CN211814537U - Novel blast furnace swinging spout - Google Patents
Novel blast furnace swinging spout Download PDFInfo
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- CN211814537U CN211814537U CN202020168748.3U CN202020168748U CN211814537U CN 211814537 U CN211814537 U CN 211814537U CN 202020168748 U CN202020168748 U CN 202020168748U CN 211814537 U CN211814537 U CN 211814537U
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Abstract
The utility model provides a novel blast furnace swing stem bar, includes steel sheet shell, graphite brick layer, permanent fire-resistant pouring layer, the fire-resistant pouring layer of work, water-cooling wall, bolt, nut, gasket, and steel sheet shell plays the guard action parcel outmost at whole swing stem bar, a serial communication port, the graphite brick layer is in the lower floor of swing stem bar, and the next-door neighbour steel sheet shell, permanent fire-resistant pouring layer is on the upper strata on graphite brick layer, and the fire-resistant pouring layer of work is in the superiors, and the water-cooling wall is arranged between graphite brick layer and steel sheet shell, realizes firm connection through bolt, nut, gasket. Compared with the prior art, the beneficial effects of the utility model are that: the structure is convenient, the fire resistance is excellent, the semicircular tapping working face has no negative pressure point and no surge point, the circulation is smooth, the upper and lower layered structures reduce the usage amount of expensive refractory materials, the material cost is reduced, the temperature of the tapping hole swinging spout is reduced by the design of the water cooling wall for introducing cooling water, the high-temperature erosion damage is reduced, the service life of the swinging spout is prolonged, the output amount of molten iron is increased, the yield of steel smelting is increased, and the economic benefit is increased.
Description
Technical Field
The utility model relates to a blast furnace ironmaking technical field especially relates to a novel blast furnace swing stem bar.
Background
With the development and progress of society, the large-scale trend of the blast furnace is gradually obvious, the effective volume of the blast furnace is developed from hundreds of cubic meters in the past to more than four thousand cubic meters at present, the furnace body is increased, the yield of molten iron is increased, and the iron outlet of the blast furnace is correspondingly increased. However, due to the limitation of various conditions such as furnace body, field, transportation and the like, the swing spout suitable for different hot metal ladles is needed.
As the iron output is greatly improved compared with the prior art, the erosion condition of the molten iron channel of the swing spout is increasingly aggravated, so that the cost and the workload of maintenance work are increased, the production cost of enterprises is increased, and in severe cases, the method also becomes a link for restricting the production of the blast furnace. Extending the service life of oscillating spouts, particularly internal brick linings, is becoming especially important.
The traditional swing spout mostly adopts the performance of increasing refractory materials to increase the service life of the spout, or changes the structure of the swing spout to realize the lengthening of the service life of the spout. Among the two modes, the former mode can lead to the increase of the investment cost of the swing spout, and even if the fireproof material with better material is adopted, the service life of the swing spout with a certain period can be prolonged only, the service life cannot be prolonged to a large extent, the maintenance effect is reduced, the application range can still be limited to a certain extent, the latter mode can save the cost admittedly, but the structure is complex, the manufacturing difficulty is large, the dark rotation is complex, and the application is limited greatly.
Disclosure of Invention
The utility model provides a novel blast furnace swing stem bar obtains not only economical but also practical's novel swing stem bar in order to solve various technical and economic problems that traditional swing stem bar produced, and we have done effective improvement on original swing stem bar basis. The utility model discloses a novel blast furnace swing stem bar adopts one kind to adopt the resistant material of washing away to make the working layer of swing stem bar, its simple structure, and the preparation is convenient, changes in a flexible way, adds the water-cooling wall in swing stem bar simultaneously, through the stave of water-cooling structure, derives unnecessary heat to make resistant material be in under lower operating temperature, extension swing stem bar life reduces ironmaking cost of maintenance.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a novel blast furnace swing stem bar, includes steel sheet shell, graphite brick layer, permanent fire-resistant pouring layer, the fire-resistant pouring layer of work, water-cooling wall, bolt, nut, gasket, and steel sheet shell plays the guard action parcel outmost at whole swing stem bar, a serial communication port, the graphite brick layer is in the lower floor of swing stem bar, and the next-door neighbour steel sheet shell, permanent fire-resistant pouring layer is on the upper strata on graphite brick layer, and the fire-resistant pouring layer of work is in the superiors, and the water-cooling wall is arranged between graphite brick layer and steel sheet shell, realizes firm connection through bolt, nut, gasket.
The water-cooled wall is composed of a cooling calandria for introducing cold water and a thin-wall shell, two water-cooled walls are respectively arranged on the two side wall plates of the steel plate shell, and two water-cooled walls are arranged on the bottom plate.
The diameter of the cooling calandria pipeline structure is 20mm-100mm, the length is 400mm-1000mm, the width is 200mm-700mm, and the height is 40mm-150 mm.
The cooling discharge pipe of the water wall takes industrial water as a cooling medium, and the cooling water pressure is 0.1-0.7 Mpa.
The graphite brick layer has a space capable of containing four water-cooled walls and is tightly attached to the water-cooled walls.
The permanent fireproof pouring layer is made of common fireproof materials, and is provided with a working surface for bearing the working fireproof pouring layer and is of a semicircular structure.
The working fireproof pouring layer is made of high-temperature corrosion resistant fireproof materials and is made into a semicircular structure according to the bearing surface of the permanent fireproof pouring layer.
Compared with the prior art, the beneficial effects of the utility model are that:
1) the novel blast furnace swinging spout has the advantages that the addition of the water-cooled wall of the novel blast furnace swinging spout can lead out redundant heat, reduce the working temperature of the swinging spout and reduce the thermal erosion damage to a refractory layer.
2) The novel blast furnace swinging spout has the advantages that the heat resistance of the working fireproof pouring layer material on the uppermost layer is excellent, the structure is simple, the manufacture is easy, the replacement is convenient, and the service life of the swinging spout is greatly prolonged.
3) The novel blast furnace swinging spout has the advantages that the tapping amount of the semicircular working surface of the working fireproof pouring layer is large, molten iron flows smoothly, no surge and no negative pressure point exist, the molten iron bearing time can be saved, and the smelting yield is improved.
4) The novel blast furnace swinging spout and the layered pouring method have the advantages that the using amount of high-temperature-resistant materials is saved, the material cost is saved, the maintenance workload is small, the maintenance cost is low, and the economic benefit is increased.
5) The novel blast furnace swinging spout has the advantages of strong corrosion resistance, prolonged service life, reduced production cost and contribution to enterprise development.
Drawings
FIG. 1 is a schematic view of the sectional structure layout of a novel blast furnace swinging nozzle of the present invention.
FIG. 2 is a novel blast furnace swinging nozzle axonometric drawing
FIG. 3 is a schematic view of the water wall of a novel blast furnace swinging nozzle
In the figure: 1. steel plate shell 2, graphite brick layer 3, permanent fire-resistant pouring layer 4, working fire-resistant pouring layer 5, water-cooled wall 6, bolt 7, nut 8, gasket 9, water inlet 10, water outlet 11, cooling calandria 12 thin-wall shell
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:
as shown in figures 1 and 2, a novel blast furnace swinging spout comprises a steel plate shell 1, a graphite brick layer 2, a permanent fireproof pouring layer 3, a working fireproof pouring layer 4, a water-cooled wall 5, a bolt 6, a nut 7 and a gasket 8, wherein the steel plate shell 1 plays a role of protection and is wrapped on the outermost layer of the whole swinging spout to prevent external force from damaging the water-cooled wall and a fireproof material of the swinging spout, and the novel blast furnace swinging spout is characterized in that the graphite brick layer 2 is arranged on the lower layer of the swinging spout and is close to the steel plate shell 1, heat is conducted between the working layer and the water-cooled wall, the permanent fireproof pouring layer 3 is arranged on the upper layer of the graphite brick layer 2 and is used as a support of the working fireproof pouring layer 4, the working fireproof pouring layer 4 is arranged on the uppermost layer, molten iron flows into a tank car through the working fireproof pouring layer 4, the water-cooled wall 5 is arranged between the graphite brick layer 2 and the steel plate shell 1, the heat of the swinging nozzle is reduced through heat exchange, and the service life is prolonged.
The water cooling wall 5 is composed of a cooling calandria 11 for introducing cold water and a thin-wall shell 12, the structure has large heat exchange amount and simple structure, the water cooling walls are respectively arranged on two side wall plates of the steel plate shell 1, and the two water cooling walls 5 are arranged on the bottom plate.
The diameter of the pipeline structure of the cooling calandria 11 is 20mm-100mm, the length is 400mm-1000mm, the width is 200mm-700mm, and the height is 40mm-150 mm.
The cooling discharge pipe of the water wall 5 takes industrial water as a cooling medium, and the cooling water pressure is 0.1-0.7 Mpa.
The graphite brick layer 2 has a space for containing four water-cooled walls 5, is tightly attached to the water-cooled walls 5, fixes and protects the water-cooled walls 5, and plays a role in conducting heat.
The permanent fireproof pouring layer 3 is made of common fireproof materials, the use cost of the fireproof materials is saved, the working surface for bearing the working fireproof pouring layer 4 is arranged, and the semicircular structure is beneficial to installation of the working fireproof pouring layer 4.
The working fireproof pouring layer 4 is made of high-temperature corrosion resistant fireproof materials, effectively resists high-temperature impact corrosion, prolongs the service life, and is made into a semicircular ring structure according to the bearing surface of the permanent fireproof pouring layer 4, so that the structure is simple, and the manufacturing and the replacement are convenient.
The utility model relates to a novel blast furnace swinging flow nozzle working principle is: the molten iron flows into the ladle car through the working face of the fire-resistant pouring layer 4 of work, in this in-process, the fire-resistant pouring layer 4 of work need be detained a large amount of heat energy, through the cooling water in the water-cooling wall 5, the heat energy on upper strata and low temperature carry out the heat exchange in graphite brick layer 2 and permanent fire-resistant pouring layer 3 with the heat of surplus through the mobile discharge swing stem bar of cold water, reduce the operating temperature of swing stem bar, improve the life of swing stem bar, and its layered structure, high temperature resistant refractory material's use has been reduced, and it is convenient to overhaul the replacement, the work load is little, the maintenance expense has been saved, economic benefits has been improved.
The following examples are carried out on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of the present invention is not limited to the following examples. The methods used in the following examples are conventional methods unless otherwise specified.
[ examples ] A method for producing a compound
As shown in fig. 3, the cascade type waterwalls 5 are processed according to design parameters of the waterwalls 5 for standby.
As shown in fig. 1 and 2, a steel plate case 1 of the oscillating nozzle is manufactured according to the size of the tap hole, bolt holes are formed in the side wall and the bottom plate of the steel plate case 1 according to the distance and size of the bolt holes of the water wall 5, and holes of the water inlet and the water outlet are formed according to the installation position of the water wall 5. The water-cooled wall 5 is arranged on the steel plate shell 1 through the high-temperature-resistant bolt 6, the nut 7 and the gasket 8, and a water test is carried out to ensure that water flow is smooth and reserved.
The graphite brick blocks are laid on the steel plate shell 1, the graphite brick blocks are attached to the water-cooled wall 5 in the laying process, and no cavity exists, so that heat and cold air in the water-cooled wall 5 can be replaced.
And standing the graphite brick layer 2 for 24 hours to ensure that the plastering material is condensed, pouring a common refractory material on the upper layer, pouring according to the requirement of a design drawing, reserving a semicircular bearing surface, standing for 24 hours again, and drying by using a drying furnace to form a permanent refractory pouring layer 3.
And after the drying is finished, a semicircular working refractory pouring layer 4 is poured on the permanent refractory pouring layer 3, the material is a high-temperature corrosion resistant refractory material, and the semi-circular working refractory pouring layer is placed for 24 hours after the pouring is finished and then is dried in a drying furnace.
Drying thoroughly is connected novel blast furnace swing stem bar to taphole department to insert water inlet pipe 9 with the cooling water, return water pipe inserts return water mouth 10, the switch-on cooling water, blast furnace swing stem bar begins the work of going out the molten iron promptly.
The utility model discloses in use, convenient structure, fire resistance is excellent, semi-circular tapping working face does not have the negative pressure point, no surge point, the circulation is smooth and easy, upper and lower layered structure has reduced expensive refractory material use amount, reduce the material expense, the water-cooling wall design that lets in the cooling water has reduced the temperature of tapping hole swing stem bar, high temperature erosion damage has been reduced, the life of swing stem bar has been improved, the output quantity of molten iron has been increased, the output of steel smelting has been increased, economic benefits has been increased.
Claims (7)
1. The utility model provides a novel blast furnace swing stem bar, includes steel sheet shell, graphite brick layer, permanent fire-resistant pouring layer, the fire-resistant pouring layer of work, water-cooling wall, bolt, nut, gasket, and steel sheet shell plays the guard action parcel outmost at whole swing stem bar, a serial communication port, the graphite brick layer is in the lower floor of swing stem bar, and the next-door neighbour steel sheet shell, permanent fire-resistant pouring layer is on the upper strata on graphite brick layer, and the fire-resistant pouring layer of work is in the superiors, and the water-cooling wall is arranged between graphite brick layer and steel sheet shell, realizes firm connection through bolt, nut, gasket.
2. The blast furnace oscillating nozzle according to claim 1, wherein the water-cooled wall is composed of a cooling pipe for introducing cold water and a thin-walled shell, and one water-cooled wall is disposed on each of the two side wall plates of the steel plate shell, and two water-cooled walls are disposed on the bottom plate.
3. The oscillating nozzle of blast furnace as claimed in claim 2, wherein the cooling pipes have a pipe structure with a diameter of 20mm-100mm, a length of 400mm-1000mm, a width of 200mm-700mm and a height of 40mm-150 mm.
4. The blast furnace oscillating nozzle according to claim 3, wherein industrial water is used as a cooling medium in the cooling discharge pipe, and the cooling water pressure is 0.1-0.7 MPa.
5. The blast furnace swinging nozzle according to claim 1, characterized in that the graphite brick layer has a space for holding four water-cooled walls and is tightly attached to the water-cooled walls.
6. The oscillating nozzle of blast furnace as claimed in claim 1, wherein said permanent refractory castable is of a generally refractory material and has a working surface for receiving the working refractory castable, and is of a semi-circular configuration.
7. The blast furnace oscillating nozzle according to claim 1, wherein the working refractory castable layer is made of refractory material and is made into a semicircular ring structure according to a bearing surface of the permanent refractory castable layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020168748.3U CN211814537U (en) | 2020-02-13 | 2020-02-13 | Novel blast furnace swinging spout |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020168748.3U CN211814537U (en) | 2020-02-13 | 2020-02-13 | Novel blast furnace swinging spout |
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| Publication Number | Publication Date |
|---|---|
| CN211814537U true CN211814537U (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020168748.3U Active CN211814537U (en) | 2020-02-13 | 2020-02-13 | Novel blast furnace swinging spout |
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|---|---|
| CN (1) | CN211814537U (en) |
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2020
- 2020-02-13 CN CN202020168748.3U patent/CN211814537U/en active Active
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