Furnace charging structure capable of optimizing furnace charge particle size for blast furnace ironmaking

Abstract

The utility model relates to the technical field of furnace charging structures, and discloses a furnace charging structure capable of optimizing the particle size of furnace charge for blast furnace ironmaking. The furnace charging structure capable of optimizing the furnace charge particle size for blast furnace ironmaking comprises a screening box, a vibration motor is fixedly installed at the top of the screening box, a feeding groove is fixedly installed on one side of the top of the screening box, a discharging groove is fixedly installed in the middle of one side of the screening box, and a discharging port is fixedly installed at the bottom of one side of the screening box. Vibration is generated through operation of the motor, and furnace charge is screened through the three layers of screening nets with different hole diameters after being fed through the feeding groove, so that the furnace charge can be screened into three parts to be fed into the corresponding collecting grooves; a cover plate is driven to turn over by turning over an electric hinge at the bottom of a corresponding collecting tank, so that the corresponding furnace charge is guided into a feeding hopper through a filter screen after being sent out, and the furnace charge with the corresponding size can be sent into the blast furnace.

Description

Technical Field

[0001] This utility model relates to the field of furnace charging structure technology, specifically a furnace charging structure for blast furnace ironmaking that can optimize the particle size of the furnace charge. Background Technology

[0002] A blast furnace uses steel plates as its outer shell, lined with refractory bricks. The blast furnace body is divided into five parts from top to bottom: the throat, the body, the waist, the belly, and the hearth. Due to the advantages of blast furnace ironmaking, such as good technical and economic indicators, simple process, large production capacity, high labor productivity, and low energy consumption, iron produced using this method accounts for the vast majority of the world's total iron production.

[0003] The existing Chinese utility model patent with publication number CN214289292U discloses a blast furnace feeding vibrating screen device, relating to the field of blast furnace technology. Specifically, the device includes a housing with a first through hole inside. A first rotating shaft is inserted into the first through hole, and a screen plate is sleeved on the outer surface of the first rotating shaft. A sliding rod is fixedly connected to one end of the screen plate. This blast furnace feeding vibrating screen device, through the cooperation of a cam and the screen plate, allows a first motor to rotate, driving a second rotating shaft, which in turn rotates the cam. This causes the screen plate to vibrate around the first rotating shaft, performing screening and thus achieving the purpose of filtering and screening, ensuring production quality and efficiency. Through the cooperation of a spring and a shock-absorbing plate, the shock-absorbing plate supports the sliding rod during use, while the compressed spring provides shock absorption, preventing the sliding rod from directly impacting the housing and protecting the vibrating screen device.

[0004] The existing blast furnace charging structure is not conducive to optimizing the particle size of the charge, which can easily lead to different particle sizes of the charge entering the blast furnace and cause powder to enter the blast furnace, thus affecting the operation of the blast furnace. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a furnace feeding structure for blast furnace ironmaking that optimizes the particle size of the furnace charge, offering advantages such as easy control of the particle size of the furnace charge, and solving the aforementioned technical problems.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a furnace feed structure for blast furnace ironmaking that optimizes the particle size of the furnace charge, comprising:

[0009] A screening box is provided, with a vibrating motor fixedly installed on its top, a feed chute fixedly installed on one side of the top of the screening box, a discharge chute fixedly installed in the middle of one side of the screening box, a discharge port fixedly installed at the bottom of one side of the screening box, a filter screen fixedly installed at the bottom of the screening box, a baffle fixedly installed on one side of the bottom of the filter screen, a guide plate fixedly installed on one side of the baffle, a screening mesh fixedly installed inside the screening box, a collection trough fixedly installed on one side of the screening mesh, an electric hinge fixedly installed at the bottom of the collection trough, a cover plate movably connected to one side of the electric hinge, and a guide plate fixedly installed on one side of the collection trough.

[0010] As a preferred embodiment of this utility model, a base plate is fixedly installed at the bottom of the screening box, and two support blocks are fixedly installed on both sides of one side of the base plate. The support blocks are structures used for support.

[0011] As a preferred embodiment of this utility model, two damping springs are fixedly installed on both sides of the bottom of the support block, and a base is fixedly installed on the bottom of the damping springs. The base is a structure used to support the bottom.

[0012] As a preferred embodiment of this utility model, damping springs are fixedly installed on both sides of the bottom of the base plate, and a support seat is fixedly installed at the bottom of the damping spring. The support seat is a structure used to support the bottom.

[0013] As a preferred technical solution of this utility model, a feeding hopper is movably connected to one side of the bottom of the base plate, and an auger feeding device is fixedly installed at the bottom of the feeding hopper. The auger feeding device is a structure used for feeding materials.

[0014] As a preferred embodiment of this utility model, a support rod is fixedly installed at the bottom of the auger feeding device, and the support rod is a structure for support.

[0015] As a preferred embodiment of this utility model, an auger feeding device is movably connected to one side of the auger feeding device, and a support column is fixedly installed at the bottom of the auger feeding device. The support column is a structure used to support the auger feeding device.

[0016] Compared with the prior art, this utility model provides a furnace charging structure for blast furnace ironmaking that can optimize the particle size of the furnace charge, and has the following beneficial effects:

[0017] 1. This utility model uses the vibration generated by the operation of a motor to feed the furnace charge through the feeding chute. The charge is then screened by three layers of screening screens with different apertures, thus dividing the charge into three parts and sending them into the corresponding collection troughs. When a specific size of charge needs to be sent out, the electric hinge at the bottom of the corresponding collection trough flips, thereby causing the cover plate to flip and sending out the corresponding charge. After being guided by the filter screen, the charge is sent into the feeding hopper, thus sending the charge of the corresponding size into the blast furnace. This improves the practicality of the furnace feeding structure for blast furnace ironmaking, which can optimize the particle size of the charge, so as to facilitate the optimization of the charge particle size.

[0018] 2. This utility model guides the screened dust out of the discharge chute through the guide plate, and guides the powder in the furnace charge out of the discharge port through the guide plate at the bottom of the filter screen. This improves the practicality of the furnace charging structure for blast furnace ironmaking that can optimize the particle size of the furnace charge. This avoids the problem of mixed powder in the furnace charge entering the blast furnace and affecting its use. The furnace charge can be fed into the auger feeding device through the auger feeding device and then into the blast furnace. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the screening box of this utility model;

[0021] Figure 3 This is a schematic diagram of the screening mesh of this utility model;

[0022] Figure 4 This is a schematic diagram of the base plate of this utility model;

[0023] Figure 5 This is a schematic diagram of the feed hopper of this utility model.

[0024] The components are as follows: 1. Screening box; 11. Vibrating motor; 12. Feed chute; 13. Discharge chute; 14. Discharge port; 15. Filter screen; 16. Baffle; 17. Guide plate; 2. Screening screen; 21. Collection trough; 22. Electric hinge; 23. Cover plate; 24. Guide plate; 3. Base plate; 31. Support block; 32. Damping spring; 33. Base; 34. Support seat; 4. Feed hopper; 41. Screw conveyor feeding device; 42. Support rod; 43. Screw feeder; 44. Support column. Detailed Implementation

[0025] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0026] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Please see Figure 1 - Figure 5 In this embodiment, a furnace feeding structure for blast furnace ironmaking that can optimize the particle size of furnace charge includes: a screening box 1, a vibration motor 11 fixedly installed on the top of the screening box 1, a feed chute 12 fixedly installed on one side of the top of the screening box 1, a discharge chute 13 fixedly installed in the middle of one side of the screening box 1, a discharge port 14 fixedly installed at the bottom of one side of the screening box 1, a filter screen 15 fixedly installed at the bottom inside the screening box 1, a baffle 16 fixedly installed on one side of the bottom of the filter screen 15, and a guide plate 17 fixedly installed on one side of the baffle 16.

[0029] Specifically, vibration can be generated by the vibration motor 11, the furnace material can be fed in through the feed chute 12, the powder can be discharged through the discharge chute 13 and the discharge port 14, and the powder can be screened out through the filter screen 15.

[0030] A screening screen 2 is fixedly installed inside the screening box 1. A collection trough 21 is fixedly installed on one side of the screening screen 2. An electric hinge 22 is fixedly installed at the bottom of the collection trough 21. A cover plate 23 is movably connected to one side of the electric hinge 22. A guide plate 24 is fixedly installed on one side of the collection trough 21.

[0031] Specifically, the furnace charge can be screened into three parts by three layers of screening screens with different apertures 2, and sent into the interior of three corresponding collection tanks 21 respectively. The cover plate 23 of the bottom plate 3 can be opened by the operation of the electric hinge 22 at the bottom of the collection tank 21.

[0032] A base plate 3 is fixedly installed at the bottom of the screening box 1. Two support blocks 31 are fixedly installed on one side of the base plate 3. Two damping springs 32 are fixedly installed on the bottom sides of the support blocks 31. A base 33 is fixedly installed at the bottom of the damping springs 32. Two damping springs 32 are fixedly installed on the other side of the bottom of the base plate 3. A support seat 34 is fixedly installed at the bottom of the damping springs 32.

[0033] Specifically, the bottom can be supported by the base plate 3, and the damping spring 32 at the bottom of the support block 31 and the damping spring 32 at the bottom of the base plate 3 can play a buffering and shock absorption effect. The bottom can also be supported by the support seat 34 and the base 33.

[0034] A feeding hopper 4 is movably connected to one side of the bottom of the base plate 3. An auger feeding device 41 is fixedly installed at the bottom of the feeding hopper 4. A support rod 42 is fixedly installed at the bottom of the auger feeding device 41. An auger infeed device 43 is movably connected to one side of the auger feeding device 41. A support column 44 is fixedly installed at the bottom of the auger infeed device 43.

[0035] Specifically, the material is fed through the feed hopper 4, and the screened furnace material can be fed into the auger feeding device 43 through the auger feeding device 41. The auger feeding device 41 can be supported by the support rod 42, and the auger feeding device 43 can be supported by the support column 44.

[0036] In use, firstly, the furnace feeding structure for blast furnace ironmaking, which optimizes the particle size of the furnace charge, is placed in the designated position. The vibration motor 11 at the top of the screening box 1 causes the screening box 1 to vibrate. The damping springs 32 on both sides of the bottom plate 3 and the bottom of the support block 31 at the bottom of the screening box 1 provide cushioning and shock absorption. The base 33 and support seat 34 provide support to the bottom. The furnace charge is fed in through the feed chute 12. The vibration of the screening box 1 causes the screening screen 2 and filter screen 15 to vibrate. The three layers of screening screens 2 with different apertures can separate the furnace charge into three parts. The guide plate 24 guides the powder in the furnace charge and then sends it out through the discharge chute 13. This improves the practicality of the furnace feeding structure for blast furnace ironmaking that optimizes the particle size of the furnace charge. The three parts of the furnace charge are collected in the corresponding collection troughs 21. When it needs to be sent out to a designated furnace... During the feeding process, the operation of the electric hinge 22 at the bottom of the corresponding collection trough 21 can drive the cover plate 23 to flip, thereby sending out the designated furnace charge. The vibration of the filter screen 15 can guide the furnace charge out, and the filter screen 15 can screen the powder in the furnace charge again, thereby preventing the powder from entering the interior of the blast furnace. This improves the practicality of the furnace charging structure for blast furnace ironmaking that can optimize the particle size of the furnace charge. The powder screened out in the second screening is sent out from the inside of the discharge port 14 through the guide plate 17, which improves the practicality of the furnace charging structure for blast furnace ironmaking that can optimize the particle size of the furnace charge. The furnace charge is fed through the feed hopper 4, and the screened furnace charge can be sent into the inside of the auger feed device 43 through the auger feed device 41. The auger feed device 41 can be supported by the support rod 42, and the auger feed device 43 can be supported by the support column 44, which improves the practicality of the furnace charging structure for blast furnace ironmaking that can optimize the particle size of the furnace charge.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A furnace charging structure for blast furnace ironmaking that optimizes the particle size of the furnace charge, characterized in that, The blast furnace ironmaking charging structure for optimizing the particle size of the furnace charge includes a screening box (1). A vibration motor (11) is fixedly installed on the top of the screening box (1). A feed chute (12) is fixedly installed on one side of the top of the screening box (1). A discharge chute (13) is fixedly installed in the middle of one side of the screening box (1). A discharge port (14) is fixedly installed at the bottom of one side of the screening box (1). A filter screen (15) is fixedly installed at the bottom of the interior of the screening box (1). A baffle (16) is fixedly installed on one side of the bottom of the screening box (1), and a guide plate (17) is fixedly installed on one side of the baffle (16). A screening screen (2) is fixedly installed inside the screening box (1). A collection trough (21) is fixedly installed on one side of the screening screen (2). An electric hinge (22) is fixedly installed at the bottom of the collection trough (21). A cover plate (23) is movably connected to one side of the electric hinge (22). A guide plate (24) is fixedly installed on one side of the collection trough (21).

2. The furnace charging structure for blast furnace ironmaking with optimized burden particle size according to claim 1, characterized in that: The bottom of the screening box (1) is fixedly installed with a base plate (3), and two support blocks (31) are fixedly installed on both sides of one side of the base plate (3).

3. The furnace charging structure for blast furnace ironmaking with optimized burden particle size according to claim 2, characterized in that: Two damping springs (32) are fixedly installed on both sides of the bottom of the support block (31), and a base (33) is fixedly installed on the bottom of the damping springs (32).

4. The furnace charging structure for blast furnace ironmaking with optimized burden particle size according to claim 3, characterized in that: Damping springs (32) are fixedly installed on both sides of the bottom of the base plate (3), and a support base (34) is fixedly installed on the bottom of the damping springs (32).

5. The furnace charging structure for blast furnace ironmaking with optimized burden particle size according to claim 2, characterized in that: A feeding hopper (4) is movably connected to one side of the bottom of the base plate (3), and an auger feeding device (41) is fixedly installed at the bottom of the feeding hopper (4).

6. The furnace charging structure for blast furnace ironmaking with optimized burden particle size according to claim 5, characterized in that: A support rod (42) is fixedly installed at the bottom of the auger feeding device (41).

7. The furnace charging structure for blast furnace ironmaking with optimized burden particle size according to claim 6, characterized in that: The auger feeding device (41) is movably connected to one side of the auger feeder (43), and a support column (44) is fixedly installed at the bottom of the auger feeder (43).

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