Vertical tank reduction furnace charging system

Abstract

The utility model discloses a vertical tank reduction furnace charging system, which comprises a main control box, a vertical tank reduction furnace and a travelling crane, the travelling crane is provided with a lifting hoisting device, the lower end of the lifting hoisting device is connected with a feeding barrel, the lower end of the feeding barrel is provided with a feeding control device, the feeding barrel is provided with a displacement positioning device, and the displacement positioning device is connected with the lifting hoisting device. And the feeding barrel is arranged in the vertical tank reduction furnace in a sliding manner after being moved into the vertical tank reduction furnace by the travelling crane. The charging system and the charging method for the vertical tank reduction furnace have the advantages that the pelletizing rate is high, crushing is not easy, charging is uniform, silicon consumption is reduced, and the ratio of material to magnesium is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of reduction furnaces, and in particular relates to a charging system for a vertical tank reduction furnace. Background Art

[0002] The reduction tank of the vertical tank reduction furnace is placed vertically, and the material is fed in and out by the gravity of the material itself. The specific process is: use a crane to transport the material box to the top of the reduction tank, and manual assistance is required to straighten the material box so that the material box outlet is aligned with the reduction tank outlet. The material in the material box falls directly into the reduction tank due to gravity. However, since the length of the vertical tank exceeds 6 meters, the material ball is more than 1 meter high and is easy to break when it falls, resulting in a low ball formation rate. The broken balls affect the magnesium output rate and heat conduction. Summary of the invention

[0003] The utility model aims to provide a vertical pot reduction furnace charging system to solve the above problems existing in the prior art.

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

[0005] A vertical tank reduction furnace charging system comprises a main control box, a vertical tank reduction furnace and a crane, wherein the crane is provided with a lifting and hoisting device, the lower end of the lifting and hoisting device is connected with a feeding bucket, the lower end of the feeding bucket is provided with a feeding control device, and the feeding bucket is provided with a displacement positioning device, and the feeding bucket can be slidably set in the vertical tank reduction furnace after being moved into the vertical tank reduction furnace by the crane.

[0006] The working process and principle of the above structure are as follows:

[0007] During operation, input the control command on the main control box, the crane drives the lifting and hoisting device to move above the feeding bucket, the lifting and hoisting device is connected to the feeding bucket, and then the feeding bucket is placed in the vertical tank reduction furnace, so that the lower end of the feeding bucket is located at the bottom of the vertical tank reduction furnace, turn on the feeding control device, and start feeding from the bottom of the vertical tank reduction furnace, which can prevent the pelletized material from breaking, has a high ball formation rate, is not easy to crush, and has uniform feeding, which is of great significance to reducing silicon consumption, reducing material-magnesium ratio, reducing costs and improving efficiency.

[0008] Furthermore, the feeding control device includes a pressure rod, a lifting rope and a pellet gate. The upper end of the feeding bucket is hinged with a pressure rod, one end of the pressure rod is connected to at least one lifting rope, and the lower end of each lifting rope is connected to a pellet gate. A limiting cavity is opened at the lower end of the feeding bucket corresponding to the position of the pellet gate, and a discharge port is opened on the inner side of the lower end of the feeding bucket. The discharge port is connected to the limiting cavity, and the pellet gate is vertically slidably arranged in the limiting cavity.

[0009] Through the lever action of the pressure rod, the pellet gate is driven by the suspension rope to move up and down along the limit cavity, so that the pellets are discharged from the discharge port into the vertical tank reduction furnace.

[0010] Furthermore, the lifting and hoisting device is a crane, and the lifting and hoisting device is connected with a hoisting rope, and the lower end of the hoisting rope is connected to the top of the feeding bucket.

[0011] The crane is used as a lifting and hoisting device, and the feeding bucket is driven to move by the winch rope.

[0012] Furthermore, there are four lifting ropes, which are evenly spaced and circumferentially distributed along the axis of the vertical tank reduction furnace. The lower ends of the four lifting ropes are respectively connected to a pellet gate plate. Four limiting cavities are opened on the inner wall of the lower end of the feeding bucket, and the four pellet gate plates are respectively slidably set in the four limiting cavities.

[0013] Four hanging ropes drive four pelletizing gates, which can be opened or closed at the same time to facilitate material discharge.

[0014] Furthermore, the displacement positioning device is a displacement sensor, and a signal output end of the displacement sensor is connected to a signal input end of a main control box.

[0015] The height position of the feeding bucket is detected by a displacement sensor to facilitate the determination of the feeding amount.

[0016] Furthermore, a central tube is provided at the central position inside the vertical tank reduction furnace, and an inner concave embedding cavity is provided at the middle part of the lower end of the feeding bucket corresponding to the position of the central tube.

[0017] The center tube is convenient for cooperating with the inner concave embedding cavity of the feeding bucket for positioning and feeding.

[0018] Beneficial effect: When the utility model is working, a control command is input on the main control box, and the crane drives the lifting and hoisting device to move above the feeding bucket. The lifting and hoisting device is connected to the feeding bucket, and then the feeding bucket is placed in the vertical tank reduction furnace, so that the lower end of the feeding bucket is located at the bottom of the vertical tank reduction furnace, the feeding control device is turned on, and the feeding starts from the bottom of the vertical tank reduction furnace, which can prevent the pelletized material from breaking, has a high ball formation rate, is not easy to crush, and has uniform feeding, which is of great significance for reducing silicon consumption, reducing material-magnesium ratio, reducing costs, and improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the overall structural front view of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the vertical tank reduction furnace in the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the feeding bucket in the utility model;

[0022] Figure 4 for Figure 3 AA section view of the middle feed barrel;

[0023] Figure 5 It is a partial side sectional view of the feeding barrel in the utility model.

[0024] Figure numerals: 1. main control box; 2. vertical tank reduction furnace; 3. crane; 4. lifting and hoisting device; 5. feeding bucket; 6. feeding control device; 61. pressure rod; 62. lifting rope; 63. pelletizing gate; 64. limit chamber; 7. displacement positioning device. DETAILED DESCRIPTION

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the utility model will be briefly introduced below in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the utility model, but does not constitute a limitation of the utility model. Example

[0026] like Figure 1-Figure 5 As shown, this embodiment provides a vertical tank reduction furnace charging system, including a main control box 1, a vertical tank reduction furnace 2 and a crane 3, the crane 3 is provided with a lifting and hoisting device 4, the lower end of the lifting and hoisting device 4 is connected with a feeding bucket 5, the lower end of the feeding bucket 5 is provided with a feeding control device 6, the feeding bucket 5 is provided with a displacement positioning device 7, and the feeding bucket 5 can be slidably set in the vertical tank reduction furnace 2 after being moved into the vertical tank reduction furnace 2 by the crane 3.

[0027] The working process and principle of the above structure are as follows:

[0028] During operation, a control command is input on the main control box 1, and the crane 3 drives the lifting and hoisting device 4 to move above the feeding bucket 5. The lifting and hoisting device 4 is connected to the feeding bucket 5, and then the feeding bucket 5 is placed in the vertical tank reduction furnace 2, so that the lower end of the feeding bucket 5 is located at the bottom of the vertical tank reduction furnace 2, and the feeding control device 6 is turned on. Feeding starts from the bottom of the vertical tank reduction furnace 2, which can prevent the pelletized material from breaking, has a high balling rate, is not easy to crush, and has uniform feeding, which is of great significance for reducing silicon consumption, reducing material-magnesium ratio, reducing costs, and improving efficiency.

[0029] In another embodiment of the present invention, Figure 3As shown, the feeding control device 6 includes a pressure rod 61, a lifting rope 62 and a pellet gate 63. The upper end of the feeding bucket 5 is hinged with a pressure rod 61, one end of the pressure rod 61 is connected to at least one lifting rope 62, and the lower end of each lifting rope 62 is connected to a pellet gate 63. A limiting cavity 64 is opened at the lower end of the feeding bucket 5 corresponding to the position of the pellet gate 63, and a discharge port is opened on the inner side of the lower end of the feeding bucket 5, and the discharge port is connected to the limiting cavity 64, and the pellet gate 63 is vertically slidably set in the limiting cavity 64.

[0030] Through the lever action of the pressure rod 61, the pellet gate 63 is driven by the suspension rope 62 to move up and down along the limiting cavity 64, so that the pellets are discharged from the discharge port into the vertical tank reduction furnace 2.

[0031] In another embodiment of the present invention, Figure 1 As shown, the lifting and hoisting device 4 is a crane, and the lifting and hoisting device 4 is connected with a hoisting rope, and the lower end of the hoisting rope is connected to the top of the feeding bucket 5.

[0032] The crane is used as a lifting and hoisting device 4, and the feeding bucket 5 is driven to move by a winch rope.

[0033] In another embodiment of the present invention, Figure 4 and Figure 5 As shown, there are four lifting ropes 62, which are evenly spaced and circumferentially distributed along the axis of the vertical tank reduction furnace 2. The lower ends of the four lifting ropes 62 are respectively connected to a pelletizing gate 63, and four limiting cavities 64 are opened on the inner wall of the lower end of the feeding bucket 5. The four pelletizing gates 63 are respectively slidably set in the four limiting cavities 64.

[0034] Four suspension ropes 62 drive four pelletizing gates 63, which can be opened or closed at the same time to facilitate material discharge.

[0035] In another embodiment of the present invention, the displacement positioning device 7 is a displacement sensor, and a signal output end of the displacement sensor is connected to a signal input end of the main control box 1 .

[0036] The height position of the feeding bucket 5 is detected by a displacement sensor to facilitate determination of the feeding amount.

[0037] In another embodiment of the utility model, a central tube is provided at the central position inside the vertical pot reduction furnace 2, and a concave embedding cavity is provided at the middle of the lower end of the feeding bucket 5 corresponding to the position of the central tube.

[0038] The center tube is convenient for cooperating with the inner concave embedding cavity of the feeding bucket for positioning and feeding.

[0039] A charging method for a vertical tank reduction furnace charging system comprises the following steps:

[0040] In response to the input control command of the main control box 1, the feeding bucket 5 is moved to the top of the vertical tank reduction furnace 2 through the crane 3 and the lifting and hoisting device 4;

[0041] The feeding bucket 5 is lowered into the bottom of the vertical tank reduction furnace 2 by the lifting and hoisting device 4;

[0042] The feeding control device 6 starts to discharge materials, so that the materials fall into the bottom of the vertical tank reduction furnace 2;

[0043] The feeding bucket 5 is driven to move upward slowly by the lifting and hoisting device 4, so that the pelletized material is evenly and slowly fed from the bottom of the vertical tank reduction furnace 2;

[0044] The lifting height of the feeding bucket 5 is detected by the displacement sensor. After reaching the predetermined height, the main control box 1 controls the feeding control device 6 to close and stop feeding;

[0045] The feeding bucket 5 is moved out of the vertical tank reduction furnace 2 by the lifting and hoisting device 4 .

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vertical tank reduction furnace charging system, characterized in that: It includes a main control box, a vertical tank reduction furnace and a crane. The crane is provided with a lifting and hoisting device. The lower end of the lifting and hoisting device is connected to a feeding bucket. The lower end of the feeding bucket is provided with a feeding control device. The feeding bucket is provided with a displacement positioning device. The feeding bucket can be slidably set in the vertical tank reduction furnace after being moved into the vertical tank reduction furnace by the crane.

2. The vertical reduction furnace charging system according to claim 1, characterized in that: The feeding control device includes a pressure rod, a lifting rope and a pellet gate. The upper end of the feeding bucket is hinged with a pressure rod, one end of the pressure rod is connected to at least one lifting rope, and the lower end of each lifting rope is connected to a pellet gate. A limit cavity is provided at the lower end of the feeding bucket corresponding to the position of the pellet gate, and a discharge port is provided on the inner side of the lower end of the feeding bucket, and the discharge port is connected to the limit cavity. The pellet gate is vertically slidably arranged in the limit cavity.

3. The vertical tank reduction furnace charging system according to claim 1, characterized in that: The lifting and hoisting device is a crane, and the lifting and hoisting device is connected with a hoisting rope, and the lower end of the hoisting rope is connected to the top of the feeding bucket.

4. The vertical tank reduction furnace charging system according to claim 2, characterized in that: There are four lifting ropes, which are evenly spaced and circumferentially distributed along the axis of the vertical tank reduction furnace. The lower ends of the four lifting ropes are respectively connected to a pellet gate plate. Four limiting cavities are opened on the inner wall of the lower end of the feeding bucket, and the four pellet gate plates are respectively slidably set in the four limiting cavities.

5. The vertical reduction furnace charging system according to claim 1, characterized in that: The displacement positioning device is a displacement sensor, and a signal output end of the displacement sensor is connected to a signal input end of a main control box.

6. The vertical reduction furnace charging system according to claim 2, characterized in that: A central tube is arranged at the central position inside the vertical tank reduction furnace, and a concave embedding cavity is arranged at the position corresponding to the central tube in the middle part of the lower end of the feeding bucket.

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