CN202688339U - Pulverized coal distributor for blast furnace coal injection - Google Patents
Pulverized coal distributor for blast furnace coal injection Download PDFInfo
- Publication number
- CN202688339U CN202688339U CN 201220198040 CN201220198040U CN202688339U CN 202688339 U CN202688339 U CN 202688339U CN 201220198040 CN201220198040 CN 201220198040 CN 201220198040 U CN201220198040 U CN 201220198040U CN 202688339 U CN202688339 U CN 202688339U
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- CN
- China
- Prior art keywords
- distributor
- pulverized coal
- injection
- shell
- frustum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a pulverized coal distributor for blast furnace coal injection. The pulverized coal distributor comprises a distributor shell, an upper cover arranged at the upper end of the distributor shell and a flange plate fixed base arranged at the lower end of the distributor shell; the upper part of the distributor shell is of a frustum shape; the lower part of the distributor shell is of an inverted frustum shape; the frustum part at the upper end of the distributor shell is uniformly and peripherally provided with 12 distributor branch pipes; each distributor branch pipe and the outer wall of the frustum at the upper end of the distributor shell is at an angle of 85 to 90 degrees; and the diameter of an internal opening of each distributor branch pipe is 20 to 25mm. According to the pulverized coal distributor, pulverized coal is ensured to move forward in the distributor; and the position of a rapid cut-off valve on an injection pipeline is regulated and pulverized coal rapid cut-off valves (the number of the valves is the same as that of tuyeres) are additionally arranged on the injection branch pipes, so that the safety of the injection pipeline is ensured.
Description
Technical field
The utility model relates to a kind of pulverized coal injection pulverized coal distributor.
Background technology
The pulverized coal injection pulverized coal distributor is the important non-standard equipment of pulverized coal injection in blast furnace at present, be connected with the winding-up house steward before the divider, pass through the winding-up arm behind the divider, metallic hose links to each other with spray gun, lifting one's head of pulverized coal distributor is several identical with blast-furnace tuyere quantity, pulverized coal distributor is consumable accessory, the normal operation life-span is 6 months, it is excessive to be mainly reflected in the angle of respectively jetting between arm, coal dust is current not smooth in divider, coal dust distributes uneven in each arm simultaneously, it is uneven along the burning of body of heater circumferential direction to have affected blast furnace, can not guarantee the furnace condition anterograde behind the pulverized coal injection in blast furnace.
The utility model content
Technical problem to be solved in the utility model provides a kind of pulverized coal injection pulverized coal distributor.
The utility model adopts following technical scheme:
The utility model comprises distributor body, is arranged at the loam cake of distributor body upper end and the ring flange firm banking that is arranged at the distributor body lower end, described distributor body top is frustum, the bottom is the inversed taper platform shape, the even circumference of described distributor body upper end frustum section is provided with 12 divider arms, described divider arm and distributor body upper end frustum outer wall are 85～90, and the internal orifice diameter of described divider arm is 20-25mm.
Be provided with repid cut-off valve in the described divider arm.
Positively effect of the present utility model is as follows:
The utility model is divided equally 12 divider arms, and has increased the caliber of divider arm, divider is propped up bore be increased to 20～30mm; The utility model is adjusted angle between arm, and angle is contracted to 90 ° by 95 ° between the relative arm of divider, guarantees the direct motion of coal dust in divider; The position of the repid cut-off valve on the blowpipe road is joined in adjustment, installs coal dust repid cut-off valve (valve quantity is identical with inlet number) additional at the winding-up arm, guarantees the safety of winding-up pipeline.
Description of drawings
Accompanying drawing 1 is the utility model structural representation.
Embodiment
As shown in Figure 1, the ring flange firm banking 3 that the utility model comprises distributor body 1, is arranged at the loam cake 2 of distributor body 1 upper end and is arranged at distributor body 1 lower end, described distributor body 1 top is frustum, the bottom is the inversed taper platform shape, the even circumference of described distributor body 1 upper end frustum section is provided with 12 divider arms 4, described divider arm 4 is 85～90 with distributor body 1 upper end frustum outer wall, and the internal orifice diameter of described divider arm 4 is 20-25mm.Be provided with repid cut-off valve 5 in the described divider arm 4.
The utility model is divided equally 12 divider arms, and has increased the caliber of divider arm, divider is propped up bore be increased to 20～30mm; The utility model is adjusted angle between arm, and angle is contracted to about 90 ° by 95 ° between the relative arm of divider, guarantees the direct motion of coal dust in divider; The position of the repid cut-off valve on the blowpipe road is joined in adjustment, install coal dust repid cut-off valve (valve quantity is identical with inlet number) additional at the winding-up arm, guarantee the safety of winding-up pipeline, the utlity model has good distributing uniformity and wear resistance, also guarantee the stopping property of whole equipment, should establish switching valve on the breeze blowing arm behind the pulverized coal distributor, when upstream pressure is reduced to when being lower than setup pressure value, the coal powder injection path cuts off and opens by-pass line gas automatically.Described divider loam cake is blind plate.Lower flange is linked to each other with the coal powder injection house steward by flange, owing to be coal dust and gaseous mixture with certain pressure in the coal powder injection house steward, divider is not established gas interface.
Claims (2)
1. pulverized coal injection pulverized coal distributor, it is characterized in that it comprises distributor body (1), be arranged at the loam cake (2) of distributor body (1) upper end and the ring flange firm banking (3) that is arranged at distributor body (1) lower end, described distributor body (1) top is frustum, the bottom is the inversed taper platform shape, the even circumference of described distributor body (1) upper end frustum section is provided with 12 divider arms (4), described divider arm (4) is 85～90 with distributor body (1) upper end frustum outer wall, and the internal orifice diameter of described divider arm (4) is 20-25mm.
2. pulverized coal injection pulverized coal distributor according to claim 1 is characterized in that being provided with in the described divider arm (4) repid cut-off valve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220198040 CN202688339U (en) | 2012-05-06 | 2012-05-06 | Pulverized coal distributor for blast furnace coal injection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220198040 CN202688339U (en) | 2012-05-06 | 2012-05-06 | Pulverized coal distributor for blast furnace coal injection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202688339U true CN202688339U (en) | 2013-01-23 |
Family
ID=47543986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220198040 Expired - Fee Related CN202688339U (en) | 2012-05-06 | 2012-05-06 | Pulverized coal distributor for blast furnace coal injection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202688339U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103484583A (en) * | 2013-09-11 | 2014-01-01 | 马钢(集团)控股有限公司 | Injection equipment for blast furnace in metallurgical industry |
| CN105737188A (en) * | 2016-04-22 | 2016-07-06 | 中冶华天南京工程技术有限公司 | Fluidized powder multi-branch quantitative distribution and stable blowing system |
| CN111349470A (en) * | 2018-12-24 | 2020-06-30 | 国家能源投资集团有限责任公司 | Burner and gasification furnace with same |
-
2012
- 2012-05-06 CN CN 201220198040 patent/CN202688339U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103484583A (en) * | 2013-09-11 | 2014-01-01 | 马钢(集团)控股有限公司 | Injection equipment for blast furnace in metallurgical industry |
| CN105737188A (en) * | 2016-04-22 | 2016-07-06 | 中冶华天南京工程技术有限公司 | Fluidized powder multi-branch quantitative distribution and stable blowing system |
| CN111349470A (en) * | 2018-12-24 | 2020-06-30 | 国家能源投资集团有限责任公司 | Burner and gasification furnace with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20180506 |