CN215668071U - Belly pipe for air supply device of iron-making blast furnace - Google Patents
Belly pipe for air supply device of iron-making blast furnace Download PDFInfo
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- CN215668071U CN215668071U CN202122464518.9U CN202122464518U CN215668071U CN 215668071 U CN215668071 U CN 215668071U CN 202122464518 U CN202122464518 U CN 202122464518U CN 215668071 U CN215668071 U CN 215668071U
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- pipe body
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- blast furnace
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Abstract
The utility model discloses a belly pipe for an air supply device of an iron-making blast furnace, which comprises a belly pipe body, wherein an air storage sleeve is arranged on the belly pipe body close to a joint, an inflating mechanism is arranged on the outer side of the air storage sleeve, an air storage cavity is formed in the air storage sleeve, a heat insulation cavity is formed in the belly pipe body, fixing strips are arranged on two sides of the surface of the heat insulation cavity, a connecting block is arranged between the fixing strips, a through groove is formed between the air storage cavity and the heat insulation cavity, a first reset spring is arranged on the surface of the air storage cavity on the air storage sleeve, a blocking block is arranged at one end of the first reset spring, a containing groove is formed between the air storage sleeve and the belly pipe body close to the through groove, and an ejection assembly with an adjusting function is arranged on the containing groove; has the advantages that: according to the utility model, the heat insulation cavity is formed on the belly pipe body, the fixing strip and the connecting block are connected to ensure the strength of the belly pipe body, and the air storage sleeve inputs cold air to cool the belly pipe body, so that the service life of the belly pipe is ensured.
Description
Technical Field
The utility model relates to the technical field of air supply of an iron-making blast furnace, in particular to a belly pipe of an air supply device of the iron-making blast furnace.
Background
The iron-making blast furnace is a device for processing iron ore, effectively melts the iron ore into molten iron through high temperature, when carrying out high-temperature treatment on the iron ore, needs to use the air supply device, the blast furnace air supply device is a connecting piece arranged between a blast furnace hot air surrounding pipe and a blast furnace air port, high pressure and high hot air are conveyed to the blast furnace from the hot blast furnace, and the blast furnace air supply device mainly comprises a gooseneck, a branch pipe middle section, an elbow, a belly pipe and other parts.
The blowpipe is used for solving the problems that the blowpipe is overhigh in temperature and red and hot in appearance due to frequent transmission of high-temperature gas, and the service life of the blowpipe is reduced due to the fact that oxidation is easy to occur particularly close to a joint and in the air.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a belly pipe for an air supply device of an iron-making blast furnace, which solves the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: the belly pipe comprises a belly pipe body, wherein a gas storage sleeve is arranged on the belly pipe body close to a joint, an inflation mechanism is arranged on the outer side of the gas storage sleeve, a gas storage cavity is formed in the gas storage sleeve, a heat insulation cavity is formed in the belly pipe body, fixing strips are arranged on two sides of the surface of the heat insulation cavity, a connecting block is arranged between the fixing strips, a through groove is formed between the gas storage cavity and the heat insulation cavity, a first reset spring is arranged on the surface, located on the surface of the gas storage cavity, of the gas storage sleeve, a blocking block is arranged at one end of the first reset spring, a containing groove is formed between the gas storage sleeve and the belly pipe body close to the through groove, and an ejection assembly with an adjusting function is arranged on the containing groove.
Preferably, the gas storage sleeve and the belly pipe body are of an integrally formed structure, the gas storage cavity is communicated with the inflation mechanism through a connecting pipe, and the heat insulation cavity is of an annular cavity structure.
Preferably, the fixing strips are distributed in a triangular shape, a plurality of groups of fixing strips are arranged, and the plurality of groups of fixing strips are distributed circumferentially around the belly pipe body.
Preferably, the connecting blocks are arranged in a plurality and distributed along the axial direction of the belly pipe body, the through grooves are arranged in a plurality, and the through grooves are distributed circumferentially around the belly pipe body.
Preferably, the holding tank is "T" type notch structure, and with lead to the intercommunication between the groove, the surface that leads to the groove is covered to the side of sprue.
Preferably, ejecting subassembly includes the gasbag, the gasbag is connected at the opening part of holding tank through solid fixed ring, the slip joint has the kicking block on the holding tank, be provided with second reset spring between kicking block and the holding tank.
Preferably, the kicking block is "L" type blocky structure, laminate between one side of kicking block and the gasbag, the other side of kicking block extend to logical groove and with the closure block between laminate.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the heat insulation cavity is formed on the belly pipe body, the fixing strip and the connecting block are connected to ensure the strength of the belly pipe body, and the air storage sleeve inputs cold air to cool the belly pipe body, so that the service life of the belly pipe is ensured.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of the belly pipe body and gas storage sleeve of the present invention;
FIG. 3 is a cross-sectional view of the ejection assembly of the present invention;
fig. 4 is an enlarged schematic view of a portion a of fig. 3 according to the present invention.
In the figure: a belly pipe body 1; a heat insulating chamber 11; a fixing strip 12; a connecting block 13; a gas storage sleeve 2; a gas storage chamber 21; a through groove 22; an inflation mechanism 3; a first return spring 4; a blocking block 5; an accommodating tank 6; an air bag 61; a top block 62; a second return spring 63.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 4, the present invention provides a technical solution: a belly pipe for an air supply device of an iron-making blast furnace comprises a belly pipe body 1, an air storage sleeve 2 is arranged on the belly pipe body 1 close to a joint, the air storage sleeve 2 and the belly pipe body 1 are of an integrally formed structure, an inflation mechanism 3 is fixedly installed on the outer side of the air storage sleeve 2, an air storage cavity 21 is formed in the air storage sleeve 2, the air storage cavity 21 is communicated with the inflation mechanism 3 through a connecting pipe, the inflation mechanism 3 comprises an air pump and a cooling box which are common in the prior art, cold air pumped in the cooling box by the air pump enters the air storage cavity 21 through the connecting pipe, a heat insulation cavity 11 is formed in the belly pipe body 1, the heat insulation cavity 11 is of an annular cavity structure, fixing strips 12 are welded on two sides of the surface of the heat insulation cavity 11, the fixing strips 12 are distributed in a triangular shape, a plurality of groups of fixing strips 12 are arranged, the groups of fixing strips 12 are distributed circumferentially around the belly pipe body 1, and connecting blocks 13 are embedded between the fixing strips 12, connecting block 13 is provided with a plurality ofly, and arranges the distribution along belly pipe body 1 axial, and fixed strip 12 plays the guard action to the tip of connecting block 13, and the connection between fixed strip 12 and the connecting block 13 is triangular distribution simultaneously and guarantees the intensity of belly pipe body 1.
A plurality of through grooves 22 are formed between the gas storage cavity 21 and the heat insulation cavity 11, the through grooves 22 are arranged, the plurality of through grooves 22 are distributed circumferentially around the belly pipe body 1, a first reset spring 4 is fixedly connected to the surface of the gas storage cavity 21 on the gas storage sleeve 2, one end of the first reset spring 4 is fixedly connected with a blocking block 5, the side surface of the blocking block 5 covers the surface of the through groove 22, the blocking block 5 has a sealing effect on the cold air in the gas storage cavity 21, an accommodating groove 6 is formed between the gas storage sleeve 2 and the belly pipe body 1 and is close to the through groove 22, the accommodating groove 6 is of a T-shaped groove structure and is communicated with the through groove 22, an ejection assembly with an adjusting function is arranged on the accommodating groove 6, the ejection assembly comprises an air bag 61, the air bag 61 is connected to the opening of the accommodating groove 6 through a fixing ring, the air bag 61 is heated to have an expansion effect, an ejection block 62 is slidably clamped on the accommodating groove 6, the ejection block 62 is of an L-shaped block structure, laminating between one side of kicking block 62 and the gasbag 61, the projected area of kicking block 62 is less than the projected area who leads to groove 22, and the other side of kicking block 62 extends to lead to groove 22 and with the laminating between sprue 5, fixedly connected with second reset spring 63 between kicking block 62 and the holding tank 6.
The working principle is as follows: in practical use, when the belly pipe body 1 transmits high-temperature gas, the heat insulation cavity 11 can absorb the temperature of the inner wall of the belly pipe body 1, the fixing strips 12 protect the end parts of the connecting blocks 13, meanwhile, the connection between the fixing strips 12 and the connecting blocks 13 is in triangular distribution to ensure the strength of the belly pipe body 1, when the temperature of the heat insulation cavity 11 reaches a certain temperature, the high-temperature gas is transmitted to the air bags 61 through the accommodating grooves 6, the air bags 61 are heated and expanded to extrude the jacking blocks 62, the jacking blocks 62 move towards the direction away from the air bags 61, and then the jacking blocks 62 jack up the blocking blocks 5, at the moment, the first return springs 4 and the second return springs 63 are both compressed, because the projection area of the jacking blocks 62 is smaller than that of the through grooves 22, the high-temperature gas in the heat insulation cavity 11 is intersected with the cold gas in the gas storage cavity 21 through the through grooves 22, the plurality of through grooves 22 further cool the belly pipe body 1, and ensure the service life of the belly pipe, after the air supply of the iron-making blast furnace stops working, because the air bag 61 is not heated to expand any more, and under the elastic action of the first return spring 4 and the second return spring 63, the blocking block 5 and the top block 62 reset, so that the subsequent use is convenient for cooling.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A belly pipe for an air supply device of an iron-making blast furnace comprises a belly pipe body (1) and is characterized in that: a gas storage sleeve (2) is arranged on the belly pipe body (1) near the joint, an inflation mechanism (3) is arranged on the outer side of the gas storage sleeve (2), a gas storage cavity (21) is arranged in the gas storage sleeve (2), a heat insulation cavity (11) is formed in the belly pipe body (1), fixing strips (12) are arranged on two sides of the surface of the heat insulation cavity (11), connecting blocks (13) are arranged between the fixing strips (12), a through groove (22) is arranged between the gas storage cavity (21) and the heat insulation cavity (11), a first return spring (4) is arranged on the surface of the gas storage cavity (21) on the gas storage sleeve (2), one end of the first return spring (4) is provided with a blocking block (5), an accommodating groove (6) is formed between the gas storage sleeve (2) and the belly pipe body (1) and is close to the through groove (22), and an ejection assembly with an adjusting function is arranged on the accommodating groove (6).
2. A belly pipe for an ironmaking blast furnace air supply apparatus as set forth in claim 1, wherein: the gas storage sleeve (2) and the belly pipe body (1) are of an integrally formed structure, the gas storage cavity (21) is communicated with the inflation mechanism (3) through a connecting pipe, and the heat insulation cavity (11) is of an annular cavity structure.
3. A belly pipe for an ironmaking blast furnace air supply apparatus as set forth in claim 1, wherein: the fixing strips (12) are distributed in a triangular shape, a plurality of groups of fixing strips (12) are arranged, and the plurality of groups of fixing strips (12) are distributed circumferentially around the belly pipe body (1).
4. A belly pipe for an ironmaking blast furnace air supply apparatus as set forth in claim 1, wherein: the connecting blocks (13) are arranged in a plurality and distributed along the axial direction of the belly pipe body (1), the through grooves (22) are arranged in a plurality, and the through grooves (22) are distributed circumferentially around the belly pipe body (1).
5. A belly pipe for an ironmaking blast furnace air supply apparatus as set forth in claim 1, wherein: the holding tank (6) is a T-shaped notch structure and is communicated with the through groove (22), and the side surface of the plugging block (5) covers the surface of the through groove (22).
6. A belly pipe for an ironmaking blast furnace air supply apparatus as set forth in claim 1, wherein: the ejecting assembly comprises an air bag (61), the air bag (61) is connected to an opening of the accommodating groove (6) through a fixing ring, a top block (62) is connected to the accommodating groove (6) in a sliding clamping mode, and a second reset spring (63) is arranged between the top block (62) and the accommodating groove (6).
7. The belly pipe for an ironmaking blast furnace air supply apparatus according to claim 6, wherein: the jacking block (62) is of an L-shaped block structure, one side of the jacking block (62) is attached to the air bag (61), and the other side of the jacking block (62) extends to the through groove (22) and is attached to the blocking block (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122464518.9U CN215668071U (en) | 2021-10-13 | 2021-10-13 | Belly pipe for air supply device of iron-making blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122464518.9U CN215668071U (en) | 2021-10-13 | 2021-10-13 | Belly pipe for air supply device of iron-making blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215668071U true CN215668071U (en) | 2022-01-28 |
Family
ID=79968180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122464518.9U Active CN215668071U (en) | 2021-10-13 | 2021-10-13 | Belly pipe for air supply device of iron-making blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215668071U (en) |
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2021
- 2021-10-13 CN CN202122464518.9U patent/CN215668071U/en active Active
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