CN110370490A - A kind of pre-crystallized technique of PTT continuous polymerization - Google Patents
A kind of pre-crystallized technique of PTT continuous polymerization Download PDFInfo
- Publication number
- CN110370490A CN110370490A CN201910611140.5A CN201910611140A CN110370490A CN 110370490 A CN110370490 A CN 110370490A CN 201910611140 A CN201910611140 A CN 201910611140A CN 110370490 A CN110370490 A CN 110370490A
- Authority
- CN
- China
- Prior art keywords
- crystallized
- ptt
- steam
- tank body
- slice
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/16—Auxiliary treatment of granules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/16—Auxiliary treatment of granules
- B29B2009/165—Crystallizing granules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a kind of pre-crystallized techniques of PTT continuous polymerization, including following technique: (one), the sliced machine of PTT material are sliced, and PTT slice is become；(2), PTT slice is sent to pelleter water coarse filter by discharge bucket and pelletizing preseparator and is tentatively separated by solid-liquid separation, and screens out most of moisture content；(3), moist PTT slice is sent into pre-crystallized device and carries out pre-crystallized and dry and processing；(4), defective products is removed through Vibration Screen by pre-crystallized and dry and processing processing drying PTT slice；(5), storage storage.The beneficial effects of the present invention are: having compact-sized advantage, energy can be converted and diabatic process huge compression, it is easy to produce, packaging, transport and assembling, can Combination Design be various types and specification paddy electricity phase-change energy storage device, have good dissemination to phase-change accumulation energy industry.
Description
Technical field
The present invention relates to experimental branch line technology field, specifically a kind of pre-crystallized technique of PTT continuous polymerization.
Background technique
Polypropylene terephthalate (PTT) is a kind of new aromatic for function admirable that the phase develops at the end of the 20th century
Polyester material.Compared with PET, PBT, its special " odd carbon effect " makes it with unique helicoidal structure and has very
Good elasticity, PTT has the pollution resistance of the flexibility of nylon, the bulkiness of acrylic fibers and terylene simultaneously, while being also easy to dye, and resists
Static behaviour is widely used in the fields such as clothes, industry, decoration and engineering plastics since PTT is had excellent performance.The crystallinity of PTT
Can be between PBT and PET, since the glass transition temperature of PTT is 25-65 DEG C very low, whens industrialized production and application, need to carry out PTT
Pre-crystallized processing prevents that agglomeration problems occur in drying process.Common pre-crystallizer mainly has mechanical agitation type, fluidized bed type
Two kinds.
Chinese patent literature CN2540269Y discloses " the pre-crystallized dress of low melting point polyester chip on March 19th, 2003
Set ", it is the Typical Representative of mechanical agitation type.The program includes cylinder, motor, speed reducer and tapered end socket；The output shaft of motor
With the input axis connection of speed reducer, motor, speed reducer are supported on cylinder flat cover by bracket, and cylinder flat cover passes through flange and cylinder
It is fixedly connected, it is characterized in that there is multiple holes on cylinder lower part wall, feeder pipe, exhaust pipe and air inlet pipe is installed on cylinder；Cone
There are multiple holes on type end socket, tapered end socket is connect with cylinder solid welding；It is installed with agitating shaft in cylinder, is installed on agitating shaft
Multiple stirring wings, the lower part of agitating shaft are protruded into tapered end socket, and the upper end passes through cylinder flat cover, and passes through shaft joint and speed reducer
Output axis connection.
Mechanical agitation type pre-crystallizer is collet heating, and the rotation of stick paddle is uniformly mixed slice.Such as mechanical stirring
Formula pre-crystallizer is pre-crystallized for PTT slice, because the PTT slice that pelleter comes out is easy bonding, ties in advance into mechanical agitation type
The slice moisture of brilliant device is few then easily to be bonded, aqueous more, it is required that bigger heat exchange area or heat transfer intensity.And mechanical agitation type is pre-
Crystallizer is heated by thermal jacket matchmaker, and collet heating surface (area) (HS is unable to adjust, and the temperature of heating agent is also not easy to adjust, thus
It is insufficient to the adaptability of charging slice.Before mechanical agitation type pre-crystallizer starts charging, the 1/3 of about cylinder volume need to be pre-charged with
~1/2 slice improves heat transfer efficiency to prevent from bonding, and slice must be passed full of after pre-crystallizer cylinder, can be only achieved design
Thermal effect.Since paddle is mostly rod iron shape, chip granulate characteristic, which leads to not realize, to be evenly heated, when stopping chip granulate
Between it is uneven；And the heat transfer by heat conduction low efficiency between solid particle, the temperature of chip granulate are also easy unevenly, to cause to be sliced
Crystallinity is uneven.Mechanical agitation type pre-crystallizer also needs mating heating agent supply and the circulatory system, and complicated operation.
Chinese patent literature CN101210772A discloses " the low trampoline of PTT/PET composite full drafting on July 2nd, 2008
PTT slice drying means in reeling " is the Typical Representative of fluidized bed type.The PTT slice of the program uses following drying side
Method: the first step, screening: by PTT slice raw material through feed bin → vibrating screen → impulse generator → another feed bin；Second step, it is pre- to tie
Brilliant: from another feed bin → oscillating feeder → fluidized bed → drying tower, PTT slice stops 5-15 in fluidized bed pre-crystallizer
Minute completes pre-crystallized process；Third step, it is dry: after 4-6 hours high temperature dry airs are dry, to crystallize uniform PTT
The moisture content of slice is up to standard.Drying means of the invention makes the crystallization of PTT dry chip uniformly, and form and aspect are normal, degradation of not turning to be yellow
The phenomenon that；Being sliced moisture content is 50ppm hereinafter, having met the production drying process requirement of PTT-POY preoriented yarn, and meet
With the requirement of PET composite spinning.The phenomenon that not floaing thread, is stablized in PTT dry chip spinning.
Fluidizing fluid-bed formula pre-crystallizer is not suitable for that water content is excessively high, and the material easy to stick to clump together.And pelleter goes out
The PTT slice come is easy bonding after drying, and being directly entered pre-crystallizer without drying, then water content is higher.Meanwhile it tieing up
It holds slice fluidized state and needs Wind Volume hot air circulation, energy consumption is higher, and high velocity impact also easily occurs for chip granulate.
Summary of the invention
Based on problem above, the present invention provides a kind of pre-crystallized technique of PTT continuous polymerization, makes the letter of pre-crystallized and drying process
It is short, adaptability is good, meet technique require under the premise of, reduce investment, energy saving, simplify operation.
In order to realize goal of the invention, the present invention adopts the following technical scheme: a kind of pre-crystallized technique of PTT continuous polymerization, packet
Include following technique:
(1), the sliced machine of PTT material is sliced, and becomes PTT slice；
(2), PTT slice is sent to pelleter water coarse filter by discharge bucket and pelletizing preseparator and is tentatively separated by solid-liquid separation, and screens out
Most of moisture content；
(3), moist PTT slice is sent into pre-crystallized device and carries out pre-crystallized and dry and processing；
(4), defective products is removed through Vibration Screen by pre-crystallized and dry and processing processing drying PTT slice；
(5), storage storage；
Wherein, pre-crystallized device includes columnar tank body, and the longitudinal sealing of tank body, equipped with feed inlet, lower end is equipped with for tank body upper end
Discharge port, tank wall lower section are equipped with steam inlet, and steam (vapor) outlet, the interior height in steam inlet of tank body are equipped with above tank wall
It is equipped between degree and the height of steam (vapor) outlet and is sliced pre-crystallized fast stem structure；The pre-crystallized fast stem structure of slice are as follows: in tank body
Newel is equipped with along axis；Newel is equipped with several inner cone baffles, and inner cone baffle extends along the circular conical surface of regular conical, inside
End is fixed with newel, and gap is equipped between outboard end and tank body inner sidewall；Tank body inner sidewall is equipped with several outer cone baffles, outer cone
Baffle extends along the circular conical surface of inverted conical shape, and outboard end is fixed with tank body inner sidewall, and inner end and center intercolumniation are equipped with gap；It is interior
Cone baffle is staggered correspondingly in the height direction with outer cone baffle.
The pre-crystallized technique of PTT continuous polymerization of the technical program design contains slice, coarse filtration, pre-crystallized and dry, sieve
Divide several big steps.Wherein be sliced selection is pelleter, and the PTT slice that pelleter is cut out is mixed with a large amount of water, nothing
Method directly carries out the pre-crystallized of next step, therefore carries out coarse filtration by pelleter water coarse filter after slice, to remove big portion
The water divided, the operating pressure of the drying steps in road after mitigation.Later, moist PTT slice is sent into pre-crystallized device, it is pre-crystallized and
Drying steps synchronously complete in pre-crystallized device, to improve efficiency.PTT slice is fed to the charging device of pre-crystallized device,
It generally can choose revolution inlet valve etc..PTT slice has been realized in pre-crystallized and drying after the discharge of pre-crystallized device, this
When only need to send PTT slice to vibrating screen to sieve, reject defective products, non-defective unit can store storage, or be sent directly into
In subsequent procedure of processing.If vibrating screen to be directly positioned on to the discharge end of pre-crystallized device, the discharging of pre-crystallized device
End can install revolution outlet valve, first is that sealing as discharge port, second is that can control discharging speed.In the technique
In, core equipment is pre-crystallized device, and main structure is a longitudinal round can, and tank body seals, upper endfeed lower end discharging,
The side wall lower ends of tank body import steam, and steam is discharged in upper end.Design placed in the middle has a newel in tank body, and newel is along tank
Body it is axially extending, height and position is between steam inlet and outlet.Several inner cone baffles are fixed on newel lateral wall, it is interior
It bores baffle to extend along the circular conical surface of regular conical, the high outboard end in inner end is low, and inner end connects newel side wall, and outboard end is
Gap is formed between free end, with tank body inner sidewall, the gap is for steam uplink, material downlink.It is corresponding to it, on the inside of tank body
Also several outer cone baffles are fixed on wall, outer cone baffle extends along the circular conical surface of inverted conical shape, and the high inner end of outboard end is low, outside
Side connects tank body inner sidewall, and inner end is free end, forms gap between newel lateral wall, and the gap is on steam
Row, material downlink.Inner cone baffle is staggered in the height direction with outer cone baffle, typically up to be inner cone baffle, it is minimum
Be outer cone baffle.Inner cone baffle and outer cone baffle may be selected that chemical properties are stable, the enough materials of rigidity are made, such as stainless
Steel.In said structure, material is driven by gravity whereabouts from top, and successively passes through inner cone baffle and outer cone during falling
The staggered inclined-plane that baffle is formed, becomes sliding stepwise, has significantly delayed falling speed from freely falling.In material dropping process
In, it exchanges heat with the steam counter-flow of lower section rise, cross-flow, realizes the pre-crystallized of slice and drying.It is sliced during this and is in semi-fluid
Change state, realizes and comes into full contact with steam, there is strong mixing and dispersion between gas-solid, and heat exchange efficiency is high, and cutting temperature is uniform,
Avoid uneven crystallization.The tapered surface of baffle designs, and material can be made steadily to flow along baffle upper surface, there is no cut
Grain high velocity impact, can prevent the agglomeration of material.Using this pre-crystallized device, pre-crystallized and dry two steps can be once completed
Suddenly, process flow is had compressed, the process time is shortened, reduces equipment occupation space, improves process efficiency, has saved equipment
Cost and process costs.
Preferably, newel is circular hollow tube, upper end closed, lower ending opening connects with steam gas source in outside tank body
It is logical；Hollow tube is equipped with the flow-disturbing hole of several perforation tube walls.Newel is defined as hollow tube by this programme, and lower end extends to tank body
Outside, it is connect with steam gas source, upper end is closed, and flow-disturbing hole is provided on the side wall of hollow tube, and steam is sprayed by flow-disturbing hole, closely
Apart from lasting disturbance material stream, keep dry materials more abundant, pre-crystallized effect is more preferable.In practical applications, steam inlet and
Steam inlet amount in hollow tube can be adjusted, to obtain optimal process matching effect according to process requirements.
Preferably, flow-disturbing hole is divided into several groups, each inner cone baffle root is respectively arranged below one group；Each flow-disturbing in every group
Hole is evenly arranged on the circumference of central tube cross section.The position in flow-disturbing hole has special requirement, to be circular layout each
It is preferred below inner cone baffle root.Flow-disturbing hole is arranged in the position, and air-flow is limited by inner cone baffle, and formation is downward outward to incline
Skewed gas flow direction, and the material slid from this inner cone baffle upper surface are continued when end falls by spraying in flow-disturbing hole
The flow-disturbing of steam, by adjusting flow-disturbing steam flow, thus it is possible to vary fall to the flowing of the upper surface slice of lower section outer cone baffle
Speed and direction are allowed to facilitate the dispersion of material, pre-crystallized and drying in half fluidized state.
Preferably, annular gap is formed between inner cone baffle outboard end and contour tank body inner sidewall, with the gap
Area be S1；Annular gap is formed between outer cone baffle inner end and contour newel lateral wall, with the face in the gap
Product is S2；Sectional area with steam inlet is S3, there is 20*S3≤S1≤50*S3,10*S3≤S2≤40*S3.The location S1, S2
Domain is the narrow location for the runner that material passes through, while being also the position passed through when steam rises, which is material and steam
It is mixed and disperses most fierce region.By adjusting the flow of upflowing vapor, the lower reduction of speed of slice is adjusted with can be convenient
Degree, therefore the size in the region effect with drying pre-crystallized to material has a significant impact.Above-mentioned parameter is inventor according to work
The optimal values range that skill is required, obtained in conjunction with test of many times.
Preferably, newel upper end is convex arched top, feed inlet is located at right above arched top.Material is by feed inlet
It freely falls, just falls in the arched top of newel upper end, can be evenly dispersed by self gravity, without being reconfigured material
Disperser has saved cost, reduces equipment dosage.
Preferably, tank body lower end is back taper, discharge port is located at the end of back taper；It is set on the tank wall of back taper
There is bottom steam import.Material after being sliced pre-crystallized fast stem structure, completes most pre-crystallized and dry above
It is dry, later fall into the tank body lower end of back taper, stay for some time later in tank body lower end, retention period bottom steam import after
It is continuous to import steam, to help material to complete last pre-crystallized and drying.Residence time is by those skilled in the art according to technique
It is required that deciding in its sole discretion.
Preferably, bottom steam import is several, circumferentially it is uniformly distributed on the tank wall of back taper.This sets
Meter ensure that the uniformity of distribution of steam, while can be to avoid the generation of particle bridging phenomenon.
Preferably, being connected with steam distributor on the inside of steam inlet, steam distributor is annular tube type or straight pipe type, steam
Distributor lower part fluting or aperture.Steam is slotted by steam distributor lower part or aperture sprays, and can be evenly distributed in cylinder
It is interior.
Preferably, circle element of a cone and the angle of horizontal direction are 20 ° ~ 55 ° where inner cone baffle and outer cone baffle.It is interior
The gradient of cone baffle and outer cone baffle determines sliding speed of the material again on its inclined upper surface, and influence material with
The action time length of the steam of uplink, aridity and crystallinity to material have an impact.
Preferably, roughness Ra≤0.8 of the upper surface of inner cone baffle and outer cone baffle.Inner cone baffle and outer cone baffle
Upper surface it is preferably bright and clean, avoid material from viscous can not being glided above by stiction effect.
Preferably, tank wall is equipped with several clean-out hatch；Each clean-out hatch is divided into several layers in the height direction, each
Layer includes at least three clean-out hatch, is uniformly distributed along the circumference；The clean-out hatch of same layer is located in adjacent one group in tank body inside opening position
It bores between baffle and the height of outer cone baffle.When necessary by operator outside tank body in tank inner cone baffle and outer cone keep off
Plate carries out manual cleaning.
Preferably, being equipped with visor on each clean-out hatch.It is intracorporal that operator can monitor tank by visor at any time
Handling situations note abnormalities and take necessary treatment measures in time.
In conclusion meeting work the beneficial effects of the present invention are: make that pre-crystallized and drying process is brief, adaptability is good
Under the premise of skill requires, investment, energy saving are reduced, simplifies operation.
Detailed description of the invention
Fig. 1 is process route chart of the invention.
Fig. 2 is the structural schematic diagram of pre-crystallized device of the invention.
Wherein: A pelleter, B discharge bucket, C pelletizing preseparator, D pelleter water coarse filter, E turn round inlet valve, and F is tied in advance
Brilliant device, G turn round outlet valve, H vibrating screen；1 tank body, 2 feed inlets, 3 discharge ports, 4 steam inlets, 5 steam (vapor) outlets, 6 newels,
7 inner cone baffles, 8 outer cone baffles, 9 flow-disturbing holes, 10 bottom steam imports, 11 steam distributors, 12 manholes, 13 clean-out hatch；
Dotted arrow show steam flow in figure, and solid arrow show flow direction of material.
Specific embodiment
The present invention will be further described with specific embodiment with reference to the accompanying drawing.
The present embodiment as shown in Figure 1 is a kind of pre-crystallized technique of PTT continuous polymerization, is applied the 3 of certain PTT manufacturing enterprise
On ten thousand tons/year of PTT polyester serial production lines.
The pre-crystallized technique of PTT continuous polymerization of this example, process are as follows: the PTT slice cut out from pelleter A, through discharge bucket B
After pelletizing preseparator C, most of water is filtered out by pelleter water coarse filter D, pre-crystallized device is sent by revolution inlet valve E
F carries out pre-crystallized and dry；Pre-crystallized and dry PTT pelletizing is completed to be sent by the revolution outlet valve G of adjustable discharging speed
Enter vibrating screen H, sieves qualified pelletizing by pneumatic conveying and be sent into chip bunker storage.
As shown in Fig. 2, the pre-crystallized device used in this technique is equipped with a columnar tank body 1, tank body is longitudinal
And sealing.Tank body upper end is arched top, top it is placed in the middle be equipped with feed inlet 2, lower end is back taper, and the bottom of back taper is set
There is discharge port 3.The lower right of tank wall is equipped with steam inlet 4, and upper right is equipped with steam (vapor) outlet 5.
It is equipped between the height of steam inlet and the height of steam (vapor) outlet in tank body and is sliced pre-crystallized fast stem structure.Ben Qie
The pre-crystallized fast stem structure of piece is to be equipped with newel 6 along axis in tank body；Newel is equipped with several inner cone baffles 7, inner cone baffle
Circular conical surface along regular conical extends, and inner end is fixed with newel, and gap is equipped between outboard end and tank body inner sidewall；In tank body
Side wall is equipped with several outer cone baffles 8, and outer cone baffle extends along the circular conical surface of inverted conical shape, and outboard end and tank body inner sidewall are solid
Fixed, inner end and center intercolumniation are equipped with gap；Inner cone baffle is staggered correspondingly in the height direction with outer cone baffle.
Newel be circular hollow tube, upper end closed, and be equipped with convex arched top, arched top be located at feed inlet underface.It is hollow
Pipe lower ending opening is outer on the left of tank body, is connected to steam gas source；Hollow tube is equipped with the flow-disturbing hole of several perforation tube walls.In this example
Flow-disturbing hole is divided into several groups, and each inner cone baffle root is respectively arranged below one group；Each flow-disturbing hole is in central tube cross section in every group
Circumference on be evenly arranged.Annular gap is formed between inner cone baffle outboard end and contour tank body inner sidewall, with the gap
Area be S1；Annular gap is formed between outer cone baffle inner end and contour newel lateral wall, with the face in the gap
Product is S2；Sectional area with steam inlet is S3, there is 20*S3≤S1≤50*S3,10*S3≤S2≤40*S3.The value of this example
Are as follows: S1=35*S3, S2=25*S3.
Inner cone baffle and outer cone baffle select stainless steel plate to be made, circle element of a cone where inner cone baffle and horizontal direction
Angle is 25 °, and the angle of the circle element of a cone where outer cone baffle and horizontal direction is 25 °.Inner cone baffle and outer cone baffle
Polishing grinding is passed through in upper surface, it is ensured that roughness Ra≤0.8.
The tank wall of back taper is equipped with bottom steam import 10, and in this example, bottom steam import is 8, in back taper
It is circumferentially uniformly distributed on the tank wall of shape.A manhole 12 is additionally provided on the tank wall of back taper, for service personnel
Pass in and out tank body.
It is connected with steam distributor 11 on the inside of steam inlet, in this example, steam distributor is annular tube type, under steam distributor
Portion is equidistantly provided with several apertures, can be evenly arranged in tank body after entering so as to steam.
Tank wall is equipped with several clean-out hatch 13；Each clean-out hatch is divided into several layers in the height direction, each in this example
Layer includes 3 clean-out hatch, is uniformly distributed along the circumference；The clean-out hatch of same layer, which is located at one group of adjacent inner cone in tank body inside opening position, to be kept off
Between plate and the height of outer cone baffle.Visor is equipped on each clean-out hatch.Operator can be observed in tank body by visor
Portion's Flow of Goods and Materials situation, it may be necessary to be cleaned, be kept away by inner cone baffle and outer cone baffle of the clean-out hatch to position
Exempt from material accumulation.
In this pre-crystallized device, moist aqueous slice is fallen from the top down, halfway along inner cone baffle and outer cone baffle
Step inclined plane glide stepwise, during downslide, the slice adverse current strong with steam generation from bottom to top, cross-flow exchange heat,
Make to be sliced pre-crystallized and dry；It is sliced during this and is in half fluidized state, realization comes into full contact with steam, has between gas-solid strong
Strong mixing and dispersion, heat exchange efficiency is high, and cutting temperature is uniform, avoids uneven crystallization.Meanwhile the steam from hollow tube
It sprays, play the role of reinforcing heat exchange and influences slice flow velocity.By adjusting steam rates and temperature, can be well adapted for
It is sliced the variation of water content.Slice is at the tank body lower end for falling to back taper, then stops 20 minutes, by the further of steam
Phenomena such as drying, and being avoided that agglomeration and put up a bridge.Finally, steam is discharged by the steam (vapor) outlet of top, and what drying finished cuts
Then discharge port is discharged through the discharging revolving valve G below tank body in piece.
The intracorporal vapor (steam) temperature control of pre-crystallized shelf jar is imported in this example at 120-160 DEG C, passes through the pre-crystallized device
Pre-crystallized and dry PTT slice crystallinity is carried out up to 60% or higher.
Claims (10)
1. a kind of pre-crystallized technique of PTT continuous polymerization, characterized in that including following technique:
(1), the sliced machine of PTT material (A) is sliced, and becomes PTT slice；
(2), PTT slice is sent to pelleter water coarse filter (D) by discharge bucket (B) and pelletizing preseparator (C) and carries out preliminary solid-liquid
Separation, screens out most of moisture content；
(3), moist PTT slice is sent into pre-crystallized device (F) and carries out pre-crystallized and dry and processing；
(4), defective products is screened out through vibrating screen (G) by drying PTT slice that is pre-crystallized and being dried；
(5), storage storage；
Wherein, pre-crystallized device includes columnar tank body (1), the longitudinal sealing of tank body, and tank body upper end is equipped with feed inlet (2), under
End is equipped with discharge port (3), is equipped with steam inlet (4) below tank wall, is equipped with steam (vapor) outlet (5) above tank wall, tank body
It is equipped between the height of inherent steam inlet and the height of steam (vapor) outlet and is sliced pre-crystallized fast stem structure；The slice is pre-crystallized fast
Stem structure are as follows: be equipped with newel (6) along axis in tank body；Newel is equipped with several inner cone baffles (7), and inner cone baffle is along positive round
The circular conical surface of taper extends, and inner end is fixed with newel, and gap is equipped between outboard end and tank body inner sidewall；On tank body inner sidewall
Equipped with several outer cone baffles (8), outer cone baffle extends along the circular conical surface of inverted conical shape, and outboard end is fixed with tank body inner sidewall, interior
Side and center intercolumniation are equipped with gap；Inner cone baffle is staggered correspondingly in the height direction with outer cone baffle.
2. a kind of pre-crystallized technique of PTT continuous polymerization according to claim 1, characterized in that newel is in circular
Blank pipe, upper end closed, lower ending opening are connected in outside tank body with steam gas source；Hollow tube is equipped with the flow-disturbing of several perforation tube walls
Hole (9).
3. a kind of pre-crystallized technique of PTT continuous polymerization according to claim 2, characterized in that flow-disturbing hole is divided into several groups,
Each inner cone baffle root is respectively arranged below one group；Each flow-disturbing hole is evenly arranged on the circumference of central tube cross section in every group.
4. a kind of pre-crystallized technique of PTT continuous polymerization according to claim 2 or 3, characterized in that inner cone baffle outboard end
Annular gap is formed between contour tank body inner sidewall, the area with the gap is S1；Outer cone baffle inner end with it is contour
Newel lateral wall between form annular gap, the area with the gap is S2；Sectional area with steam inlet is S3, is had
20*S3≤S1≤50*S3,10*S3≤S2≤40*S3.
5. a kind of pre-crystallized technique of PTT continuous polymerization according to claim 1 or 2 or 3, characterized in that newel upper end
For convex arched top, feed inlet is located at right above arched top.
6. a kind of pre-crystallized technique of PTT continuous polymerization according to claim 1 or 2 or 3, characterized in that tank body lower end is
Back taper, discharge port are located at the end of back taper；The tank wall of back taper is equipped with bottom steam import (10).
7. a kind of pre-crystallized technique of PTT continuous polymerization according to claim 6, characterized in that if bottom steam import is
It dry, is circumferentially uniformly distributed on the tank wall of back taper.
8. a kind of pre-crystallized technique of PTT continuous polymerization according to claim 1 or 2 or 3, characterized in that in steam inlet
Side is connected with steam distributor (11), and steam distributor is annular tube type or straight pipe type, and steam distributor lower part is slotted or aperture.
9. a kind of pre-crystallized technique of PTT continuous polymerization according to claim 1 or 2 or 3, characterized in that inner cone baffle and
Circle element of a cone where outer cone baffle and the angle of horizontal direction are 20 ° ~ 55 °.
10. a kind of pre-crystallized technique of PTT continuous polymerization according to claim 1 or 2 or 3, characterized in that inner cone baffle and
Roughness Ra≤0.8 of the upper surface of outer cone baffle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910611140.5A CN110370490A (en) | 2019-07-08 | 2019-07-08 | A kind of pre-crystallized technique of PTT continuous polymerization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910611140.5A CN110370490A (en) | 2019-07-08 | 2019-07-08 | A kind of pre-crystallized technique of PTT continuous polymerization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110370490A true CN110370490A (en) | 2019-10-25 |
Family
ID=68252373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910611140.5A Pending CN110370490A (en) | 2019-07-08 | 2019-07-08 | A kind of pre-crystallized technique of PTT continuous polymerization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110370490A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111170853A (en) * | 2020-03-11 | 2020-05-19 | 郑州铁路职业技术学院 | Production process and system for preparing cyclohexane plasticizer by liquid phase hydrogenation of o-benzene plasticizer |
| CN115259511A (en) * | 2022-06-08 | 2022-11-01 | 聊城市鲁西化工工程设计有限责任公司 | Polyol ketone residue recycling system and method |
-
2019
- 2019-07-08 CN CN201910611140.5A patent/CN110370490A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111170853A (en) * | 2020-03-11 | 2020-05-19 | 郑州铁路职业技术学院 | Production process and system for preparing cyclohexane plasticizer by liquid phase hydrogenation of o-benzene plasticizer |
| CN115259511A (en) * | 2022-06-08 | 2022-11-01 | 聊城市鲁西化工工程设计有限责任公司 | Polyol ketone residue recycling system and method |
| CN115259511B (en) * | 2022-06-08 | 2023-10-10 | 聊城市鲁西化工工程设计有限责任公司 | Polyol ketone residue recycling system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0091566B1 (en) | Process and apparatus for the post condensation of polycondensates | |
| AU619255B2 (en) | Drying method and apparatus | |
| US2561392A (en) | Process and apparatus for treating solutions to recover and coat solid particles | |
| US4231991A (en) | Apparatus for crystallizing an amorphous particulate material | |
| CN110370490A (en) | A kind of pre-crystallized technique of PTT continuous polymerization | |
| CN203315761U (en) | High-speed centrifuging and spraying drier | |
| CN105086577B (en) | A kind of inorganic pigment process units | |
| CN210477469U (en) | PTT continuous polymerization pre-crystallization device | |
| CN108684835A (en) | A kind of automation stone roller tea production line | |
| JPS6271529A (en) | Granulator | |
| CN208419545U (en) | A kind of steam rotary drying system for ammonium salt | |
| KR102236528B1 (en) | Dehumidifying device provided in manufacturing device for high rigidity packaging band | |
| CN108043055A (en) | A kind of slurry atomization drying equipment for electric porcelain production | |
| CN101744721B (en) | Drip pan, dripping material storing unit, condensation unit as well as device unit and system formed by thereof | |
| CN104165505A (en) | Multifunctional dryer system and working method of multifunctional dryer system | |
| CN1635928A (en) | An agitation system for a fluid bed processing system and a method thereof | |
| KR102204631B1 (en) | Dehumidifying device provided in manufacturing device for high rigidity packaging band | |
| CN209027253U (en) | A kind of wood-based plate timber drying equipment | |
| CN212842772U (en) | Belt dryer for molecular sieve production | |
| CN106179134B (en) | A kind of system and method producing different viscosities chinlon 6 section simultaneously with single set polyplant | |
| CN213912367U (en) | Dispersion disk of micro powder centrifugal spray drying equipment | |
| CN210139525U (en) | Production line for wet-method refining of powdered rubber | |
| CN203672085U (en) | Rotation-vibration draining dryer | |
| CN209484938U (en) | A kind of roller fluidized-bed granulation dryer | |
| CN2281510Y (en) | Complex circular vibration drier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 311200 29 Chenghu Road, Yaqian Town, Xiaoshan District, Hangzhou City, Zhejiang Province Applicant after: Zhejiang Hengyi Petrochemical Research Institute Co.,Ltd. Address before: 311200 Room 501, 3 Blocks, Pearl Plaza, South Bank of Xiaoshan Economic and Technological Development Zone, Xiaoshan District, Hangzhou City, Zhejiang Province Applicant before: ZHEJIANG HENGLAN TECHNOLOGY Co.,Ltd. |