake 15, lower chuck 16, spiral shape chin spoiler 17, U-shaped heat exchanger tube 18, support frame 19,
Lower head 20, double helix band stirrer paddle 21, straight agitating paddle 22, lower flange 23, lower coolant intake 24, temperature-measuring port 25, single spiral shell
Band stirrer paddle 26, lower cooling water outlet mouth 27, collet spacer ring 28,29, first pairs, upper cooling water outlet mouth overarm brace 30, second pairs
The compositions such as the double overarm braces 33 of overarm brace 31, single-beam bracket 32, third, clip shell 34 and crossbeam 35.
As shown in Figure 1, the upper and lower side of the inner cylinder 12 distinguishes sealing welding upper cover 7, lower head 20, inner cylinder 12, upper envelope
First 7 and lower head 20 composition sealing autoclave body；Upper flange 6 is equipped at the top of the upper cover 7, rack 4 is fixed on upper flange 6,
Motor 1 and retarder 2 are installed in rack 4；The agitating shaft 11 is vertically arranged in autoclave body center, agitating shaft 11 and retarder 2
Axis connection is exported, blender is installed on agitating shaft 11.
As shown in Figure 1, upper chuck 13 is welded on the outer wall of 12 top half of inner cylinder, in upper chuck 13 and inner cylinder 12
Spiral shape baffle upper plate 14 is equipped between half part, upper chuck 13,12 top half of inner cylinder and spiral shape baffle upper plate 14 are constituted
Upper spiral shape cooling water channel is equipped with upper coolant intake 15, on 13 upper end outer wall of upper chuck on 13 lower end outer wall of upper chuck
Equipped with upper cooling water outlet mouth 29, the upper coolant intake 15 and upper cooling water outlet mouth 29 are connected to upper spiral shape cooling water channel；
Lower chuck 16, the lower chuck 16 and 12 lower half of inner cylinder are welded on the outer wall of 12 lower half portion of inner cylinder and lower head 20
Divide the spiral shape chin spoiler 17 between lower head 20, is led under lower chuck 16,12 lower half portion of inner cylinder, lower head 20 and spiral shape
Flowing plate 17 constitutes lower spiral shape cooling water channel, lower coolant intake 24 is equipped on 16 lower end outer wall of lower chuck, in lower chuck 16
Upper end outer wall is equipped with lower cooling water outlet mouth 27, the lower coolant intake 24 and lower cooling water outlet mouth 27 and lower spiral shape is cooling
Water channel connection；It is tightly connected between the upper chuck 13 and lower chuck 16 by collet spacer ring 28.
In the present invention, six groups of U-shaped heat exchanger tubes 18 are equipped with inside the inner cylinder 12, the U-shaped heat exchanger tube 18 passes through support frame
19 are fixed on 12 inner wall of inner cylinder, and six groups of U-shaped heat exchanger tubes 18 are circumferentially uniformly distributed on 12 inner wall of inner cylinder；The U-shaped heat exchanger tube 18 wraps
Inner and outer tubes are included, spiral deflector is provided between inner tube and outer tube, inner tube, outer tube and spiral deflector constitute spiral flow
Road；Water inlet pipe 10 and outlet pipe 9 are connected on the U-shaped heat exchanger tube 18, the water inlet pipe 10 is connected to helical flow path one end, spiral shell
The eddy flow road other end is connected to inner tube one end, and the inner tube other end is connected to the outlet pipe 9, the water inlet pipe 10 and outlet pipe 9
Through setting on the inner cylinder 12 and upper chuck 13.When work, cooling water flows into the spiral shell between inner tube and outer tube from water inlet pipe 10
The one end in eddy flow road is flowed out after then passing through entire helical flow path from inner tube, to take away heat, reduces temperature in the kettle.
In terms of cooling, the present invention is changed by using the jacket structured and internal six group U-shaped heat exchanger tube 18 with deflector
Heat area is big compared with traditional dactylethrae, and can play certain baffle effect, and cooling effect is more stable compared with the prior art, meets just
The needs often produced and use.
As shown in Figure 1, the water inlet direction of the lower coolant intake 24 is lower spiral shape cooling water channel in the present embodiment
Tangential direction.Resistance when cooling water circulation can be reduced in this way, so that cooling water and 12 material of inner cylinder is generated adverse current, improved and change
Thermal effect.
Since the phase of material in the polymeric kettle of interval hypoxic training device is time to time change, open
It is liquid propylene that kettle is interior when beginning to react, with the extension of reaction time, the polypropylene solid to suspend in liquid propylene
Grain gradually increases, and after terminating especially propylene recovery to " dry pot " reaction, almost all is solid polypropylene particle in kettle.Therefore
Guarantee that good mixing effect, blender are crucial.For this purpose, the present invention designs, one kind is as shown in Figure 1 and Figure 2 to be capable of providing
The blender of composite stirring, the blender is mainly by double helix band stirrer paddle 21, single ribbon stirrer paddle 26 and straight agitating paddle
22 compositions, the double helix band stirrer paddle 21 are fixed on 11 lower end of agitating shaft, and the list ribbon stirrer paddle 26, which is fixed on, to be stirred
11 top of axis is mixed, the straight agitating paddle 22 is fixed on 11 lower part of agitating shaft and is located at 21 top of double helix band stirrer paddle.
As shown in Figure 1 and Figure 2, the double helix band stirrer paddle 21 passes through first pair of overarm brace 30 and second pair of crossbeam
Bracket 31 is fixedly mounted on agitating shaft 11, and first pair of overarm brace 30 and second pair of next Shangdi of overarm brace 31 1 are fixed on
It 11 lower end of agitating shaft and is mutually perpendicular to, the double helix band stirrer paddle 21, which includes two, symmetrically arranged has elevating screw face
Bottom ribbon 21.1,21.1 lower end of bottom ribbon is fixedly connected with 35 outer end of crossbeam of first pair of overarm brace 30, bottom
Ribbon 21.1 upper end in portion's is fixedly connected with 35 outer end of crossbeam of second pair of overarm brace 31.In the present invention, the bottom ribbon
The helix angle in 21.1 elevating screw faces is preferably arranged to 10 °.
As shown in Figure 1 and Figure 2, single ribbon stirrer paddle 26 passes through single-beam bracket 32 and the double overarm braces 33 of third
It is fixedly mounted on agitating shaft 11, several single-beam brackets 32 are equidistantly fixed on 11 top of agitating shaft, and the third is double horizontal
Boom support 33 is arranged the top of the single-beam bracket 32 of the top and is fixed on agitating shaft 11, the list ribbon stirrer paddle 26
The ribbon 26.1 with elevating screw face including a continuously smooth, single 26 lower end of ribbon stirrer paddle and second pair of crossbeam branch
35 end of crossbeam of frame 31 is fixedly connected, and 35 end of crossbeam of single 26 upper end of ribbon stirrer paddle and the double overarm braces 33 of third is solid
Fixed connection.In the present invention, the helix angle in the 26.1 elevating screw face of ribbon is preferably arranged to 13 ~ 19 °.
In the present invention, since bottom ribbon 21.1 also has certain helix angle, and the bottom of bottom ribbon 21.1
Shape and 20 inner wall curvature of lower head are coincide, so as to so that material and catalyst realize the uniform stirring without dead angle to turning over.
And straight agitating paddle 22 can also turn over material, reduce material in the aggregation of reactor bottom, it is ensured that material is without caking phenomenon, surely
Fixed output quota quality.Since ribbon 26.1 has the elevating screw face of continuously smooth, so as to effectively push material upwards, to centre
Movement, material is fully dispersed to the intracorporal collet of kettle and 18 position of U-shaped heat exchanger tube, and contacting repeatedly with heat-transfer surface obtains material
Heat exchange.The material of entrance can be rapidly dispersed into entire autoclave body simultaneously, in this way, the component in autoclave body in any point will
Tend to average composition, therefore the reaction rate in any point is approximately equal.
As shown in Fig. 1 ~ Fig. 3, first pair of overarm brace 30 is mainly made of clip shell 34 and two crossbeams 35, the folder
Shell 34 binds round holding-solid and is scheduled on the agitating shaft 11, and two crossbeams 35 are fixed on 34 outer wall of clip shell, the length of two crossbeams 35
Degree direction is located along the same line, and the crossbeam 35 is section from inner end gradually smaller non-uniform beam outward.Variable cross-section is set
Meter reduces crossbeam 35 to the resistance of material, reduces power consumption.Second pair of overarm brace 31 and the double overarm braces 33 of third
Structure it is identical as first pair of overarm brace 30, the difference of the single-beam bracket 32 and first pair of overarm brace 30 is only that few
Piece crossbeam 35, therefore details are not described herein again.
As shown in Figure 1 and Figure 2, in the present embodiment, 35 bottom edge of crossbeam gradually tilts upwards outward from inner end, crossbeam
The angle α of 35 bottom edges and horizontal direction is 12 ~ 20 °.
The blender that the present invention designs is not only simple in structure, is easy to process, and proves by actual use, is obviously dropping
Under the premise of low consumpting power, operation is also more stable, and the lower stir current of heavy duty does not also fluctuate significantly.For reaction kettle bottom
Portion be also easy to produce polypropylene plasticizing block the phenomenon that can successfully manage.
As shown in Figure 1,16 bottom of lower chuck and the design of 23 junction of lower flange have flexible structure in the present embodiment,
Design has flexible structure at the temperature-measuring port 25 of the inner cylinder 12.Flexible structure is special for polypropylene production at of the invention two
Point --- being used alternatingly for hot water or cold water in collet and design, flexible structure can fully absorb due in collet hot and cold water replace
The thermal (temperature difference) stress of generation improves the structural strength and service life of equipment.
As shown in Figure 1, the agitating shaft 11 includes agitating shaft upper section 11.1 and agitating shaft lower section 11.2 in the present embodiment,
The upper end of agitating shaft upper section 11.1 passes through the output axis connection of shaft coupling 3 and speed reducer, and agitating shaft upper section 11.1 is installed on axle envelope 5
Interior, axle envelope 5 is fixed in rack 4, the setting of agitating shaft lower section 11.2 in the intracorporal center of kettle, agitating shaft lower section 11.2 it is upper
End is connect with the lower end of agitating shaft upper section 11.1 by interior shaft coupling 8 integral.Axle envelope 5 in the present invention can be used according to user
Habit selection packing seal or mechanical seal.
Claims (6)
1. a kind of big volume propylene polymeric kettle, including motor (1), retarder (2), upper cover (7), inner cylinder (12), lower head
(20) and agitating shaft (11), the upper and lower side of the inner cylinder (12) distinguish sealing welding upper cover (7), lower head (20), inner cylinder
(12), the autoclave body of upper cover (7) and lower head (20) composition sealing；Upper flange (6) are equipped at the top of the upper cover (7), rack
(4) it is fixed on upper flange (6), motor (1) and retarder (2) is installed in rack (4)；The agitating shaft (11) is vertically arranged in
Autoclave body center, the output axis connection of agitating shaft (11) and retarder (2), agitating shaft are equipped with blender on (11)；The stirring
Device includes double helix band stirrer paddle (21), single ribbon stirrer paddle (26) and straight agitating paddle (22), the double helix band stirring
Blade (21) is fixed on agitating shaft (11) lower end, and the list ribbon stirrer paddle (26) is fixed on agitating shaft (11) top, described
Straight agitating paddle (22) is fixed on agitating shaft (11) lower part and is located above double helix band stirrer paddle (21)；
It is characterized by: being welded with upper chuck (13) on the outer wall of inner cylinder (12) top half, upper chuck (13) and inner cylinder
(12) spiral shape baffle upper plate (14) are equipped between top half, in upper chuck (13), inner cylinder (12) top half and spiral shape
Spiral shape cooling water channel in deflector (14) composition is equipped with upper coolant intake (15) on upper chuck (13) lower end outer wall,
Upper chuck (13) upper end outer wall is equipped with upper cooling water outlet mouth (29), the upper coolant intake (15) and upper cooling water outlet mouth
(29) it is connected to upper spiral shape cooling water channel；Lower folder is welded on the outer wall of inner cylinder (12) lower half portion and lower head (20)
It covers (16), spiral shape chin spoiler (17) between the lower chuck (16) and inner cylinder (12) lower half portion and lower head (20), under
Collet (16), inner cylinder (12) lower half portion, lower head (20) and spiral shape chin spoiler (17) constitute lower spiral shape cooling water channel,
Lower coolant intake (24) are equipped on lower chuck (16) lower end outer wall, lower cooling is equipped on the outer wall of lower chuck (16) upper end and is gone out
The mouth of a river (27), the lower coolant intake (24) and lower cooling water outlet mouth (27) are connected to lower spiral shape cooling water channel；On described
It is tightly connected between collet (13) and lower chuck (16) by collet spacer ring (28)；The water inlet side of the lower coolant intake (24)
To the tangential direction for lower spiral shape cooling water channel；
Double helix band stirrer paddle (21) passes through first pair of overarm brace (30) and the fixed peace of second pair of overarm brace (31)
On agitating shaft (11), first pair of overarm brace (30) and second pair of next Shangdi of overarm brace (31) one are fixed on agitating shaft
(11) it lower end and is mutually perpendicular to, the double helix, which includes two with stirrer paddle (21), symmetrically arranged has elevating screw face
Bottom ribbon (21.1), the fixed company in crossbeam (35) outer end of bottom ribbon (21.1) lower end and first pair of overarm brace (30)
It connects, ribbon (21.1) upper end in bottom is fixedly connected with crossbeam (35) outer end of second pair of overarm brace (31)；The list ribbon stirs
Blade (26) are mixed to be fixedly mounted on agitating shaft (11) by single-beam bracket (32) and the double overarm braces (33) of third, several
Single-beam bracket (32) is equidistantly fixed on agitating shaft (11) top, the list of the third double overarm brace (33) settings the top
It the top of overarm brace (32) and is fixed on agitating shaft (11), the list ribbon stirrer paddle (26) includes a continuously smooth
The ribbon (26.1) with elevating screw face, the crossbeam of single ribbon stirrer paddle (26) lower end and second pair of overarm brace (31)
(35) end is fixedly connected, and single ribbon stirrer paddle (26) upper end and crossbeam (35) end of the double overarm braces (33) of third are fixed
Connection；
First pair of overarm brace (30) includes clip shell (34) and two crossbeams (35), and clip shell (34) the hoop holding-solid is scheduled on institute
It states on agitating shaft (11), two crossbeams (35) are fixed on the clip shell (34) outer wall, the length direction position of two crossbeams (35)
In on same straight line, the crossbeam (35) is section from inner end gradually smaller non-uniform beam outward；Second pair of crossbeam
The structure of bracket (31) and the double overarm braces (33) of third is identical as first pair overarm brace (30), the single-beam bracket (32)
Difference with first pair of overarm brace (30), which is only that, has lacked a crossbeam (35).
2. big volume propylene polymeric kettle as described in claim 1, it is characterised in that: be equipped at least one inside the inner cylinder (12)
Group U-shaped heat exchanger tube (18), the U-shaped heat exchanger tube (18) are fixed on inner cylinder (12) inner wall by support frame (19), at least one set of U
Shape heat exchanger tube (18) is circumferentially uniformly distributed on inner cylinder (12) inner wall；The U-shaped heat exchanger tube (18) includes inner and outer tubes, inner tube and outer
Spiral deflector is provided between pipe, inner tube, outer tube and spiral deflector constitute helical flow path；On the U-shaped heat exchanger tube (18)
Be connected with water inlet pipe (10) and outlet pipe (9), the water inlet pipe (10) is connected to helical flow path one end, the helical flow path other end with
The connection of inner tube one end, the inner tube other end are connected to the outlet pipe (9), and the water inlet pipe (10) and outlet pipe (9) are through setting
On the inner cylinder (12) and upper chuck (13).
3. big volume propylene polymeric kettle as described in claim 1, it is characterised in that: the perpendicular support of the bottom of the crossbeam (35)
The crossbeam (35) bottom edge of plate, the perpendicular fagging gradually tilts upwards outward from inner end, crossbeam (35) bottom edge and level side
To angle (α) be 12 ~ 20 °.
4. big volume propylene polymeric kettle as described in claim 1, it is characterised in that: ribbon (26.1) the elevating screw face
Helix angle is 13 ~ 19 °.
5. big volume propylene polymeric kettle as described in claim 1, it is characterised in that: bottom ribbon (21.1) elevating screw
The helix angle in face is 10 °.
6. big volume propylene polymeric kettle as described in claim 1, it is characterised in that: lower chuck (16) bottom and lower flange
(23) junction design has flexible structure；Design has flexible structure at the temperature-measuring port (25) of the inner cylinder (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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