Double-material ejection feeding device for special steel production

Abstract

The utility model relates to the field of special steel production, in particular to a double-material ejection feeding device for special steel production, which comprises a first bin body, a second bin body, an LF (ladle furnace) and a nitrogen tank body, the bottom of the first bin body and the bottom of the second bin body are each sequentially provided with an adjusting valve, a feeding valve, a weighing tank, a discharging valve, a variable-frequency feeder and a discharging pipe. One side of the nitrogen tank is connected with a conveying gas pipe, the other end of the conveying gas pipe is connected with a first connecting header pipe and a second connecting header pipe through a three-way valve, and the other ends of the first connecting header pipe and the second connecting header pipe are connected with a conveying pipeline through a three-way valve. According to the device, the first bin body and the second bin body are used for storing the carburant and the deoxidant respectively, it is guaranteed that the materials are preliminarily mixed before entering the LF refining furnace, the uniformity of the materials is guaranteed, and the conveying efficiency of the LF refining furnace can be improved due to the fact that the multiple conveying pipelines are used for conveying the materials.

Description

Technical Field

[0001] The utility model relates to the technical field of special steel production, in particular to a double-material ejection and feeding device for special steel production. Background Art

[0002] Special steel, also known as special steel, is the most important type of steel used in most industries of the national economy, such as machinery, automobiles, military industry, chemical industry, home appliances, ships, transportation, railways and emerging industries.

[0003] In the production process of existing special steel, most of its materials can only be added one by one, and its feeding efficiency is low. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a dual-material ejection and feeding device for special steel production.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A dual-material ejection and feeding device for special steel production comprises a first bin, a second bin, an LF refining furnace, and a nitrogen tank. The first bin and the second bin are symmetrically arranged, and a regulating valve, a feed valve, a weighing tank, a discharge valve, a variable frequency feeder, and a discharge pipe are sequentially installed at the bottom of the first bin and the second bin;

[0007] One side of the nitrogen tank is connected to a delivery pipe, and the other end of the delivery pipe is respectively connected to a first connecting main pipe and a second connecting main pipe through a three-way valve, and the other ends of the first connecting main pipe and the second connecting main pipe are connected to a delivery pipeline through a three-way valve.

[0008] In addition, a preferred structure is that support frames are installed on the outside of the first warehouse body and the second warehouse body, and a feed port and a warehouse top dust collector are sequentially provided on the top of the first warehouse body and the second warehouse body.

[0009] In addition, a preferred structure is that an air inlet is provided at one end of the nitrogen tank body, and an air outlet is provided at the other end of the nitrogen tank body, and the air outlet is connected to the air delivery pipe.

[0010] In addition, a preferred structure is that a plurality of feed holes are opened at equal distances on the top of the LF refining furnace, and a plurality of electrodes are arranged at equal distances on the top of the LF refining furnace.

[0011] In addition, a preferred structure is that the other end of the delivery pipe is connected to the first delivery pipe and the second delivery pipe respectively through a three-way valve, and the other end of the first delivery pipe is connected to the fourth delivery pipe and the fifth delivery pipe respectively through a three-way valve, and the other end of the second delivery pipe is connected to the sixth delivery pipe and the seventh delivery pipe respectively through a three-way valve.

[0012] In addition, a preferred structure is that the other ends of the fourth conveying pipe, the fifth conveying pipe, the sixth conveying pipe, and the seventh conveying pipe are all inserted into the feed hole at the top of the LF refining furnace.

[0013] The beneficial effects of the utility model are:

[0014] In the utility model, a first bin and a second bin are provided to store the carburizer and the deoxidizer respectively, and the gas is transported to the first bin and the second bin respectively through a nitrogen tank, and the carburizer and the deoxidizer are transported to the conveying pipeline through the gas, and preliminary mixing is performed during the transportation in the conveying pipeline, and the mixed materials are transported to the LF refining furnace through the fourth conveying pipeline, the fifth conveying pipeline, the sixth conveying pipeline, and the seventh conveying pipeline respectively, so as to ensure that the materials are preliminarily mixed before entering the LF refining furnace, ensure the uniformity of the materials, and transport through multiple conveying pipelines, which can improve the transportation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the dual-material ejection and feeding device for special steel production proposed by the utility model;

[0016] Figure 2 This is a side view of the structural schematic diagram of the dual-material ejection and feeding device for special steel production proposed by the utility model;

[0017] Figure 3 The utility model is a schematic diagram of the structure of the double material ejection and feeding device for special steel production from a top view.

[0018] In the figure: 1. first silo; 2. second silo; 3. regulating valve; 4. feed valve; 5. weighing tank; 6. discharge valve; 7. frequency conversion feeder; 8. nitrogen tank; 81. gas delivery pipe; 9. first connecting main pipe; 10. delivery pipeline; 11. feed port; 12. silo top dust collector; 13. LF refining furnace. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-3 , a dual-material ejection and feeding device for special steel production, comprising a first bin body 1, a second bin body 2, an LF refining furnace 13, and a nitrogen tank body 8. The first bin body 1 and the second bin body 2 are symmetrically arranged, and a regulating valve 3, a feed valve 4, a weighing tank 5, a discharge valve 6, a variable frequency feeder 7, and a discharge pipe are sequentially installed at the bottom of the first bin body 1 and the second bin body 2;

[0021] Among them, one side of the nitrogen tank body 8 is connected to a delivery air pipe 81, and the other end of the delivery air pipe 81 is respectively connected to the first connecting main pipe 9 and the second connecting main pipe through a three-way valve, and the other ends of the first connecting main pipe 9 and the second connecting main pipe are connected to a delivery pipeline 10 through a three-way valve.

[0022] At the same time, support frames are installed on the outside of the first warehouse body 1 and the second warehouse body 2, and the tops of the first warehouse body 1 and the second warehouse body 2 are respectively provided with a feed port 11 and a warehouse top dust collector 12.

[0023] In addition, an air inlet is disposed at one end of the nitrogen tank body 8 , and an air outlet is disposed at the other end of the nitrogen tank body 8 , and the air outlet is connected to the air delivery pipe 81 .

[0024] The top of the LF refining furnace 13 is provided with a plurality of feed holes at equal distances, and the top of the LF refining furnace 13 is provided with a plurality of electrodes at equal distances.

[0025] Furthermore, the other end of the delivery pipe 10 is connected to the first delivery pipe and the second delivery pipe respectively through a three-way valve, and the other end of the first delivery pipe is connected to the fourth delivery pipe and the fifth delivery pipe respectively through a three-way valve, and the other end of the second delivery pipe is connected to the sixth delivery pipe and the seventh delivery pipe respectively through a three-way valve.

[0026] Furthermore, the other ends of the fourth conveying pipe, the fifth conveying pipe, the sixth conveying pipe, and the seventh conveying pipe are all inserted into the feed hole at the top of the LF refining furnace 13 .

[0027] In this embodiment, the first bin body 1 and the second bin body 2 are provided to store the carburizer and the deoxidizer respectively, and the nitrogen tank body 8 is used to transport the gas to the first connecting main pipe 9 and the second connecting main pipe through the transporting gas pipe 81, and then the gas is transported to the corresponding first bin body 1 and the second bin body 2. During this period, the first bin body 1 sequentially transports the carburizer to the first connecting main pipe 9 through the regulating valve 3, the feeding valve 4, the weighing tank 5, the discharging valve 6, the variable frequency feeder 7, and the down pipe, and the second bin body 2 sequentially transports the carburizer to the second connecting main pipe through the regulating valve 3, the feeding valve 4, the weighing tank 5, the discharging valve 6, the variable frequency feeder 7, and the down pipe. Deoxidizer is delivered, so that when the gas passes through the first connecting main pipe 9 and the second connecting main pipe refrigerator and moves in the delivery pipe 10 respectively, the gas will transport the material to the delivery pipe 10 through the gas, and the carburizer and the deoxidizer are preliminarily mixed during the transportation inside the delivery pipe 10, and the mixed materials are transported to the LF refining furnace 13 through the fourth delivery pipe, the fifth delivery pipe, the sixth delivery pipe, and the seventh delivery pipe respectively, so as to ensure that the materials are preliminarily mixed before entering the LF refining furnace 13, ensure the uniformity of the materials, and transport through multiple delivery pipes, which can improve the transportation efficiency.

[0028] At the same time, the material discharge rate of the first bin body 1 and the second bin body 2 can be adjusted by the regulating valve 3, and the material can be weighed by the weighing tank 5 to ensure that the weight of the material is consistent when it enters the first connecting main pipe 9 and the second connecting main pipe, thereby ensuring the uniformity of the carbon enhancer and the deoxidizer when mixed in the conveying pipeline 10.

[0029] In the utility model, a first bin body 1 and a second bin body 2 are provided to store the carburizer and the deoxidizer respectively, and the gas is transported to the first bin body 1 and the second bin body 2 respectively through a nitrogen tank body 8, and the carburizer and the deoxidizer are transported to a conveying pipe 10 through the gas, and preliminary mixing is performed during transportation in the conveying pipe 10, and the mixed materials are transported to the LF refining furnace 13 through four conveying pipes, a fifth conveying pipe, a sixth conveying pipe, and a seventh conveying pipe, respectively, so as to ensure that the materials are preliminarily mixed before entering the LF refining furnace 13, to ensure the uniformity of the materials, and the transportation efficiency can be improved by transporting the materials through multiple conveying pipes.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A dual-material ejection and feeding device for special steel production, comprising a first bin (1), a second bin (2), an LF refining furnace (13), and a nitrogen tank (8), characterized in that: The first bin body (1) and the second bin body (2) are symmetrically arranged, and a regulating valve (3), a feed valve (4), a weighing tank (5), a discharge valve (6), a variable frequency feeder (7), and a discharge pipe are sequentially installed at the bottom of the first bin body (1) and the second bin body (2); One side of the nitrogen tank body (8) is connected to a delivery pipe (81), and the other end of the delivery pipe (81) is respectively connected to a first connecting main pipe (9) and a second connecting main pipe through a three-way valve, and the other ends of the first connecting main pipe (9) and the second connecting main pipe are connected to a delivery pipeline (10) through a three-way valve.

2. The dual-material ejection and feeding device for special steel production according to claim 1, characterized in that: Support frames are installed on the outside of the first warehouse body (1) and the second warehouse body (2), and a feed port (11) and a warehouse top dust collector (12) are arranged on the top of the first warehouse body (1) and the second warehouse body (2) in sequence.

3. The dual-material ejection and feeding device for special steel production according to claim 1, characterized in that: One end of the nitrogen tank body (8) is provided with an air inlet, and the other end of the nitrogen tank body (8) is provided with an air outlet, and the air outlet is connected to the air delivery pipe (81).

4. The dual-material ejection and feeding device for special steel production according to claim 1, characterized in that: A plurality of feed holes are provided at equal intervals on the top of the LF refining furnace (13), and a plurality of electrodes are provided at equal intervals on the top of the LF refining furnace (13).

5. The dual-material ejection and feeding device for special steel production according to claim 1, characterized in that: The other end of the delivery pipe (10) is connected to the first delivery pipe and the second delivery pipe respectively through a three-way valve, and the other end of the first delivery pipe is connected to the fourth delivery pipe and the fifth delivery pipe respectively through a three-way valve, and the other end of the second delivery pipe is connected to the sixth delivery pipe and the seventh delivery pipe respectively through a three-way valve.

6. The dual-material ejection and feeding device for special steel production according to claim 5, characterized in that: The other ends of the fourth conveying pipe, the fifth conveying pipe, the sixth conveying pipe and the seventh conveying pipe are all inserted into the feed hole at the top of the LF refining furnace (13).

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