CN201545854U - Coal power spray gun for blowing split type iron making blast furnace - Google Patents
Coal power spray gun for blowing split type iron making blast furnace Download PDFInfo
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- CN201545854U CN201545854U CN2009202066101U CN200920206610U CN201545854U CN 201545854 U CN201545854 U CN 201545854U CN 2009202066101 U CN2009202066101 U CN 2009202066101U CN 200920206610 U CN200920206610 U CN 200920206610U CN 201545854 U CN201545854 U CN 201545854U
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- gun
- spray gun
- blast furnace
- split type
- type iron
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Abstract
The utility model discloses a coal power spray gun for blowing a split type iron making blast furnace. The coal power spray gun comprises a gun body and a gun head and is characterized in that the gun head is connected with the front part of the gun body through a connection piece; the connection piece for connecting the gun body and the gun head is positioned in the intersecting position of a spray gun inserting pipe and a belly pipe of an air delivering branch pipe of a blast furnace and also positioned on one side of the spray gun inserting pipe. By adopting the spray gun, the scrapping of the whole spray gun or excessive work in welding a new gun head after the cutting of the gun head can be avoided, thereby reducing the labor intensity of operators. The gun body and the gun head of the spray gun can select materials according to operation environment, as the service life of the gun head is short, if the gun body and the gun head adopt better materials, the service life of the spray gun can be prolonged, but the cost of equipment is increased slightly, thereby greatly saving the cost.
Description
Technical field
The utility model relates to a kind of coal powder injection device, relates in particular to a kind of split type iron-smelting blast furnace coal suitable for blowing powder spray gun, is used for coal injection in iron making blast furnace.
Background technology
The iron-smelting blast furnace coal powder injection is the gordian technique of saving energy and reduce the cost, increasing economic efficiency, and substitutes poor day by day and expensive coke significantly with cheap raw coal, thereby significantly reduces production costs, for enterprise brings direct economic benefit.Iron-smelting blast furnace coal suitable for blowing powder spray gun is a key equipment of blast furnace PCI technology, and the quality of its work will directly have influence on the production and the economic benefit thereof of iron-smelting blast furnace.
Pulverized coal gun is to be used for the device of combusting coal fines, coal dust is sent to the ironmaking tuyere of blast furnace place by belly pipe, afterfire contacts with the pyritous hot blast, the rifle head length phase is operated under the 1000-1200 ℃ of high temperature, general material its intensity, wear resistance, thermotolerance, oxidation-resistance under this temperature all reduce greatly, so the life-span of spray gun is short, change frequent, labor strength is big, has finally increased the iron-smelting blast furnace smelting cost.
At present, a lot of metallargists is being devoted to study the life-span of how to improve spray gun, and obtained certain effect, provide a kind of infiltration layer firm difficult drop-off such as Chinese patent 98111363.X, coal spouting gun is increased substantially work-ing life, and manufacture craft is simple, composite cementation coal spouting gun and manufacture craft thereof with low cost; Chinese patent ZL98249230.8 provides a kind of long service life, the simple monomer of mechanism from cooling off the blast furnace spray gun; Chinese patent ZL200720011861.5 provides a kind of supercharging wear-resisting coal spouting gun, can reach high life, big jetting pressure, not grind the effect in air port; Chinese patent ZL200720084055.0 provides a kind of two-tube ceramic-lined pulverized coal gun; Chinese patent ZL00212256.1 provides a kind of fire-resistant oxidation resistant and inwall to have the coal spouting gun of antifriction metal (AFM) liner; Though these patents are brought up to 2-3 month with the mean lifetime of pulverized coal gun from about two weeks, What is more brings up to half a year to one year,, this life-span, still very short, spray gun still belonged to consumable accessory with respect to the iron-smelting blast furnace miscellaneous equipment, and consumption is bigger; In addition, these patents are not all considered being convenient for changing of pulverized coal gun and the problem of how to save consumptive material.
Summary of the invention
There is the deficiency that the life-span is short, replacing is frequent, consumption is big at existing pulverized coal gun, the purpose of this utility model is to provide a kind of split type iron-smelting blast furnace coal suitable for blowing powder spray gun, it only can realize the replacing to the rifle head of serious wear, thereby reach the effect of saving cost, realize the replacing quickly and easily of rifle head simultaneously, thereby reach the effect that alleviates working strength of workers.
A kind of split type iron-smelting blast furnace coal suitable for blowing powder spray gun described in the utility model comprises the body of a gun, rifle head, and it is characterized in that: the rifle head is connected with the front portion of the body of a gun by web member.
Described a kind of split type iron-smelting blast furnace coal suitable for blowing powder spray gun is characterized in that: the web member that connects the body of a gun and rifle head is located at the belly pipe intersection that spray gun is inserted gun barrel and blast branch pipe of blast furnace, and is positioned at slotting gun barrel one side of spray gun.
Described a kind of split type iron-smelting blast furnace coal suitable for blowing powder spray gun, its web member and the body of a gun and rifle head are for being threaded.
Described a kind of split type iron-smelting blast furnace coal suitable for blowing powder spray gun, its body of a gun can adopt different materials with the rifle head.Because body of a gun operating ambient temperature is relatively low, select for use common heat-resistance stainless steel to get final product, and rifle head operating ambient temperature is very high, therefore need select high temperature resistant, anti-oxidant strong heat-resistance stainless steel for use, or have the special substance of wear-proof metal ceramic layer.Because the rifle head is very short, adopt the higher material of class, the life-span that can improve spray gun, but the cost increase of equipment is less, therefore provides cost savings expense greatly.
Described a kind of split type iron-smelting blast furnace coal suitable for blowing powder spray gun, its described web member is made up of tapped sleeve pipe and the loosening spacing ring of restriction.
To wear and tear faster by web member, the rifle head couples together with the slower body of a gun of wearing and tearing, the rifle head is in the high-temperature hot-air, the body of a gun and web member are in the spray gun that does not have air current flow and insert in the gun barrel, because rifle head scaling loss in high temperature is serious and also very serious by the wearing and tearing of coal dust, so damage soon, and the body of a gun and web member are arranged in the air-flow dead band, and temperature is corresponding lower, so it is not easy to damage.When the rifle head damages, only need from web member, the rifle head to be screwed down, load onto a standby rifle head then, this spray gun can continue to use, and need not change the body of a gun.Like this, independent by the web member slower body of a gun of rifle head faster and wearing and tearing that will wear and tear, form and divide body structure, change quickly and easily to realize the rifle head, alleviate working strength of workers.
The beneficial effects of the utility model are:
(1) adopts this spray gun can avoid whole spray gun to scrap, or slice off the rifle head, and then weld the extensive work that a rifle headband comes again, thereby alleviated working strength of workers;
(2) adopt the body of a gun of this spray gun and rifle head can select material under the relevant work environment for use,, adopt the higher material of class because the rifle head life-span is very short, the life-span that can improve spray gun, but the cost increase of equipment is less, therefore provides cost savings expense greatly.
Description of drawings
Fig. 1 is the structural representation of the split type blast furnace injection coal powder of the utility model spray gun.
Fig. 2 is the enlarged diagram of the A portion (web member) 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.
Referring to Fig. 1 and Fig. 2, a kind of split type iron-smelting blast furnace coal suitable for blowing powder spray gun, its body of a gun 1 is selected common heat-resistance stainless steel manufacturing for use, and rifle head 3 is selected high temperature resistant, anti-oxidant strong heat-resistance stainless steel manufacturing for use; Rifle head 3 is connected with the front portion of the body of a gun 1 by web member 2, and web member 2 and the body of a gun 1 and rifle head 3 are for being threaded; The web member 2 that connects the body of a gun and rifle head is located at belly pipe 6 intersections that spray gun is inserted gun barrel 4 and blast branch pipe of blast furnace 5, and is positioned at slotting gun barrel 4 one sides of spray gun; Described web member 2 is made up of tapped sleeve pipe 7 and the loosening spacing ring 8 of restriction.When changing the rifle head like this, only need under the state of cooling, unclamp spacing ring, the rifle head is screwed down from sleeve pipe, change standby rifle head, tighten sleeve pipe again and spacing ring gets final product.
Claims (5)
1. a split type iron-smelting blast furnace coal suitable for blowing powder spray gun comprises the body of a gun (1), rifle head (3), it is characterized in that: rifle head (3) is connected with the front portion of the body of a gun (1) by web member (2).
2. a kind of split type iron-smelting blast furnace coal suitable for blowing powder spray gun according to claim 1, it is characterized in that: the web member (2) that connects the body of a gun (1) and rifle head (3) is located at belly pipe (6) intersection that spray gun is inserted gun barrel (4) and blast branch pipe of blast furnace (5), and is positioned at slotting gun barrel (4) one sides of spray gun.
3. a kind of split type iron-smelting blast furnace coal suitable for blowing powder spray gun according to claim 1 and 2 is characterized in that: web member (2) and the body of a gun (1) and rifle head (3) are for being threaded.
4. a kind of split type iron-smelting blast furnace coal suitable for blowing powder spray gun according to claim 1 and 2, it is characterized in that: the body of a gun (1) can adopt different materials with rifle head (3).
5. a kind of split type iron-smelting blast furnace coal suitable for blowing powder spray gun according to claim 1 and 2 is characterized in that: described web member (2) is made up of tapped sleeve pipe (7) and the loosening spacing ring (8) of restriction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202066101U CN201545854U (en) | 2009-10-10 | 2009-10-10 | Coal power spray gun for blowing split type iron making blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202066101U CN201545854U (en) | 2009-10-10 | 2009-10-10 | Coal power spray gun for blowing split type iron making blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201545854U true CN201545854U (en) | 2010-08-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202066101U Expired - Fee Related CN201545854U (en) | 2009-10-10 | 2009-10-10 | Coal power spray gun for blowing split type iron making blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201545854U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106755673A (en) * | 2017-03-17 | 2017-05-31 | 中冶赛迪工程技术股份有限公司 | A kind of rotatable high furnace coal fines lance structure of shower nozzle |
| CN117265197A (en) * | 2023-10-12 | 2023-12-22 | 秦皇岛凯优科技有限公司 | Blast furnace coal injection gun with anti-drop structure |
-
2009
- 2009-10-10 CN CN2009202066101U patent/CN201545854U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106755673A (en) * | 2017-03-17 | 2017-05-31 | 中冶赛迪工程技术股份有限公司 | A kind of rotatable high furnace coal fines lance structure of shower nozzle |
| CN117265197A (en) * | 2023-10-12 | 2023-12-22 | 秦皇岛凯优科技有限公司 | Blast furnace coal injection gun with anti-drop structure |
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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: 20100811 Termination date: 20181010 |