CN105865155A - Special boiling drying bed for chlorinated polyethylene - Google Patents
Special boiling drying bed for chlorinated polyethylene Download PDFInfo
- Publication number
- CN105865155A CN105865155A CN201610372774.6A CN201610372774A CN105865155A CN 105865155 A CN105865155 A CN 105865155A CN 201610372774 A CN201610372774 A CN 201610372774A CN 105865155 A CN105865155 A CN 105865155A
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- Prior art keywords
- sieve plate
- drying
- chlorinated polyethylene
- hole
- bed
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
- F26B3/06—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried
- F26B3/08—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed
Abstract
The invention provides a special boiling drying bed for chlorinated polyethylene and relates to the technical field of manufacturing of drying beds. The special boiling drying bed comprises a drying bed body, a hot air feeding device, a cyclone separator and an air exhausting device, wherein a feeding hole and a discharging hole are formed in a side wall of the drying bed body; the drying bed body is internally provided with a sieve plate; the sieve plate comprises a sieve plate body; the sieve plate body is provided with a plurality of through holes and shielding sheets and the quantity of the shielding sheets is the same as that of the through holes; one parts of the shielding sheets are connected with the sieve plate body and the shielding sheets are obliquely arranged relative to the sieve plate body; and the through holes are located in orthographic projection planes of the shielding sheets on the sieve plate body. By improving the structure of the sieve plate for the drying bed, sieve holes can be prevented from being blocked by materials and the drying efficiency of the chlorinated polyethylene is improved.
Description
[technical field]
The present invention relates to drying bed manufacture technology field, be specifically related to a kind of special boiling-bed drying of chlorinated polyethylene.
[background technology]
Chlorinated polyethylene, chemical name CPE, for saturated macromolecular material, have excellent stability, weather resisteant, resistance to ozone,
Chemical-resistant resistance and ageing-resistant performance, be widely used in the fields such as plastics, rubber, building materials, electromechanics, automobile, military project.Chlorination gathers
The water phase suspension production technology of ethylene is mainly chlorination, deacidification, centrifugation, dry, pulverizing and these several steps hybrid packed.
At present, in chlorinated polyethylene dry run, main employing boiling-bed drying carries out dry materials.
Boiling-bed drying is also known as fluid bed, and through use, the improvement of more than 30 years, oneself was widely used in pharmacy, chemical industry, food at present
The aspect such as product, grain processing.It is mainly made up of dry bed body, cyclone separator, storage heater etc..During work, heat
Wind is in valve plate distributes into drying bed body, and the wet stock entered from feeder is blown afloat formation fluidized state by hot blast.Due to hot blast
Extensively contact with material, enhance the process of heat and mass, therefore just can be dried within a short period of time.Material is from one end of bed body
Enter, through the airpillow-dry of tens seconds to a few minutes, automatically flow out from the bed body other end.But, existing boiling-bed drying
Being dried of chlorinated polyethylene can't be completely suitable for, owing to chlorinated polyethylene belongs to thermoplastic resin, easily condense at 85 DEG C,
The sieve plate eyelet blocking that long-play is easily caused in ebullated bed.For taking out sieve plate cleaning eyelet, the whole series are first done by traditional method
Dry device bed body is sling, and unclamps the press strip of fixed screen deck the most again, takes out the cleaning of whole sieve plate, and this workload is big, mode of operation
The most loaded down with trivial details.Additionally, in chlorinated polyethylene dry run, because material is easily solidifying viscous, the particularly the later stage of drying stage, conglomeration in bulk
Pushing down bed, material can not effectively rise, and drying time is long, and residual moisture is uneven, it is impossible to up to standard.It addition, chlorinated polyethylene
Byproduct hydrogen chloride brought aborning into by material, has acid corrosion, therefore the acid resistance of sieve plate is also had certain requirement.
In view of this, the sieve plate of currently used chlorinated polyethylene boiling-bed drying also needs to carry out further structure and material side
The improvement in face, to improve production efficiency, reduces energy consumption, it is ensured that product quality, and ensures safety in production.
[summary of the invention]
The goal of the invention of the present invention is: for the problem of above-mentioned existence, it is provided that a kind of special boiling-bed drying of chlorinated polyethylene,
The structure of sieve plate used by it is improved, it is possible to avoid material to block sieve aperture, improve the drying efficiency of material.
To achieve these goals, the technical solution used in the present invention is as follows:
A kind of special boiling-bed drying of chlorinated polyethylene, including drying bed body, enters hot air apparatus, cyclone separator and air draft dress
Put；Described enter hot air apparatus include aerator, storage heater, described storage heater is by intake stack and described drying bed
The bottom connection of body；Described air exhausting device includes that air-introduced machine, wind pipe and air inducing pipeline, the two ends of described wind pipe divide
Not Lian Tong the top of drying bed body and cyclone separator, the two ends of described air inducing pipeline are respectively communicated with cyclone separator and air-introduced machine；
Offering charging aperture and discharging opening on the sidewall of described drying bed body, drying bed is the most internal is provided with sieve plate, including sieve plate body,
Described sieve plate body is provided with multiple through hole and the shielding plate with through hole equal number, described shielding plate some with sieve plate this
Body connects and described shielding plate is obliquely installed relative to sieve plate body, and described through hole is positioned at shielding plate orthographic projection on sieve plate body
Within face.
Further, the edge of described through hole just overlaps with described shielding plate frontal plane of projection on sieve plate body.
Further, described shielding plate is obliquely installed relative to sieve plate body, and the direction that shielding plate tilts is towards discharging opening.
Further, described through hole is D font, and the edge of the arch section of D font through hole links together with shielding plate.
Further, described shielding plate is made up of main leaf and the lateral plate being connected to main leaf both sides, and one end of main leaf is with sieve plate body even
Connect and main leaf is obliquely installed relative to sieve plate body；Described through hole is square, and square through hole has edge and the shielding plate on two limits
Two lateral plates connect respectively.
Further, described shielding plate is 1-3mm from the maximum normal distance of sieve plate.
Further, described shielding plate is 1.5mm from the maximum normal distance of sieve plate.
Further, the full-size of described through hole is 3-5mm.
Further, described sieve plate uses acid proof material to be made.
Further, described sieve plate use acid proof rustless steel process, after machine-shaping floor lever of sieve tray scribble one layer resistance to
Acid resin, the thickness of acid-proof resin layer is 0.1-1mm, and described acid-proof resin is made up of the raw material of following weight portion: vinyl
Resin 60-80 part, furfuryl alcohol resin 15-20 part, polyisobutylene 6-10 part, antistatic additive 2-3 part, firming agent 3-5 part, tree
Fat diluent 15-25 part, boron modified phenolic resin adhesive 6-8 part；Described boron modified phenolic resin adhesive is by following
The raw material of weight portion is made: phenol 90-110 part, formaldehyde 20-30 part, Firebrake ZB 5-8 part, barium hydroxide 3-5
Part, aniline 2-3 part, A151 silane coupler 2-3 part, tackifying resin 4-6 part.
Further, described antistatic additive is polyethylene glycol methacrylate-styrene polymer copolymer, and described firming agent is diaminourea hexichol first
Alkane, described diluent resin is expoxy propane o-cresyl ether.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows:
1, the air outlet direction of sieve plate used by traditional drying bed is straight up, and the present invention is blocked by arranging the through hole of sieve plate
Sheet, this shielding plate connects with sieve plate body and relative sieve plate body is obliquely installed, it is possible to changes the direction of air outlet, and can stop
Material drops and blocks through hole.
2, the present invention also proposes improvement to the material of sieve plate, after using acid resistance steel plate machine-shaping and in surface injection or coating one
Layer acid-proof resin, this acid-proof resin is prepared by vinylite modification, has corrosion resistance, anlistatig effect, it is ensured that sieve
The service life of plate.
[accompanying drawing explanation]
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of a kind of embodiment of the sieve plate in the present invention.
Fig. 3 is the structural representation of the another embodiment of the sieve plate in the present invention.
Wherein, 1-drying bed body, 2-air-introduced machine, 3-cyclone separator, 4-storage heater, 5-aerator, 11-air inlet,
12-charging aperture, 13-discharging opening, 14-sieve plate, 141-sieve plate body, 142-through hole, 143-shielding plate, 143a-main leaf, 143b-
Lateral plate.
[detailed description of the invention]
Below in conjunction with drawings and Examples, the invention will be further described.
As it is shown in figure 1, be the special boiling-bed drying of chlorinated polyethylene of the present invention, including drying bed body 1, enter hot air apparatus,
Cyclone separator 3 and air exhausting device；Described enter hot air apparatus include aerator 5, storage heater 4, described storage heater 4
Connected with the air inlet 11 set by the bottom of described drying bed body 1 by intake stack；Described air exhausting device include air-introduced machine 2,
Wind pipe and air inducing pipeline, the two ends of described wind pipe are respectively communicated with top and the cyclone separator 3 of drying bed body 1,
The two ends of described air inducing pipeline are respectively communicated with cyclone separator 3 and air-introduced machine 2；Offer on the sidewall of described drying bed body 1
Charging aperture 12 and discharging opening 13, be provided with sieve plate 14 in drying bed body 1.The shape of described sieve plate 14 can be circular, it is possible to
To be the circle scrabbled up by several blocks, such as, it is spliced by 4 quadrant shape blocks.If drying bed body 1 is
Cube, the shape of sieve plate 14 can also be square.Those skilled in the art can carry out adaptive change accordingly.
As shown in Figures 2 and 3, for two kinds of different embodiments of structural representation of sieve plate of the present invention.
As in figure 2 it is shown, this sieve plate includes sieve plate body 141, this sieve plate body 141 uses acid proof material to make, such as glass
Glass steel, acid resistance rustless steel or titanium plate, it is contemplated that economic and practical, can use steel plate punched molding, then with acid proof
Resin makes layer protective layer on surface.Offering many through holes 142 on sieve plate body, the through hole 142 shown in Fig. 2 is D word
Shape, each through hole 142 be arranged over shielding plate 143, shielding plate 143 some be connected and described with sieve plate body 141
Shielding plate 143 is obliquely installed relative to sieve plate body 141.Most preferred mode is that the edge of described through hole 142 blocks with described
The sheet 143 frontal plane of projection on sieve plate body 141 just overlaps, and the direction that shielding plate 143 tilts is towards drying bed body 1
On discharging opening 12.Certainly, as long as within described through hole is positioned at shielding plate frontal plane of projection on sieve plate body, can meet
The requirement of the present invention.The effect that shielding plate plays is the direction changing air outlet, and blocks through hole and make the chlorinated polyethylene material will not
It is blocked in through hole, thus reduces the number of times of cleaning sieve plate, improve work efficiency.
As it is shown on figure 3, this sieve plate includes sieve plate body 141, this sieve plate body 141 uses acid proof material to make, such as glass
Glass steel, acid resistance rustless steel or titanium plate, it is contemplated that economic and practical, can use steel plate punched molding, then with acid proof
Resin makes layer protective layer on surface.Offering many through holes 142 on sieve plate body, the through hole 142 shown in Fig. 2 is square,
Each through hole 142 be arranged over shielding plate 143, shielding plate 143 some be connected with sieve plate body 141 and described in block
Sheet 143 is obliquely installed relative to sieve plate body 141, and most preferred mode is that described shielding plate 143 by main leaf 143a and is connected to
The lateral plate 143b composition of main leaf both sides, one end of main leaf 143a is connected with sieve plate body 141 and main leaf 143a is relative to sieve plate basis
Body 141 is obliquely installed, and the direction that main leaf 143a tilts is towards the discharging opening 12 on drying bed body 1, and square through hole has two
The edge on bar limit is connected respectively with two lateral plate 143b of shielding plate 143.Certainly, as long as described through hole 142 is positioned at shielding plate
Within 143 frontal plane of projection on sieve plate body 1, the requirement of the present invention can be met.The effect that shielding plate 143 plays is
Change the direction of air outlet, and block through hole 142 and make chlorinated polyethylene material will not be blocked at through hole 142, thus reduce clear
The number of times of reason sieve plate, improves work efficiency.
But, regardless of through hole 142 and the shape of shielding plate 143, the preferred shielding plate of the present invention 143 is from sieve plate body 141
Maximum normal distance be 1-3mm, preferred distance is 1.5mm.The most preferably the full-size of through hole 142 is 3-5mm.
Can preferably meet chlorinated polyethylene actual production demand.Through hole is excessive and air outlet is the biggest, it is impossible to dispersion chlorination gathers well
Ethylene, through hole is excessive and air outlet is too big, can reduce wind-force, affect production efficiency.
When the special boiling-bed drying of chlorinated polyethylene of the present invention works, feeding intake from charging aperture, the wind of aerator blowout adds through hot blast
After the heating of hot device, enter into boiling-bed drying bottom, by the through hole of sieve plate, then be blown into dry after shielding plate changes wind direction
Bed middle and upper part, under the common effect of aerator and air-introduced machine, wet chlorinated polyethylene material is blown afloat in boiling-like, to one
The wind-force increasing aerator after the fixed time reduces the wind-force of air-introduced machine, and in making drying bed, pressure increases, and opens the outlet of drying bed
Valve, dried material is i.e. from discharge hole for discharge.In process of production, if there being material to drop on sieve plate, at paddle
Under the effect of sheet, can prevent material from stopping on sieve plate, thus prevent the eyelet of sieve plate to be plugged or materials from bonding is on sieve plate,
Owing to sieve plate has shielding plate, it is possible to prevent material to drop out from through hole..
From the above it will also be appreciated that owing to byproduct hydrogen chloride brought aborning into by chlorinated polyethylene material, there is sour
Erosion property, therefore also has certain requirement to the acid resistance of sieve plate.Therefore, described sieve plate uses acid proof rustless steel to process,
Also needing at floor lever of sieve tray painting last layer acid-proof resin after machine-shaping, the thickness of acid-proof resin layer is 0.1-1mm, acidproof tree
Fat can by following weight portion mixed raw material become: vinylite 60 parts, furfuryl alcohol resin 15 parts, polyisobutylene 6 parts, 2
Part, MDA 3 parts, expoxy propane o-cresyl ether 15 parts, boron modified phenolic resin adhesive 6 parts；Described
Boron modified phenolic resin adhesive is to be made by the raw material of following weight portion: phenol 90 parts, 20 parts of formaldehyde, boric acid
5 parts of zinc, barium hydroxide 3 parts, aniline 2 parts, A151 silane coupler 2 parts, tackifying resin 4 parts.
The manufacture method of described boron modified phenolic resin adhesive is: get out phenol 90 parts, 20 parts of formaldehyde, boron by weight
Acid 5 parts of zinc, barium hydroxide 3 parts, aniline 2 parts, A151 silane coupler 2 parts, tackifying resin 4 parts；By phenol 90 parts,
5 parts of formaldehyde and Firebrake ZB 5 parts join in reactor, add barium hydroxide 3 parts and aniline 2 parts work at reactor while stirring
Composite catalyst, stirs 15 minutes；Then reactor is warming up to 75 DEG C of reaction 60min；It is warming up to 85 DEG C again, adds surplus
The formaldehyde that remaining part is divided, reacts 20 minutes；Then stop heating, be neutral with the pH value in oxalic acid regulation reactor, question response
When being down to less than 40 DEG C at a temperature of in still, add A151 silane coupler 2 parts, tackifying resin 4 parts stirring 20min, then
Filter discharging, i.e. obtain boron modified phenolic resin adhesive.
Described acid-proof resin can also by following weight portion mixed raw material become: vinylite 80 parts, furfuryl alcohol resin 20 parts,
Polyisobutylene 10 parts, 3 parts, MDA 5 parts, expoxy propane o-cresyl ether 25 parts, boron modified phenolic resin
Adhesive 8 parts；Described boron modified phenolic resin adhesive is to be made by the raw material of following weight portion: phenol 110
Part, 30 parts of formaldehyde, Firebrake ZB 8 parts, barium hydroxide 5 parts, aniline 3 parts, A151 silane coupler 3 parts, tackifying resin 6
Part.
The manufacture method of described boron modified phenolic resin adhesive is: get out phenol 110 parts, 30 parts of formaldehyde, boron by weight
Acid 8 parts of zinc, barium hydroxide 5 parts, aniline 3 parts, A151 silane coupler 3 parts, tackifying resin 6 parts；By phenol 110 parts,
8 parts of formaldehyde and Firebrake ZB 8 parts join in reactor, add barium hydroxide 5 parts and aniline 3 parts work at reactor while stirring
Composite catalyst, stirs 20 minutes；Then reactor is warming up to 80 DEG C of reaction 50min；It is warming up to 85 DEG C again, adds surplus
The formaldehyde that remaining part is divided, reacts 30 minutes；Then stop heating, be neutral with the pH value in oxalic acid regulation reactor, question response
When being down to less than 40 DEG C at a temperature of in still, add A151 silane coupler 3 parts, tackifying resin 6 parts stirring 30min, then
Filter discharging, i.e. obtain boron modified phenolic resin adhesive.
Making owing to using modified phenolic resin of above-mentioned resin, its caking property strengthens, and can be firmly attached with sieve plate body,
It is not easy to come off.Resin after solidification is made acid proof test, soaks in the hydrochloric acid that mass fraction is 20% and the most substantially become for 20 days
Change, illustrate that its acid resistance is excellent.Use it for making the anti-corrosion layer of sieve plate, the service life of sieve plate can be extended.Will solidification
After resin make thermostability test, in 200 DEG C of drying bakers place 48 hours, there is no significant change, illustrate that it is heat-resist.
Its acidproof production requirement that can meet chlorinated polyethylene with heat resistance.
Described above is the detailed description for the preferable possible embodiments of the present invention, but embodiment is not limited to the special of the present invention
Profit application range, the equal change completed under the technical spirit suggested by all present invention or modification change, the present invention all should be belonged to
Contained the scope of the claims.
Claims (9)
1. the special boiling-bed drying of chlorinated polyethylene, including drying bed body, enters hot air apparatus, cyclone separator and air draft
Device；Described enter hot air apparatus include aerator, storage heater, described storage heater by intake stack with described be dried
The bottom connection of bed body；Described air exhausting device includes air-introduced machine, wind pipe and air inducing pipeline, the two ends of described wind pipe
Being respectively communicated with top and the cyclone separator of drying bed body, the two ends of described air inducing pipeline are respectively communicated with cyclone separator and air inducing
Machine；Offering charging aperture and discharging opening on the sidewall of described drying bed body, drying bed is the most internal is provided with sieve plate, including sieve plate originally
Body, it is characterised in that: described sieve plate body is provided with multiple through hole and the shielding plate with through hole equal number, described shielding plate
Some is connected with sieve plate body and described shielding plate is obliquely installed relative to sieve plate body, and described through hole is positioned at shielding plate at sieve
Within frontal plane of projection on plate body.
A kind of special boiling-bed drying of chlorinated polyethylene the most according to claim 1, it is characterised in that: described through hole is D
Font, the edge of the arch section of D font through hole links together with shielding plate.
A kind of special boiling-bed drying of chlorinated polyethylene the most according to claim 1, it is characterised in that: described shielding plate by
Main leaf and the lateral plate composition being connected to main leaf both sides, one end of main leaf is connected with sieve plate body and main leaf tilts relative to sieve plate body
Arrange；Described through hole is square, and square through hole has the edge on two limits to be connected respectively with two lateral plates of shielding plate.
4. according to the special boiling-bed drying of a kind of chlorinated polyethylene described in Claims 2 or 3, it is characterised in that block described in:
Sheet is 1-3mm from the maximum normal distance of sieve plate.
5. according to the special boiling-bed drying of a kind of chlorinated polyethylene described in Claims 2 or 3, it is characterised in that block described in:
Sheet is 1.5mm from the maximum normal distance of sieve plate.
6. according to the special boiling-bed drying of a kind of chlorinated polyethylene described in Claims 2 or 3, it is characterised in that: described through hole
Full-size be 3-5mm.
A kind of special boiling-bed drying of chlorinated polyethylene the most according to claim 6, it is characterised in that: described sieve plate uses
Acid proof material is made.
A kind of special boiling-bed drying of chlorinated polyethylene the most according to claim 1 and 2, it is characterised in that: described sieve plate
Use acid proof rustless steel to process, after machine-shaping, scribble one layer of acid-proof resin, the thickness of acid-proof resin layer at floor lever of sieve tray
Degree is 0.1-1mm, and described acid-proof resin is made up of the raw material of following weight portion: vinylite 60-80 part, furfuryl alcohol resin
15-20 part, polyisobutylene 6-10 part, antistatic additive 2-3 part, firming agent 3-5 part, diluent resin 15-25 part, boron change
Property synvaren 6-8 part；Described boron modified phenolic resin adhesive is to be made by the raw material of following weight portion
: phenol 90-110 part, formaldehyde 20-30 part, Firebrake ZB 5-8 part, barium hydroxide 3-5 part, aniline 2-3 part, A151
Silane coupler 2-3 part, tackifying resin 4-6 part.
A kind of special boiling-bed drying of chlorinated polyethylene the most according to claim 9, it is characterised in that: described antistatic additive
For polyethylene glycol methacrylate-styrene polymer copolymer, described firming agent is MDA, and described diluent resin is epoxy third
Alkane o-cresyl ether.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610372774.6A CN105865155A (en) | 2016-05-30 | 2016-05-30 | Special boiling drying bed for chlorinated polyethylene |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610372774.6A CN105865155A (en) | 2016-05-30 | 2016-05-30 | Special boiling drying bed for chlorinated polyethylene |
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| CN105865155A true CN105865155A (en) | 2016-08-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106181426A (en) * | 2016-08-19 | 2016-12-07 | 宁波金凯机床股份有限公司 | A kind of safe gantry machining center ray machine |
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Application publication date: 20160817 |