CN201358258Y - Coal dust distributor used for blast furnace injection - Google Patents
Coal dust distributor used for blast furnace injection Download PDFInfo
- Publication number
- CN201358258Y CN201358258Y CNU2009201431080U CN200920143108U CN201358258Y CN 201358258 Y CN201358258 Y CN 201358258Y CN U2009201431080 U CNU2009201431080 U CN U2009201431080U CN 200920143108 U CN200920143108 U CN 200920143108U CN 201358258 Y CN201358258 Y CN 201358258Y
- Authority
- CN
- China
- Prior art keywords
- truncated cone
- shaped shell
- branch
- coal dust
- round table
- 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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- Blast Furnaces (AREA)
Abstract
The utility model discloses a coal dust distributor used for blast furnace injection, which comprises a distributive aspect (6) and distribution branch pipes (3); the upper part of the distributive aspect (6) is provided with a top cover (4) and is also provided with a round table-shaped case (1) with a cavity; the distributive aspect (6) is embedded in the round table-shaped case (1); the distributive aspect (6) is evenly distributed with n distributing holes (10) along the peripheral direction thereof; the round table-shaped case (1) is provided with hole channels (11) communicated with the distributing holes (10) along the peripheral direction thereof; the distribution branch pipes (3) are inserted in the hole channels (11) of the round table-shaped case (1) and are compressed and fixed with the distributive aspect (6) through bite type fittings (2); and the surfaces of the cavity of the round table-shaped case (1), the distribution branch pipes (3) and the distributive aspect (6), which are contacted with the coal dust are respectively provided with a wear-resistant ceramic lining (12). The coal dust distributor has simple manufacture and installation, convenient assembly and disassembly, long service life, easy replacement of vulnerable parts and uniform distribution, and is applicable to various blast furnaces including large-sized, medium-sized and small-sized blast furnaces.
Description
Technical field
The utility model belongs to pulverulent material conveying, distribution technique field, is specifically related to a kind of pulverized coal distributor that is used for pulverized coal injection in blast furnace.
Background technology
Blast furnace generally is to be carrier with nitrogen or pressurized air when coal injection, and coal dust is imported pulverized coal distributor by defeated coal house steward, after the divider uniformly distributing, coal dust is transported to each air port of blast furnace by defeated coal arm.Pulverized coal injection requires coal dust distributed uniform, accurate in pulverized coal distributor.
The existing multiple pattern of pulverized coal distributor in the prior art field, but all have some shortcomings on the whole:, distribute that big, the logical coal amount of error is low, discharge is few, complex structure etc.At these shortcomings, Chinese patent specification sheets 200420095533.4 discloses a kind of pulverized coal distributor, the composition of this divider is in minute part central authorities conical deflector to be housed, and the dual-side in conical deflector cross section is a camber line shape, though improved assignment accuracy, but there is complex structure in this divider, processing and the big shortcoming of assembling difficulty.Chinese patent specification sheets 200620047900.2 discloses a kind of bottle of formula divider in addition, and the branch part of this divider is one to be inverted doleiform cavity and to divide part, though this divider has adapted to big logical coal amount, one-piece construction is decreased parts and can't be changed.
The utility model content
The purpose of this utility model is to overcome the shortcoming of pulverized coal distributor in the prior art, provide a kind of simple in structure, be easy to change, the pulverized coal distributor of work-ing life, logical coal amount height and distributed uniform.
For solving the problems of the technologies described above, pulverized coal distributor of the present utility model comprises branch part and dispensing branch, divides part top to be provided with top cover, and its structural feature is: it also is provided with the truncated cone-shaped shell of a band cavity, divides part to embed in the truncated cone-shaped body skin; Divide part uniform distribution n dispensing orifice along the circumferential direction, along the circumferential direction be provided with the duct that communicates with dispensing orifice at the truncated cone-shaped shell; Be fixed with dividing part by the bite type fittings body in the duct of the slotting people's truncated cone-shaped shell of dispensing branch.
Described top cover compresses branch part and truncated cone-shaped shell and passes through bolting.
Be provided with the wear-resistant ceramic lining on cavity in the truncated cone-shaped shell, dispensing branch and branch part three and the coal dust contact surface.
The utility model structure compared with prior art its advantageous effect is as follows:
1, because the branch part is independently parts, is located between truncated cone-shaped shell and the top cover, is easy to processing, assembling and replacing;
2, because dispensing branch is inserted in the duct of people's truncated cone-shaped shell, and be fixed with dividing part, connect simple and convenient by the bite type fittings body.
3, on truncated cone-shaped shell, dispensing branch and branch part three and coal dust contact surface, be provided with wear-resistant ceramic lining, the work-ing life of having improved divider.
Description of drawings
Fig. 1 is the sectional view of the utility model pulverized coal distributor
Fig. 2 is the vertical view of the utility model pulverized coal distributor shown in Figure 1
Embodiment
As shown in Figure 1, 2, the utility model mainly comprises top cover 4, divides part 6, truncated cone-shaped shell 1 and dispensing branch 3, divides part 6 to embed in the truncated cone-shaped body skiies 1, and top cover 4 compresses branch part 6 and truncated cone-shaped shell and by bolt 9 this three fixed; Be provided with handle 7 above the top cover 4, by steady brace 8 location, easy accessibility also can be guaranteed assembly precision between top cover 4 and the branch part 6.Be respectively equipped with O RunddichtringO 5a, 5b and 5c to play sealing function at their contact surface.Divide part 6 uniform distribution n (14～40) dispensing orifice 11 (dispensing orifice 11 quantity are 30 in the present embodiment) along the circumferential direction, along the circumferential direction be provided with the duct 11 that communicates with dispensing orifice 10 at truncated cone-shaped shell 1; Dispensing branch 3 is inserted in the duct 11 of people's truncated cone-shaped shells 1, and is fixed with dividing part 6 by bite type fittings body 2, and bite type fittings body 2 and truncated cone-shaped shell 1 are connected and fixed by taper thread.Divide the corresponding one by one level of dispensing orifice 10, dispensing branch 3, bite type fittings body 2 of part 6 to communicate.Be provided with wear-resistant ceramic lining 12 on cavity in truncated cone-shaped shell 1, dispensing branch 3 and branch part 6 threes and the coal dust contact surface, to improve the work-ing life of divider.
During use, coal dust delivery manifold and flange 13 are welded together, be fixed together by bolt and pulverized coal distributor.Breeze airflow enters divider, along dispensing orifice 10, dispensing branch 3,2 ejections of bite type fittings body of minute part 6.The utility model is simple in structure, long service life, and easy accessibility is beneficial to ordinary maintenance and safeguards, and the assignment accuracy height, applicable to various large, medium and small blast furnaces.
Claims (4)
1, a kind of pulverized coal distributor that is used for blast furnace blowing, comprise branch part (6) and dispensing branch (3), divide part (6) top to be provided with top cover (4), it is characterized in that: it also is provided with the truncated cone-shaped shell (1) of a band cavity, divides part (6) to embed in the truncated cone-shaped body skin (1); Divide part (6) uniform distribution n dispensing orifice (10) along the circumferential direction, along the circumferential direction be provided with the duct (11) that communicates with dispensing orifice (10) at truncated cone-shaped shell (1); Be fixed with dividing part (6) by bite type fittings body (2) in the duct (11) of the slotting people's truncated cone-shaped shell (1) of dispensing branch (3).
2, pulverized coal distributor according to claim 1 is characterized in that: described top cover (4) compresses branch part (6) and truncated cone-shaped shell (1) and fixing by bolt (9).
3, pulverized coal distributor according to claim 1 is characterized in that: described bite type fittings body (2) is connected and fixed by taper thread with truncated cone-shaped shell (1).
4, pulverized coal distributor according to claim 1 is characterized in that: be provided with wear-resistant ceramic lining (12) on the cavity in described truncated cone-shaped shell (1), dispensing branch (3) and branch part (6) three and the coal dust contact surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201431080U CN201358258Y (en) | 2009-02-23 | 2009-02-23 | Coal dust distributor used for blast furnace injection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201431080U CN201358258Y (en) | 2009-02-23 | 2009-02-23 | Coal dust distributor used for blast furnace injection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201358258Y true CN201358258Y (en) | 2009-12-09 |
Family
ID=41424019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201431080U Expired - Fee Related CN201358258Y (en) | 2009-02-23 | 2009-02-23 | Coal dust distributor used for blast furnace injection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201358258Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104456602A (en) * | 2014-11-12 | 2015-03-25 | 宁夏嘉翔自控技术有限公司 | Pulverized coal distributor of pulverized coal burner of magnesium metal reduction furnace |
| CN109536661A (en) * | 2018-12-19 | 2019-03-29 | 包头钢铁（集团）有限责任公司 | A kind of breeze blowing distributor |
-
2009
- 2009-02-23 CN CNU2009201431080U patent/CN201358258Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104456602A (en) * | 2014-11-12 | 2015-03-25 | 宁夏嘉翔自控技术有限公司 | Pulverized coal distributor of pulverized coal burner of magnesium metal reduction furnace |
| CN109536661A (en) * | 2018-12-19 | 2019-03-29 | 包头钢铁（集团）有限责任公司 | A kind of breeze blowing distributor |
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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 |
Granted publication date: 20091209 Termination date: 20150223 |
|
| EXPY | Termination of patent right or utility model |