CN217093499U - Low-energy-consumption device for producing expanded polystyrene by using body method - Google Patents
Low-energy-consumption device for producing expanded polystyrene by using body method Download PDFInfo
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- CN217093499U CN217093499U CN202220828956.0U CN202220828956U CN217093499U CN 217093499 U CN217093499 U CN 217093499U CN 202220828956 U CN202220828956 U CN 202220828956U CN 217093499 U CN217093499 U CN 217093499U
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- mixer
- plug flow
- flow reactor
- expanded polystyrene
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- 239000004794 expanded polystyrene Substances 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000005265 energy consumption Methods 0.000 title claims abstract description 12
- 239000003063 flame retardant Substances 0.000 claims abstract description 28
- 230000003068 static effect Effects 0.000 claims abstract description 27
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 claims abstract description 23
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000004594 Masterbatch (MB) Substances 0.000 claims abstract description 18
- 239000010439 graphite Substances 0.000 claims abstract description 17
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 17
- 229920006248 expandable polystyrene Polymers 0.000 claims abstract description 16
- 238000005453 pelletization Methods 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims description 42
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 239000004088 foaming agent Substances 0.000 claims description 8
- 239000012752 auxiliary agent Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 abstract description 18
- 239000004793 Polystyrene Substances 0.000 description 15
- 229920002223 polystyrene Polymers 0.000 description 15
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 12
- 239000012530 fluid Substances 0.000 description 12
- 239000000725 suspension Substances 0.000 description 11
- 238000002156 mixing Methods 0.000 description 7
- QWTDNUCVQCZILF-UHFFFAOYSA-N isopentane Chemical compound CCC(C)C QWTDNUCVQCZILF-UHFFFAOYSA-N 0.000 description 6
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 5
- 239000011324 bead Substances 0.000 description 5
- 238000001514 detection method Methods 0.000 description 5
- 239000002912 waste gas Substances 0.000 description 5
- 239000002351 wastewater Substances 0.000 description 5
- 238000001035 drying Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- AFABGHUZZDYHJO-UHFFFAOYSA-N dimethyl butane Natural products CCCC(C)C AFABGHUZZDYHJO-UHFFFAOYSA-N 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002667 nucleating agent Substances 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 229910005191 Ga 2 O 3 Inorganic materials 0.000 description 2
- 229910019440 Mg(OH) Inorganic materials 0.000 description 2
- 239000012736 aqueous medium Substances 0.000 description 2
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 2
- 239000008116 calcium stearate Substances 0.000 description 2
- 235000013539 calcium stearate Nutrition 0.000 description 2
- 238000010835 comparative analysis Methods 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- LYRFLYHAGKPMFH-UHFFFAOYSA-N octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(N)=O LYRFLYHAGKPMFH-UHFFFAOYSA-N 0.000 description 2
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 2
- 239000004604 Blowing Agent Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 231100001240 inorganic pollutant Toxicity 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 239000011325 microbead Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 229920000747 poly(lactic acid) Polymers 0.000 description 1
- 229920001896 polybutyrate Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 239000003505 polymerization initiator Substances 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Abstract
The utility model provides a low energy consumption body method production expanded polystyrene device, contains polymerization reactor (1), and polymerization reactor (1) lower extreme passes through discharge pump (4) and connects blender (5), again with pipe connection static hybrid plug flow reactor (6), static mixer (7), plug flow reactor (8), pump (9), high pressure underwater pelletizing system (10) in proper order. When the front end of the mixer (5) is provided with an interface for adding the master batch of the flame retardant in a molten state, the flame-retardant expandable polystyrene EPS can be produced; when the front end of the mixer (5) is provided with an interface for adding the graphite master batch in a molten state, the expandable polystyrene EPS can be produced. The size of the expanded polystyrene particles obtained by the utility model can be strictly controlled between 0.7 mm and 1.0mm, the expanded polystyrene particles have good impact resistance and tensile strength, and the unit energy consumption is reduced to one third.
Description
Technical Field
The utility model relates to a expanded polystyrene resin technical field, concretely relates to production expanded polystyrene device.
Background
The device for producing expanded polystyrene is a device for producing Expanded Polystyrene (EPS) by using styrene as a main raw material. The existing process for the production of Expanded Polystyrene (EPS), obtained by a batch polymerization process in suspension, comprises the following steps: dispersing liquid styrene monomer in water medium with suspending dispersant, adding polymerization initiator into the reactor via stirring and heating to polymerize styrene monomer; the polymerization is completed by adding a blowing agent at a certain conversion of the monomers, discharging, washing, drying and sieving to obtain green expanded polystyrene beads, the diameter of which ranges from 0.1 to 3 mm. The products obtained by this suspension process have some drawbacks, such as: the bead size distribution is very broad, requiring classification by screening and discarding some beads that are too large and too small; there are significant limitations to the production of special products, such as colored beads and/or microbeads containing heterogeneous fillers or additives; nucleating agents and/or flame retardants are difficult to incorporate into beads or can inhibit polymerization; because the method is carried out in an aqueous medium, a suspension dispersant needs to be added, the water consumption is high, and the aqueous medium contains more organic and inorganic pollutants, so that a large amount of sewage is generated, and the environmental problem exists; the batch polymerization process also has the problems of high energy consumption, high labor intensity of personnel, poor product stability and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a low energy consumption body method production has good impact resistance and tensile strength's expanded polystyrene device is provided.
In order to solve the technical problem, the utility model provides a following technical scheme:
1. a low energy consumption device for producing expanded polystyrene by a bulk method adopts a continuous bulk method production process to produce expanded polystyrene, and comprises a polymerization reactor, a condenser, a discharge pump, a mixer, a plug flow reactor, a static mixer, a plug flow reactor, a pump and a high-pressure underwater pelletizing system; and are connected in sequence by pipelines;
the upper end seal head of the polymerization reactor is provided with a material inlet, a reaction stirrer and a connecting condenser, and the lower end of the polymerization reactor is connected with a discharge pump;
the plug flow reactor is a static mixing plug flow reactor;
the front end of the mixer is provided with 2 material inlets which are respectively connected with the pump and the auxiliary agent inlet pipeline, and the rear end of the static mixer is provided with 2 material inlets which are respectively connected with the plug flow reactor and the foaming agent inlet pipeline.
As a further improvement scheme of the utility model, the front end of the mixer is provided with an interface for adding the master batch of the flame retardant in a molten state, and the flame-retardant expandable polystyrene EPS can be produced; melting the flame retardant master batch by a screw extruder, injecting the melted flame retardant master batch into a mixer, and mixing the melted flame retardant master batch with a polystyrene foaming agent to embed a flame retardant into a polystyrene molecular chain to obtain flame-retardant expandable polystyrene particles; compared with the common expandable polystyrene EPS particle product, the flame-retardant expandable polystyrene EPS plate has the fireproof performance and the heat resistance.
As a further improvement of the utility model, the interface that adds molten state graphite master batch is installed to the blender front end, can produce graphite expanded polystyrene EPS. And melting the graphite master batch by a screw extruder, injecting the melted graphite master batch into a mixer, and mixing the graphite master batch with a polystyrene foaming agent to embed a graphite structure into a polystyrene molecular chain so as to obtain black graphite expandable polystyrene particles. Compared with the common expandable polystyrene EPS particle product, the graphite expandable polystyrene EPS plate has good fireproof performance and higher heat resistance performance.
2. The operation steps of the device for producing the expanded polystyrene are as follows:
continuously feeding styrene serving as a main raw material and auxiliary materials (such as nucleating agent and lubricant) into a polymerization reactor, and controlling the material flow temperature of the polymerization reactor to be 120-; when the material conversion rate in the polymerization reactor reaches 60-70%, the material in the polymerization reactor is taken as a first strand of material and conveyed to a mixer through a discharge pump, meanwhile, a second strand of material auxiliary agent is also input into the mixer, the two strands of materials are uniformly mixed in the mixer and then enter the plug flow reactor, and the material flow temperature of the plug flow reactor is controlled to be 130-170 ℃. And after the materials are qualified in reaction in the plug flow reactor, inputting the materials as a third material into a static mixer, simultaneously, inputting a fourth fluid foaming agent and an auxiliary agent into the mixer, uniformly mixing the materials, and then, entering the plug flow reactor, controlling the material flow temperature of the plug flow reactor to be a granulation temperature, inputting the materials after the materials are qualified in reaction in the plug flow reactor into a high-pressure underwater pelletizing system by a pump, granulating and drying to obtain the finished expanded polystyrene EPS particles.
The nucleating agent is: low molecular weight polyethylene, Al (OH) 3 、Mg(OH) 2 、ZrO 2 、V 2 O 5 、CuO、ZnO、Ga 2 O 3 One or a mixture thereof;
the lubricant is: one or a mixture of white oil, zinc stearate, calcium stearate, stearic acid amide and tributyl phosphate;
the foaming agent is as follows: one of n-pentane and isopentane;
the auxiliary agent is white oil, zinc stearate, calcium stearate, stearic acid amide, Al (OH) 3 、Mg(OH) 2 、ZrO 2 、V 2 O 5 、CuO、ZnO、Ga 2 O 3 Tributyl phosphate, low molecular weight polyethylene, PEG, PVA, PLA, PBAT, PBS, PET, PBT, or a mixture thereof.
Compared with the prior art, the utility model the advantage that has:
1. the size of the expanded polystyrene particles obtained by the utility model can be strictly controlled between 0.7 mm and 1.0mm, and the expanded polystyrene particles have good foaming processability and excellent appearance; the obtained expanded polystyrene material has good impact resistance and tensile strength.
2. The unit energy consumption of the expanded polystyrene particles obtained by the utility model is reduced to one third; the produced waste water and waste gas are less, and the environment-friendly effect is good; the production process is safe and controllable, the risk is low, and the energy consumption is low.
Drawings
FIG. 1 is a schematic view of the technological process of the apparatus of this patent.
Wherein: (1) the device comprises a polymerization reactor, (2) a stirrer, (3) a condenser, (4) a discharge pump, (5) a mixer, (6) a static mixing type plug flow reactor, (7) a static mixer, (8) a plug flow reactor, (9) a pump and (10) a high-pressure underwater pelletizing system.
Detailed Description
The technical solution of the present invention will be further explained with reference to the following embodiments.
Example 1
Fig. 1 is a process flow diagram implemented in the present patent, and the present embodiment adopts the following technical scheme:
the device comprises a polymerization reactor 1, a condenser 3, a discharge pump 4, a mixer 5, a static mixing type plug flow reactor 6, a static mixer 7, a plug flow reactor 8, a pump 9 and a high-pressure underwater pelletizing system 10, wherein all the components are sequentially connected by pipelines;
the upper end enclosure of the polymerization reactor 1 is provided with a material inlet, a reaction stirrer 2 and a connecting condenser 3, and the lower end of the polymerization reactor 1 is connected with a mixer 5 through a discharge pump 4.
When the device is used for producing the foamed polystyrene, the material comprises the following components in parts by weight:
92.5kg of styrene and 1.5 kg of low molecular weight polyethylene as an auxiliary material are added into a polymerization reactor 1, the temperature of the materials in the polymerization reactor 1 is controlled at 143 ℃ for reaction, when the conversion rate of the styrene in the polymerization reactor 1 reaches 65%, the materials in the polymerization reactor 1 are taken as a first material and conveyed into a mixer 5 through a discharge pump 4, meanwhile, 1.0 kg of white oil as a second material auxiliary agent is conveyed into the mixer 5 to be uniformly mixed and then enters a static mixed type plug flow reactor 6, and the material flow temperature of the static mixed type plug flow reactor 6 is controlled at 145 ℃ to 160 ℃. The materials are reacted in a static mixed type plug flow reactor 6 to be qualified and then are input into a static mixer 7 as a third material, meanwhile, a fourth fluid foaming agent of n-pentane and isopentane of 3.0kg are respectively input into the static mixer 7, the third material and the fourth material are uniformly mixed in the static mixer 7 and then enter a plug flow reactor 8, the material flow temperature of the plug flow reactor 8 is controlled to be 160-175 ℃, when the conversion rate of styrene in the plug flow reactor 8 reaches 99.9%, the third material and the fourth material are input into a high-pressure underwater pelletizing system 10 through a pump 9, and the pellets are dried to obtain a finished product, namely, the expanded polystyrene EPS particles. The comparative analysis of the data of the method and the data of the suspension method for preparing EPS shows that the production consumption data of the product obtained in example 1 is shown in Table 1, and the performance detection data is shown in Table 2.
TABLE 1 production consumption data
Table 2 product performance test data
From table 1 it can be: the utility model discloses the device is because the continuous incessant production method unit consumption that adopts will be less than traditional clearance suspension method production unit consumption, and raw and other materials consumption is few, and the energy consumption is low, and the waste water waste gas of emission is a lot less, and suspension method production is owing to be aquatic production, and the waste water waste gas that causes the production is many. Can find out through table 2 simultaneously, the utility model discloses the product molecular weight that the device was produced is bigger, and mechanical strength is bigger. The utility model discloses the product particle size that the device was produced cuts out, can control at very little within range, and the product particle size that the suspension method was produced disperses out through the agitator in the reactor, and product particle size distribution is wide.
Example 2
This embodiment is based on embodiment 1, and adds a fifth fluid interface at the inlet of the front end of the static mixer 7. The fifth stream was a flame retardant polystyrene masterbatch containing 0.7kg of flame retardant. Extruding the fifth fluid flame retardant polystyrene master batch by a screw rod, inputting the fifth fluid flame retardant polystyrene master batch into an inlet at the front end of a static mixer 7, converging 3.0kg of the third fluid polystyrene master batch and the fourth fluid foaming agent n-pentane and isopentane into the static mixer 7, shearing and mixing uniformly, then entering a plug flow reactor 8, conveying the mixture to a high-pressure underwater pelletizing system 10 by a pump 9, and pelletizing and drying to obtain the flame-retardant foamable polystyrene particle finished product. The oxidation index of the flame-retardant expandable polystyrene reaches 32 by detection, and the requirement of a B1-grade fireproof material is met. The data of the method and the data of EPS prepared by the suspension method are compared and analyzed, the production consumption data of the product obtained in example 2 are shown in Table 3, and the product performance detection data are shown in Table 4.
TABLE 3 production consumption data
Table 4 product performance test data
As can be seen from table 3: the utility model discloses the production unit consumption of device will be less than traditional suspension method production unit consumption, and raw and other materials consume fewly, and the energy consumption is low, and the waste water waste gas of emission is few a lot less. As can be seen from the table 4, the utility model discloses the product particle size that the device was produced can be controlled in ideal size, and the product particle size distribution that the suspension method was produced is wide. The fire retardant has been added in this embodiment, makes the product of producing can reach B1 level fire-proof material requirement, the utility model discloses the product of device production is fire-retardant type expandable polystyrene.
Example 3
This embodiment is based on embodiment 1, and adds a fifth fluid interface at the inlet of the front end of the static mixer 7. The fifth fluid is polystyrene master batch containing graphite and flame retardant, wherein the polystyrene master batch contains 2.0kg of graphite and 0.3kg of flame retardant. The fifth fluid graphite polystyrene master batch is extruded by a screw and input to an inlet at the front end of a static mixer 7 and a third fluid polystyrene, the fourth fluid foaming agent is converged into the static mixer 7, sheared and uniformly mixed, then enters an advection flow reactor 8, and then is input to a high-pressure underwater pelletizing system 10 by a pump 9 for pelletizing and drying to form finished graphite type expanded polystyrene particles. The oxygen index of the flame-retardant expandable polystyrene reaches 32 by detection, and the requirement of a B1-grade fireproof material is met. The comparative analysis of the data of the method and the data of the suspension method for preparing EPS shows that the production consumption data of the product obtained in example 3 is shown in Table 5, and the product performance detection data is shown in Table 6.
TABLE 5 production consumption data
Table 6 product performance test data
As can be seen from tables 5 and 6: the device contains graphite and fire retardant polystyrene mother to the foamable polystyrene through increasing. Due to the addition of the graphite, the flame-retardant grade expandable polystyrene with the same flame-retardant effect can be obtained only by adding a small amount of flame retardant; therefore, the production cost can be reduced, and the heat insulation plate has better heat insulation effect due to the addition of graphite. Other properties, such as raw material consumption, waste water and waste gas discharge, were not much changed from example 2.
Claims (5)
1. The utility model provides a low energy consumption body method production expanded polystyrene device which characterized in that: comprises a polymerization reactor (1), wherein a material inlet, a reaction stirrer (2) and a connecting condenser (3) are arranged on an upper end enclosure of the polymerization reactor (1); the lower end of the polymerization reactor (1) is connected with a mixer (5) through a discharge pump (4), and then is sequentially connected with a static mixed type plug flow reactor (6), a static mixer (7), a plug flow reactor (8), a pump (9) and a high-pressure underwater pelletizing system (10) through pipelines.
2. The apparatus of claim 1, wherein: the front end of the mixer (5) is provided with 2 material inlets which are respectively connected with the discharge pump (4) and an auxiliary agent inlet pipeline.
3. The apparatus of claim 1, wherein: the front end of the mixer (5) is provided with an interface for adding the master batch of the flame retardant in a molten state, and the flame-retardant expandable polystyrene EPS can be produced.
4. The apparatus of claim 1, wherein: the front end of the mixer (5) is provided with an interface for adding molten graphite master batches, and the graphite expandable polystyrene EPS can be produced.
5. The apparatus of claim 1, wherein: the front end of the static mixer (7) is provided with 2 material inlets which are respectively connected with the static mixed type plug flow reactor (6) and a foaming agent inlet pipeline, and the rear end of the static mixer (7) is connected with the plug flow reactor (8).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220828956.0U CN217093499U (en) | 2022-04-12 | 2022-04-12 | Low-energy-consumption device for producing expanded polystyrene by using body method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220828956.0U CN217093499U (en) | 2022-04-12 | 2022-04-12 | Low-energy-consumption device for producing expanded polystyrene by using body method |
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| CN202220828956.0U Expired - Fee Related CN217093499U (en) | 2022-04-12 | 2022-04-12 | Low-energy-consumption device for producing expanded polystyrene by using body method |
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