CN2439005Y - Rotary gas pulsation coal powder injection apparatus - Google Patents
Rotary gas pulsation coal powder injection apparatus Download PDFInfo
- Publication number
- CN2439005Y CN2439005Y CN 00218992 CN00218992U CN2439005Y CN 2439005 Y CN2439005 Y CN 2439005Y CN 00218992 CN00218992 CN 00218992 CN 00218992 U CN00218992 U CN 00218992U CN 2439005 Y CN2439005 Y CN 2439005Y
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- coal powder
- housing
- rotor
- powder injection
- radial direction
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Abstract
The utility model relates to a rotary air pulsation coal powder injection apparatus for a blast furnace used for casting steel by coal. The utility model comprises coal powder injection wheels with a coaxial sleeve tube structure, wherein an inner sleeve tube at the outer end of the coal powder injection wheel is communicated with a coal powder conveying pipe; an outer sleeve tube is communicated with an air or oxygen tube on which a rotary pulsed airflow generator is arranged. The utility model gives four kinds of structures of the rotary pulsed airflow generator. The utility model can increase the burning rate of the coal powder, save power consumption and reduce environmental pollution caused by the unburned coal powder of the blast furnace. The utility model has the advantages of simple structure, low cost and safe and convenient operation.
Description
The utility model relates to the coal powder injection device that a kind of metallurgical shaft furnace, particularly iron-smelting blast furnace are used, particularly a kind of rotation type air current pulsation coal powder injection device.
In the prior art, most of iron-smelting blast furnaces (also comprising metallurgical shaft furnaces such as cupola furnace, zinc metallurgy blast furnace) all adopt the structure of inserting coal spouting gun in belly pipe.Its coal powder injection device is the coal spouting gun that adopts the coaxial sleeve structure, and pipe is connected the coal dust transfer lime in the outer end of coal spouting gun, and outer eyelet thimble is connected the air or oxygen pipe.Its coal dust fails effectively to mix and incomplete combustion with hot blast after coal spouting gun outlet ejection, waste coal dust, contaminate environment.
The purpose of this utility model is to provide a kind of rotation type air current pulsation coal powder injection device, and coal dust is effectively mixed with hot blast in coal spouting gun outlet ejection back, improves coal combustion rate, energy efficient and protection environment.
For achieving the above object this practical employing following technical proposals:
A kind of rotation type air current pulsation coal powder injection device, the coal spouting gun that comprises the coaxial sleeve structure, the outer end inner sleeve of coal spouting gun is connected the coal dust transfer lime, and outer eyelet thimble is connected the air or oxygen pipe, it is characterized in that being equipped with on the air or oxygen pipe rotation impulse flow generator.
The structure of above-mentioned rotation impulse flow generator is: a rotor of housing inner chamber configuration that has air inlet/outlet, circumferentially uniform axially extending bore or radial direction through hole arranged on the rotor, and the air inlet/outlet on the housing is aimed at these axially extending bores or radial direction through hole center rotational trajectory circle.
Above-mentioned rotor can be designed as disc-shaped bodies and circumferential uniform axially extending bore, air inlet/outlet on the housing is arranged in line and is aimed at axially extending bore center rotational trajectory and justify, the rotating shaft of rotor is by the bearing supporting that is placed in the bearing support, and lower housing portion is fixedly connected on the bearing.
Above-mentioned rotor also can be designed as the short cylindrical body and circumferential uniform radial direction through hole, and the air inlet/outlet on the housing arranges in line and aim at radial direction through hole center rotational trajectory and justify that housing is made of box body and cover plate, and the rotating shaft of rotor is supported by bearing.Certainly, structure similarly is: rotor is designed to the long cylinder body and circumferentially uniform radial direction through hole of two rows is arranged, and has the air inlet/outlet of two pairs of parallel connections to become two straight line and aim at two row's radial direction through hole center rotational trajectory circles respectively on the housing.
Above-mentioned rotor can also be designed to the short cylindrical body and circumferential uniform radial direction through hole, and also have a central axial bore to be communicated with radial direction through hole, inlet mouth on the housing is aimed at radial direction through hole center rotational trajectory circle, and the air outlet centering adjustment axial opening on the housing, housing is made of box body and cover plate, and the rotating shaft of rotor is supported by bearing.
The utility model compared with prior art, have following conspicuous characteristics and advantage: the utility model is equipped with the rotation impulse flow generator on the air or oxygen pipe of connecting coal spouting gun, then air or oxygen feeds in the outer eyelet thimble of coal spouting gun in the air pulse mode, make its pressure and speed produce strong pulsation, coal dust is effectively mixed with hot blast in coal spouting gun outlet ejection back, and in belly pipe, air port and the district's perfect combustion of circling round, coal combustion rate can improve more than 4%, energy efficient reduces blast furnace exhaust pollution environment.The utility model provides the rotation impulse flow generator of multiple structure, in use, as long as change the rotating speed of its rotor, can change the gas frequency, is adjusted to the best frequency that is suitable for.The utility model is simple in structure, is easy to make, and cost is low, and is easy to use and safe and reliable.
The drawing of accompanying drawing is described as follows:
Fig. 1 is the structural representation of an embodiment of the utility model.
Fig. 2 is a kind of structural representation of rotation impulse flow generator.
Fig. 3 is the structural representation of another kind of rotation impulse flow generator.
Fig. 4 is the structural representation of the rotation impulse flow generator of structural evolution shown in Figure 3.
Fig. 5 is the structural representation of the third rotation impulse flow generator.
Fig. 6 is the structural representation of the rotation impulse flow generator of structural evolution shown in Figure 5.
An optimum implementation of the present utility model is: referring to Fig. 1, this rotation type air current pulsation coal powder injection device includes the coal spouting gun 2 of coaxial sleeve structure, the outer end inner sleeve 3 of coal spouting gun 2 is connected the coal dust transfer lime, and outer eyelet thimble 6 is connected air or oxygen pipe 4, and rotation impulse flow generator 5 is housed on the air or oxygen pipe 4.Rotation impulse flow generator 5 can adopt Fig. 2 or Fig. 3 or Fig. 4 or any rotation impulse flow generator shown in Figure 5.Coal dust and hot blast effectively mix the back in belly pipe 7, air port 1 and district's 8 perfect combustions of circling round.
The structure of rotation impulse flow generator shown in Figure 2 is: a rotor 10 of housing 9 inner chambers configuration that has air inlet/ outlet 11,12, rotor 10 is the circumferential uniform axially extending bore 13 of disc-shaped bodies, air inlet/ outlet 11,12 on the housing 9 is arranged in line and is aimed at axially extending bore 13 center rotational trajectories and justify, the rotating shaft 15 of rotor 10 is by bearing 16 supportings that are placed in the bearing support 17, and housing 9 bottoms are fixedly connected on the bearing 14.
The structure of rotation impulse flow generator shown in Figure 3 is: a rotor 10 of housing 9 inner chambers configuration that has air inlet/ outlet 11,12, rotor 10 is the circumferential uniform radial direction through hole 13 of short cylindrical body, air inlet/ outlet 11,12 on the housing 9 is arranged in line and is aimed at radial direction through hole 13 center rotational trajectories and justify, housing 9 is made of box body 19 and cover plate 8, and the rotating shaft 15 of rotor 10 is by bearing 16 supportings.
The structure of rotary pulsed flow generator shown in Figure 4 is same as shown in Figure 3 basically, difference is: rotor 10 is for the long cylinder body has circumferentially uniform radial direction through hole 13 of two rows, the air inlet/outlet 11 of two pairs of parallel connections, 12 one-tenths two straight line are arranged on the housing 9 and aims at two row's radial direction through hole, 13 center rotational trajectories respectively and justifies.
The structure of rotation impulse flow generator shown in Figure 5 is: a rotor 10 of housing 9 inner chambers configuration that has air inlet/ outlet 11,12, rotor 10 is the circumferential uniform radial direction through hole 13 of short cylindrical body, and also have a central axial bore 20 to be communicated with radial direction through hole 13, inlet mouth 11 on the housing 9 is aimed at radial direction through hole 13 center rotational trajectory circles, and the air outlet 12 centering adjustment axial openings 20 on the housing 9, housing 9 is made of box body 19 and cover plate 18, and the rotating shaft 15 of rotor 10 is by bearing 16 supportings.Fig. 6 illustrates the rotation impulse flow generator of similar Fig. 5 structure, is about to central axial bore 20 expansions on Fig. 5 rotor 10 and makes rotor 10 become cup shell, and inlet mouth on the housing 9 and air outlet are changed mutually.
Claims (6)
1. rotation type air current pulsation coal powder injection device, the coal powder injection wheel (2) that comprises the coaxial sleeve structure, the outer end inner sleeve (3) of coal powder injection wheel (2) is connected the coal dust transfer lime, and outer eyelet thimble (6) is connected air or oxygen pipe (4), it is characterized in that being equipped with on the air or oxygen pipe (4) rotation impulse flow generator (5).
2. rotation type air current pulsation coal powder injection device according to claim 1, the structure that it is characterized in that rotation impulse flow generator (5) is: housing (a 9) inner chamber configuration rotor (10) that has air inlet/outlet (11,12), have on the rotor (10) circumferentially all to uniform axially extending bore or radial direction through hole (13), the air inlet/outlet on the housing (9) (11,12) aims at these axially extending bores or radial direction through hole (13) center rotational trajectory is justified.
3. rotation type air current pulsation coal powder injection device according to claim 2, it is characterized in that rotor (10) is the circumferential uniform axially extending bore of disc-shaped bodies (13), air inlet/outlet on the housing (9) (11,12) is arranged in line and is aimed at axially extending bore (13) center rotational trajectory and justify, the rotating shaft (15) of rotor (10) is by bearing (16) supporting that is placed in the bearing support (17), and housing (9) bottom is fixedly connected on the bearing (14).
4. rotation type air current pulsation coal powder injection device according to claim 2, it is characterized in that rotor (10) is the circumferential uniform radial direction through hole of short cylindrical body (13), air inlet/outlet on the housing (9) (11,12) is arranged in line and is aimed at radial direction through hole (13) center rotational trajectory and justify, housing (9) is made of box body (19) and cover plate (18), and the rotating shaft (15) of rotor (10) is supported by bearing (16).
5. rotation type air current pulsation coal powder injection device according to claim 4, it is characterized in that rotor (10) for the long cylinder body has circumferentially uniform radial direction through hole (13) of two rows, has the air inlet/outlet (11,12) of two pairs of parallel connections to become two straight line and aim at two row's radial direction through hole (13) center rotational trajectory circles respectively on the housing.
6. rotation type air current pulsation coal powder injection device according to claim 2, it is characterized in that rotor (10) is the circumferential uniform radial direction through hole of short cylindrical body (13), and also have a central axial bore (20) to be communicated with radial direction through hole (13), inlet mouth (11) on the housing (9) is aimed at radial direction through hole (13) center rotational trajectory circle, and air outlet (12) the centering adjustment axial opening (20) on the housing (9), housing (9) is made of box (19) and cover plate (18), and the rotating shaft (15) of rotor (10) is supported by bearing (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00218992 CN2439005Y (en) | 2000-08-28 | 2000-08-28 | Rotary gas pulsation coal powder injection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00218992 CN2439005Y (en) | 2000-08-28 | 2000-08-28 | Rotary gas pulsation coal powder injection apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2439005Y true CN2439005Y (en) | 2001-07-11 |
Family
ID=33584246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00218992 Expired - Fee Related CN2439005Y (en) | 2000-08-28 | 2000-08-28 | Rotary gas pulsation coal powder injection apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2439005Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101270873B (en) * | 2007-03-23 | 2011-06-15 | 宝山钢铁股份有限公司 | Method and device for blowing breeze to pure oxygen smelting mobile filling bed smelting furnace |
| CN102966643A (en) * | 2012-11-22 | 2013-03-13 | 裕东（中山）机械工程有限公司 | Mechanical rotary type pulse gas generator |
| CN104060008A (en) * | 2013-06-14 | 2014-09-24 | 攀钢集团攀枝花钢铁研究院有限公司 | Blast furnace smelting method |
-
2000
- 2000-08-28 CN CN 00218992 patent/CN2439005Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101270873B (en) * | 2007-03-23 | 2011-06-15 | 宝山钢铁股份有限公司 | Method and device for blowing breeze to pure oxygen smelting mobile filling bed smelting furnace |
| CN102966643A (en) * | 2012-11-22 | 2013-03-13 | 裕东（中山）机械工程有限公司 | Mechanical rotary type pulse gas generator |
| CN102966643B (en) * | 2012-11-22 | 2015-06-17 | 裕东（中山）机械工程有限公司 | Mechanical rotary type pulse gas generator |
| CN104060008A (en) * | 2013-06-14 | 2014-09-24 | 攀钢集团攀枝花钢铁研究院有限公司 | Blast furnace smelting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |