CN103692576B - Reclaim method and the system thereof of PTFE fiber and PPS in waste and old dust settling pocket - Google Patents
Reclaim method and the system thereof of PTFE fiber and PPS in waste and old dust settling pocket Download PDFInfo
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- CN103692576B CN103692576B CN201310696503.2A CN201310696503A CN103692576B CN 103692576 B CN103692576 B CN 103692576B CN 201310696503 A CN201310696503 A CN 201310696503A CN 103692576 B CN103692576 B CN 103692576B
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- dust settling
- settling pocket
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- 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
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
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- 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
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- Filtering Of Dispersed Particles In Gases (AREA)
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Abstract
The invention discloses a kind of method and system thereof that reclaims PTFE fiber and PPS in waste and old dust settling pocket, said method comprising the steps of: hot melt, at the temperature of 250 DEG C-260 DEG C, the waste and old dust settling pocket of hot melt until PPS melt completely; Fragmentation, by the most mixture of powder, fiber, block solid content of cooled block hot-melt object fragmentation; Screening, by the screening of mixture top sieve, PTFE fiber and PPS powdery reclaim, and block solid content returns to broken step. Beneficial effect of the present invention is: the difference by two kinds of melting point substances is carried out hot melt, then separates according to the difference of physical property, to accomplish the recycling of PTFE and PPS in waste and old dust settling pocket.
Description
Technical field
The present invention designs dust settling pocket and reclaims field, is specifically related to a kind of method and system thereof that reclaims PTFE fiber and PPS in waste and old dust settling pocket.
Background technology
PPS(polyphenylene sulfide) and PTFE(polytetrafluoroethylene (PTFE)) dust settling pocket is because of its favor that can obtain to micron order dust numerous industrial production producer up to 99.99% filterability, it is widely used in the industries such as iron and steel, cement, metallurgy and chemical industry. Meanwhile, PTFE material and PPS material unit price are all higher, cause this dust settling pocket also expensive. In order to reduce production costs, it is imperative that waste and old dust settling pocket is reclaimed, but in the exploitation of recovery technology, PTFE is difficult to process, and PTFE is commonly called as King, in the chloroazotic acid boiling, does not also change. Therefore, be limited by the too good chemical stability of PTFE, prior art wish reclaim and can not, waste and old dust settling pocket can only be stored.
Summary of the invention
In view of this, a kind of method and system thereof that reclaims PTFE fiber and PPS in waste and old dust settling pocket provided by the invention, to solve the above-mentioned deficiency of prior art.
For achieving the above object, the technical solution used in the present invention is:
A method that reclaims PTFE fiber and PPS in waste and old dust settling pocket, comprises the following steps:
101: hot melt, at the temperature of 250 DEG C-260 DEG C, the waste and old dust settling pocket of hot melt until PPS melt completely;
102: fragmentation, by the most mixture of powder, fiber, block solid content of cooled hot-melt object solid piece fragmentation;
103: screening, by the screening of mixture top sieve, PTFE fiber and PPS powdery reclaim, and block solid content returns to step 102. By fusing, pulverizing and screening, PTFE and PPS are separated.
Further, before step 101, described recovery method is further comprising the steps of:
201: collect, collect waste and old dust settling pocket and arrange;
202: clean, the dust settling pocket of collecting is cleaned;
203: dry, dust settling pocket after cleaning is dried to the weight to water content 5%() below;
204: cut apart, the dust settling pocket after drying is divided into rectangular or piece.
Clean and remove the dust adhering on dust settling pocket, after cutting apart, be more convenient to hot melt.
Further, in step 202, in cleaning process, cleaning fluid is vibrated. Make to clean more abundant.
Preferably, in step 204, dust settling pocket is divided into the rectangular or piece that length is 200-400mm. More be convenient to hot melt, the block after hot melt is convenient to pulverize more.
A recovery system of PTFE fiber and PPS in waste and old dust settling pocket, comprises to dust settling pocket heating and by the thermofusion device of PPS fusing, by the breaker of cooled block hot-melt object fragmentation, and the screening plant that powder, fiber and solid piece are separated.
Further, be also included as the cleaning device of dust settling pocket dedusting, the drying unit that the dust settling pocket after cleaning is dried, and the segmenting device that the dust settling pocket after drying is cut apart.
Further, the vibrating device that cleaning fluid is vibrated is installed on cleaning device.
Beneficial effect of the present invention is: the difference by two kinds of melting point substances is carried out hot melt, then separates according to the difference of physical property, to accomplish the recycling of PTFE and PPS in waste and old dust settling pocket.
Brief description of the drawings
Fig. 1 is the flow chart of recovery method of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme of the present invention is described, obviously, accompanying drawing is described is only a part of the present invention instead of whole embodiment.
As shown in Figure 1, a kind of method that reclaims PTFE fiber and PPS in waste and old dust settling pocket provided by the invention, comprises the following steps:
101: hot melt, at the temperature of 250 DEG C-260 DEG C, the waste and old dust settling pocket of hot melt until PPS melt completely;
102: fragmentation, by the most mixture of powder, fiber, block solid content of cooled hot-melt object solid piece fragmentation;
103: screening, by the screening of mixture top sieve, PTFE fiber and PPS powdery reclaim, and block solid content returns to step 102.
Under normal condition, the fusing point of PPS is 281 DEG C, and it is that now 250 DEG C-260 DEG C can be melted because discarding PPS performance in dust settling pocket after long-term use declines to some extent that the present invention gets 250 DEG C-260 DEG C. Therefore,, if in practical application be completely not discarded dust settling pocket, this temperature can suitably promote according to the usage degree of dust settling pocket. The fusing point of PTFE, more than 320 DEG C, therefore, not affects the said temperature of PPS fusing to PTFE.
After hot-melt object is cooling, dust settling pocket becomes the PPS solid piece of black, wherein contain PTFE fiber, the PPS solid piece that contains PTFE fiber is carried out to fragmentation, here, according to varying in size of solid piece, if aforementioned cooled solid is block-shaped larger, first machinery impacts to fritter and carries out crusher in crushing again, if size is less, and can be directly broken. Solid piece is crushed to the mixture of powder, fiber, block solid content. In pure theory, be crushed to powder and fibre blend is best, but so broken overlong time in practical operation, and working (machining) efficiency is too low. In application, the ratio of powder and fiber and block solid content is much broken EPs (end of program) actually, can determine according to the working ability of working (machining) efficiency and next procedure screening machine.
By the mixture top sieve of above-mentioned powder, fiber and block solid content, the rotary screen that preferably screen drum tilts, at this moment, powder sieves from mesh, and block fixture directly tumbles to coarse fodder outlet, and fiber can stick to the surface of rotary screen, artificially collects. The inconvenience of use is like this, and rotary screen can not be processed continuously, and after a period of time, fiber can cover mesh completely. As further improving, can use vibratory sieve, inventor in use finds, by the upper vibration hammer of reasonable adjusting vibratory sieve and the angle of lower vibration hammer, can be on existing vibratory sieve basis, realize fines, coarse fodder sifts out respectively, and fiber material gathers and screen cloth center, adding an extractor fan can take away, separates thorough and convenient for production. Finally, powder and fiber recovery, the coarse fodder of collection returns to broken process.
As further supplementing, before hot melt, can carry out pretreatment to dust settling pocket, comprise the following steps:
201: collect, collect waste and old dust settling pocket and arrange;
202: clean, the dust settling pocket of collecting is cleaned;
203: dry, dust settling pocket after cleaning is dried to the weight to water content 5%() below;
204: cut apart, the dust settling pocket after drying is divided into rectangular.
The object of above-mentioned cleaning is to remove the dust adhering on dust settling pocket, uses distilled water to clean. The object of cutting apart is that bar is convenient to hot melt more, wherein, more abundant in order to clean when cleaning, can shake cleaning fluid.
The recovery system of PTFE fiber and PPS in a kind of waste and old dust settling pocket provided by the invention, comprise to dust settling pocket heating and by the thermofusion device of PPS fusing, by the breaker of cooled block hot-melt object fragmentation, and the screening plant that powder, fiber and solid piece are separated. The vibrating device that cleaning fluid is vibrated is installed on cleaning device.
The description of technique scheme has only embodied the preferred technical solution of the present invention, and is not exhaustively, or limit the invention to disclosed form. Based on embodiments of the invention, the other forms of technical scheme that anyone obtains under the prerequisite of not making creative work, though its in structure or make in form which kind of change, within all belonging to protection scope of the present invention.
Claims (7)
1. a method of PTFE fiber and PPS in the waste and old dust settling pocket of recovery, is characterized in that bagDraw together following steps:
101: hot melt, at the temperature of 250 DEG C-260 DEG C, the waste and old dust settling pocket of hot melt is until PPS is completeRunning down;
102: fragmentation, by most powder, fiber, block solid of cooled hot-melt object solid piece fragmentationThe mixture of shape thing;
103: screening, by the screening of mixture top sieve, PTFE fiber and PPS powdery reclaim, block solidShape thing returns to step 102.
2. the method for PTFE fiber and PPS in the waste and old dust settling pocket of recovery according to claim 1,It is characterized in that, before step 101, the side of PTFE fiber and PPS in the waste and old dust settling pocket of described recoveryMethod is further comprising the steps of:
201: collect, collect waste and old dust settling pocket and arrange;
202: clean, the dust settling pocket of collecting is cleaned;
203: dry, dust settling pocket after cleaning is dried to water content 5% (weight);
204: cut apart, the dust settling pocket after drying is divided into rectangular or piece.
3. the method for PTFE fiber and PPS in the waste and old dust settling pocket of recovery according to claim 2,It is characterized in that, in step 202, in cleaning process, cleaning fluid is vibrated.
4. the method for PTFE fiber and PPS in the waste and old dust settling pocket of recovery according to claim 2,It is characterized in that, in step 204, dust settling pocket is divided into the rectangular or piece that length is 200-400mm.
5. a system of PTFE fiber and PPS in the waste and old dust settling pocket of recovery, is characterized in that bagDraw together to dust settling pocket heating and by the thermofusion device of PPS fusing, by cooled block hot-melt object fragmentationBreaker, and the screening plant that powder, fiber and solid piece are separated.
6. the system of PTFE fiber and PPS in the waste and old dust settling pocket of recovery according to claim 5,It is characterized in that, be also included as the cleaning device of dust settling pocket dedusting, the dust settling pocket after cleaning is driedDrying unit, and the segmenting device that the dust settling pocket after drying is cut apart.
7. the system of PTFE fiber and PPS in the waste and old dust settling pocket of recovery according to claim 6,It is characterized in that, the vibrating device that cleaning fluid is vibrated is installed on cleaning device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310696503.2A CN103692576B (en) | 2013-04-03 | 2013-12-18 | Reclaim method and the system thereof of PTFE fiber and PPS in waste and old dust settling pocket |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310113761.3 | 2013-04-03 | ||
| CN2013101137613 | 2013-04-03 | ||
| CN2013101137613A CN103144221A (en) | 2013-04-03 | 2013-04-03 | Method and system of recovering PPS (polyphenylene sulfide) in waste dust removal bag |
| CN201310696503.2A CN103692576B (en) | 2013-04-03 | 2013-12-18 | Reclaim method and the system thereof of PTFE fiber and PPS in waste and old dust settling pocket |
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| Publication Number | Publication Date |
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| CN103692576A CN103692576A (en) | 2014-04-02 |
| CN103692576B true CN103692576B (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101137613A Pending CN103144221A (en) | 2013-04-03 | 2013-04-03 | Method and system of recovering PPS (polyphenylene sulfide) in waste dust removal bag |
| CN201310696503.2A Active CN103692576B (en) | 2013-04-03 | 2013-12-18 | Reclaim method and the system thereof of PTFE fiber and PPS in waste and old dust settling pocket |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013101137613A Pending CN103144221A (en) | 2013-04-03 | 2013-04-03 | Method and system of recovering PPS (polyphenylene sulfide) in waste dust removal bag |
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| CN (2) | CN103144221A (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104353658B (en) * | 2014-11-05 | 2016-05-04 | 湖州格尔泰斯环保技术有限公司 | The recoverying and utilizing method of waste and old PTFE dedusting filtering bag |
| CN104530704B (en) * | 2014-12-05 | 2017-04-12 | 中国纺织科学研究院 | Recycling method for waste PPS dedusting filter bag |
| CN105397935A (en) * | 2015-11-30 | 2016-03-16 | 安徽省元琛环保科技有限公司 | Method for separating waste polyphenylene sulfide from polytetrafluoroethylene blended dust removal bag |
| CN105751403A (en) * | 2015-12-14 | 2016-07-13 | 安徽省元琛环保科技有限公司 | Method of recycling polyphenylene sulfide and PTFE waste filter materials |
| CN105538544B (en) * | 2015-12-31 | 2017-12-12 | 安徽元琛环保科技股份有限公司 | A kind of separation method of waste and old polyphenylene sulfide and polytetrafluoroethylene (PTFE) blending dust settling pocket |
| CN105666740B (en) * | 2016-03-01 | 2017-10-31 | 浙江理工大学 | A kind of cleaning and recovery method of waste and old polytetrafluoroethylene (PTFE) and polyphenylene sulfide blending filter bag |
| CN107738382B (en) * | 2017-12-04 | 2019-09-27 | 广东石油化工学院 | A kind of separation method of waste and old braiding fibrous material |
| CN107746222B (en) * | 2018-01-24 | 2020-05-12 | 华电电力科学研究院有限公司 | Recycling method of dust removal filter bag of coal-fired power plant |
| CN108642240B (en) * | 2018-05-18 | 2020-01-14 | 武汉钢铁有限公司 | Molten iron heat-preservation covering agent prepared from waste dust-removal cloth bags and preparation method |
| CN111136832A (en) * | 2019-12-04 | 2020-05-12 | 中国纺织科学研究院有限公司 | Method and system for separating waste dust-removing filter bags containing PPS and PTFE |
| CN114770805A (en) * | 2022-03-01 | 2022-07-22 | 徐州市宝盛新田农业机械有限公司 | Agricultural plastic products waste recovery device |
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| CN1103874A (en) * | 1993-12-17 | 1995-06-21 | 化学工业部成都有机硅应用研究技术服务中心 | Recovering waste foam polystyrene by gel foam remoing method and regenerating foamable polystyrene |
| CN102416675A (en) * | 2011-10-26 | 2012-04-18 | 合肥工业大学 | Industrializable waste thermosetting plastic regeneration process and equipment based on mechanical and physical method |
| CN102553350A (en) * | 2011-12-22 | 2012-07-11 | 安徽省绩溪县华林玻璃纤维有限公司 | Filtering material for high-temperature dust removal |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060096525A1 (en) * | 2004-11-08 | 2006-05-11 | Sirkar Kamalesh K | Solid hollow fiber cooling crystallization systems and methods |
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- 2013-04-03 CN CN2013101137613A patent/CN103144221A/en active Pending
- 2013-12-18 CN CN201310696503.2A patent/CN103692576B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1103874A (en) * | 1993-12-17 | 1995-06-21 | 化学工业部成都有机硅应用研究技术服务中心 | Recovering waste foam polystyrene by gel foam remoing method and regenerating foamable polystyrene |
| CN102416675A (en) * | 2011-10-26 | 2012-04-18 | 合肥工业大学 | Industrializable waste thermosetting plastic regeneration process and equipment based on mechanical and physical method |
| CN102553350A (en) * | 2011-12-22 | 2012-07-11 | 安徽省绩溪县华林玻璃纤维有限公司 | Filtering material for high-temperature dust removal |
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| Publication number | Publication date |
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| CN103692576A (en) | 2014-04-02 |
| CN103144221A (en) | 2013-06-12 |
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Effective date of registration: 20140416 Address after: 100005, three, 908, 909, Henderson central building, No. 18, Jianguomen inner Avenue, Beijing, Dongcheng District Applicant after: Beijing Guoxing Wujia Polymer Fiber Regeneration Technology Co., Ltd. Applicant after: BEIJING GUOFA JIAMEI ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD. Address before: 100005, three, 908, 909, Henderson central building, No. 18, Jianguomen inner Avenue, Beijing, Dongcheng District Applicant before: Beijing Guoxing Wujia Polymer Fiber Regeneration Technology Co., Ltd. |
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Effective date of registration: 20160719 Address after: 100005, Beijing, Beiqijia town of Changping District Tuan Tuan Village Patentee after: Shanchun Xiumei Ecological Environmental Engineering Co., Ltd. Address before: 100005, three, 908, 909, Henderson central building, No. 18, Jianguomen inner Avenue, Beijing, Dongcheng District Patentee before: Beijing Guoxing Wujia Polymer Fiber Regeneration Technology Co., Ltd. Patentee before: BEIJING GUOFA JIAMEI ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD. |