CN216039666U

CN216039666U - Blast furnace hearth tuyere temperature detection device

Info

Publication number: CN216039666U
Application number: CN202121851466.4U
Authority: CN
Inventors: 裴彦杰; 候金龙
Original assignee: Hubei Jinshenglan Metallurgical Technology Co Ltd
Current assignee: Hubei Jinshenglan Metallurgical Technology Co Ltd
Priority date: 2021-08-10
Filing date: 2021-08-10
Publication date: 2022-03-15
Anticipated expiration: 2031-08-10

Abstract

The utility model discloses a blast furnace hearth tuyere temperature detection device which comprises a sliding rod, a mounting frame, a winding shaft and a barrel, wherein the lower end of the barrel is installed on a tuyere connecting block in a threaded mode, a barrel cover is installed on the upper surface of the barrel in a threaded mode, the lower end of the inner wall of the barrel is provided with the sliding rod in a sliding mode, a spring is arranged between the upper surface of the sliding rod and the lower surface of the barrel cover, pull ropes are symmetrically installed on two sides of the upper surface of the sliding rod, the upper ends of the pull ropes penetrate through the barrel cover and are wound on the winding shaft, driving shafts are symmetrically welded at two ends of the winding shaft, the driving shafts are rotatably installed on the mounting frame, the mounting frame is fixed on the upper surface of the barrel cover through bolts, a movable cap is movably sleeved at one end, away from the winding shaft, of each driving shaft, and one end of each movable cap is movably inserted into the mounting frame. The utility model has compact structure and convenient use, is convenient for detecting the wind temperature of the wind port, can change the measurement depth according to the requirement and meets the use requirement of personnel.

Description

Blast furnace hearth tuyere temperature detection device

Technical Field

The utility model relates to the technical field of blast furnace accessories, in particular to a blast furnace hearth tuyere temperature detection device.

Background

The blast furnace tuyere is arranged on a blast furnace of an iron-making plant, high-temperature hot air blown in from the blast furnace tuyere and coke at the bottom of the blast furnace are oxidized and combusted to generate CO, the CO is reduced into iron originally existing in an oxide form in high-temperature rise, and the blast furnace tuyere has the characteristics of good conductivity, uniform cooling, high cooling efficiency, compact structure, good wear resistance and the like. Usually, the blast furnace is arranged in a furnace wall between a furnace belly and a furnace bottom, the front section of the blast furnace stretches into the furnace by 500mm, the blast furnace directly suffers from the thermal erosion of liquid iron slag and the severe abrasion of falling hot materials, the blast furnace is easy to lose efficacy, and the blast furnace stops blowing due to frequent replacement of a tuyere, so that the low yield of the blast furnace is caused.

The blast furnace tuyere is mainly made of high-purity red copper, and the tuyere has different strength, rigidity and cracking resistance, and is in different states of forging, copper plate rolling and casting. The copper plate rolled tuyere has low weight and low cost, but is easy to deform if the wall thickness is too thin and the rigidity is insufficient. The blast furnace tuyere is cooled by water to keep the tuyere body in a low-temperature state and maintain the strength and rigidity, so that the purity of copper is very important.

In the actual production process, the temperature at the blast furnace tuyere needs to be detected, and the influence of the inlet air temperature on the blast furnace convolution area is large, so the utility model is invented.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a blast furnace hearth tuyere temperature detection device which has the advantages of compact structure, convenience in use, convenience in detection of tuyere air temperature, capability of changing measurement depth according to requirements and meeting use requirements of personnel, and solves the problem that the temperature at a blast furnace tuyere needs to be detected in the actual production process, and the influence of inlet air temperature on a blast furnace convolution area is large.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a blast furnace crucible wind gap temperature-detecting device, includes slide bar, mounting bracket, rolling axle and barrel, the lower extreme screw thread of barrel is installed on the wind gap connecting block, the upper surface screw thread of barrel installs the cover, the inner wall lower extreme slidable mounting of barrel has the slide bar, be equipped with the spring between the upper surface of slide bar and the lower surface of cover, the stay cord is installed to the upper surface bilateral symmetry of slide bar, the upper end of stay cord is run through the cover and the rolling is epaxial at the rolling, the both ends symmetrical welding of rolling axle has the driving shaft, the driving shaft rotates and installs on the mounting bracket, the mounting bracket passes through the upper surface of bolt fastening at the cover, the movable cap has been cup jointed in the one end activity that the driving shaft deviates from the rolling axle, the one end activity of movable cap is pegged graft in the mounting bracket.

Preferably, the tuyere connecting block is provided with a threaded hole matched with the barrel, and the lower end of the barrel is arranged in the threaded hole in a threaded manner.

Preferably, the bottom end of the sliding rod is provided with a mounting hole, a wire groove is arranged in the sliding rod, and a wire is laid on the wire groove.

Preferably, a square groove matched with the movable cap is formed in the mounting frame, and one end of the movable cap is movably inserted into the square groove.

Preferably, the spring is slidably mounted in the barrel, and the original length of the spring is greater than the height of the barrel.

Preferably, the number of the movable caps is two, and the two movable caps are symmetrically distributed relative to the upper surface of the cylinder cover.

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

1. the blast furnace hearth tuyere temperature detection device can be arranged in a threaded hole reserved on a tuyere during the use process, an external temperature control element is arranged at the bottom end of a sliding rod and is connected with an external power supply through a lead, the wind temperature in the tuyere can be detected, when the detection depth of the tuyere needs to be increased, a movable cap can be stretched outwards to be separated from an installation frame, then the movable cap is rotated to drive a winding shaft to rotate through a driving shaft, a pull rope is unreeled at the moment, the sliding rod is gradually ejected out of a barrel under the action of the elastic force of a spring, the measurement depth of the device can be increased, after the depth is determined, the movable cap can be pressed to slide on the driving shaft and retract into the installation frame again, the rotation of the driving shaft under the action of the elastic force can be prevented through the design of a groove above the installation frame, otherwise, the driving shaft is reversely rotated, the winding shaft winds the pull rope, the slide bar retracts into the barrel again, the structure is compact, the use is convenient, the wind temperature of the wind port can be detected conveniently, the measurement depth can be changed according to the requirement, and the use requirement of personnel is met.

Drawings

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

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic top view of the present invention;

FIG. 4 is a schematic structural view of A in the rabbit 1 of the present invention.

In the figure: 1. an air port connecting block; 2. a slide bar; 3. a spring; 4. a cylinder cover; 5. a mounting frame; 6. a winding shaft; 7. a wire; 8. pulling a rope; 9. a barrel; 10. a threaded hole; 11. a movable cap; 12. a square groove; 13. a drive shaft.

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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 4, an embodiment of the present invention includes: the utility model provides a blast furnace hearth wind gap temperature-detecting device, includes slide bar 2, mounting bracket 5, rolling axle 6 and barrel 9, and the lower extreme screw thread of barrel 9 is installed on wind gap connecting block 1, offers the screw hole 10 with barrel 9 looks adaptation on the wind gap connecting block 1, and the lower extreme screw thread of barrel 9 is installed in screw hole 10, can install the device in the screw hole 10 that reserves on the wind gap.

The upper surface threaded mounting of barrel 9 has cover 4, and the inner wall lower extreme slidable mounting of barrel 9 has slide bar 2, and the bottom of slide bar 2 is equipped with the mounting hole, is equipped with the wire casing in the slide bar 2, and the wire casing upper berth is equipped with wire 7, installs external temperature control element in the bottom of slide bar 2, connects external power through wire 7, can detect the wind temperature in the wind gap.

It should be noted that the structure of the temperature control element is the existing mature technology, the working principle and the internal structure thereof are known to those skilled in the art, and the present invention only utilizes the function thereof and does not modify the internal structure thereof, therefore, detailed description is not provided herein, and those skilled in the art can make any choice according to the needs or convenience thereof.

Mounting bracket 5 passes through the bolt fastening at the upper surface of cover 4, and the one end activity that driving shaft 13 deviates from rolling shaft 6 has cup jointed movable cap 11, and the one end activity of movable cap 11 is pegged graft in mounting bracket 5, when needs increase wind gap depth of detection, and movable cap 11 is totally two, and two movable cap 11's position is symmetric distribution for the upper surface of cover 4, can outwards stretch movable cap 11 for movable cap 11 breaks away from mounting bracket 5.

Be equipped with spring 3 between the upper surface of slide bar 2 and the lower surface of cover 4, stay cord 8 is installed to the upper surface bilateral symmetry of slide bar 2, cover 4 is run through and the rolling is on rolling axle 6 in the upper end of stay cord 8, the both ends symmetrical welding of rolling axle 6 has driving shaft 13, driving shaft 13 rotates and installs on mounting bracket 5, rotate movable cap 11, make movable cap 11 drive rolling axle 6 through driving shaft 13 and rotate, at this moment stay cord 8 unreels, spring 3 slidable mounting is in barrel 9, and the original length of spring 3 is greater than the height of barrel 9, slide bar 2 is ejecting barrel 9 gradually under the spring action of spring 3, can increase the depth of measurement of the device, after the degree of depth is confirmed, can press movable cap 11, make movable cap 11 slide on driving shaft 13 and retract again in mounting bracket 5.

Offer the square groove 12 with 11 looks adaptations of activity cap on the mounting bracket 5, the one end activity of activity cap 11 is pegged graft in square groove 12, design through the square groove 12 above the mounting bracket 5, can prevent the rotation of driving shaft 13 under the elastic action, otherwise, reverse driving shaft 13, winding shaft 6 carries out the rolling to stay cord 8, slide bar 2 is retracted barrel 9 again, moreover, the steam generator is compact in structure, it is convenient to use, the wind gap wind-warm syndrome of being convenient for detects, and can vary the measurement depth according to the demand, satisfy personnel's user demand.

The working principle is as follows: the blast furnace hearth tuyere temperature detection device can be arranged in a threaded hole 10 reserved on a tuyere, an external temperature control element is arranged at the bottom end of a sliding rod 2, the device is connected with an external power supply through a lead 7, the wind temperature in the tuyere can be detected, when the detection depth of the tuyere needs to be increased, a movable cap 11 can be stretched outwards to enable the movable cap 11 to be separated from an installation frame 5, then the movable cap 11 is rotated to enable the movable cap 11 to drive a winding shaft 6 to rotate through a driving shaft 13, a pull rope 8 is unreeled at the moment, the sliding rod 2 is gradually ejected out of a barrel 9 under the elastic force of a spring 3, the measurement depth of the device can be increased, after the depth is determined, the movable cap 11 can be pressed to enable the movable cap 11 to slide on the driving shaft 13 to retract into the installation frame 5 again, and the driving shaft 13 can be prevented from rotating under the elastic force through the design of a groove 12 above the installation frame 5, conversely, the driving shaft 13 is reversely rotated, the winding shaft 6 winds the pull rope 8, and the sliding rod 2 retracts into the cylinder 9 again.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a blast furnace hearth wind gap temperature-detecting device, includes slide bar (2), mounting bracket (5), rolling axle (6) and barrel (9), its characterized in that: the lower end of the cylinder (9) is installed on the tuyere connecting block (1) in a threaded manner, the upper surface of the cylinder (9) is installed with a cylinder cover (4) in a threaded manner, a sliding rod (2) is slidably mounted at the lower end of the inner wall of the cylinder body (9), a spring (3) is arranged between the upper surface of the sliding rod (2) and the lower surface of the cylinder cover (4), pull ropes (8) are symmetrically arranged on two sides of the upper surface of the sliding rod (2), the upper end of each pull rope (8) penetrates through the cylinder cover (4) and is wound on the winding shaft (6), two ends of the winding shaft (6) are symmetrically welded with driving shafts (13), the driving shafts (13) are rotatably arranged on the mounting rack (5), the mounting rack (5) is fixed on the upper surface of the cylinder cover (4) through bolts, a movable cap (11) is movably sleeved at one end of the driving shaft (13) deviating from the winding shaft (6), one end of the movable cap (11) is movably inserted in the mounting rack (5).

2. The blast furnace hearth tuyere temperature detecting device of claim 1, characterized in that: the tuyere connecting block (1) is provided with a threaded hole (10) matched with the barrel (9), and the lower end of the barrel (9) is installed in the threaded hole (10) in a threaded manner.

3. The blast furnace hearth tuyere temperature detecting device of claim 1, characterized in that: the bottom of the slide bar (2) is provided with a mounting hole, a wire groove is arranged in the slide bar (2), and a wire (7) is laid on the wire groove.

4. The blast furnace hearth tuyere temperature detecting device of claim 1, characterized in that: a square groove (12) matched with the movable cap (11) is formed in the mounting frame (5), and one end of the movable cap (11) is movably inserted into the square groove (12).

5. The blast furnace hearth tuyere temperature detecting device of claim 1, characterized in that: the spring (3) is slidably mounted in the cylinder (9), and the original length of the spring (3) is larger than the height of the cylinder (9).

6. The blast furnace hearth tuyere temperature detecting device of claim 1, characterized in that: the number of the movable caps (11) is two, and the positions of the two movable caps (11) are symmetrically distributed relative to the upper surface of the cylinder cover (4).