CN101082066A - Technical method for spraying waste plastics particle into blast furnace and production facility - Google Patents
Technical method for spraying waste plastics particle into blast furnace and production facility Download PDFInfo
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- CN101082066A CN101082066A CNA2007100433811A CN200710043381A CN101082066A CN 101082066 A CN101082066 A CN 101082066A CN A2007100433811 A CNA2007100433811 A CN A2007100433811A CN 200710043381 A CN200710043381 A CN 200710043381A CN 101082066 A CN101082066 A CN 101082066A
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Abstract
The present invention is technological process and apparatus for spraying waste plastic pellet into blast furnace. The technological process includes the following steps: pre-treating waste plastic product, pelletizing, and spraying waste plastic pellet into blast furnace by using spiral bins to pressurize and fluidize waste plastic pellet with compressed air. The apparatus includes a waste plastic feeder, a crusher, a hot melting and pelletizing machine, and a spraying unit with air replenisher and distributor. The present invention can utilize waste plastic in blast furnace iron smelting successfully to save energy source.
Description
Technical field
The invention belongs to metallurgical manufacturing field, particularly a kind ofly in blast furnace ironmaking, winding-up behind the waste plastics particle is entered processing method and production unit thereof in the blast furnace.
Background technology
Plastics are one of the world today's four big base mateirals, and along with the surge of plastics output, plastic refuse also constantly increases.The depleted plastics have produced direct negative impact to environment protection, have caused harm, and it is the third-largest public hazards after topsoil, water pollute, and is referred to as by people " white pollution ".Therefore, it is not only significant aspect the minimizing environmental pollution to recycle plastic waste, and all has very big economic benefit and social benefit from aspects such as resource recovery, energy utilization.
Make the field at metallurgy,, also, should develop and study the blast furnace blowing plastics technology that technics of reclaim of plastic waste is utilized in order to make the target development of waste or used plastics to innoxious, resource utilization, minimizing for save energy.
Summary of the invention
Task of the present invention provides and a kind of waste plastics particle is sprayed into the processing method and the production unit thereof of blast furnace, and it has solved reclaiming and utilizing waste plastics and to the problem of Injecting Plastic Scrap into BF.
Technical solution of the present invention is as follows:
1. one kind sprays into the processing method and the production unit thereof of blast furnace with waste plastics particle, and its processing method is carried out as follows:
A. waste plastic product pre-treatment: the waste or used plastics goods of collecting are carried out decontamination clean, dry, remove the impurity that is mixed in wherein then, especially be hard impurity nonflammable and that granulate, classify by different varieties, and carry out classification by proportion differential 0.5, need carry out detoxification treatment for chloride poisonous impurity;
B. waste plastic product is granulated: with the chopping of the waste plastic product after the classification, its fragment size≤30mm granulates with the hot melt nodulizer, makes the particle of granularity≤10mm;
C. plastic waste grain winding-up: with the plastic waste particle by the plastic pellet storehouse storehouse breechblock of packing into, the storehouse breechblock adopts pressurized with compressed air and fluidisation, each storehouse breechblock all carries out alternately by the program loop of charging, pressurization, standby, winding-up, pressure release, charging again, carry gas that plastic pellet is responsible for along winding-up and be transported to divider, air compensation device on winding-up is responsible for then is used for replenishing carries gas with control plastic pellet concentration, and plastic pellet is sprayed into blast furnace through the winding-up pipe then;
Its production unit flow process is as follows:
The plastic waste particle feeding machine (1) of packing into is delivered to crusher (2) fragmentation; being transported to hot melt nodulizer (3) by conveying belt again granulates; plastic pellet after the granulation falls into sieve (4); the meticulous particle of granularity returns hot melt nodulizer (3) and granulates again; the particle that meets size classification is delivered to plastic pellet storehouse (6) by feeding conveyer belt (5); plastic pellet falls into storehouse breechblock (7) by gravity; plastic pellet is delivered to winding-up by storehouse internal pressure and screw feeder and is responsible in (10); winding-up is responsible for (10) and is provided with air compensation device (9); plastic pellet is under the conveying of pressurized air or other source of the gas (8); be responsible for (10) through winding-up; air compensation device (9) and divider (11) enter blast furnace (16) through winding-up arm (12) and plastic spraying gum (15) again.
By of the present invention waste plastics particle is sprayed into the processing method of blast furnace, adopt relevant production unit, just can in the blast furnace ironmaking process, successfully recycle waste or used plastics, and enter in the blast furnace, saved the energy thus jetting behind the waste plastics particle.
Description of drawings
Accompanying drawing is a kind of synoptic diagram that waste plastics particle is sprayed into the processing method and the production unit flow process thereof of blast furnace of the present invention.
Embodiment
Referring to accompanying drawing, the present invention a kind ofly sprays into the processing method and the production unit thereof of blast furnace with waste plastics particle, and its processing method is carried out as follows:
1, waste plastic product pre-treatment:
The waste or used plastics goods of collecting being carried out decontamination clean, dry, remove the impurity that is mixed in wherein then, especially is hard impurity nonflammable and that granulate, classifies by different varieties, and carries out classification by proportion differential 0.5.Need carry out dechlorination for chloride poisonous impurity handles.
2, waste plastic product is granulated:
With the chopping of the waste plastic product after the classification, its fragment size≤30mm.With the packaged hopper of going into above the hot melt nodulizer of these plastic waste, through quantitatively cutting out, enter the hot melt nodulizer and granulate, make the particle of granularity≤10mm.The temperature requirement of hot melt nodulizer can be determined according to the characteristic of plastic waste.
3, plastic waste grain winding-up:
By the plastic pellet storehouse storehouse breechblock of packing into, bottom, plastic pellet storehouse links to each other with the storehouse breechblock with the plastic waste particle, and plastic pellet falls into the storehouse breechblock by gravity.The storehouse breechblock adopts pressurized with compressed air and fluidisation, and each storehouse breechblock all carries out alternately by the program loop of charging, pressurization, standby, winding-up, pressure release, charging again.The storehouse breechblock is the storehouse breechblock of two alternately operatings, and when a storehouse breechblock was jetted, another storehouse breechblock was in charging and waiting status, to implement continuous winding-up.
Carry gas that plastic pellet is responsible for along winding-up and be transported to divider.The air compensation device of jetting on being responsible for then is used for replenishing conveying gas, and with control plastic pellet concentration, additional tolerance is regulated according to transportation concentration and pressure-drop in pipeline variation, to obtain the optimum of system.Plastic pellet is sprayed into blast furnace through the winding-up pipe then, as the blast furnace fuel utilization.
The storehouse breechblock carries out pressure release, the plastic pellet storehouse of again plastic pellet being packed into after the pressure release after winding-up finishes.
Production unit flow process of the present invention is as follows:
The feeding machine 1 of packing into of plastic waste particle is after treatment delivered to crusher 2 fragmentations; being transported to hot melt nodulizer 3 by conveying belt again granulates; the plastic pellet of granularity≤10mm after the granulation falls into sieve 4, and the meticulous particle of granularity can return hot melt nodulizer 3 and granulate again.According to size classification, particle is delivered to plastic pellet storehouse 6 by feeding conveyer belt 5, and plastic pellet falls into storehouse breechblock 7 by gravity, and plastic pellet is delivered to winding-up by storehouse internal pressure and screw feeder and is responsible in 10.
Storehouse breechblock 7 is two, but alternately operating, to realize continuous winding-up.The winding-up person in charge 10 is provided with carrier pipe integrated pipeline before air compensation device 9 of 9, two storehouse breechblocks 7 of air compensation device.Plastic pellet through the winding-up person in charge 10, air compensation device 9 and divider 11, arrives blast furnaces 16 air ports through winding-up arm 12 and plastic spraying gum 15 again under the conveying of pressurized air or other source of the gas 8.
Divider 11 is to possess an import, a plurality of container of lifting one's head, and has resistance and decreases characteristics little, distributed uniform.The sum of lifting one's head of divider equates with blast-furnace tuyere quantity.Divider 11 is arranged on the top of blast furnace 16 throat platforms one side.Divider has a plurality of outlet stools, arranges by identical caliber, close length and similar shape from the winding-up arm that divider comes out, so that the resistance of each arm damage is equal as far as possible, reaches the purpose of uniformly distributing.In addition, the winding-up arm from divider to the air port all adopts vertical or keeps the arrangement form at certain inclination angle.
Lift one's head and the winding-up arm 12 of divider 11 join, and winding-up arm 12 is received the special-purpose plastic spraying gum 15 at place, blast furnace 16 air ports again, also can receive near the mixing tank 13 in blast furnace 16 air ports.On the winding-up arm 12 before the plastic spraying gum 15 mixing tank 13 is housed, to spray into blast furnace 16 by plastic spraying gum 15 behind the coal dust thorough mixing that transports with plastic pellet with from coal dust arm 14.Plastic spraying gum 15 is telescopic plastic spraying gum, its inner core winding-up plastics, its urceolus spray freezing air.The inner core front end system of plastic spraying gum 15 is made by high temperature material.
Mixing tank 13 is arranged on the winding-up arm 12 before near the blast-furnace tuyere the plastic spraying gum 15, and its quantity equates with the arm 12 of jetting, is used for and will enters blast furnace 16 by plastic spraying gum 15 behind plastic pellet and the coal dust thorough mixing.Also mixing tank 13 can be set, directly connect plastic spraying gum 15 at each winding-up arm 12 front end, plastic spraying gum 15 inserts in the blast furnace 16 air port belly pipes.
The present invention adopts the auxiliary method of carrying of pressed gas, wherein the pressure of the assist gas of Yao Qiuing necessary 〉=high furnace pressure adds the pressure-losses+0.03MPa that passes through transfer line and equipment.
Certainly, those skilled in the art in the present technique field will be appreciated that, the foregoing description only is to be used for illustrating the present invention, and be not as limitation of the invention, as long as in connotation scope of the present invention, all will drop in the scope of claim of the present invention conversion, the modification of the foregoing description.
Claims (4)
1. one kind sprays into the processing method and the production unit thereof of blast furnace with waste plastics particle, it is characterized in that its processing method is carried out as follows:
A. waste plastic product pre-treatment: the waste or used plastics goods of collecting are carried out decontamination clean, dry, remove the impurity that is mixed in wherein then, especially be hard impurity nonflammable and that granulate, classify by different varieties, and carry out classification by proportion differential 0.5, need carry out detoxification treatment for chloride poisonous impurity;
B. waste plastic product is granulated: with the chopping of the waste plastic product after the classification, its fragment size≤30mm granulates with the hot melt nodulizer, makes the particle of granularity≤10mm;
C. plastic waste grain winding-up: with the plastic waste particle by the plastic pellet storehouse storehouse breechblock of packing into, the storehouse breechblock adopts pressurized with compressed air and fluidisation, each storehouse breechblock all carries out alternately by the program loop of charging, pressurization, standby, winding-up, pressure release, charging again, carry gas that plastic pellet is responsible for along winding-up and be transported to divider, air compensation device on winding-up is responsible for then is used for replenishing carries gas with control plastic pellet concentration, and plastic pellet is sprayed into blast furnace through the winding-up pipe then;
Its production unit flow process is as follows:
The plastic waste particle feeding machine (1) of packing into is delivered to crusher (2) fragmentation; being transported to hot melt nodulizer (3) by conveying belt again granulates; plastic pellet after the granulation falls into sieve (4); the meticulous particle of granularity returns hot melt nodulizer (3) and granulates again; the particle that meets size classification is delivered to plastic pellet storehouse (6) by feeding conveyer belt (5); plastic pellet falls into storehouse breechblock (7) by gravity; plastic pellet is delivered to winding-up by storehouse internal pressure and screw feeder and is responsible in (10); winding-up is responsible for (10) and is provided with air compensation device (9); plastic pellet is under the conveying of pressurized air or other source of the gas (8); be responsible for (10) through winding-up; air compensation device (9) and divider (11) enter blast furnace (16) through winding-up arm (12) and plastic spraying gum (15) again.
2. processing method and the production unit thereof that waste plastics particle is sprayed into blast furnace according to claim 1, it is characterized in that described storehouse breechblock (7) is the storehouse breechblock of two alternately operatings, when a storehouse breechblock is jetted, another storehouse breechblock is in charging and waiting status, to implement continuous winding-up.
3. processing method and the production unit thereof that waste plastics particle is sprayed into blast furnace according to claim 1, it is characterized in that, on the preceding winding-up arm (12) of described plastic spraying gum (15) mixing tank (13) is housed, to spray into blast furnace (16) by plastic spraying gum (15) behind the coal dust thorough mixing that transports with plastic pellet with from coal dust arm (14).
4. according to claim 1 waste plastics particle is sprayed into the processing method and the production unit thereof of blast furnace, it is characterized in that described plastic spraying gum (15) is telescopic plastic spraying gum, its inner core winding-up plastics, its urceolus spray freezing air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100433811A CN100455676C (en) | 2007-07-03 | 2007-07-03 | Technical method for spraying waste plastics particle into blast furnace and production facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100433811A CN100455676C (en) | 2007-07-03 | 2007-07-03 | Technical method for spraying waste plastics particle into blast furnace and production facility |
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| Publication Number | Publication Date |
|---|---|
| CN101082066A true CN101082066A (en) | 2007-12-05 |
| CN100455676C CN100455676C (en) | 2009-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100433811A Expired - Fee Related CN100455676C (en) | 2007-07-03 | 2007-07-03 | Technical method for spraying waste plastics particle into blast furnace and production facility |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352093A (en) * | 2013-04-09 | 2013-10-16 | 宝钢集团新疆八一钢铁有限公司 | Novel debugging method for coal injection system |
| CN104384038A (en) * | 2014-10-29 | 2015-03-04 | 北京华福神雾工业炉有限公司 | Spraying device |
| CN105525051A (en) * | 2016-01-28 | 2016-04-27 | 重庆大学 | Environment-friendly blast furnace injection system |
| CN111548839A (en) * | 2020-06-23 | 2020-08-18 | 临沂晟鑫再生资源有限公司 | Waste polyurethane material recovered and processed into fuel and combustion process thereof |
| CN112779374A (en) * | 2021-02-05 | 2021-05-11 | 付文静 | Blast furnace jetting device |
| CN114769266A (en) * | 2022-03-02 | 2022-07-22 | 昆明理工大学 | Method for preparing mixed fuel of waste plastics and coal powder injected into blast furnace and injection method thereof |
| CN115820953A (en) * | 2023-02-08 | 2023-03-21 | 山西潞安环保能源开发股份有限公司 | Blast furnace injection coal containing coke powder and waste plastic and coal blending method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5772727A (en) * | 1993-12-21 | 1998-06-30 | Stahlwerke Bremen Gmbh | Process for the production of metal from metal ores |
| JP2004300456A (en) * | 2003-03-28 | 2004-10-28 | Sumitomo Metal Ind Ltd | Operation method for blowing synthetic resin particle to blast furnace |
-
2007
- 2007-07-03 CN CNB2007100433811A patent/CN100455676C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352093A (en) * | 2013-04-09 | 2013-10-16 | 宝钢集团新疆八一钢铁有限公司 | Novel debugging method for coal injection system |
| CN104384038A (en) * | 2014-10-29 | 2015-03-04 | 北京华福神雾工业炉有限公司 | Spraying device |
| CN105525051A (en) * | 2016-01-28 | 2016-04-27 | 重庆大学 | Environment-friendly blast furnace injection system |
| CN111548839A (en) * | 2020-06-23 | 2020-08-18 | 临沂晟鑫再生资源有限公司 | Waste polyurethane material recovered and processed into fuel and combustion process thereof |
| CN112779374A (en) * | 2021-02-05 | 2021-05-11 | 付文静 | Blast furnace jetting device |
| CN114769266A (en) * | 2022-03-02 | 2022-07-22 | 昆明理工大学 | Method for preparing mixed fuel of waste plastics and coal powder injected into blast furnace and injection method thereof |
| CN115820953A (en) * | 2023-02-08 | 2023-03-21 | 山西潞安环保能源开发股份有限公司 | Blast furnace injection coal containing coke powder and waste plastic and coal blending method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100455676C (en) | 2009-01-28 |
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Owner name: BAOSTEER ENGINEERING TECHNOLOGY GROUP CO., LTD Free format text: FORMER OWNER: BAOGANG ENGINEERING TECHN CO., LTD., SHANGHAI Effective date: 20100721 |
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Effective date of registration: 20100721 Address after: 201900 Shanghai city Baoshan District Tieli Road No. 2510 Patentee after: Baosteel Engeneering &Technology Group Co., Ltd. Address before: 201900 Shanghai city Baoshan District Tieli Road No. 2510 Patentee before: Shanghai Baogang Engineering Technology Co., Ltd. |
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Granted publication date: 20090128 Termination date: 20150703 |
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