CN105419833A - System and production process for blending coal for coking by utilizing waste plastics - Google Patents
System and production process for blending coal for coking by utilizing waste plastics Download PDFInfo
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- CN105419833A CN105419833A CN201510875168.1A CN201510875168A CN105419833A CN 105419833 A CN105419833 A CN 105419833A CN 201510875168 A CN201510875168 A CN 201510875168A CN 105419833 A CN105419833 A CN 105419833A
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- coal
- coke
- stove
- coke oven
- blending
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/04—Other carbonising or coking processes; Features of destructive distillation processes in general using charges of special composition
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The invention discloses a system and production process for blending coal for coking by utilizing waste plastics. The system comprises a conveyor trough correspondingly communicated with a coal yard, wherein a feeding hole, discharge sieve holes and an exhaust gas discharge outlet are formed in a plastic melting furnace; a heating coil is arranged inside the plastic melting furnace; the non-caking coal conveyor trough is correspondingly communicated with a forming machine; the forming machine is correspondingly communicated with a coke oven; the non-caking coal conveyor trough is correspondingly communicated with the coke oven; the exhaust gas discharge outlet is correspondingly communicated with the coke oven by a pipeline; a coke oven gas outlet of the coke oven is correspondingly communicated with the heating coil; the coke oven is correspondingly communicated with coke quenching ovens; the coke quenching ovens are correspondingly communicated with a wharf. The system and production process for blending coal for coking by utilizing waste plastics have the beneficial effect that exhaust gases generated in the melting process of plastics in the plastic melting furnace enter the coke oven to burn, thus reducing discharge of harmful gases.
Description
Technical field
The present invention relates to waste plastics recovery and utilize field, especially a kind of utilize plastic waste to carry out coal-blending coking system and production technique.
Background technology
Current most of plastic waste is processed by the method for burying and combustion method.Need take a large amount of soil by the method treatment of waste plastics of burying, and cause soil pollution and groundwater resource to pollute, and the high heating value contained by it fails to utilize; Combustion method is by plastic waste is burnt, and reclaims a kind of method of its heat energy, but can discharge the obnoxious flavoures such as HCl, HCN, NOx and leave the solid residue containing some toxic heavy metal when burning.All there is secondary pollution problem in visible above two kinds of methods, needs to develop new treatment process.Coking refers generally to the process of organic substance carbonization zoom, in actual use, the developing direction that plastic waste utilizes by plastic waste and coal cocoaking, in prior art, plastic waste and coal cocoaking are that plastic waste waste plastics recycling machine is prepared into plastic grain, add in coal, enter coke oven together.In the process preparing plastic grain, waste heat waste is serious.Moreover in coal blending process, there will be serious segregation problems.
Summary of the invention
In order to overcome defect of the prior art, provide a kind of utilize plastic waste to carry out coal-blending coking system and production technique.
The present invention is realized by following proposal:
A kind of system utilizing plastic waste to carry out coal-blending coking, comprise the coal blending belt that be communicated with corresponding to coal yard, described coal blending belt is provided with pulverizer, described coal blending belt is corresponding with plastic molting stove to be communicated with, described plastic molting stove is provided with opening for feed, discharging sieve aperture, Waste gas outlet, heating coil is provided with at described plastic molting furnace interior, described coal blending belt is corresponding with forming machine to be communicated with, described forming machine is corresponding with coke oven to be communicated with, described coal blending belt is corresponding with coke oven to be communicated with, described Waste gas outlet communicates by pipeline is corresponding with coke oven, the coke-oven gas outlet of described coke oven is corresponding with heating coil to communicate, described coke oven is corresponding with quenching stove to be communicated with, described quenching stove is corresponding with coal airing platform to communicate.
Also be provided with agitator at described plastic molting stove, described agitator is driven by motor.
Described plastic molting stove is provided with temp probe.
Described quenching stove comprises coke dry quenching furnace and coke wet quenching stove.
Thermal insulation layer is provided with in the outside of described plastic molting stove.
Utilize plastic waste to carry out a production technique for coal-blending coking, comprise the following steps:
The first step, passes through coal blending Belt Conveying by after coking coal, bottle coal, rich coal, lean coal mixing in coal yard;
The plastics of thawing are added in mixed coal in the plastic molting stove above coal blending belt by second step, and add-on is the 2-3% of coal total mass after mixing, delivers to coking in coke oven after pulverizing;
3rd step, after coke maturation in coke oven, enter in quenching stove, in coke dry quenching furnace, coke and rare gas element carry out heat exchange, coke is not cooled to average less than 200 DEG C, be discharged to through discharger and transfer roller carry out sieve Jiao and unload outward transport after cooling to coal airing platform again, wherein quenching stove is a kind of in coke dry quenching furnace, coke wet quenching stove or two kinds;
The waste heat that coke oven produces melts plastics, and the waste gas that plastic molting process produces imports coke oven by particular conduit.
In second step, the plastics of described thawing melt at 180-220 DEG C of temperature.
Beneficial effect of the present invention is:
1. a kind of utilize plastic waste to carry out waste gas that the plastics in the plastic molting stove of the system of coal-blending coking produce in melting process of the present invention enters in coke oven and burns, and reduces the discharge of obnoxious flavour;
2. a kind of system utilizing plastic waste to carry out coal-blending coking of the present invention is also provided with agitator at plastic molting stove, agitator is driven by motor, agitator, through whole body of heater, makes a certain size, density is homogeneous after a certain proportion of scrapped plastic products melting, improves quality product;
3. a kind of system utilizing plastic waste to carry out coal-blending coking of the present invention is provided with discharging sieve aperture, by the discharging of discharging sieve aperture, the plastic liquid after melting is dripped equably on coal.
Accompanying drawing explanation
Fig. 1 is a kind of syndeton schematic diagram figure utilizing plastic waste to carry out coal-blending coking of the present invention.
Fig. 2 is the detail of construction in A portion in Fig. 1.
In figure: 1 is coal yard, 2 is coal blending belt, and 3 is temp probe, 4 is pulverizer, and 5 is plastic molting stove, and 51 is feed-pipe, 52 is discharging sieve aperture, and 53 is Waste gas outlet, and 54 is heating coil, 55 is agitator, and 56 is motor, and 6 is forming machine, 7 is coke oven, 8 is coal airing platform, and 9 is coke dry quenching furnace, and 10 is coke wet quenching stove.
Embodiment
Below in conjunction with Fig. 1-2, the preferred embodiment of the invention is further illustrated:
A kind of system utilizing plastic waste to carry out coal-blending coking, comprise the coal blending belt 2 that be communicated with corresponding to coal yard 1, described coal blending belt 2 is provided with pulverizer 4, described coal blending belt 2 is corresponding with plastic molting stove 5 to be communicated with, described plastic molting stove 5 is provided with opening for feed 51, discharging sieve aperture 52, Waste gas outlet 53, heating coil 54 is provided with in described plastic molting stove 5 inside, described coal blending belt 2 is corresponding with forming machine 6 to be communicated with, described forming machine 6 is corresponding with coke oven 7 to be communicated with, described coal blending belt 2 is corresponding with coke oven 7 to be communicated with, described Waste gas outlet 53 communicates by pipeline is corresponding with coke oven 7, the coke-oven gas outlet of described coke oven 7 is corresponding with heating coil 54 to communicate, the heat produced by coke-oven gas is heated plastic molting stove, melt plastics wherein.Described coke oven 7 is corresponding with quenching stove to be communicated with, and described quenching stove is corresponding with coal airing platform 8 to communicate.A kind of system utilizing plastic waste to carry out coal-blending coking of the present invention is provided with discharging sieve aperture, by the discharging of discharging sieve aperture, the plastic liquid after melting is dripped equably on coal.The present invention is a kind of, and utilize plastic waste to carry out waste gas that the plastics in the plastic molting stove of the system of coal-blending coking produce in melting process enters in coke oven burns, and reduces the discharge of obnoxious flavour.
Also be provided with agitator 55 at described plastic molting stove 5, described agitator 55 is driven by motor 56.A kind of system utilizing plastic waste to carry out coal-blending coking of the present invention is also provided with agitator at plastic molting stove, agitator is driven by motor, agitator, through whole body of heater, makes a certain size, density is homogeneous after a certain proportion of scrapped plastic products melting, improves quality product.Described plastic molting stove 5 is provided with temp probe 3.By temp probe, the temperature in plastic molting stove is monitored, adjust manufacturing parameter in time.
Thermal insulation layer is provided with in the outside of described plastic molting stove 5.The setting of thermal insulation layer improves the efficiency of energy utilization of plastic molting stove of the present invention, prevents heat from distributing.In the present embodiment, feed-pipe is corresponding with screw extrusion feeding device to be communicated with, and plastic waste enters plastic molting stove by feed-pipe after extruding in screw extrusion feeding device.
Described quenching stove comprises coke dry quenching furnace 9 and coke wet quenching stove 10.After coke maturation in native system in coke oven, enter in coke dry quenching furnace, in coke dry quenching furnace, coke and rare gas element carry out heat exchange, and coke is not cooled to average less than 200 DEG C, be discharged on transfer roller carry out sieve Jiao through discharger.In the present embodiment, wet quenching is alternatives, and during employing wet quenching, coke imports in coke wet quenching stove through coke guide and carries out water spray quenching.Coke after quenching unloads and be sent to burnt treatment system after cooling to coal airing platform.Wherein, coke dry quenching furnace, coke wet quenching stove are existing known technology, do not repeat them here its structure and principle.
Utilize plastic waste to carry out a production technique for coal-blending coking, comprise the following steps:
The first step, passes through coal blending Belt Conveying by after coking coal, bottle coal, rich coal, lean coal mixing in coal yard;
The plastics of thawing are added in mixed coal in the plastic molting stove above coal blending belt by second step, and add-on is the 2-3% of coal total mass after mixing, delivers to coking in coke oven after pulverizing;
3rd step, after coke maturation in coke oven, enter in quenching stove, in coke dry quenching furnace, coke and rare gas element carry out heat exchange, coke is not cooled to average less than 200 DEG C, be discharged to through discharger and transfer roller carry out sieve Jiao and unload outward transport after cooling to coal airing platform again, wherein quenching stove is a kind of in coke dry quenching furnace, coke wet quenching stove or two kinds;
The waste heat that coke oven produces melts plastics, and the waste gas that plastic molting process produces imports coke oven by particular conduit.
In second step, the plastics of described thawing melt at 180-220 DEG C of temperature.
Production technique of the present invention, in conjunction with existing coking process, makes coke-oven plant's waste heat be fully used.Processing unit is simple, easy to operate.The performance of the metallurgical coke refined out is improved, and reduces coking coal consumption, saves coking cost.Meanwhile, the inevitable segregation problems of Co-coking With Coal And Waste Plastics ordinary method can effectively be solved.
Although done comparatively detailed elaboration to technical scheme of the present invention and enumerated; be to be understood that; to those skilled in the art; amendment is made to above-described embodiment or adopts equivalent replacement scheme; this is apparent to those skilled in the art; these modifications or improvements without departing from theon the basis of the spirit of the present invention, all belong to the scope of protection of present invention.
Claims (7)
1. the system utilizing plastic waste to carry out coal-blending coking, comprise the coal blending belt (2) that be communicated with corresponding to coal yard (1), it is characterized in that: described coal blending belt (2) is provided with pulverizer (4), described coal blending belt (2) is corresponding with plastic molting stove (5) to be communicated with, described plastic molting stove (5) is provided with opening for feed (51), discharging sieve aperture (52), Waste gas outlet (53), heating coil (54) is provided with in described plastic molting stove (5) inside, described coal blending belt (2) is corresponding with forming machine (6) to be communicated with, described forming machine (6) is corresponding with coke oven (7) to be communicated with, described coal blending belt (2) is corresponding with coke oven (7) to be communicated with, described Waste gas outlet (53) communicates by pipeline is corresponding with coke oven (7), the coke-oven gas outlet of described coke oven (7) is corresponding with heating coil (54) to communicate, described coke oven (7) is corresponding with quenching stove to be communicated with, described quenching stove is corresponding with coal airing platform (8) to communicate.
2. a kind of system utilizing plastic waste to carry out coal-blending coking according to claim 1, it is characterized in that: be also provided with agitator (55) described plastic molting stove (5), described agitator (55) is driven by motor (56).
3. a kind of system utilizing plastic waste to carry out coal-blending coking according to claim 1, is characterized in that: on described plastic molting stove (5), be provided with temp probe (3).
4. a kind of system utilizing plastic waste to carry out coal-blending coking according to claim 1, is characterized in that: described quenching stove comprises coke dry quenching furnace (9) and coke wet quenching stove (10).
5. a kind of system utilizing plastic waste to carry out coal-blending coking according to claim 1, is characterized in that: be provided with thermal insulation layer in the outside of described plastic molting stove (5).
6. utilize plastic waste to carry out a production technique for coal-blending coking, it is characterized in that, comprise the following steps:
The first step, passes through coal blending Belt Conveying by after coking coal, bottle coal, rich coal, lean coal mixing in coal yard;
The plastics of thawing are added in mixed coal in the plastic molting stove above coal blending belt by second step, and add-on is the 2-3% of coal total mass after mixing, delivers to coking in coke oven after pulverizing;
3rd step, after coke maturation in coke oven, enter in quenching stove, in coke dry quenching furnace, coke and rare gas element carry out heat exchange, coke is not cooled to average less than 200 DEG C, be discharged to through discharger and transfer roller carry out sieve Jiao and unload outward transport after cooling to coal airing platform again, wherein quenching stove is a kind of in coke dry quenching furnace, coke wet quenching stove or two kinds;
The waste heat that coke oven produces melts plastics, and the waste gas that plastic molting process produces imports coke oven by particular conduit.
7. a kind of production technique utilizing plastic waste to carry out coal-blending coking according to claim 1, is characterized in that: in second step, and the plastics of described thawing melt at 180-220 DEG C of temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510875168.1A CN105419833A (en) | 2015-12-02 | 2015-12-02 | System and production process for blending coal for coking by utilizing waste plastics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510875168.1A CN105419833A (en) | 2015-12-02 | 2015-12-02 | System and production process for blending coal for coking by utilizing waste plastics |
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| CN105419833A true CN105419833A (en) | 2016-03-23 |
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| CN201510875168.1A Pending CN105419833A (en) | 2015-12-02 | 2015-12-02 | System and production process for blending coal for coking by utilizing waste plastics |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002047493A (en) * | 2000-08-02 | 2002-02-12 | Nippon Steel Corp | Coke production method |
| CN2568662Y (en) * | 2002-07-04 | 2003-08-27 | 首钢总公司 | Co-coking processing plant for waste plastic and coal |
| CN2630249Y (en) * | 2003-07-07 | 2004-08-04 | 王新里 | Constant temperature waste-plastic catalytic cracking apparatus for preparing fuel with circulating slag-tap |
| CN1580189A (en) * | 2003-08-01 | 2005-02-16 | 首钢总公司 | Waste plastic processing method for increasing coke strength and its apparatus system |
| CN101255342A (en) * | 2008-03-24 | 2008-09-03 | 莱芜钢铁股份有限公司 | Method for coal-blending coking by using waste plastics |
| CN205152151U (en) * | 2015-12-02 | 2016-04-13 | 黑龙江省科学院科技孵化中心 | System for utilize waste plastics to carry out blending coking |
-
2015
- 2015-12-02 CN CN201510875168.1A patent/CN105419833A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002047493A (en) * | 2000-08-02 | 2002-02-12 | Nippon Steel Corp | Coke production method |
| CN2568662Y (en) * | 2002-07-04 | 2003-08-27 | 首钢总公司 | Co-coking processing plant for waste plastic and coal |
| CN2630249Y (en) * | 2003-07-07 | 2004-08-04 | 王新里 | Constant temperature waste-plastic catalytic cracking apparatus for preparing fuel with circulating slag-tap |
| CN1580189A (en) * | 2003-08-01 | 2005-02-16 | 首钢总公司 | Waste plastic processing method for increasing coke strength and its apparatus system |
| CN101255342A (en) * | 2008-03-24 | 2008-09-03 | 莱芜钢铁股份有限公司 | Method for coal-blending coking by using waste plastics |
| CN205152151U (en) * | 2015-12-02 | 2016-04-13 | 黑龙江省科学院科技孵化中心 | System for utilize waste plastics to carry out blending coking |
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Application publication date: 20160323 |
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