CN215799675U

CN215799675U - Large-scale blast furnace tuyere cover sealing device

Info

Publication number: CN215799675U
Application number: CN202121917421.2U
Authority: CN
Inventors: 江海峰; 肖为站; 刘聚云
Original assignee: Jinding Casting Co ltd
Current assignee: Jinding Casting Co ltd
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2022-02-11
Anticipated expiration: 2031-08-16

Abstract

The utility model discloses a sealing device for a tuyere sleeve of a large-sized blast furnace, which comprises a large sleeve, wherein one end of the large sleeve is provided with a small sleeve, the inner part of the large sleeve is provided with an internal sealing sleeve for fixing and sealing the internal small sleeve, and a port sealing sleeve for sealing between a port of the large sleeve and the small sleeve is arranged between the large sleeve and the small sleeve.

Description

Large-scale blast furnace tuyere cover sealing device

Technical Field

The utility model relates to the technical field of blast furnace ironmaking, in particular to a sealing device for a tuyere sleeve of a large-scale blast furnace.

Background

A method for continuously producing liquid pig iron in a vertical reactor, i.e. a blast furnace, by using coke, iron-containing ore (natural rich lump ore, sintered ore and pellet ore) and flux (limestone and dolomite) is used for smelting steel. It is an important link in modern steel production. The modern blast furnace iron making is improved and developed by an ancient shaft furnace iron making method. Although many iron-making methods are researched and developed in various countries in the world, the method is relatively simple in process, high in yield, high in labor productivity and low in energy consumption, so that blast furnace iron-making is still the main method for modern iron-making, and the yield of the method accounts for more than 95% of the total pig iron production in the world.

Under the condition of normal operation of blast furnace workers, a large blast furnace generates more coal gas due to high pressure in the furnace and high smelting strength. In the blast furnace tuyere area, a relatively good coal gas sealing method is adopted for preventing coal gas from leaking, when the blast furnace tuyere starts to work, dust can be brought into the tuyere sleeve by high temperature in the furnace, and in long-term work, the furnace dust can enter a gap between the tuyere sleeves to corrode a sealing piece, so that the sealing part is damaged, and the damage problem of the tuyere sealing device is caused. Therefore, a sealing device for a tuyere sleeve of a large-sized blast furnace is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a sealing device for a tuyere sleeve of a large-sized blast furnace, which aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a large-scale blast furnace tuyere cover sealing device, includes the big cover, big cover one end is equipped with the little cover, the inside seal cover that is used for inside little cover fixed and sealed that is equipped with of big cover, be equipped with the port seal cover that is used for sealing between big cover port and the little cover between big cover and the little cover.

Preferably, big set of big toper port department is equipped with first installation piece, a plurality of equiangular distribution's first mounting hole is seted up to first installation piece one end, the fixed mounting groove of internal seal cover installation is seted up to first installation piece one end, the inside second mounting hole of a plurality of equiangular distribution of seting up of mounting groove, big set of little toper one end is equipped with the circular block of port seal cover installation, the joint groove of two symmetries is seted up in the circular block outside, the joint groove is used for port seal cover joint.

Preferably, the big conical end of little cover is equipped with the stopper, the stopper sets up for annular round, and is used for blocking little cover inside the big cover, the stopper outside is equipped with the inclined plane for the inside shape installation of cooperation big cover.

Preferably, the internal sealing sleeve comprises a conical inner sleeve connected inside the large sleeve, a small conical port of the conical inner sleeve is in contact with one end of a small upper sleeve upper limiting block and is used for propping against the small sleeve, a second mounting block connected inside the mounting groove is arranged at the large conical port of the conical inner sleeve, a plurality of third mounting holes distributed at equal angles are formed in the second mounting block, and the third mounting holes correspond to the second mounting holes one to one.

Preferably, the port sealing sleeve comprises a circular sleeve connected to the outer side of the circular block, one end of the circular sleeve is provided with a baffle for sealing, the inner side of the baffle is tightly attached to the outer side of the small sleeve, and two clamping blocks matched with the clamping grooves are arranged on the inner side of the circular sleeve.

Compared with the prior art, the utility model has the beneficial effects that:

1. the inner sealing sleeve is arranged inside the large sleeve and used for fixing the small sleeve inside the large sleeve and sealing the small sleeve and the large sleeve, and the port sealing sleeve is arranged at the tapered port of the large sleeve and used for sealing and clamping the joint of the large sleeve and the small sleeve.

2. The large sleeve is provided with a first mounting block and a first mounting hole for mounting the whole air port sleeve, one end of the first mounting block is provided with a mounting groove and a second mounting hole for fixedly mounting an internal sealing sleeve, a conical port of the large sleeve is provided with a circular block and a clamping groove outside the circular block for fixedly mounting the port sealing sleeve, one end of the small sleeve is provided with a limiting block and an inclined plane is arranged outside the limiting block for clamping the small sleeve into the inside of the large sleeve for sealing.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of the large sleeve of the present invention;

FIG. 3 is a schematic view of the structure of the small sleeve of the present invention;

FIG. 4 is a schematic view of the inner seal housing of the present invention;

FIG. 5 is a schematic view of a port seal cartridge according to the present invention.

In the figure: 1-large sleeve; 2-small sleeve; 3-internal sealing sleeve; 4-port gland; 11-a first mounting block; 12-a first mounting hole; 13-mounting grooves; 14-a second mounting hole; 15-round piece; 16-a clamping groove; 21-a limiting block; 22-inclined plane; 31-a tapered inner sleeve; 32-a second mounting block; 33-a third mounting hole; 41-circular sleeve; 42-a baffle plate; 43-a clamping block.

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. 1-5, the present invention provides a technical solution: a sealing device for a tuyere block of a large-scale blast furnace is characterized in that an inner sealing sleeve 3 is arranged in a large sleeve 1 and used for fixing a small sleeve 2 in the large sleeve 1 and sealing between the small sleeve 2 and the large sleeve 1, a port sealing sleeve 4 is arranged at a conical port of the large sleeve 1 and used for sealing and clamping the joint of the port of the large sleeve 1 and the port of the small sleeve 2, a first mounting block 11 and a first mounting hole 12 are arranged on the large sleeve 1 and used for mounting the whole tuyere block, one end of the first mounting block 11 is provided with a mounting groove 13 and a second mounting hole 14 and used for fixedly mounting the inner sealing sleeve 3, a round block 15 and a clamping groove 16 outside the round block 15 are arranged at the conical port of the large sleeve 1 and used for fixedly mounting the port sealing sleeve 4, a limiting block 21 and a limiting block 22 are arranged at one end of the small sleeve 2 and used for clamping the small sleeve 2 into the large sleeve 1 for sealing, through the cooperation between these several kinds of structures, solved current large-scale blast furnace when using, the inside ash that advances of wind gap cover connecting seam is easily caused the problem of wind gap cover damage by the stove ash erosion.

This large-scale blast furnace tuyere cover sealing device includes big cover 1, and 1 inside one end in big cover is connected with little cover 2, and 1 inboard in big cover is connected with and is used for the inside little cover 2 fixed and sealed internal seal cover 3, is connected with between big cover 1 and the little cover 2 to be used for the port seal cover 4 sealed between 1 port in big cover and the little cover 2.

Big cover 1 is the toper, 1 big toper port of big cover is connected with first installation piece 11, set up a plurality of equiangular distribution's first mounting hole 12 on the first installation piece 11, the mounting groove 13 that 3 connection usefulness of internal seal cover were seted up to 11 one end inboards of first installation piece, mounting groove 13 is inside to be seted up a plurality of equiangular distribution's second mounting hole 14, second mounting hole 14 is used for 3 fixed usefulness of internal seal cover, 1 little toper one end of big cover is connected with circular block 15, circular block 15 shape is the cylinder, the joint groove 16 of two symmetries is seted up in the circular block 15 outside, joint groove 16 is used for port seal cover 4 to connect fixedly.

The big toper one end of little cover 2 is connected with stopper 21, and stopper 21 is used for little cover 2 to embolia 1 inboard of big cover, can restrict the position of little cover 2, and the stopper 21 outside is equipped with inclined plane 22, and inclined plane 22 corresponds with 1 inboard arc surface of big cover, and little cover 2 is packed into from 1 big toper one end of big cover, and until stopper 21 outer inclined plane 22 blocks with 1 internal contact of big cover, and then it is inboard to link into big cover 1 with internal seal cover 3.

The internal seal cover 3 is including connecting at the inboard toper endotheca 31 of big cover 1, the little toper one end of toper endotheca 31 is connected with spacing piece 21 one end on the little cover 2, the big toper one end of toper endotheca 31 is connected with second installation piece 32, second installation piece 32 is connected inside mounting groove 13, set up a plurality of equiangular distribution's third mounting hole 33 on the second installation piece 32, third mounting hole 33 and second mounting hole 14 one-to-one, fix internal seal cover 3 at 1 inboard of big cover through second mounting hole 14 and third mounting hole 33, and fix little cover 2 at 1 inboard of big cover.

The port sealing sleeve 4 comprises a circular sleeve 41 connected to the outer side of the circular block 15, one end of the circular sleeve 41 is connected with a baffle 42, the inner side of the circular sleeve 41 is connected with two clamping blocks 43, the clamping blocks 43 are used for being connected to the inside of the clamping groove 16 in a clamping mode, the inner side of the baffle 42 is connected with and contacted with the arc face of the outer side of the exposed part of the small sleeve 2 and keeps sealed, and the circular sleeve 41 is rotationally clamped through the clamping blocks 43.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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

1. The utility model provides a large-scale blast furnace tuyere cover sealing device, includes big cover (1), its characterized in that: one end of the large sleeve (1) is provided with the small sleeve (2), an internal sealing sleeve (3) for fixing and sealing the small sleeve (2) is arranged inside the large sleeve (1), and a port sealing sleeve (4) for sealing between a port of the large sleeve (1) and the small sleeve (2) is arranged between the large sleeve (1) and the small sleeve (2).

2. The large-scale blast furnace tuyere cover sealing device according to claim 1, characterized in that: big cover (1) big toper port department is equipped with first installation piece (11), first mounting hole (12) of a plurality of equiangular distributions are seted up to first installation piece (11) one end, fixed mounting groove (13) of internal seal cover (3) installation are seted up to first installation piece (11) one end, inside second mounting hole (14) of a plurality of equiangular distributions of having seted up of mounting groove (13), big cover (1) little toper one end is equipped with circular block (15) of port seal cover (4) installation, joint groove (16) of two symmetries are seted up in circular block (15) outside, joint groove (16) are used for port seal cover (4) joint.

3. The large-scale blast furnace tuyere cover sealing device according to claim 1, characterized in that: the big toper one end of little cover (2) is equipped with stopper (21), stopper (21) set up for the annular round, and are used for blocking little cover (2) inside big cover (1), stopper (21) outside is equipped with inclined plane (22) for cooperate the installation of big cover (1) internal shape.

4. The large-scale blast furnace tuyere cover sealing device according to claim 2, characterized in that: interior seal cover (3) are including connecting at inside toper endotheca (31) of big cover (1), spacing piece (21) one end contact on toper endotheca (31) little toper port department and little cover (2) for withstand little cover (2), toper endotheca (31) big toper port department is equipped with second installation piece (32) of connection inside mounting groove (13), set up a plurality of equiangular distribution's third mounting hole (33) on second installation piece (32), third mounting hole (33) and second mounting hole (14) one-to-one.

5. The large-scale blast furnace tuyere cover sealing device according to claim 2, characterized in that: the port sealing sleeve (4) comprises a circular sleeve (41) connected to the outer side of the circular block (15), one end of the circular sleeve (41) is provided with a baffle (42) for sealing, the inner side of the baffle (42) is tightly attached to the outer side of the small sleeve (2), and the inner side of the circular sleeve (41) is provided with two clamping blocks (43) matched with the clamping grooves (16) for installation.