CN201561656U - Pulverized coal gun for smelting reduction furnace - Google Patents
Pulverized coal gun for smelting reduction furnace Download PDFInfo
- Publication number
- CN201561656U CN201561656U CN2009202145758U CN200920214575U CN201561656U CN 201561656 U CN201561656 U CN 201561656U CN 2009202145758 U CN2009202145758 U CN 2009202145758U CN 200920214575 U CN200920214575 U CN 200920214575U CN 201561656 U CN201561656 U CN 201561656U
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- pulverized coal
- oxygen
- coal gun
- outer tube
- lance
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Abstract
The utility model relates to a pulverized coal gun for a smelting reduction furnace, which comprises a spray rod pipe used for jetting pulverized coals, an oxygen outer sleeve, an oxygen lance, an internal thread sealing piece, a connecting flange, a manual ball valve, a quick connector and a seal plate. The pulverized coal spray rod pipe is nested in the oxygen outer sleeve; the oxygen lance is inserted in the oxygen outer sleeve slantways; and the quick connector is arranged at the tail end of the pulverized coal spray rod pipe. The connecting flange, the seal plate, the manual ball valve and the internal thread sealing piece are sequentially sleeved on the pulverized coal spray rod pipe between the oxygen lance and the quick connector; and the connecting flange is screwed with one end of the seal plate. The pulverized coal gun for the smelting reduction furnace has the advantages as follows: the pulverized coal gun can be drawn out for inspection and repair under the condition of no shut-down, so that inspection and installation are convenient; the pulverized coal spray rod pipe is inserted in the oxygen outer sleeve, an inner pipe jets the pulverized coals, an outer pipe jets oxygen, and the pulverized coal spray rod pipe operates in oxygen atmosphere, so that the pulverized coal spray rod pipe can be cooled down and can also be protected; and the quick connector is arranged at the rear end of the pulverized coal spray rod pipe, so that installation and the inspection are convenient.
Description
Technical field
The utility model relates to the fused reduction iron-smelting technology, particularly a kind of pulverized coal gun of the breeze blowing system of fusion reducing furnace.
Background technology
In order to solve big, the heavy-polluted problem of the scale of investment that exists in traditional blast-furnace iron-making method,, developed a kind of fusion reducing furnace iron-refining process in the world, i.e. melting reduction iron-smelting method from nineteen seventies.This iron-refining process uses the common lump coal of certain lumpiness through anticipating fed to boiler, is used to produce the heat and the reducing gas of melting molten iron.
In order to make full use of this resource of coal dust in small, broken bits that produces in Coal Transport and the processing procedure, exploitation is provided with a cover breeze blowing system on the melting and reducing melting gasification furnace.Be actual conditions, need a kind of easy for installation, coal powder lance of coal injection better again of design in conjunction with fusion reducing furnace.
The utility model content
The purpose of this utility model provides a kind of fusion reducing furnace pulverized coal gun, and it has solved the existing in prior technology problem effectively, can reach easy for installation, coal injection better again, under the situation of damping down not, the coal dust rifle is extracted the purpose of maintenance.
Technical solution of the present utility model is as follows:
A kind of fusion reducing furnace pulverized coal gun, it comprises the lance tube of coal injection, it also comprises oxygen outer tube, oxygen lance, internal thread seal, adpting flange, manual ball valve, snap joint and sealing plate;
Described oxygen outer tube is nested with the pulverized coal gun pipe is set, and described oxygen lance oblique cutting is gone in the oxygen outer tube, and the afterbody of pulverized coal gun pipe is provided with snap joint;
A be spirally connected end of sealing plate of described oxygen lance socket adpting flange, sealing plate, manual ball valve and internal thread seal successively to the pulverized coal gun pipe between the snap joint, adpting flange.
Fixedly connected oxygen outer tube of internal thread seal on the described pulverized coal gun pipe and lance tube, and crimping coal holster spare and sealing ring successively.
The other end of described sealing plate is provided with sight glass.
Described sight glass is provided with heat-protecting glass, safety glass and blue filter glass.
The nitrogen tube of pegging graft between described manual ball valve and the internal thread seal.
Described nitrogen tube is provided with manual ball valve.
The front end grafting oxygen air port of described oxygen outer tube.
Socket air port connector on the oxygen outer tube between described oxygen air port and the oxygen lance.
Through constantly test and improvement, the utility model has designed a kind of pulverized coal gun that is applicable to the fusion reducing furnace coal injection system, and this pulverized coal gun is installed on the oxygen air port, and installs with the sealing of oxygen air port.This coal powder lance is a kind of modular appliance, by coal dust gun barrel, oxygen outer tube, connector, sealing device and spy on device etc. and form.The coal dust gun barrel is inserted in the oxygen outer tube by sealing device, is inserted in the oxygen air port, and the coal dust gun barrel is used for coal injection.Air port connector on the oxygen outer tube is used to be installed in putting greatly of oxygen air port, can play the fixedly effect of oxygen outer tube and coal dust gun barrel, can smelt to the fusion reducing furnace oxygen blast by the pipeline between oxygen outer tube and the coal dust gun barrel simultaneously.The oxygen outer tube connects a sealing plate by flange, and the coal rifle is fixed on the sealing plate by the internal thread seal again, can under the situation of damping down not the coal dust rifle be extracted maintenance.Sight glass is installed above the sealing plate, can be observed situation in pulverized coal gun situation, coal dust firing situation and the stove by sight glass.The gun breech end has snap joint, can pulverized coal gun be connected with the winding-up arm with metal hose.
The utility model makes it compared with prior art owing to adopted above technical scheme, has following advantage:
1, this pulverized coal gun can be extracted maintenance with pulverized coal gun under the situation of damping down not, overhauls easy for installation.
2, the coal dust gun barrel inserts in the oxygen outer tube, interior pipe coal injection, and outer tube winding-up oxygen in the oxygen atmosphere, can play cooling effect to the coal dust gun barrel during work of coal dust gun barrel, protection coal dust gun barrel.
3, the coal dust gun tube rear end has snap joint, is convenient to install maintenance.
Description of drawings
Fig. 1 is the structural representation of a kind of fusion reducing furnace pulverized coal gun of the present utility model.
Fig. 2 is the user mode figure of Fig. 1 fusion reducing furnace pulverized coal gun.
Fig. 3 is the enlarged drawing at A place among Fig. 1.
Number in the figure:
1 is the oxygen air port, and 2 is the air port connector, and 3 is the oxygen outer tube, 4 is the pulverized coal gun pipe, and 5 is oxygen lance, and 6 is the internal thread seal, 7 is adpting flange, and 8 is manual ball valve, and 9 is sight glass, 10 are snap joint, 11 is manual ball valve, and 12 is nitrogen tube, and 13 is coal holster spare, 14 is sealing ring, and 15 is sealing plate.
The specific embodiment
Below in conjunction with drawings and Examples fusion reducing furnace pulverized coal gun of the present utility model is elaborated.
Referring to Fig. 1 to Fig. 3, a kind of fusion reducing furnace pulverized coal gun of the present utility model mainly is made up of oxygen air port 1, air port connector 2, the oxygen outer tube 3 of winding-up oxygen, lance tube 4, oxygen lance 5, internal thread seal 6, adpting flange 7, manual ball valve 8, sight glass 9, snap joint 10, manual ball valve 11, nitrogen tube 12, coal holster spare 13, sealing ring 14 and the sealing plate 15 of coal injection.
Oxygen outer tube 3 is nested with pulverized coal gun pipe 4 is set, and oxygen lance 5 oblique cuttings are gone in the oxygen outer tube 3, and the afterbody of pulverized coal gun pipe 4 is provided with snap joint 10, can pulverized coal gun be connected with the winding-up arm with metal hose.A be spirally connected end of sealing plate 15 of oxygen lance 5 socket adpting flange 7, sealing plate 15, manual ball valve 8 and internal thread seal 6 successively to the pulverized coal gun pipe 4 between the snap joint 10, adpting flange 7, sealing plate 15 can guarantee that oxygen can not leak in the stove.Internal thread seal 6 fixedly connected oxygen outer tube 3 and lance tubes 4 on the pulverized coal gun pipe 4, and crimping coal holster spare 13 and sealing ring 14 successively.
The other end of sealing plate 15 is provided with sight glass 9, and sight glass 9 is provided with heat-protecting glass, safety glass and blue filter glass, by sight glass 9 can Real Time Observation oxygen outer tube in 3 lance tube 4 situations and coal dust leave combustion position behind the coal rifle.Grafting nitrogen tube 12 between manual ball valve 8 and internal thread seal 6.Nitrogen tube 12 is provided with manual ball valve 11, is used to control the throughput size of nitrogen in the nitrogen tube 12.The front end grafting oxygen air port 1 of oxygen outer tube 3, socket air port connector 2 on the oxygen outer tube 3 between oxygen air port 1 and the oxygen lance 5.
In the present embodiment, the 1 air intake oral-lateral in the oxygen air port connects oxygen outer tube 3, air port connector 2, internal thread seal 6, adpting flange 7, manual ball valve 8 successively.Pulverized coal gun pipe 4 tail ends connect snap joint 10.Lance tube 4 passes internal thread seal 6, manual ball valve 8, adpting flange 7 and oxygen outer tube 3 and is inserted into oxygen air port 1.Be provided with the jockey that is used for fixing and the coal rifle is installed in sealing plate 15 1 sides, insert the coal rifle after, the internal thread seal 6 of screwing on, thus make it compress coal holster spare 13 on the lance tube 4, simultaneously sealing ring 14 is compressed, lance tube 4 is fixed in sealing plate 15.Then sealing plate 15 is installed in adpting flange 7, the 2 usefulness bolting of the air port connector on the oxygen outer tube 3 make coal rifle and oxygen hose fixing together to tuyere big sleeve the most at last, and are more solid reliable.
When changing pulverized coal gun pipe 4, internal thread seal 6 is back-outed, extract lance tube 4, close manual ball valve 8, just can guarantee another root pulverized coal gun pipe 4 of the not online replacing in damping down ground.
On the observation sealing plate 15 that lance tube 4 tail ends are installed, sight glass 9 is housed, heat-protecting glass, safety glass and blue filter glass are housed on the sight glass 9, by sight glass 9 can Real Time Observation oxygen outer tube in 3 lance tube 4 situations and coal dust leave combustion position behind the coal rifle.Sealing plate 15 can guarantee that oxygen can not leak in the stove, when needs are online draw guns before, nitrogen tube 12 is connected high pressure nitrogen, open manually-operated gate 11, in rifle, feed sealing nitrogen, extract lance tube 4, close manual ball valve 8 rapidly, shut manual ball valve 11 again, stop to feed sealing nitrogen, and insert muzzle with stifled the going up of blind plug, be convenient to not damping down and extract the maintenance of coal rifle.
After the coal rifle is installed, when needing coal powder injection, get final product coal powder injection as long as the snap joint of coal gun barrel tail end coupled together with the metal hose on the coal jetting branch, the loading and unloading maintenance is very convenient.
In summary, the utlity model has following advantage: pulverized coal gun can be extracted maintenance with pulverized coal gun under the situation of damping down not, overhaul easy for installation; The coal dust gun barrel inserts in the oxygen outer tube, interior pipe coal injection, and outer tube winding-up oxygen in the oxygen atmosphere, can play cooling effect to the coal dust gun barrel during work of coal dust gun barrel, protection coal dust gun barrel; The coal dust gun tube rear end has snap joint, is convenient to install maintenance.
Certainly, those skilled in the art in the present technique field will be appreciated that, the foregoing description only is to be used for illustrating the utility model, and be not with opposing qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in the scope of the utility model claim conversion, the modification of the foregoing description.
Claims (8)
1. fusion reducing furnace pulverized coal gun, it comprises the lance tube of coal injection, it is characterized in that, it also comprises oxygen outer tube, oxygen lance, internal thread seal, adpting flange, manual ball valve, snap joint and sealing plate;
Described oxygen outer tube is nested with the pulverized coal gun pipe is set, and described oxygen lance oblique cutting is gone in the oxygen outer tube, and the afterbody of pulverized coal gun pipe is provided with snap joint;
A be spirally connected end of sealing plate of described oxygen lance socket adpting flange, sealing plate, manual ball valve and internal thread seal successively to the pulverized coal gun pipe between the snap joint, adpting flange.
2. fusion reducing furnace pulverized coal gun according to claim 1 is characterized in that, fixedly connected oxygen outer tube of the internal thread seal on the described pulverized coal gun pipe and lance tube, and crimping coal holster spare and sealing ring successively.
3. fusion reducing furnace pulverized coal gun according to claim 1 is characterized in that the other end of described sealing plate is provided with sight glass.
4. fusion reducing furnace pulverized coal gun according to claim 3 is characterized in that, described sight glass is provided with heat-protecting glass, safety glass and blue filter glass.
5. fusion reducing furnace pulverized coal gun according to claim 1 is characterized in that, the nitrogen tube of pegging graft between described manual ball valve and the internal thread seal.
6. fusion reducing furnace pulverized coal gun according to claim 5 is characterized in that described nitrogen tube is provided with manual ball valve.
7. fusion reducing furnace pulverized coal gun according to claim 1 is characterized in that, the front end grafting oxygen air port of described oxygen outer tube.
8. fusion reducing furnace pulverized coal gun according to claim 7 is characterized in that, socket air port connector on the oxygen outer tube between described oxygen air port and the oxygen lance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202145758U CN201561656U (en) | 2009-11-30 | 2009-11-30 | Pulverized coal gun for smelting reduction furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202145758U CN201561656U (en) | 2009-11-30 | 2009-11-30 | Pulverized coal gun for smelting reduction furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201561656U true CN201561656U (en) | 2010-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202145758U Expired - Lifetime CN201561656U (en) | 2009-11-30 | 2009-11-30 | Pulverized coal gun for smelting reduction furnace |
Country Status (1)
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| CN (1) | CN201561656U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102559973A (en) * | 2010-12-21 | 2012-07-11 | 张昭贵 | Blast furnace air supply device and pulverized coal injection and pulverized coal injection combustion method |
| CN102679339A (en) * | 2012-06-05 | 2012-09-19 | 唐山市金沙工贸有限公司 | Pulverized coal burner |
| CN105841496A (en) * | 2016-05-16 | 2016-08-10 | 中国恩菲工程技术有限公司 | Spray gun for side-blown submerged combustion bath smelting device |
| WO2017166975A1 (en) * | 2016-04-01 | 2017-10-05 | 中国恩菲工程技术有限公司 | Blowtorch for use in lateral blowing of submerged burning molten pool metallurgical furnace and metallurgical furnace having blowtorch |
| CN107726865A (en) * | 2017-10-18 | 2018-02-23 | 云南钛业股份有限公司 | A kind of quick online method for changing plate valve |
| CN114018058A (en) * | 2022-01-10 | 2022-02-08 | 唐山精研实业有限责任公司 | Composite material oxygen coal spray gun |
-
2009
- 2009-11-30 CN CN2009202145758U patent/CN201561656U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102559973A (en) * | 2010-12-21 | 2012-07-11 | 张昭贵 | Blast furnace air supply device and pulverized coal injection and pulverized coal injection combustion method |
| CN102679339A (en) * | 2012-06-05 | 2012-09-19 | 唐山市金沙工贸有限公司 | Pulverized coal burner |
| CN102679339B (en) * | 2012-06-05 | 2014-05-07 | 唐山市金沙工贸有限公司 | Pulverized coal burner |
| WO2017166975A1 (en) * | 2016-04-01 | 2017-10-05 | 中国恩菲工程技术有限公司 | Blowtorch for use in lateral blowing of submerged burning molten pool metallurgical furnace and metallurgical furnace having blowtorch |
| RU2706900C1 (en) * | 2016-04-01 | 2019-11-21 | Чайна Энфи Инжиниринг Корпорейшн | Oxygen tuyere of melting metallurgical furnace with side immersion of combustion chamber and metallurgical furnace with oxygen tuyere |
| AU2017240929B2 (en) * | 2016-04-01 | 2020-06-04 | China Enfi Engineering Corporation | Blowtorch for use in lateral blowing of submerged burning molten pool metallurgical furnace and metallurgical furnace having blowtorch |
| CN105841496A (en) * | 2016-05-16 | 2016-08-10 | 中国恩菲工程技术有限公司 | Spray gun for side-blown submerged combustion bath smelting device |
| CN107726865A (en) * | 2017-10-18 | 2018-02-23 | 云南钛业股份有限公司 | A kind of quick online method for changing plate valve |
| CN114018058A (en) * | 2022-01-10 | 2022-02-08 | 唐山精研实业有限责任公司 | Composite material oxygen coal spray gun |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100825 |