CN215668072U

CN215668072U - Blast furnace is blown with tight device that rises

Info

Publication number: CN215668072U
Application number: CN202122466640.XU
Authority: CN
Inventors: 张丽; 程殿臣
Original assignee: Qingdao Taixin Machinery Co ltd
Current assignee: Qingdao Taixin Machinery Co ltd
Priority date: 2021-10-13
Filing date: 2021-10-13
Publication date: 2022-01-28
Anticipated expiration: 2031-10-13

Abstract

The utility model discloses a tension device for blast furnace air supply, which comprises a first connecting pipe and a second connecting pipe for blast furnace air supply, wherein a reinforcing sleeve is inserted between the first connecting pipe and the second connecting pipe in a sliding manner, fastening screw rods are screwed on the first connecting pipe, the reinforcing sleeve and the second connecting pipe through flanges, a sliding groove is formed in a shell of the reinforcing sleeve, a transmission screw rod is arranged in the sliding groove on the shell of the reinforcing sleeve through a small bearing, a worm is arranged in the middle of the transmission screw rod, a moving block is sleeved in the sliding groove on the transmission screw rod, an accommodating groove is formed in the moving block, a fixing assembly with a limiting function is arranged in the accommodating groove, and sealing rings are arranged on two sides of the reinforcing sleeve; has the advantages that: according to the utility model, the arrangement of the reinforcing sleeve and the sealing ring prevents gas leakage in the long-time use process, and the fixing component ensures positioning in the installation process, so that the possibility of air leakage in the installation process is reduced.

Description

Blast furnace is blown with tight device that rises

Technical Field

The utility model relates to the technical field of blast furnace air supply, in particular to a tension device for blast furnace air supply.

Background

The blast furnace air supply device is a connecting piece arranged between a blast furnace hot air surrounding pipe and a blast furnace tuyere and is used for conveying high-pressure and high-heat air from the hot blast furnace to the 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.

As a belly pipe connected with a blast furnace, flanges between two connecting pipes are generally fixedly connected through bolts, but air leakage may occur in the installation process, coal gas leakage occurs in the long-time use process, and the use of blast furnace air supply is not facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a tension device for blast furnace air supply, which aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a tension device for blast furnace air supply comprises a first connecting pipe and a second connecting pipe for blast furnace air supply, wherein a reinforcing sleeve is inserted between the first connecting pipe and the second connecting pipe in a sliding manner, a fastening screw rod is screwed at the flange of the first connecting pipe, the reinforcing sleeve and the second connecting pipe, a chute is formed in the shell of the reinforcing sleeve, a transmission screw rod is arranged in the chute on the shell of the reinforcing sleeve through a small bearing, a worm is arranged in the middle of the transmission screw rod, a moving block is sleeved in the chute on the transmission screw rod, a containing groove is formed in the moving block, a fixing assembly with a limiting function is arranged in the containing groove, sealing rings are arranged on two sides of the reinforcing sleeve, fixing grooves are formed in the inner wall of the joint of the first connecting pipe and the second connecting pipe, a rotating rod is arranged on the reinforcing sleeve through the small bearing, and a limiting locking structure is arranged at the handle part of the rotating rod, and a fixed seat is arranged on the outer side of the reinforcing sleeve.

Preferably, strengthen the sleeve and take over and laminate between the second takeover with first respectively, the both ends of strengthening the sleeve are horn type opening, it is provided with a plurality ofly to tightly decide the screw rod, and a plurality of tightly decide the screw rod and be the circumference around the flange and distribute.

Preferably, the sliding grooves are arranged in a plurality of numbers and are circumferentially distributed around the reinforcing sleeve, the transmission screw is of a double-screw structure, the thread turning directions are opposite, the moving block is of a square structure and is attached to the surface of the sliding groove, and the moving block is in internal and external thread connection with the transmission screw.

Preferably, the fixed assembly comprises a butt joint block, the butt joint block is arranged on the moving block through a hinged chain, a reset spring is arranged between the butt joint block and the accommodating groove, and the butt joint block corresponds to the fixing groove in a one-to-one mode.

Preferably, two the sealing washer with respectively with first takeover and the second take over between laminate, be provided with the worm wheel on the dwang, intermeshing between worm wheel and the worm.

Preferably, the limit locking structure comprises an insertion rod which is inserted into the handle part of the rotating rod in a sliding manner, a support ring is arranged on the insertion rod, and a compression spring is arranged between the handle part of the rotating rod and the support ring.

Preferably, the fixing base is provided with a plurality of jacks, and the bottom of the inserted rod corresponds to the jacks.

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

1. according to the utility model, the reinforcing sleeve is additionally arranged between the first connecting pipe and the second connecting pipe, the arrangement of the reinforcing sleeve and the sealing ring prevents gas leakage in the long-time use process, and meanwhile, the fixing component ensures the positioning in the installation process, so that the possibility of air leakage in the installation process is reduced.

Drawings

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

FIG. 2 is a schematic view of a reinforcing sleeve according to the present invention;

FIG. 3 is an enlarged schematic view of FIG. 2 at A in accordance with the present invention;

FIG. 4 is a cross-sectional view of the present invention between the first adapter tube, the second adapter tube and the reinforcing sleeve;

fig. 5 is an enlarged schematic view of the structure of fig. 4 at B.

In the figure: a first adapter tube 1; a second adapter tube 2; a fixing groove 21; a reinforcing sleeve 3; a seal ring 31; a fastening screw rod 4; a drive screw 5; a moving block 51; the abutment block 52; a return spring 53; a worm 6; rotating the rod 7; a worm wheel 71; the insert rod 72; a support ring 73; a compression spring 74; a fixed seat 8; and an insertion hole 81.

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 5, the present invention provides a technical solution: the utility model provides a blast furnace is blown with rising and tightly installs, take over 2 including first takeover 1 and the second that is used for the blast furnace air supply, it has reinforcing sleeve 3 to slide to peg graft between 2 to take over 1 and the second, reinforcing sleeve 3 respectively with first takeover 1 and the second take over 2 between laminating, reinforcing sleeve 3's both sides all bond and have sealing washer 31, two sealing washers 31 with respectively take over 1 and the second take over 2 between laminating, including reinforcing sleeve 3 set up prevent in the long-time use that the circumstances of leaking coal gas appears in the junction between 1 and the second takeover 2 of first takeover.

The flange parts of the first connecting pipe 1, the reinforcing sleeve 3 and the second connecting pipe 2 are in threaded connection with a plurality of fastening screws 4, the fastening screws 4 are distributed circumferentially around the flange, the fastening screws 4 have a reinforcing effect on the fixation among the first connecting pipe 1, the reinforcing sleeve 3 and the second connecting pipe 2, two ends of the reinforcing sleeve 3 are in horn-shaped openings, so that gas or hot air can conveniently circulate at the joint, a sliding groove is formed in the shell of the reinforcing sleeve 3 and is provided with a plurality of sliding grooves, the sliding grooves are distributed circumferentially around the reinforcing sleeve 3, a transmission screw 5 is rotatably connected in the sliding groove through a small bearing on the shell of the reinforcing sleeve 3, the transmission screws 5 are in a double-screw structure, the thread turning directions of the transmission screws 5 are opposite, a worm 6 is welded in the middle of the transmission screw 5, the two transmission screws 5 are respectively located at two ends of the worm 6, a moving block 51 is sleeved in the sliding groove on the transmission screw 5, the moving block 51 is of a square structure and is attached to the surface of the sliding groove, the moving block 51 is prevented from rotating along with the rotation of the transmission screw 5 due to the design, and the moving block 51 is connected with the transmission screw 5 through internal and external threads.

The movable block 51 is provided with an accommodating groove, a fixing component with a limiting function is arranged in the accommodating groove, the fixing component comprises a butting block 52, the butting block 52 is rotatably connected to the movable block 51 through a hinged chain, a reset spring 53 is fixedly connected between the butting block 52 and the accommodating groove, the inner walls of the connecting parts of the first connecting pipe 1 and the second connecting pipe 2 are respectively provided with a fixing groove 21, the butting block 52 and the fixing groove 21 are in one-to-one correspondence, the reinforcing sleeve 3 is rotatably connected with a rotating rod 7 through a small bearing, a worm wheel 71 is fixedly sleeved on the rotating rod 7, the worm wheel 71 is mutually meshed with the worm 6, the handle part of the rotating rod 7 is provided with a limiting locking structure, the limiting locking structure comprises an inserting rod 72, the inserting rod 72 is slidably inserted on the handle part of the rotating rod 7, a supporting ring 73 is welded on the inserting rod 72, and a compression spring 74 is fixedly connected between the handle part of the rotating rod 7 and the supporting ring 73, the outside welding of strengthening sleeve 3 has fixing base 8, and fixing base 8 has seted up jack 81, and jack 81 is provided with a plurality ofly, and the bottom of inserted bar 72 corresponds the setting with jack 81.

The working principle is as follows: in practical use, firstly, the rotating rod 7 is held by hand to rotate and the inserting rod 72 is pulled to be separated from the inserting hole 81, the worm wheel 71 is driven to rotate, at the moment, the worm 6 and the transmission screw 5 also rotate along with the rotating rod, the moving block 51 positioned on the transmission screw 5 moves horizontally towards two sides under the guidance of the sliding groove until the moving block moves to the end part of the sliding groove, the bottom of the inserting rod 72 is inserted in the corresponding inserting hole 81 under the elastic force action of the compression spring 74 after the inserting rod 72 is loosened, the limiting and fixing of the rotating rod 7 is realized, then the reinforcing sleeve 3 is inserted in the inner side of the joint of the first connecting pipe 1, so that the side surface of the convex part of the reinforcing sleeve 3 is attached to the flange of the first connecting pipe 1, the sealing ring 31 is attached to the inner side of the first connecting pipe 1, in the inserting process, the abutting block 52 is accommodated in the accommodating groove under the extrusion action of the axial force, and when the reinforcing sleeve 3 rotates in the inner side of the first connecting pipe 1, because of the restoring deformation acting force of the return spring 53, the abutting block 52 rotates around the hinge chain to the fixing groove 21, so that the installation and positioning between the first connecting pipe 1 and the reinforcing sleeve 3 are realized, then the second connecting pipe 2 is sleeved on the reinforcing sleeve 3, so that the side surface of the convex part of the reinforcing sleeve 3 is attached to the flange of the second connecting pipe 2, the sealing ring 31 is attached to the inner side of the second connecting pipe 2, in the sleeving process, the abutting block 52 is accommodated into the accommodating groove under the extrusion action of the axial force, when the second connecting pipe 2 rotates outside the reinforcing sleeve 3, the abutting block 52 rotates around the hinge chain to the fixing groove 21 under the restoring deformation acting force of the return spring 53, so that the installation and positioning between the second connecting pipe 2 and the reinforcing sleeve 3 are realized, and finally the fastening screw rod 4 is screwed and connected to the fixing groove 21 through screwing of the first connecting pipe 1, The reinforcing sleeve 3 is mounted on the reinforcing sleeve 3 and the second adapter tube 2.

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 blast furnace is tight device that rises for air supply, includes that first takeover (1) and second takeover (2) that are used for the blast furnace air supply, its characterized in that: a reinforcing sleeve (3) is inserted between the first connecting pipe (1) and the second connecting pipe (2) in a sliding manner, a fastening screw (4) is screwed at the flange positions of the first connecting pipe (1), the reinforcing sleeve (3) and the second connecting pipe (2), fixing grooves (21) are formed in the inner wall of the joint of the first connecting pipe (1) and the second connecting pipe (2), a sliding groove is formed in the shell of the reinforcing sleeve (3), a transmission screw (5) is arranged in the sliding groove of the shell of the reinforcing sleeve (3) through a small bearing, a worm (6) is arranged in the middle of the transmission screw (5), a moving block (51) is sleeved in the sliding groove of the transmission screw (5), an accommodating groove is formed in the moving block (51), a fixing component with a limiting function is arranged in the accommodating groove, and sealing rings (31) are arranged on two sides of the reinforcing sleeve (3), strengthen being provided with dwang (7) through the little bearing on sleeve (3), the stalk portion of dwang (7) is provided with spacing locking structure, the outside of strengthening sleeve (3) is provided with fixing base (8).

2. The tension device for blast furnace air supply of claim 1, wherein: strengthen sleeve (3) and laminate between first takeover (1) and second takeover (2) respectively, the both ends of strengthening sleeve (3) are horn type opening, tightly decide screw rod (4) and be provided with a plurality ofly, a plurality of tightly decide screw rod (4) are the circumference around the flange and distribute.

3. The tension device for blast furnace air supply of claim 1, wherein: the sliding grooves are arranged in a plurality of numbers and are distributed circumferentially around the reinforcing sleeve (3), the transmission screw (5) is of a double-screw structure, the thread turning directions are opposite, the moving block (51) is of a square structure and is attached to the surface of the sliding grooves, and the moving block (51) is in internal and external thread connection with the transmission screw (5).

4. The tension device for blast furnace air supply of claim 1, wherein: the fixed component comprises a butting block (52), the butting block (52) is arranged on a moving block (51) through a hinged chain, a return spring (53) is arranged between the butting block (52) and the accommodating groove, and the butting block (52) corresponds to the fixing groove (21) one by one.

5. The tension device for blast furnace air supply of claim 1, wherein: two sealing washer (31) with take over respectively with first taking over (1) and the second take over laminate between (2), be provided with worm wheel (71) on dwang (7), intermeshing between worm wheel (71) and worm (6).

6. The tension device for blast furnace air supply of claim 1, wherein: the limiting locking structure comprises an insertion rod (72), the insertion rod (72) is inserted into the handle part of the rotating rod (7) in a sliding mode, a support ring (73) is arranged on the insertion rod (72), and a compression spring (74) is arranged between the handle part of the rotating rod (7) and the support ring (73).

7. The tension device for blast furnace air supply of claim 1, wherein: the fixing base (8) is provided with a plurality of insertion holes (81), and the bottom of the insertion rod (72) corresponds to the insertion holes (81).