Electric arc melting furnace with feeding structure for brown aluminum oxide production

Abstract

The utility model provides an electric arc melting furnace with a feeding structure for brown fused alumina production, which comprises an electric arc melting furnace body, a brown fused alumina powder adding hopper, a rotating seat and inclined fins, and a first feeding pipe, a second feeding pipe and a third feeding pipe are mounted at the upper end of the electric arc melting furnace body in a penetrating manner at equal angles; a brown fused alumina powder adding hopper is horizontally installed at the upper ends of the first feeding pipe, the second feeding pipe and the third feeding pipe, a small servo motor is installed in the middle of the upper end in the brown fused alumina powder adding hopper in a suspended mode through a plurality of installation battens, and a brown fused alumina powder screen is horizontally fixed to the lower end of the outer side of the small servo motor. According to the uniform feeding structure designed by the utility model, the introduced brown fused alumina powder can be uniformly fed, and the larger brown fused alumina powder can be screened, so that the smelting effect of the qualified brown fused alumina powder entering an electric arc smelting furnace subsequently is ensured.

Description

Technical Field

[0001] The utility model discloses an arc melting furnace with a feeding structure for producing brown corundum, belonging to the technical field of brown corundum production equipment. Background Art

[0002] Brown corundum, also known as diamond sand, is a brown artificial corundum made by melting and reducing three raw materials, namely bauxite, carbon material and iron scraps, in an electric arc furnace. It is widely used because of its good grinding performance, wide application range and low price. In industrial production, it mostly relies on electric arc melting furnaces to complete production. The electric arc melting furnace melts the ore at high temperature through electrode discharge, and the powder enters the arc melting furnace body from the lower hopper.

[0003] However, since there is no feeding structure, the introduced brown corundum powder is prone to accumulation in the arc melting furnace, and uneven melting is prone to occur when power is turned on for melting. Now, there is an urgent need for an arc melting furnace for brown corundum production with a feeding structure to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide an arc melting furnace for brown corundum production with a feeding structure to solve the problems raised in the above-mentioned background technology. The utility model designs a uniform feeding structure, which can evenly feed the introduced brown corundum powder and can also screen the larger brown corundum powder to ensure the qualified brown corundum powder is subsequently melted in the arc melting furnace.

[0005] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: an arc melting furnace for brown corundum production with a feeding structure, comprising an arc melting furnace body, a brown corundum powder adding bucket, a rotating seat and inclined fins, a first feeding pipe, a second feeding pipe and a third feeding pipe are installed at equal angles through the upper end of the arc melting furnace body, the brown corundum powder adding bucket is horizontally installed on the upper ends of the first feeding pipe, the second feeding pipe and the third feeding pipe, a small servo motor is suspended in the middle of the upper end of the brown corundum powder adding bucket through a plurality of mounting strips, a brown corundum powder screen is horizontally fixed to the lower end of the outer side of the small servo motor, a motor extension shaft is arranged at the shaft end of the small servo motor, the rotating seat is horizontally fixed to the lower end of the motor extension shaft, a plurality of inclined fins are arranged, and a plurality of the inclined fins are installed at equal angles on the side surface of the rotating seat.

[0006] Furthermore, the arc melting furnace body is installed on the upper end of the melting furnace equipment.

[0007] Furthermore, a pressure gauge is installed on the left side of the upper end of the arc melting furnace body.

[0008] Furthermore, the brown corundum powder adding hopper is connected with the first feeding pipe, the second feeding pipe and the third feeding pipe.

[0009] Furthermore, a conical guide block is installed on the upper end of the small servo motor.

[0010] Furthermore, the brown corundum powder screen is in contact with the inner wall of the brown corundum powder adding bucket, and the lower ends of the plurality of inclined fins are in sliding contact with the lower end surface of the inner wall of the brown corundum powder adding bucket.

[0011] The beneficial effects of the utility model: the utility model is an arc melting furnace for brown corundum production with a feeding structure. Because the utility model adds a first feeding pipe, a second feeding pipe, a third feeding pipe, a brown corundum powder adding bucket, a conical guide block, a small servo motor, a mounting strip, a brown corundum powder screen, a motor extension shaft, a rotating seat and inclined fins, our design improvement and actual use show that the device has a reasonable structure and designs a uniform feeding structure, which can uniformly feed the introduced brown corundum powder and can also screen the larger brown corundum powder therein to ensure the subsequent melting effect of the qualified brown corundum powder entering the arc melting furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0013] Figure 1 It is a three-dimensional schematic diagram of the overall structure of an arc melting furnace for brown corundum production with a feeding structure according to the utility model;

[0014] Figure 2 It is a cross-sectional schematic diagram of a brown corundum powder adding bucket of an arc melting furnace for brown corundum production with a feeding structure according to the utility model;

[0015] Figure 3 It is a schematic diagram of the three-dimensional connection of the inclined fins of an arc melting furnace for brown corundum production with a feeding structure according to the utility model;

[0016] In the figure: 1-smelting furnace equipment, 2-arc melting furnace body, 3-pressure gauge, 4-first feeding pipe, 41-second feeding pipe, 42-third feeding pipe, 5-brown corundum powder adding hopper, 6-conical guide block, 7-small servo motor, 8-mounting strip, 9-brown corundum powder screen, 10-motor extension shaft, 11-rotating seat, 12-inclined fins. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0018] See also Figure 1-Figure 3 The utility model provides a technical solution: an arc melting furnace for producing brown corundum with a feeding structure, comprising an arc melting furnace body 2, a brown corundum powder adding hopper 5, a rotating seat 11 and inclined fins 12, a first feeding pipe 4, a second feeding pipe 41 and a third feeding pipe 42 are installed at equal angles on the upper end of the arc melting furnace body 2, the brown corundum powder adding hopper 5 is horizontally installed on the upper ends of the first feeding pipe 4, the second feeding pipe 41 and the third feeding pipe 42, a small servo motor 7 is suspended in the middle of the upper end of the brown corundum powder adding hopper 5 through a plurality of mounting strips 8, a brown corundum powder screen 9 is horizontally fixed to the lower end of the outer side of the small servo motor 7, a motor extension shaft 10 is arranged at the shaft end of the small servo motor 7, a rotating seat 11 is horizontally fixed to the lower end of the motor extension shaft 10, a plurality of inclined fins 12 are arranged, and a plurality of inclined fins 12 are installed at equal angles on the side surface of the rotating seat 11.

[0019] As the first embodiment of the utility model: the arc melting furnace body 2 is installed at the upper end of the melting furnace equipment 1. A pressure gauge 3 is installed on the left side of the upper end of the arc melting furnace body 2. The brown corundum powder adding hopper 5 is connected with the first feeding pipe 4, the second feeding pipe 41 and the third feeding pipe 42. Through the added first feeding pipe 4, the second feeding pipe 41 and the third feeding pipe 42, the brown corundum powder can be evenly added to the arc melting furnace body 2, so that the brown corundum powder will not be fed through a single feeding pipe and accumulate. A conical guide block 6 is installed on the upper end of the small servo motor 7. The added conical guide block 6 can prevent the brown corundum powder from falling on the upper end of the small servo motor 7.

[0020] The brown corundum powder screen 9 is in contact with the inner wall of the brown corundum powder adding bucket 5, and the lower ends of the multiple inclined fins 12 are slidably in contact with the lower end surface of the inner wall of the brown corundum powder adding bucket 5. When the added multiple inclined fins 12 are driven to rotate, the brown corundum powder in the brown corundum powder adding bucket 5 can be rotated, so that the brown corundum powder is evenly added into the arc melting furnace body 2 through the first feeding pipe 4, the second feeding pipe 41 and the third feeding pipe 42, and the arranged brown corundum powder screen 9 can screen and block larger brown corundum powder to prevent the larger brown corundum powder from blocking the first feeding pipe 4, the second feeding pipe 41 and the third feeding pipe 42, thereby ensuring the smooth feeding operation of the first feeding pipe 4, the second feeding pipe 41 and the third feeding pipe 42.

[0021] As a second embodiment of the utility model: in actual use, brown corundum powder is added to the brown corundum powder adding bucket 5, and the added conical guide block 6 can prevent the brown corundum powder from falling on the upper end of the small servo motor 7. The brown corundum powder screen 9 provided can screen and block the larger brown corundum powder to prevent the larger brown corundum powder from blocking the first feeding pipe 4, the second feeding pipe 41 and the third feeding pipe 42, thereby ensuring the smooth feeding operation of the first feeding pipe 4, the second feeding pipe 41 and the third feeding pipe 42, and then start the small servo motor 7. The servo motor 7, the small servo motor 7 can drive the motor extension shaft 10 to rotate, and the rotation of the motor extension shaft 10 will drive the rotating seat 11 and the multiple inclined fins 12 to rotate, and the rotating multiple inclined fins 12 can rotate and drive the brown corundum powder in the brown corundum powder adding bucket 5, so that the brown corundum powder can be evenly added into the arc melting furnace body 2 through the first feeding pipe 4, the second feeding pipe 41 and the third feeding pipe 42 (Note: the arc melting furnace is an existing mature technology, and its principle and steps of melting brown corundum powder will not be repeated).

[0022] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0023] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An arc melting furnace for producing brown corundum with a feeding structure, comprising an arc melting furnace body (2), a brown corundum powder feeding hopper (5), a rotating seat (11) and inclined fins (12), characterized in that: The upper end of the arc melting furnace body (2) is penetrated by a first feeding pipe (4), a second feeding pipe (41) and a third feeding pipe (42) at equal angles, and the brown corundum powder adding hopper (5) is horizontally installed on the upper ends of the first feeding pipe (4), the second feeding pipe (41) and the third feeding pipe (42); A small servo motor (7) is suspended in the middle of the upper end of the brown corundum powder adding bucket (5) through a plurality of mounting strips (8); a brown corundum powder screen (9) is horizontally fixed to the lower end of the outer side of the small servo motor (7); a motor extension shaft (10) is provided at the shaft end of the small servo motor (7); the rotating seat (11) is horizontally fixed to the lower end of the motor extension shaft (10); a plurality of inclined fins (12) are provided, and the plurality of inclined fins (12) are mounted at equal angles on the side surface of the rotating seat (11).

2. The arc melting furnace for brown corundum production with a feeding structure according to claim 1, characterized in that: The arc melting furnace body (2) is installed at the upper end of the melting furnace equipment (1).

3. The arc melting furnace for brown corundum production with a feeding structure according to claim 1, characterized in that: A pressure gauge (3) is installed on the left side of the upper end of the arc melting furnace body (2).

4. The arc melting furnace for brown corundum production with a feeding structure according to claim 1, characterized in that: The brown corundum powder adding hopper (5) is in communication with the first feeding pipe (4), the second feeding pipe (41) and the third feeding pipe (42).

5. The arc melting furnace for brown corundum production with a feeding structure according to claim 1, characterized in that: A conical guide block (6) is installed on the upper end of the small servo motor (7).

6. The arc melting furnace for brown corundum production with a feeding structure according to claim 1, characterized in that: The brown corundum powder screen (9) is in contact with the inner wall of the brown corundum powder adding bucket (5), and the lower ends of the plurality of inclined fins (12) are in contact with the lower end surface of the inner wall of the brown corundum powder adding bucket (5) in a sliding manner.

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