CN201241161Y - High-efficiency combined coal injection gun - Google Patents
High-efficiency combined coal injection gun Download PDFInfo
- Publication number
- CN201241161Y CN201241161Y CNU2008201879124U CN200820187912U CN201241161Y CN 201241161 Y CN201241161 Y CN 201241161Y CN U2008201879124 U CNU2008201879124 U CN U2008201879124U CN 200820187912 U CN200820187912 U CN 200820187912U CN 201241161 Y CN201241161 Y CN 201241161Y
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- China
- Prior art keywords
- coal
- tube body
- pipe
- interior tube
- coal pipe
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Abstract
Disclosed is an Efficient combined type coal injection gun, which comprises a pulverized coal tube, and is characterized in that: an inner tube body is fixedly arranged in the pulverized coal tube, a gap is disposed between the inner tube body and the pulverized coal tube, a sealing structure is arranged at the gap of the inner tube body and the pulverized coal tube near a pulverized coal inlet end, the pulverized coal tube is connected with an air tube with an inner cavity communicated with the pulverized coal tube, and valves are disposed at inlet ends of the pulverized coal tube and the air tube. The utility model has the advantages of simple structure, low manufacturing cost, long service life and sufficient burning of pulverized coal.
Description
Technical field
The utility model relates to a kind of pneumatic feeding device, relates in particular to a kind of efficient composite coal spouting gun.
Background technology
The function of existing coal spouting gun only is a Coal powder spray in blast furnace, function singleness, during coal powder injection, the diffusing group of coal dust is bigger, influences the infiltration of the diffusing group of coal dust to the center, be unfavorable for that coal dust pours the high temperature district of circling round, cause burning insufficient, waste energy, and, because coal spouting gun is in the hot environment, damage easily, work-ing life is short.
Summary of the invention
The utility model is at the existing in prior technology shortcoming, and the technical scheme of a kind of simple in structure, low cost of manufacture, efficient composite coal spouting gun that result of use is good is provided.
The utility model is realized by following technical measures: it comprises coal pipe, the coal pipe internal fixing is equipped with interior tube body, gapped between interior tube body and the coal pipe, described interior tube body and coal pipe are provided with sealed structure near the gap location of coal powder entrance end, coal pipe is connected with the tracheae that inner chamber is communicated with coal pipe, and the inlet end of coal pipe and tracheae is provided with valve.This scheme can be carried pressurized air by coal spouting gun by tracheae in pulverized coal conveying, because compressed-air actuated effect, diffusing group diminishes with coal dust, increase coal dust to the ability that the center penetrates, help coal dust and pour the high temperature district of circling round, it is fully burnt, after the diffusing group of coal dust diminishes, can avoid wearing and tearing, reduce to damage and leak, thereby reduce accessory consumption and maintenance cost blast-furnace tuyere; Pressurized air also has combustion-supporting effect, can accelerate the burning of coal dust; Utilize injection principle simultaneously, do not influence the conveying of injecting coal quantity, simultaneously the rifle body is played the refrigerative effect, can alleviate because high temperature causes damage to the rifle body, coal spouting gun is increased work-ing life, reduce the replacing number of times and the quantity of coal spouting gun, thereby reduction accessory consumption and manual maintenance are taken.
Keep certain clearance in order to make between interior tube body and the coal pipe, the utility model is realized in the following way, is provided with supporting structure between above-mentioned interior tube body and the coal pipe.
Above-mentioned supporting structure is to be fixed on the coal pipe inwall or to be fixed on pillar stiffener on the interior tube body outer wall, and pillar stiffener is arranged along circumference uniform distribution.This simple in structure, the processing and manufacturing cost is low, implement easily.，
In order to prevent that gas from flowing to suction, avoid the generation of industrial accident, further improvement of the utility model also has, and on the above-mentioned tracheae check valve is installed.Simultaneously, also manometric safety component can be installed.
Above-mentioned coal pipe and tracheae and interior tube body are seamless tube, specifically can adopt wear-resistant stainless steel seamless pipe.
The beneficial effect of this programme can learn that it is simple in structure, the processing and manufacturing cost is low according to the narration to such scheme, and long service life promotes that coal dust fully burns.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is that the A-A of Fig. 1 is to sectional view.
Among the figure, 1, valve, 2, coal pipe, 3, interior tube body, 4, tensimeter, 5, pillar stiffener, 6, tracheae, 7, check valve, 8, valve, 9, sealed structure.
Embodiment
For clearly demonstrating the technical characterstic of this programme,, and, this programme is set forth in conjunction with its accompanying drawing below by an embodiment.
A kind of efficient composite coal spouting gun, as shown in Figure 1, it comprises coal pipe 2, coal pipe 2 can connect and compose or one is made by two sections, wherein the tube wall of one section of coal pipe 2 inlet is thicker than the tube wall of one section of coal pipe outlet, coal pipe 2 internal fixing are equipped with interior tube body 3, gapped between interior tube body 3 and the coal pipe 2, described interior tube body 3 and coal pipe 2 are provided with sealed structure 9 near the gap location of coal powder entrance end, sealed structure 9 can adopt sealing-ring, and mechanical usual manner such as felt realizes that coal pipe 2 is connected with the tracheae 6 that inner chamber is communicated with coal pipe 2, the inlet end of coal pipe 2 and tracheae 6 is provided with valve 1,8, check valve 7 and tensimeter 4 also are installed on the tracheae 6.As shown in Figure 2, be provided with supporting structure between interior tube body 3 and the coal pipe 2, supporting structure is to be fixed on coal pipe 2 inwalls or to be fixed on pillar stiffener or piece on interior tube body 3 outer walls, and pillar stiffener 5 is arranged along circumference uniform distribution.Coal pipe 2 and tracheae 6 and interior tube body 3 are wear-resistant stainless steel seamless pipe.
Claims (7)
1, a kind of efficient composite coal spouting gun, it comprises coal pipe, it is characterized in that, described coal pipe internal fixing is equipped with interior tube body, gapped between interior tube body and the coal pipe, described interior tube body and coal pipe are provided with sealed structure near the gap location of coal powder entrance end, and coal pipe is connected with the tracheae that inner chamber is communicated with coal pipe, and the inlet end of coal pipe and tracheae is provided with valve.
2, efficient composite coal spouting gun according to claim 1 is characterized in that, is provided with supporting structure between described interior tube body and the coal pipe.
3, efficient composite coal spouting gun according to claim 2 is characterized in that, described supporting structure is to be fixed on the coal pipe inwall or to be fixed on pillar stiffener on the interior tube body outer wall.
4, efficient composite coal spouting gun according to claim 3 is characterized in that, described pillar stiffener is arranged along circumference uniform distribution.
5, efficient composite coal spouting gun according to claim 1 is characterized in that, on the described tracheae check valve is installed.
6, according to claim 1 or 2 or 3 described efficient composite coal spouting guns, it is characterized in that described coal pipe and tracheae and interior tube body are seamless tube.
7, according to claim 1 or 2 or 3 described efficient composite coal spouting guns, it is characterized in that described described coal pipe and tracheae and interior tube body are wear-resistant stainless steel seamless pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201879124U CN201241161Y (en) | 2008-08-19 | 2008-08-19 | High-efficiency combined coal injection gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201879124U CN201241161Y (en) | 2008-08-19 | 2008-08-19 | High-efficiency combined coal injection gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201241161Y true CN201241161Y (en) | 2009-05-20 |
Family
ID=40714456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201879124U Expired - Fee Related CN201241161Y (en) | 2008-08-19 | 2008-08-19 | High-efficiency combined coal injection gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201241161Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104024440A (en) * | 2011-12-21 | 2014-09-03 | 杰富意钢铁株式会社 | Blast furnace operation method |
-
2008
- 2008-08-19 CN CNU2008201879124U patent/CN201241161Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104024440A (en) * | 2011-12-21 | 2014-09-03 | 杰富意钢铁株式会社 | Blast furnace operation method |
| CN104024440B (en) * | 2011-12-21 | 2016-01-20 | 杰富意钢铁株式会社 | Method for operating blast furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090520 Termination date: 20110819 |