CN204874568U - Buggy spray gun for blast furnace - Google Patents
Buggy spray gun for blast furnace Download PDFInfo
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- CN204874568U CN204874568U CN201520637056.8U CN201520637056U CN204874568U CN 204874568 U CN204874568 U CN 204874568U CN 201520637056 U CN201520637056 U CN 201520637056U CN 204874568 U CN204874568 U CN 204874568U
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- gun
- blast furnace
- rifle head
- spray gun
- coal dust
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Abstract
The utility model relates to a buggy spray gun for blast furnace, including quick change coupler, connect tee bend, ball valve, no. Two ball valves, the body of a gun, sleeve pipe, check valve, rifle head, quick -operation joint, connect the tee bend, no. Two ball valves, sleeve pipe, the body of a guies connect gradually, are connected with the ball valve no. One on connecting the tee bend, body of a gun anterior segment and the welding of rifle head are connected with the check valve on the body of a gun. The advantage is: the injection is robbed and comprises a plurality of connecting pieces, makes holistic interchangeability of spray gun and reliability be protected, through setting up the function that a ball valve realization was exitted, can emit the residual gas of blowing -out in -process to can inspect the pipeline operational aspect, set up positioning bolt on the connecting pipe, can the auxiliary stay body of a gun, body of a gun vibration when having reduced the coal powder injection has improved the stability of spray tube, has also avoided rifle head ceramic coating's vibration to drop, through the positioning bolt and the lock nut of adjustment check valve subassembly, can change the angle of the body of a gun and the degree of depth of inserting furnace at any time.
Description
Technical field
The utility model relates to a kind of blast furnace coal dust spray gun.
Background technology
Blast furnace adopt coal dust spraying technique can realize energy-conservation, reduce process of coking to the pollution of environment, optimize ironmaking system energy structure.Coal dust replaces coke also can bring huge economic benefit in addition, improves enterprise productivity, reduces production cost.In coal dust injection system, coal dust is ejected in blast furnace burner hearth by pipeline and splashing device, this splashing device is extremely important, except there is flow, spraying pressure regulatory function, the coal dust transfer passage inwall of this equipment is wear-resisting, high temperature resistant, go deep into burner hearth some work inclement condition, the reliability that more will have and weather resistance.
Blast-furnace coal powder splashing device widely uses coal spouting gun, many to the research of coal dust rifle improvement in recent years, the inwall proposing this pulverized coal gun body of a gun leading portion as the publication number patent that is CN201296760Y is provided with ceramic plated layer, thus makes to reach more than 30 days the work-ing life of pulverized coal gun.Publication number is the patent of CN202717784U, adjusts angle between injection tube and tube head, angle is increased to 177.5 ° by 175 °, ensures that coal dust evenly sprays into blast furnace in the horizontal direction, ensures the combustion efficacy of coal dust in blast furnace, reduce coke ratio.Although improvement project is many, these measures make coal dust rifle high high-temp stability and jetting pressure be improved, but it is poor still to there is coal spouting gun interchangeability in actual production, work-ing life is short, the problems such as constant product quality and reliability are not high, the interchangeability of coal dust spray gun, work-ing life, reliability and job stability still need further lifting.
Summary of the invention
For overcoming the deficiencies in the prior art, the purpose of this utility model is to provide a kind of blast furnace coal dust spray gun, and interchangeability is good, reliable operation, installation and replacing are convenient, work-ing life is of a specified duration, can efficiently, stably to high furnace injection coal dust.
For achieving the above object, the utility model is achieved through the following technical solutions:
A kind of blast furnace coal dust spray gun, comprise hydraulic quick coupler, connecting tee, a ball valve, No. two ball valves, the body of a gun, sleeve pipe, vacuum breaker, rifle heads, rapid-acting coupling, connecting tee, No. two ball valves, sleeve pipe, the body of a guies connect successively, connecting tee is connected with a ball valve, body of a gun leading portion welds with rifle head, and the body of a gun is connected with vacuum breaker.
Also comprise pipe connecting, nut, sealing-ring, ring flange, pipe connecting one end is connected with the body of a gun by nut, and the other end is connected with vacuum breaker, and the vacuum breaker the other end is connected with the body of a gun by ring flange, is provided with sealing-ring between nut and the body of a gun.
Described rifle head and the central shaft angle of the body of a gun are α, α is 4 ° ~ 10 °.
Described rifle head inwall is lined with the pottery of thickness 1.5mm ~ 3mm.
Described pipe connecting is connected with tack bolt.
Compared with prior art, the beneficial effects of the utility model are:
1, injection is robbed and is made up of multiple web member, and the interchangeability of spray gun entirety and reliability are protected;
2, realizing the function of venting by arranging a ball valve, the residual gas in blowing-out process can be released, and pipeline running condition can be checked;
3, pipe connecting arranges tack bolt, can the supplemental support body of a gun, body of a gun vibration when reducing coal powder injection, improve the stability of jet pipe, the vibration that it also avoid rifle head ceramic coating comes off;
4, by tack bolt and the set nut of adjustment check valve assembly, the angle of the body of a gun can be changed at any time and insert the degree of depth of burner hearth, making it reach best jeting effect.
5, rifle head liner ceramic of compact coating, its porosity is low, wear resistance good, and non-friable and come off under impact.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is I enlarged view of Fig. 1.
Fig. 3 is II enlarged view of Fig. 1.
In figure: 1-rifle head 2-ring flange 3-vacuum breaker 4-pipe connecting 5-nut 6-sealing-ring 7-sleeve pipe 8-body of a gun 9-No. bis-ball valve 10-connecting tee 11-ball valve 12-hydraulic quick coupler 13-tack bolt 14-pottery.
Embodiment
Below in conjunction with Figure of description, the utility model is described in detail, but it should be noted that enforcement of the present utility model is not limited to following embodiment.
See Fig. 1-Fig. 3, a kind of blast furnace coal dust spray gun, comprise hydraulic quick coupler 12, connecting tee 10, ball valve 11, No. two ball valves 9, the body of a gun 8, sleeve pipe 7, vacuum breaker 3, rifle heads 1, rapid-acting coupling, connecting tee 10, No. two ball valves 9, sleeve pipe 7, the body of a guies 8 connect successively, connecting tee 10 is connected with a ball valve 11, the body of a gun 8 leading portion welds with rifle head 1, the body of a gun 8 is connected with vacuum breaker 3.
Vacuum breaker 3 is connected with the body of a gun 8 by assembly, its structure comprises pipe connecting 4, nut 5, sealing-ring 6, flange, pipe connecting 4 one end is connected with the body of a gun 8 by nut 5, the other end is connected with vacuum breaker 3, vacuum breaker 3 the other end is connected with the body of a gun 8 by ring flange 2, is provided with sealing-ring 6 between nut 5 and the body of a gun 8; Rifle head 1 is α, α with the central shaft angle of the body of a gun 8 is 4 ° ~ 10 °.
Wherein, rifle head 1 inwall is lined with the pottery 14 of thickness 1.5mm ~ 3mm.Pipe connecting 4 is connected with tack bolt 13.Pipe connecting 4 one end is the pyramidal structure of radial fluting.
Spray and rob by bolt, ring flange 2 and the Flange joint be fixed on blast-furnace tuyere, realize the object that fixing injection is robbed.There is anti-oxidant, high temperature resistant, wear-resisting fine and close lined ceramics 14 in rifle head 1, form ceramic layer, best, ceramic layer thickness is 2mm, and rifle head 1 is the body of a gun 8 angle [alpha]=6 ° relatively.In practical application, this injection robbed use after 40 days, and performance test still meets production requirement.
Claims (5)
1. a blast furnace coal dust spray gun, it is characterized in that, comprise hydraulic quick coupler, connecting tee, a ball valve, No. two ball valves, the body of a gun, sleeve pipe, vacuum breaker, rifle heads, rapid-acting coupling, connecting tee, No. two ball valves, sleeve pipe, the body of a guies connect successively, connecting tee is connected with a ball valve, body of a gun leading portion welds with rifle head, and the body of a gun is connected with vacuum breaker.
2. a kind of blast furnace coal dust spray gun according to claim 1, it is characterized in that, also comprise pipe connecting, nut, sealing-ring, ring flange, pipe connecting one end is connected with the body of a gun by nut, the other end is connected with vacuum breaker, the vacuum breaker the other end is connected with the body of a gun by ring flange, is provided with sealing-ring between nut and the body of a gun.
3. a kind of blast furnace coal dust spray gun according to claim 1, is characterized in that, described rifle head and the central shaft angle of the body of a gun are α, α is 4 ° ~ 10 °.
4. a kind of blast furnace coal dust spray gun according to claim 1, is characterized in that, described rifle head inwall is lined with the pottery of thickness 1.5mm ~ 3mm.
5. a kind of blast furnace coal dust spray gun according to claim 1, is characterized in that, described pipe connecting is connected with tack bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520637056.8U CN204874568U (en) | 2015-08-21 | 2015-08-21 | Buggy spray gun for blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520637056.8U CN204874568U (en) | 2015-08-21 | 2015-08-21 | Buggy spray gun for blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204874568U true CN204874568U (en) | 2015-12-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520637056.8U Active CN204874568U (en) | 2015-08-21 | 2015-08-21 | Buggy spray gun for blast furnace |
Country Status (1)
| Country | Link |
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| CN (1) | CN204874568U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115896382A (en) * | 2022-10-25 | 2023-04-04 | 新疆八一钢铁股份有限公司 | Ou metallurgical furnace tuyere coal injection gun device capable of being continuously used after burning loss and use method thereof |
-
2015
- 2015-08-21 CN CN201520637056.8U patent/CN204874568U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115896382A (en) * | 2022-10-25 | 2023-04-04 | 新疆八一钢铁股份有限公司 | Ou metallurgical furnace tuyere coal injection gun device capable of being continuously used after burning loss and use method thereof |
| CN115896382B (en) * | 2022-10-25 | 2023-11-10 | 新疆八一钢铁股份有限公司 | Continuous-use coal injection gun device for air port of European smelting furnace after burning loss and use method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |