CN104073584A - Integrated equipment for preparing KR (Kanbara Reactor) desulfurizer and preparation method thereof - Google Patents
Integrated equipment for preparing KR (Kanbara Reactor) desulfurizer and preparation method thereof Download PDFInfo
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- CN104073584A CN104073584A CN201410306178.9A CN201410306178A CN104073584A CN 104073584 A CN104073584 A CN 104073584A CN 201410306178 A CN201410306178 A CN 201410306178A CN 104073584 A CN104073584 A CN 104073584A
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Abstract
The invention relates to integrated equipment for preparing KR (Kanbara Reactor) desulfurizer. The equipment comprises a raw material receiving groove, an under-groove vibrating feeder, a raw material lifter, a raw material cabin, a raw material vibrating feeder, a belt conveyor, a jaw crusher, a pre-grinding lifter, an intermediate hopper, a mill vibrating feeder, a mill, a post-grinding lifter, screening equipment, mixed feeding equipment, prilling equipment, drying and straightening equipment, an aggregate crusher, a product limestone batch hopper, a lime electric clapper, a double-pipe stirrer, a fluorite electric clapper, a double-pipe and a product desulfurizer cabin. The invention further relates to a preparation method of the KR desulfurizer. The integrated equipment for preparing KR desulfurizer not only can produce the KR desulfurizer in a definite proportion, but also can recover active lime sieve residues and post-graded active lime fine powder, so that the utilization ratio of the active lime raw material is improved, the problem that ultrafine active lime needs to be conveyed outside is solved, and meanwhile, the comprehensive cost for preparing the KR desulfurizer is lowered and the environmental pollution caused by the ultrafine fine powder is reduced.
Description
Technical field
The present invention relates to a kind of KR sweetening agent and prepare integrated equipment and preparation method, for metallurgy industry and similar preparation industry.
Background technology
KR desulfurization is current domestic comparatively conventional molten iron desulfurizing method, and the consumption of its sweetening agent is about 10kg/ ton molten iron.Sweetening agent is mainly mixed and is formed by fluorite and quickened lime, and according to the ratio of molten steel composition capable of regulating fluorite and quickened lime, generally, this ratio is 1:9.
Generally, prepare the Fluorspar Powder of sweetening agent and the granularity of active lime powder and be controlled at about 0.5～1.0mm, too thin sweetening agent easy scaling loss produce flying dust in sweetening process, is harmful to whole sweetening process.
Current sweetening agent preparation technology is general all by the superfine active lime powder lower than 0.5mm that produces approximately 30%, and this part fine powder can not be directly used in the preparation of sweetening agent, must transport outward and process.In fine powder transportation and treating processes, also easily produce dust pollution, and, a high proportion of fine powder like this has reduced utilization ratio the accretion stream cost of wheeling of raw material, therefore, in sweetening agent production system, integrated fine powder reuse technology has significant environmental protection and economic benefit to improve the utilization ratio of raw material lime.And domestic KR sweetening agent preparation system does not have integrated fine powder reuse technology substantially at present.
Therefore being necessary to design a kind of KR sweetening agent prepares integrated equipment and preparation method, to overcome the problems referred to above.
Summary of the invention
The object of the invention is to overcome the defect of prior art, provide the KR sweetening agent that a kind of raw material availability is high, Environmental indicators is excellent, advanced person is feasible, cost is low to prepare integrated equipment and preparation method.
The present invention is achieved in that
The invention provides a kind of KR sweetening agent and prepare integrated equipment, comprise raw material blow tank, the lower end of described raw material blow tank is provided with oscillating feeder under groove, under described groove, the discharge port of oscillating feeder is connected to raw material lift, the discharge port of described raw material lift is connected to raw material cabin, the lower end of described raw material cabin is provided with raw material oscillating feeder, the lower end of described raw material oscillating feeder is provided with conveyor, the discharge port of described conveyor is provided with alligator, and the discharge port of described alligator is connected to the front lift of mill, before described mill, the discharge port of lift is connected to middle hopper, the lower end of described middle hopper is provided with grinding machine oscillating feeder, the discharge port of described grinding machine oscillating feeder is connected to grinding machine, the discharge port of described grinding machine is connected to the rear lift of mill, after described mill, the discharge port of lift is connected to screening plant, described screening plant is connected to described grinding machine and simultaneously and mixes feeding device, described mixing feeding device is connected to facility for granulating, described facility for granulating is connected to the whole grain equipment of drying, the whole grain of described oven dry equipment connection is to crushing machine for granular materials, described crushing machine for granular materials is connected to the front lift of described mill, described screening plant also connects a finished product raw meal prepared from lime bucket, and described finished product raw meal prepared from lime bucket is connected to a two-tube agitator by a lime electric lock pneumatic device, one finished product Fluorspar Powder batch hopper is connected to described two-tube agitator by a fluorite electric lock pneumatic device.
Further, the discharge port of described two-tube agitator is connected to a finished product sweetening agent lift, and the discharge port of described finished product sweetening agent lift is connected to a finished product sweetening agent storehouse.
Further, described screening plant is straight line shaker or grading machine or whirlwind blanking device.
Further, after material sieves by described screening plant, granularity is that the material of 0.5～1.0mm enters described finished product raw meal prepared from lime bucket, and granularity is that the material below 0.5mm enters described mixing feeding device, and granularity is that material more than 1.0mm enters described grinding machine.
Further, described KR sweetening agent is prepared integrated equipment and is equipped with high-end programmable controller.
The present invention also provides a kind of preparation method of KR sweetening agent, comprise the following steps: step 1: active lime raw material is discharged into described raw material blow tank by automobile, under described groove, oscillating feeder enters described raw material lift again, finally entering described raw material cabin stores, wherein, need the raw material oscillating feeder of just broken raw material under described raw material cabin to enter enclosed conveyor, by described conveyor, be discharged into described alligator and carry out just broken; Step 2: the quickened lime after just fragmentation is delivered to described middle hopper through lift before described mill, quickened lime in described middle hopper is discharged into described grinding machine through described grinding machine oscillating feeder and carries out fine grinding, raw meal particle size after fine grinding is in 0～3mm scope, material after fine grinding enters described screening plant and sieves after described mill after lift, wherein, granularity is that material more than 1.0mm is oversize, need return to described grinding machine refaces, granularity is that the finished product materials of 0.5～1.0mm is finished product quickened lime, and it enters finished product raw meal prepared from lime bucket and waits for batching; Step 3: the granularity after screening is that the thin active lime powder below 0.5mm enters described mixing feeding device, through well-mixed material, entering described facility for granulating roll-in granulates, then through the whole grain of described oven dry equipment, dry, ellipsoid material after oven dry is broken through described crushing machine for granular materials, described pellet broken material via described mill after lift be delivered to described screening plant, again sieve; Step 4: finished product Fluorspar Powder and finished product quickened lime are carried out to fixed ratio batching by described lime electric lock pneumatic device, described fluorite electric lock pneumatic device respectively, and the material preparing is discharged into described two-tube agitator and mixes stirring, is formed into product sweetening agent.
The present invention has following beneficial effect:
Integrated equipment prepared by described KR sweetening agent and preparation method not only can be surely than producing KR sweetening agent, and quickened lime fine powder after quickened lime minus mesh or classification can be recycled, not only improved quickened lime raw material availability, and solved superfine active lime and need transport outward processing problem, reduce comprehensive cost prepared by KR sweetening agent simultaneously, reduced the pollution of ultrafine dust to environment.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The KR sweetening agent that Fig. 1 provides for the embodiment of the present invention is prepared the process flow sheet of integrated equipment;
The KR sweetening agent that Fig. 2 provides for the embodiment of the present invention is prepared the front view of integrated equipment;
The KR sweetening agent that Fig. 3 provides for the embodiment of the present invention is prepared the vertical view of integrated equipment;
The KR sweetening agent that Fig. 4 provides for the embodiment of the present invention is prepared the part sectional drawing of integrated equipment;
The KR sweetening agent that Fig. 5 provides for the embodiment of the present invention is prepared the part sectional drawing at another visual angle of integrated equipment.
Label declaration:
1-raw material blow tank; Oscillating feeder under 2-groove; 3-raw material lift; 4-raw material cabin; 5-raw material oscillating feeder; 6-conveyor; 7-alligator; Lift before 8-mill; 9-middle hopper; 10-grinding machine oscillating feeder; 11-grinding machine; Lift after 12-mill; 13-screening plant; 14-finished product Fluorspar Powder batch hopper; 15-finished product raw meal prepared from lime bucket; 16-lime electric lock pneumatic device; 17-fluorite electric lock pneumatic device; The two-tube agitator of 18-; 19-finished product sweetening agent lift; 20-finished product sweetening agent storehouse; 21-mixing feeding device; 22-facility for granulating; 23-is dried whole grain equipment; 24-crushing machine for granular materials.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making all other embodiment that obtain under creative work prerequisite, belong to the scope of protection of the invention.
As Fig. 1-Fig. 5, the embodiment of the present invention provides a kind of KR sweetening agent to prepare integrated equipment, comprise raw material blow tank 1, the lower end of described raw material blow tank 1 is provided with oscillating feeder 2 under groove, under described groove, the discharge port of oscillating feeder 2 is connected to raw material lift 3, the discharge port of described raw material lift 3 is connected to raw material cabin 4, the lower end of described raw material cabin 4 is provided with raw material oscillating feeder 5, the lower end of described raw material oscillating feeder 5 is provided with conveyor 6, the discharge port of described conveyor 6 is provided with alligator 7, the discharge port of described alligator 7 is connected to the front lift 8 of mill.Described conveyor 6 can be substituted by other handling equipments such as chain conveyor, scraper conveyor.
As Fig. 1-Fig. 5, before described mill, the discharge port of lift 8 is connected to middle hopper 9, the lower end of described middle hopper 9 is provided with grinding machine oscillating feeder 10, the discharge port of described grinding machine oscillating feeder 10 is connected to grinding machine 11, the discharge port of described grinding machine 11 is connected to the rear lift 12 of mill, and after described mill, the discharge port of lift 12 is connected to screening plant 13, and described screening plant 13 is straight line shaker or grading machine or whirlwind blanking device, in this preferred embodiment, described screening plant 13 adopts straight line shaker.
As Fig. 1-Fig. 5, described screening plant 13 is connected to described grinding machine 11 and simultaneously and mixes feeding device 21, described mixing feeding device 21 is connected to facility for granulating 22, described facility for granulating 22 is connected to the whole grain equipment 23 of drying, the whole grain of described oven dry equipment 23 is connected to crushing machine for granular materials 24, and described crushing machine for granular materials 24 is connected to the front lift 8 of described mill.Described screening plant 13 also connects a finished product raw meal prepared from lime bucket 15.Wherein, after material sieves by described screening plant 13, granularity is that the material of 0.5～1.0mm enters described finished product raw meal prepared from lime bucket 15, and granularity is that the material below 0.5mm enters described mixing feeding device 21, and granularity is that material more than 1.0mm enters described grinding machine 11.
As Fig. 1-Fig. 5, described finished product raw meal prepared from lime bucket 15 is connected to a two-tube agitator 18 by a lime electric lock pneumatic device 16.Also comprise that a finished product Fluorspar Powder batch hopper 14 is connected to described two-tube agitator 18 by a fluorite electric lock pneumatic device 17, the discharge port of described two-tube agitator 18 is first connected to a finished product sweetening agent lift 19, the discharge port of described finished product sweetening agent lift 19 is connected to a finished product sweetening agent storehouse 20, carries out the storage of finished product sweetening agent.
Before lift 12 after described raw material lift 3, described mill, described mill, lift 8 and described finished product sweetening agent lift 19 all can be by such as other vertical-lift equipment replacements such as bucket machines.
As Fig. 1-Fig. 5, in addition, described KR sweetening agent is prepared electrical control system that integrated equipment is equipped with for high-end programmable controller that can be to its interlocked control that links, described high-end programmable controller can record related process parameter and have statistical report form function, in this preferred embodiment, described high-end programmable controller is the high-end programmable controller of Siemens S7-400 type.
Described KR sweetening agent is prepared method flow that integrated equipment prepares sweetening agent as shown in Figure 1, as follows to its specific description:
Step 1: lime raw material is carried and first crushing system
If the granularity of lime raw material has reached 30～40mm, need just crushing system, if raw material granularity is below 10mm, do not need to carry out just fragmentation, this system can be reduced to raw material storage and delivery system.
Active lime raw material is discharged into described raw material blow tank 1 by automobile, then oscillating feeder 2 enters described raw material lift 3 under described groove, finally enters described raw material cabin 4 and stores.Wherein, need the raw material oscillating feeder 5 of just broken raw material under described raw material cabin 4 to enter enclosed conveyor 6, by described conveyor 6, be discharged into described alligator 7 and carry out just broken.
Step 2: finished product lime preparation system
Quickened lime after just fragmentation is delivered to described middle hopper 9 through lift 8 before described mill, quickened lime in described middle hopper 9 is discharged into described grinding machine 11 through described grinding machine oscillating feeder 10 and carries out fine grinding, raw meal particle size after fine grinding is in 0～3mm scope, wherein, the finished product materials that granularity is 0.5～1.0mm accounts for very big ratio.Material after fine grinding enters described straight line shaker and sieves after described mill after lift 12, described straight line shaker can change three stage material stage equipments into.Granularity is that the following material of 0.5mm is the lower ultra-fine material of sieve, and granularity is that material more than 1.0mm is oversize, need return to described grinding machine 11 to reface, and finished product quickened lime enters finished product raw meal prepared from lime bucket 15 and waits for batching.The above partition size value of defining is only an exemplary special case of this technique, can adjust according to process condition.
Step 3: after screening, lime powder is granulated, pellet is reorganized and outfit and crushing system
Thin active lime powder after screening (granularity is the material below 0.5mm) enters described mixing feeding device 21, in mixing process, can optionally add wet type caking agent, through well-mixed material, entering described facility for granulating 22 roll-ins granulates, pellet is 20 * 30 ellipsoid material, ellipsoid material is dried through the whole grain of described oven dry equipment 23, ellipsoid material after oven dry is through described crushing machine for granular materials 24 fragmentations, described pellet broken material via described mill after lift 12 be delivered to described straight line shaker, again sieve.
Step 4: finished product sweetening agent preparation system
In general, finished product Fluorspar Powder adopts outsourcing, packed finished product Fluorspar Powder is discharged into described finished product Fluorspar Powder batch hopper 14 by overhead traveling crane handling, it is fixed than batching that finished product Fluorspar Powder and finished product quickened lime are undertaken by described lime electric lock pneumatic device 16, described fluorite electric lock pneumatic device 17 respectively, proportion scale is generally 1:9, described lime electric lock pneumatic device 16, described fluorite electric lock pneumatic device 17 drive by servomotor speed governing, therefore can control and change proportion scale.The material preparing is discharged into described two-tube agitator 18 and mixes stirring, be formed into product sweetening agent, described two-tube agitator 18 also can change other mixing equipment into, and finished product sweetening agent is transported into described finished product sweetening agent storehouse 20 through described finished product sweetening agent lift 19 and stores.
Integrated equipment prepared by described KR sweetening agent and preparation method contains the accumulating of quickened lime raw material and coarse breaking, quickened lime fine grinding and screening, finished product quickened lime is mixed to form finished product sweetening agent than batching surely with finished product fluorite, the fragmentation of superfine active lime powder pressure ball is also returned to the technological processs such as quickened lime screening system, this process system not only can be surely than producing KR sweetening agent, and quickened lime fine powder after quickened lime minus mesh or classification can be recycled, not only improved quickened lime raw material availability, and solved superfine active lime and need transport outward processing problem, also reduced the comprehensive cost of preparation KR sweetening agent simultaneously, reduced the pollution of ultrafine dust to environment.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. a KR sweetening agent is prepared integrated equipment, it is characterized in that, comprise raw material blow tank, the lower end of described raw material blow tank is provided with oscillating feeder under groove, under described groove, the discharge port of oscillating feeder is connected to raw material lift, the discharge port of described raw material lift is connected to raw material cabin, the lower end of described raw material cabin is provided with raw material oscillating feeder, the lower end of described raw material oscillating feeder is provided with conveyor, the discharge port of described conveyor is provided with alligator, and the discharge port of described alligator is connected to the front lift of mill;
Before described mill, the discharge port of lift is connected to middle hopper, the lower end of described middle hopper is provided with grinding machine oscillating feeder, the discharge port of described grinding machine oscillating feeder is connected to grinding machine, the discharge port of described grinding machine is connected to the rear lift of mill, after described mill, the discharge port of lift is connected to screening plant, described screening plant is connected to described grinding machine and simultaneously and mixes feeding device, described mixing feeding device is connected to facility for granulating, described facility for granulating is connected to the whole grain equipment of drying, the whole grain of described oven dry equipment connection is to crushing machine for granular materials, described crushing machine for granular materials is connected to the front lift of described mill,
Described screening plant also connects a finished product raw meal prepared from lime bucket, and described finished product raw meal prepared from lime bucket is connected to a two-tube agitator by a lime electric lock pneumatic device;
One finished product Fluorspar Powder batch hopper is connected to described two-tube agitator by a fluorite electric lock pneumatic device.
2. KR sweetening agent as claimed in claim 1 is prepared integrated equipment, it is characterized in that: the discharge port of described two-tube agitator is connected to a finished product sweetening agent lift, and the discharge port of described finished product sweetening agent lift is connected to a finished product sweetening agent storehouse.
3. KR sweetening agent as claimed in claim 1 is prepared integrated equipment, it is characterized in that: described screening plant is straight line shaker or grading machine or whirlwind blanking device.
4. KR sweetening agent as claimed in claim 1 is prepared integrated equipment, it is characterized in that: after material sieves by described screening plant, granularity is that the material of 0.5～1.0mm enters described finished product raw meal prepared from lime bucket, granularity is that the material below 0.5mm enters described mixing feeding device, and granularity is that material more than 1.0mm enters described grinding machine.
5. KR sweetening agent as claimed in claim 1 is prepared integrated equipment, it is characterized in that: described KR sweetening agent is prepared integrated equipment and is equipped with high-end programmable controller.
6. the KR sweetening agent of employing as described in as arbitrary in claim 1-5 prepared the method that integrated equipment is prepared sweetening agent, it is characterized in that: comprise the following steps:
Step 1: active lime raw material is discharged into described raw material blow tank by automobile, under described groove, oscillating feeder enters described raw material lift again, finally entering described raw material cabin stores, wherein, need the raw material oscillating feeder of just broken raw material under described raw material cabin to enter enclosed conveyor, by described conveyor, be discharged into described alligator and carry out just broken;
Step 2: the quickened lime after just fragmentation is delivered to described middle hopper through lift before described mill, quickened lime in described middle hopper is discharged into described grinding machine through described grinding machine oscillating feeder and carries out fine grinding, raw meal particle size after fine grinding is in 0～3mm scope, material after fine grinding enters described screening plant and sieves after described mill after lift, wherein, granularity is that material more than 1.0mm is oversize, need return to described grinding machine refaces, granularity is that the finished product materials of 0.5～1.0mm is finished product quickened lime, and it enters finished product raw meal prepared from lime bucket and waits for batching;
Step 3: the granularity after screening is that the thin active lime powder below 0.5mm enters described mixing feeding device, through well-mixed material, entering described facility for granulating roll-in granulates, then through the whole grain of described oven dry equipment, dry, ellipsoid material after oven dry is broken through described crushing machine for granular materials, described pellet broken material via described mill after lift be delivered to described screening plant, again sieve;
Step 4: finished product Fluorspar Powder and finished product quickened lime are carried out to fixed ratio batching by described lime electric lock pneumatic device, described fluorite electric lock pneumatic device respectively, and the material preparing is discharged into described two-tube agitator and mixes stirring, is formed into product sweetening agent.
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| CN201410306178.9A CN104073584B (en) | 2014-07-01 | 2014-07-01 | KR desulfurizing agent prepares integrated equipment and preparation method |
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| CN201410306178.9A CN104073584B (en) | 2014-07-01 | 2014-07-01 | KR desulfurizing agent prepares integrated equipment and preparation method |
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| CN104384007A (en) * | 2014-11-12 | 2015-03-04 | 中冶焦耐工程技术有限公司 | Process and device for preparing lime powder for KR desulfurizing agent |
| CN110184418A (en) * | 2019-06-28 | 2019-08-30 | 张家港市永兴建材厂 | A kind of external desulfurzation agent preparation method |
| CN111659519A (en) * | 2020-06-29 | 2020-09-15 | 江苏沙钢集团有限公司 | KR desulfurizer circulating granulation method |
| CN113106183A (en) * | 2021-04-17 | 2021-07-13 | 乌海市包钢万腾钢铁有限责任公司 | Molten iron desulfurizer adding method for steelmaking |
| CN114425478A (en) * | 2022-01-25 | 2022-05-03 | 江苏沙钢集团有限公司 | Preparation system and method of KR desulfurizing agent |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114425478A (en) * | 2022-01-25 | 2022-05-03 | 江苏沙钢集团有限公司 | Preparation system and method of KR desulfurizing agent |
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| CN104073584B (en) | 2016-12-07 |
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