CN2900544Y - Coal powder bin for blast furnace spray coal - Google Patents
Coal powder bin for blast furnace spray coal Download PDFInfo
- Publication number
- CN2900544Y CN2900544Y CN 200620018303 CN200620018303U CN2900544Y CN 2900544 Y CN2900544 Y CN 2900544Y CN 200620018303 CN200620018303 CN 200620018303 CN 200620018303 U CN200620018303 U CN 200620018303U CN 2900544 Y CN2900544 Y CN 2900544Y
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- China
- Prior art keywords
- pulverized coal
- coal bin
- bin
- injection
- warehouse
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Abstract
The utility model discloses a coal powder injection barn for blast furnace, comprising a cylinder barn with a cover at the top. A coal powder inlet orifice is arranged on the cover of the barn. The barn is conoid with a cylinder body built-in. The top of the cylinder barn is upwards. The lower cap of the barn is orbicular and connects with the cylinder barn and the conoid barn. A plurality of coal power discharge holes are installed on the bottom cap of the barn. A plurality of inerting devices are installed at the bottom cap. A plurality of coal power intermittent type fluidization equipments are arranged on.the side wall of the conoid barn. The utility model makes the coal supplement to several blast furnace at synchronously possible. And one coal powder blowing station for several blast furnaces in steel factories is available, thereby a higher practical effect can be achieved.
Description
Technical field
The utility model relates to a kind of pulverized coal injection Pulverized Coal Bin of field of metallurgy, particularly relates to a kind of circular pulverized coal injection Pulverized Coal Bin with many vertical discharge openings.
Background technology
Pulverized coal injection is to begin the ironmaking new technology that large-scale application is produced in Iron And Steel Industry the sixties in 20th century.Along with problems such as oil crisis, environmental protection and coking coal resource worsening shortages, pulverized coal injection has been not only the important means that blast furnace is adjusted, still remedies the insufficient major measure of coke simultaneously.With regard to world wide, pulverized coal injection has become the inexorable trend of blast-furnace technique development.
Please participate in shown in Figure 4ly, be prior art Pulverized Coal Bin structural representation.It mainly comprises: superposed cylinder warehouse 2, be positioned at the taper warehouse 3 of bottom, coal dust fluidising chamber 4 and coal dust discharge port 5 are installed in the bottom of taper warehouse 3.Cylinder warehouse 2 is provided with Pulverized Coal Bin storehouse top cover 1, and storehouse top cover 1 is provided with coal dust opening for feed 11.The side of taper warehouse 3 is provided with hand hole 31, goes out to be provided with coal dust fluidisation plate 41 in the handing-over of taper warehouse 3 and fluidising chamber 4.On the sidewall of fluidising chamber, be provided with fluidized gas inlet 42.Coal dust enters from opening for feed 11, is stored in the Pulverized Coal Bin (top cylinder warehouse 2, lower taper warehouse 3), and when unloading coal dust, N
2Enter coal dust fluidising chamber 4 from fluidized gas inlet 42, through 41 pairs of coal dust fluidisations of coal dust fluidisation plate, coal dust after the fluidisation enters the winding-up jar by coal dust discharge port 5, this shows that above-mentioned existing Pulverized Coal Bin only is provided with a discharge port, and its load is subject to significant restrictions.
In the prior art, the Pulverized Coal Bin quantity in the bf coal injection system is determined according to blast furnace.The Pulverized Coal Bin made from prior art, in China, blast furnace is with a Pulverized Coal Bin, even blast furnace is with two Pulverized Coal Bin.And in the external bf coal injection system, the Pulverized Coal Bin of a prior art is at most for two pulverized coal injections.
So, in a large-scale ironmaking enterprise, will there be the Pulverized Coal Bin of One's name is legion, so, must be between the Pulverized Coal Bin or between the different pulverized coal preparation systems coal dust is set and has bad luck facility, like this, just increase the excessive link of coal dust, increased unsafe factors such as contaminate environment and spontaneous combustion of pulverized coal.
So, be necessary to improve the supply capacity of single Pulverized Coal Bin to blast furnace, in large-scale ironmaking enterprise, reduce the quantity of Pulverized Coal Bin as far as possible.So, just need improve existing Pulverized Coal Bin structure.
Summary of the invention
The purpose of this utility model is, overcomes the defective that existing pulverized coal injection Pulverized Coal Bin exists, and is to make them can be to a plurality of blast furnace coal supplies and a kind of pulverized coal injection Pulverized Coal Bin of novel texture, technical problem to be solved are provided, thereby is suitable for practicality more.
The purpose of this utility model and to solve its technical problem be to adopt following technical scheme to realize.According to a kind of pulverized coal injection Pulverized Coal Bin that the utility model proposes, it comprises: cylinder warehouse, its top are provided with Pulverized Coal Bin storehouse top cover, and the storehouse top cover is provided with the coal dust opening for feed; Conical warehouse, it is built in the cylinder warehouse, and the top of this taper shape warehouse is upwards; The Pulverized Coal Bin bottom, it is connected in cylinder warehouse and conical warehouse in the form of a ring; Several coal dust discharge ports are arranged on the Pulverized Coal Bin bottom.
The purpose of this utility model and solve its technical problem and also can adopt following technical measures further to realize.
Aforesaid pulverized coal injection Pulverized Coal Bin, wherein said Pulverized Coal Bin bottom are provided with several Pulverized Coal Bin bottom inerting units.
Aforesaid pulverized coal injection Pulverized Coal Bin, wherein said Pulverized Coal Bin bottom inerting unit is provided with the gas flow operating device.
Aforesaid pulverized coal injection Pulverized Coal Bin, the sidewall of wherein said conical warehouse are provided with several coal dust point type fluidisation devices.
Aforesaid pulverized coal injection Pulverized Coal Bin, wherein said coal dust point type fluidisation device is provided with the gas flow operating device.
Aforesaid pulverized coal injection Pulverized Coal Bin, the decoration form that wherein said several coal dust point type fluidisation devices adopt subregion, layering to be provided with.
Aforesaid pulverized coal injection Pulverized Coal Bin, the sidewall bottom of wherein said conical warehouse is provided with several fluidized gas inlets, is connected in the fluidized gas pipeline in the Pulverized Coal Bin outside, and in Pulverized Coal Bin inside, above-mentioned fluidized gas inlet is connected in coal dust fluidisation plate.
Aforesaid pulverized coal injection Pulverized Coal Bin, wherein said coal dust fluidisation plate is tabular and offers several perforates, is used for the discharging jet gasification.
Aforesaid pulverized coal injection Pulverized Coal Bin also is provided with flow-control equipment before the wherein said fluidized gas inlet, with control fluidizing state.
Aforesaid pulverized coal injection Pulverized Coal Bin, the quantity of wherein said coal dust discharge port are 2-20.
The utility model compared with prior art has tangible advantage and beneficial effect.By above technical scheme as can be known, major technique of the present utility model thes contents are as follows: the Pulverized Coal Bin structure is that cylinder combines with built-in circular cone; Pulverized Coal Bin adopts multiple fluidization technique: adopt on the inboard warehouse subregion, layering that point type fluidisation device is set and carry out the coal dust fluidisation, or adopt the detachable board-like fluidisation device of installing; According to breeze blowing jar needs, control the fluidisation air valve in order; Inerting unit is set: Pulverized Coal Bin bottom inerting unit adjustable gas flow at the bottom of the storehouse.
Via as can be known above-mentioned, the utility model discloses a kind of circular Pulverized Coal Bin technology of a plurality of vertical discharge openings, this technology is a kind of equipment that blast furnace PCI technology is optimized that is used for, and can make the compact more practicality of coal spraying process flow process, eliminate at a plurality of Pulverized Coal Bin coal dusts and distribute links; Reduce the maintenance of equipment amount, the basic guarantee of blast furnace continous-stable coal powder injection is provided.Compared with the prior art, maintenance of the equipment is convenient, adapts to widely, is particularly suitable for having the build together design at a breeze blowing station of a plurality of blast furnaces to having the shaped steel ironworks now.
By technique scheme, the utility model pulverized coal injection Pulverized Coal Bin can realize installing under the Pulverized Coal Bin many cover injection systems, and adopt the segmentation fluidization technique of Pulverized Coal Bin, it can reach suitable technical progress and practicality, and have extensive utility value on the industry, it has following advantage at least:
1, the utility model pulverized coal injection Pulverized Coal Bin is simple in structure, the coal spraying process flow process is compact more practical, manufacturing cost reduces relatively, thereby can significantly reduce cost, increase economic efficiency, jar can be as 8 winding-ups are set below the Pulverized Coal Bin to all the people present's pulverized coal injection in blast furnace, simultaneously can save the coal blending facility on the Pulverized Coal Bin, on practicality of using and cost benefit, it is required to meet industry development really fully, quite has industrial utilization.
2, the utility model pulverized coal injection Pulverized Coal Bin can be eliminated existing hidden danger at a plurality of Pulverized Coal Bin coal dusts distribution links place spontaneous combustion of pulverized coal, and reduce the maintenance of equipment amount, for providing assurance to the coal powder injection of blast furnace continous-stable; Simultaneously, can reduce the excessive link of coal dust, help environmental protection.
3, the utility model pulverized coal injection Pulverized Coal Bin can reduce equipment maintenance cost, reduces the production cost of steel-making enterprise.
In sum, the pulverized coal injection Pulverized Coal Bin of the utility model special construction, it has above-mentioned many advantages and practical value, and in same category of device, do not see have similar structure design to publish or use and really genus innovation, no matter it all has bigger improvement on the structure of equipment or function, have large improvement technically, and produced handy and practical effect, and more existing pulverized coal injection Pulverized Coal Bin has the multinomial effect of enhancement, thereby be suitable for practicality more, and have the extensive utility value of industry, really be a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technique means of the present utility model, and can be implemented according to the content of specification sheets, and for above-mentioned and other purposes, feature and advantage of the present utility model can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the utility model pulverized coal injection Pulverized Coal Bin one preferable structural representation of implementing profit.
Fig. 2 is another preferable structural representation of implementing profit of the utility model pulverized coal injection Pulverized Coal Bin.
Fig. 3 is the partial enlarged drawing of coal dust fluidisation plate.
Fig. 4 is a prior art Pulverized Coal Bin structural representation.
Embodiment
For further setting forth the utility model is to reach technique means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, to according to its embodiment of pulverized coal injection Pulverized Coal Bin, structure, feature and the effect thereof that the utility model proposes, describe in detail as after.
See also shown in Figure 1ly, being that pulverized coal injection Pulverized Coal Bin of the present utility model is preferable implements sharp structural representation.Wherein mainly be made of outer cylinder warehouse 2 and built-in conical warehouse 3, be provided with Pulverized Coal Bin storehouse top cover 1 on the top of cylinder warehouse 2, storehouse top cover 1 is provided with coal dust opening for feed 11.Inwardly be provided with the conical warehouse 3 that the top makes progress in the bottom of cylinder warehouse 2, the bottom surface diameter of its conical warehouse 3 is less than the bottom surface diameter of cylinder warehouse 2, thus formation cyclic Pulverized Coal Bin bottom 4.Alternate several Pulverized Coal Bin bottom inerting unit 41 and several coal dust discharge ports 42 that are provided with on this Pulverized Coal Bin bottom 4.The quantity of coal dust discharge port 42 decide according to winding-up jar quantity, for example is 2-20 or more a plurality of, can be to all the people present's pulverized coal injection in blast furnace as 8 winding-up jars being set below the Pulverized Coal Bin.When ordinary production, for reducing the oxygen content in the Pulverized Coal Bin, Pulverized Coal Bin bottom inerting unit 41 is used for feeding rare gas element, for example N in Pulverized Coal Bin
2, CO
2Deng non-flammable gas.Each Pulverized Coal Bin bottom inerting unit 41 all is provided with the gas flow operating device, is used for the flow of pilot-gas.42 of coal dust discharge ports are to be used to draw off coal dust.On the sidewall of conical warehouse 3, be provided with several coal dust point type fluidisation devices 31, be used for to inner gas, the normally N of feeding of Pulverized Coal Bin
2, the coal dust in the storehouse is carried out fluidisation.Each coal dust point type fluidisation device 31 is provided with the gas flow operating device.Several coal dust point type fluidisation devices 31, the decoration form that adopts subregion, layering to be provided with.
See also shown in Figure 2, be pulverized coal injection Pulverized Coal Bin of the present utility model another preferablely implement sharp structural representation.Be that with a last embodiment difference present embodiment adopts dismountable board-like fluidisation device on fluidization technique.Be provided with several fluidized gas inlets 52 on the sidewall bottom of conical warehouse 3, be connected in fluidized gas pipeline 51 in the Pulverized Coal Bin outside, in Pulverized Coal Bin inside, above-mentioned fluidized gas inlet 52 is connected in coal dust fluidisation plate 53.Seeing also shown in Figure 3ly, is the local enlarged diagram of coal dust fluidisation plate.This coal dust fluidisation plate is tabular and offers several perforates, is used for the discharging jet gasification.Before each fluidized gas inlet, also be provided with flow-control equipment, with control fluidizing state.In use, coal dust enters from opening for feed 11, is stored in the Pulverized Coal Bin, when unloading coal dust, from fluidized gas inlet 52 N that enter
2Coal dust is carried out fluidisation, and the coal dust after the fluidisation enters the winding-up jar by coal dust discharge port 42.
Via as can be known above-mentioned, the utility model discloses a kind of circular Pulverized Coal Bin technology of a plurality of vertical discharge openings, this technology is a kind of equipment that blast furnace PCI technology is optimized that is used for, and can make the compact more practicality of coal spraying process flow process, eliminate at a plurality of Pulverized Coal Bin coal dusts and distribute links; Reduce the maintenance of equipment amount, the basic guarantee of blast furnace continous-stable coal powder injection is provided.Compared with the prior art, maintenance of the equipment is convenient, adapts to widely, is particularly suitable for having the design at a breeze blowing station of building together of a plurality of blast furnaces to having the shaped steel ironworks now, thereby is suitable for practicality more.
Application of the present utility model can reduce winding-up workshop factory building height greatly; Reduce some technology coal dust handling equipments, as worm conveyor, turning plate valve, air locking device, closed pulverized coal sieve etc.; Reduce the O that blowing bituminous coal is used
2, the CO analyzing and testing is counted and equipment such as powder storehouse weighing.Aspect safety and environmental protection, can reduce pulverized bituminous coal resident in equipment, reduce the hidden danger of spontaneous combustion and also eliminate the diffusion of coal dust to external environment.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, though the utility model discloses as above with preferred embodiment, any those skilled in the art, in not breaking away from the technical solutions of the utility model scope, when the method that can utilize above-mentioned announcement and technology contents are made a little change or be modified to the equivalent embodiment of equivalent variations, but every content that does not break away from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.
Claims (10)
1, a kind of pulverized coal injection Pulverized Coal Bin is characterized in that it comprises:
Cylinder warehouse, its top are provided with Pulverized Coal Bin storehouse top cover, and the storehouse top cover is provided with the coal dust opening for feed;
Conical warehouse, it is built in the cylinder warehouse, and the top of this taper shape warehouse is upwards;
The Pulverized Coal Bin bottom, it is connected in cylinder warehouse and conical warehouse in the form of a ring;
Several coal dust discharge ports are arranged on the Pulverized Coal Bin bottom.
2, pulverized coal injection Pulverized Coal Bin according to claim 1 is characterized in that wherein said Pulverized Coal Bin bottom is provided with several Pulverized Coal Bin bottom inerting units.
3, pulverized coal injection Pulverized Coal Bin according to claim 2 is characterized in that wherein said Pulverized Coal Bin bottom inerting unit is provided with the gas flow operating device.
4,, it is characterized in that the sidewall of wherein said conical warehouse is provided with several coal dust point type fluidisation devices according to each described pulverized coal injection Pulverized Coal Bin of claim 1-3.
5, pulverized coal injection Pulverized Coal Bin according to claim 4 is characterized in that wherein said coal dust point type fluidisation device is provided with the gas flow operating device.
6, pulverized coal injection Pulverized Coal Bin according to claim 5 is characterized in that the decoration form that wherein said several coal dust point type fluidisation devices adopt subregion, layering to be provided with.
7, pulverized coal injection Pulverized Coal Bin according to claim 1, the sidewall bottom that it is characterized in that wherein said conical warehouse is provided with several fluidized gas inlets, be connected in the fluidized gas pipeline in the Pulverized Coal Bin outside, in Pulverized Coal Bin inside, above-mentioned fluidized gas inlet is connected in coal dust fluidisation plate.
8, pulverized coal injection Pulverized Coal Bin according to claim 7 is characterized in that wherein said coal dust fluidisation plate is tabular and offers several perforates, is used for the discharging jet gasification.
9, pulverized coal injection Pulverized Coal Bin according to claim 9 is characterized in that also being provided with flow-control equipment before the wherein said fluidized gas inlet, with control fluidizing state.
10, according to the described pulverized coal injection Pulverized Coal Bin of each claim among claim 1-3 and the 5-9, the quantity that it is characterized in that wherein said coal dust discharge port is 2-20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620018303 CN2900544Y (en) | 2006-03-24 | 2006-03-24 | Coal powder bin for blast furnace spray coal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620018303 CN2900544Y (en) | 2006-03-24 | 2006-03-24 | Coal powder bin for blast furnace spray coal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2900544Y true CN2900544Y (en) | 2007-05-16 |
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ID=38084706
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620018303 Expired - Fee Related CN2900544Y (en) | 2006-03-24 | 2006-03-24 | Coal powder bin for blast furnace spray coal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2900544Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103625803A (en) * | 2013-12-13 | 2014-03-12 | 徐州中矿奥特麦科技有限公司 | Full inerting protection device of shared wall cylindrical silo and protection method |
| CN104771852A (en) * | 2015-04-03 | 2015-07-15 | 煤炭科学技术研究院有限公司 | Pulverized coal tank inert gas protective device and application method thereof |
-
2006
- 2006-03-24 CN CN 200620018303 patent/CN2900544Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103625803A (en) * | 2013-12-13 | 2014-03-12 | 徐州中矿奥特麦科技有限公司 | Full inerting protection device of shared wall cylindrical silo and protection method |
| CN103625803B (en) * | 2013-12-13 | 2016-03-23 | 徐州中矿奥特麦科技有限公司 | The full inertia protection device of wall silo altogether |
| CN104771852A (en) * | 2015-04-03 | 2015-07-15 | 煤炭科学技术研究院有限公司 | Pulverized coal tank inert gas protective device and application method thereof |
| CN104771852B (en) * | 2015-04-03 | 2018-07-24 | 煤科院节能技术有限公司 | A kind of coal dust pot inert gas protection device and its application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Beijing CERI CCO Technology Corp. Assignor: Zhongye Jingcheng Engineering Technology Co., Ltd. Contract record no.: 2013110000034 Denomination of utility model: Coal powder bin for blast furnace spray coal Granted publication date: 20070516 License type: Exclusive License Record date: 20130712 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070516 Termination date: 20140324 |