CN202898178U - Pre-treatment system of PTA (Pure Terephthalic Acid) waste - Google Patents
Pre-treatment system of PTA (Pure Terephthalic Acid) waste Download PDFInfo
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- CN202898178U CN202898178U CN 201220617696 CN201220617696U CN202898178U CN 202898178 U CN202898178 U CN 202898178U CN 201220617696 CN201220617696 CN 201220617696 CN 201220617696 U CN201220617696 U CN 201220617696U CN 202898178 U CN202898178 U CN 202898178U
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- waste
- pta
- waste material
- reaction chamber
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- 239000002699 waste material Substances 0.000 title claims abstract description 60
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 title abstract description 38
- 238000002203 pretreatment Methods 0.000 title abstract description 5
- 238000006243 chemical reaction Methods 0.000 claims abstract description 17
- 239000000126 substance Substances 0.000 claims abstract description 12
- 238000001035 drying Methods 0.000 claims abstract description 10
- 230000003472 neutralizing effect Effects 0.000 claims abstract description 5
- 239000000706 filtrate Substances 0.000 claims description 15
- 238000001914 filtration Methods 0.000 claims description 4
- 230000008676 import Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 239000005020 polyethylene terephthalate Substances 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000002360 preparation method Methods 0.000 abstract description 4
- 238000003756 stirring Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 229920004934 Dacron® Polymers 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 abstract 1
- 239000004014 plasticizer Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- BJAJDJDODCWPNS-UHFFFAOYSA-N dotp Chemical compound O=C1N2CCOC2=NC2=C1SC=C2 BJAJDJDODCWPNS-UHFFFAOYSA-N 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 239000004902 Softening Agent Substances 0.000 description 7
- 239000000047 product Substances 0.000 description 6
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 description 4
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 4
- 229920004933 Terylene® Polymers 0.000 description 4
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 241001235128 Doto Species 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- YIWUKEYIRIRTPP-UHFFFAOYSA-N 2-ethylhexan-1-ol Chemical compound CCCCC(CC)CO YIWUKEYIRIRTPP-UHFFFAOYSA-N 0.000 description 1
- NRTLIYOWLVMQBO-UHFFFAOYSA-N 5-chloro-1,3-dimethyl-N-(1,1,3-trimethyl-1,3-dihydro-2-benzofuran-4-yl)pyrazole-4-carboxamide Chemical compound C=12C(C)OC(C)(C)C2=CC=CC=1NC(=O)C=1C(C)=NN(C)C=1Cl NRTLIYOWLVMQBO-UHFFFAOYSA-N 0.000 description 1
- BWDBEAQIHAEVLV-UHFFFAOYSA-N 6-methylheptan-1-ol Chemical compound CC(C)CCCCCO BWDBEAQIHAEVLV-UHFFFAOYSA-N 0.000 description 1
- 239000002028 Biomass Substances 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 239000000020 Nitrocellulose Substances 0.000 description 1
- FJWGYAHXMCUOOM-QHOUIDNNSA-N [(2s,3r,4s,5r,6r)-2-[(2r,3r,4s,5r,6s)-4,5-dinitrooxy-2-(nitrooxymethyl)-6-[(2r,3r,4s,5r,6s)-4,5,6-trinitrooxy-2-(nitrooxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-3,5-dinitrooxy-6-(nitrooxymethyl)oxan-4-yl] nitrate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O)O[C@H]1[C@@H]([C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@@H](CO[N+]([O-])=O)O1)O[N+]([O-])=O)CO[N+](=O)[O-])[C@@H]1[C@@H](CO[N+]([O-])=O)O[C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O FJWGYAHXMCUOOM-QHOUIDNNSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003113 dilution method Methods 0.000 description 1
- OEIWPNWSDYFMIL-UHFFFAOYSA-N dioctyl benzene-1,4-dicarboxylate Chemical compound CCCCCCCCOC(=O)C1=CC=C(C(=O)OCCCCCCCC)C=C1 OEIWPNWSDYFMIL-UHFFFAOYSA-N 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 229920001220 nitrocellulos Polymers 0.000 description 1
- 239000008385 outer phase Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 150000004965 peroxy acids Chemical class 0.000 description 1
- 210000002381 plasma Anatomy 0.000 description 1
- 239000008031 plastic plasticizer Substances 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Abstract
The utility model relates to a pre-treatment system of PTA (Pure Terephthalic Acid) waste. The system is characterized by comprising a neutralizing and stirring device, a filter press and a drying device, wherein the neutralizing and stirring device is provided with a reaction chamber and a stirrer arranged in the reaction chamber, and the reaction chamber is internally provided with a waste inlet, a waste outlet and an alkaline substance supply device; the filter press presses and squeezes water in neutralized waste, wherein the feed inlet is communicated with the waste outlet; and the drying device comprises a conveyer belt and a plurality of hot-air blowers arranged above the conveyer belt, and the outlets of the hot-air blowers face the transmission surface of the conveyer belt and are sequentially arranged along the length direction the conveyer belt at intervals. Compared with the prior art, the system provided by the utility model has the beneficial effects that the pre-treatment system for pre-treating PTA waste generated in the production process of dacron is innovatively designed through improvement of a preparation process of a cable plasticizer by PTA waste in the background technology. The system has the advantages of simple step, high production efficiency and low cost.
Description
Technical field
The utility model relates to the stationery technical field, relates in particular to a kind of pretreatment system of PTA waste material.
Background technology
Softening agent is for increasing its plasticity-, flowability and making finished product have the material that snappiness adds when processing superpolymer (such as rubber, plastics, coating etc.) moulding.Dioctyl terephthalate (DOTP) is a kind of main plastic plasticizer of excellent property, except plasticizing capacity a little less than the dioctyl phthalate (DOP) (DOP), volatility, volume specific resistance, and the aspect such as the consistency of PVC and heatproof weathering resistance more superior, and toxicity is significantly less than DOP.DOTP is mainly used in 70 ℃ of CABLE MATERIALS of heatproof, and because its volatility is low, use contains quantitative DOTP and can satisfy the requirement of wire cable material temperature resistant grade fully, reaches International Electrotechnical Commission Standard (IEC), is used as first-selected softening agent and uses in PVC plastic cable sheath.Its softening agent that also can be used as other plastics uses, leatheroid film for example, nitrile rubber, cellulose nitrate, polyvinyl butyral etc.In addition, DOTP all has application at paint, paper, lubricant, bidirectional thin, blood plasma poly-bag and artwork, and prospect is very wide.
Suitability for industrialized production DOTP mainly adopts raw material terephthalic acid (PTA) and the preparation of 2-Ethylhexyl Alcohol (isooctyl alcohol, octanol) esterification at present.Raw material PTA is the lower end product of petrochemical complex, is a kind of comparatively expensive industrial chemicals, and the DOTP price that this preparation method produces is higher.
In addition, the at present application of PTA is more concentrated, and the PTA more than 90% is for the production of polyethylene terephthalate (terylene) in the world.In the production process of terylene, can produce a large amount of wastes, those wastes enter in the wastewater disposal basin after the peracid dissolving, form the biosolid waste (being designated hereinafter simply as the PTA waste material) that is rich in PTA.These PTA waste materials are difficult to degraded, and as not processing the impact that can cause on the mankind's living environment very severe, processing then needs to drop into a large amount of funds, has increased the production cost of enterprise.
The scheme that exists in the prior art some to utilize above-mentioned PTA waste material to synthesize DOTP; adopt scheme that the PTA waste material prepares DOTO not only raw material be easy to get; simultaneously can digest refuses a large amount of in the industrial production; turn waste into wealth; reduced production cost; but also protection of the environment, be current comparatively rationally and one of the approach of the high recycling of economic benefit.
The scheme that a kind of feasible PTA waste material prepares DOTO be after the PTA that will reclaim purifies through alkalization elimination impurity again acidifying drying to generate purer PTA, and then with the synthetic DOTP softening agent of original technique, the pre-treatment step of this scheme is various, cost is higher, and owing to the multistep processing has reduced final yield.
In addition, interimly disclosed a kind of " reclaiming the novel process that PTA produces the cable softening agent " in 2010 05 at public publication publication " biomass chemical engineering ", this industrial design concept is the PTA waste material to be carried out after the pre-treatment dehydration directly and octanol reacts, and will react more afterwards the generation product and carry out purifying products acquisition DOTP.Adopt this technique can avoid all multi-steps such as the purified alkalization that brings of raw material, purification, acidifying, drying, the separation of all impurity is all removed in purifying products, the technological process step that this method is produced DOTP is few, easy to operate, be easy to produce, and quality product is good.
But above-mentioned technique only in the laboratory by experiment vessel carry out manipulation, in the suitability for industrialized production preparation process of reality, obviously need that design is a kind of to be applicable to high-level efficiency in enormous quantities and to carry out pretreated equipment for the PTA waste material.And there is no at present with a kind of pretreated equipment of this PTA waste material that is applicable to.
The utility model content
The purpose of the utility model embodiment is for the structural shortcoming/blank of prior art, proposes a kind of pretreatment system that carries out pretreated PTA waste material for the PTA waste material that produces in the terylene production process.
In order to reach above-mentioned utility model purpose, the pretreatment system of a kind of PTA waste material that the utility model embodiment proposes is achieved through the following technical solutions:
A kind of pretreatment system of PTA waste material is characterized in that comprising:
In and whipping appts, have alkaline substance feedway, reaction chamber and be located at agitator in this reaction chamber, be provided with waste material import, waste outlet in the described reaction chamber, the outlet of described alkaline substance feedway accesses in the described reaction chamber;
Pressure filter, the waste material press filtration drains moisture after being used for neutralizing, and its opening for feed is communicated with described waste outlet;
Drying unit comprises the conveying belt that extends to described pressure filter discharge port below and some calorifiers of being located at described conveying belt top, and described calorifier outlet is towards the feed surface of described conveying belt, and the successively interval setting of length direction of prolonging conveying belt.
Described pretreatment system also comprises the filtrate settling chamber that is communicated with described pressure filter filtrate outlet.
The bottom of described filtrate settling chamber is communicated with described feed opening of press filter by the pipeline with pump.
Described pressure filter is plate-and-frame filter press.
Compared with prior art, the beneficial effects of the utility model are: improve by producing cable softening agent technique for PAT waste material in the background technology, the design of novelty carry out the pretreatment system of pretreated PTA waste material for the PTA waste material that produces in the terylene production process.This system has advantages of that step is simple, production efficiency is high, with low cost.
Description of drawings
By the description of its exemplary embodiment being carried out below in conjunction with accompanying drawing, the above-mentioned feature and advantage of the utility model will become apparent and easily understand.
Fig. 1 is the utility model embodiment one-piece construction schematic diagram.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail, so that technician's of the same trade understanding:
As shown in Figure 1, label represents respectively:
Waste material import 1, reaction chamber 2, agitator 3, waste outlet 4, filtrate outlet 5, filtrate settling chamber 6, delivery wheel 7, alkaline substance feedway 8, alkaline substance filling tube 9, opening for feed 10, pressure filter 11, discharge port 12, conveying belt 13, calorifier 14.
Referring to Fig. 1, provide a kind of pretreatment system of PTA waste material in the present embodiment, roughly based on the mentality of designing that " reclaims the novel process that PTA produces the cable softening agent " in the background technology.But, because the PTA waste material is the product after the chemical industry waste is dissolved by acid, it has higher acidity, need not consider acid solution in the laboratory for the etching problem of equipment, in the selection problem that then also needs to consider to reduce equipment and materials in the subsequent production process in actual industrial production.Based on such consideration, during mainly comprising, the pretreatment system of PTA waste material consists of with whipping appts, pressure filter 11 and drying unit three parts.
Wherein:
In and whipping appts have alkaline substance feedway 8, reaction chamber 2 and be located at agitator 3 in this reaction chamber 2.Be provided with waste material import 1, waste outlet 4 in the described reaction chamber 2, the outlet of described alkaline substance feedway 8 is by in the described reaction chamber 2 of alkaline substance filling tube 9 accesses.
The waste outlet 4 of described reaction chamber 2 is pumped to the opening for feed 10 of pressure filter 11 by pipeline.Pressure filter 11 is plate-and-frame filter press, and the waste material press filtration drains moisture after being used for neutralizing.The structure of plate-and-frame filter press is roughly many groups of sequentially overlapping and sheet frames that lean on of controlled transversal displacement that bridge on the rack rail, a filter chamber is respectively established in described sheet frame both sides, each both sides filter chamber is respectively equipped with a filter cloth that communicates with its mud entrance, with and the limber hole in a plurality of corners, for the sludge slurry pipeline and the sewer pipeline that are communicated with the external stability seat, make sludge slurry pipeline entrance be communicated in the take-off equipment outlet of dilution process device; Organize the outer phase of adjacent sheet frame and filter cloth thereof and by cooperating extrusion dehydration by each, drive again control respectively organize sheet frame one by one oppositely displacement separate, to unload solid substances.Because plate-and-frame filter press is technology as well known to those skilled in the art, therefore further do not give unnecessary details in detail for its structure at this, its accompanying drawing is not provided simultaneously.
The filtrate outlet 5 of pressure filter 11 is communicated to filtrate settling chamber 6.Owing to containing the PAT waste material that is squeezed out in the filtrate of pressure filter 11, therefore precipitate for filtrate by filtrate settling chamber 6, reclaim fluent meterial, and during solid matter sent back to and continue in the whipping appts to utilize.
Drying unit comprises the conveying belt 13 that extends to described pressure filter 11 discharge ports 12 belows and some calorifiers 14 of being located at described conveying belt 13 tops, described calorifier 14 outlets are towards the feed surface of described conveying belt 13, and the successively interval setting of length direction of prolonging conveying belt 13.Because pressure filter 11 can not thoroughly drain the moisture in the PAT waste material, therefore by taking such drying unit, the PAT waste material with pressure filter 11 outputs of streamlined progressively dries up.
In conjunction with the above detailed description that forms for system, the principle of work of native system is as follows:
In and whipping appts in, by adding alkaline matter at the PAT waste material, and stir, with in and the PAT waste material in acid solution, treat that neutralization is to unlikely when follow-up equipment is produced corrosion, be pumped to pressure filter 11 by waste outlet 4, the waste material press filtration drained moisture after pressure filter 11 will neutralize, and discharged afterwards scoriform PAT waste material.Scoriform PAT waste material drops on the conveying belt 13, is fed forward, and is transferred with the calorifier 14 on 13 and brushes to drying.The filtrate that pressure filter 11 is discharged is recycled in continuing to be sent to and in the whipping appts after precipitating by filtrate settling chamber 6 again.
Abovely be elaborated for invention intention of the present utility model and embodiment by a plurality of embodiment; but the utility model one of ordinary skill in the art be appreciated that; the above embodiment of the utility model only is one of preferred embodiment of the present utility model; be the length restriction; here can not all embodiments of particularize; any enforcement that can embody the utility model claim technical scheme is all in protection domain of the present utility model.
It should be noted that; above content is in conjunction with concrete embodiment further detailed description of the utility model; can not assert that embodiment of the present utility model only limits to this; under the guidance of above-described embodiment; those skilled in the art can carry out various improvement and distortion on the basis of above-described embodiment, and these improvement or distortion drop in the protection domain of the present utility model.
Claims (4)
1. the pretreatment system of a PTA waste material is characterized in that comprising:
In and whipping appts, have alkaline substance feedway, reaction chamber and be located at agitator in this reaction chamber, be provided with waste material import, waste outlet in the described reaction chamber, the outlet of described alkaline substance feedway accesses in the described reaction chamber;
Pressure filter, the waste material press filtration drains moisture after being used for neutralizing, and its opening for feed is communicated with described waste outlet;
Drying unit comprises the conveying belt that extends to described pressure filter discharge port below and some calorifiers of being located at described conveying belt top, and described calorifier outlet is towards the feed surface of described conveying belt, and the successively interval setting of length direction of prolonging conveying belt.
2. the pretreatment system of a kind of PTA waste material according to claim 1, it is characterized in that: described pretreatment system also comprises the filtrate settling chamber that is communicated with described pressure filter filtrate outlet.
3. the pretreatment system of a kind of PTA waste material according to claim 2 is characterized in that: the bottom of described filtrate settling chamber is communicated with described feed opening of press filter by the pipeline with pump.
4. the pretreatment system of a kind of PTA waste material according to claim 1, it is characterized in that: described pressure filter is plate-and-frame filter press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220617696 CN202898178U (en) | 2012-11-20 | 2012-11-20 | Pre-treatment system of PTA (Pure Terephthalic Acid) waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220617696 CN202898178U (en) | 2012-11-20 | 2012-11-20 | Pre-treatment system of PTA (Pure Terephthalic Acid) waste |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202898178U true CN202898178U (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220617696 Expired - Fee Related CN202898178U (en) | 2012-11-20 | 2012-11-20 | Pre-treatment system of PTA (Pure Terephthalic Acid) waste |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202898178U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103755110A (en) * | 2014-01-02 | 2014-04-30 | 芜湖华烨工业用布有限公司 | Three-section type conveying device for sludge treatment |
| CN115367912A (en) * | 2022-08-10 | 2022-11-22 | 广东玉兰集团股份有限公司 | Recovery treatment method and reuse of plasticizer-containing waste liquid |
-
2012
- 2012-11-20 CN CN 201220617696 patent/CN202898178U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103755110A (en) * | 2014-01-02 | 2014-04-30 | 芜湖华烨工业用布有限公司 | Three-section type conveying device for sludge treatment |
| CN115367912A (en) * | 2022-08-10 | 2022-11-22 | 广东玉兰集团股份有限公司 | Recovery treatment method and reuse of plasticizer-containing waste liquid |
| CN115367912B (en) * | 2022-08-10 | 2023-10-10 | 广东玉兰集团股份有限公司 | Recycling method and reuse method of plasticizer-containing waste liquid |
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