CN105737171A - Waste oil and fat injection device for blast furnace - Google Patents
Waste oil and fat injection device for blast furnace Download PDFInfo
- Publication number
- CN105737171A CN105737171A CN201610178704.7A CN201610178704A CN105737171A CN 105737171 A CN105737171 A CN 105737171A CN 201610178704 A CN201610178704 A CN 201610178704A CN 105737171 A CN105737171 A CN 105737171A
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- waste oil
- blast furnace
- nebulizer
- atomization
- inlet nozzle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/05—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste oils
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2204/00—Supplementary heating arrangements
- F23G2204/10—Supplementary heating arrangements using auxiliary fuel
- F23G2204/101—Supplementary heating arrangements using auxiliary fuel solid fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2209/00—Specific waste
- F23G2209/10—Liquid waste
- F23G2209/102—Waste oil
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention relates to the field of waste disposal, in particular to a waste oil and fat injection device for a blast furnace. The waste oil and fat injection device comprises a storage container, a conveying unit, a distributor and atomization units. The storage container is connected with the conveying unit. The conveying unit is connected with the distributor. The distributor is connected with at least one atomization unit. The atomization units are connected with a coal injection pipeline of the blast furnace. A waste oil and fat mixture atomized by the atomization units is conveyed through the coal injection pipeline of the blast furnace to the blast furnace for combustion. According to the waste oil and fat injection device for the blast furnace, the waste oil and fat mixture in the storage container is pressurized by the conveying unit, distributed by the distributor and then conveyed to atomizers for atomization treatment; and the atomized waste oil and fat mixture is conveyed to the blast furnace for combustion through the coal injection pipeline of the blast furnace. The waste oil and fat mixture is disposed into high-pressure mist and then sprayed out. The waste oil and fat mixture can sufficiently burn at the moment of being injected into the blast furnace, and generation of dioxin, furan and other highly toxic substances is avoided. Meanwhile, heat generated by burning waste oil and fat can be used for production.
Description
Technical field
The present invention relates to offal treatment field, particularly to a kind of blast furnace waste oil blowing device.
Background technology
Oil substances is widely used in the hydraulic pressure in the field such as metallurgy, machining, lubrication, wear-resistant, fire-resistant, leakproof, sealing, the operation such as antirust.After oils and fats life-time service, the index such as its moisture, viscosity, acidity, cleannes can be deteriorated gradually, it is necessary to periodic replacement.System on Rolling Steel use roll need when grinding to use grinding fluid, cold-rolled process also needs to use emulsion, these oils and fatss are owing to the addition of the chemical substances such as substantial amounts of stabilizer, anticoagulant, preservative, thickening agent, toner, long-time recycle after wherein become danger wastes after amount of grease oxidation, it is necessary to landfill disposal again after burning.
The burning disposal of oils and fats is after waste oil filter pressing, dehydration, removal impurity, will to load burning in burner as cheap fuel.Normally used burner is rotary kiln, needs the fuel such as winding-up diesel oil that waste oil is heated, ignite during burning, and incendivity part in waste oil is burnt by the rotation of recycling rotary kiln completely.It addition, the ashes after burning also need to carry out specialty landfill.Owing to the temperature in incinerator is generally 900～1100 DEG C, waste oil burning is insufficient, and waste oil burns extremely toxic substances such as can producing a large amount of dioxin, furan at a lower temperature, and these materials are diffused in air and are difficult to degraded.
Summary of the invention
The embodiment of the present invention is by providing a kind of blast furnace waste oil blowing device, solve waste oil in prior art in burning disposal, be difficult to clean-burning technical problem, waste oil can fully be burnt in blast furnace, it is to avoid produce the extremely toxic substance such as dioxin, furan moment.Meanwhile, the heat that burning waste oil produces can be used for producing and in life.
Embodiments provide a kind of blast furnace waste oil blowing device, including: storage container, supply unit, allotter and atomization unit；
Described storage container is used for storing waste oil mixture, and described storage container is connected with described supply unit, and described supply unit is connected with described allotter；The waste oil mixture of described storage container is delivered to described allotter after described supply unit supercharging；
Described allotter is connected with described atomization unit, and described allotter is connected at least one described atomization unit, and described allotter is delivered to described atomization unit after being distributed by waste oil mixture and is atomized；
Described atomization unit is connected with pulverized coal injection pipeline, and the waste oil mixture after the atomization of described atomization unit is delivered to blast-furnace roasting through described pulverized coal injection pipeline.
Further, described supply unit includes: slush pump and multiple coil force (forcing) pump；
The input of described slush pump is connected with described storage container, and described mud delivery side of pump is connected with the input of described multiple coil force (forcing) pump, and described multiple coil pressurization delivery side of pump is connected with described allotter.
Further, described allotter includes: distributor body, straight pipe, the first inlet nozzle and oil outlet；
Described distributor body is internal is hollow structure；
Described first inlet nozzle is fixing with described distributor body to be connected, and described first inlet nozzle is connected with described multiple coil pressurization delivery side of pump；
Described oil outlet is fixing with described distributor body to be connected, and described oil outlet is connected with described atomization unit；
Being fixed with at least one described straight pipe inside described distributor body, the two ends of each described straight pipe are connected with two described oil outlets respectively, and described straight pipe uniformly offers multiple anti-blocking fuel feed hole.
Further, described atomization unit includes: nebulizer and compression air connecting tube；
Described nebulizer is connected with described oil outlet；
Described nebulizer is connected with described compressed air hose.
Further, described first inlet nozzle is arranged on the bottom of described distributor body.
Further, the diameter of described anti-blocking fuel feed hole is less than 3mm.
Further, described nebulizer includes: nebulizer body, suction nozzle, the second inlet nozzle, atomization oil gas output and pipeline through type swirl vane；
Described nebulizer body interior is provided with chamber, is provided with described pipeline through type swirl vane in described chamber；
One end of described suction nozzle is connected with described compression air connecting tube, and the other end of described suction nozzle is fixing with the front end of described nebulizer body to be connected, and described suction nozzle communicates with the intrinsic chamber of described nebulizer；
One end of described atomization oil gas output is fixing with the rear end of described nebulizer body to be connected, and the other end of described atomization oil gas output is connected with pulverized coal injection pipeline；Described atomization oil gas output communicates with the intrinsic chamber of described nebulizer；
Described second inlet nozzle is fixing with the sidepiece of described nebulizer body to be connected, and described second inlet nozzle is fixing with the intrinsic chamber of described nebulizer to be connected；Described second inlet nozzle is at least one, and described second inlet nozzle is circularly and evenly distributed around described nebulizer body side.
Further, the front end inner chamber of described nebulizer body is Laval nozzle shape.
Further, described second inlet nozzle is six.
Further, also include: blender；Described blender is connected with described storage container, and described blender is for stirring the waste oil mixture within described storage container.
One or more technical schemes that the embodiment of the present invention provides, at least possess following beneficial effect or advantage:
1, the blast furnace waste oil blowing device that the embodiment of the present invention provides, waste oil mixture in storage container is delivered to nebulizer after supply unit supercharging, the distribution of the allocated device and carries out atomization process, waste oil mixture after atomization is delivered to blast-furnace roasting through pulverized coal injection pipeline, spray after becoming high pressure fog state due to waste oil mixture process, can fully burn moment when spraying into blast furnace, it is to avoid produce the extremely toxic substance such as dioxin, furan.Meanwhile, the heat that burning waste oil produces can be used in production.
2, the blast furnace waste oil blowing device that the embodiment of the present invention provides, straight pipe uniformly offers multiple anti-blocking fuel feed hole, anti-blocking fuel feed hole can effectively prevent the precipitate in allotter and decorating film from entering nebulizer, it is prevented that nebulizer blocks, and improves the service life of blast furnace waste oil blowing device.
3, the blast furnace waste oil blowing device that the embodiment of the present invention provides, the first inlet nozzle is arranged on the bottom of distributor body, it is simple to cleaning is deposited on the precipitate bottom distributor body.
4, the blast furnace waste oil blowing device that the embodiment of the present invention provides, is provided with pipeline through type swirl vane, increases the spouting velocity of waste oil mixture, further increase atomizing effect in the chamber of nebulizer body interior.
5, the blast furnace waste oil blowing device that the embodiment of the present invention provides, the front end inner chamber of nebulizer body is Laval nozzle shape, increases flow velocity, improves atomizing effect.
6, the blast furnace waste oil blowing device that the embodiment of the present invention provides, atomization unit is provided with compression air connecting tube, passes into compression air and can improve the atomizing effect of waste oil mixture, contributes to combustion-supporting waste oil and prevent pulverized coal injection pipe backfire.
Accompanying drawing explanation
The blast furnace waste oil blowing device structural representation that Fig. 1 provides for the embodiment of the present invention；
The allotter front view that Fig. 2 provides for the embodiment of the present invention；
The allotter sectional view that Fig. 3 provides for the embodiment of the present invention；
The nebulizer side view that Fig. 4 provides for the embodiment of the present invention；
The nebulizer sectional view that Fig. 5 provides for the embodiment of the present invention.
Detailed description of the invention
The embodiment of the present invention is by providing a kind of blast furnace waste oil blowing device, solve waste oil in prior art in burning disposal, be difficult to clean-burning technical problem, waste oil can fully be burnt in blast furnace, it is to avoid produce the extremely toxic substance such as dioxin, furan moment.Meanwhile, the heat that burning waste oil produces can be used in production.
Referring to Fig. 1～Fig. 5, embodiments providing a kind of blast furnace waste oil blowing device, this blast furnace waste oil blowing device includes: storage container 2, blender 1, supply unit, allotter 5 and atomization unit.Storage container 2 is used for storing waste oil mixture；Blender 1 is connected with storage container 2, and blender 1 is for stirring the waste oil mixture within storage container 2.Storage container 2 is connected with supply unit, and supply unit is connected with allotter 5, and the waste oil mixture of storage container 2 is delivered to allotter 5 after supply unit pressurized treatment.Allotter 5 is connected with atomization unit, and allotter 5 is connected at least one atomization unit, and allotter 5 is delivered to atomization unit after being distributed by waste oil mixture and carries out atomization process.Atomization unit is connected with pulverized coal injection pipeline, and the waste oil mixture after atomization unit atomization is delivered to blast-furnace roasting through pulverized coal injection pipeline (comprising three-way valve, coal powder lance).
Concrete, referring to Fig. 1～Fig. 5, supply unit includes slush pump 3 and multiple coil force (forcing) pump 4, allotter 5 includes distributor body 51, straight pipe, the first inlet nozzle 53 and oil outlet 52, atomization unit includes nebulizer 6 and compression air connecting tube 7, and nebulizer 6 includes nebulizer body 61, suction nozzle the 62, second inlet nozzle 63, atomization oil gas output 64 and pipeline through type swirl vane.
Referring to Fig. 1, the input of slush pump 3 is connected with storage container 2, and the input of slush pump 3 arranges the drainage screen of 2mm, and suitably controls the position height of suction inlet, it is prevented that the large granular materials of precipitation is inhaled into.The outfan of slush pump 3 is connected with the input of multiple coil force (forcing) pump 4, and slush pump 3 is for pumping into multiple coil force (forcing) pump 4 by the waste oil mixture in storage container 2.Outfan and first inlet nozzle 53 of multiple coil force (forcing) pump 4 connect, and multiple coil force (forcing) pump 4 is for carrying out pressurized treatment to waste oil mixture.
Referring to Fig. 1～Fig. 3, distributor body 51 is internal is hollow structure；First inlet nozzle 53 is arranged on the bottom of distributor body 51, it is simple to be deposited on the precipitate bottom distributor body 51 by the first inlet nozzle 53 cleaning；First inlet nozzle 53 is fixing with distributor body 51 to be connected, and the first inlet nozzle 53 connects the inside of distributor body 51.Oil outlet 52 is fixing with distributor body 51 to be connected, and oil outlet 52 connects the inside of distributor body 51.Distributor body 51 is internal is fixed with at least one straight pipe (the present embodiment adopts six roots of sensation straight pipe), the two ends of each straight pipe are connected with two oil outlets 52 respectively, straight pipe uniformly offers multiple anti-blocking fuel feed hole 54, the diameter of anti-blocking fuel feed hole 54 is less than 3mm, anti-blocking fuel feed hole 54 is used for preventing the precipitate in allotter 5 and decorating film entrance nebulizer 6, it is prevented that nebulizer 6 blocks.It addition, a switching ball and waste oil return duct can be connected at another first inlet nozzle 53 of allotter 5, control waste oil mixture by switching ball and be back in storage element or multiple coil force (forcing) pump, it is prevented that site environment is polluted by commissioning device.
Referring to Fig. 1, Fig. 4 and Fig. 5, nebulizer body 61 is internally provided with chamber, is provided with pipeline through type swirl vane in chamber, and pipeline through type swirl vane increases the spouting velocity of waste oil mixture, further increases atomizing effect；Nebulizer body 61 front end inner chamber (part for chamber) is designed as Laval nozzle shape, is used for increasing flow velocity, to improve atomizing effect.One end of suction nozzle 62 is connected with compression air connecting tube 7, and the other end of suction nozzle 62 is fixing with the front end of nebulizer body 61 to be connected, and suction nozzle 62 communicates with the chamber in nebulizer body 61；Compressed air hose is connected with compressed air gas source, passes into compression air by compressed air hose in nebulizer 6, improves the atomizing effect of waste oil mixture, combustion-supporting waste oil and prevent pulverized coal injection pipe backfire.One end of atomization oil gas output 64 is fixing with the rear end of nebulizer body 61 to be connected, and the other end of atomization oil gas output 64 is connected with pulverized coal injection pipeline, and atomization oil gas output 64 communicates with the chamber in nebulizer body 61.Second inlet nozzle 63 is fixing with the sidepiece of nebulizer body 61 to be connected, and the second inlet nozzle 63 is fixing with the chamber in nebulizer body 61 to be connected；Second inlet nozzle 63 is at least one (the present embodiment adopts six the second inlet nozzles 63), and the second inlet nozzle 63 is circularly and evenly distributed around nebulizer body 61 sidepiece.Second inlet nozzle 63 is connected with oil outlet 52, and the waste oil mixture in allotter 5 inputs nebulizer 6 through oil outlet 52 and the second inlet nozzle 63.
Referring to Fig. 1～Fig. 5, the using method of the blast furnace waste oil blowing device that the embodiment of the present invention provides is as follows:
By useless grinding fluid, emulsion, waste oil etc. with in cucurbitula car transport to on-the-spot storage element, variety classes or batch waste oil can deposit respectively, it is possible to mixed storage by a certain percentage.Utilize blender 1 to be stirred by the waste oil mixture in storage container 2, increase the mobility of waste oil mixture.Compression air is first passed into, it is prevented that open pipe backfire during three-way valve before winding-up waste oil mixture.Slush pump 3 is utilized to be pressurizeed by waste oil mixture suction multiple coil force (forcing) pump, waste oil mixture after multiple coil force (forcing) pump pressurizes inputs allotter 5 through pipeline, waste oil mixture passes through, in the through type rotating vane of the first oil-in of allotter 5, anti-blocking fuel feed hole 54, oil-out entrance nebulizer 6, to spray in In Raceway Before Tuyere of Blast Furnace and burn in nebulizer 6 after carrying out high-pressure machinery atomization and mixing with compression air.
In actual applications, with junction, coal chute road, one three-way valve can be installed at blast-furnace tuyere coal powder lance, for fast shut-off or the connection opening coal powder lance and coal injection pipe or spray bar, it is ensured that a pipeline in any time coal injection pipe or spray bar keeps connecting with coal powder lance.Three-way valve can be adjusted when stopping winding-up waste oil mixture and carry out coal powder injection, not affect blast furnace and normally produce.Under normal circumstances useless grinding fluid and waste emulsified mixture contain substantial amounts of water (about more than 90%), the methods such as precipitation, filtration can be passed through before winding-up, carry out decrement treatment, to reduce blast furnace blowing treating capacity, and alleviate the impact on blast furnace.It addition, Industry Waste oils and fats generally also can contain some foreign material, such as iron scale, trade waste etc., can in storage element by the stirring of blender 1 so as to separate with oils and fats, and be finally deposited in tank bottoms, clear up after winding-up terminates.
The blast furnace waste oil blowing device that the embodiment of the present invention provides at least possesses following beneficial effect:
The blast furnace waste oil blowing device that the embodiment of the present invention provides, waste oil mixture in storage container is delivered to nebulizer after supply unit supercharging, the distribution of the allocated device and carries out atomization process, waste oil mixture after atomization is delivered to blast-furnace roasting through pulverized coal injection pipeline, spray after becoming high pressure fog state due to waste oil mixture process, can fully burn moment when spraying into blast furnace, it is to avoid produce the extremely toxic substance such as dioxin, furan.Meanwhile, the heat that burning waste oil produces can be used in production.
The blast furnace waste oil blowing device that the embodiment of the present invention provides, straight pipe uniformly offers multiple anti-blocking fuel feed hole, anti-blocking fuel feed hole can effectively prevent the precipitate in allotter and decorating film from entering nebulizer, it is prevented that nebulizer blocks, and improves the service life of blast furnace waste oil blowing device.
The blast furnace waste oil blowing device that the embodiment of the present invention provides, the first inlet nozzle is arranged on the bottom of distributor body, it is simple to cleaning is deposited on the precipitate bottom distributor body.
The blast furnace waste oil blowing device that the embodiment of the present invention provides, is provided with pipeline through type swirl vane, increases the spouting velocity of waste oil mixture, further increase atomizing effect in the chamber of nebulizer body interior.
The blast furnace waste oil blowing device that the embodiment of the present invention provides, the front end inner chamber of nebulizer body is Laval nozzle shape, increases flow velocity, improves atomizing effect.
The blast furnace waste oil blowing device that the embodiment of the present invention provides, atomization unit is provided with compression air connecting tube, passes into compression air and can improve the atomizing effect of waste oil mixture, contributes to combustion-supporting waste oil and prevent pulverized coal injection pipe backfire.
It should be noted last that, above detailed description of the invention is only in order to illustrate technical scheme and unrestricted, although the present invention being described in detail with reference to example, it will be understood by those within the art that, technical scheme can be modified or equivalent replacement, without deviating from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of scope of the presently claimed invention.
Claims (10)
1. a blast furnace waste oil blowing device, it is characterised in that including: storage container, supply unit, allotter and atomization unit；
Described storage container is used for storing described waste oil, and described supply unit connects described storage container and described allotter；The waste oil of described storage container is delivered to described allotter after described supply unit supercharging；
Described allotter is connected with described atomization unit, and described allotter is delivered to described atomization unit after being distributed by described waste oil and is atomized；
Described atomization unit is connected with pulverized coal injection pipeline, and the waste oil after the atomization of described atomization unit is delivered to blast-furnace roasting through described pulverized coal injection pipeline.
2. blast furnace waste oil blowing device as claimed in claim 1, it is characterised in that described supply unit includes: slush pump and multiple coil force (forcing) pump；
The input of described slush pump is connected with described storage container, and described mud delivery side of pump is connected with the input of described multiple coil force (forcing) pump, and described multiple coil pressurization delivery side of pump is connected with described allotter.
3. blast furnace waste oil blowing device as claimed in claim 2, it is characterised in that described allotter includes: distributor body, straight pipe, the first inlet nozzle and oil outlet；
Described distributor body is internal is hollow structure；
Described first inlet nozzle is fixing with described distributor body to be connected, and the inner of described first inlet nozzle is arranged on the inside of described distributor body, and the outer end of described first inlet nozzle is arranged on the outside of described distributor body；The outer end of described first inlet nozzle is connected with described multiple coil pressurization delivery side of pump；
Described oil outlet is fixing with described distributor body to be connected, and the outer end of described oil outlet is arranged on the outside of described distributor body, and the inner of described oil outlet is arranged on the inside of described distributor body, and the outer end of described oil outlet is connected with described atomization unit；
Being fixed with at least one described straight pipe inside described distributor body, the two ends of each described straight pipe are connected with the inner of two described oil outlets respectively；Described straight pipe uniformly offers multiple anti-blocking fuel feed hole.
4. blast furnace waste oil blowing device as claimed in claim 3, it is characterised in that described atomization unit includes: nebulizer and compression air connecting tube；
Described nebulizer is connected with described oil outlet；
Described nebulizer is connected with described compression air connecting tube.
5. blast furnace waste oil blowing device as claimed in claim 4, it is characterised in that described first inlet nozzle is arranged on the bottom of described distributor body.
6. the blast furnace waste oil blowing device as described in any one of claim 3～5, it is characterised in that the diameter of described anti-blocking fuel feed hole is less than 3mm.
7. the blast furnace waste oil blowing device as described in claim 4 or 5, it is characterised in that described nebulizer includes: nebulizer body, suction nozzle, the second inlet nozzle, atomization oil gas output and pipeline through type swirl vane；
Described nebulizer body interior is provided with chamber, is provided with described pipeline through type swirl vane in described chamber；
One end of described suction nozzle is connected with described compression air connecting tube, and the other end of described suction nozzle is fixing with the front end of described nebulizer body to be connected, and described suction nozzle communicates with the intrinsic chamber of described nebulizer；
One end of described atomization oil gas output is fixing with the rear end of described nebulizer body to be connected, and the other end of described atomization oil gas output is connected with pulverized coal injection pipeline；Described atomization oil gas output communicates with the intrinsic chamber of described nebulizer；
Described second inlet nozzle is fixing with the sidepiece of described nebulizer body to be connected, and described second inlet nozzle is fixing with the intrinsic chamber of described nebulizer to be connected；Described second inlet nozzle is at least one, and described second inlet nozzle is circularly and evenly distributed around described nebulizer body side.
8. blast furnace waste oil blowing device as claimed in claim 7, it is characterised in that the front end inner chamber of described nebulizer body is Laval nozzle shape.
9. blast furnace waste oil blowing device as claimed in claim 7 or 8, it is characterised in that described second inlet nozzle is six.
10. the blast furnace waste oil blowing device as described in any one of Claims 1 to 4, it is characterised in that also include: blender；Described blender is for stirring the waste oil within described storage container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610178704.7A CN105737171B (en) | 2016-03-25 | 2016-03-25 | A kind of blast furnace waste oil blowing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610178704.7A CN105737171B (en) | 2016-03-25 | 2016-03-25 | A kind of blast furnace waste oil blowing device |
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| CN105737171A true CN105737171A (en) | 2016-07-06 |
| CN105737171B CN105737171B (en) | 2017-12-22 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107559845A (en) * | 2017-10-16 | 2018-01-09 | 陕西煤化能源有限公司 | It is a kind of that the device and method for burning processing used oil is mixed with coal gasifier |
| CN108548187A (en) * | 2018-03-22 | 2018-09-18 | 马鞍山钢铁股份有限公司 | Oily waste processing system and its resource utilization method |
| CN111810954A (en) * | 2020-07-14 | 2020-10-23 | 山东大学 | Waste engine oil treatment method and treatment system |
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| CN111810954A (en) * | 2020-07-14 | 2020-10-23 | 山东大学 | Waste engine oil treatment method and treatment system |
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| Publication number | Publication date |
|---|---|
| CN105737171B (en) | 2017-12-22 |
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