CN102796550B - Cracking furnace for tire - Google Patents
Cracking furnace for tire Download PDFInfo
- Publication number
- CN102796550B CN102796550B CN201210206913.XA CN201210206913A CN102796550B CN 102796550 B CN102796550 B CN 102796550B CN 201210206913 A CN201210206913 A CN 201210206913A CN 102796550 B CN102796550 B CN 102796550B
- Authority
- CN
- China
- Prior art keywords
- cracking furnace
- tire
- dividing plate
- tire cracking
- spherical tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000005336 cracking Methods 0.000 title claims abstract description 29
- 238000012546 transfer Methods 0.000 claims abstract description 15
- 239000000470 constituent Substances 0.000 claims description 6
- 239000002737 fuel gas Substances 0.000 claims description 5
- 238000009423 ventilation Methods 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 238000000354 decomposition reaction Methods 0.000 abstract description 7
- 239000000446 fuel Substances 0.000 abstract description 6
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract 5
- 239000007789 gas Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 239000010419 fine particle Substances 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 239000011362 coarse particle Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 1
- 208000009714 Severe Dengue Diseases 0.000 description 1
- 208000036142 Viral infection Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- -1 tire Substances 0.000 description 1
- 239000004636 vulcanized rubber Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
- Y02P20/143—Feedstock the feedstock being recycled material, e.g. plastics
Abstract
The invention discloses a cracking furnace for a tire. The cracking furnace for the tire comprises a cracking furnace body, a connection tube, a spherical tank, and a separation tower; the connection tube is connected with the cracking furnace body and the spherical tank; a spiral separation plate is arranged in the spherical tank, and the bottom of the spherical tank is provided with a discharge port which is connected with the cracking furnace body; the separation tower is arranged on the top of the spherical tank; a condenser is arranged on the top in the separation tower; a distributor is arranged underneath the condenser; and the condenser is provided with a separation port which is connected with external transfer tanks. The cracking furnace for the tire has the advantages of high decomposition degree, high product quality, low fuel consumption, low environmental pollution and the like.
Description
Technical field
The present invention relates to a kind of pyrolyzer, relate to particularly a kind of pyrolyzer that can be used for the waste and old raw material such as tire, plastics.
Background technology
Due to the prosperity of economic prosperity drive locomotive industry, whole world Motor vehicles number increases rapidly, approximately have every year 2000000000 to 3,000,000,000 damaged tires to produce, and China does not also produce the junked tire of several hundred million every year.Junked tire is mainly by vulcanized rubber synthesized, and its character is highly stable, can in physical environment, continue more than 100 years and unlikely addling.In addition, the elasticity of junked tire is good, toughness is strong, cannot be with mechanical force compacting, and therefore occupy a large amount of space, traditional landfill site and cause landfill site shortening working life, therefore be not suitable for burying together with general waste.If arbitrarily bank up and meet rain ponding, likely cause the generation of singapore hemorrhagic fever disease.Except taking up space, junked tire contains high heating value, stores accidentally very easily catching fire if pile up, and not only produces virose dioxin gas and causes atmospheric pollution, the molten oil, the slag that produce also can permeate the ground and cause the pollution of soil and underground water, have a strong impact on environment and quality of life.Therefore,, if junked tire problem cannot be dealt carefully with, serious problem of environmental pollution will be caused.
At present the treatment process of junked tire is had: one, recycling: by damaged tire renovation, and tire grinds into fine glue powder etc.Two, rubber for tire is cracked into the product such as combustible gas and liquid oil, carbon black.But, in existing pyrolyzer design, conventionally exist cracking insufficient, the quality product after cracking is low, and in cracking process, gas entrainment impurity is many, often causes line clogging, causes the defects such as security incident.
Summary of the invention
The object of the present invention is to provide a kind of tire cracking furnace, to solve the above-mentioned problems in the prior art.
Technical scheme provided by the invention is as follows:
A kind of tire cracking furnace, is characterized in that, comprising:
One pyrolyzer body;
One pipe connecting, it connects pyrolyzer body and spherical tank;
One spherical tank, its inside is provided with a volution spacer plate, and bottom is provided with a discharge outlet, and this discharge outlet is connected with pyrolyzer body; And
One is located at the knockout tower at spherical tank top, described knockout tower inner top is provided with a condenser, condenser below is provided with one for condensed fluid being turned back to spherical tank or being discharged into outside sparger, and described sparger is provided with a separating opening, and this separating opening connects outside transfer tank.
In preferred embodiment of the present invention, described pyrolyzer body is built-in spiral plate type.
In preferred embodiment of the present invention, this pipe connecting comprises vertical section and a tilting section, wherein, vertically in section, is alternately intervally distributed with a plurality of spoilers at this.Its quantity arranges as required.As 5-8.
In preferred embodiment of the present invention, described transfer tank comprises a heavy constituent transfer tank and a light constituent transfer tank.
In preferred embodiment of the present invention, the air outlet on described knockout tower top is connected to one group of cupping jar, and then is connected to the fuel gas inlet of pyrolyzer body bottom.This group cupping jar is for storing and transfer inflammable gas.
In preferred embodiment of the present invention, the lower end internal interval of this knockout tower is alternately provided with plural piece baffle plate.
In preferred embodiment of the present invention, described sparger comprises the lower intercepting basin traversing in knockout tower inner chamber, and this intercepting basin is provided with at least one bar shaped air channel, and a dividing plate is established on each air channel both sides, and the epimere of dividing plate is provided with ventilating pit; The inner side of each dividing plate is provided with at least one conduit, and each conduit and dividing plate outside are provided with at least one pod apertures; Intercepting basin is established at the dividing plate top of each air channel, and upper intercepting basin is connected with two dividing plate tops of air channel, and ensures enough ventilation spaces; A distance above apart from base plate, is provided with a separating opening, and described separating opening position is lower than pod apertures.
The cross section of described conduit is semicircle or square or trilateral.
The cross section of upper intercepting basin is V-arrangement.
Advantage of the present invention is as follows:
1, junked tire decomposes, produces cracked gas and undecomposed particle completely, and moves upward along pipe connecting.Under the baffle effect arranging in alternate intervals, most macrobeads are kept off down by baffle plate, and come back to decomposition again in burner hearth.All the other continue to enter in spherical tank.Because the volume ratio pipeline of spherical tank is much larger, gas slows down suddenly in this speed, relends the barrier effect that helps volution separator, air-flow is rising twist, in this process, most fine particles and coarse particles are all precipitated to get off, and deposits in the bottom of spherical tank.Get back to pyrolyzer main body from bottom again.Therefore, the present invention decomposes completely, can avoid pipeline of the prior art easily blocked, and decomposes incomplete drawback.
2, be provided with sparger, can allow phlegma come back in spherical tank, and then return cracking again in burner hearth, or be discharged on transfer tank, make the phlegma can be according to the cracking that needs of cracking degree.The gas of cracking can become heavy constituent and light constituent is collected.
3, the inflammable gas after decomposition, can enter group cupping jar by the outlet at knockout tower top, returns the base burning of pyrolyzer main body.After trouble-free burning, the present invention is even without adding in addition fuel, and the gas that only needs tire to decompose can maintain normal operation.Therefore, reduced the pollution to environment.
Thereby the present invention has that degree of decomposition is high, good product quality and fuel consumption little, the advantage such as environmental pollution is little.
Brief description of the drawings
Fig. 1 is the structural representation of tire cracking furnace of the present invention;
Fig. 2 is the structural representation of the knockout tower part of tire cracking furnace of the present invention;
Fig. 3 is the local structure schematic diagram of sparger.
1 pyrolyzer main body
11 fuel inlet 12 fuel gas inlet 13 built-in screw type scraper plates
2 pipe connectings
21 vertical section 22 tilting section 23 baffle plates
3 spherical tanks
31 entrance 32 discharge outlets 33 detect mouthful 34 volution spherical separators
4 knockout towers
41 baffle plate 42 fillers
The upper intercepting basin 43-5 pod apertures of intercepting basin 43-2 dividing plate 43-3 separating opening 43-4 under 43 sparger 43-1
43-6 conduit 43-7 internal space 43-8 dividing plate epimere
44 condenser 45 pneumatic outlet 46 evacuation ports
5 transfer tanks
6 transfer tanks
Embodiment
Specific embodiments of the invention, with reference to Fig. 1, a kind of tire cracking furnace, is mainly made up of pyrolyzer main body 1, pipe connecting 2, spherical tank 3 and knockout tower 4 etc.
This pyrolyzer main body 1 is built-in helical flight formula (is prior art, also can adopts other pyrolyzer of the prior art), and it comprises fixing urceolus and a rotatable built-in screw type scraper plate 13.Its bottom is provided with a fuel inlet 11 and a fuel gas inlet 12.This pyrolyzer is prior art, and this part non-emphasis of the present invention, therefore do not repeat.
The top of this pyrolyzer main body 1 connects a pipe connecting 2, and this pipe connecting comprises vertical section 21 and a tilting section 22, wherein, vertically in section 21, is alternately intervally distributed with some baffle plates 23 at this.The quantity of this baffle plate can arrange as required, for example 5-8 piece.The entrance 31 of the other end of this tilting section 22 and spherical tank 3 is connected.
The bottom of this spherical tank 3 is provided with a discharge outlet 32, and this discharge outlet 32 is connected with pyrolyzer main body 1 by a pipeline.The inside of this spherical tank is provided with a volution spherical separator 34, and right side is provided with a detection mouth 33, and a knockout tower 4 is established at top.
Referring to Fig. 2, the lower end internal interval of this knockout tower 4 is alternately provided with some baffle plates 41, and the quantity of this baffle plate can arrange as required, for example 3-5 piece.Baffle plate top is provided with filler 42, and top interior is provided with condenser 44, between the top of condenser 44 belows, filler 42, is provided with a sparger 43.The top of knockout tower 4 is provided with pneumatic outlet 45, and it is connected to the fuel gas inlet 12 of pyrolyzer main body 1 through group cupping jar 7 by pipeline.
The concrete structure of this sparger 43 is as follows: it comprises the lower intercepting basin 43-1 traversing in knockout tower inner chamber, on this intercepting basin 43-1, be interval with some bar shaped air channels, each air channel both sides of the edge are along its length respectively equipped with a bar shaped dividing plate 43-2, the top of two dividing plate upper end 43-2 of each air channel is connected to become as upper intercepting basin 43-4, in the present invention, on this, the cross section of intercepting basin is V-arrangement.Dividing plate epimere 43-8 is provided with a plurality of ventilating pit (not shown)
Dividing plate medial surface is provided with some thrust-augmenting nozzle 43-6 that are vertically arranged in parallel, the spacing 2-10 centimetre of thrust-augmenting nozzle; Outside thrust-augmenting nozzle 43-6 and dividing plate, upper and lower each pod apertures 43-5(that makes a call to also can beat several more), pod apertures interval 1-5 centimetre.Upper intercepting basin 43-4 is connected with the dividing plate top on each air channel both sides, has enough ventilation space 43-7 between dividing plate, and separating opening 43-3 is connected on two transfer tanks 5 and 6 by pipeline.The position of this separating opening is higher than the upper end 3-10 centimeters lateral opening of lower intercepting basin, and position is lower than pod apertures 43-5.
Use procedure of the present invention is as follows: junked tire is put into pyrolyzer main body 1, heating, and tire decomposes, produces cracked gas and undecomposed particle completely, and moves upward along pipe connecting 2.Under baffle plate 23 effects that arrange in alternate intervals, most macrobeads are kept off down by baffle plate 23, and come back to decomposition again in burner hearth.All the other continue to enter in spherical tank 2.
Because the volume ratio pipeline of spherical tank 2 is much larger, gas slows down suddenly in this speed, relends the barrier effect that helps volution separator, air-flow is rising twist, in this process, most fine particles and coarse particles are all precipitated to get off, and deposits in the bottom of spherical tank 2.
Gas continues to rise, and enters knockout tower 4, and the baffle plate 41 in knockout tower 4 further precipitates unsegregated fine particle to get back in spherical tank 2.Liquid under air-flow enters packing area 42 and refluxes carries out sufficient heat exchange and carries out rectifying, go deimpurity clean gas to continue to rise through filler 42, from the ventilation space 43-7 of sparger 43, pass, and flow out from the ventilating pit of dividing plate epimere 43-8, continue to rise, running into the rear condensation of condenser 44 becomes liquid, drops onto catch tray 43-4 upper, is then slipped on the catch tray 43-1 of lower end.The fluid accumulation of base plate 43-1, after certain altitude, automatically enters thrust-augmenting nozzle 43-6 from the pod apertures 43-5 of dividing plate, then is distributed to uniformly packing section, carries out heat exchange get back in pyrolyzer 1 with splitting gas below.
As product is qualified after testing, can open the valve of separating opening 43-3, because separating opening position is lower than pod apertures position, the liquid of lower catch tray flow out from separating opening 43-3, is placed in transfer tank 5 or 6.
In decomposition course, in particle, first macrobead part is stopped that by baffle plate 23 precipitation, small-particle precipitate in spherical tank 2, and can be got back in pyrolyzer main body 1 and be continued to decompose by the discharge outlet of bottom 32.
Inflammable gas after decomposition, can get back to the base burning of pyrolyzer main body 1 by the outlet 45 at knockout tower 4 tops.After trouble-free burning, the present invention is even without other fuel, and the gas that only needs tire to decompose can run well.
Above are only a specific embodiment of the present invention, but design concept of the present invention is not limited to this, allly utilizes this design to carry out the change of unsubstantiality to the present invention, all should belong to the behavior of invading protection domain of the present invention.
Claims (9)
1. a tire cracking furnace, is characterized in that, comprising:
One pyrolyzer body;
One pipe connecting, it connects pyrolyzer body and spherical tank;
One spherical tank, its inside is provided with a volution spacer plate, and bottom is provided with a discharge outlet, and this discharge outlet is connected with pyrolyzer body; And
One is located at the knockout tower at spherical tank top, and described knockout tower inner top is provided with a condenser, and condenser below is provided with one for condensed fluid being turned back to spherical tank or being discharged into outside sparger; Described sparger is provided with a separating opening, and this separating opening connects outside transfer tank.
2. a kind of tire cracking furnace as claimed in claim 1, is characterized in that: described pyrolyzer is built-in spiral plate type.
3. a kind of tire cracking furnace as claimed in claim 1, is characterized in that: described pipe connecting comprises vertical section and a tilting section, wherein, vertically in section, is alternately intervally distributed with a plurality of baffle plates at this.
4. a kind of tire cracking furnace as claimed in claim 1, is characterized in that: described transfer tank comprises a heavy constituent transfer tank and a light constituent transfer tank.
5. a kind of tire cracking furnace as claimed in claim 1, is characterized in that: the air outlet on described knockout tower top is connected to one group of cupping jar, and then is connected to the fuel gas inlet of pyrolyzer body bottom.
6. a kind of tire cracking furnace as claimed in claim 1, is characterized in that: the lower end internal interval of this knockout tower is alternately provided with plural piece baffle plate.
7. a kind of tire cracking furnace as claimed in claim 1, it is characterized in that: described sparger comprises the lower intercepting basin traversing in knockout tower inner chamber, this intercepting basin is provided with at least one bar shaped air channel, and a dividing plate is established on each air channel both sides, and the epimere of dividing plate is provided with ventilating pit; The inner side of each dividing plate is provided with at least one conduit, and each conduit and dividing plate outside are provided with at least one pod apertures; Intercepting basin is established at the dividing plate top of each air channel, and upper intercepting basin is connected with two dividing plate tops of air channel, and ensures enough ventilation spaces; A distance above apart from base plate, is provided with a separating opening, and described separating opening position is lower than pod apertures.
8. a kind of tire cracking furnace as claimed in claim 7, is characterized in that: the cross section of described conduit is semicircle or square or trilateral.
9. a kind of tire cracking furnace as claimed in claim 7, is characterized in that: the cross section of upper intercepting basin is V-arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210206913.XA CN102796550B (en) | 2012-06-20 | 2012-06-20 | Cracking furnace for tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210206913.XA CN102796550B (en) | 2012-06-20 | 2012-06-20 | Cracking furnace for tire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102796550A CN102796550A (en) | 2012-11-28 |
| CN102796550B true CN102796550B (en) | 2014-06-04 |
Family
ID=47195861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210206913.XA Expired - Fee Related CN102796550B (en) | 2012-06-20 | 2012-06-20 | Cracking furnace for tire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102796550B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104789254B (en) * | 2015-03-25 | 2016-04-13 | 洛阳瑞泽石化工程有限公司 | A kind of junked tire micelle cracking apparatus and cracking technology thereof |
| CN110793377B (en) * | 2019-12-04 | 2021-10-08 | 山东华凯特化工技术装备有限公司 | Anti-blocking condenser for bioreactor |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1074447C (en) * | 1999-06-08 | 2001-11-07 | 周鼎力 | Process and equipment for producing gasoline and diesel oil with waste plastics and/or heavy oil |
| CN101343549A (en) * | 2007-07-11 | 2009-01-14 | 山东西迪艾万达新能源有限公司 | Continuous oiling cracking technique and equipment for scrap tire |
| CN201161996Y (en) * | 2008-02-20 | 2008-12-10 | 韩丽 | Environment friendly slag withdrawal equipment on horizontal rotating plastic, rubber oil refining apparatus |
| CN101307151B (en) * | 2008-03-21 | 2013-04-10 | 北京天海元科技有限公司 | Apparatus for treating waste and old tyres |
| CN101560000B (en) * | 2009-06-03 | 2011-05-04 | 中国科学院兰州化学物理研究所 | Anti-destabilization flocculent precipitation reversed separating jar |
| JP2012012459A (en) * | 2010-06-30 | 2012-01-19 | Nk Corporation:Kk | Treatment apparatus for waste and method for treating waste |
| CN202610186U (en) * | 2012-06-20 | 2012-12-19 | 种传学 | Cracking furnace of tyre |
-
2012
- 2012-06-20 CN CN201210206913.XA patent/CN102796550B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN102796550A (en) | 2012-11-28 |
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Owner name: HENAN YATAI ENERGY TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: HAINAN XINGHUO BIOLOGICAL ENERGY CO., LTD. Effective date: 20140630 |
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Effective date of registration: 20140630 Address after: 450000 Henan Province, Zhengzhou City Traffic Road 27 Hengye District No. 41 hospital Patentee after: Seed propagation Patentee after: HENAN ASIA-PACIFIC ENERGY TECHNOLOGY CO.,LTD. Address before: 450000 Henan Province, Zhengzhou City Traffic Road 27 Hengye District No. 41 hospital Patentee before: Seed propagation Patentee before: Henan Xinghuo Biological Energy Co.,Ltd. |
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Owner name: HENAN YATAI ENERGY TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ZHONG CHUANXUE Effective date: 20141028 Free format text: FORMER OWNER: HENAN YATAI ENERGY TECHNOLOGY CO., LTD. Effective date: 20141028 |
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| CP01 | Change in the name or title of a patent holder |
Address after: 450000 Henan Province, Zhengzhou City Traffic Road 27 Hengye District No. 41 hospital Patentee after: Seed propagation Patentee after: HENAN ASIA-PACIFIC ENERGY TECHNOLOGY Corp. Address before: 450000 Henan Province, Zhengzhou City Traffic Road 27 Hengye District No. 41 hospital Patentee before: Seed propagation Patentee before: HENAN ASIA-PACIFIC ENERGY TECHNOLOGY CO.,LTD. |
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Effective date of registration: 20141028 Address after: 476000 Henan Province, Shangqiu City Development Zone's Permanent Road South (Shangbo high-speed entrance 100 meters West) Patentee after: HENAN ASIA-PACIFIC ENERGY TECHNOLOGY Corp. Address before: 450000 Henan Province, Zhengzhou City Traffic Road 27 Hengye District No. 41 hospital Patentee before: Seed propagation Patentee before: HENAN ASIA-PACIFIC ENERGY TECHNOLOGY Corp. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 Termination date: 20170620 |