CN217297910U - Blast furnace distributing chute structure with high coal injection ratio - Google Patents

Abstract

The utility model relates to an ironmaking equipment technical field especially relates to a blast furnace cloth chute structure that coal injection ratio is high, and its technical scheme includes: chute unit and nut post, both ends are the equidistance respectively welded and are installed the link around the chute unit upper surface, chute unit cross section adopts semi-circular structural design, first trompil has been seted up to chute unit inner wall bottom equidistance, the second trompil has been seted up to both ends equidistance respectively around the chute unit inner wall, inboard movable cartridge of chute unit has the welt, welt inner wall bottom activity cartridge has the waffle slab, the equidistant welded installation of waffle slab lower surface has the nut post, waffle slab length and chute unit length phase-match. The utility model provides a current device cost of maintenance higher problem.

Description

Blast furnace distributing chute structure with high coal injection ratio

Technical Field

The utility model relates to the technical field of iron-making equipment, in particular to a blast furnace distribution chute structure with high coal injection ratio.

Background

The blast furnace burden distribution chute is one of the indispensable equipments of bell-less blast furnace ironmaking, and it is responsible for the task of finally rotating burden distribution into the furnace. However, the distribution chute still needs to bear the scouring of the furnace burden after working in the environment of high temperature, strong corrosive gas and heavy dust for a long time, so the distribution chute faces the problem that the blast furnace needs to be replaced every year.

A large number of searches show that: chinese utility model patent: application No. (CN 201721643748.9), publication No. (CN 207727102U), the utility model discloses a novel blast furnace cloth chute, including goose head body and cell body, the cell body anterior segment is provided with U type groove, and the back end is the rectangular channel, the high one end of U type groove one end is low, the one end that U type groove is low flushes with the rectangular channel capping, U type groove and rectangular channel capping all are provided with wear-resisting piece. The utility model discloses long service life, cell body wear-resisting, be convenient for maintain, low cost.

However, when the conventional device is used, once the device is worn, the whole device needs to be replaced, so that the maintenance cost is increased, and therefore, a blast furnace distribution chute structure with a high coal injection ratio is needed to solve the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a blast furnace cloth chute structure that coal injection ratio is high possesses the advantage that reduces the maintenance cost, has solved the higher problem of current device cost of maintenance.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a blast furnace cloth chute structure that coal injection ratio is high, includes chute unit and nut post, first trompil has been seted up to chute unit inner wall bottom equidistance, the second trompil has been seted up to both ends equidistance respectively around the chute unit inner wall, the inboard movable cartridge of chute unit has the welt, the inboard movable cartridge of welt inner wall bottom has the grid plate.

Preferably, the front end and the rear end of the upper surface of the chute unit are respectively provided with hanging rings in an equidistant welding mode, and the cross section of the chute unit is designed to be of a semicircular structure. Through set up the link on the chute unit upper surface to when using, the accessible link carries out fixed mounting to the chute unit.

Preferably, the welt adopts arc structural design, and both ends fixed mounting respectively has the connecting rod around the welt outer wall, connecting rod size and second trompil size phase-match, the equidistance trompil in welt bottom, the trompil position of welt bottom and the trompil position phase-match of first trompil. The lining plate is movably inserted in the chute unit through the connecting rod in the second open hole.

Preferably, the nut columns are welded on the lower surface of the grid plate at equal intervals, and the length of the grid plate is matched with that of the chute unit. Through setting up grid plate length with chute unit length the same to when using, thicken the protection through the grid plate to the inboard bottom of chute unit.

Preferably, the outer diameter of the nut column is matched with the first hole opening aperture, a mounting screw is mounted in the nut column through an internal thread, and the grid plate is fixedly mounted with the chute unit through the nut column and the mounting screw. Thereby through setting up the nut post through passing the trompil of welt bottom with the nut post and insert first trompil in to fix the installation to the net board through the installation screw, and chucking welt.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses a set up welt and grating, thereby protect the chute unit inboard through the welt, because the higher position of degree of wear is the inboard bottom of chute unit usually in the use, and then do the reinforcement processing to the bottom of chute unit through the grating, and, because the cartridge that moves about through the connecting rod during the installation of welt, thereby it is comparatively convenient when the dismouting, the nut post that the grating bottom set up simultaneously also makes the grating can fix the welt in the chute unit inboard when the installation, reached the effect that makes things convenient for the dismouting and reduce cost of maintenance.

Drawings

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

FIG. 2 is a schematic diagram of a left side view cross-sectional structure of the present invention;

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

fig. 4 is a schematic view of the top view structure of the chute unit of the present invention.

In the figure: 1. a chute unit; 2. a nut post; 3. mounting screws; 4. a grid plate; 5. a liner plate; 6. hanging a ring; 7. a connecting rod; 8. a first opening; 9. and a second opening.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to 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 end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made 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, and for example, "connected" may be either fixedly connected or 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

Referring to fig. 1 to 4, the present invention provides an embodiment: the utility model provides a blast furnace cloth chute structure that coal injection ratio is high, including chute unit 1 and nut post 2, first trompil 8 has been seted up to 1 inner wall bottom equidistance of chute unit, second trompil 9 has been seted up to both ends equidistance respectively around the 1 inner wall of chute unit, 1 inboard movable cartridge of chute unit has welt 5, welt 5 adopts arc structural design, both ends fixed mounting respectively has connecting rod 7 around the 5 outer walls of welt, connecting rod 7 size and the 9 size phase-matches of second trompil, 5 bottom equidistance trompils of welt, the trompil position of 5 bottoms of welt and the trompil position phase-match of first trompil 8. The lining plate 5 is movably inserted in the chute unit 1 through the connecting rod 7 by inserting the connecting rod 7 in the second opening 9. The bottom end of the inner wall of the lining plate 5 is movably inserted with a grid plate 4. The nut columns 2 are welded on the lower surface of the grid plate 4 at equal intervals, and the length of the grid plate 4 is matched with that of the chute unit 1. Through 4 length settings with the net board with chute unit 1 length the same to when using, thicken the protection through net board 4 to chute unit 1 inboard bottom. Through setting up welt 5 and grid plate 4, thereby protect 1 inboard chute unit through welt 5, because the higher position of degree of wear is the inboard bottom of chute unit 1 usually in the use, and then do the reinforcement processing to chute unit 1's bottom through grid plate 4, and, because the cartridge that moves about through connecting rod 7 during the installation of welt 5, thereby it is comparatively convenient when the dismouting, nut post 2 that the 4 bottom of grid plate set up simultaneously also makes grid plate 4 can fix welt 5 in chute unit 1 inboardly when the installation, reached and made things convenient for the dismouting and reduced cost of maintenance's effect.

Example two

Referring to fig. 1 to 4, the present invention provides an embodiment of: the utility model provides a blast furnace cloth chute structure that coal injection ratio is high, compares in embodiment one, and this embodiment still includes chute unit 1 and nut post 2, and both ends are equidistance welded mounting respectively around chute unit 1 upper surface has link 6, and the design of semicircular structure is adopted to chute unit 1 cross section. Through set up link 6 at chute unit 1 upper surface to when using, accessible link 6 carries out fixed mounting to chute unit 1. First trompil 8 has been seted up to 1 inner wall bottom equidistance of chute unit, and second trompil 9 has been seted up to both ends equidistance respectively around 1 inner wall of chute unit, and 1 inboard movable cartridge of chute unit has welt 5, and 5 inner wall bottom movable cartridge of welt have grid plate 4. The outer diameter of the nut column 2 is matched with the aperture of the first opening 8, the nut column 2 is internally threaded with the mounting screw 3, and the grid plate 4 is fixedly mounted with the chute unit 1 through the nut column 2 and the mounting screw 3. The nut column 2 is arranged, so that the nut column 2 passes through the opening at the bottom end of the lining plate 5 and is inserted into the first opening 8, so that the grid plate 4 is fixedly installed through the installation screw 3, and the lining plate 5 is clamped.

The working principle is as follows: the utility model discloses during the use, pass through 7 movable cartridges of connecting rod with welt 5 in chute unit 1, and place the waffle slab 4 that will be equipped with nut post 2 in welt 5 top, and stretch into first trompil 8, twist in nut post 2 through will installing screw 3 in chute unit 1 bottom, thereby with waffle slab 4 fixed mounting in chute unit 1, and with welt 5 fixed mounting in chute unit 1 through waffle slab 4, then when maintaining, can change alone the higher welt 5 of degree of wear.

It will be evident to those skilled in the art that the invention 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 invention 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 (5)

1. The utility model provides a blast furnace distribution chute structure that coal injection ratio is high, includes chute unit (1) and nut post (2), its characterized in that: first trompil (8) have been seted up to chute unit (1) inner wall bottom equidistance, second trompil (9) have been seted up to both ends equidistance respectively around chute unit (1) inner wall, the inboard movable cartridge of chute unit (1) has welt (5), the movable cartridge of welt (5) inner wall bottom has grid plate (4).

2. The blast furnace distribution chute structure with a high coal injection ratio as claimed in claim 1, wherein: the front end and the rear end of the upper surface of the chute unit (1) are respectively provided with a hanging ring (6) in an equidistant welding mode, and the cross section of the chute unit (1) is designed in a semicircular structure.

3. The blast furnace distribution chute structure with a high coal injection ratio as claimed in claim 1, wherein: welt (5) adopt arc structural design, and both ends fixed mounting respectively has connecting rod (7) around welt (5) outer wall, connecting rod (7) size and second trompil (9) size phase-match, and the trompil position of welt (5) bottom and the trompil position phase-match of first trompil (8) are equidistant trompil in welt (5) bottom.

4. The blast furnace distribution chute structure with a high coal injection ratio as claimed in claim 1, wherein: nut post (2) are installed in grid plate (4) lower surface equidistance welding, and grid plate (4) length and chute unit (1) length phase-match.

5. The blast furnace distribution chute structure with a high coal injection ratio as claimed in claim 1, wherein: the outer diameter of the nut column (2) is matched with the aperture of the first open hole (8), the nut column (2) is internally threaded with a mounting screw (3), and the grid plate (4) is fixedly mounted with the chute unit (1) through the nut column (2) and the mounting screw (3).

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