CN109400951A - A kind of production method and device of DMC - Google Patents
A kind of production method and device of DMC Download PDFInfo
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- CN109400951A CN109400951A CN201811641082.2A CN201811641082A CN109400951A CN 109400951 A CN109400951 A CN 109400951A CN 201811641082 A CN201811641082 A CN 201811641082A CN 109400951 A CN109400951 A CN 109400951A
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- dmc
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- product
- stem machine
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 40
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 78
- 238000004064 recycling Methods 0.000 claims abstract description 41
- 239000004568 cement Substances 0.000 claims abstract description 40
- 239000004033 plastic Substances 0.000 claims abstract description 40
- 239000000463 material Substances 0.000 claims abstract description 31
- SRSXLGNVWSONIS-UHFFFAOYSA-N benzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229940092714 benzenesulfonic acid Drugs 0.000 claims abstract description 28
- 239000000047 product Substances 0.000 claims description 57
- 238000005336 cracking Methods 0.000 claims description 39
- 238000000034 method Methods 0.000 claims description 27
- 230000008569 process Effects 0.000 claims description 22
- 239000000843 powder Substances 0.000 claims description 20
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 18
- 238000003860 storage Methods 0.000 claims description 18
- 239000012264 purified product Substances 0.000 claims description 12
- 239000002893 slag Substances 0.000 claims description 9
- 238000001179 sorption measurement Methods 0.000 claims description 9
- 230000001376 precipitating effect Effects 0.000 claims description 8
- 238000000746 purification Methods 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 7
- 238000011897 real-time detection Methods 0.000 claims description 7
- 238000011084 recovery Methods 0.000 claims description 7
- 239000012535 impurity Substances 0.000 claims description 6
- 230000008707 rearrangement Effects 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 3
- 239000005864 Sulphur Substances 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 238000009833 condensation Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims description 3
- 238000006462 rearrangement reaction Methods 0.000 claims description 3
- 239000002341 toxic gas Substances 0.000 claims description 3
- 239000002994 raw material Substances 0.000 abstract description 42
- 239000002699 waste material Substances 0.000 abstract description 8
- 238000000227 grinding Methods 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 description 8
- -1 siloxanes Chemical class 0.000 description 8
- 239000007787 solid Substances 0.000 description 7
- 238000002156 mixing Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- AHIBWURJLGCHAY-UHFFFAOYSA-N [S].C1=CC=CC=C1 Chemical compound [S].C1=CC=CC=C1 AHIBWURJLGCHAY-UHFFFAOYSA-N 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- HTDJPCNNEPUOOQ-UHFFFAOYSA-N hexamethylcyclotrisiloxane Chemical compound C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O1 HTDJPCNNEPUOOQ-UHFFFAOYSA-N 0.000 description 3
- 239000011344 liquid material Substances 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- DDJSWKLBKSLAAZ-UHFFFAOYSA-N cyclotetrasiloxane Chemical compound O1[SiH2]O[SiH2]O[SiH2]O[SiH2]1 DDJSWKLBKSLAAZ-UHFFFAOYSA-N 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 2
- LIKFHECYJZWXFJ-UHFFFAOYSA-N dimethyldichlorosilane Chemical compound C[Si](C)(Cl)Cl LIKFHECYJZWXFJ-UHFFFAOYSA-N 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000413 hydrolysate Substances 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- HMMGMWAXVFQUOA-UHFFFAOYSA-N octamethylcyclotetrasiloxane Chemical compound C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1 HMMGMWAXVFQUOA-UHFFFAOYSA-N 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- BKMUDUXPSVRLFZ-UHFFFAOYSA-N 2-methyl-1,3,5,7,9,2,4,6,8,10-pentaoxapentasilecane Chemical compound C[SiH]1O[SiH2]O[SiH2]O[SiH2]O[SiH2]O1 BKMUDUXPSVRLFZ-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- OBNDGIHQAIXEAO-UHFFFAOYSA-N [O].[Si] Chemical compound [O].[Si] OBNDGIHQAIXEAO-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 238000012432 intermediate storage Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000007151 ring opening polymerisation reaction Methods 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 208000016261 weight loss Diseases 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J11/00—Recovery or working-up of waste materials
- C08J11/04—Recovery or working-up of waste materials of polymers
- C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
- C08J11/18—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material
- C08J11/28—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with organic compounds containing nitrogen, sulfur or phosphorus
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
- C07F7/02—Silicon compounds
- C07F7/21—Cyclic compounds having at least one ring containing silicon, but no carbon in the ring
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Processing Of Solid Wastes (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The invention discloses the production method of DMC a kind of and devices, the production method of DMC includes: step 1, and broken recycling plastic cement is input in dual-screw-stem machine according to scheduled weight ratio from head tank with benzene sulfonic acid, sulfuric acid and carries out premixing and forms premix and export；Step 2, the premix dual-screw-stem machine exported generates DMC product after being cracked, precipitated, being reset, adsorb.Broken recycling plastic cement and benzene sulfonic acid, sulfuric acid material are input to dual-screw-stem machine by using according to predetermined weight ratio, it is mixed and is dispersed by dual-screw-stem machine, utilize the feature that the twin-screw gap of dual-screw-stem machine is small, velocity of rotation is fast, further material is mixed, is ground, the material being ground is uniformly mixed, granularity is small and can be realized serialization grinding, there is no waste and the man-handlings of materials of material for centre, directly raw material is inputted from corresponding device, finished product can be exported from output end, human cost has been saved, the production cycle is reduced.
Description
Technical field
The present invention relates to DMC preparation technical fields, more particularly to the production method and device of a kind of DMC.
Background technique
Primary Speciation dimethyl ring body siloxanes (DMC) be mainly used for carry out ring-opening polymerisation at different polymerization degree silicone oil,
Silicon rubber and silicone resin etc..These polymer are further processed into product and are widely used in building, electronics, weaving, automobile, individual
The every field such as nursing, food, machining also have a small amount of directly application.
Primary Speciation dimethyl ring body siloxanes be using dimethyldichlorosilane as primary raw material, by hydrolysis, with
Silicon oxygen (Si-O) key is main chain, and the organic and inorganic compound of organic group is directly connected on silicon atom.Primary Speciation diformazan basic ring
Ring-type is presented in body siloxane molecule structure, mainly includes hexamethyl cyclotrisiloxane (D3), octamethylcy-clotetrasiloxane (D4), ten
Methyl cyclopentasiloxane (D5), ten diformazan basic rings, six siloxanes (D6) and hexamethyl cyclotrisiloxane (D3) and or prestox
Cyclotetrasiloxane (D4) and or decamethylcyclopentaandoxane (D5) and or ten diformazan basic rings, six siloxanes (D6) content reach 50%
Above colorless and transparent or milky white liquid, flammable, free from extraneous odour is not soluble in water, is dissolved in the organic solvents such as benzene.
Octamethylcy-clotetrasiloxane (D4) is one kind using dimethyldichlorosilane as primary raw material, is passing through hydrolysis
Pass through separation, rectifying on the basis of hydrolysate made from process, or divides again after cracking or on the basis of DMC in hydrolysate
It is obtained from after, rectifying to have individually defined compound.
Currently, all recycling plastic cement are first first crushed rear and benzene sulphur using traditional reaction kettle technique production by existing DMC
Acid, sulfuric acid are added reaction and carry out mixing dispersion, and since manual operation degree is high, the waste of transfer process is more, it is desirable that when being stirred
Between it is very long, energy consumption is high, and production efficiency is low.
Summary of the invention
The object of the present invention is to provide the production method of DMC a kind of and devices, improve production efficiency, reduce waste,
Improve product quality.
In order to solve the above technical problems, the embodiment of the invention provides the production methods of DMC a kind of, comprising:
Step 1, broken recycling plastic cement is input to according to scheduled weight ratio from head tank with benzene sulfonic acid, sulfuric acid
Premixing is carried out in dual-screw-stem machine to form premix and export；
Step 2, the premix dual-screw-stem machine exported cracked, precipitated, being reset, adsorb after generate
DMC product.
Wherein, the step 1 includes:
The recycling plastic cement is inputted in the front end of the dual-screw-stem machine, inputs the benzene sulphur in the middle-end of the dual-screw-stem machine
Sour, the described sulfuric acid, will be described in the recycling plastic cement, the benzene sulfonic acid, sulfuric acid formation in the end of the dual-screw-stem machine
Premix output.
Wherein, the step 1 further include:
The broken recycling plastic cement is successively inputted to the benzene sulfonic acid, the sulfuric acid according to scheduled weight ratio
Premixing is carried out in the dual-screw-stem machine to form the premix and export.
Wherein, the step 1, further includes:
By the broken recycling plastic cement and the benzene sulfonic acid, the sulfuric acid according to scheduled weight ratio with weightlessness
State is input in the dual-screw-stem machine be pre-mixed and forms premix and export.
Wherein, further includes:
Described in the broken recycling plastic cement of real-time detection and the unit of display time interior input dual-screw-stem machine, benzene
The weight of sulfonic acid, the sulfuric acid.
In addition to this, the embodiment of the invention also provides the process units of DMC a kind of, comprising:
Premix system, the premix system include powder metering container, liquid measuring vessel and dual-screw-stem machine, described
The benzene sulphur that the broken recycling plastic cement of powder metering container output and the benzene sulfonic acid storage tank of the liquid measuring vessel export
The sulfuric acid that acid, sulfuric acid storage tank export is input to the dual-screw-stem machine according to scheduled mass ratio, and passes through the twin-screw
Premix is exported after machine mixing；
Cracking system, the broken recycling plastic cement by being decomposed by the cracking system under cracking still high temperature
Primary product containing powder impurity simultaneously carries out purification acquisition purified product by the first condenser；
Settling system, the settling system is connect with the first condenser of the cracking system, and the purified product is defeated
Enter to the precipitating basin of the settling system and is stored；
System for rearranging, the rearrangement kettle of the system for rearranging connect with the output end of the precipitating basin, the precipitating are store
The purified product of tank storage is input to the rearrangement kettle and carries out rearrangement reaction, and generates just after the condensation of the second condenser
Grade DMC product；
Adsorption system, the adsorption system are connect with the system for rearranging, for generate system for rearranging work
The primary DMC product is by exporting middle rank DMC product after inhaling the progress toxic gas absorption of carbon kettle；
Filtering and discharge system, the filtering are connect with discharge system with the adsorption system, for passing through filter pair
The middle rank DMC product exports ultimate DMC product after being filtered, and is stored by finished product basin.
Wherein, further include connect with the output end of the cracking still bottom of the cracking system go powder recovery system, use
The granulated slag in the Primary product generated in the recycling cracking still course of work.
Wherein, first condenser is including at least condensed in two stages device, the primary for cracking the cracking still
Product carries out repeatedly purification and obtains the purified product.
Wherein, the filter is plate filter, and the plate filter is produced by the middle rank DMC described in bottom input
Product from top export the ultimate DMC product after being filtered.
It wherein, further include the output end and the liquid that the powder metering container of the premix system is set
The metering pump of the storage tank of measuring container, sulfuric acid storage tank, the material output quantity current for real-time detection.
The production method and device of DMC provided by the embodiment of the present invention has following excellent compared with prior art
Point:
The production method and device of the DMC, by using according to predetermined weight ratio by broken recycling plastic cement
It is input to dual-screw-stem machine with benzene sulfonic acid, sulfuric acid material, is mixed and is dispersed by dual-screw-stem machine, double spiral shells of dual-screw-stem machine are utilized
The feature that bar gap is small, velocity of rotation is fast further mixes material, is ground, the material being ground be uniformly mixed, particle
It spends small and can be realized serialization grinding, there is no waste and the man-handlings of materials of material for centre, directly from corresponding device
Middle input raw material, so that it may export finished product from output end, save human cost, reduced the production cycle.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is a kind of step process signal of specific embodiment of the production method of DMC provided in an embodiment of the present invention
Figure；
Fig. 2 is a kind of structural schematic diagram of specific embodiment of the process units of DMC provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
FIG. 1 to FIG. 2 is please referred to, Fig. 1 is a kind of specific embodiment of the production method of DMC provided in an embodiment of the present invention
Step flow diagram；Fig. 2 is a kind of structure of specific embodiment of the process units of DMC provided in an embodiment of the present invention
Schematic diagram.
In a specific embodiment, the production method of the DMC, comprising:
Step 1, broken recycling plastic cement is input to according to scheduled weight ratio from head tank with benzene sulfonic acid, sulfuric acid
Premixing is carried out in dual-screw-stem machine to form premix and export；
Step 2, the premix dual-screw-stem machine exported cracked, precipitated, being reset, adsorb after generate
DMC product.
Broken recycling plastic cement and benzene sulfonic acid, sulfuric acid material are input to double spiral shells by using according to predetermined weight ratio
Bar machine, is mixed and is dispersed by dual-screw-stem machine, using the feature that the twin-screw gap of dual-screw-stem machine is small, velocity of rotation is fast,
Further material is mixed, is ground, the material being ground, which is uniformly mixed, granularity is small and can be realized serialization grinds
Mill, centre directly input raw material from corresponding device, so that it may from output end there is no waste and the man-handling of materials of material
Finished product is exported, human cost has been saved, has improved product quality, reduced the production cycle.
In the production method of DMC in the present invention, by the way that dual-screw-stem machine will be originally input in head tank, pass through twin-screw
Machine is stirred, mixes, grinds, and is sufficiently mixed, so that wherein the volume of the broken recycling plastic cement in raw material becomes smaller, with benzene
Sulfonic acid and sulfuric acid are adequately mixed, and are come into full contact with, and in subsequent reaction process, are improved reaction efficiency, are improved raw material
Utilization efficiency improves product quality.
In the production method of DMC in the present invention, continuous production can be used, that is, uses open production, raw material connects
Continuous constantly at the uniform velocity to input, product continuously exports, and is also possible to using interrupted production method, such as within certain production cycle,
The raw material for inputting predetermined quality ratio forms finished product in the Raw material processing for completing the period and then inputs the raw material of equivalent, weight
The multiple above process, can also be in feed stage according to scheduled weight ratio, is persistently inputted, and centre setting mixture is store
Tank is deposited, since subsequent reaction may need to be sealed operation, waste material may be needed to be discharged after time processing, therefore,
Can according to certain period by the mixture in mixture hold-up tank according to certain period, equivalent inputs reaction chamber or processing
In room.I.e. in the present invention, the production method for being not limited to DMC uses continuation mode or intermittent manner, can be according to not
The change of same reaction unit is changed, i.e., part is interrupted from being continuously changed to, it is only necessary to intermediate storage tank to be keyed in, according to week
Phase carries out raw material input, will not occur small failure due to upstream portion in this way and cause the insufficient raw material processing method in downstream
Or the appearance of the case where changing and changing processing technology process-cycle, improve the reliability of technique.
For the material of dual-screw-stem machine, size and modes of emplacement in the present invention, raw material input mode without limitation, material
Matter is required by enough corrosion resistances, higher mechanical performance, and can be in modes of emplacement it is horizontal positioned, can also be with
It is to place vertically, the raw material of vertical the advantages of placing can be automatic downward due to the active force of the additional dual-screw-stem machine of effect of gravity
Movement, but also has disadvantage, due to liquid therein such as benzene sulfonic acid, sulfuric acid due to be fluid reason, can be automatically along double spiral shells
The blades flows of bar machine so that the mixed effect with plastic cement is weaker, simultaneously because vertical place so that in top feed or
Person side feed, when the output end of raw material can be made excessively high, be unfavorable for inputting raw material into material container, and using horizontal positioned,
The motor of driving and the height of the input terminal of raw material is enabled to be lower, the height of raw material input raw material storage tank is lower, difficult
Degree decline, on the other hand since the pushing direction of dual-screw-stem machine is vertical with gravity direction, enables solid plastic cement to push liquid
Benzene sulfonic acid, the sulfuric acid of state are mobile, and good mix can be obtained between solid material and liquid material.
In the present invention for material dual-screw-stem machine input position without limitation, can be inputted in identical position,
It can be inputted in different positions.
Due to that input port can be made excessively intensive, it is defeated to be unfavorable for corresponding raw material when identical position inputs
The connection of the input terminal of outlet and dual-screw-stem machine, therefore can generally be arranged in a staggered manner, and since dual-screw-stem machine has the function of grinding
And mixed function, therefore, in one embodiment of the invention, the step 1 includes:
The recycling plastic cement is inputted in the front end of the dual-screw-stem machine, inputs the benzene sulphur in the middle-end of the dual-screw-stem machine
Sour, the described sulfuric acid, will be described in the recycling plastic cement, the benzene sulfonic acid, sulfuric acid formation in the end of the dual-screw-stem machine
Premix output.
By the way that solid recycling plastic cement is inputted in front end, the liquid for carrying out certain grinding and then being inputted with middle-end
Benzene sulfonic acid, sulfuric acid mixed, during being exported in end, still ground and mixed, so that solid time
Sufficiently small size can be ground to by receiving plastic cement, more uniform with the mixing of liquid material, both facilitate subsequent raw material special honours,
Reduction blocks in conveyance conduit, improves the reliability of work, and can be filled between solid-state and liquid material
The mixing divided improves contact area, improves reaction efficiency, reduces reaction time, improves the production efficiency and product matter of product
Amount.
In order to guarantee successively to produce in the present invention, production efficiency is improved, in one embodiment, the step 1 is also
Include:
The broken recycling plastic cement is successively inputted to the benzene sulfonic acid, the sulfuric acid according to scheduled weight ratio
Premixing is carried out in the dual-screw-stem machine to form the premix and export.
By continuously inputting raw materials recovery plastic cement and the benzene sulfonic acid, the sulfuric acid, it can both make the production for improving product
Amount, while it is also possible that dual-screw-stem machine is able to maintain the power swing of an a small range, it avoids due to power swing mistake
Damaged for caused by dual-screw-stem machine greatly, improve the service life of dual-screw-stem machine, improve its operational reliability, reduce operation at
This.
Be in the present invention with according in the raw material of constant weight ratio input dual-screw-stem machine, can be using mechanical pump or
The mode of manipulator operation, but this mode can additionally consume electric energy, increase pipeline and mechanical device, increase cost, together
When will increase whole device the space occupied, in order to solve this technical problem, in one embodiment of the invention, the step
Rapid 1, further includes:
By the broken recycling plastic cement and the benzene sulfonic acid, the sulfuric acid according to scheduled weight ratio with weightlessness
State is input in the dual-screw-stem machine be pre-mixed and forms premix and export.
By using weightless mode, progress continuously feeds dual-screw-stem machine, can either reduce the space occupied,
The complexity and use cost of whole device can be reduced, in addition, being fed by the way of weightless by gravity, energy
The defective material of raw material in pipeline is enough reduced or avoided, improves the accuracy of the raw material inlet of product, improves the quality of product.
The present invention can be used for be not specifically limited by the way of feedstock transportation to dual-screw-stem machine using weight-loss method
The output end of raw material directly connect with the feed end of dual-screw-stem machine and carries out material conveying by the mode directly transported, can also be with
Using first by the feedstock transportation needed in the unit time into pans, then pans are similar again by the mode of feedstock transportation
, can also in other manners in the mode of infusion, the present invention is not especially limited this.
Due to both there is solid raw material in the present invention, there is also solid raw materials, have for the input quantity of raw material tight
The requirement of lattice, therefore, in order to improve the monitoring for whole process, in one embodiment of the invention, the production of the DMC
Mode further include:
Described in the broken recycling plastic cement of real-time detection and the unit of display time interior input dual-screw-stem machine, benzene
The weight of sulfonic acid, the sulfuric acid.
Pass through sulphur described in the broken recycling plastic cement of input interior between the real-time detection unit dual-screw-stem machine, benzene
The weight of sour, the described sulfuric acid refers to generally in such a way that display screen is shown for staff, enables staff
The enough input information for obtaining raw material in real time, further, it is also possible to carry out alarm setting, i.e., it is more than certain model that the input quantity of raw material, which is floated,
It encloses and alarms, to ensure that the efficient operation of entire production process, improve the quality of product, reduce the wave of raw material
Take.
In addition to this, the embodiment of the invention also provides the process units of DMC a kind of, comprising:
Premix system 10, the premix system 10 include powder metering container 11, liquid measuring vessel 12 and double spiral shells
The benzene sulfonic acid of bar machine 13, broken recycling plastic cement and the liquid measuring vessel 12 that the powder metering container 11 exports is deposited
The benzene sulfonic acid of storage tank output, the sulfuric acid of sulfuric acid storage tank output are input to the dual-screw-stem machine 13 according to scheduled mass ratio,
And premix is exported after dual-screw-stem machine mixing；
Cracking system 20, the cracking system 20 by under 21 high temperature of cracking still by the broken recycling plastic cement
It is decomposed into the Primary product containing powder impurity and purification is carried out by the first condenser 22 and obtain purified product；
Settling system 30, the settling system 30 connect with the first condenser 22 of the cracking system 20, mention described
The precipitating basin that pure products are input to the settling system is stored；
System for rearranging 40, the rearrangement kettle of the system for rearranging 40 are connect with the output end of the precipitating basin, will be described heavy
The purified product of shallow lake basin storage is input to the rearrangement kettle and carries out rearrangement reaction, and raw after the condensation of the second condenser
At primary DMC product；
Adsorption system 50, the adsorption system 50 are connect with the system for rearranging 40, for the system for rearranging to work
The primary DMC product generated is by exporting middle rank DMC product after inhaling the progress toxic gas absorption of carbon kettle；
Filtering and discharge system 60, the filtering is connect with discharge system 60 with the adsorption system 50, for passing through
Filter exports ultimate DMC product after being filtered to the middle rank DMC product, and is stored by finished product basin.
Due to the process units of the DMC, using the production method of above-mentioned DMC, therefore the two is having the same beneficial
Effect, details are not described herein by the present invention.
The process units of DMC in the present invention passes through cracking after being pre-mixed raw material by dual-screw-stem machine 13
The cracking still 21 of system 20 is cracked, and the low molecule in broken recycling plastic cement therein is extracted, is decomposed into and contains
Have the Primary product of powder impurity, Primary product is liquid, after be heated after be evaporated to the first condenser cold 22 but become it is useful
Liquid, become purified product, only remaining granulated slag after liquid evaporation is complete under high temperature.
It, can't very will wherein due to can also generate some wastes, and in cracking process in cracking process
Plastic cement decomposed, thus might have defective material, subsequent cracking process may be will affect, so that the residue in cracking still becomes
More, subsequent cracking process is affected, in order to solve this technical problem, in one embodiment of the invention, the DMC
Process units further include connect with the output end of 21 bottom of cracking still of the cracking system 20 go powder recovery system, use
The granulated slag in the Primary product generated in the recycling cracking still course of work.
Powder recovery system is gone by connection, the residue or granulated slag for allowing to continue by cracking still 21 are removed,
So that often in a kind of clean, spacious state in cracking still, the enough mixed raw materials for persistently receiving upstream conveying of energy are improved
The continuous service ability of whole device.
Recycling can of the present invention for going powder recovery system without limitation, granulated slag can be carried out by the way of accumulation and is returned
It receives, i.e., opens the valve at cracking still bottom at regular intervals, granulated slag therein is discharged into the recycling can of powder recovery system,
Storage device can be set in cracking still, carry out the storage of granulated slag, granulated slag therein is persistently then output to powder and is recycled
The recycling can of system, or in other manners.
The effect of condenser in the present invention is purified to the liquid after cracking, and heating and gasifying, then coolant liquid are passed through
The mode of change, realizes the purpose of purification, the present invention for first condenser 22 without limitation, in order to improve refining effect,
The impurity in subsequent product is reduced, general first condenser 22 includes at least condensed in two stages device, for splitting described
The Primary product for solving kettle cracking carries out repeatedly purification and obtains the purified product.
The present invention is not specifically limited the series of the first condenser 22, needs to need to determine according to preset purification.
Due to after ultimately producing DMC product in the present invention, also can there are many intermediate product, or other impurity,
In order to improve the quality of final product, need to be filtered using filter, the present invention for the structure of filter and
Without limitation, in one embodiment of the invention, the filter 61 is plate filter, the plate-frame filtering to filter type
Device from top exports the ultimate DMC product after being filtered by the middle rank DMC product described in bottom input.
The mode pumped is sent by using object, and semi-finished product DMC is input to plate filter bottom as material and was carried out
Filter reduces the damage caused by filter due to gravity, improves filter effect.
Due to both there is solid raw material in the present invention, there is also solid raw materials, have for the input quantity of raw material tight
The requirement of lattice, therefore, in order to improve the monitoring for whole process, in one embodiment of the invention, the production of the DMC
Device further includes the output end and the liquid meter that the powder metering container 11 of the premix system 10 is arranged in
The metering pump of the storage tank of container 12, sulfuric acid storage tank, the material output quantity current for real-time detection.
By described in the broken recycling plastic cement of input interior between the real-time detection unit dual-screw-stem machine 13, benzene
The weight of sulfonic acid, the sulfuric acid refers to, so that staff generally in such a way that display screen is shown for staff
The input information of raw material can be obtained in real time, further, it is also possible to carry out alarm setting, i.e., it is more than certain that the input quantity of raw material, which is floated,
Range is alarmed, to ensure that the efficient operation of entire production process, is improved the quality of product, is reduced the wave of raw material
Take.
In conclusion the production method and device of DMC provided in an embodiment of the present invention, by using according to predetermined weight
Broken recycling plastic cement and benzene sulfonic acid, sulfuric acid material are input to dual-screw-stem machine by ratio, by dual-screw-stem machine carry out mixing and
Dispersion, using the feature that the twin-screw gap of dual-screw-stem machine is small, velocity of rotation is fast, further mixes material, is ground, ground
The material ground is uniformly mixed, granularity is small and can be realized serialization grinding, and there is no waste and the people of material for centre
Work transhipment, directly inputs raw material from corresponding device, so that it may export finished product from output end, save human cost, reduce
Production cycle.
The production method and device of DMC provided by the present invention are described in detail above.It is used herein
A specific example illustrates the principle and implementation of the invention, and the above embodiments are only used to help understand originally
The method and its core concept of invention.It should be pointed out that for those skilled in the art, not departing from this hair
, can be with several improvements and modifications are made to the present invention under the premise of bright principle, these improvement and modification also fall into power of the present invention
In the protection scope that benefit requires.
Claims (10)
1. a kind of production method of DMC characterized by comprising
Step 1, broken recycling plastic cement and benzene sulfonic acid, sulfuric acid are input to double spiral shells from head tank according to scheduled weight ratio
Premixing is carried out in bar machine to form premix and export；
Step 2, the premix dual-screw-stem machine exported generates DMC after being cracked, precipitated, being reset, adsorb and produces
Product.
2. the production method of DMC as described in claim 1, which is characterized in that the step 1 includes:
Input the recycling plastic cement in the front end of the dual-screw-stem machine, the middle-end of the dual-screw-stem machine input the benzene sulfonic acid,
The sulfuric acid, in the premix that the end of the dual-screw-stem machine forms the recycling plastic cement, the benzene sulfonic acid, the sulfuric acid
Material output.
3. the production method of DMC as claimed in claim 2, which is characterized in that the step 1 further include:
The broken recycling plastic cement and the benzene sulfonic acid, the sulfuric acid are successively inputted to described according to scheduled weight ratio
Premixing is carried out in dual-screw-stem machine to form the premix and export.
4. the production method of DMC as claimed in claim 3, which is characterized in that the step 1, further includes:
By the broken recycling plastic cement and the benzene sulfonic acid, the sulfuric acid according to scheduled weight ratio with weightless state
It is input in the dual-screw-stem machine be pre-mixed and forms premix and export.
5. the production method of DMC as claimed in claim 4, which is characterized in that further include:
Sulphur described in the broken recycling plastic cement of real-time detection and the unit of display time interior input dual-screw-stem machine, benzene
The weight of sour, the described sulfuric acid.
6. a kind of process units of DMC characterized by comprising
Premix system, the premix system include powder metering container, liquid measuring vessel and dual-screw-stem machine, the powder
Benzene sulfonic acid, the sulphur that the broken recycling plastic cement of measuring container output and the benzene sulfonic acid storage tank of the liquid measuring vessel export
The sulfuric acid of sour storage tank output is input to the dual-screw-stem machine according to scheduled mass ratio, and mixes by the dual-screw-stem machine
After export premix；
Cracking system, the cracking system by under cracking still high temperature by the broken recycling plastic cement be decomposed into containing
The Primary product of powder impurity simultaneously carries out purification acquisition purified product by the first condenser；
Settling system, the settling system connect with the first condenser of the cracking system, the purified product are input to
The precipitating basin of the settling system is stored；
System for rearranging, the rearrangement kettle of the system for rearranging connect with the output end of the precipitating basin, the precipitating basin are deposited
The purified product of storage is input to the rearrangement kettle and carries out rearrangement reaction, and generates primary after the condensation of the second condenser
DMC product；
Adsorption system, the adsorption system are connect with the system for rearranging, described in generating system for rearranging work
Primary DMC product is by exporting middle rank DMC product after inhaling the progress toxic gas absorption of carbon kettle；
Filtering and discharge system, the filtering are connect with discharge system with the adsorption system, for passing through filter to described
Intermediate DMC product exports ultimate DMC product after being filtered, and is stored by finished product basin.
7. the process units of DMC as claimed in claim 6, which is characterized in that further include the cracking still bottom with the cracking system
Powder recovery system is gone in the output end connection in portion, for recycling the Primary product generated in the cracking still course of work
In the granulated slag.
8. the process units of DMC as claimed in claim 7, which is characterized in that first condenser includes at least condensed in two stages
Device, the Primary product for cracking the cracking still carry out repeatedly purification and obtain the purified product.
9. the process units of DMC as claimed in claim 8, which is characterized in that the filter is plate filter, the sheet frame
Filter from top exports the ultimate DMC product after being filtered by the middle rank DMC product described in bottom input.
10. the process units of DMC as claimed in claim 9, which is characterized in that further include the institute that the premix system is arranged in
The metering pump of the output end of powder metering container and the storage tank of the liquid measuring vessel, sulfuric acid storage tank is stated, for real
When detect current material output quantity.
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