Improved aluminum slag feeding hopper

Abstract

The utility model relates to an improved aluminum slag feeding hopper, which belongs to the technical field of aluminum slag feeding hoppers, and comprises a first hopper and a second hopper, one side surface of the first hopper is a first inclined surface which is inclined towards the center direction of the first hopper from top to bottom in sequence; the side face, corresponding to the lower portion of the first inclined face, of the second hopper is a second inclined face sequentially inclining towards the center from top to bottom. According to the utility model, the first inclined plane is arranged below the large-area opening end of the first hopper, and the large-area opening end of the second hopper is fixed and communicated with the small-area end of the first hopper, so that aluminum slag entering the first hopper can be slowly guided into the second hopper, and the poured powdery aluminum slag can slowly and smoothly slide into the second hopper; and the second inclined plane is arranged below the large-area opening end of the second hopper, and the inclination angle of the second inclined plane is larger than that of the first inclined plane, so that a buffering effect can be achieved on sliding-in of the poured powdery aluminum slag, dust raising of the aluminum slag is effectively prevented, and the dust concentration of the aluminum slag in the hopper is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum slag feed hoppers, and particularly relates to an improved aluminum slag feed hopper. Background Art

[0002] At present, during the smelting process of a tin smelting electric furnace, the return aluminum slag is mainly poured directly through the feed inlet at the top of the furnace. Although the aluminum slag feeding work can be completed quickly, this feeding method has many drawbacks: First, the operator needs to stand on the top of the furnace and operate close to the electrode during feeding. The high voltage needs to be stopped during the feeding process, and the feeding time per shift is as long as one hour, which will greatly reduce the effective smelting time of the electric furnace; Second, when the furnace top cover is opened for feeding, high-temperature flue gas will spray out from the feed inlet, causing burns and scalds to the operators; Third, it will cause unorganized emission of the electric furnace flue gas.

[0003] In order to solve the above technical problems, a standard conical hopper was tried to complete the aluminum slag feeding work. However, if there are sparks in the aluminum slag, it may cause the explosion of aluminum slag dust during pouring, posing a serious safety hazard to the operators.

[0004] Therefore, how to design an aluminum slag feed hopper that can effectively reduce the risk of burns and scalds and can discharge smoke in an organized manner is an urgent problem to be solved by those skilled in the art. Summary of the Utility Model

[0005] The utility model provides an improved aluminum slag feed hopper to solve the technical problems that the existing aluminum slag feed hopper reduces the effective smelting time of the electric furnace and is prone to burn or scald the operators.

[0006] The technical solution of the utility model to solve the above technical problems is as follows: an improved aluminum slag feed hopper, comprising: a first hopper and a second hopper.

[0007] The large-area opening end of the first hopper is arranged upward, and one side surface thereof is a first inclined surface that slopes downward from top to bottom towards its center direction. The first inclined surface is located below the large-area opening end of the first hopper; the large-area opening end of the second hopper is arranged upward, and its large-area opening end is fixed and communicated with the small-area opening end of the first hopper. One side surface of the second hopper corresponding to the lower part of the first inclined surface is a second inclined surface that slopes downward from top to bottom towards its center direction. The second inclined surface is located below the large-area opening end of the second hopper and its inclination angle is greater than that of the first inclined surface.

[0008] The beneficial effects of the utility model are:

[0009] 1. First, a first inclined surface is arranged below the large-area opening end of the first hopper. Since the large-area opening end of the second hopper is fixed and connected to the small-area end of the first hopper, the aluminum dross entering the first hopper can be slowly introduced into the second hopper, enabling the poured powdered aluminum dross to slide in slowly and smoothly without clogging inside the hopper. Then, a second inclined surface is arranged below the large-area opening end of the second hopper. Since the inclination angle of the second inclined surface is greater than that of the first inclined surface, it can play a buffering role in the sliding of the poured powdered aluminum dross, effectively preventing aluminum dross from raising dust and reducing the aluminum dross dust concentration inside the hopper.

[0010] 2. The structural layout of the first inclined surface and the second inclined surface can arrange the large-area opening end of the first hopper and the small-area opening end of the second hopper in a staggered manner, thus avoiding the direct ejection of high-temperature flue gas from the large-area opening end of the first hopper, preventing burns to operators, and extending the effective melting time.

[0011] On the basis of the above technical solutions, the present utility model can be further improved as follows.

[0012] Further, the other side surface of the second hopper opposite to the second inclined surface is a third inclined surface that slopes downward in sequence from top to bottom away from the center of the second hopper.

[0013] Further, it further includes a feed grille, and the feed grille is sealed in the large-area opening end of the first hopper.

[0014] The beneficial effect of adopting the above is that by sealing the feed grille at the large-area opening end of the first hopper, the agglomerated aluminum dross can be blocked, reducing the blockage pressure on the screw feeder.

[0015] Further, the mesh diameter of the feed grille is 40 - 100 mm.

[0016] Further, it further includes a dust-proof baffle. The dust-proof baffle is located inside the first hopper and one side of it is fixed on the inner edge of the large-area opening end of the first hopper. The fixed point where the dust-proof baffle is fixed to the first hopper is point A. The dust-proof baffle is arranged to slope downward in sequence from near point A to far from point A, and there is a feed gap reserved between the lower end of the dust-proof baffle and the first inclined surface.

[0017] The beneficial effect of adopting the above is that by arranging an inclined dust-proof baffle inside the first hopper, the aluminum dross dust in the second hopper can be blocked, protecting the ecological environment.

[0018] Further, the inclination angle of the dust-proof baffle is 40 - 50°.

[0019] Further, the side surface of the first hopper opposite to the first inclined surface is a trapezoidal surface and the space in its upper part is smaller than that in its lower part.

[0020] Further, the inclination angle of the first inclined surface is 130 to 140°.

[0021] Further, the inclination angle of the second inclined surface is 145 to 160°.

[0022] Further, both the first hopper and the second hopper are made of Q235. Description of the Drawings

[0023] Figure 1 is a schematic three-dimensional structure diagram of an improved aluminum slag feed hopper of the present utility model;

[0024] Figure 2 is a schematic semi-planed structure diagram of an improved aluminum slag feed hopper of the present utility model.

[0025] In the drawings, the list of components represented by each reference numeral is as follows:

[0026] 1. First hopper, 11. First inclined surface, 2. Second hopper, 21. Second inclined surface, 3. Feed grille, 4. Dust-proof baffle. Detailed Embodiments

[0027] The principles and features of the present utility model will be described below with reference to the drawings. The examples given are only for explaining the present utility model and are not intended to limit the scope of the present utility model.

[0028] As Figure 2 shown, an improved aluminum slag feed hopper includes: a first hopper 1 and a second hopper 2,

[0029] The large-area opening end of the first hopper 1 is arranged upward, and one side surface thereof is a first inclined surface 11 that slopes downward from top to bottom in a direction towards its center. The first inclined surface 11 is located below the large-area opening end of the first hopper 1;

[0030] The large-area opening end of the second hopper 2 is arranged upward, and its large-area opening end is fixed and communicated with the small-area opening end of the first hopper 1. One side surface of the second hopper 2 corresponding to the lower part of the first inclined surface 11 is a second inclined surface 21 that slopes downward from top to bottom in a direction towards its center. The second inclined surface 21 is located below the large-area opening end of the second hopper 2 and its inclination angle is greater than that of the first inclined surface 11.

[0031] In some specific embodiments, the other side surface of the second hopper 2 opposite to the second inclined surface 21 is a third inclined surface that slopes downward from top to bottom in a direction away from the center of the second hopper 2.

[0032] In some specific embodiments, it may further include a feed grille 3, and the feed grille 3 is sealed in the large-area opening end of the first hopper 1.

[0033] In some specific embodiments, the mesh diameter of the feed grille 3 can be 40 to 100 mm.

[0034] In some specific embodiments, a dust-proof baffle 4 may also be included. The dust-proof baffle 4 is located inside the first hopper 1, and one side thereof is fixed to the inner edge of the large-area opening end of the first hopper 1. The fixed point where the dust-proof baffle 4 is fixed to the first hopper 1 is point A. The dust-proof baffle 4 is arranged to incline downward in sequence from near point A to away from point A. A feed gap is reserved between the low end of the dust-proof baffle 4 and the first inclined surface 11.

[0035] Specifically, the inclination angle of the dust-proof baffle 4 can be 40 to 50°.

[0036] Specifically, the side surface of the first hopper 1 opposite to the first inclined surface 11 can be a trapezoidal surface, and the space in its upper part is smaller than that in its lower part.

[0037] Specifically, the inclination angle of the first inclined surface 11 can be 130 to 140°.

[0038] Specifically, the inclination angle of the second inclined surface 21 can be 145 to 160°.

[0039] Specifically, both the first hopper 1 and the second hopper 2 can be made of Q235.

[0040] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An improved aluminum slag feeding hopper, characterized in that: include: A first hopper (1), wherein the first hopper (1) has a large-area opening end arranged upward and one side surface of the first hopper (1) is a first inclined surface (11) that is inclined sequentially from top to bottom toward the center thereof, and the first inclined surface (11) is located below the large-area opening end of the first hopper (1); A second hopper (2), wherein the large-area opening end of the second hopper (2) is arranged upward and the large-area opening end is fixed to and connected with the small-area opening end of the first hopper (1); a side surface of the second hopper (2) corresponding to the lower side of the first inclined surface (11) is a second inclined surface (21) which is inclined from top to bottom in sequence toward the center thereof; the second inclined surface (21) is located below the large-area opening end of the second hopper (2) and its inclination angle is greater than the inclination angle of the first inclined surface (11).

2. The improved aluminum slag feeding hopper according to claim 1, characterized in that: The other side surface of the second hopper (2) opposite to the second inclined surface (21) is a third inclined surface which is inclined from top to bottom in a direction away from the center of the second hopper (2).

3. The improved aluminum slag feeding hopper according to claim 1, characterized in that: It also comprises a feeding grid (3), wherein the feeding grid (3) is sealed in the large-area opening end of the first hopper (1).

4. The improved aluminum slag feeding hopper according to claim 3, characterized in that: The mesh diameter of the feed grid (3) is 40 to 100 mm.

5. The improved aluminum slag feeding hopper according to claim 1, characterized in that: It also includes a dust baffle (4), which is located in the first hopper (1) and one side of which is fixed to the inner edge of the large-area opening end of the first hopper (1), the fixing point of the dust baffle (4) and the first hopper (1) is point A, and the dust baffle (4) is arranged to be inclined downward in sequence from close to point A to away from point A, and a feeding gap is reserved between the lower end of the dust baffle (4) and the first inclined surface (11).

6. The improved aluminum slag feeding hopper according to claim 5, characterized in that: The inclination angle of the dustproof baffle (4) is 40-50°.

7. The improved aluminum slag feeding hopper according to claim 1, characterized in that: The side surface of the first hopper (1) opposite to the first inclined surface (11) is a trapezoidal surface, and the space at the upper part is smaller than the space at the lower part.

8. The improved aluminum slag feeding hopper according to claim 1, characterized in that: The inclination angle of the first inclined surface (11) is 130-140°.

9. The improved aluminum slag feeding hopper according to claim 1, characterized in that: The inclination angle of the second inclined surface (21) is 145-160°.

10. The improved aluminum slag feeding hopper according to claim 1, characterized in that: The first hopper (1) and the second hopper (2) are both made of Q235.

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