Bag breaking device for blanking of smelting furnace

Abstract

The utility model relates to the technical field of stainless steel smelting, and discloses a bag breaking device for blanking of a smelting furnace, which comprises a cover plate used for covering a stock bin opening and provided with a plurality of blanking holes; the number of the bag breaking cones is at least two, the at least two bag breaking cones are fixed to the cover plate and arranged in the center of the cover plate at intervals, the joints of the bag breaking cones and the cover plate are located on the peripheral wall of the blanking hole so that the blanking hole can not be shielded, and the directions of tool noses of the bag breaking cones are perpendicular to the cover plate and extend upwards. The feeding device has the beneficial effects that the cover plate and the bag breaking cone are arranged, so that the material leakage condition in the feeding process is greatly reduced, the labor intensity of personnel cleaning is reduced, and the potential safety hazards that the materials hurt people and the personnel fall into a bin are eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of stainless steel smelting, in particular to a bag breaking device for unloading materials from a smelting furnace. Background Art

[0002] LF refining furnace is an important equipment for refining outside the steelmaking furnace. Its supporting alloy silo is used for storing, weighing and conveying materials. Because the materials need to fall by gravity, alloy silos are generally located at a higher position. When adding materials to the silo, it is necessary to crane it to the upper part of the silo, and then manually cut the bag to make the material fall into the silo. There are the following disadvantages in manually cutting the bag to unload materials: 1. Personnel need to climb up a 10-meter-high silo to cut the materials; 2. Manual cutting is generally cut from the side of the bag. After cutting, the material generally falls from one side. A small amount of material cannot fall into the silo and needs to be cleaned manually; 3. Manual cutting of materials has the risk of being hit by falling materials or stepping on air and falling into the silo. Utility Model Content

[0003] The utility model aims to provide a bag breaking device for unloading materials from a smelting furnace, so as to solve the problems in the above-mentioned background technology that materials are easily lost during manual cutting or personnel are easily injured by materials or fall into the silo.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A bag breaking device for unloading a smelting furnace, comprising:

[0006] A cover plate, which is used to cover the silo opening and has a plurality of drop holes;

[0007] The bag breaking cones are at least two in number, at least two of which are fixed to the cover plate and spaced apart at the center of the cover plate, the connection between the bag breaking cone and the cover plate is located on the peripheral wall of the blanking hole so as not to block the blanking hole, and the tip of the bag breaking cone is perpendicular to the cover plate and extends upward.

[0008] Furthermore, the bag breaking cone comprises a supporting section and a conical knife tip, and the conical knife tip is connected to the cover plate via the supporting section.

[0009] Furthermore, the conical blade tip is in the shape of a quadrangular pyramid or a triangular pyramid.

[0010] Furthermore, the support section is in the shape of a quadrangular pyramid or a triangular pyramid.

[0011] Furthermore, the cover plate includes strip grids and reinforcing ribs; the strip grids are arrayed along a first direction to form a strip grid portion corresponding to the silo opening, the reinforcing ribs are located on the midline of the strip grid portion along the first direction to separate the strip grid portion into a plurality of blanking holes, and the bag breaking cone is fixed on the intersection line of the strip grid portion and the reinforcing ribs, and the first direction is the length or width direction of the silo opening.

[0012] Furthermore, it also includes supporting legs, which are located at the four corners of the strip grid part to fix the strip grid part at the silo opening.

[0013] Furthermore, the cover plate is circular and includes an annular grid portion and reinforcing ribs, the annular grid portion corresponds to the silo opening, the reinforcing ribs are evenly distributed on the annular grid portion along the diameter of the annular grid portion to separate the annular grid portion into a plurality of blanking holes, and the bag breaking cone is fixed on the intersection line of the annular grid portion and the reinforcing ribs.

[0014] Furthermore, it also includes legs, which are distributed on the outer circumference of the annular grid portion to fix the annular grid portion at the silo opening.

[0015] Furthermore, the cover plate includes a diamond grid portion and supporting legs, the diamond grid portion corresponds to the silo opening, the diamond grid portion has a plurality of diamond-shaped blanking holes, and the supporting legs are distributed on the periphery of the diamond grid portion to fix the diamond grid portion to the silo opening.

[0016] The utility model has the following advantages over the prior art:

[0017] 1. The utility model provides a bag breaking device for unloading materials from a smelting furnace. By providing a cover plate with a material dropping hole, two or more bag breaking cones are arranged at intervals at the center of the cover plate. No personnel need to climb up to cut materials, thereby eliminating the potential safety hazards of materials injuring people and people falling into the silo. The tip of the bag breaking cone is perpendicular to the cover plate and extends upward. When the material is unloaded by a traveling crane, the bag is broken from the bottom by relying on the weight of the material itself, and the material falls into the silo from the bottom, which greatly reduces the situation of material leakage and reduces the labor intensity of personnel cleaning.

[0018] 2. The bag breaking device for unloading materials from the smelting furnace in the utility model is made of welded steel plates, and its overall structure is simple, cheap, and durable, which effectively reduces production costs and manpower investment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a bag breaking device for unloading materials from a smelting furnace in an embodiment of the utility model;

[0020] In the figure: 1. Cover plate; 2. Blanking hole; 3. Support section; 4. Conical knife tip; 5. Strip grid; 6. Reinforcement rib; 7. Support leg. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] It should be noted that, in the description of the present invention, the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0023] In addition, it should be understood that for the convenience of description, the sizes of various components shown in the drawings are not drawn according to the actual proportional relationship.

[0024] It should be noted that like reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined or described in one drawing, it will not need to be further discussed and described in detail in the description of the subsequent drawings.

[0025] Embodiment 1:

[0026] like Figure 1As shown, the utility model provides a bag breaking device for unloading materials from a smelting furnace, comprising: a cover plate 1, the cover plate 1 is used to cover the opening of the silo and has a plurality of material dropping holes 2; a bag breaking cone, the number of the bag breaking cones is two, the two bag breaking cones are fixed to the cover plate 1, and are arranged at intervals at the center of the cover plate 1, the connection between the bag breaking cone and the cover plate 1 is located on the peripheral wall of the material dropping hole 2, so as not to block the material dropping hole 2, and the tip direction of the bag breaking cone is perpendicular to the cover plate 1 and extends upward. The number of bag breaking cones is set according to actual conditions, and setting two or more bag breaking cones can play a certain supporting and fixing role for the material bag, and reduce the shaking of the material bag (because there is shaking during crane hoisting). Because the bag breaking cone is set at the center of the cover plate 1, and the tip direction of the bag breaking cone is perpendicular to the cover plate 1 and extends upward, it can reduce the material running situation and reduce the labor intensity of personnel cleaning. When in use, it is only necessary to lower the material bag of the crane to the bag breaking cone, and rely on the weight of the material itself to break the bag from the bottom, so that the material falls into the silo from the bottom. The operator can observe through the video whether the material has fallen completely. If there is any material jam, he can climb up to the silo to deal with it. There is no need to climb up to cut the material every time. The design breaks the bag from the bottom to avoid the problem of material running sideways when cutting the bag manually. It reduces the number of times people climb the silo and reduces safety hazards.

[0027] In another embodiment, the bag breaking cones may be symmetrically distributed along the central axis of the cover plate 1. This arrangement can balance and support the material bag during the bag breaking process, prevent it from being excessively tilted during the bag breaking process, and avoid material leakage.

[0028] The bag breaking device for unloading materials from the smelting furnace is made of welded steel plates as a whole. It has a simple overall structure, low cost, long service life, and basically requires no maintenance, which effectively reduces production costs and manpower investment.

[0029] like Figure 1 As shown, the bag breaking cone includes a support section 3 and a conical blade tip 4. The support section is used to connect with the cover plate, and the conical blade tip 4 is installed on the support section 3. The blade tip direction of the conical blade tip 4 is perpendicular to the cover plate 1 and extends upward. In this embodiment, the conical blade tip 4 is designed to be a quadrangular pyramid or a triangular pyramid. While cooperating with the bag breaking opening, after piercing the material bag, the material falls along the gap between the pyramids, which plays a role of separation and diversion, so that the material falls quickly and evenly. It also has a certain supporting force, reduces the degree of shaking of the material bag, and reduces material leakage. The shape of the support section corresponding to the conical blade tip 4 is also designed to be a quadrangular pyramid or a triangular pyramid. First, it is to correspond to the conical blade tip and play a role of separation and diversion. Second, the quadrangular pyramid or triangular pyramid support section 3 can be connected to the edge of the drop hole, and will not block or cover the drop hole, so that the material falls quickly and avoids jamming.

[0030] The cover plate 1 includes a strip grid 5 and a reinforcing rib 6; the strip grid 5 is arranged in an array along a first direction to form a strip grid portion corresponding to the silo opening, and the reinforcing rib 6 is located on the midline of the strip grid portion along the first direction to separate the strip grid portion into a plurality of drop holes 2, and the support section of the bag breaking cone is fixed on the intersection line of the strip grid portion and the reinforcing rib 6 to avoid blocking or covering the drop holes 2, wherein the first direction is the length or width direction of the silo opening. By providing the reinforcing rib 6, the load-bearing capacity of the cover plate 1 can be improved, and drop holes 2 of suitable sizes can be separated, which will not affect the feeding and can prevent people from falling into the silo. In specific implementation: legs 7 can also be provided at the four corners of the strip grid portion to facilitate fixing the strip grid portion to the silo opening.

[0031] The making and using method of the utility model:

[0032] 1. Use steel plates to weld a grid-shaped cover plate, the size of which can completely cover the silo opening;

[0033] 2. In the middle of the cover plate, vertically weld two "cross" cones (with cone tips), and their welding positions just coincide with the "cross" positions of the cover plate;

[0034] 3. When loading, use a crane to lift the material to the top of the vertebral body, then slowly drop it down, and let the material break through the bag by its own weight;

[0035] 4. After the bag is pierced, lift the bag, and the material can fall into the silo through the hole. However, in order to speed up the entry of materials into the silo, the bag can be pierced repeatedly. Generally, the material will fall completely after 2-3 times.

[0036] The utility model utilizes the dead weight of the material to break the material bag on the vertebral body, so that the material falls into the warehouse, which not only achieves the purpose of loading, but also reduces the labor intensity of personnel and eliminates safety hazards.

[0037] Embodiment 2:

[0038] This embodiment is the same as Embodiment 1 except for the following technical solutions:

[0039] The cover plate 1 in this embodiment is circular, and the cover plate 1 includes an annular grid portion and reinforcing ribs 6. The annular grid portion corresponds to the silo opening, and the reinforcing ribs are evenly distributed on the annular grid portion along the diameter of the annular grid portion to separate the annular grid portion into a plurality of drop holes, and the bag breaking cone is fixed on the intersection line of the annular grid portion and the reinforcing ribs. Legs are also distributed on the periphery of the annular grid portion to fix the annular grid portion to the silo opening. The cover plate in this embodiment is adapted to the circular silo opening. By providing the reinforcing ribs 6, the load-bearing capacity of the cover plate 1 can be improved, and drop holes 2 of suitable sizes can be separated, which will not affect the feeding and prevent people from falling into the silo.

[0040] Embodiment 3:

[0041] This embodiment is the same as Embodiment 1 except for the following technical solutions:

[0042] The cover plate 1 in this embodiment includes a diamond-shaped grid portion and a leg 7. The diamond-shaped grid portion corresponds to the silo opening. The diamond-shaped grid portion has a plurality of diamond-shaped drop holes. The legs are distributed on the periphery of the diamond-shaped grid portion to fix the diamond-shaped grid portion at the silo opening. The support section of the bag breaking cone is connected to the peripheral wall of the diamond-shaped drop hole. The size of the diamond-shaped drop hole 2 does not affect the feeding, and can also prevent people from falling into the silo.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bag breaking device for unloading a smelting furnace, characterized in that: include: A cover plate, the cover plate is used to cover the silo opening and has a plurality of drop holes; The bag breaking cones are at least two in number, at least two of which are fixed to the cover plate and spaced apart at the center of the cover plate, the connection between the bag breaking cone and the cover plate is located on the peripheral wall of the blanking hole so as not to block the blanking hole, and the tip of the bag breaking cone is perpendicular to the cover plate and extends upward.

2. The bag breaking device for unloading a smelting furnace according to claim 1, characterized in that: The bag breaking cone comprises a supporting section and a conical knife tip, and the conical knife tip is connected to the cover plate via the supporting section.

3. The bag breaking device for unloading a smelting furnace according to claim 2, characterized in that: The conical blade tip is in the shape of a quadrangular pyramid or a triangular pyramid.

4. The bag breaking device for unloading a smelting furnace according to claim 2 or 3, characterized in that: The support section is in a quadrangular pyramid shape or a triangular pyramid shape.

5. The bag breaking device for unloading a smelting furnace according to claim 1, characterized in that: The cover plate includes strip grids and reinforcing ribs; the strip grids are arranged in an array along a first direction to form a strip grid portion corresponding to the silo opening, the reinforcing ribs are located on the midline of the strip grid portion along the first direction to separate the strip grid portion into a plurality of blanking holes, and the bag breaking cone is fixed on the intersection line of the strip grid portion and the reinforcing ribs, and the first direction is the length or width direction of the silo opening.

6. The bag breaking device for unloading a smelting furnace according to claim 5, characterized in that: It also includes legs, which are located at the four corners of the strip grid part to fix the strip grid part at the silo opening.

7. The bag breaking device for unloading a smelting furnace according to claim 1, characterized in that: The cover plate is circular and includes an annular grid portion and reinforcing ribs. The annular grid portion corresponds to the silo opening. The reinforcing ribs are evenly distributed on the annular grid portion along the diameter of the annular grid portion to separate the annular grid portion into a plurality of blanking holes. The bag breaking cone is fixed on the intersection line of the annular grid portion and the reinforcing ribs.

8. The bag breaking device for unloading a smelting furnace according to claim 7, characterized in that: It also includes legs, which are distributed on the outer circumference of the annular grid part to fix the annular grid part at the silo opening.

9. The bag breaking device for unloading a smelting furnace according to claim 1, characterized in that: The cover plate includes a diamond-shaped grid portion and supporting legs, wherein the diamond-shaped grid portion corresponds to the silo opening, the diamond-shaped grid portion has a plurality of diamond-shaped drop holes, and the supporting legs are distributed on the periphery of the diamond-shaped grid portion to fix the diamond-shaped grid portion at the silo opening.

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