CN217265840U

CN217265840U - Slag-filling-proof device for tuyere of iron-making blast furnace

Info

Publication number: CN217265840U
Application number: CN202220080311.3U
Authority: CN
Inventors: 邓勇; 邢英亮; 徐涛; 武卫国; 苏春水; 成飞; 李志辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-01-13
Filing date: 2022-01-13
Publication date: 2022-08-23
Anticipated expiration: 2032-01-13

Abstract

The utility model discloses a slag-filling-proof device for an air vent of an iron-making blast furnace, which comprises a shell, an air inlet and an air outlet, wherein one side of the shell is the air inlet, the other side of the shell is the air outlet, a first baffle is arranged at one end in the shell close to the air inlet, a second baffle is rotatably arranged on the first baffle, and matched through holes are arranged on the first baffle and the second baffle; a frame is arranged at one end, close to the air outlet, in the shell, a filter screen is arranged in the frame, and a rotating plate is hinged to one side, close to the air outlet, of the frame; an air supplement port is arranged between the first baffle plate on the side wall of the shell and the frame, and a heating rod is arranged at the air supplement port; the utility model can effectively prevent slag from being poured in the state that the air supply system stops operating, and has good protection effect on the stable production of the blast furnace.

Description

Slag-filling-proof device for tuyere of iron-making blast furnace

Technical Field

The utility model relates to a blast furnace ironmaking technical field, concretely relates to slag filling prevention device for an ironmaking blast furnace tuyere.

Background

The slag pouring at the tuyere in the blast furnace iron making refers to an accident that the blast furnace is forced to reduce the wind and even stop the wind because the high-temperature liquid slag in the blast furnace flows into the air supply device and enters the corrugated pipe and the hot blast surrounding pipe of the air supply device under severe conditions; the slag pouring situation is many, the most common reason is that the air supply system of the hot blast stove breaks down, and the slag pouring is caused by sudden shutdown.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a slag-filling-proof device for the tuyere of the iron-making blast furnace.

The utility model discloses a realize through following technical scheme:

the utility model provides an iron-smelting blast furnace tuyere prevents irritating sediment device, includes casing, air intake, air outlet, its characterized in that: one side of the shell is provided with an air inlet, the other side of the shell is provided with an air outlet, one end, close to the air inlet, in the shell is provided with a first baffle, a second baffle is rotatably arranged on the first baffle, matched through holes are formed in the first baffle and the second baffle, the through holes are arranged in a circumferential array mode, and the distance between every two adjacent through holes is larger than the diameter of each through hole; a frame is arranged at one end, close to the air outlet, in the shell, a filter screen is arranged in the frame, and a rotating plate is hinged to one side, close to the air outlet, of the frame; an air supplementing opening is arranged between the first baffle plate on the side wall of the shell and the frame, and a heating rod is installed at the air supplementing opening.

Preferably, the second baffle is circular, installs one section driven bevel gear on the second baffle, the lateral wall of casing rotates installs the knob, and fixed mounting has the initiative bevel gear on the knob, and the initiative bevel gear is engaged with driven bevel gear mutually.

Preferably, the first baffle is provided with a stroke groove with an arc-shaped end, and the second baffle is provided with a limit block matched with the stroke groove.

Preferably, the rotating plates are symmetrically arranged at two ends of the frame, the two rotating plates are matched with each other, and the rotating plates are hinged to the frame through the rebound hinges.

Preferably, the air supply opening is connected with a heating cavity, a heating rod is arranged in the heating cavity, and the heating rod is m-shaped.

The beneficial effects of the utility model are embodied in: the slag-filling-proof device for the tuyere of the iron-making blast furnace can provide short-time emergency air supply when the air supply system can not supply air due to faults, thereby preventing the slag filling accident of the blast furnace; the air supply port of the utility model is provided with an air heating device, which can ensure the air supply temperature; the utility model discloses articulated on the frame have the rotor plate, but automatic closure when the unable air feed of air feed trouble has effectively avoided irritating the sediment, has played good guard action to the stable production of blast furnace.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is an axial view of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a sectional view taken along line a of fig. 3.

Fig. 4 is a sectional view taken along line B of fig. 3.

Fig. 5 is a top view of the present invention.

Fig. 6 is a sectional view taken along the line a in fig. 5.

In the attached drawing, the air conditioner comprises a shell 1, a shell 2, an air inlet 3, an air outlet 4, a first baffle 5, a second baffle 6, a through hole 7, a driven bevel gear 8, a driving bevel gear 9, a knob 10, a stroke groove 11, a limiting block 12, a frame 13, a filter screen 14, a rotating plate 15, a heating cavity 16, a heating rod 17 and an air supplementing opening.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "lower" can encompass both an upper and a lower orientation.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The invention is explained in detail below with reference to the drawings: the utility model discloses an iron-smelting blast furnace tuyere slag-pouring prevention device, which comprises a shell 1, an air inlet 2 and an air outlet 3, wherein the air inlet 2 is connected with an air supply pipeline, the air outlet is connected with a blast furnace tuyere, one side of the shell 1 is the air inlet 2, the other side is the air outlet 3, a first baffle 4 is arranged at one end of the shell 1 close to the air inlet 2, a second baffle 5 is arranged on the first baffle 4 in a rotating way, matched through holes 6 are arranged on the first baffle 4 and the second baffle 5, the through holes 6 are arranged along a circumferential array, and the distance between two adjacent through holes 6 is greater than the diameter of the through holes 6; a frame 12 is arranged at one end of the shell 1 close to the air outlet 3, a filter screen 13 is arranged in the frame 12, and a rotating plate 14 is hinged to one side of the frame 12 close to the air outlet 3; department is equipped with air supply opening 17 between 1 lateral wall first baffle 4 of casing and frame 12, and air supply opening 17 department is connected with heating chamber 15, installs heating rod 16 in the heating chamber 15, and heating rod 16 is the m type, air supply opening 17 links to each other with high-pressure gas holder.

The second baffle 5 is circular, a section of driven bevel gear 7 is arranged on the second baffle 5, a knob 9 is rotatably arranged on the side wall of the shell 1, a driving bevel gear 8 is fixedly arranged on the knob 9, and the driving bevel gear 8 is meshed with the driven bevel gear 7; the first baffle 4 is provided with an arc-shaped stroke groove 10 at one end, the second baffle 5 is provided with a limiting block 11 matched with the stroke groove 10, and the two ends of the stroke groove respectively correspond to the same through hole position and are staggered with the through hole position, so that the opening and closing function is realized.

The rotating plates 14 are symmetrically arranged at two ends of the frame 12, the two rotating plates 14 are mutually matched, the rotating plates 14 are hinged to the frame 12 through the rebound hinges, and the rotating baffle can automatically rebound under the condition of no air supply, so that slag pouring is prevented.

The utility model discloses a theory of operation does: when the air supply system cannot supply air due to faults, the rotating plate 14 automatically rebounds and closes under the condition of no wind power pushing so as to prevent slag filling, the knob 9 is rotated to enable the positions of the through holes 6 on the first baffle plate 4 and the second baffle plate 5 to be staggered, so that the air inlet 2 is isolated from the air supplementing opening 17, then the gas in the high-pressure air storage tank is blown into the blast furnace through the air supplementing opening 17, the heating rod 16 at the air supplementing opening 17 can heat the air, and the influence of cold air blowing on iron making is avoided; the sieve 13 in the housing 1 prevents the crushed slag from falling into the housing 1 at the moment when the rotating plate 14 is opened.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. The utility model provides an iron-smelting blast furnace tuyere prevents irritating sediment device, includes casing (1), air intake (2), air outlet (3), its characterized in that: one side of the shell (1) is provided with an air inlet (2), the other side of the shell is provided with an air outlet (3), one end, close to the air inlet (2), in the shell (1) is provided with a first baffle (4), a second baffle (5) is rotatably arranged on the first baffle (4), the first baffle (4) and the second baffle (5) are provided with matched through holes (6), the through holes (6) are arrayed along the circumference, and the distance between two adjacent through holes (6) is greater than the diameter of the through holes (6); a frame (12) is installed at one end, close to the air outlet (3), in the shell (1), a filter screen (13) is installed in the frame (12), and a rotating plate (14) is hinged to one side, close to the air outlet (3), of the frame (12); an air supplement opening (17) is formed between the first baffle (4) on the side wall of the shell (1) and the frame (12), and a heating rod (16) is installed at the air supplement opening (17).

2. The anti-slag-filling device for the tuyere of the iron-making blast furnace as set forth in claim 1, wherein: second baffle (5) are circular, install one section driven bevel gear (7) on second baffle (5), the lateral wall of casing (1) rotates and installs knob (9), and fixed mounting has initiative bevel gear (8) on knob (9), and initiative bevel gear (8) and driven bevel gear (7) are engaged with each other.

3. The slag-pouring preventing device for the tuyere of the iron-making blast furnace as claimed in claim 2, wherein: the first baffle (4) is provided with an arc-shaped stroke groove (10), and the second baffle (5) is provided with a limiting block (11) matched with the stroke groove (10).

4. The slag-pouring preventing device for the tuyere of the iron-making blast furnace as claimed in claim 1, wherein: the two ends of the rotating plates (14) are symmetrically arranged on the frame (12), the two rotating plates (14) are mutually matched, and the rotating plates (14) are hinged to the frame (12) through the rebound hinges.

5. The slag-pouring preventing device for the tuyere of the iron-making blast furnace as claimed in claim 1, wherein: the air supplementing opening (17) is connected with a heating cavity (15), a heating rod (16) is installed in the heating cavity (15), and the heating rod (16) is m-shaped.