CN201024178Y - Double tube ceramic liner powdered coal blast gun - Google Patents
Double tube ceramic liner powdered coal blast gun Download PDFInfo
- Publication number
- CN201024178Y CN201024178Y CNU2007200840550U CN200720084055U CN201024178Y CN 201024178 Y CN201024178 Y CN 201024178Y CN U2007200840550 U CNU2007200840550 U CN U2007200840550U CN 200720084055 U CN200720084055 U CN 200720084055U CN 201024178 Y CN201024178 Y CN 201024178Y
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- tube
- pipe
- lined
- pulverized coal
- ceramic
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Abstract
A dual-pipe coal powder spray gun with ceramic lining consists of a three-way pipe (11), an inner pipe (1), an outer pipe (2), a coal feeding connecting pipe (15) and a coal feeding ball valve (10). An air channel (16) is arranged between the inner pipe (1) and the outer pipe (2), the front parts of which are a design of a bend (12), and the three-way pipe (11) is arranged above the back ends of the inner pipe (1) and the outer pipe (2); the back end of the three-way pipe (11) is connected with the an air inlet ball valve (13) through an air inlet connecting pipe (14), and the coal feeding connecting pipe (15) is connected with the coal feeding ball valve (10). The utility model overcomes the shortcomings of vulnerability and short service life of a prior coal powder spray gun, and has the advantages of long service life, simple structure and convenient operation.
Description
Technical field
The utility model relates to a kind of coal powder injection device that uses in the blast furnace smelting governance, and more particularly it is a kind of two-tube ceramic-lined pulverized coal gun.
Background technology
Pulverized coal injection is the important means of iron increasing and coke saving, the high end of injecting coal quantity, and can effectively control coke ratio, thereby reduce smelting cost, improve economic benefit of enterprises.
The coal spraying process flow process generally is made up of feed, powder process, coal powder injection three parts.The part that coal dust sprays into blast furnace is exactly coal spouting gun (pulverized coal gun), the blast furnace major part all is to use the direct-firing pulverized coal gun of single tube at present, have only 15-20 days general work-ing life, 1., because coal rifle insert division is formed with one 9 °-11 ° of angles with airduct the defective that its exists is:, belly pipe washes away the work-ing life of airduct reduction airduct easily.2., the temperature of belly pipe front end in stove be higher, adds that the high speed of coal dust is washed away, very easily loss causes that to change rifle frequent, labor strength is big, safety coefficient reduces, the use cost height.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned existing disadvantages of background technology part, and a kind of two-tube ceramic-lined pulverized coal gun is provided.
The purpose of this utility model reaches by following measure: two-tube ceramic-lined pulverized coal gun, it is characterized in that it comprises Y-tube 11, interior pipe 1, outer tube 2, and advance coal pipe connecting 15, advance coal briquette valve 10, between described interior pipe 1 and the outer tube 2 ventilation duct 16 is arranged; In pipe 1 with the leading section of outer tube 2 bending 12 is arranged, there is Y-tube 11 the rearward end top, the rearward end of Y-tube 11 is connected with air intake ball valve 13 by air intake pipe connecting 14, the rear end of advancing coal pipe connecting 15 with advance coal briquette valve 10 and be connected.
In technique scheme, there is coal rifle locating device the middle part of described outer tube 2.
In technique scheme, described coal rifle locating device is made up of sealing bolt 3, securing bolt 4, packing ring 5, lock sleeve 6 and locator card 7, lock sleeve 6 is positioned at locator card 7, between securing bolt 4 and the lock sleeve 6 packing ring 5 is arranged, and there is sealing bolt 3 outer end of securing bolt 4.
In technique scheme, the bending angle of described bending 12 is 9 °-11 °.
In technique scheme, there is ceramic bend pipe 8 inboard, front end bending 12 place of described interior pipe 1.
In technique scheme, in the ventilation duct 16 between described interior pipe 1 and the outer tube 2 steel bar 9 is arranged, described steel bar 9 is distributed in the ventilation duct 16.
In technique scheme, the length of described pulverized coal gun is 2745mm.
In technique scheme, the length of described bending 12 is 200mm.
The two-tube ceramic-lined pulverized coal gun of the utility model has following advantage: 1, used double-layer stainless steel pipe (interior pipe and outer tube); the air that is blown into by two ligaments has played the refrigerative provide protection to two-layer steel pipe; by being increased to 165 by original 10-15 days the work-ing life that makes pulverized coal gun, reduced production cost.2, because the time of using is long, just need not change the coal rifle continually, alleviate working strength of workers.The mode of directly blowing before 3, this pipe front end has changed, but utilized certain angle has reduced coal dust washing away and wear and tear other spare part of blast furnace like this.4, the type of cooling and change angle have also been avoided coking simultaneously.5, the two-tube ceramic-lined pulverized coal gun of this utility model is simple in structure, easy to use.
Description of drawings
Fig. 1 is the structural representation of the two-tube ceramic-lined pulverized coal gun of the utility model.
Fig. 2 is the A-A cut-away view of Fig. 1.
Embodiment
Describe performance of the present utility model in detail below in conjunction with accompanying drawing, but they do not constitute to qualification of the present utility model, simultaneously by illustrating that advantage of the present utility model will become clear more and understands easily.
Consult accompanying drawing as can be known: the two-tube ceramic-lined pulverized coal gun of the utility model, it comprises Y-tube 11, interior pipe 1, outer tube 2, air intake pipe connecting 14, advance coal pipe connecting 15, air intake ball valve 13, advance coal briquette valve 10, between pipe 1 and the outer tube 2 ventilation duct 16 is arranged in described, interior pipe 1 has bending 12 with the leading section of outer tube 2, the bending angle of bending 12 is 9-11 °, there is ceramic bend pipe 8 inboard, front end bending 12 position of pipe 1 in described, interior pipe 1 has Y-tube 11 with the top, rear end of outer tube 2, Y-tube 11 is connected with air intake tee ball valve 13 by air intake pipe connecting 14, advance coal pipe connecting 15 and advance coal briquette valve 10 and be connected, the length of pulverized coal gun is 2745mm, and the length of bending 12 is 200mm.
There is coal rifle locating device the middle part of outer tube 2, coal rifle locating device is made up of sealing bolt 3, securing bolt 4, packing ring 5, lock sleeve 6 and locator card 7, lock sleeve 6 is positioned at locator card 7, between securing bolt 4 and the lock sleeve 6 packing ring 5 is arranged, and there is sealing bolt 3 outer end of securing bolt 4.
In the ventilation duct 16 between interior pipe 1 and the outer tube 2 steel bar 9 is arranged, described steel bar 9 is distributed in the ventilation duct 16, can form even crack like this between interior pipe 1 and outer tube 2, makes the intensity of wind more even, thereby improves cooling performance.
Claims (8)
1. two-tube ceramic-lined pulverized coal gun, it is characterized in that it comprises Y-tube (11), interior pipe (1), outer tube (2), advance coal pipe connecting (15), advance coal briquette valve (10), between pipe (1) and the outer tube (2) ventilation duct (16) is arranged in described, interior pipe (1) has bending (12) with the leading section of outer tube (2), interior pipe (1) has Y-tube (11) with the top, rear end of outer tube (2), the rearward end of Y-tube (11) is connected with air intake ball valve (13) by air intake pipe connecting (14), advances coal pipe connecting (15) and advances coal briquette valve (10) and be connected.
2. two-tube ceramic-lined pulverized coal gun according to claim 1 is characterized in that there is coal rifle locating device the middle part of described outer tube (2).
3. two-tube ceramic-lined pulverized coal gun according to claim 2, it is characterized in that described locating device is made up of sealing bolt (3), securing bolt (4), packing ring (5), lock sleeve (6) and locator card (7), described lock sleeve (6) is positioned at locator card (7), between securing bolt (4) and the lock sleeve (6) packing ring (5) is arranged, there is sealing bolt (3) outer end of securing bolt (4).
4. two-tube ceramic-lined pulverized coal gun according to claim 1, the bending angle that it is characterized in that described bending (12) are 9 °-11 °.
5. according to claim 1 or 4 described two-tube ceramic-lined pulverized coal guns, it is characterized in that there is ceramic bend pipe (8) front end bending (12) inboard, position of described interior pipe (1).
6. two-tube ceramic-lined pulverized coal gun according to claim 1 is characterized in that in the ventilation duct (16) between described interior pipe (1) and the outer tube (2) steel bar (9) being arranged, and described steel bar (9) is distributed in the ventilation duct (16).
7. two-tube ceramic-lined pulverized coal gun according to claim 1, the length that it is characterized in that described pulverized coal gun is 2745mm.
8. two-tube ceramic-lined pulverized coal gun according to claim 5, the length that it is characterized in that described bending (12) is 200mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200840550U CN201024178Y (en) | 2007-04-05 | 2007-04-05 | Double tube ceramic liner powdered coal blast gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200840550U CN201024178Y (en) | 2007-04-05 | 2007-04-05 | Double tube ceramic liner powdered coal blast gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201024178Y true CN201024178Y (en) | 2008-02-20 |
Family
ID=39098032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200840550U Expired - Fee Related CN201024178Y (en) | 2007-04-05 | 2007-04-05 | Double tube ceramic liner powdered coal blast gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201024178Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103131808A (en) * | 2011-11-23 | 2013-06-05 | 张昭贵 | Spray gun burner and loading and unloading method thereof |
| CN103255253A (en) * | 2012-02-17 | 2013-08-21 | 张昭贵 | Side spraying type coal powder spraying gun |
-
2007
- 2007-04-05 CN CNU2007200840550U patent/CN201024178Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103131808A (en) * | 2011-11-23 | 2013-06-05 | 张昭贵 | Spray gun burner and loading and unloading method thereof |
| CN103255253A (en) * | 2012-02-17 | 2013-08-21 | 张昭贵 | Side spraying type coal powder spraying gun |
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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: 20080220 Termination date: 20150405 |
|
| EXPY | Termination of patent right or utility model |