Structure for preventing grate cross beam from displacing

Abstract

The utility model provides a grate cross beam displacement prevention structure which comprises a supporting column, vertical plates extending upwards are arranged on the two sides of the upper end of the supporting column, a boss protruding upwards is arranged in the center of the surface of the supporting column between the two vertical plates, and containing grooves used for containing a cross beam are formed in the positions, located between the vertical plates, of the two sides of the boss. The cross beam is reasonable in design structure, on one hand, the cross beam can be limited in the width direction by forming the containing groove, and the cross beam can be limited in the length direction by forming the groove in the cross beam, so that in the assembling process of the cross beam and the supporting column, the positioning effect can be rapidly achieved, and the assembling efficiency is improved; the purpose of preventing the cross beam from moving in the horizontal direction can also be achieved; and on the other hand, the cross beam and the supporting columns can be further connected through the positioning pins, the problem of tilting caused by uneven stress on the upper portion of the cross beam can be solved, the installation stability of the cross beam is improved, and then the grate is prevented from being damaged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of blast furnace hot blast stove crossbeam mounting structure, concretely relates to a structure for preventing displacement of grate crossbeam. BACKGROUND

[0002] Hot blast stove is the main equipment of blast furnace ironmaking air supply system, which is filled with checker bricks. The checker bricks provide high blast temperature for blast furnace during hot blast period by heat release. The grate is a load-bearing device of the checker bricks, which is composed of a stove column, a crossbeam and a grate plate. The crossbeam is placed above the stove column, and the grate plate is placed above the crossbeam. That is, the crossbeam is located between the stove column and the grate plate. The prior art only limits the left and right displacement of the crossbeam, but does not limit the axial displacement of the crossbeam. If the grate plate is not installed flat during the installation of the grate, it will cause uneven stress on each crossbeam. In addition, the grate will be subjected to the scouring of cold air flow and the thermal expansion and cold contraction caused by alternating cold and hot conditions, which will cause the displacement of the crossbeam, thereby damaging the overall structure of the grate and even endangering the hot blast stove wall, causing the wall to collapse and seriously affecting the service life of the hot blast stove. Therefore, how to limit the displacement of the crossbeam is a technical problem that needs to be solved urgently. SUMMARY

[0003] The utility model discloses in order to solve the above-mentioned technical problem, provide a structure for preventing displacement of grate crossbeam, one aspect through setting the accommodating groove can be located to the width direction of crossbeam, through setting the recess on the crossbeam can be located to the length direction of crossbeam, make in the process of assembling of crossbeam and support column, can realize the effect of positioning quickly, improve the assembly efficiency, and also can play the purpose of preventing crossbeam from moving in the horizontal direction, another aspect, utilize the positioning pin to be further connected with crossbeam and support column, can prevent the problem of warping due to uneven stress on the crossbeam, improve the installation stability of crossbeam, prevent the damage of grate from further happening.

[0004] The utility model discloses the technical scheme adopted is: a structure for preventing displacement of grate crossbeam, comprising:

[0005] Support column, the upper end both sides position of which has the upward extension stand, the surface center position of support column between two stand has the upward protruding boss, the position of boss both sides and between stand forms the accommodating groove for accommodating crossbeam, and the first through -hole is set up on the surface of stand;

[0006] Crossbeam, which is arranged above the support column, has an H-shaped structure in cross section, the lower end of the H-shaped structure is placed in the accommodating groove, and the lower surface of the crossbeam has a recess that is recessed upward, the length direction of the recess is perpendicular to the length direction of the accommodating groove, and the support column can extend into the recess, and a second through-hole matched with the first through-hole is formed on the side surface of the crossbeam;

[0007] Positioning pin, which is disposed through the first and second through holes.

[0008] The upper end of the H-shaped structure of the cross beam is a tapered tip structure.

[0009] The positioning pin is provided with a positioning member at the end position thereof after passing through the first and second through holes, for preventing axial movement of the positioning pin.

[0010] The positioning member is a split pin.

[0011] The support column comprises a column body, a top plate and a bottom plate, the vertical plate and the boss are arranged on the top plate, the top plate and the bottom plate extend outward in the four directions of the column body, and the rib plates are arranged between the top plate and the column body and between the bottom plate and the column body.

[0012] The lower surface of the cross beam is provided with a downwardly protruding step portion, which is located between the adjacent two support columns.

[0013] The furnace grate is further provided above the cross beam.

[0014] The utility model discloses the beneficial effect that:

[0015] The utility model discloses the design structure is reasonable, one aspect through setting up accommodating groove can be limited to the width direction of cross beam, through setting up recess in cross beam can be limited to the length direction of cross beam, make in the process of cross beam and support column assembly, can realize the effect of positioning quickly, improve assembly efficiency, and also can play the purpose of preventing cross beam and move in horizontal direction, on the other hand, utilize positioning pin to be further connected with cross beam and support column, can prevent the problem of warping due to uneven stress above cross beam, improve the installation stability of cross beam, and further prevent the damage of furnace grate. DRAWINGS

[0016] Figure 1 It is the front view of the utility model;

[0017] Figure 2 It is the front view of the utility model Figure 1 ;

[0018] Figure 3 It is the side view of the utility model;

[0019] Figure 4 It is the structure diagram of support column of the utility model;

[0020] Figure 5 It is the whole installation structure diagram of support column, cross beam and furnace grate of the utility model.

[0021] Among them:

[0022] 1, support column; 101, top plate; 1011, vertical plate; 1012, first through hole; 1013, accommodating groove; 1014, boss; 102, column; 103, bottom plate; 104, rib plate;

[0023] 2, crossbeam; 201, step part; 202, groove; 203, second through hole;

[0024] 3, positioning pin;

[0025] 4, positioning member;

[0026] 5, grate. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0028] As shown in the figure, a structure for preventing displacement of a crossbeam of a grate, comprising:

[0029] The support column 1 comprises a column 102, a top plate 101 and a bottom plate 103, wherein the top plate 101 and the bottom plate 103 both extend outwardly in the direction of the four sides of the column 102, and a rib plate 104 is installed between the top plate 101 and the column 102 and between the bottom plate 103 and the column 102, and the column 102, the top plate 101, the bottom plate 103 and the rib plate 104 are integrally cast; the upper end of the support column 1 has two vertical plates 1011 extending upward, and the surface center of the support column 1 between the two vertical plates 1011 has a boss 1014 extending upward, specifically, the vertical plates 1011 and the boss 1014 are both arranged on the top plate 101, and the boss 1014 forms an accommodating groove 1013 for accommodating the crossbeam 2 at the position between the two vertical plates 1011, because the accommodating groove 1013 is arranged, after the crossbeam 2 is installed on the support column 1, the crossbeam 2 only has the freedom to move along the length direction of the accommodating groove 1013, and does not have the problem of moving along the width direction of the accommodating groove 1013; the first through hole 1012 is formed on the surface of the vertical plate 1011;

[0030] The crossbeam 2 is arranged above the support column 1, and the cross section shape is H-shaped structure, the lower end of the H-shaped structure is arranged in the accommodating groove 1013, and the lower surface of the crossbeam 2 is provided with a groove 202 which is concave upward, the length direction of the groove 202 is perpendicular to the length direction of the accommodating groove 1013, and the support column 1 can extend into the groove 202, because the accommodating groove 1013 can only limit the width direction of the crossbeam 2, and the length direction cannot be limited, therefore, the groove 202 is arranged at the lower end of the crossbeam 2, the support column 1 is arranged in the groove 202, so that the length direction of the crossbeam 2 is limited, and after the cooperation of the accommodating groove 1013, the horizontal direction of the crossbeam 2 is limited; the second through hole 203 matched with the first through hole 1012 is arranged on the side surface of the crossbeam 2.

[0031] The positioning pin 3 is arranged through the first through hole 1012 and the second through hole 203, the positioning pin 3 is arranged through the crossbeam 2 and the support column 1, so that the vertical direction of the crossbeam 2 is limited, so that when one end of the crossbeam 2 is subjected to excessive force, the other end will not be separated from the support column 1, so that the overall structure is more firm and stable, and the damage of the grate 5 is further avoided.

[0032] The upper end of the H-shaped structure of the crossbeam 2 is in the shape of a tapered tip, which is arranged to reduce the surface area of the crossbeam 2, so as to avoid the problem of accumulation of ash.

[0033] The positioning pin 3 is arranged through the first through hole 1012 and the second through hole 203, and the positioning member 4 for preventing the axial movement of the positioning pin 3 is arranged at the end position of the positioning pin 3, in this embodiment, the positioning member 4 is a split pin, the end of the positioning pin 3 can be arranged in the hole opened in the radial direction of the split pin, so as to realize the axial positioning; in other embodiments, the end of the positioning pin 3 is provided with external threads, and the positioning member 4 is a nut, and the axial positioning effect of the positioning pin 3 can also be realized by the threaded connection; in addition, the ring groove is arranged on the outer wall of the positioning pin 3 close to the end, and the axial positioning effect can be realized by arranging the elastic retaining ring for shaft in the ring groove.

[0034] The lower surface of the crossbeam 2 is provided with a stepped portion 201 which protrudes downward, and the stepped portion 201 is arranged between the two adjacent support columns 1, which is arranged mainly to make the center of gravity of the crossbeam 2 between the two support columns 1 and as low as possible, so as to be beneficial to the stability of the installation structure of the crossbeam 2.

[0035] The grate 5 is further arranged above the crossbeam 2, and the installation mode of the grate 5 and the crossbeam 2 belongs to the conventional means in the prior art, which will not be described in detail here.

[0036] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A structure for preventing displacement of the grate beam, characterized in that, The utility model relates to a kind of supporting column and crossbeam structure, including: Supporting column, the upper end of which has upwardly extending vertical plate on both sides, the surface center of the supporting column between the two vertical plates has upwardly protruding boss, the accommodating slot for accommodating crossbeam is formed at the position between the two vertical plates on both sides of boss, and first through-hole is opened in the surface of vertical plate; Crossbeam, which is arranged above the supporting column, has H-shaped structure in cross section, the lower end of H-shaped structure is placed in accommodating slot, and the lower surface of crossbeam has upwardly recessed groove, the length direction of groove is perpendicular to the length direction of accommodating slot, and supporting column can extend into groove, and second through-hole matched with first through-hole is opened in the side of crossbeam; Positioning pin, which is arranged through first through-hole and second through-hole.

2. The structure for preventing displacement of the crossbeam of the grate according to claim 1, wherein The upper end of H-shaped structure of crossbeam is conical structure.

3. The structure for preventing the displacement of the crossbeam of the grate according to claim 1, characterized in that, Positioning member for preventing axial movement of positioning pin is installed at the end position of positioning pin after passing through first through-hole and second through-hole.

4. The structure for preventing the displacement of the crossbeam of the grate according to claim 3, characterized in that, Positioning member is split pin.

5. The structure for preventing the displacement of the crossbeam of the grate according to claim 1, characterized in that, Supporting column includes column body, top plate and bottom plate, vertical plate and boss are arranged on top plate, and top plate and bottom plate both extend outward to the four directions of column body, and rib plate is installed between top plate and column body and between bottom plate and column body.

6. The structure for preventing the displacement of the crossbeam of the grate according to claim 1, characterized in that, The lower surface of crossbeam has downwardly protruding step portion, and step portion is located between adjacent two supporting columns.

7. The structure for preventing the displacement of the crossbeam of the grate according to claim 1, characterized in that, It also includes grate, which is installed above crossbeam.

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