CN202174024U - Coke oven gas and coal powder composite lance equipped with elbow - Google Patents
Coke oven gas and coal powder composite lance equipped with elbow Download PDFInfo
- Publication number
- CN202174024U CN202174024U CN2011202226112U CN201120222611U CN202174024U CN 202174024 U CN202174024 U CN 202174024U CN 2011202226112 U CN2011202226112 U CN 2011202226112U CN 201120222611 U CN201120222611 U CN 201120222611U CN 202174024 U CN202174024 U CN 202174024U
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- CN
- China
- Prior art keywords
- outer tube
- elbow
- spray gun
- arc
- pressure ring
- 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 coke oven gas and coal powder composite lance equipped with an elbow, which omprises an outer tube. An inner tube is arranged inside the outer tube. The outer tube is provided with a gas branch pipe and the front end of a lance is equipped with an elbow. The outer wall of the outer tube is equipped with an annular sealing sheet. The top surface of the annular sealing sheet is connected with a pressure ring. The pressure ring is connected with an arc-shaped plate through a connection column. According to the utility model, the lance and the lance-inserting channel of a straight blasting pipe are well sealed with each other and the back flow of hot air is avoided.
Description
Technical field
The utility model relates to a kind of spray gun, specifically a kind of coke-stove gas and the compound spray gun of coal dust with elbow.
Background technology
At present, tend to produce the residue combustion gas in the Iron and Steel Enterprises in China in the production process, this combustion gas mainly contains blast furnace gas, coke-stove gas, coal gas of converter etc.Combustion gas is the reducing agent of high-quality, can replace coke or coal injection in the blast furnace, not only can reduce the discharging of CO2, can also reduce production costs.In order can coke-stove gas and coal dust to be transported in the blast furnace crucibe; Need to use double-deck compound spray gun; Because compound spray gun diameter is relatively large; Front end is provided with elbow again, so sealing is relatively poor between spray gun and the plug in rifle duct of belly pipe, occurs the situation that the hot blast in the belly pipe pours in down a chimney from plug in rifle duct easily.
The utility model content
The purpose of the utility model provides a kind of coke-stove gas and compound spray gun of coal dust with elbow, and it can guarantee good seal between spray gun and the plug in rifle duct of belly pipe, the situation that hot blast pours in down a chimney can not occur.
The utility model is for realizing above-mentioned purpose; Realize through following technical scheme: comprise outer tube, pipe in installing in the outer tube is provided with branch gas tube on the outer tube; The spray gun front end is provided with elbow; Outer tube outer wall is provided with the ring packing sheet, and ring packing sheet end face is connected with pressure ring, and pressure ring is connected with arc through joint pin.Arc is connected with outer tube, and outer tube outer wall is provided with outer silk, and the arc inwall is provided with internal thread.Arc is plugged in the rifle duct through bolt and belly pipe and is connected.
The advantage of the utility model is: can guarantee good seal between the plug in rifle duct of spray gun and belly pipe, the situation that hot blast pours in down a chimney can not occur, the thrust scalable of pressure ring etc.
Description of drawings
Fig. 1 is the utility model structural representation; Fig. 2 is the structural representation of another embodiment of the utility model; Fig. 3 is that the A-A of Fig. 1 analyses and observe the structure for amplifying sketch map.
The specific embodiment
The utility model described a kind of coke-stove gas and the compound spray gun of coal dust with elbow; Comprise outer tube 1, pipe 2 in installing in the outer tube 1 is provided with branch gas tube 3 on the outer tube 1; The spray gun front end is provided with elbow 6; Outer tube 1 outer wall is provided with ring packing sheet 7, and ring packing sheet 7 end faces are connected with pressure ring 11, and pressure ring 11 is connected with arc 8 through joint pin 10.In the interior pipe 2 is the coal dust passage, is gas passage between interior pipe 2 and the outer tube 1, and gas passage communicates with branch gas tube 3; This structure can realize coal injection, winding-up coal gas, perhaps jet simultaneously coal gas and coal dust, and elbow 6 main effects are to make the spray gun center line parallel with air blast stream thigh; Alleviate spray gun to the washing away of tuyere small sleeve inwall, plug in rifle duct 5 for elbow 6 is inserted belly pipes, the internal diameter of plugging in rifle duct 5 need be slightly larger than the external diameter of spray gun; Therefore existing spray gun product sealing between spray gun and plug in rifle duct 5 is relatively poor; Occur the situation that the hot blast in the belly pipe pours in down a chimney from plug in rifle duct easily, ring packing sheet 7 can strengthen the sealing between spray gun and the plug in rifle duct 5, because the belly pipe internal pressure is higher; Therefore also need pressure ring 11 is set on ring packing sheet 7, ring packing sheet 7 is compressed.During installation, pressure ring 11 is enclosed within outer tube 1 outside, spray gun with the position that pressure ring 11 inserts between spray guns and the plug in rifle duct 5, compresses annular diaphragm seal 7 through joint pin 10 after inserting rifle duct 5 and fixing completion at present, and through arc 8 location.
The said arc 8 of the utility model can adopt multiple locate mode, and embodiment is following:
Embodiment one:
Arc 8 is connected with outer tube 1, and outer tube 1 outer wall is provided with outer silk 12, and arc 8 inwalls are provided with internal thread.Outer silk 12 matches with internal thread, and arc 8 is located.Can realize regulating the size of pressure ring 11 thrusts through the setting height(from bottom) of regulating arc 8, but because the working environment dust is more, gather at silk 12 places outside as if a large amount of dust, it is not smooth that outer silk 12 is cooperated with internal thread, influences the accuracy that arc 8 is located.
Embodiment two:
Arc 8 is plugged in rifle duct 5 through bolt 9 and belly pipe and is connected.Present embodiment is affected by environment less, but can't regulate the thrust of pressure ring 11.
4 is that belly pipe is plugged in the ball valve on the rifle duct among the figure.
Claims (3)
1. coke-stove gas and the compound spray gun of coal dust with an elbow; It is characterized in that: comprise outer tube (1), pipe (2) in installing in the outer tube (1) is provided with branch gas tube (3) on the outer tube (1); The spray gun front end is provided with elbow (6); Outer tube (1) outer wall is provided with ring packing sheet (7), and ring packing sheet (7) end face is connected with pressure ring (11), and pressure ring (11) is connected with arc (8) through joint pin (10).
2. a kind of coke-stove gas and the compound spray gun of coal dust according to claim 1 with elbow, it is characterized in that: arc (8) is connected with outer tube (1), and outer tube (1) outer wall is provided with outer silk (12), and arc (8) inwall is provided with internal thread.
3. a kind of coke-stove gas and the compound spray gun of coal dust with elbow according to claim 1 is characterized in that: arc (8) is plugged in rifle duct (5) through bolt (9) and belly pipe and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202226112U CN202174024U (en) | 2011-06-28 | 2011-06-28 | Coke oven gas and coal powder composite lance equipped with elbow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202226112U CN202174024U (en) | 2011-06-28 | 2011-06-28 | Coke oven gas and coal powder composite lance equipped with elbow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202174024U true CN202174024U (en) | 2012-03-28 |
Family
ID=45863934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202226112U Expired - Fee Related CN202174024U (en) | 2011-06-28 | 2011-06-28 | Coke oven gas and coal powder composite lance equipped with elbow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202174024U (en) |
-
2011
- 2011-06-28 CN CN2011202226112U patent/CN202174024U/en not_active Expired - Fee Related
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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: 20120328 Termination date: 20170628 |